xm_api.c revision a4575499679d9d91055a35c7673b81872ec127cb
1a4575499679d9d91055a35c7673b81872ec127cbJouk Jansen/* $Id: xm_api.c,v 1.3 2000/10/30 08:39:38 joukj Exp $ */ 2693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 3693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 4693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Mesa 3-D graphics library 5693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Version: 3.3 6693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 7693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. 8693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 9693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Permission is hereby granted, free of charge, to any person obtaining a 10693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * copy of this software and associated documentation files (the "Software"), 11693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * to deal in the Software without restriction, including without limitation 12693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * and/or sell copies of the Software, and to permit persons to whom the 14693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Software is furnished to do so, subject to the following conditions: 15693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 16693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * The above copyright notice and this permission notice shall be included 17693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * in all copies or substantial portions of the Software. 18693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 19693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 23693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 26693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 27693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 28693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 29693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * This file contains the implementations of all the XMesa* functions. 30693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 31693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 32693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * NOTES: 33693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 34693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * The window coordinate system origin (0,0) is in the lower-left corner 35693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * of the window. X11's window coordinate origin is in the upper-left 36693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * corner of the window. Therefore, most drawing functions in this 37693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * file have to flip Y coordinates. 38693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 39693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Define USE_XSHM in the Makefile with -DUSE_XSHM if you want to compile 40693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * in support for the MIT Shared Memory extension. If enabled, when you 41693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * use an Ximage for the back buffer in double buffered mode, the "swap" 42693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * operation will be faster. You must also link with -lXext. 43693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 44693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Byte swapping: If the Mesa host and the X display use a different 45693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * byte order then there's some trickiness to be aware of when using 46693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * XImages. The byte ordering used for the XImage is that of the X 47693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * display, not the Mesa host. 48693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * The color-to-pixel encoding for True/DirectColor must be done 49693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * according to the display's visual red_mask, green_mask, and blue_mask. 50693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * If XPutPixel is used to put a pixel into an XImage then XPutPixel will 51693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * do byte swapping if needed. If one wants to directly "poke" the pixel 52693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * into the XImage's buffer then the pixel must be byte swapped first. In 53693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Mesa, when byte swapping is needed we use the PF_TRUECOLOR pixel format 54693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * and use XPutPixel everywhere except in the implementation of 55693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * glClear(GL_COLOR_BUFFER_BIT). We want this function to be fast so 56693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * instead of using XPutPixel we "poke" our values after byte-swapping 57693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the clear pixel value if needed. 58693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 59693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 60693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 61693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef __CYGWIN__ 62693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#undef WIN32 63693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#undef __WIN32__ 64693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 65693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 66693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "glxheader.h" 67693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "GL/xmesa.h" 68693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "xmesaP.h" 69693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "context.h" 70693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "extensions.h" 71693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "glthread.h" 72693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "matrix.h" 73693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "mem.h" 74693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "types.h" 75693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef HAVE_CONFIG_H 76693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "conf.h" 77693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 78a4575499679d9d91055a35c7673b81872ec127cbJouk Jansen#include "macros.h" 79693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef GLX_NONE_EXT 81693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#define GLX_NONE_EXT 0x8000 82693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 83693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 84693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 85693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 86693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Global X driver lock 87693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 88693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul_glthread_Mutex _xmesa_lock; 89693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 90693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 91693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 92693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 93693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Lookup tables for HPCR pixel format: 94693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 95693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic short hpcr_rgbTbl[3][256] = { 96693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 97693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 98693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 99693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, 100693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 101693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 102693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 103693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 104693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 105693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 106693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 107693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 108693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 109693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 110693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 111693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 112693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239 113693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul}, 114693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 115693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 116693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 117693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, 118693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 119693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 120693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 121693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 122693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 123693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 124693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 125693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 126693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 127693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 128693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 129693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 130693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239 131693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul}, 132693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 133693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, 134693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 40, 40, 41, 41, 42, 42, 43, 43, 44, 44, 45, 45, 46, 46, 47, 47, 135693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 48, 48, 49, 49, 50, 50, 51, 51, 52, 52, 53, 53, 54, 54, 55, 55, 136693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 56, 56, 57, 57, 58, 58, 59, 59, 60, 60, 61, 61, 62, 62, 63, 63, 137693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 64, 64, 65, 65, 66, 66, 67, 67, 68, 68, 69, 69, 70, 70, 71, 71, 138693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 72, 72, 73, 73, 74, 74, 75, 75, 76, 76, 77, 77, 78, 78, 79, 79, 139693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80, 80, 81, 81, 82, 82, 83, 83, 84, 84, 85, 85, 86, 86, 87, 87, 140693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 141693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 142693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 143693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 145693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 146693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 147693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 148693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223 149693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 150693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul}; 151693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 152693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 153693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 154693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 155693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/***** X Utility Functions *****/ 156693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 157693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 158693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 159693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 160693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * X/Mesa error reporting function: 161693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 162693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void error( const char *msg ) 163693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 164693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) 165693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf( stderr, "X/Mesa error: %s\n", msg ); 166693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 167693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 168693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 169693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 170693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return the host's byte order as LSBFirst or MSBFirst ala X. 171693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 172693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 173693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int host_byte_order( void ) 174693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 175693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i = 1; 176693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul char *cptr = (char *) &i; 177693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return (*cptr==1) ? LSBFirst : MSBFirst; 178693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 179693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 180693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 181693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 182693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 183693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Error handling. 184693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 185693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 186693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int mesaXErrorFlag = 0; 187693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 188693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int mesaHandleXError( XMesaDisplay *dpy, XErrorEvent *event ) 189693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 190693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) dpy; 191693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) event; 192693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mesaXErrorFlag = 1; 193693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 194693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 195693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 196693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 197693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 198693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 199693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Check if the X Shared Memory extension is available. 200693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: 0 = not available 201693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 1 = shared XImage support available 202693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 2 = shared Pixmap support available also 203693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 204693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 205693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int check_for_xshm( XMesaDisplay *display ) 206693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 207693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef USE_XSHM 208693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int major, minor, ignore; 209693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul Bool pixmaps; 210693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 211693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (XQueryExtension( display, "MIT-SHM", &ignore, &ignore, &ignore )) { 212693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (XShmQueryVersion( display, &major, &minor, &pixmaps )==True) { 213693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return (pixmaps==True) ? 2 : 1; 214693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 215693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 216693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 217693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 218693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 219693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 220693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 221693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 222693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 223693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Can't compile XSHM support */ 224693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 225693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 226693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 227693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 228693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 229693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 230693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 231693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return the width and height of the given drawable. 232693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 233693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void get_drawable_size( XMesaDisplay *dpy, XMesaDrawable d, 234693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned int *width, unsigned int *height) 235693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 236693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 237693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) dpy; 238693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *width = d->width; 239693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *height = d->height; 240693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 241693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul Window root; 242693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int x, y; 243693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned int bw, depth; 244693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 245693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _glthread_LOCK_MUTEX(_xmesa_lock); 246693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGetGeometry( dpy, d, &root, &x, &y, width, height, &bw, &depth ); 247693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _glthread_UNLOCK_MUTEX(_xmesa_lock); 248693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 249693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 250693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 251693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 252693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 253693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Apply gamma correction to an intensity value in [0..max]. Return the 254693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * new intensity value. 255693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 256693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLint gamma_adjust( GLfloat gamma, GLint value, GLint max ) 257693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 258693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (gamma == 1.0) { 259693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return value; 260693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 261693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 262693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double x = (double) value / (double) max; 263693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return (GLint) ((GLfloat) max * pow( x, 1.0F/gamma ) + 0.5F); 264693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 265693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 266693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 267693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 268693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 269693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 270693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return the true number of bits per pixel for XImages. 271693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * For example, if we request a 24-bit deep visual we may actually need/get 272693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 32bpp XImages. This function returns the appropriate bpp. 273693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: dpy - the X display 274693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visinfo - desribes the visual to be used for XImages 275693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: true number of bits per pixel for XImages 276693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 277693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#define GET_BITS_PER_PIXEL(xmv) bits_per_pixel(xmv) 278693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 279693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 280693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 281693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int bits_per_pixel( XMesaVisual xmv ) 282693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 283693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisualInfo visinfo = xmv->visinfo; 284693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul const int depth = visinfo->nplanes; 285693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i; 286693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i = 0; i < screenInfo.numPixmapFormats; i++) { 287693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (screenInfo.formats[i].depth == depth) 288693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return screenInfo.formats[i].bitsPerPixel; 289693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 290693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return depth; /* should never get here, but this should be safe */ 291693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 292693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 293693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 294693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 295693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int bits_per_pixel( XMesaVisual xmv ) 296693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 297693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDisplay *dpy = xmv->display; 298693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisualInfo visinfo = xmv->visinfo; 299693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaImage *img; 300693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int bitsPerPixel; 301693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Create a temporary XImage */ 302693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul img = XCreateImage( dpy, visinfo->visual, visinfo->depth, 303693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ZPixmap, 0, /*format, offset*/ 304693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (char*) MALLOC(8), /*data*/ 305693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1, 1, /*width, height*/ 306693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, /*bitmap_pad*/ 307693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0 /*bytes_per_line*/ 308693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ); 309693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(img); 310693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* grab the bits/pixel value */ 311693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bitsPerPixel = img->bits_per_pixel; 312693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* free the XImage */ 313693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE( img->data ); 314693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul img->data = NULL; 315693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( img ); 316693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return bitsPerPixel; 317693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 318693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 319693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 320693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 321693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 322693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 323693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Determine if a given X window ID is valid (window exists). 324693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Do this by calling XGetWindowAttributes() for the window and 325693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * checking if we catch an X error. 326693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: dpy - the display 327693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * win - the window to check for existance 328693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE - window exists 329693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE - window doesn't exist 330693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 331693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 332693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean WindowExistsFlag; 333693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 334693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int window_exists_err_handler( XMesaDisplay* dpy, XErrorEvent* xerr ) 335693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 336693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) dpy; 337693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xerr->error_code == BadWindow) { 338693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul WindowExistsFlag = GL_FALSE; 339693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 340693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 341693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 342693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 343693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean window_exists( XMesaDisplay *dpy, Window win ) 344693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 345693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XWindowAttributes wa; 346693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int (*old_handler)( XMesaDisplay*, XErrorEvent* ); 347693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul WindowExistsFlag = GL_TRUE; 348693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul old_handler = XSetErrorHandler(window_exists_err_handler); 349693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGetWindowAttributes( dpy, win, &wa ); /* dummy request */ 350693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSetErrorHandler(old_handler); 351693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return WindowExistsFlag; 352693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 353693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 354693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 355693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 356693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 357693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 358693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/***** Linked list of XMesaBuffers *****/ 359693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 360693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 361693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic XMesaBuffer XMesaBufferList = NULL; 362693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 363693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 364693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* Allocate a new XMesaBuffer, add to linked list */ 365693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic XMesaBuffer alloc_xmesa_buffer(void) 366693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 367693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b = (XMesaBuffer) CALLOC_STRUCT(xmesa_buffer); 368693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b) { 369693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->Next = XMesaBufferList; 370693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBufferList = b; 371693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 372693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 373693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 374693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 375693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 376693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 377693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Find an XMesaBuffer by matching X display and colormap but NOT matching 378693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the notThis buffer. 379693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 380693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic XMesaBuffer find_xmesa_buffer(XMesaDisplay *dpy, 381693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColormap cmap, 382693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer notThis) 383693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 384693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b; 385693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b=XMesaBufferList; b; b=b->Next) { 386693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->display==dpy && b->cmap==cmap && b!=notThis) { 387693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 388693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 389693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 390693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 391693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 392693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 393693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 394693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 395693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Free an XMesaBuffer, remove from linked list, perhaps free X colormap 396693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * entries. 397693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 398693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void free_xmesa_buffer(int client, XMesaBuffer buffer) 399693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 400693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer prev = NULL, b; 401693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) client; 402693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b=XMesaBufferList; b; b=b->Next) { 403693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b==buffer) { 404693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* unlink bufer from list */ 405693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (prev) 406693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prev->Next = buffer->Next; 407693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 408693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBufferList = buffer->Next; 409693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Check to free X colors */ 410693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (buffer->num_alloced>0) { 411693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* If no other buffer uses this X colormap then free the colors. */ 412693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!find_xmesa_buffer(buffer->display, buffer->cmap, buffer)) { 413693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 414693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void)FreeColors(buffer->cmap, client, 415693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->num_alloced, buffer->alloced_colors, 416693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0); 417693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 418693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XFreeColors(buffer->display, buffer->cmap, 419693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->alloced_colors, buffer->num_alloced, 0); 420693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 421693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 422693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 423693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(buffer); 424693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return; 425693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 426693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* continue search */ 427693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prev = b; 428693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 429693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* buffer not found in XMesaBufferList */ 430693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gl_problem(NULL,"free_xmesa_buffer() - buffer not found\n"); 431693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 432693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 433693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 434693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* Copy X color table stuff from one XMesaBuffer to another. */ 435693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void copy_colortable_info(XMesaBuffer dst, const XMesaBuffer src) 436693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 437693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->color_table, src->color_table, sizeof(src->color_table)); 438693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->pixel_to_r, src->pixel_to_r, sizeof(src->pixel_to_r)); 439693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->pixel_to_g, src->pixel_to_g, sizeof(src->pixel_to_g)); 440693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->pixel_to_b, src->pixel_to_b, sizeof(src->pixel_to_b)); 441693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul dst->num_alloced = src->num_alloced; 442693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->alloced_colors, src->alloced_colors, 443693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul sizeof(src->alloced_colors)); 444693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 445693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 446693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 447693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 448693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 449693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/***** Misc Private Functions *****/ 450693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 451693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 452693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 453693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 454693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return number of bits set in n. 455693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 456693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int bitcount( unsigned long n ) 457693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 458693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int bits; 459693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (bits=0; n>0; n=n>>1) { 460693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (n&1) { 461693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bits++; 462693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 463693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 464693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return bits; 465693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 466693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 467693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 468693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 469693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 470693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Allocate a shared memory XImage back buffer for the given XMesaBuffer. 471693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE if success, GL_FALSE if error 472693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 473693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 474693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean alloc_shm_back_buffer( XMesaBuffer b ) 475693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 476693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef USE_XSHM 477693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 478693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * We have to do a _lot_ of error checking here to be sure we can 479693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * really use the XSHM extension. It seems different servers trigger 480693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * errors at different points if the extension won't work. Therefore 481693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * we have to be very careful... 482693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 483693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GC gc; 484693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int (*old_handler)( XMesaDisplay *, XErrorEvent * ); 485693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 486693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = XShmCreateImage( b->xm_visual->display, 487693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual->visinfo->visual, 488693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual->visinfo->depth, 489693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ZPixmap, NULL, &b->shminfo, 490693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, b->height ); 491693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage == NULL) { 492693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: Shared memory error (XShmCreateImage), disabling."); 493693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 494693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 495693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 496693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 497693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shminfo.shmid = shmget( IPC_PRIVATE, b->backimage->bytes_per_line 498693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * b->backimage->height, IPC_CREAT|0777 ); 499693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shminfo.shmid < 0) { 500693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) 501693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul perror("alloc_back_buffer"); 502693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 503693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 504693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: Shared memory error (shmget), disabling."); 505693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 506693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 507693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 508693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 509693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shminfo.shmaddr = b->backimage->data 510693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul = (char*)shmat( b->shminfo.shmid, 0, 0 ); 511693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shminfo.shmaddr == (char *) -1) { 512693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) 513693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul perror("alloc_back_buffer"); 514693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 515693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmctl( b->shminfo.shmid, IPC_RMID, 0 ); 516693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 517693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: Shared memory error (shmat), disabling."); 518693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 519693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 520693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 521693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 522693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shminfo.readOnly = False; 523693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mesaXErrorFlag = 0; 524693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul old_handler = XSetErrorHandler( mesaHandleXError ); 525693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* This may trigger the X protocol error we're ready to catch: */ 526693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmAttach( b->xm_visual->display, &b->shminfo ); 527693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync( b->xm_visual->display, False ); 528693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 529693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (mesaXErrorFlag) { 530693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* we are on a remote display, this error is normal, don't print it */ 531693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XFlush( b->xm_visual->display ); 532693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mesaXErrorFlag = 0; 533693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 534693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmdt( b->shminfo.shmaddr ); 535693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmctl( b->shminfo.shmid, IPC_RMID, 0 ); 536693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 537693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 538693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) XSetErrorHandler( old_handler ); 539693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 540693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 541693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 542693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmctl( b->shminfo.shmid, IPC_RMID, 0 ); /* nobody else needs it */ 543693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 544693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Finally, try an XShmPutImage to be really sure the extension works */ 545693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gc = XCreateGC( b->xm_visual->display, b->frontbuffer, 0, NULL ); 546693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmPutImage( b->xm_visual->display, b->frontbuffer, gc, 547693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, 0, 0, 0, 0, 1, 1 /*one pixel*/, False ); 548693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync( b->xm_visual->display, False ); 549693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XFreeGC( b->xm_visual->display, gc ); 550693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) XSetErrorHandler( old_handler ); 551693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (mesaXErrorFlag) { 552693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XFlush( b->xm_visual->display ); 553693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mesaXErrorFlag = 0; 554693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 555693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmdt( b->shminfo.shmaddr ); 556693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmctl( b->shminfo.shmid, IPC_RMID, 0 ); 557693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 558693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 559693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 560693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 561693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 562693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 563693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int height = b->backimage->height; 564693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Needed by PIXELADDR1 macro */ 565693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_width1 = b->backimage->bytes_per_line; 566693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_origin1 = (GLubyte *) b->backimage->data 567693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + b->ximage_width1 * (height-1); 568693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Needed by PIXELADDR2 macro */ 569693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_width2 = b->backimage->bytes_per_line / 2; 570693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_origin2 = (GLushort *) b->backimage->data 571693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + b->ximage_width2 * (height-1); 572693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Needed by PIXELADDR3 macro */ 573693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_width3 = b->backimage->bytes_per_line; 574693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_origin3 = (GLubyte *) b->backimage->data 575693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + b->ximage_width3 * (height-1); 576693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Needed by PIXELADDR4 macro */ 577693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_width4 = b->backimage->width; 578693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_origin4 = (GLuint *) b->backimage->data 579693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + b->ximage_width4 * (height-1); 580693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 581693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 582693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 583693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 584693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Can't compile XSHM support */ 585693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 586693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 587693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 588693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 589693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 590693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 591693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 592693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 593693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup an off-screen pixmap or Ximage to use as the back buffer. 594693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: b - the X/Mesa buffer 595693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 596693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid xmesa_alloc_back_buffer( XMesaBuffer b ) 597693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 598693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state==BACK_XIMAGE) { 599693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Deallocate the old backimage, if any */ 600693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 601693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(USE_XSHM) && !defined(XFree86Server) 602693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm) { 603693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmDetach( b->xm_visual->display, &b->shminfo ); 604693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 605693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmdt( b->shminfo.shmaddr ); 606693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 607693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 608693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 609693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->backimage ); 610693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 611693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 612693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 613693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate new back buffer */ 614693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 615693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 616693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate a regular XImage for the back buffer. */ 617693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = XMesaCreateImage(b->xm_visual->BitsPerPixel, 618693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, b->height, NULL); 619693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 620693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm==0 621693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul || alloc_shm_back_buffer(b)==GL_FALSE 622693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ) { 623693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate a regular XImage for the back buffer. */ 624693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = XCreateImage( b->xm_visual->display, 625693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual->visinfo->visual, 626693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_VISUAL_DEPTH(b->xm_visual), 627693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ZPixmap, 0, /* format, offset */ 628693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul NULL, b->width, b->height, 629693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 8, 0 ); /* pad, bytes_per_line */ 630693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 631693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->backimage) { 632693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: XCreateImage failed."); 633693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 634693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage->data = (char *) MALLOC( b->backimage->height 635693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * b->backimage->bytes_per_line ); 636693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->backimage->data) { 637693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: MALLOC failed."); 638693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->backimage ); 639693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 640693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 641693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 642693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backpixmap = None; 643693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 644693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (b->db_state==BACK_PIXMAP) { 645693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPixmap old_pixmap = b->backpixmap; 646693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Free the old back pixmap */ 647693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backpixmap) { 648693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaFreePixmap( b->xm_visual->display, b->backpixmap ); 649693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 650693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate new back pixmap */ 651693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backpixmap = XMesaCreatePixmap( b->xm_visual->display, b->frontbuffer, 652693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, b->height, 653693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_VISUAL_DEPTH(b->xm_visual) ); 654693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 655693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* update other references to backpixmap */ 656693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->buffer==(XMesaDrawable)old_pixmap) { 657693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->buffer = (XMesaDrawable)b->backpixmap; 658693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 659693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 660693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 661693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 662693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 663693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 664693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 665693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * A replacement for XAllocColor. This function should never 666693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * fail to allocate a color. When XAllocColor fails, we return 667693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the nearest matching color. If we have to allocate many colors 668693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * this function isn't too efficient; the XQueryColors() could be 669693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * done just once. 670693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Written by Michael Pichler, Brian Paul, Mark Kilgard 671693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: dpy - X display 672693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * cmap - X colormap 673693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * cmapSize - size of colormap 674693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * In/Out: color - the XColor struct 675693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Output: exact - 1=exact color match, 0=closest match 676693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * alloced - 1=XAlloc worked, 0=XAlloc failed 677693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 678693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void 679693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulnoFaultXAllocColor( int client, 680693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDisplay *dpy, 681693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColormap cmap, 682693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int cmapSize, 683693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColor *color, 684693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int *exact, int *alloced ) 685693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 686693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 687693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul Pixel *ppixIn; 688693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xrgb *ctable; 689693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 690693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* we'll try to cache ctable for better remote display performance */ 691693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static Display *prevDisplay = NULL; 692693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static XMesaColormap prevCmap = 0; 693693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static int prevCmapSize = 0; 694693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static XMesaColor *ctable = NULL; 695693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 696693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColor subColor; 697693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i, bestmatch; 698693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double mindist; /* 3*2^16^2 exceeds long int precision. */ 699693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 700693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) client; 701693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 702693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* First try just using XAllocColor. */ 703693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 704693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (AllocColor(cmap, 705693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &color->red, &color->green, &color->blue, 706693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &color->pixel, 707693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client) == Success) { 708693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 709693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (XAllocColor(dpy, cmap, color)) { 710693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 711693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *exact = 1; 712693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *alloced = 1; 713693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return; 714693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 715693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 716693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Alloc failed, search for closest match */ 717693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 718693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Retrieve color table entries. */ 719693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* XXX alloca candidate. */ 720693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 721693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ppixIn = (Pixel *) MALLOC(cmapSize * sizeof(Pixel)); 722693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ctable = (xrgb *) MALLOC(cmapSize * sizeof(xrgb)); 723693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i = 0; i < cmapSize; i++) { 724693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ppixIn[i] = i; 725693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 726693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul QueryColors(cmap, cmapSize, ppixIn, ctable); 727693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 728693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (prevDisplay != dpy || prevCmap != cmap 729693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul || prevCmapSize != cmapSize || !ctable) { 730693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* free previously cached color table */ 731693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctable) 732693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(ctable); 733693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Get the color table from X */ 734693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ctable = (XMesaColor *) MALLOC(cmapSize * sizeof(XMesaColor)); 735693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(ctable); 736693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i = 0; i < cmapSize; i++) { 737693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ctable[i].pixel = i; 738693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 739693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XQueryColors(dpy, cmap, ctable, cmapSize); 740693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevDisplay = dpy; 741693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevCmap = cmap; 742693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevCmapSize = cmapSize; 743693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 744693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 745693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 746693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Find best match. */ 747693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bestmatch = -1; 748693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mindist = 0.0; 749693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i = 0; i < cmapSize; i++) { 750693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double dr = 0.30 * ((double) color->red - (double) ctable[i].red); 751693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double dg = 0.59 * ((double) color->green - (double) ctable[i].green); 752693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double db = 0.11 * ((double) color->blue - (double) ctable[i].blue); 753693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double dist = dr * dr + dg * dg + db * db; 754693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (bestmatch < 0 || dist < mindist) { 755693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bestmatch = i; 756693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mindist = dist; 757693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 758693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 759693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 760693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Return result. */ 761693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.red = ctable[bestmatch].red; 762693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.green = ctable[bestmatch].green; 763693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.blue = ctable[bestmatch].blue; 764693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Try to allocate the closest match color. This should only 765693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * fail if the cell is read/write. Otherwise, we're incrementing 766693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the cell's reference count. 767693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 768693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 769693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (AllocColor(cmap, 770693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &subColor.red, &subColor.green, &subColor.blue, 771693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &subColor.pixel, 772693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client) == Success) { 773693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 774693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (XAllocColor(dpy, cmap, &subColor)) { 775693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 776693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *alloced = 1; 777693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 778693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 779693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* do this to work around a problem reported by Frank Ortega */ 780693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.pixel = (unsigned long) bestmatch; 781693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.red = ctable[bestmatch].red; 782693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.green = ctable[bestmatch].green; 783693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.blue = ctable[bestmatch].blue; 784693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.flags = DoRed | DoGreen | DoBlue; 785693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *alloced = 0; 786693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 787693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 788693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(ppixIn); 789693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(ctable); 790693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 791693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* don't free table, save it for next time */ 792693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 793693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 794693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *color = subColor; 795693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *exact = 0; 796693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 797693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 798693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 799693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 800693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 801693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 802693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Do setup for PF_GRAYSCALE pixel format. 803693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Note that buffer may be NULL. 804693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 805693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean setup_grayscale( int client, XMesaVisual v, 806693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer buffer, XMesaColormap cmap ) 807693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 808693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (GET_VISUAL_DEPTH(v)<4 || GET_VISUAL_DEPTH(v)>16) { 809693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 810693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 811693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 812693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (buffer) { 813693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer prevBuffer; 814693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 815693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!cmap) { 816693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 817693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 818693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 819693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevBuffer = find_xmesa_buffer(v->display, cmap, buffer); 820693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (prevBuffer && 821693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (buffer->xm_visual->gl_visual->RGBAflag == 822693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevBuffer->xm_visual->gl_visual->RGBAflag)) { 823693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy colormap stuff from previous XMesaBuffer which uses same 824693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * X colormap. Do this to avoid time spent in noFaultXAllocColor. 825693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 826693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul copy_colortable_info(buffer, prevBuffer); 827693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 828693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 829693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate 256 shades of gray */ 830693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int gray; 831693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int colorsfailed = 0; 832693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (gray=0;gray<256;gray++) { 833693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint r = gamma_adjust( v->RedGamma, gray, 255 ); 834693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint g = gamma_adjust( v->GreenGamma, gray, 255 ); 835693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint b = gamma_adjust( v->BlueGamma, gray, 255 ); 836693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int exact, alloced; 837693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColor xcol; 838693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.red = (r << 8) | r; 839693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.green = (g << 8) | g; 840693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.blue = (b << 8) | b; 841693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul noFaultXAllocColor( client, v->display, 842693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul cmap, GET_COLORMAP_SIZE(v), 843693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &xcol, &exact, &alloced ); 844693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!exact) { 845693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul colorsfailed++; 846693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 847693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (alloced) { 848693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(buffer->num_alloced<256); 849693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->alloced_colors[buffer->num_alloced] = xcol.pixel; 850693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->num_alloced++; 851693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 852693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 853693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*OLD 854693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(gray < 576); 855693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[gray*3+0] = xcol.pixel; 856693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[gray*3+1] = xcol.pixel; 857693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[gray*3+2] = xcol.pixel; 858693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(xcol.pixel < 65536); 859693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_r[xcol.pixel] = gray * 30 / 100; 860693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_g[xcol.pixel] = gray * 59 / 100; 861693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_b[xcol.pixel] = gray * 11 / 100; 862693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 863693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[gray] = xcol.pixel; 864693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(xcol.pixel < 65536); 865693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_r[xcol.pixel] = gray; 866693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_g[xcol.pixel] = gray; 867693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_b[xcol.pixel] = gray; 868693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 869693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 870693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (colorsfailed && getenv("MESA_DEBUG")) { 871693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf( stderr, 872693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul "Note: %d out of 256 needed colors do not match exactly.\n", 873693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul colorsfailed ); 874693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 875693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 876693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 877693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 878693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = PF_GRAYSCALE; 879693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_GRAYSCALE; 880693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 881693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 882693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 883693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 884693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 885693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 886693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup RGB rendering for a window with a PseudoColor, StaticColor, 887693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * or 8-bit TrueColor visual visual. We try to allocate a palette of 225 888693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * colors (5 red, 9 green, 5 blue) and dither to approximate a 24-bit RGB 889693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * color. While this function was originally designed just for 8-bit 890693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visuals, it has also proven to work from 4-bit up to 16-bit visuals. 891693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Dithering code contributed by Bob Mercier. 892693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 893693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean setup_dithered_color( int client, XMesaVisual v, 894693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer buffer, XMesaColormap cmap ) 895693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 896693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (GET_VISUAL_DEPTH(v)<4 || GET_VISUAL_DEPTH(v)>16) { 897693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 898693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 899693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 900693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (buffer) { 901693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer prevBuffer; 902693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 903693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!cmap) { 904693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 905693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 906693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 907693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevBuffer = find_xmesa_buffer(v->display, cmap, buffer); 908693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (prevBuffer && 909693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (buffer->xm_visual->gl_visual->RGBAflag == 910693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevBuffer->xm_visual->gl_visual->RGBAflag)) { 911693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy colormap stuff from previous, matching XMesaBuffer. 912693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Do this to avoid time spent in noFaultXAllocColor. 913693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 914693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul copy_colortable_info(buffer, prevBuffer); 915693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 916693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 917693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate X colors and initialize color_table[], red_table[], etc */ 918693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int r, g, b, i; 919693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int colorsfailed = 0; 920693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (r = 0; r < _R; r++) { 921693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (g = 0; g < _G; g++) { 922693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b = 0; b < _B; b++) { 923693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColor xcol; 924693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int exact, alloced; 925693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.red =gamma_adjust(v->RedGamma, r*65535/(_R-1),65535); 926693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.green=gamma_adjust(v->GreenGamma, g*65535/(_G-1),65535); 927693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.blue =gamma_adjust(v->BlueGamma, b*65535/(_B-1),65535); 928693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul noFaultXAllocColor( client, v->display, 929693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul cmap, GET_COLORMAP_SIZE(v), 930693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &xcol, &exact, &alloced ); 931693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!exact) { 932693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul colorsfailed++; 933693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 934693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (alloced) { 935693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(buffer->num_alloced<256); 936693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->alloced_colors[buffer->num_alloced] = xcol.pixel; 937693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->num_alloced++; 938693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 939693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul i = _MIX( r, g, b ); 940693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(i < 576); 941693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[i] = xcol.pixel; 942693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(xcol.pixel < 65536); 943693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_r[xcol.pixel] = r * 255 / (_R-1); 944693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_g[xcol.pixel] = g * 255 / (_G-1); 945693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_b[xcol.pixel] = b * 255 / (_B-1); 946693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 947693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 948693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 949693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 950693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (colorsfailed && getenv("MESA_DEBUG")) { 951693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf( stderr, 952693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul "Note: %d out of %d needed colors do not match exactly.\n", 953693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul colorsfailed, _R*_G*_B ); 954693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 955693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 956693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 957693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 958693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = PF_DITHER; 959693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_LOOKUP; 960693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 961693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 962693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 963693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 964693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 965693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup for Hewlett Packard Color Recovery 8-bit TrueColor mode. 966693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * HPCR simulates 24-bit color fidelity with an 8-bit frame buffer. 967693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Special dithering tables have to be initialized. 968693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 969693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void setup_8bit_hpcr( XMesaVisual v ) 970693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 971693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* HP Color Recovery contributed by: Alex De Bruyn (ad@lms.be) 972693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * To work properly, the atom _HP_RGB_SMOOTH_MAP_LIST must be defined 973693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * on the root window AND the colormap obtainable by XGetRGBColormaps 974693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * for that atom must be set on the window. (see also tkInitWindow) 975693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * If that colormap is not set, the output will look stripy. 976693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 977693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 978693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Setup color tables with gamma correction */ 979693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i; 980693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double g; 981693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 982693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul g = 1.0 / v->RedGamma; 983693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<256; i++) { 984693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint red = (GLint) (255.0 * pow( hpcr_rgbTbl[0][i]/255.0, g ) + 0.5); 985693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_rgbTbl[0][i] = CLAMP( red, 16, 239 ); 986693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 987693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 988693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul g = 1.0 / v->GreenGamma; 989693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<256; i++) { 990693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint green = (GLint) (255.0 * pow( hpcr_rgbTbl[1][i]/255.0, g ) + 0.5); 991693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_rgbTbl[1][i] = CLAMP( green, 16, 239 ); 992693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 993693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 994693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul g = 1.0 / v->BlueGamma; 995693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<256; i++) { 996693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint blue = (GLint) (255.0 * pow( hpcr_rgbTbl[2][i]/255.0, g ) + 0.5); 997693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_rgbTbl[2][i] = CLAMP( blue, 32, 223 ); 998693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 999693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_HPCR; /* can't really disable dithering for now */ 1000693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = PF_HPCR; 1001693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1002693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* which method should I use to clear */ 1003693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* GL_FALSE: keep the ordinary method */ 1004693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* GL_TRUE : clear with dither pattern */ 1005693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_clear_flag = getenv("MESA_HPCR_CLEAR") ? GL_TRUE : GL_FALSE; 1006693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1007693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->hpcr_clear_flag) { 1008693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_clear_pixmap = XMesaCreatePixmap(v->display, 1009693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul DefaultRootWindow(v->display), 1010693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 16, 2, 8); 1011693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1012693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_clear_ximage = XGetImage(v->display, v->hpcr_clear_pixmap, 1013693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0, 16, 2, AllPlanes, ZPixmap); 1014693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1015693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1016693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1017693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1018693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1019693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1020693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup RGB rendering for a window with a True/DirectColor visual. 1021693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1022693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void setup_truecolor( XMesaVisual v, XMesaBuffer buffer, 1023693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaWindow window, XMesaColormap cmap ) 1024693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1025693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long rmask, gmask, bmask; 1026693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) buffer; 1027693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) window; 1028693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) cmap; 1029693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1030693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Compute red multiplier (mask) and bit shift */ 1031693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->rshift = 0; 1032693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul rmask = GET_REDMASK(v); 1033693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul while ((rmask & 1)==0) { 1034693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->rshift++; 1035693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul rmask = rmask >> 1; 1036693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1037693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1038693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Compute green multiplier (mask) and bit shift */ 1039693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->gshift = 0; 1040693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gmask = GET_GREENMASK(v); 1041693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul while ((gmask & 1)==0) { 1042693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->gshift++; 1043693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gmask = gmask >> 1; 1044693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1045693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1046693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Compute blue multiplier (mask) and bit shift */ 1047693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->bshift = 0; 1048693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bmask = GET_BLUEMASK(v); 1049693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul while ((bmask & 1)==0) { 1050693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->bshift++; 1051693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bmask = bmask >> 1; 1052693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1053693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1054693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1055693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Compute component-to-pixel lookup tables and dithering kernel 1056693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1057693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1058693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static GLubyte kernel[16] = { 1059693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0*16, 8*16, 2*16, 10*16, 1060693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 12*16, 4*16, 14*16, 6*16, 1061693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 3*16, 11*16, 1*16, 9*16, 1062693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 15*16, 7*16, 13*16, 5*16, 1063693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul }; 1064693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint rBits = bitcount(rmask); 1065693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint gBits = bitcount(gmask); 1066693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint bBits = bitcount(bmask); 1067693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint minBits; 1068693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLuint i; 1069693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1070693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* convert pixel components in [0,_mask] to RGB values in [0,255] */ 1071693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<=rmask; i++) 1072693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->PixelToR[i] = (unsigned char) ((i * 255) / rmask); 1073693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<=gmask; i++) 1074693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->PixelToG[i] = (unsigned char) ((i * 255) / gmask); 1075693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<=bmask; i++) 1076693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->PixelToB[i] = (unsigned char) ((i * 255) / bmask); 1077693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1078693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* convert RGB values from [0,255] to pixel components */ 1079693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1080693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0;i<256;i++) { 1081693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint r = gamma_adjust(v->RedGamma, i, 255); 1082693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint g = gamma_adjust(v->GreenGamma, i, 255); 1083693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint b = gamma_adjust(v->BlueGamma, i, 255); 1084693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->RtoPixel[i] = (r >> (8-rBits)) << v->rshift; 1085693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->GtoPixel[i] = (g >> (8-gBits)) << v->gshift; 1086693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->BtoPixel[i] = (b >> (8-bBits)) << v->bshift; 1087693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1088693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* overflow protection */ 1089693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=256;i<512;i++) { 1090693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->RtoPixel[i] = v->RtoPixel[255]; 1091693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->GtoPixel[i] = v->GtoPixel[255]; 1092693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->BtoPixel[i] = v->BtoPixel[255]; 1093693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1094693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1095693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* setup dithering kernel */ 1096693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul minBits = rBits; 1097693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (gBits < minBits) minBits = gBits; 1098693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (bBits < minBits) minBits = bBits; 1099693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0;i<16;i++) { 1100693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->Kernel[i] = kernel[i] >> minBits; 1101693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1102693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1103693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_TRUECOLOR; 1104693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = (GET_VISUAL_DEPTH(v)<24) ? PF_TRUEDITHER : PF_TRUECOLOR; 1105693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1106693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1107693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1108693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Now check for TrueColor visuals which we can optimize. 1109693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1110693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if ( GET_REDMASK(v) ==0x0000ff 1111693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x00ff00 1112693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0xff0000 1113693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_BYTE_ORDER(v) 1114693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->BitsPerPixel==32 1115693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && sizeof(GLuint)==4 1116693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { 1117693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* common 32 bpp config used on SGI, Sun */ 1118693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = v->dithered_pf = PF_8A8B8G8R; 1119693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1120693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (GET_REDMASK(v) ==0xff0000 1121693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x00ff00 1122693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0x0000ff 1123693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_BYTE_ORDER(v) 1124693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->BitsPerPixel==32 1125693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && sizeof(GLuint)==4 1126693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { 1127693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* common 32 bpp config used on Linux, HP, IBM */ 1128693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = v->dithered_pf = PF_8R8G8B; 1129693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1130693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (GET_REDMASK(v) ==0xff0000 1131693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x00ff00 1132693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0x0000ff 1133693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_BYTE_ORDER(v) 1134693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->BitsPerPixel==24 1135693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && sizeof(GLuint)==4 1136693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { 1137693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* common packed 24 bpp config used on Linux */ 1138693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = v->dithered_pf = PF_8R8G8B24; 1139693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1140693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (GET_REDMASK(v) ==0xf800 1141693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x07e0 1142693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0x001f 1143693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_BYTE_ORDER(v) 1144693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->BitsPerPixel==16 1145693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && sizeof(GLushort)==2 1146693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { 1147693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 5-6-5 color weight on common PC VGA boards */ 1148693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_5R6G5B; 1149693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = PF_DITHER_5R6G5B; 1150693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1151693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (GET_REDMASK(v) ==0xe0 1152693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x1c 1153693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0x03 1154693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_FOR_HPCR(v)) { 1155693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul setup_8bit_hpcr( v ); 1156693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1157693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1158693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1159693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1160693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1161693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1162693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup RGB rendering for a window with a monochrome visual. 1163693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1164693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void setup_monochrome( XMesaVisual v, XMesaBuffer b ) 1165693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1166693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) b; 1167693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = v->undithered_pf = PF_1BIT; 1168693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* if black=1 then we must flip pixel values */ 1169693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->bitFlip = (GET_BLACK_PIXEL(v) != 0); 1170693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1171693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1172693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1173693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1174693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1175693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * When a context is "made current" for the first time, we can finally 1176693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * finish initializing the context's visual and buffer information. 1177693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: v - the XMesaVisual to initialize 1178693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * b - the XMesaBuffer to initialize (may be NULL) 1179693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * rgb_flag - TRUE = RGBA mode, FALSE = color index mode 1180693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * window - the window/pixmap we're rendering into 1181693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * cmap - the colormap associated with the window/pixmap 1182693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE=success, GL_FALSE=failure 1183693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1184693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean initialize_visual_and_buffer( int client, 1185693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisual v, 1186693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b, 1187693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean rgb_flag, 1188693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDrawable window, 1189693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColormap cmap 1190693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ) 1191693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1192693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1193693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGCValues gcvalues; 1194693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1195693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1196693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b) { 1197693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(b->xm_visual == v); 1198693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1199693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1200693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Save true bits/pixel */ 1201693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->BitsPerPixel = GET_BITS_PER_PIXEL(v); 1202693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(v->BitsPerPixel > 0); 1203693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1204693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1205693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (rgb_flag==GL_FALSE) { 1206693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* COLOR-INDEXED WINDOW: 1207693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Even if the visual is TrueColor or DirectColor we treat it as 1208693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * being color indexed. This is weird but might be useful to someone. 1209693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1210693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = v->undithered_pf = PF_INDEX; 1211693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->index_bits = GET_VISUAL_DEPTH(v); 1212693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1213693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1214693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* RGB WINDOW: 1215693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * We support RGB rendering into almost any kind of visual. 1216693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1217693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int xclass; 1218693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xclass = GET_VISUAL_CLASS(v); 1219693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xclass==TrueColor || xclass==DirectColor) { 1220693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul setup_truecolor( v, b, (XMesaWindow)window, cmap ); 1221693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1222693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (xclass==StaticGray && GET_VISUAL_DEPTH(v)==1) { 1223693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul setup_monochrome( v, b ); 1224693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1225693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (xclass==GrayScale || xclass==StaticGray) { 1226693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!setup_grayscale( client, v, b, cmap )) { 1227693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 1228693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1229693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1230693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if ((xclass==PseudoColor || xclass==StaticColor) 1231693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_VISUAL_DEPTH(v)>=4 && GET_VISUAL_DEPTH(v)<=16) { 1232693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!setup_dithered_color( client, v, b, cmap )) { 1233693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 1234693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1235693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1236693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1237693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("XMesa: RGB mode rendering not supported in given visual."); 1238693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 1239693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1240693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->index_bits = 0; 1241693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1242693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_NO_DITHER")) { 1243693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = v->undithered_pf; 1244693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1245693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1246693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1247693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1248693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1249693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * If MESA_INFO env var is set print out some debugging info 1250693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * which can help Brian figure out what's going on when a user 1251693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * reports bugs. 1252693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1253693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_INFO")) { 1254693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa visual = %p\n", v); 1255693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa dithered pf = %u\n", v->dithered_pf); 1256693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa undithered pf = %u\n", v->undithered_pf); 1257693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa level = %d\n", v->level); 1258693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa depth = %d\n", GET_VISUAL_DEPTH(v)); 1259693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa bits per pixel = %d\n", v->BitsPerPixel); 1260693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1261693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1262693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b && window) { 1263693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Do window-specific initializations */ 1264693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1265693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Window dimensions */ 1266693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned int w, h; 1267693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul get_drawable_size( v->display, window, &w, &h ); 1268693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width = w; 1269693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->height = h; 1270693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1271693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->frontbuffer = window; 1272693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1273693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert( v->gl_visual ); 1274693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1275693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Setup for single/double buffering */ 1276693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->gl_visual->DBflag) { 1277693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Double buffered */ 1278693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1279693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = check_for_xshm( v->display ); 1280693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1281693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa_alloc_back_buffer( b ); 1282693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state==BACK_PIXMAP) { 1283693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->buffer = (XMesaDrawable)b->backpixmap; 1284693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1285693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1286693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->buffer = XIMAGE; 1287693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1288693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1289693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1290693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Single Buffered */ 1291693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->buffer = b->frontbuffer; 1292693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1293693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1294693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* X11 graphics contexts */ 1295693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1296693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->gc1 = CreateScratchGC(v->display, window->depth); 1297693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->gc2 = CreateScratchGC(v->display, window->depth); 1298693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1299693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->gc1 = XCreateGC( v->display, window, 0, NULL ); 1300693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->gc2 = XCreateGC( v->display, window, 0, NULL ); 1301693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1302693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetFunction( v->display, b->gc1, GXcopy ); 1303693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetFunction( v->display, b->gc2, GXcopy ); 1304693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1305693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1306693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Don't generate Graphics Expose/NoExpose events in swapbuffers(). 1307693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Patch contributed by Michael Pichler May 15, 1995. 1308693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1309693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1310693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc = CreateScratchGC(v->display, window->depth); 1311693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1312693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul CARD32 v[1]; 1313693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v[0] = FALSE; 1314693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul dixChangeGC(NullClient, b->cleargc, GCGraphicsExposures, v, NULL); 1315693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1316693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1317693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gcvalues.graphics_exposures = False; 1318693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc = XCreateGC( v->display, window, 1319693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GCGraphicsExposures, &gcvalues); 1320693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1321693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetFunction( v->display, b->cleargc, GXcopy ); 1322693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1323693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Set fill style and tile pixmap once for all for HPCR stuff 1324693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * (instead of doing it each time in clear_color_HPCR_pixmap()) 1325693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Initialize whole stuff 1326693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Patch contributed by Jacques Leroy March 8, 1998. 1327693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1328693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->hpcr_clear_flag && b->buffer!=XIMAGE) { 1329693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i; 1330693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<16; i++) 1331693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1332693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutPixel(v->hpcr_clear_ximage, i, 0, 0); 1333693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutPixel(v->hpcr_clear_ximage, i, 1, 0); 1334693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1335693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutImage(b->display, (XMesaDrawable)v->hpcr_clear_pixmap, 1336693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, v->hpcr_clear_ximage, 0, 0, 0, 0, 16, 2); 1337693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetFillStyle( v->display, b->cleargc, FillTiled); 1338693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetTile( v->display, b->cleargc, v->hpcr_clear_pixmap ); 1339693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1340693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1341693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Initialize the row buffer XImage for use in write_color_span() */ 1342693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1343693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->rowimage = XMesaCreateImage(GET_VISUAL_DEPTH(v), MAX_WIDTH, 1, 1344693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (char *)MALLOC(MAX_WIDTH*4)); 1345693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1346693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->rowimage = XCreateImage( v->display, 1347693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->visinfo->visual, 1348693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->visinfo->depth, 1349693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ZPixmap, 0, /*format, offset*/ 1350693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (char*) MALLOC(MAX_WIDTH*4), /*data*/ 1351693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MAX_WIDTH, 1, /*width, height*/ 1352693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, /*bitmap_pad*/ 1353693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0 /*bytes_per_line*/ ); 1354693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1355693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1356693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1357693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 1358693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1359693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1360693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1361693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1362693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1363693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Convert an RGBA color to a pixel value. 1364693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1365693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulunsigned long 1366693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulxmesa_color_to_pixel( XMesaContext xmesa, GLubyte r, GLubyte g, GLubyte b, GLubyte a, 1367693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLuint pixelFormat) 1368693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1369693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul switch (pixelFormat) { 1370693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_INDEX: 1371693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 1372693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_TRUECOLOR: 1373693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1374693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long p; 1375693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PACK_TRUECOLOR( p, r, g, b ); 1376693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return p; 1377693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1378693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8A8B8G8R: 1379693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_8A8B8G8R( r, g, b, a ); 1380693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8R8G8B: 1381693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* fall through */ 1382693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8R8G8B24: 1383693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_8R8G8B( r, g, b ); 1384693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_5R6G5B: 1385693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_5R6G5B( r, g, b ); 1386693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_DITHER: 1387693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1388693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul DITHER_SETUP; 1389693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return DITHER( 1, 0, r, g, b ); 1390693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1391693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_1BIT: 1392693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 382 = (3*255)/2 */ 1393693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return ((r+g+b) > 382) ^ xmesa->xm_visual->bitFlip; 1394693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_HPCR: 1395693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return DITHER_HPCR(1, 1, r, g, b); 1396693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_LOOKUP: 1397693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1398693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul LOOKUP_SETUP; 1399693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return LOOKUP( r, g, b ); 1400693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1401693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_GRAYSCALE: 1402693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GRAY_RGB( r, g, b ); 1403693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_TRUEDITHER: 1404693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* fall through */ 1405693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_DITHER_5R6G5B: 1406693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1407693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long p; 1408693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PACK_TRUEDITHER(p, 1, 0, r, g, b); 1409693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return p; 1410693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1411693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul default: 1412693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gl_problem(NULL, "Bad pixel format in xmesa_color_to_pixel"); 1413693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1414693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 1415693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1416693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1417693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1418693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 1419693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/***** Public Functions *****/ 1420693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 1421693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1422693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1423693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1424693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Create a new X/Mesa visual. 1425693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: display - X11 display 1426693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visinfo - an XVisualInfo pointer 1427693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * rgb_flag - GL_TRUE = RGB mode, 1428693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE = color index mode 1429693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * alpha_flag - alpha buffer requested? 1430693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * db_flag - GL_TRUE = double-buffered, 1431693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE = single buffered 1432693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * stereo_flag - stereo visual? 1433693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * ximage_flag - GL_TRUE = use an XImage for back buffer, 1434693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE = use an off-screen pixmap for back buffer 1435693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * depth_size - requested bits/depth values, or zero 1436693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * stencil_size - requested bits/stencil values, or zero 1437693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * accum_red_size - requested bits/red accum values, or zero 1438693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * accum_green_size - requested bits/green accum values, or zero 1439693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * accum_blue_size - requested bits/blue accum values, or zero 1440693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * accum_alpha_size - requested bits/alpha accum values, or zero 1441693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * num_samples - number of samples/pixel if multisampling, or zero 1442693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * level - visual level, usually 0 1443693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visualCaveat - ala the GLX extension, usually GLX_NONE_EXT 1444693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return; a new XMesaVisual or 0 if error. 1445693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1446693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaVisual XMesaCreateVisual( XMesaDisplay *display, 1447693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisualInfo visinfo, 1448693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean rgb_flag, 1449693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean alpha_flag, 1450693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean db_flag, 1451693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean stereo_flag, 1452693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean ximage_flag, 1453693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint depth_size, 1454693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint stencil_size, 1455693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint accum_red_size, 1456693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint accum_green_size, 1457693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint accum_blue_size, 1458693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint accum_alpha_size, 1459693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint num_samples, 1460693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint level, 1461693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint visualCaveat ) 1462693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1463693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul char *gamma; 1464693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisual v; 1465693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint red_bits, green_bits, blue_bits, alpha_bits; 1466693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1467693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* For debugging only */ 1468693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_XSYNC")) { 1469693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* This makes debugging X easier. 1470693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * In your debugger, set a breakpoint on _XError to stop when an 1471693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * X protocol error is generated. 1472693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1473693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1474693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* NOT_NEEDED */ 1475693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1476693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSynchronize( display, 1 ); 1477693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1478693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1479693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1480693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v = (XMesaVisual) CALLOC_STRUCT(xmesa_visual); 1481693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!v) { 1482693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1483693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1484693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1485693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1486693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * In the X server, NULL is passed in for the display. It will have 1487693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * to be set before using this visual. See XMesaSetVisualDisplay() 1488693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * below. 1489693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1490693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->display = display; 1491693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1492693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Save a copy of the XVisualInfo struct because the user may XFREE() 1493693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the struct but we may need some of the information contained in it 1494693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * at a later time. 1495693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1496693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1497693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->visinfo = visinfo; 1498693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1499693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->visinfo = (XVisualInfo *) MALLOC(sizeof(*visinfo)); 1500693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if(!v->visinfo) { 1501693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(v); 1502693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1503693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1504693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(v->visinfo, visinfo, sizeof(*visinfo)); 1505693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1506693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Save a copy of the pointer now so we can find this visual again 1507693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * if we need to search for it in find_glx_visual(). 1508693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1509693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->vishandle = visinfo; 1510693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1511693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1512693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1513693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Initialize the depth of the screen */ 1514693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1515693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PixmapFormatRec *format; 1516693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1517693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (format = screenInfo.formats; 1518693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul format->depth != display->rootDepth; 1519693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul format++) 1520693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ; 1521693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->screen_depth = format->bitsPerPixel; 1522693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1523693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1524693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1525693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* check for MESA_GAMMA environment variable */ 1526693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gamma = getenv("MESA_GAMMA"); 1527693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (gamma) { 1528693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->RedGamma = v->GreenGamma = v->BlueGamma = 0.0; 1529693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul sscanf( gamma, "%f %f %f", &v->RedGamma, &v->GreenGamma, &v->BlueGamma ); 1530693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->RedGamma<=0.0) v->RedGamma = 1.0; 1531693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->GreenGamma<=0.0) v->GreenGamma = v->RedGamma; 1532693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->BlueGamma<=0.0) v->BlueGamma = v->RedGamma; 1533693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1534693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1535693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->RedGamma = v->GreenGamma = v->BlueGamma = 1.0; 1536693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1537693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1538693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->ximage_flag = ximage_flag; 1539693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->level = level; 1540693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->VisualCaveat = visualCaveat; 1541693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1542693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) initialize_visual_and_buffer( 0, v, NULL, rgb_flag, 0, 0 ); 1543693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1544693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1545693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int xclass; 1546693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xclass = GET_VISUAL_CLASS(v); 1547693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xclass==TrueColor || xclass==DirectColor) { 1548693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul red_bits = bitcount(GET_REDMASK(v)); 1549693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul green_bits = bitcount(GET_GREENMASK(v)); 1550693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul blue_bits = bitcount(GET_BLUEMASK(v)); 1551693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul alpha_bits = 0; 1552693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1553693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1554693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* this is an approximation */ 1555693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int depth; 1556693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth = GET_VISUAL_DEPTH(v); 1557693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul red_bits = depth / 3; 1558693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth -= red_bits; 1559693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul green_bits = depth / 2; 1560693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth -= green_bits; 1561693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul blue_bits = depth; 1562693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul alpha_bits = 0; 1563693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert( red_bits + green_bits + blue_bits == GET_VISUAL_DEPTH(v) ); 1564693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1565693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1566693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1567693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (alpha_flag && alpha_bits == 0) 1568693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul alpha_bits = 8; 1569693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1570693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->gl_visual = _mesa_create_visual( rgb_flag, db_flag, stereo_flag, 1571693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul red_bits, green_bits, 1572693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul blue_bits, alpha_bits, 1573693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->index_bits, 1574693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth_size, 1575693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul stencil_size, 1576693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul accum_red_size, accum_green_size, 1577693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul accum_blue_size, accum_alpha_size, 1578693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0 ); 1579693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!v->gl_visual) { 1580693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1581693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(v->visinfo); 1582693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1583693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(v); 1584693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1585693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1586693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1587693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return v; 1588693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1589693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1590693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1591693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaSetVisualDisplay( XMesaDisplay *dpy, XMesaVisual v ) 1592693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1593693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->display = dpy; 1594693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1595693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1596693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1597693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaDestroyVisual( XMesaVisual v ) 1598693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1599693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _mesa_destroy_visual( v->gl_visual ); 1600693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1601693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(v->visinfo); 1602693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1603693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(v); 1604693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1605693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1606693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1607693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1608693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1609693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Create a new XMesaContext. 1610693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: v - XMesaVisual 1611693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * share_list - another XMesaContext with which to share display 1612693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * lists or NULL if no sharing is wanted. 1613693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: an XMesaContext or NULL if error. 1614693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1615693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list ) 1616693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1617693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext c; 1618693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean direct = GL_TRUE; /* XXXX */ 1619693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* NOT_DONE: should this be GL_FALSE??? */ 1620693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static GLboolean firstTime = GL_TRUE; 1621693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1622693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (firstTime) { 1623693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _glthread_INIT_MUTEX(_xmesa_lock); 1624693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul firstTime = GL_FALSE; 1625693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1626693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1627693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c = (XMesaContext) CALLOC_STRUCT(xmesa_context); 1628693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!c) { 1629693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1630693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1631693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1632b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul c->gl_ctx = _mesa_create_context( v->gl_visual, 1633693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul share_list ? share_list->gl_ctx : (GLcontext *) NULL, 1634693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void *) c, direct ); 1635693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!c->gl_ctx) { 1636693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(c); 1637693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1638693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1639693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1640693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gl_extensions_enable(c->gl_ctx, "GL_HP_occlusion_test"); 1641693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gl_extensions_enable(c->gl_ctx, "GL_ARB_texture_cube_map"); 1642693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gl_extensions_enable(c->gl_ctx, "GL_EXT_texture_env_combine"); 1643693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1644693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (CHECK_BYTE_ORDER(v)) { 1645693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->swapbytes = GL_FALSE; 1646693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1647693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1648693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->swapbytes = GL_TRUE; 1649693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1650693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1651693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_visual = v; 1652693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer = NULL; /* set later by XMesaMakeCurrent */ 1653693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->display = v->display; 1654693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->pixelformat = v->dithered_pf; /* Dithering is enabled by default */ 1655693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1656693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->gl_ctx->Driver.UpdateState = xmesa_update_state; 1657693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1658693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) 1659693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->driContextPriv = driContextPriv; 1660693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1661693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1662693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Run the config file */ 1663b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_context_initialize( c->gl_ctx ); 1664693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1665693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return c; 1666693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1667693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1668693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1669693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1670693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1671693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaDestroyContext( XMesaContext c ) 1672693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1673693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 1674693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_buffer && c->xm_buffer->FXctx) 1675693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxMesaDestroyContext(c->xm_buffer->FXctx); 1676693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1677693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->gl_ctx) 1678b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_destroy_context( c->gl_ctx ); 1679693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1680693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Disassociate old buffer with this context */ 1681693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_buffer) 1682693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer->xm_context = NULL; 1683693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1684693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Destroy any buffers which are using this context. If we don't 1685693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * we may have dangling references. Hmm, maybe we should just 1686693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * set the buffer's context pointer to NULL instead of deleting it? 1687693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Let's see if we get any bug reports... 1688693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * This contributed by Doug Rabson <dfr@calcaphon.com> 1689693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1690693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1691693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b, next; 1692693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b = XMesaBufferList; b; b = next) { 1693693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul next = b->Next; 1694693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->pixmap_flag) { 1695693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1696693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync(b->display, False); 1697693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1698693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_context == c) { 1699693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* found a context created for this context */ 1700693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyBuffer( b ); 1701693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1702693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1703693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1704693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1705693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1706693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE( c ); 1707693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1708693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1709693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1710693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1711693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1712693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * XXX this isn't a public function! It's a hack for the 3Dfx driver. 1713693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Create a new XMesaBuffer from an X window. 1714693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: v - the XMesaVisual 1715693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * w - the window 1716693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * c - the context 1717693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: new XMesaBuffer or NULL if error 1718693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1719693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaCreateWindowBuffer2( XMesaVisual v, XMesaWindow w, 1720693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext c ) 1721693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1722693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1723693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XWindowAttributes attr; 1724693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1725693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 1726693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul char *fxEnvVar; 1727693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1728693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int client = 0; 1729693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1730693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b = alloc_xmesa_buffer(); 1731693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b) { 1732693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1733693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1734693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1735693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) c; 1736693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1737693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1738693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client = CLIENT_ID(((XMesaDrawable)w)->id); 1739693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1740693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1741693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(v); 1742693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1743693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1744693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (GET_VISUAL_DEPTH(v) != ((XMesaDrawable)w)->depth) { 1745693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1746693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGetWindowAttributes( v->display, w, &attr ); 1747693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1748693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (GET_VISUAL_DEPTH(v) != attr.depth) { 1749693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1750693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) { 1751693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "XMesaCreateWindowBuffer: depth mismatch between visual and window!\n"); 1752693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1753693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1754693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1755693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1756693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_context = NULL; /* Associate no context with this buffer */ 1757693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1758693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual = v; 1759693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->pixmap_flag = GL_FALSE; 1760693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->display = v->display; 1761693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1762693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cmap = (ColormapPtr)LookupIDByType(wColormap(w), RT_COLORMAP); 1763693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1764693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (attr.colormap) { 1765693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cmap = attr.colormap; 1766693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1767693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1768693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) { 1769693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "Window %u has no colormap!\n", (unsigned int) w); 1770693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1771693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* this is weird, a window w/out a colormap!? */ 1772693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* OK, let's just allocate a new one and hope for the best */ 1773693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cmap = XCreateColormap(v->display, w, attr.visual, AllocNone); 1774693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1775693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1776693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1777693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* determine back buffer implementation */ 1778693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->gl_visual->DBflag) { 1779693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->ximage_flag) { 1780693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = BACK_XIMAGE; 1781693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1782693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1783693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = BACK_PIXMAP; 1784693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1785693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1786693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1787693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = 0; 1788693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1789693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1790b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul b->gl_buffer = _mesa_create_framebuffer( v->gl_visual, 1791b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->DepthBits > 0, 1792b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->StencilBits > 0, 1793b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->AccumRedBits > 0, 1794b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->AlphaBits > 0 ); 1795693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->gl_buffer) { 1796693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul free_xmesa_buffer(client, b); 1797693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1798693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1799693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1800693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!initialize_visual_and_buffer( client, v, b, v->gl_visual->RGBAflag, 1801693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (XMesaDrawable)w, b->cmap )) { 1802b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_destroy_framebuffer( b->gl_buffer ); 1803693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul free_xmesa_buffer(client, b); 1804693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1805693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1806693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1807693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 1808693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxEnvVar = getenv("MESA_GLX_FX"); 1809693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (fxEnvVar) { 1810693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (fxEnvVar[0]!='d') { 1811693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int attribs[100]; 1812693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int numAttribs = 0; 1813693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int hw; 1814693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->gl_visual->DepthBits > 0) { 1815693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = FXMESA_DEPTH_SIZE; 1816693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = 1; 1817693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1818693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->gl_visual->DBflag) { 1819693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = FXMESA_DOUBLEBUFFER; 1820693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1821693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->gl_visual->AccumRedBits > 0) { 1822693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = FXMESA_ACCUM_SIZE; 1823693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = v->gl_visual->AccumRedBits; 1824693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1825693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->gl_visual->StencilBits > 0) { 1826693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = FXMESA_STENCIL_SIZE; 1827693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = v->gl_visual->StencilBits; 1828693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1829693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->gl_visual->AlphaBits > 0) { 1830693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = FXMESA_ALPHA_SIZE; 1831693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = 1; 1832693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1833693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->gl_ctx) { 1834693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#define FXMESA_SHARE_CONTEXT 990099 /* keep in sync with fxapi.c! */ 1835693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = FXMESA_SHARE_CONTEXT; 1836693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = (int) c->gl_ctx; 1837693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1838693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul attribs[numAttribs++] = FXMESA_NONE; 1839693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1840693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if ((hw = fxQueryHardware())==GR_SSTTYPE_VOODOO) { 1841693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->FXctx = fxMesaCreateBestContext(0, b->width, b->height, attribs); 1842693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if ((v->undithered_pf!=PF_INDEX) && (b->backimage)) { 1843693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->FXisHackUsable = b->FXctx ? GL_TRUE : GL_FALSE; 1844693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (fxEnvVar[0]=='w' || fxEnvVar[0]=='W') 1845693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->FXwindowHack = b->FXctx ? GL_TRUE : GL_FALSE; 1846693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 1847693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->FXwindowHack = GL_FALSE; 1848693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1849693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1850693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1851693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (fxEnvVar[0]=='w' || fxEnvVar[0]=='W') 1852693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->FXctx = fxMesaCreateContext(w, GR_RESOLUTION_NONE, 1853693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GR_REFRESH_75Hz, attribs); 1854693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 1855693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->FXctx = fxMesaCreateBestContext(0, b->width, b->height, attribs); 1856693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->FXisHackUsable = GL_FALSE; 1857693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->FXwindowHack = GL_FALSE; 1858693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1859693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1860693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, 1861693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul "voodoo %d, wid %d height %d hack: usable %d active %d\n", 1862693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul hw, b->width, b->height, b->FXisHackUsable, b->FXwindowHack); 1863693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1864693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1865693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1866693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1867693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr,"WARNING: This Mesa Library includes the Glide driver but\n"); 1868693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr," you have not defined the MESA_GLX_FX env. var.\n"); 1869693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr," (check the README.3DFX file for more information).\n\n"); 1870693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr," you can disable this message with a 'export MESA_GLX_FX=disable'.\n"); 1871693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1872693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1873693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1874693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) 1875693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->driDrawPriv = driDrawPriv; 1876693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1877693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1878693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 1879693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1880693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1881693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1882693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaCreateWindowBuffer( XMesaVisual v, XMesaWindow w ) 1883693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1884693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return XMesaCreateWindowBuffer2( v, w, NULL ); 1885693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1886693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1887693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1888693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1889693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Create a new XMesaBuffer from an X pixmap. 1890693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: v - the XMesaVisual 1891693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * p - the pixmap 1892693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * cmap - the colormap, may be 0 if using a TrueColor or DirectColor 1893693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visual for the pixmap 1894693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: new XMesaBuffer or NULL if error 1895693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1896693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaCreatePixmapBuffer( XMesaVisual v, 1897693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPixmap p, XMesaColormap cmap ) 1898693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1899693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int client = 0; 1900693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b = alloc_xmesa_buffer(); 1901693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b) { 1902693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1903693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1904693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1905693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1906693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1907693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client = CLIENT_ID(((XMesaDrawable)p)->id); 1908693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1909693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1910693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(v); 1911693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1912693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_context = NULL; /* Associate no context with this buffer */ 1913693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1914693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual = v; 1915693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->pixmap_flag = GL_TRUE; 1916693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->display = v->display; 1917693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cmap = cmap; 1918693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1919693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* determine back buffer implementation */ 1920693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->gl_visual->DBflag) { 1921693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->ximage_flag) { 1922693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = BACK_XIMAGE; 1923693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1924693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1925693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = BACK_PIXMAP; 1926693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1927693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1928693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1929693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = 0; 1930693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1931693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1932b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul b->gl_buffer = _mesa_create_framebuffer( v->gl_visual, 1933b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->DepthBits > 0, 1934b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->StencilBits > 0, 1935b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->AccumRedBits + 1936b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->AccumGreenBits + 1937b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->AccumBlueBits > 0, 1938b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul v->gl_visual->AlphaBits > 0 ); 1939693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->gl_buffer) { 1940693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul free_xmesa_buffer(client, b); 1941693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1942693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1943693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1944693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!initialize_visual_and_buffer(client, v, b, v->gl_visual->RGBAflag, 1945693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (XMesaDrawable)p, cmap)) { 1946b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_destroy_framebuffer( b->gl_buffer ); 1947693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul free_xmesa_buffer(client, b); 1948693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1949693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1950693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1951693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) 1952693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->driDrawPriv = driDrawPriv; 1953693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1954693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1955693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 1956693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1957693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1958693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1959693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1960693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1961693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Deallocate an XMesaBuffer structure and all related info. 1962693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1963693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaDestroyBuffer( XMesaBuffer b ) 1964693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1965693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int client = 0; 1966693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1967693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1968693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->frontbuffer) 1969693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client = CLIENT_ID(b->frontbuffer->id); 1970693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1971693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1972693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->gc1) XMesaFreeGC( b->xm_visual->display, b->gc1 ); 1973693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->gc2) XMesaFreeGC( b->xm_visual->display, b->gc2 ); 1974693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->cleargc) XMesaFreeGC( b->xm_visual->display, b->cleargc ); 1975693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1976693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 1977693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(USE_XSHM) && !defined(XFree86Server) 1978693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm) { 1979693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmDetach( b->xm_visual->display, &b->shminfo ); 1980693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 1981693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmdt( b->shminfo.shmaddr ); 1982693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1983693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 1984693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1985693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->backimage ); 1986693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1987693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backpixmap) { 1988693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaFreePixmap( b->xm_visual->display, b->backpixmap ); 1989693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_visual->hpcr_clear_flag) { 1990693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaFreePixmap( b->xm_visual->display, 1991693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual->hpcr_clear_pixmap ); 1992693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->xm_visual->hpcr_clear_ximage ); 1993693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1994693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1995693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->rowimage) { 1996693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE( b->rowimage->data ); 1997693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->rowimage->data = NULL; 1998693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->rowimage ); 1999693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2000693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2001693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_context) 2002693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_context->xm_buffer = NULL; 2003693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2004b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_destroy_framebuffer( b->gl_buffer ); 2005693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul free_xmesa_buffer(client, b); 2006693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2007693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2008693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2009693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2010693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2011693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Bind buffer b to context c and make c the current rendering context. 2012693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2013693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaMakeCurrent( XMesaContext c, XMesaBuffer b ) 2014693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2015693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return XMesaMakeCurrent2( c, b, b ); 2016693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2017693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2018693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2019693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2020693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Bind buffer b to context c and make c the current rendering context. 2021693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2022693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaMakeCurrent2( XMesaContext c, XMesaBuffer drawBuffer, 2023693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer readBuffer ) 2024693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2025693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c) { 2026693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!drawBuffer || !readBuffer) 2027693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; /* must specify buffers! */ 2028693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2029693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2030693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (drawBuffer->FXctx) { 2031693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxMesaMakeCurrent(drawBuffer->FXctx); 2032693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2033693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Disassociate old buffer from this context */ 2034693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_buffer) 2035693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer->xm_context = NULL; 2036693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2037693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Associate the context with this buffer */ 2038693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul drawBuffer->xm_context = c; 2039693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2040693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer = drawBuffer; 2041693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_read_buffer = readBuffer; 2042693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->use_read_buffer = (drawBuffer != readBuffer); 2043693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2044693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2045693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2046693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2047b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul if (c->gl_ctx == _mesa_get_current_context() 2048693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && c->xm_buffer == drawBuffer 2049693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && c->xm_read_buffer == readBuffer 2050693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && c->xm_buffer->wasCurrent) { 2051693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* same context and buffer, do nothing */ 2052693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2053693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2054693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2055693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Disassociate old buffer with this context */ 2056693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_buffer) 2057693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer->xm_context = NULL; 2058693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul drawBuffer->xm_context = c; /* Associate the context with this buffer */ 2059693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2060693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer = drawBuffer; 2061693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_read_buffer = readBuffer; 2062693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->use_read_buffer = (drawBuffer != readBuffer); 2063693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2064b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_make_current2(c->gl_ctx, drawBuffer->gl_buffer, readBuffer->gl_buffer); 2065693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2066693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->gl_ctx->Viewport.Width == 0) { 2067693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* initialize viewport to window size */ 2068693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _mesa_Viewport( 0, 0, drawBuffer->width, drawBuffer->height ); 2069693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->gl_ctx->Scissor.Width = drawBuffer->width; 2070693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->gl_ctx->Scissor.Height = drawBuffer->height; 2071693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2072693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2073693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_visual->gl_visual->RGBAflag) { 2074693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 2075693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Must recompute and set these pixel values because colormap 2076693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * can be different for different windows. 2077693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2078693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->pixel = xmesa_color_to_pixel( c, c->red, c->green, 2079693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->blue, c->alpha, c->pixelformat ); 2080693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetForeground( c->display, c->xm_buffer->gc1, c->pixel ); 2081693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearpixel = xmesa_color_to_pixel( c, 2082693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearcolor[0], 2083693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearcolor[1], 2084693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearcolor[2], 2085693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearcolor[3], 2086693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_visual->undithered_pf); 2087693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetForeground(c->display, c->xm_buffer->cleargc, c->clearpixel); 2088693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2089693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2090693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Solution to Stephane Rehel's problem with glXReleaseBuffersMESA(): */ 2091693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer->wasCurrent = GL_TRUE; 2092693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2093693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2094693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Detach */ 2095b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_make_current2( NULL, NULL, NULL ); 2096693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2097693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2098693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2099693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2100693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2101693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2102693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Unbind the context c from its buffer. 2103693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2104693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaUnbindContext( XMesaContext c ) 2105693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2106693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* A no-op for XFree86 integration purposes */ 2107693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2108693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2109693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2110693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2111693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaContext XMesaGetCurrentContext( void ) 2112693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2113693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2114693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctx) { 2115693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; 2116693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return xmesa; 2117693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2118693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2119693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2120693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2121693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2122693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2123693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2124693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaGetCurrentBuffer( void ) 2125693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2126693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2127693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctx) { 2128693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; 2129693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return xmesa->xm_buffer; 2130693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2131693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2132693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2133693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2134693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2135693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2136693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2137693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* New in Mesa 3.1 */ 2138693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaGetCurrentReadBuffer( void ) 2139693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2140693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2141693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctx) { 2142693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; 2143693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return xmesa->xm_buffer; 2144693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2145693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2146693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2147693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2148693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2149693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2150693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2151693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaForceCurrent(XMesaContext c) 2152693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2153693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c) { 2154b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul if (c->gl_ctx != _mesa_get_current_context()) { 2155b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_make_current(c->gl_ctx, c->xm_buffer->gl_buffer); 2156693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2157693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2158693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2159b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_make_current(NULL, NULL); 2160693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2161693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2162693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2163693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2164693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2165693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaLoseCurrent(XMesaContext c) 2166693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2167693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) c; 2168b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_make_current(NULL, NULL); 2169693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2170693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2171693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2172693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2173693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2174693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Switch 3Dfx support hack between window and full-screen mode. 2175693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2176693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaSetFXmode( GLint mode ) 2177693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2178693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2179693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul const char *fx = getenv("MESA_GLX_FX"); 2180693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (fx && fx[0] != 'd') { 2181693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2182693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GrHwConfiguration hw; 2183693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!FX_grSstQueryHardware(&hw)) { 2184693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*fprintf(stderr, "!grSstQueryHardware\n");*/ 2185693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2186693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2187693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (hw.num_sst < 1) { 2188693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*fprintf(stderr, "hw.num_sst < 1\n");*/ 2189693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2190693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2191693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctx) { 2192693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; 2193693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (mode == XMESA_FX_WINDOW) { 2194693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xmesa->xm_buffer->FXisHackUsable) { 2195693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FX_grSstControl(GR_CONTROL_DEACTIVATE); 2196693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa->xm_buffer->FXwindowHack = GL_TRUE; 2197693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2198693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2199693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2200693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (mode == XMESA_FX_FULLSCREEN) { 2201693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FX_grSstControl(GR_CONTROL_ACTIVATE); 2202693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa->xm_buffer->FXwindowHack = GL_FALSE; 2203693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2204693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2205693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2206693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Error: Bad mode value */ 2207693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2208693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2209693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2210693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*fprintf(stderr, "fallthrough\n");*/ 2211693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2212693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) mode; 2213693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2214693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2215693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2216693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2217693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2218693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2219693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2220693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2221693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Read image from VooDoo frame buffer into X/Mesa's back XImage. 2222693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2223693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void FXgetImage( XMesaBuffer b ) 2224693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2225693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static unsigned short pixbuf[MAX_WIDTH]; 2226693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int x, y; 2227693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaWindow root; 2228693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned int bw, depth, width, height; 2229693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) b->xm_context->gl_ctx->DriverCtx; 2230693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2231693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(xmesa->xm_buffer->FXctx); 2232693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2233693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 2234693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x = b->frontbuffer->x; 2235693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul y = b->frontbuffer->y; 2236693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul width = b->frontbuffer->width; 2237693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul height = b->frontbuffer->height; 2238693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth = b->frontbuffer->depth; 2239693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2240693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGetGeometry( xmesa->xm_visual->display, b->frontbuffer, 2241693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &root, &x, &y, &width, &height, &bw, &depth); 2242693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2243693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->width != width || b->height != height) { 2244693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width = MIN2((int)width, xmesa->xm_buffer->FXctx->width); 2245693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->height = MIN2((int)height, xmesa->xm_buffer->FXctx->height); 2246693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->width & 1) 2247693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width--; /* prevent odd width */ 2248693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa_alloc_back_buffer( b ); 2249693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2250693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2251693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbWriteColorFormat(GR_COLORFORMAT_ARGB); 2252693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xmesa->xm_visual->undithered_pf==PF_5R6G5B) { 2253693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Special case: 16bpp RGB */ 2254693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbReadRegion( GR_BUFFER_FRONTBUFFER, /* src buffer */ 2255693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, xmesa->xm_buffer->FXctx->height - b->height, /*pos*/ 2256693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, b->height, /* size */ 2257693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width * sizeof(GLushort), /* stride */ 2258693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage->data); /* dest buffer */ 2259693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2260693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (xmesa->xm_visual->dithered_pf==PF_DITHER 2261693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_VISUAL_DEPTH(xmesa->xm_visual)==8) { 2262693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Special case: 8bpp RGB */ 2263693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (y=0;y<b->height;y++) { 2264693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLubyte *ptr = (GLubyte*) xmesa->xm_buffer->backimage->data 2265693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + xmesa->xm_buffer->backimage->bytes_per_line * y; 2266693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDITHER_SETUP(y); 2267693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2268693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* read row from 3Dfx frame buffer */ 2269693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbReadRegion( GR_BUFFER_FRONTBUFFER, 2270693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, xmesa->xm_buffer->FXctx->height-(b->height-y), 2271693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, 1, 2272693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 2273693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul pixbuf ); 2274693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2275693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* write to XImage back buffer */ 2276693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (x=0;x<b->width;x++) { 2277693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLubyte r = (pixbuf[x] & 0xf800) >> 8; 2278693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLubyte g = (pixbuf[x] & 0x07e0) >> 3; 2279693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLubyte b = (pixbuf[x] & 0x001f) << 3; 2280693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *ptr++ = XDITHER( x, r, g, b); 2281693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2282693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2283693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2284693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2285693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* General case: slow! */ 2286693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (y=0;y<b->height;y++) { 2287693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* read row from 3Dfx frame buffer */ 2288693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbReadRegion( GR_BUFFER_FRONTBUFFER, 2289693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, xmesa->xm_buffer->FXctx->height-(b->height-y), 2290693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, 1, 2291693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 2292693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul pixbuf ); 2293693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2294693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* write to XImage back buffer */ 2295693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (x=0;x<b->width;x++) { 2296693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutPixel(b->backimage,x,y, 2297693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa_color_to_pixel(xmesa, 2298693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (pixbuf[x] & 0xf800) >> 8, 2299693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (pixbuf[x] & 0x07e0) >> 3, 2300693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (pixbuf[x] & 0x001f) << 3, 2301693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0xff, xmesa->pixelformat)); 2302693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2303693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2304693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2305693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbWriteColorFormat(GR_COLORFORMAT_ABGR); 2306693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2307693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2308693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2309693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2310693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2311693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Copy the back buffer to the front buffer. If there's no back buffer 2312693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * this is a no-op. 2313693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2314693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaSwapBuffers( XMesaBuffer b ) 2315693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2316693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2317693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2318693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* If we're swapping the buffer associated with the current context 2319693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * we have to flush any pending rendering commands first. 2320693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2321693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_context && b->xm_context->gl_ctx == ctx) 2322693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _mesa_swapbuffers(ctx); 2323693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2324693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state) { 2325693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2326693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->FXctx) { 2327693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxMesaSwapBuffers(); 2328693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2329693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->FXwindowHack) 2330693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FXgetImage(b); 2331693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 2332693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return; 2333693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2334693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2335693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 2336693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy Ximage from host's memory to server's window */ 2337693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(USE_XSHM) && !defined(XFree86Server) 2338693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm) { 2339693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ 2340693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmPutImage( b->xm_visual->display, b->frontbuffer, 2341693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2342693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, 0, 0, 2343693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0, b->width, b->height, False ); 2344693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ 2345693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2346693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 2347693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2348693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2349693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) 2350693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDriSwapBuffers( b ); 2351693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2352693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ 2353693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutImage( b->xm_visual->display, b->frontbuffer, 2354693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2355693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, 0, 0, 2356693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0, b->width, b->height ); 2357693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ 2358693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2359693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2360693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2361693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2362693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy pixmap to window on server */ 2363693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ 2364693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaCopyArea( b->xm_visual->display, 2365693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backpixmap, /* source drawable */ 2366693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->frontbuffer, /* dest. drawable */ 2367693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2368693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0, b->width, b->height, /* source region */ 2369693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0 /* dest region */ 2370693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ); 2371693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ 2372693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2373693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2374693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if !defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) 2375693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync( b->xm_visual->display, False ); 2376693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2377693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2378693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2379693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2380693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2381693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2382693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Copy sub-region of back buffer to front buffer 2383693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2384693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaCopySubBuffer( XMesaBuffer b, int x, int y, int width, int height ) 2385693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2386693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2387693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2388693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* If we're swapping the buffer associated with the current context 2389693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * we have to flush any pending rendering commands first. 2390693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2391693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_context->gl_ctx == ctx) 2392693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _mesa_swapbuffers(ctx); 2393693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2394693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state) { 2395693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int yTop = b->bottom - y - height; 2396693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2397693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->FXctx) { 2398693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxMesaSwapBuffers(); 2399693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->FXwindowHack) 2400693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FXgetImage(b); 2401693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 2402693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return; 2403693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2404693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2405693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 2406693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy Ximage from host's memory to server's window */ 2407693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(USE_XSHM) && !defined(XFree86Server) 2408693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm) { 2409693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* XXX assuming width and height aren't too large! */ 2410693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmPutImage( b->xm_visual->display, b->frontbuffer, 2411693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2412693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, x, yTop, 2413693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x, yTop, width, height, False ); 2414693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* wait for finished event??? */ 2415693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2416693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 2417693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2418693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2419693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* XXX assuming width and height aren't too large! */ 2420693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutImage( b->xm_visual->display, b->frontbuffer, 2421693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2422693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, x, yTop, 2423693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x, yTop, width, height ); 2424693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2425693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2426693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2427693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy pixmap to window on server */ 2428693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaCopyArea( b->xm_visual->display, 2429693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backpixmap, /* source drawable */ 2430693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->frontbuffer, /* dest. drawable */ 2431693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2432693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x, yTop, width, height, /* source region */ 2433693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x, yTop /* dest region */ 2434693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ); 2435693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2436693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2437693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2438693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2439693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2440693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2441693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return a pointer to the XMesa backbuffer Pixmap or XImage. This function 2442693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * is a way to get "under the hood" of X/Mesa so one can manipulate the 2443693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * back buffer directly. 2444693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Output: pixmap - pointer to back buffer's Pixmap, or 0 2445693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * ximage - pointer to back buffer's XImage, or NULL 2446693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE = context is double buffered 2447693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE = context is single buffered 2448693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2449693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaGetBackBuffer( XMesaBuffer b, 2450693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPixmap *pixmap, 2451693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaImage **ximage ) 2452693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2453693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state) { 2454693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (pixmap) *pixmap = b->backpixmap; 2455693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ximage) *ximage = b->backimage; 2456693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2457693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2458693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2459693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *pixmap = 0; 2460693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *ximage = NULL; 2461693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2462693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2463693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2464693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2465693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2466693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2467693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return the depth buffer associated with an XMesaBuffer. 2468693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: b - the XMesa buffer handle 2469693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Output: width, height - size of buffer in pixels 2470693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * bytesPerValue - bytes per depth value (2 or 4) 2471693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * buffer - pointer to depth buffer values 2472693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE or GL_FALSE to indicate success or failure. 2473693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2474693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaGetDepthBuffer( XMesaBuffer b, GLint *width, GLint *height, 2475693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint *bytesPerValue, void **buffer ) 2476693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2477693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if ((!b->gl_buffer) || (!b->gl_buffer->DepthBuffer)) { 2478693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *width = 0; 2479693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *height = 0; 2480693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *bytesPerValue = 0; 2481693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *buffer = 0; 2482693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2483693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2484693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2485693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *width = b->gl_buffer->Width; 2486693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *height = b->gl_buffer->Height; 2487693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *bytesPerValue = sizeof(GLdepth); 2488693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *buffer = b->gl_buffer->DepthBuffer; 2489693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2490693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2491693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2492693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2493693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2494693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaFlush( XMesaContext c ) 2495693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2496693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c && c->xm_visual) { 2497693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 2498693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* NOT_NEEDED */ 2499693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2500693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync( c->xm_visual->display, False ); 2501693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2502693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2503693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2504693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2505693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2506693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2507693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulconst char *XMesaGetString( XMesaContext c, int name ) 2508693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2509693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) c; 2510693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (name==XMESA_VERSION) { 2511693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return "3.1"; 2512693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2513693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (name==XMESA_EXTENSIONS) { 2514693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return ""; 2515693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2516693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2517693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 2518693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2519693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2520693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2521693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2522693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2523693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaFindBuffer( XMesaDisplay *dpy, XMesaDrawable d ) 2524693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2525693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b; 2526693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b=XMesaBufferList; b; b=b->Next) { 2527693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->frontbuffer==d && b->display==dpy) { 2528693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 2529693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2530693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2531693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 2532693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2533693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2534693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2535693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2536693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2537693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Look for XMesaBuffers whose X window has been destroyed. 2538693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Deallocate any such XMesaBuffers. 2539693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2540693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaGarbageCollect( void ) 2541693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2542693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b, next; 2543693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b=XMesaBufferList; b; b=next) { 2544693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul next = b->Next; 2545693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->pixmap_flag) { 2546693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 2547693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* NOT_NEEDED */ 2548693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2549693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync(b->display, False); 2550693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!window_exists( b->display, b->frontbuffer )) { 2551693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* found a dead window, free the ancillary info */ 2552693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyBuffer( b ); 2553693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2554693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2555693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2556693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2557693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2558693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2559693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2560693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaReset( void ) 2561693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2562693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul while (XMesaBufferList) 2563693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyBuffer(XMesaBufferList); 2564693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2565693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBufferList = NULL; 2566693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2567693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2568693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2569693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulunsigned long XMesaDitherColor( XMesaContext xmesa, GLint x, GLint y, 2570693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLfloat red, GLfloat green, 2571693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLfloat blue, GLfloat alpha ) 2572693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2573693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint r = (GLint) (red * 255.0F); 2574693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint g = (GLint) (green * 255.0F); 2575693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint b = (GLint) (blue * 255.0F); 2576693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint a = (GLint) (alpha * 255.0F); 2577693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2578693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul switch (xmesa->pixelformat) { 2579693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_INDEX: 2580693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2581693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_TRUECOLOR: 2582693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2583693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long p; 2584693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PACK_TRUECOLOR( p, r, g, b ); 2585693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return p; 2586693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2587693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8A8B8G8R: 2588693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_8A8B8G8R( r, g, b, a ); 2589693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8R8G8B: 2590693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_8R8G8B( r, g, b ); 2591693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_5R6G5B: 2592693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_5R6G5B( r, g, b ); 2593693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_DITHER: 2594693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2595693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul DITHER_SETUP; 2596693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return DITHER( x, y, r, g, b ); 2597693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2598693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_1BIT: 2599693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 382 = (3*255)/2 */ 2600693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return ((r+g+b) > 382) ^ xmesa->xm_visual->bitFlip; 2601693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_HPCR: 2602693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return DITHER_HPCR(x, y, r, g, b); 2603693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_LOOKUP: 2604693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2605693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul LOOKUP_SETUP; 2606693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return LOOKUP( r, g, b ); 2607693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2608693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_GRAYSCALE: 2609693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GRAY_RGB( r, g, b ); 2610693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_DITHER_5R6G5B: 2611693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* fall through */ 2612693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_TRUEDITHER: 2613693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2614693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long p; 2615693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PACK_TRUEDITHER(p, x, y, r, g, b); 2616693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return p; 2617693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2618693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul default: 2619693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gl_problem(NULL, "Bad pixel format in XMesaDitherColor"); 2620693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2621693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2622693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2623693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2624693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2625