xm_api.c revision 655ba5d9927187e76b66f5886d090624dc4b1dd9
1655ba5d9927187e76b66f5886d090624dc4b1dd9Brian Paul/* $Id: xm_api.c,v 1.23 2001/05/29 19:48:47 brianp Exp $ */ 2693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 3693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 4693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Mesa 3-D graphics library 5536ede7e00ff5e2f10be3bf9b60cd2cfa80b3518Brian Paul * Version: 3.5 65e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 7693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. 85e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 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: 155e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 16693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * The above copyright notice and this permission notice shall be included 17693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * in all copies or substantial portions of the Software. 185e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen * 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" 7433143303feaf84afbef2e63ac0adab2d70b3c344Brian Paul#include "mmath.h" 755e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen#include "mtypes.h" 76693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef HAVE_CONFIG_H 77693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#include "conf.h" 78693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 79a4575499679d9d91055a35c7673b81872ec127cbJouk Jansen#include "macros.h" 80724abeb058ca9372c5a9b9e38ee43dde1accaa41Keith Whitwell#include "swrast/swrast.h" 81ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell#include "swrast_setup/swrast_setup.h" 82cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell#include "array_cache/acache.h" 8323caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell#include "tnl/tnl.h" 84693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 85693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef GLX_NONE_EXT 86693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#define GLX_NONE_EXT 0x8000 87693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 88693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 89693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 90693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 91693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Global X driver lock 92693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 93693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul_glthread_Mutex _xmesa_lock; 94693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 95693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 96693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 97693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 98693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Lookup tables for HPCR pixel format: 99693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 100693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic short hpcr_rgbTbl[3][256] = { 101693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 102693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 103693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 104693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, 105693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 106693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 107693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 108693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 109693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 110693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 111693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 112693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 113693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 114693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 115693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 116693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 117693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239 118693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul}, 119693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 120693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 121693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 122693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, 123693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 124693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 125693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 126693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 127693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 128693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 129693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 130693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 131693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 132693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 133693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 134693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 135693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239 136693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul}, 137693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 138693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, 139693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 40, 40, 41, 41, 42, 42, 43, 43, 44, 44, 45, 45, 46, 46, 47, 47, 140693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 48, 48, 49, 49, 50, 50, 51, 51, 52, 52, 53, 53, 54, 54, 55, 55, 141693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 56, 56, 57, 57, 58, 58, 59, 59, 60, 60, 61, 61, 62, 62, 63, 63, 142693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 64, 64, 65, 65, 66, 66, 67, 67, 68, 68, 69, 69, 70, 70, 71, 71, 143693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 72, 72, 73, 73, 74, 74, 75, 75, 76, 76, 77, 77, 78, 78, 79, 79, 144693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80, 80, 81, 81, 82, 82, 83, 83, 84, 84, 85, 85, 86, 86, 87, 87, 145693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 146693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 147693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 148693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 149693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 150693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 151693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 152693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 153693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223 1545e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen} 155693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul}; 156693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 157693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 158693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 159693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 160693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/***** X Utility Functions *****/ 161693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 162693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 163693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 164693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 165693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * X/Mesa error reporting function: 166693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 167693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void error( const char *msg ) 168693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 169693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) 170693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf( stderr, "X/Mesa error: %s\n", msg ); 171693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 172693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 173693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 174693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 175693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return the host's byte order as LSBFirst or MSBFirst ala X. 176693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 177693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 178693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int host_byte_order( void ) 179693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 180693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i = 1; 181693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul char *cptr = (char *) &i; 182693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return (*cptr==1) ? LSBFirst : MSBFirst; 183693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 184693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 185693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 186693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 187693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 188693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Error handling. 189693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 190693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 191693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int mesaXErrorFlag = 0; 192693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 193693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int mesaHandleXError( XMesaDisplay *dpy, XErrorEvent *event ) 194693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 195693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) dpy; 196693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) event; 197693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mesaXErrorFlag = 1; 198693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 199693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 200693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 201693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 202693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 203693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 204693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Check if the X Shared Memory extension is available. 205693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: 0 = not available 206693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 1 = shared XImage support available 207693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 2 = shared Pixmap support available also 208693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 209693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 210693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int check_for_xshm( XMesaDisplay *display ) 211693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 212693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef USE_XSHM 213693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int major, minor, ignore; 214693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul Bool pixmaps; 215693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 216693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (XQueryExtension( display, "MIT-SHM", &ignore, &ignore, &ignore )) { 217693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (XShmQueryVersion( display, &major, &minor, &pixmaps )==True) { 218693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return (pixmaps==True) ? 2 : 1; 219693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 220693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 221693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 222693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 223693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 224693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 225693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 226693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 227693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 228693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Can't compile XSHM support */ 229693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 230693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 231693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 232693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 233693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 234693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 235693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 236693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return the width and height of the given drawable. 237693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 238693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void get_drawable_size( XMesaDisplay *dpy, XMesaDrawable d, 239693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned int *width, unsigned int *height) 240693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 241693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 242693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) dpy; 243693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *width = d->width; 244693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *height = d->height; 245693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 246693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul Window root; 247693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int x, y; 248693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned int bw, depth; 249693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 250693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _glthread_LOCK_MUTEX(_xmesa_lock); 251693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGetGeometry( dpy, d, &root, &x, &y, width, height, &bw, &depth ); 252693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _glthread_UNLOCK_MUTEX(_xmesa_lock); 253693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 254693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 255693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 256693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 257693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 258693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Apply gamma correction to an intensity value in [0..max]. Return the 259693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * new intensity value. 260693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 261693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLint gamma_adjust( GLfloat gamma, GLint value, GLint max ) 262693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 263693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (gamma == 1.0) { 264693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return value; 265693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 266693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 267693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double x = (double) value / (double) max; 26833143303feaf84afbef2e63ac0adab2d70b3c344Brian Paul return IROUND_POS((GLfloat) max * pow(x, 1.0F/gamma)); 269693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 270693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 271693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 272693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 273693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 274693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 275693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return the true number of bits per pixel for XImages. 276693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * For example, if we request a 24-bit deep visual we may actually need/get 277693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * 32bpp XImages. This function returns the appropriate bpp. 278693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: dpy - the X display 279693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visinfo - desribes the visual to be used for XImages 280693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: true number of bits per pixel for XImages 281693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 282693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#define GET_BITS_PER_PIXEL(xmv) bits_per_pixel(xmv) 283693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 284693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 285693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 286693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int bits_per_pixel( XMesaVisual xmv ) 287693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 288693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisualInfo visinfo = xmv->visinfo; 289693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul const int depth = visinfo->nplanes; 290693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i; 291693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i = 0; i < screenInfo.numPixmapFormats; i++) { 292693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (screenInfo.formats[i].depth == depth) 293693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return screenInfo.formats[i].bitsPerPixel; 294693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 295693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return depth; /* should never get here, but this should be safe */ 296693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 297693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 298693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 299693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 300693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int bits_per_pixel( XMesaVisual xmv ) 301693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 302693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDisplay *dpy = xmv->display; 303693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisualInfo visinfo = xmv->visinfo; 304693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaImage *img; 305693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int bitsPerPixel; 306693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Create a temporary XImage */ 307693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul img = XCreateImage( dpy, visinfo->visual, visinfo->depth, 308693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ZPixmap, 0, /*format, offset*/ 309693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (char*) MALLOC(8), /*data*/ 310693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1, 1, /*width, height*/ 311693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, /*bitmap_pad*/ 312693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0 /*bytes_per_line*/ 313693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ); 314693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(img); 315693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* grab the bits/pixel value */ 316693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bitsPerPixel = img->bits_per_pixel; 317693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* free the XImage */ 318693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE( img->data ); 319693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul img->data = NULL; 320693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( img ); 321693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return bitsPerPixel; 322693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 323693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 324693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 325693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 326693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 327693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 328693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Determine if a given X window ID is valid (window exists). 329693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Do this by calling XGetWindowAttributes() for the window and 330693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * checking if we catch an X error. 331693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: dpy - the display 332693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * win - the window to check for existance 333693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE - window exists 334693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE - window doesn't exist 335693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 336693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 337693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean WindowExistsFlag; 338693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 339693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int window_exists_err_handler( XMesaDisplay* dpy, XErrorEvent* xerr ) 340693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 341693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) dpy; 342693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xerr->error_code == BadWindow) { 343693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul WindowExistsFlag = GL_FALSE; 344693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 345693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 346693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 347693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 348693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean window_exists( XMesaDisplay *dpy, Window win ) 349693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 350693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XWindowAttributes wa; 351693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int (*old_handler)( XMesaDisplay*, XErrorEvent* ); 352693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul WindowExistsFlag = GL_TRUE; 353693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul old_handler = XSetErrorHandler(window_exists_err_handler); 354693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGetWindowAttributes( dpy, win, &wa ); /* dummy request */ 355693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSetErrorHandler(old_handler); 356693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return WindowExistsFlag; 357693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 358693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 359693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 360693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 361693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 362693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 363693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/***** Linked list of XMesaBuffers *****/ 364693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 365693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 366693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic XMesaBuffer XMesaBufferList = NULL; 367693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 368693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 369693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* Allocate a new XMesaBuffer, add to linked list */ 370693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic XMesaBuffer alloc_xmesa_buffer(void) 371693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 372693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b = (XMesaBuffer) CALLOC_STRUCT(xmesa_buffer); 373693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b) { 374693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->Next = XMesaBufferList; 375693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBufferList = b; 376693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 377693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 378693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 379693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 380693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 381693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 382693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Find an XMesaBuffer by matching X display and colormap but NOT matching 383693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the notThis buffer. 384693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 385693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic XMesaBuffer find_xmesa_buffer(XMesaDisplay *dpy, 386693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColormap cmap, 387693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer notThis) 388693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 389693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b; 390693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b=XMesaBufferList; b; b=b->Next) { 391693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->display==dpy && b->cmap==cmap && b!=notThis) { 392693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 393693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 394693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 395693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 396693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 397693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 398693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 399693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 400693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Free an XMesaBuffer, remove from linked list, perhaps free X colormap 401693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * entries. 402693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 403693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void free_xmesa_buffer(int client, XMesaBuffer buffer) 404693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 405693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer prev = NULL, b; 406693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) client; 407693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b=XMesaBufferList; b; b=b->Next) { 408693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b==buffer) { 409693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* unlink bufer from list */ 410693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (prev) 411693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prev->Next = buffer->Next; 412693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 413693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBufferList = buffer->Next; 414693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Check to free X colors */ 415693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (buffer->num_alloced>0) { 416693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* If no other buffer uses this X colormap then free the colors. */ 417693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!find_xmesa_buffer(buffer->display, buffer->cmap, buffer)) { 418693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 419693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void)FreeColors(buffer->cmap, client, 420693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->num_alloced, buffer->alloced_colors, 421693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0); 422693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 423693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XFreeColors(buffer->display, buffer->cmap, 424693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->alloced_colors, buffer->num_alloced, 0); 425693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 426693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 427693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 4281832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul 4291832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul _mesa_free_framebuffer_data(&buffer->mesa_buffer); 430693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(buffer); 4311832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul 432693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return; 433693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 434693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* continue search */ 435693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prev = b; 436693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 437693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* buffer not found in XMesaBufferList */ 43808836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(NULL,"free_xmesa_buffer() - buffer not found\n"); 439693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 440693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 441693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 442693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* Copy X color table stuff from one XMesaBuffer to another. */ 443693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void copy_colortable_info(XMesaBuffer dst, const XMesaBuffer src) 444693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 445693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->color_table, src->color_table, sizeof(src->color_table)); 446693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->pixel_to_r, src->pixel_to_r, sizeof(src->pixel_to_r)); 447693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->pixel_to_g, src->pixel_to_g, sizeof(src->pixel_to_g)); 448693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->pixel_to_b, src->pixel_to_b, sizeof(src->pixel_to_b)); 449693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul dst->num_alloced = src->num_alloced; 450693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(dst->alloced_colors, src->alloced_colors, 451693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul sizeof(src->alloced_colors)); 452693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 453693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 454693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 455693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 456693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 457693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/***** Misc Private Functions *****/ 458693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 459693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 460693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 461693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 462693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return number of bits set in n. 463693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 464693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic int bitcount( unsigned long n ) 465693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 466693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int bits; 467693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (bits=0; n>0; n=n>>1) { 468693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (n&1) { 469693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bits++; 470693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 471693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 472693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return bits; 473693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 474693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 475693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 476693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 477693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 478693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Allocate a shared memory XImage back buffer for the given XMesaBuffer. 479693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE if success, GL_FALSE if error 480693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 481693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 482693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean alloc_shm_back_buffer( XMesaBuffer b ) 483693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 484693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef USE_XSHM 485693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 486693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * We have to do a _lot_ of error checking here to be sure we can 487693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * really use the XSHM extension. It seems different servers trigger 488693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * errors at different points if the extension won't work. Therefore 489693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * we have to be very careful... 490693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 491693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GC gc; 492693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int (*old_handler)( XMesaDisplay *, XErrorEvent * ); 493693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 494693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = XShmCreateImage( b->xm_visual->display, 495693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual->visinfo->visual, 496693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual->visinfo->depth, 497693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ZPixmap, NULL, &b->shminfo, 498693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, b->height ); 499693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage == NULL) { 500693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: Shared memory error (XShmCreateImage), disabling."); 501693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 502693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 503693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 504693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 505693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shminfo.shmid = shmget( IPC_PRIVATE, b->backimage->bytes_per_line 506693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * b->backimage->height, IPC_CREAT|0777 ); 507693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shminfo.shmid < 0) { 508693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) 509693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul perror("alloc_back_buffer"); 510693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 511693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 512693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: Shared memory error (shmget), disabling."); 513693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 514693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 515693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 516693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 517693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shminfo.shmaddr = b->backimage->data 518693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul = (char*)shmat( b->shminfo.shmid, 0, 0 ); 519693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shminfo.shmaddr == (char *) -1) { 520693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) 521693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul perror("alloc_back_buffer"); 522693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 523693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmctl( b->shminfo.shmid, IPC_RMID, 0 ); 524693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 525693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: Shared memory error (shmat), disabling."); 526693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 527693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 528693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 529693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 530693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shminfo.readOnly = False; 531693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mesaXErrorFlag = 0; 532693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul old_handler = XSetErrorHandler( mesaHandleXError ); 533693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* This may trigger the X protocol error we're ready to catch: */ 534693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmAttach( b->xm_visual->display, &b->shminfo ); 535693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync( b->xm_visual->display, False ); 536693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 537693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (mesaXErrorFlag) { 538693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* we are on a remote display, this error is normal, don't print it */ 539693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XFlush( b->xm_visual->display ); 540693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mesaXErrorFlag = 0; 541693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 542693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmdt( b->shminfo.shmaddr ); 543693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmctl( b->shminfo.shmid, IPC_RMID, 0 ); 544693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 545693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 546693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) XSetErrorHandler( old_handler ); 547693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 548693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 549693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 550693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmctl( b->shminfo.shmid, IPC_RMID, 0 ); /* nobody else needs it */ 551693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 552693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Finally, try an XShmPutImage to be really sure the extension works */ 553693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gc = XCreateGC( b->xm_visual->display, b->frontbuffer, 0, NULL ); 554693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmPutImage( b->xm_visual->display, b->frontbuffer, gc, 555693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, 0, 0, 0, 0, 1, 1 /*one pixel*/, False ); 556693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync( b->xm_visual->display, False ); 557693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XFreeGC( b->xm_visual->display, gc ); 558693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) XSetErrorHandler( old_handler ); 559693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (mesaXErrorFlag) { 560693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XFlush( b->xm_visual->display ); 561693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mesaXErrorFlag = 0; 562693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 563693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmdt( b->shminfo.shmaddr ); 564693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmctl( b->shminfo.shmid, IPC_RMID, 0 ); 565693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 566693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = 0; 567693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 568693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 569693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 570693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 571693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int height = b->backimage->height; 572693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Needed by PIXELADDR1 macro */ 573693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_width1 = b->backimage->bytes_per_line; 574693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_origin1 = (GLubyte *) b->backimage->data 575693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + b->ximage_width1 * (height-1); 576693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Needed by PIXELADDR2 macro */ 577693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_width2 = b->backimage->bytes_per_line / 2; 578693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_origin2 = (GLushort *) b->backimage->data 579693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + b->ximage_width2 * (height-1); 580693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Needed by PIXELADDR3 macro */ 581693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_width3 = b->backimage->bytes_per_line; 582693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_origin3 = (GLubyte *) b->backimage->data 583693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + b->ximage_width3 * (height-1); 584693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Needed by PIXELADDR4 macro */ 585693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_width4 = b->backimage->width; 586693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->ximage_origin4 = (GLuint *) b->backimage->data 587693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + b->ximage_width4 * (height-1); 588693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 589693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 590693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 591693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 592693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Can't compile XSHM support */ 593693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 594693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 595693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 596693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 597693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 598693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 599693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 600693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 601693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup an off-screen pixmap or Ximage to use as the back buffer. 602693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: b - the X/Mesa buffer 603693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 604693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid xmesa_alloc_back_buffer( XMesaBuffer b ) 605693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 606693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state==BACK_XIMAGE) { 607693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Deallocate the old backimage, if any */ 608693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 609693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(USE_XSHM) && !defined(XFree86Server) 610693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm) { 611693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmDetach( b->xm_visual->display, &b->shminfo ); 612693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 613693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmdt( b->shminfo.shmaddr ); 614693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 615693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 616693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 617693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->backimage ); 618693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 619693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 620693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 621693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate new back buffer */ 622693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 623693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 624693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate a regular XImage for the back buffer. */ 625693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = XMesaCreateImage(b->xm_visual->BitsPerPixel, 626693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, b->height, NULL); 627693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 628693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm==0 629693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul || alloc_shm_back_buffer(b)==GL_FALSE 630693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ) { 631693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate a regular XImage for the back buffer. */ 632693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = XCreateImage( b->xm_visual->display, 633693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual->visinfo->visual, 634693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_VISUAL_DEPTH(b->xm_visual), 635693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ZPixmap, 0, /* format, offset */ 636693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul NULL, b->width, b->height, 637693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 8, 0 ); /* pad, bytes_per_line */ 638693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 639693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->backimage) { 640693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: XCreateImage failed."); 641693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 642693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage->data = (char *) MALLOC( b->backimage->height 643693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * b->backimage->bytes_per_line ); 644693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->backimage->data) { 645693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("alloc_back_buffer: MALLOC failed."); 646693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->backimage ); 647693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 648693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 649693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 650693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backpixmap = None; 651693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 652693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (b->db_state==BACK_PIXMAP) { 653693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPixmap old_pixmap = b->backpixmap; 654693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Free the old back pixmap */ 655693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backpixmap) { 656693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaFreePixmap( b->xm_visual->display, b->backpixmap ); 657693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 658693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate new back pixmap */ 659693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backpixmap = XMesaCreatePixmap( b->xm_visual->display, b->frontbuffer, 660693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, b->height, 661693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_VISUAL_DEPTH(b->xm_visual) ); 662693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage = NULL; 663693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* update other references to backpixmap */ 664693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->buffer==(XMesaDrawable)old_pixmap) { 665693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->buffer = (XMesaDrawable)b->backpixmap; 666693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 667693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 668693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 669693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 670693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 671693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 672693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 673693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * A replacement for XAllocColor. This function should never 674693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * fail to allocate a color. When XAllocColor fails, we return 675693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the nearest matching color. If we have to allocate many colors 676693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * this function isn't too efficient; the XQueryColors() could be 677693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * done just once. 678693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Written by Michael Pichler, Brian Paul, Mark Kilgard 679693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: dpy - X display 680693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * cmap - X colormap 681693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * cmapSize - size of colormap 682693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * In/Out: color - the XColor struct 683693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Output: exact - 1=exact color match, 0=closest match 684693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * alloced - 1=XAlloc worked, 0=XAlloc failed 685693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 686693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void 687693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulnoFaultXAllocColor( int client, 688693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDisplay *dpy, 689693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColormap cmap, 690693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int cmapSize, 691693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColor *color, 692693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int *exact, int *alloced ) 693693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 694693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 695693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul Pixel *ppixIn; 696693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xrgb *ctable; 697693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 698693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* we'll try to cache ctable for better remote display performance */ 699693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static Display *prevDisplay = NULL; 700693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static XMesaColormap prevCmap = 0; 701693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static int prevCmapSize = 0; 702693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static XMesaColor *ctable = NULL; 703693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 704693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColor subColor; 705693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i, bestmatch; 706693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double mindist; /* 3*2^16^2 exceeds long int precision. */ 707693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 708693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) client; 709693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 710693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* First try just using XAllocColor. */ 711693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 712693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (AllocColor(cmap, 713693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &color->red, &color->green, &color->blue, 714693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &color->pixel, 715693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client) == Success) { 716693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 717693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (XAllocColor(dpy, cmap, color)) { 718693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 719693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *exact = 1; 720693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *alloced = 1; 721693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return; 722693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 723693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 724693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Alloc failed, search for closest match */ 725693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 726693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Retrieve color table entries. */ 727693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* XXX alloca candidate. */ 728693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 729693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ppixIn = (Pixel *) MALLOC(cmapSize * sizeof(Pixel)); 730693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ctable = (xrgb *) MALLOC(cmapSize * sizeof(xrgb)); 731693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i = 0; i < cmapSize; i++) { 732693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ppixIn[i] = i; 733693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 734693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul QueryColors(cmap, cmapSize, ppixIn, ctable); 735693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 736693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (prevDisplay != dpy || prevCmap != cmap 737693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul || prevCmapSize != cmapSize || !ctable) { 738693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* free previously cached color table */ 739693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctable) 740693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(ctable); 741693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Get the color table from X */ 742693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ctable = (XMesaColor *) MALLOC(cmapSize * sizeof(XMesaColor)); 743693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(ctable); 744693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i = 0; i < cmapSize; i++) { 745693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ctable[i].pixel = i; 746693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 747693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XQueryColors(dpy, cmap, ctable, cmapSize); 748693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevDisplay = dpy; 749693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevCmap = cmap; 750693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevCmapSize = cmapSize; 751693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 752693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 753693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 754693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Find best match. */ 755693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bestmatch = -1; 756693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mindist = 0.0; 757693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i = 0; i < cmapSize; i++) { 758693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double dr = 0.30 * ((double) color->red - (double) ctable[i].red); 759693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double dg = 0.59 * ((double) color->green - (double) ctable[i].green); 760693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double db = 0.11 * ((double) color->blue - (double) ctable[i].blue); 761693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double dist = dr * dr + dg * dg + db * db; 762693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (bestmatch < 0 || dist < mindist) { 763693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bestmatch = i; 764693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul mindist = dist; 765693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 766693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 767693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 768693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Return result. */ 769693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.red = ctable[bestmatch].red; 770693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.green = ctable[bestmatch].green; 771693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.blue = ctable[bestmatch].blue; 772693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Try to allocate the closest match color. This should only 773693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * fail if the cell is read/write. Otherwise, we're incrementing 774693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the cell's reference count. 775693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 776693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 777693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (AllocColor(cmap, 778693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &subColor.red, &subColor.green, &subColor.blue, 779693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &subColor.pixel, 780693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client) == Success) { 781693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 782693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (XAllocColor(dpy, cmap, &subColor)) { 783693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 784693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *alloced = 1; 785693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 786693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 787693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* do this to work around a problem reported by Frank Ortega */ 788693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.pixel = (unsigned long) bestmatch; 789693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.red = ctable[bestmatch].red; 790693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.green = ctable[bestmatch].green; 7915e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen subColor.blue = ctable[bestmatch].blue; 792693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul subColor.flags = DoRed | DoGreen | DoBlue; 793693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *alloced = 0; 794693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 795693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 796693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(ppixIn); 797693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(ctable); 798693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 799693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* don't free table, save it for next time */ 800693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 801693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 802693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *color = subColor; 803693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *exact = 0; 804693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 805693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 806693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 807693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 808693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 809693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 810693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Do setup for PF_GRAYSCALE pixel format. 811693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Note that buffer may be NULL. 812693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 813693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean setup_grayscale( int client, XMesaVisual v, 814693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer buffer, XMesaColormap cmap ) 815693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 816693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (GET_VISUAL_DEPTH(v)<4 || GET_VISUAL_DEPTH(v)>16) { 817693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 818693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 819693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 820693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (buffer) { 821693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer prevBuffer; 822693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 823693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!cmap) { 824693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 825693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 826693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 827693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevBuffer = find_xmesa_buffer(v->display, cmap, buffer); 828693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (prevBuffer && 8291832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul (buffer->xm_visual->mesa_visual.rgbMode == 8301832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul prevBuffer->xm_visual->mesa_visual.rgbMode)) { 831693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy colormap stuff from previous XMesaBuffer which uses same 832693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * X colormap. Do this to avoid time spent in noFaultXAllocColor. 833693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 834693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul copy_colortable_info(buffer, prevBuffer); 835693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 836693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 837693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate 256 shades of gray */ 838693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int gray; 839693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int colorsfailed = 0; 840693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (gray=0;gray<256;gray++) { 841693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint r = gamma_adjust( v->RedGamma, gray, 255 ); 842693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint g = gamma_adjust( v->GreenGamma, gray, 255 ); 843693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint b = gamma_adjust( v->BlueGamma, gray, 255 ); 844693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int exact, alloced; 845693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColor xcol; 846693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.red = (r << 8) | r; 847693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.green = (g << 8) | g; 848693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.blue = (b << 8) | b; 849693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul noFaultXAllocColor( client, v->display, 850693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul cmap, GET_COLORMAP_SIZE(v), 851693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &xcol, &exact, &alloced ); 852693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!exact) { 853693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul colorsfailed++; 854693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 855693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (alloced) { 856693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(buffer->num_alloced<256); 857693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->alloced_colors[buffer->num_alloced] = xcol.pixel; 858693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->num_alloced++; 859693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 860693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 861693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*OLD 862693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(gray < 576); 863693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[gray*3+0] = xcol.pixel; 864693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[gray*3+1] = xcol.pixel; 865693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[gray*3+2] = xcol.pixel; 866693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(xcol.pixel < 65536); 867693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_r[xcol.pixel] = gray * 30 / 100; 868693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_g[xcol.pixel] = gray * 59 / 100; 869693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_b[xcol.pixel] = gray * 11 / 100; 870693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 871693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[gray] = xcol.pixel; 872693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(xcol.pixel < 65536); 873693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_r[xcol.pixel] = gray; 874693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_g[xcol.pixel] = gray; 875693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_b[xcol.pixel] = gray; 876693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 877693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 878693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (colorsfailed && getenv("MESA_DEBUG")) { 879693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf( stderr, 880693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul "Note: %d out of 256 needed colors do not match exactly.\n", 881693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul colorsfailed ); 882693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 883693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 884693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 885693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 886693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = PF_GRAYSCALE; 887693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_GRAYSCALE; 888693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 889693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 890693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 891693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 892693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 893693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 894693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup RGB rendering for a window with a PseudoColor, StaticColor, 895693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * or 8-bit TrueColor visual visual. We try to allocate a palette of 225 896693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * colors (5 red, 9 green, 5 blue) and dither to approximate a 24-bit RGB 897693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * color. While this function was originally designed just for 8-bit 898693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visuals, it has also proven to work from 4-bit up to 16-bit visuals. 899693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Dithering code contributed by Bob Mercier. 900693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 901693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean setup_dithered_color( int client, XMesaVisual v, 902693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer buffer, XMesaColormap cmap ) 903693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 904693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (GET_VISUAL_DEPTH(v)<4 || GET_VISUAL_DEPTH(v)>16) { 905693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 906693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 907693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 908693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (buffer) { 909693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer prevBuffer; 910693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 911693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!cmap) { 912693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 913693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 914693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 915693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul prevBuffer = find_xmesa_buffer(v->display, cmap, buffer); 916693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (prevBuffer && 9171832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul (buffer->xm_visual->mesa_visual.rgbMode == 9181832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul prevBuffer->xm_visual->mesa_visual.rgbMode)) { 919693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy colormap stuff from previous, matching XMesaBuffer. 920693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Do this to avoid time spent in noFaultXAllocColor. 921693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 922693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul copy_colortable_info(buffer, prevBuffer); 923693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 924693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 925693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Allocate X colors and initialize color_table[], red_table[], etc */ 926693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int r, g, b, i; 927693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int colorsfailed = 0; 928693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (r = 0; r < _R; r++) { 929693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (g = 0; g < _G; g++) { 930693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b = 0; b < _B; b++) { 931693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColor xcol; 932693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int exact, alloced; 933693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.red =gamma_adjust(v->RedGamma, r*65535/(_R-1),65535); 934693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.green=gamma_adjust(v->GreenGamma, g*65535/(_G-1),65535); 935693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xcol.blue =gamma_adjust(v->BlueGamma, b*65535/(_B-1),65535); 936693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul noFaultXAllocColor( client, v->display, 937693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul cmap, GET_COLORMAP_SIZE(v), 938693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul &xcol, &exact, &alloced ); 939693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!exact) { 940693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul colorsfailed++; 941693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 942693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (alloced) { 943693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(buffer->num_alloced<256); 944693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->alloced_colors[buffer->num_alloced] = xcol.pixel; 945693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->num_alloced++; 946693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 947693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul i = _MIX( r, g, b ); 948693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(i < 576); 949693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->color_table[i] = xcol.pixel; 950693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(xcol.pixel < 65536); 951693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_r[xcol.pixel] = r * 255 / (_R-1); 952693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_g[xcol.pixel] = g * 255 / (_G-1); 953693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul buffer->pixel_to_b[xcol.pixel] = b * 255 / (_B-1); 954693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 955693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 956693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 957693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 958693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (colorsfailed && getenv("MESA_DEBUG")) { 959693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf( stderr, 960693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul "Note: %d out of %d needed colors do not match exactly.\n", 961693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul colorsfailed, _R*_G*_B ); 962693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 963693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 964693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 965693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 966693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = PF_DITHER; 967693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_LOOKUP; 968693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 969693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 970693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 971693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 972693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 973693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup for Hewlett Packard Color Recovery 8-bit TrueColor mode. 974693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * HPCR simulates 24-bit color fidelity with an 8-bit frame buffer. 975693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Special dithering tables have to be initialized. 976693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 977693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void setup_8bit_hpcr( XMesaVisual v ) 978693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 979693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* HP Color Recovery contributed by: Alex De Bruyn (ad@lms.be) 980693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * To work properly, the atom _HP_RGB_SMOOTH_MAP_LIST must be defined 981693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * on the root window AND the colormap obtainable by XGetRGBColormaps 982693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * for that atom must be set on the window. (see also tkInitWindow) 983693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * If that colormap is not set, the output will look stripy. 984693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 985693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 986693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Setup color tables with gamma correction */ 987693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i; 988693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul double g; 989693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 9905e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen g = 1.0 / v->RedGamma; 9915e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen for (i=0; i<256; i++) { 99233143303feaf84afbef2e63ac0adab2d70b3c344Brian Paul GLint red = IROUND_POS(255.0 * pow( hpcr_rgbTbl[0][i]/255.0, g )); 993693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_rgbTbl[0][i] = CLAMP( red, 16, 239 ); 994693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 995693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 996693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul g = 1.0 / v->GreenGamma; 997693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<256; i++) { 99833143303feaf84afbef2e63ac0adab2d70b3c344Brian Paul GLint green = IROUND_POS(255.0 * pow( hpcr_rgbTbl[1][i]/255.0, g )); 999693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_rgbTbl[1][i] = CLAMP( green, 16, 239 ); 1000693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1001693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1002693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul g = 1.0 / v->BlueGamma; 1003693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<256; i++) { 100433143303feaf84afbef2e63ac0adab2d70b3c344Brian Paul GLint blue = IROUND_POS(255.0 * pow( hpcr_rgbTbl[2][i]/255.0, g )); 1005693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_rgbTbl[2][i] = CLAMP( blue, 32, 223 ); 1006693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1007693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_HPCR; /* can't really disable dithering for now */ 1008693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = PF_HPCR; 1009693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1010693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* which method should I use to clear */ 1011693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* GL_FALSE: keep the ordinary method */ 1012693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* GL_TRUE : clear with dither pattern */ 1013693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_clear_flag = getenv("MESA_HPCR_CLEAR") ? GL_TRUE : GL_FALSE; 1014693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1015693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->hpcr_clear_flag) { 1016693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_clear_pixmap = XMesaCreatePixmap(v->display, 1017693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul DefaultRootWindow(v->display), 1018693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 16, 2, 8); 1019693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1020693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->hpcr_clear_ximage = XGetImage(v->display, v->hpcr_clear_pixmap, 1021693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0, 16, 2, AllPlanes, ZPixmap); 1022693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1023693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1024693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1025693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1026693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1027693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1028693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup RGB rendering for a window with a True/DirectColor visual. 1029693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1030693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void setup_truecolor( XMesaVisual v, XMesaBuffer buffer, 1031693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaWindow window, XMesaColormap cmap ) 1032693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1033693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long rmask, gmask, bmask; 1034693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) buffer; 1035693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) window; 1036693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) cmap; 1037693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1038693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Compute red multiplier (mask) and bit shift */ 1039693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->rshift = 0; 1040693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul rmask = GET_REDMASK(v); 1041693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul while ((rmask & 1)==0) { 1042693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->rshift++; 1043693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul rmask = rmask >> 1; 1044693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1045693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1046693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Compute green multiplier (mask) and bit shift */ 1047693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->gshift = 0; 1048693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gmask = GET_GREENMASK(v); 1049693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul while ((gmask & 1)==0) { 1050693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->gshift++; 1051693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gmask = gmask >> 1; 1052693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1053693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1054693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Compute blue multiplier (mask) and bit shift */ 1055693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->bshift = 0; 1056693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bmask = GET_BLUEMASK(v); 1057693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul while ((bmask & 1)==0) { 1058693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->bshift++; 1059693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul bmask = bmask >> 1; 1060693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1061693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1062693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1063693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Compute component-to-pixel lookup tables and dithering kernel 1064693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1065693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1066693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static GLubyte kernel[16] = { 1067693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0*16, 8*16, 2*16, 10*16, 1068693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 12*16, 4*16, 14*16, 6*16, 1069693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 3*16, 11*16, 1*16, 9*16, 1070693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 15*16, 7*16, 13*16, 5*16, 1071693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul }; 1072693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint rBits = bitcount(rmask); 1073693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint gBits = bitcount(gmask); 1074693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint bBits = bitcount(bmask); 10753cbbef53bcf9a74beec3d6699a03e8d0c2eb24e2Brian Paul GLint maxBits; 1076693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLuint i; 1077693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1078693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* convert pixel components in [0,_mask] to RGB values in [0,255] */ 1079693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<=rmask; i++) 1080693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->PixelToR[i] = (unsigned char) ((i * 255) / rmask); 1081693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<=gmask; i++) 1082693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->PixelToG[i] = (unsigned char) ((i * 255) / gmask); 1083693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<=bmask; i++) 1084693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->PixelToB[i] = (unsigned char) ((i * 255) / bmask); 1085693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1086693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* convert RGB values from [0,255] to pixel components */ 1087693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1088693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0;i<256;i++) { 1089693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint r = gamma_adjust(v->RedGamma, i, 255); 1090693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint g = gamma_adjust(v->GreenGamma, i, 255); 1091693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint b = gamma_adjust(v->BlueGamma, i, 255); 1092693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->RtoPixel[i] = (r >> (8-rBits)) << v->rshift; 1093693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->GtoPixel[i] = (g >> (8-gBits)) << v->gshift; 1094693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->BtoPixel[i] = (b >> (8-bBits)) << v->bshift; 1095693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1096693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* overflow protection */ 1097693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=256;i<512;i++) { 1098693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->RtoPixel[i] = v->RtoPixel[255]; 1099693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->GtoPixel[i] = v->GtoPixel[255]; 1100693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->BtoPixel[i] = v->BtoPixel[255]; 1101693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1102693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1103693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* setup dithering kernel */ 11043cbbef53bcf9a74beec3d6699a03e8d0c2eb24e2Brian Paul maxBits = rBits; 11053cbbef53bcf9a74beec3d6699a03e8d0c2eb24e2Brian Paul if (gBits > maxBits) maxBits = gBits; 11063cbbef53bcf9a74beec3d6699a03e8d0c2eb24e2Brian Paul if (bBits > maxBits) maxBits = bBits; 1107693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0;i<16;i++) { 11083cbbef53bcf9a74beec3d6699a03e8d0c2eb24e2Brian Paul v->Kernel[i] = kernel[i] >> maxBits; 1109693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1110693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1111693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_TRUECOLOR; 1112693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = (GET_VISUAL_DEPTH(v)<24) ? PF_TRUEDITHER : PF_TRUECOLOR; 1113693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1114693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1115693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1116693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Now check for TrueColor visuals which we can optimize. 1117693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1118693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if ( GET_REDMASK(v) ==0x0000ff 1119693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x00ff00 1120693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0xff0000 1121693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_BYTE_ORDER(v) 1122693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->BitsPerPixel==32 1123693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && sizeof(GLuint)==4 1124693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { 1125693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* common 32 bpp config used on SGI, Sun */ 1126693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = v->dithered_pf = PF_8A8B8G8R; 1127693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1128693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (GET_REDMASK(v) ==0xff0000 1129693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x00ff00 1130693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0x0000ff 1131693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_BYTE_ORDER(v) 1132693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->BitsPerPixel==32 1133693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && sizeof(GLuint)==4 1134693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { 1135693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* common 32 bpp config used on Linux, HP, IBM */ 1136693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = v->dithered_pf = PF_8R8G8B; 1137693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1138693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (GET_REDMASK(v) ==0xff0000 1139693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x00ff00 1140693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0x0000ff 1141693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_BYTE_ORDER(v) 1142693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->BitsPerPixel==24 1143693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && sizeof(GLuint)==4 1144693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { 1145693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* common packed 24 bpp config used on Linux */ 1146693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = v->dithered_pf = PF_8R8G8B24; 1147693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1148693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (GET_REDMASK(v) ==0xf800 1149693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x07e0 1150693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0x001f 1151693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_BYTE_ORDER(v) 1152693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->BitsPerPixel==16 1153693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && sizeof(GLushort)==2 1154693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { 1155693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 5-6-5 color weight on common PC VGA boards */ 1156693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->undithered_pf = PF_5R6G5B; 1157693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = PF_DITHER_5R6G5B; 1158693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1159693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (GET_REDMASK(v) ==0xe0 1160693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_GREENMASK(v)==0x1c 1161693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_BLUEMASK(v) ==0x03 1162693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && CHECK_FOR_HPCR(v)) { 1163693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul setup_8bit_hpcr( v ); 1164693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1165693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1166693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1167693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1168693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1169693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1170693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Setup RGB rendering for a window with a monochrome visual. 1171693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1172693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void setup_monochrome( XMesaVisual v, XMesaBuffer b ) 1173693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1174693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) b; 1175693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = v->undithered_pf = PF_1BIT; 1176693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* if black=1 then we must flip pixel values */ 1177693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->bitFlip = (GET_BLACK_PIXEL(v) != 0); 1178693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1179693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1180693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1181693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1182693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1183693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * When a context is "made current" for the first time, we can finally 1184693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * finish initializing the context's visual and buffer information. 1185693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: v - the XMesaVisual to initialize 1186693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * b - the XMesaBuffer to initialize (may be NULL) 1187693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * rgb_flag - TRUE = RGBA mode, FALSE = color index mode 1188693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * window - the window/pixmap we're rendering into 1189693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * cmap - the colormap associated with the window/pixmap 1190693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE=success, GL_FALSE=failure 1191693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1192693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic GLboolean initialize_visual_and_buffer( int client, 1193693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisual v, 1194693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b, 1195693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean rgb_flag, 1196693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDrawable window, 1197693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaColormap cmap 1198693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ) 1199693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1200693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1201693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGCValues gcvalues; 1202693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1203693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1204693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b) { 1205693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(b->xm_visual == v); 1206693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1207693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1208693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Save true bits/pixel */ 1209693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->BitsPerPixel = GET_BITS_PER_PIXEL(v); 1210693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(v->BitsPerPixel > 0); 1211693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1212693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1213693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (rgb_flag==GL_FALSE) { 1214693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* COLOR-INDEXED WINDOW: 1215693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Even if the visual is TrueColor or DirectColor we treat it as 1216693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * being color indexed. This is weird but might be useful to someone. 1217693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1218693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = v->undithered_pf = PF_INDEX; 1219693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->index_bits = GET_VISUAL_DEPTH(v); 1220693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1221693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1222693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* RGB WINDOW: 1223693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * We support RGB rendering into almost any kind of visual. 1224693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1225693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int xclass; 1226693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xclass = GET_VISUAL_CLASS(v); 1227693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xclass==TrueColor || xclass==DirectColor) { 1228693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul setup_truecolor( v, b, (XMesaWindow)window, cmap ); 1229693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1230693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (xclass==StaticGray && GET_VISUAL_DEPTH(v)==1) { 1231693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul setup_monochrome( v, b ); 1232693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1233693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (xclass==GrayScale || xclass==StaticGray) { 1234693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!setup_grayscale( client, v, b, cmap )) { 1235693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 1236693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1237693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1238693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if ((xclass==PseudoColor || xclass==StaticColor) 1239693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_VISUAL_DEPTH(v)>=4 && GET_VISUAL_DEPTH(v)<=16) { 1240693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!setup_dithered_color( client, v, b, cmap )) { 1241693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 1242693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1243693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1244693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1245693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul error("XMesa: RGB mode rendering not supported in given visual."); 1246693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 1247693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1248693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->index_bits = 0; 1249693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1250693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_NO_DITHER")) { 1251693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->dithered_pf = v->undithered_pf; 1252693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1253693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1254693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1255693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1256693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1257693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * If MESA_INFO env var is set print out some debugging info 1258693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * which can help Brian figure out what's going on when a user 1259693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * reports bugs. 1260693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1261693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_INFO")) { 1262693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa visual = %p\n", v); 1263693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa dithered pf = %u\n", v->dithered_pf); 1264693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa undithered pf = %u\n", v->undithered_pf); 1265693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa level = %d\n", v->level); 1266693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa depth = %d\n", GET_VISUAL_DEPTH(v)); 1267693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "X/Mesa bits per pixel = %d\n", v->BitsPerPixel); 1268693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1269693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1270693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b && window) { 1271693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Do window-specific initializations */ 1272693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1273693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Window dimensions */ 1274693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned int w, h; 1275693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul get_drawable_size( v->display, window, &w, &h ); 1276693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width = w; 1277693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->height = h; 1278693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1279693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->frontbuffer = window; 1280693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1281693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Setup for single/double buffering */ 12821832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (v->mesa_visual.doubleBufferMode) { 1283693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Double buffered */ 1284693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1285693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->shm = check_for_xshm( v->display ); 1286693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1287693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa_alloc_back_buffer( b ); 1288693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state==BACK_PIXMAP) { 1289693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->buffer = (XMesaDrawable)b->backpixmap; 1290693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1291693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1292693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->buffer = XIMAGE; 1293693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1294693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1295693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1296693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Single Buffered */ 1297693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->buffer = b->frontbuffer; 1298693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1299693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1300693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* X11 graphics contexts */ 1301693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1302c19d783e0715ac01ad4d3fd0705500d2bf6f7039Brian Paul b->gc = CreateScratchGC(v->display, window->depth); 1303693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1304c19d783e0715ac01ad4d3fd0705500d2bf6f7039Brian Paul b->gc = XCreateGC( v->display, window, 0, NULL ); 1305693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1306c19d783e0715ac01ad4d3fd0705500d2bf6f7039Brian Paul XMesaSetFunction( v->display, b->gc, GXcopy ); 1307693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1308693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1309693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Don't generate Graphics Expose/NoExpose events in swapbuffers(). 1310693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Patch contributed by Michael Pichler May 15, 1995. 1311693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1312693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1313693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc = CreateScratchGC(v->display, window->depth); 1314693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1315693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul CARD32 v[1]; 1316693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v[0] = FALSE; 1317693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul dixChangeGC(NullClient, b->cleargc, GCGraphicsExposures, v, NULL); 1318693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1319693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1320693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gcvalues.graphics_exposures = False; 1321693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc = XCreateGC( v->display, window, 1322693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GCGraphicsExposures, &gcvalues); 1323693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1324693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetFunction( v->display, b->cleargc, GXcopy ); 1325693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1326693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Set fill style and tile pixmap once for all for HPCR stuff 1327693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * (instead of doing it each time in clear_color_HPCR_pixmap()) 1328693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Initialize whole stuff 1329693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Patch contributed by Jacques Leroy March 8, 1998. 1330693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1331693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->hpcr_clear_flag && b->buffer!=XIMAGE) { 1332693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int i; 1333693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (i=0; i<16; i++) 1334693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1335693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutPixel(v->hpcr_clear_ximage, i, 0, 0); 1336693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutPixel(v->hpcr_clear_ximage, i, 1, 0); 1337693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1338693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutImage(b->display, (XMesaDrawable)v->hpcr_clear_pixmap, 1339693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, v->hpcr_clear_ximage, 0, 0, 0, 0, 16, 2); 1340693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetFillStyle( v->display, b->cleargc, FillTiled); 1341693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetTile( v->display, b->cleargc, v->hpcr_clear_pixmap ); 1342693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1343693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1344693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Initialize the row buffer XImage for use in write_color_span() */ 1345693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1346693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->rowimage = XMesaCreateImage(GET_VISUAL_DEPTH(v), MAX_WIDTH, 1, 1347693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (char *)MALLOC(MAX_WIDTH*4)); 1348693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1349693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->rowimage = XCreateImage( v->display, 1350693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->visinfo->visual, 1351693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->visinfo->depth, 1352693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ZPixmap, 0, /*format, offset*/ 1353693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (char*) MALLOC(MAX_WIDTH*4), /*data*/ 1354693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MAX_WIDTH, 1, /*width, height*/ 1355693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 32, /*bitmap_pad*/ 1356693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0 /*bytes_per_line*/ ); 1357693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1358693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1359693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1360693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 1361693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1362693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1363693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1364693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1365693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1366693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Convert an RGBA color to a pixel value. 1367693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1368693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulunsigned long 1369693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulxmesa_color_to_pixel( XMesaContext xmesa, GLubyte r, GLubyte g, GLubyte b, GLubyte a, 1370693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLuint pixelFormat) 1371693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1372693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul switch (pixelFormat) { 1373693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_INDEX: 1374693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 1375693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_TRUECOLOR: 1376693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1377693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long p; 1378693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PACK_TRUECOLOR( p, r, g, b ); 1379693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return p; 1380693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1381693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8A8B8G8R: 1382693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_8A8B8G8R( r, g, b, a ); 1383693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8R8G8B: 1384693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* fall through */ 1385693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8R8G8B24: 1386693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_8R8G8B( r, g, b ); 1387693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_5R6G5B: 1388693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_5R6G5B( r, g, b ); 1389693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_DITHER: 1390693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1391693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul DITHER_SETUP; 1392693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return DITHER( 1, 0, r, g, b ); 1393693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1394693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_1BIT: 1395693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 382 = (3*255)/2 */ 1396693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return ((r+g+b) > 382) ^ xmesa->xm_visual->bitFlip; 1397693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_HPCR: 1398693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return DITHER_HPCR(1, 1, r, g, b); 1399693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_LOOKUP: 1400693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1401693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul LOOKUP_SETUP; 1402693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return LOOKUP( r, g, b ); 1403693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1404693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_GRAYSCALE: 1405693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GRAY_RGB( r, g, b ); 1406693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_TRUEDITHER: 1407693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* fall through */ 1408693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_DITHER_5R6G5B: 1409693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1410693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long p; 1411693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PACK_TRUEDITHER(p, 1, 0, r, g, b); 1412693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return p; 1413693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1414693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul default: 141508836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(NULL, "Bad pixel format in xmesa_color_to_pixel"); 1416693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1417693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 1418693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1419693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1420693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1421693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 1422693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/***** Public Functions *****/ 1423693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/**********************************************************************/ 1424693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1425693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1426693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1427693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Create a new X/Mesa visual. 1428693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: display - X11 display 1429693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visinfo - an XVisualInfo pointer 1430693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * rgb_flag - GL_TRUE = RGB mode, 1431693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE = color index mode 1432693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * alpha_flag - alpha buffer requested? 1433693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * db_flag - GL_TRUE = double-buffered, 1434693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE = single buffered 1435693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * stereo_flag - stereo visual? 1436693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * ximage_flag - GL_TRUE = use an XImage for back buffer, 1437693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE = use an off-screen pixmap for back buffer 1438693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * depth_size - requested bits/depth values, or zero 1439693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * stencil_size - requested bits/stencil values, or zero 1440693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * accum_red_size - requested bits/red accum values, or zero 1441693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * accum_green_size - requested bits/green accum values, or zero 1442693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * accum_blue_size - requested bits/blue accum values, or zero 1443693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * accum_alpha_size - requested bits/alpha accum values, or zero 1444693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * num_samples - number of samples/pixel if multisampling, or zero 1445693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * level - visual level, usually 0 1446693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visualCaveat - ala the GLX extension, usually GLX_NONE_EXT 1447693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return; a new XMesaVisual or 0 if error. 1448693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1449693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaVisual XMesaCreateVisual( XMesaDisplay *display, 1450693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisualInfo visinfo, 1451693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean rgb_flag, 1452693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean alpha_flag, 1453693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean db_flag, 1454693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean stereo_flag, 1455693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean ximage_flag, 1456693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint depth_size, 1457693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint stencil_size, 1458693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint accum_red_size, 1459693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint accum_green_size, 1460693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint accum_blue_size, 1461693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint accum_alpha_size, 1462693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint num_samples, 1463693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint level, 1464693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint visualCaveat ) 1465693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1466693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul char *gamma; 1467693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaVisual v; 1468693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint red_bits, green_bits, blue_bits, alpha_bits; 1469693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1470693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* For debugging only */ 1471693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_XSYNC")) { 1472693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* This makes debugging X easier. 1473693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * In your debugger, set a breakpoint on _XError to stop when an 1474693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * X protocol error is generated. 1475693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1476693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1477693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* NOT_NEEDED */ 1478693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1479693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSynchronize( display, 1 ); 1480693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1481693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1482693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1483693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v = (XMesaVisual) CALLOC_STRUCT(xmesa_visual); 1484693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!v) { 1485693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1486693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1487693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1488693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 1489693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * In the X server, NULL is passed in for the display. It will have 1490693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * to be set before using this visual. See XMesaSetVisualDisplay() 1491693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * below. 1492693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1493693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->display = display; 1494693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1495693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Save a copy of the XVisualInfo struct because the user may XFREE() 1496693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * the struct but we may need some of the information contained in it 1497693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * at a later time. 1498693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1499693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1500693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->visinfo = visinfo; 1501693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1502693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->visinfo = (XVisualInfo *) MALLOC(sizeof(*visinfo)); 1503693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if(!v->visinfo) { 1504693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(v); 1505693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1506693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1507693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul MEMCPY(v->visinfo, visinfo, sizeof(*visinfo)); 1508693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1509693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Save a copy of the pointer now so we can find this visual again 1510693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * if we need to search for it in find_glx_visual(). 1511693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1512693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->vishandle = visinfo; 1513693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1514693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1515693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1516693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Initialize the depth of the screen */ 1517693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1518693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PixmapFormatRec *format; 1519693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1520693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (format = screenInfo.formats; 1521693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul format->depth != display->rootDepth; 1522693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul format++) 1523693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ; 1524693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->screen_depth = format->bitsPerPixel; 1525693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1526693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1527693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1528693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* check for MESA_GAMMA environment variable */ 1529693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul gamma = getenv("MESA_GAMMA"); 1530693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (gamma) { 1531693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->RedGamma = v->GreenGamma = v->BlueGamma = 0.0; 1532693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul sscanf( gamma, "%f %f %f", &v->RedGamma, &v->GreenGamma, &v->BlueGamma ); 1533693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->RedGamma<=0.0) v->RedGamma = 1.0; 1534693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->GreenGamma<=0.0) v->GreenGamma = v->RedGamma; 1535693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->BlueGamma<=0.0) v->BlueGamma = v->RedGamma; 1536693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1537693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1538693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->RedGamma = v->GreenGamma = v->BlueGamma = 1.0; 1539693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1540693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1541693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->ximage_flag = ximage_flag; 1542693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->level = level; 1543693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->VisualCaveat = visualCaveat; 1544693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1545693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) initialize_visual_and_buffer( 0, v, NULL, rgb_flag, 0, 0 ); 1546693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1547693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1548693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int xclass; 1549693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xclass = GET_VISUAL_CLASS(v); 1550693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xclass==TrueColor || xclass==DirectColor) { 1551693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul red_bits = bitcount(GET_REDMASK(v)); 1552693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul green_bits = bitcount(GET_GREENMASK(v)); 1553693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul blue_bits = bitcount(GET_BLUEMASK(v)); 1554693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul alpha_bits = 0; 1555693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1556693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1557693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* this is an approximation */ 1558693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int depth; 1559693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth = GET_VISUAL_DEPTH(v); 1560693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul red_bits = depth / 3; 1561693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth -= red_bits; 1562693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul green_bits = depth / 2; 1563693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth -= green_bits; 1564693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul blue_bits = depth; 1565693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul alpha_bits = 0; 1566693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert( red_bits + green_bits + blue_bits == GET_VISUAL_DEPTH(v) ); 1567693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1568693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1569693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1570693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (alpha_flag && alpha_bits == 0) 1571693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul alpha_bits = 8; 1572693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 15731832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul _mesa_initialize_visual( &v->mesa_visual, 15741832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul rgb_flag, db_flag, stereo_flag, 15751832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul red_bits, green_bits, 15761832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul blue_bits, alpha_bits, 15771832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->index_bits, 15781832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul depth_size, 15791832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul stencil_size, 15801832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul accum_red_size, accum_green_size, 15811832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul accum_blue_size, accum_alpha_size, 15821832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul 0 ); 1583693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return v; 1584693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1585693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1586693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1587693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaSetVisualDisplay( XMesaDisplay *dpy, XMesaVisual v ) 1588693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1589693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul v->display = dpy; 1590693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1591693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1592693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1593693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaDestroyVisual( XMesaVisual v ) 1594693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1595693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1596693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(v->visinfo); 1597693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1598693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(v); 1599693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1600693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1601693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1602693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1603693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1604693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Create a new XMesaContext. 1605693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: v - XMesaVisual 1606693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * share_list - another XMesaContext with which to share display 1607693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * lists or NULL if no sharing is wanted. 1608693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: an XMesaContext or NULL if error. 1609693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 16107a1f3a37a10b162b067239dafa19fc6865a41f14Keith WhitwellXMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list ) 1611693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1612693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext c; 1613ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell GLcontext *ctx; 1614693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLboolean direct = GL_TRUE; /* XXXX */ 1615693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* NOT_DONE: should this be GL_FALSE??? */ 1616693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static GLboolean firstTime = GL_TRUE; 1617693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1618693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (firstTime) { 1619693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _glthread_INIT_MUTEX(_xmesa_lock); 1620693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul firstTime = GL_FALSE; 1621693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1622693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1623693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c = (XMesaContext) CALLOC_STRUCT(xmesa_context); 1624693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!c) { 1625693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1626693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1627693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 16281832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul ctx = c->gl_ctx = _mesa_create_context( &v->mesa_visual, 16297a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell share_list ? share_list->gl_ctx : (GLcontext *) NULL, 16307a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell (void *) c, direct ); 1631693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!c->gl_ctx) { 1632693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE(c); 1633693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1634693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1635693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 16365a9026c65d260dc185e072163999f5d810015108Brian Paul _mesa_enable_sw_extensions(ctx); 1637693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1638693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (CHECK_BYTE_ORDER(v)) { 1639693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->swapbytes = GL_FALSE; 1640693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1641693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1642693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->swapbytes = GL_TRUE; 1643693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1644693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1645693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_visual = v; 1646693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer = NULL; /* set later by XMesaMakeCurrent */ 1647693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->display = v->display; 1648693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->pixelformat = v->dithered_pf; /* Dithering is enabled by default */ 1649693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1650ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell ctx->Driver.UpdateState = xmesa_update_state; 1651a96308c37db0bc0086a017d318bc3504aa5f0b1aKeith Whitwell 1652ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell /* Initialize the software rasterizer and helper modules. 1653ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell */ 1654ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell _swrast_CreateContext( ctx ); 1655cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _ac_CreateContext( ctx ); 165623caf20169ac38436ee9c13914f1d6aa7cf6bb5eKeith Whitwell _tnl_CreateContext( ctx ); 1657cab974cf6c2dbfbf5dd5d291e1aae0f8eeb34290Keith Whitwell _swsetup_CreateContext( ctx ); 1658ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell 1659ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell xmesa_register_swrast_functions( ctx ); 1660ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell 1661709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell /* Set up some constant pointers: 1662709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell */ 1663709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell xmesa_init_pointers( ctx ); 1664709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell 1665709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell 16665e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen /* Run the config file 1667ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell */ 16689e351d52ae52927fbe505e8808e70de3e646be79Brian Paul _mesa_read_config_file( ctx ); 1669ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell 16707a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell 16717a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell return c; 1672693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1673693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1674693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1675693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1676693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1677693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaDestroyContext( XMesaContext c ) 1678693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1679693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 1680693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_buffer && c->xm_buffer->FXctx) 1681693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxMesaDestroyContext(c->xm_buffer->FXctx); 1682693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1683ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell if (c->gl_ctx) { 1684ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell _swsetup_DestroyContext( c->gl_ctx ); 1685ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell _swrast_DestroyContext( c->gl_ctx ); 1686709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell _tnl_DestroyContext( c->gl_ctx ); 1687709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell _ac_DestroyContext( c->gl_ctx ); 1688b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_destroy_context( c->gl_ctx ); 1689ec0585883a85a495d94e24970d64e5d6fc889147Keith Whitwell } 1690693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1691693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Disassociate old buffer with this context */ 1692693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_buffer) 1693693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer->xm_context = NULL; 1694693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1695693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Destroy any buffers which are using this context. If we don't 1696693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * we may have dangling references. Hmm, maybe we should just 1697693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * set the buffer's context pointer to NULL instead of deleting it? 1698693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Let's see if we get any bug reports... 1699693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * This contributed by Doug Rabson <dfr@calcaphon.com> 1700693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1701693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 1702693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b, next; 1703693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b = XMesaBufferList; b; b = next) { 1704693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul next = b->Next; 1705693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->pixmap_flag) { 1706693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1707693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync(b->display, False); 1708693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1709693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_context == c) { 1710693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* found a context created for this context */ 1711693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyBuffer( b ); 1712693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1713693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1714693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1715693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1716693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1717693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE( c ); 1718693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1719693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1720693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1721693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1722693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1723693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * XXX this isn't a public function! It's a hack for the 3Dfx driver. 1724693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Create a new XMesaBuffer from an X window. 1725693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: v - the XMesaVisual 1726693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * w - the window 1727693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * c - the context 1728693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: new XMesaBuffer or NULL if error 1729693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1730693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaCreateWindowBuffer2( XMesaVisual v, XMesaWindow w, 1731693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext c ) 1732693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1733693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifndef XFree86Server 1734693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XWindowAttributes attr; 1735693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1736693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 1737693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul char *fxEnvVar; 1738693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1739693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int client = 0; 1740693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1741693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b = alloc_xmesa_buffer(); 1742693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b) { 1743693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1744693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1745693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1746693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) c; 1747693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1748693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1749693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client = CLIENT_ID(((XMesaDrawable)w)->id); 1750693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1751693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1752693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(v); 1753693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1754693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 17557a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell if (GET_VISUAL_DEPTH(v) != ((XMesaDrawable)w)->depth) { 1756693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 17577a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell XGetWindowAttributes( v->display, w, &attr ); 17587a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell 17597a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell if (GET_VISUAL_DEPTH(v) != attr.depth) { 1760693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1761693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) { 1762693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "XMesaCreateWindowBuffer: depth mismatch between visual and window!\n"); 1763693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1764693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1765693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1766693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1767693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_context = NULL; /* Associate no context with this buffer */ 1768693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1769693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual = v; 1770693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->pixmap_flag = GL_FALSE; 1771693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->display = v->display; 1772693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1773693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cmap = (ColormapPtr)LookupIDByType(wColormap(w), RT_COLORMAP); 1774693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 1775693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (attr.colormap) { 1776693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cmap = attr.colormap; 1777693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1778693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1779693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (getenv("MESA_DEBUG")) { 1780693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr, "Window %u has no colormap!\n", (unsigned int) w); 1781693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1782693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* this is weird, a window w/out a colormap!? */ 1783693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* OK, let's just allocate a new one and hope for the best */ 1784693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cmap = XCreateColormap(v->display, w, attr.visual, AllocNone); 1785693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1786693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1787693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1788693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* determine back buffer implementation */ 17891832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (v->mesa_visual.doubleBufferMode) { 1790693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->ximage_flag) { 1791693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = BACK_XIMAGE; 1792693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1793693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1794693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = BACK_PIXMAP; 1795693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1796693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1797693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1798693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = 0; 1799693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1800693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 18011832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul _mesa_initialize_framebuffer(&b->mesa_buffer, 18021832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul &v->mesa_visual, 18031832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.depthBits > 0, 18041832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.stencilBits > 0, 18051832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.accumRedBits > 0, 18061832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.alphaBits > 0 ); 1807693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 18081832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (!initialize_visual_and_buffer( client, v, b, v->mesa_visual.rgbMode, 1809693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (XMesaDrawable)w, b->cmap )) { 1810693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul free_xmesa_buffer(client, b); 1811693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1812693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1813693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1814693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 1815693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxEnvVar = getenv("MESA_GLX_FX"); 1816693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (fxEnvVar) { 18177a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell if (fxEnvVar[0]!='d') { 18187a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell int attribs[100]; 18197a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell int numAttribs = 0; 18207a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell int hw; 18211832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (v->mesa_visual.depthBits > 0) { 18227a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = FXMESA_DEPTH_SIZE; 18237a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = 1; 18247a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18251832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (v->mesa_visual.doubleBufferMode) { 18267a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = FXMESA_DOUBLEBUFFER; 18277a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18281832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (v->mesa_visual.accumRedBits > 0) { 18297a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = FXMESA_ACCUM_SIZE; 18301832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul attribs[numAttribs++] = v->mesa_visual.accumRedBits; 18317a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18321832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (v->mesa_visual.stencilBits > 0) { 18337a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = FXMESA_STENCIL_SIZE; 18341832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul attribs[numAttribs++] = v->mesa_visual.stencilBits; 18357a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18361832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (v->mesa_visual.alphaBits > 0) { 18377a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = FXMESA_ALPHA_SIZE; 18387a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = 1; 18397a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18407a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell if (c->gl_ctx) { 1841693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#define FXMESA_SHARE_CONTEXT 990099 /* keep in sync with fxapi.c! */ 18427a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = FXMESA_SHARE_CONTEXT; 18437a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = (int) c->gl_ctx; 18447a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18457a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell attribs[numAttribs++] = FXMESA_NONE; 18467a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell 18477a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell if ((hw = fxQueryHardware())==GR_SSTTYPE_VOODOO) { 18487a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell b->FXctx = fxMesaCreateBestContext(0, b->width, b->height, attribs); 18497a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell if ((v->undithered_pf!=PF_INDEX) && (b->backimage)) { 18507a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell b->FXisHackUsable = b->FXctx ? GL_TRUE : GL_FALSE; 18517a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell if (fxEnvVar[0]=='w' || fxEnvVar[0]=='W') 18527a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell b->FXwindowHack = b->FXctx ? GL_TRUE : GL_FALSE; 18537a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell else 18547a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell b->FXwindowHack = GL_FALSE; 18557a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18567a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18577a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell else { 18587a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell if (fxEnvVar[0]=='w' || fxEnvVar[0]=='W') 18597a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell b->FXctx = fxMesaCreateContext(w, GR_RESOLUTION_NONE, 18607a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell GR_REFRESH_75Hz, attribs); 18617a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell else 18627a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell b->FXctx = fxMesaCreateBestContext(0, b->width, b->height, attribs); 18637a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell b->FXisHackUsable = GL_FALSE; 18647a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell b->FXwindowHack = GL_FALSE; 18657a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 18667a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell /* 18677a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell fprintf(stderr, 18687a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell "voodoo %d, wid %d height %d hack: usable %d active %d\n", 18697a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell hw, b->width, b->height, b->FXisHackUsable, b->FXwindowHack); 18707a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell */ 18717a1f3a37a10b162b067239dafa19fc6865a41f14Keith Whitwell } 1872693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1873693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1874693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr,"WARNING: This Mesa Library includes the Glide driver but\n"); 1875693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr," you have not defined the MESA_GLX_FX env. var.\n"); 1876693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr," (check the README.3DFX file for more information).\n\n"); 1877693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fprintf(stderr," you can disable this message with a 'export MESA_GLX_FX=disable'.\n"); 1878693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1879693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1880693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1881693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 1882693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1883693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1884693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1885693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaCreateWindowBuffer( XMesaVisual v, XMesaWindow w ) 1886693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1887693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return XMesaCreateWindowBuffer2( v, w, NULL ); 1888693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1889693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1890693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1891693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1892693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Create a new XMesaBuffer from an X pixmap. 1893693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: v - the XMesaVisual 1894693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * p - the pixmap 1895693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * cmap - the colormap, may be 0 if using a TrueColor or DirectColor 1896693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * visual for the pixmap 1897693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: new XMesaBuffer or NULL if error 1898693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1899693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaCreatePixmapBuffer( XMesaVisual v, 1900693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPixmap p, XMesaColormap cmap ) 1901693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1902693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int client = 0; 1903693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b = alloc_xmesa_buffer(); 1904693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b) { 1905693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1906693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1907693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1908693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1909693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1910693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client = CLIENT_ID(((XMesaDrawable)p)->id); 1911693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1912693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1913693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(v); 1914693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1915693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_context = NULL; /* Associate no context with this buffer */ 1916693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1917693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual = v; 1918693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->pixmap_flag = GL_TRUE; 1919693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->display = v->display; 1920693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cmap = cmap; 1921693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1922693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* determine back buffer implementation */ 19231832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (v->mesa_visual.doubleBufferMode) { 1924693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (v->ximage_flag) { 1925693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = BACK_XIMAGE; 1926693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1927693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1928693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = BACK_PIXMAP; 1929693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1930693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1931693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 1932693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->db_state = 0; 1933693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1934693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 19351832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul _mesa_initialize_framebuffer(&b->mesa_buffer, 19361832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul &v->mesa_visual, 19371832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.depthBits > 0, 19381832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.stencilBits > 0, 19391832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.accumRedBits + 19401832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.accumGreenBits + 19411832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.accumBlueBits > 0, 19421832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul v->mesa_visual.alphaBits > 0 ); 1943693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 19441832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (!initialize_visual_and_buffer(client, v, b, v->mesa_visual.rgbMode, 1945693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (XMesaDrawable)p, cmap)) { 1946693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul free_xmesa_buffer(client, b); 1947693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 1948693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1949693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1950693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 1951693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 1952693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1953693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1954693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1955693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 1956693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Deallocate an XMesaBuffer structure and all related info. 1957693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 1958693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaDestroyBuffer( XMesaBuffer b ) 1959693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 1960693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul int client = 0; 1961693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1962693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 1963693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->frontbuffer) 1964693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul client = CLIENT_ID(b->frontbuffer->id); 1965693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1966693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1967c19d783e0715ac01ad4d3fd0705500d2bf6f7039Brian Paul if (b->gc) XMesaFreeGC( b->xm_visual->display, b->gc ); 1968693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->cleargc) XMesaFreeGC( b->xm_visual->display, b->cleargc ); 1969693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1970693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 1971693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(USE_XSHM) && !defined(XFree86Server) 1972693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm) { 1973693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmDetach( b->xm_visual->display, &b->shminfo ); 1974693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDestroyImage( b->backimage ); 1975693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul shmdt( b->shminfo.shmaddr ); 1976693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1977693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 1978693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 1979693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->backimage ); 1980693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1981693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backpixmap) { 1982693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaFreePixmap( b->xm_visual->display, b->backpixmap ); 1983693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_visual->hpcr_clear_flag) { 1984693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaFreePixmap( b->xm_visual->display, 1985693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_visual->hpcr_clear_pixmap ); 1986693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->xm_visual->hpcr_clear_ximage ); 1987693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1988693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1989693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->rowimage) { 1990693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FREE( b->rowimage->data ); 1991693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->rowimage->data = NULL; 1992693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyImage( b->rowimage ); 1993693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 1994693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1995693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_context) 1996693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->xm_context->xm_buffer = NULL; 1997693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 1998693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul free_xmesa_buffer(client, b); 1999693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2000693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2001693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2002693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2003693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2004693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Bind buffer b to context c and make c the current rendering context. 2005693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2006693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaMakeCurrent( XMesaContext c, XMesaBuffer b ) 2007693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2008693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return XMesaMakeCurrent2( c, b, b ); 2009693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2010693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2011693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2012693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2013693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Bind buffer b to context c and make c the current rendering context. 2014693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2015693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaMakeCurrent2( XMesaContext c, XMesaBuffer drawBuffer, 2016693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer readBuffer ) 2017693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2018693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c) { 2019693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!drawBuffer || !readBuffer) 2020693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; /* must specify buffers! */ 2021693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2022693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2023693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (drawBuffer->FXctx) { 2024693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxMesaMakeCurrent(drawBuffer->FXctx); 2025693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2026693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Disassociate old buffer from this context */ 2027693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_buffer) 2028693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer->xm_context = NULL; 2029693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2030693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Associate the context with this buffer */ 2031693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul drawBuffer->xm_context = c; 2032693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2033693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer = drawBuffer; 2034693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_read_buffer = readBuffer; 2035693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->use_read_buffer = (drawBuffer != readBuffer); 2036693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2037693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2038693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2039693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2040b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul if (c->gl_ctx == _mesa_get_current_context() 2041693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && c->xm_buffer == drawBuffer 2042693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && c->xm_read_buffer == readBuffer 2043693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && c->xm_buffer->wasCurrent) { 2044693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* same context and buffer, do nothing */ 2045693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2046693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2047693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2048693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Disassociate old buffer with this context */ 2049693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->xm_buffer) 2050693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer->xm_context = NULL; 2051693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul drawBuffer->xm_context = c; /* Associate the context with this buffer */ 2052693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2053693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer = drawBuffer; 2054693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_read_buffer = readBuffer; 2055693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->use_read_buffer = (drawBuffer != readBuffer); 2056693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 20571832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul _mesa_make_current2(c->gl_ctx, 20581832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul &drawBuffer->mesa_buffer, 20591832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul &readBuffer->mesa_buffer); 2060693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2061693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c->gl_ctx->Viewport.Width == 0) { 2062693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* initialize viewport to window size */ 2063693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _mesa_Viewport( 0, 0, drawBuffer->width, drawBuffer->height ); 2064693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->gl_ctx->Scissor.Width = drawBuffer->width; 2065693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->gl_ctx->Scissor.Height = drawBuffer->height; 2066693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2067693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 20681832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (c->xm_visual->mesa_visual.rgbMode) { 2069693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 2070693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Must recompute and set these pixel values because colormap 2071693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * can be different for different windows. 2072693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2073693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearpixel = xmesa_color_to_pixel( c, 2074693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearcolor[0], 2075693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearcolor[1], 2076693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearcolor[2], 2077693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->clearcolor[3], 2078693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_visual->undithered_pf); 2079693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaSetForeground(c->display, c->xm_buffer->cleargc, c->clearpixel); 2080693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2081693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2082693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Solution to Stephane Rehel's problem with glXReleaseBuffersMESA(): */ 2083693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul c->xm_buffer->wasCurrent = GL_TRUE; 2084693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2085693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2086693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Detach */ 2087b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_make_current2( NULL, NULL, NULL ); 2088693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2089693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2090693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2091693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2092693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2093693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2094693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Unbind the context c from its buffer. 2095693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2096693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaUnbindContext( XMesaContext c ) 2097693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2098693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* A no-op for XFree86 integration purposes */ 2099693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2100693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2101693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2102693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2103693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaContext XMesaGetCurrentContext( void ) 2104693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2105693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2106693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctx) { 2107693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; 2108693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return xmesa; 2109693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2110693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2111693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2112693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2113693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2114693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2115693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2116693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaGetCurrentBuffer( void ) 2117693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2118693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2119693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctx) { 2120693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; 2121693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return xmesa->xm_buffer; 2122693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2123693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2124693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2125693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2126693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2127693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2128693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2129693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* New in Mesa 3.1 */ 2130693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaGetCurrentReadBuffer( void ) 2131693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2132693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2133693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctx) { 2134693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; 2135693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return xmesa->xm_buffer; 2136693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2137693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2138693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2139693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2140693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2141693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2142693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2143693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaForceCurrent(XMesaContext c) 2144693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2145693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c) { 2146b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul if (c->gl_ctx != _mesa_get_current_context()) { 21471832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul _mesa_make_current(c->gl_ctx, &c->xm_buffer->mesa_buffer); 2148693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2149693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2150693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2151b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_make_current(NULL, NULL); 2152693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2153693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2154693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2155693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2156693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2157693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaLoseCurrent(XMesaContext c) 2158693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2159693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) c; 2160b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul _mesa_make_current(NULL, NULL); 2161693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2162693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2163693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2164693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2165693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2166693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Switch 3Dfx support hack between window and full-screen mode. 2167693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2168693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaSetFXmode( GLint mode ) 2169693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2170693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2171693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul const char *fx = getenv("MESA_GLX_FX"); 2172693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (fx && fx[0] != 'd') { 2173693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2174693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GrHwConfiguration hw; 2175693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!FX_grSstQueryHardware(&hw)) { 2176693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*fprintf(stderr, "!grSstQueryHardware\n");*/ 2177693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2178693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2179693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (hw.num_sst < 1) { 2180693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*fprintf(stderr, "hw.num_sst < 1\n");*/ 2181693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2182693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2183693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ctx) { 2184693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; 2185693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (mode == XMESA_FX_WINDOW) { 2186693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xmesa->xm_buffer->FXisHackUsable) { 2187693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FX_grSstControl(GR_CONTROL_DEACTIVATE); 2188693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa->xm_buffer->FXwindowHack = GL_TRUE; 2189693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2190693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2191693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2192693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (mode == XMESA_FX_FULLSCREEN) { 2193693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FX_grSstControl(GR_CONTROL_ACTIVATE); 2194693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa->xm_buffer->FXwindowHack = GL_FALSE; 2195693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2196693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2197693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2198693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Error: Bad mode value */ 2199693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2200693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2201693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2202693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*fprintf(stderr, "fallthrough\n");*/ 2203693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2204693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) mode; 2205693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2206693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2207693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2208693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2209693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2210693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2211693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2212693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2213693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Read image from VooDoo frame buffer into X/Mesa's back XImage. 2214693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2215693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulstatic void FXgetImage( XMesaBuffer b ) 2216693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2217693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul static unsigned short pixbuf[MAX_WIDTH]; 221801915e90e6912f06d43d443a09157f7bbc96ddc5Brian Paul GLuint x, y; 221901915e90e6912f06d43d443a09157f7bbc96ddc5Brian Paul int xpos, ypos; 2220693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaWindow root; 2221693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned int bw, depth, width, height; 2222693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaContext xmesa = (XMesaContext) b->xm_context->gl_ctx->DriverCtx; 2223693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2224693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul assert(xmesa->xm_buffer->FXctx); 2225693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2226693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 2227693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x = b->frontbuffer->x; 2228693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul y = b->frontbuffer->y; 2229693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul width = b->frontbuffer->width; 2230693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul height = b->frontbuffer->height; 2231693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul depth = b->frontbuffer->depth; 2232693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2233693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XGetGeometry( xmesa->xm_visual->display, b->frontbuffer, 223401915e90e6912f06d43d443a09157f7bbc96ddc5Brian Paul &root, &xpos, &ypos, &width, &height, &bw, &depth); 2235693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2236693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->width != width || b->height != height) { 2237693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width = MIN2((int)width, xmesa->xm_buffer->FXctx->width); 2238693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->height = MIN2((int)height, xmesa->xm_buffer->FXctx->height); 2239693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->width & 1) 2240693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width--; /* prevent odd width */ 2241693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa_alloc_back_buffer( b ); 2242693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2243693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2244693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbWriteColorFormat(GR_COLORFORMAT_ARGB); 2245693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (xmesa->xm_visual->undithered_pf==PF_5R6G5B) { 2246693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Special case: 16bpp RGB */ 2247693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbReadRegion( GR_BUFFER_FRONTBUFFER, /* src buffer */ 2248693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, xmesa->xm_buffer->FXctx->height - b->height, /*pos*/ 2249693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width, b->height, /* size */ 2250693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->width * sizeof(GLushort), /* stride */ 2251693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage->data); /* dest buffer */ 2252693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2253693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (xmesa->xm_visual->dithered_pf==PF_DITHER 2254693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul && GET_VISUAL_DEPTH(xmesa->xm_visual)==8) { 2255693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Special case: 8bpp RGB */ 2256693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (y=0;y<b->height;y++) { 2257693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLubyte *ptr = (GLubyte*) xmesa->xm_buffer->backimage->data 2258693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul + xmesa->xm_buffer->backimage->bytes_per_line * y; 2259693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XDITHER_SETUP(y); 2260693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2261693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* read row from 3Dfx frame buffer */ 2262693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbReadRegion( GR_BUFFER_FRONTBUFFER, 2263693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, xmesa->xm_buffer->FXctx->height-(b->height-y), 22645e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen b->width, 1, 2265693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 2266693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul pixbuf ); 2267693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2268693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* write to XImage back buffer */ 2269693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (x=0;x<b->width;x++) { 2270693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLubyte r = (pixbuf[x] & 0xf800) >> 8; 2271693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLubyte g = (pixbuf[x] & 0x07e0) >> 3; 2272693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLubyte b = (pixbuf[x] & 0x001f) << 3; 2273693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *ptr++ = XDITHER( x, r, g, b); 2274693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2275693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2276693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2277693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2278693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* General case: slow! */ 2279693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (y=0;y<b->height;y++) { 2280693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* read row from 3Dfx frame buffer */ 2281693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbReadRegion( GR_BUFFER_FRONTBUFFER, 2282693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, xmesa->xm_buffer->FXctx->height-(b->height-y), 22835e3bc0c2a2bcdf59949410f94c9b705fc1281ce8Jouk Jansen b->width, 1, 2284693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 2285693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul pixbuf ); 2286693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2287693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* write to XImage back buffer */ 2288693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (x=0;x<b->width;x++) { 2289693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutPixel(b->backimage,x,y, 2290693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul xmesa_color_to_pixel(xmesa, 2291693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (pixbuf[x] & 0xf800) >> 8, 2292693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (pixbuf[x] & 0x07e0) >> 3, 2293693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (pixbuf[x] & 0x001f) << 3, 2294693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0xff, xmesa->pixelformat)); 2295693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2296693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2297693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2298693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul grLfbWriteColorFormat(GR_COLORFORMAT_ABGR); 2299693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2300693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2301693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2302693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2303693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2304693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Copy the back buffer to the front buffer. If there's no back buffer 2305693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * this is a no-op. 2306693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2307693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaSwapBuffers( XMesaBuffer b ) 2308693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2309693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2310693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2311693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* If we're swapping the buffer associated with the current context 2312693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * we have to flush any pending rendering commands first. 2313693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2314693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_context && b->xm_context->gl_ctx == ctx) 2315693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _mesa_swapbuffers(ctx); 2316693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2317693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state) { 2318693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2319693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->FXctx) { 2320693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxMesaSwapBuffers(); 2321693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2322693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->FXwindowHack) 2323693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FXgetImage(b); 2324693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 2325693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return; 2326693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2327693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2328693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 2329693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy Ximage from host's memory to server's window */ 2330693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(USE_XSHM) && !defined(XFree86Server) 2331693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm) { 2332693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ 2333693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmPutImage( b->xm_visual->display, b->frontbuffer, 2334693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2335693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, 0, 0, 2336693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0, b->width, b->height, False ); 2337693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ 2338693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2339693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 2340693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2341693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2342693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ 2343693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutImage( b->xm_visual->display, b->frontbuffer, 2344693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2345693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, 0, 0, 2346693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0, b->width, b->height ); 2347693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ 2348693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2349693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2350693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2351693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy pixmap to window on server */ 2352693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ 2353693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaCopyArea( b->xm_visual->display, 2354693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backpixmap, /* source drawable */ 2355693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->frontbuffer, /* dest. drawable */ 2356693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2357693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0, b->width, b->height, /* source region */ 2358693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 0, 0 /* dest region */ 2359693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ); 2360693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ 2361693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2362693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2363655ba5d9927187e76b66f5886d090624dc4b1dd9Brian Paul#if !defined(XFree86Server) 2364693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync( b->xm_visual->display, False ); 2365693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2366693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2367693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2368693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2369693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2370693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2371693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Copy sub-region of back buffer to front buffer 2372693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2373693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaCopySubBuffer( XMesaBuffer b, int x, int y, int width, int height ) 2374693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2375693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GET_CURRENT_CONTEXT(ctx); 2376693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2377693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* If we're swapping the buffer associated with the current context 2378693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * we have to flush any pending rendering commands first. 2379693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2380693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->xm_context->gl_ctx == ctx) 2381693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul _mesa_swapbuffers(ctx); 2382693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2383693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state) { 2384536ede7e00ff5e2f10be3bf9b60cd2cfa80b3518Brian Paul int yTop = b->height - y - height; 2385693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef FX 2386693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->FXctx) { 2387693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul fxMesaSwapBuffers(); 2388693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->FXwindowHack) 2389693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul FXgetImage(b); 2390693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 2391693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return; 2392693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2393693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2394693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->backimage) { 2395693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy Ximage from host's memory to server's window */ 2396693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#if defined(USE_XSHM) && !defined(XFree86Server) 2397693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->shm) { 2398693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* XXX assuming width and height aren't too large! */ 2399693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XShmPutImage( b->xm_visual->display, b->frontbuffer, 2400693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2401693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, x, yTop, 2402693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x, yTop, width, height, False ); 2403693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* wait for finished event??? */ 2404693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2405693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else 2406693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2407693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2408693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* XXX assuming width and height aren't too large! */ 2409693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPutImage( b->xm_visual->display, b->frontbuffer, 2410693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2411693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backimage, x, yTop, 2412693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x, yTop, width, height ); 2413693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2414693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2415693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2416693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* Copy pixmap to window on server */ 2417693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaCopyArea( b->xm_visual->display, 2418693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->backpixmap, /* source drawable */ 2419693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->frontbuffer, /* dest. drawable */ 2420693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul b->cleargc, 2421693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x, yTop, width, height, /* source region */ 2422693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul x, yTop /* dest region */ 2423693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul ); 2424693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2425693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2426693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2427693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2428693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2429693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2430693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return a pointer to the XMesa backbuffer Pixmap or XImage. This function 2431693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * is a way to get "under the hood" of X/Mesa so one can manipulate the 2432693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * back buffer directly. 2433693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Output: pixmap - pointer to back buffer's Pixmap, or 0 2434693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * ximage - pointer to back buffer's XImage, or NULL 2435693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE = context is double buffered 2436693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * GL_FALSE = context is single buffered 2437693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2438693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaGetBackBuffer( XMesaBuffer b, 2439693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaPixmap *pixmap, 2440693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaImage **ximage ) 2441693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2442693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->db_state) { 2443693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (pixmap) *pixmap = b->backpixmap; 2444693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (ximage) *ximage = b->backimage; 2445693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2446693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2447693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2448693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *pixmap = 0; 2449693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *ximage = NULL; 2450693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2451693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2452693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2453693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2454693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2455693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2456693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return the depth buffer associated with an XMesaBuffer. 2457693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Input: b - the XMesa buffer handle 2458693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Output: width, height - size of buffer in pixels 2459693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * bytesPerValue - bytes per depth value (2 or 4) 2460693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * buffer - pointer to depth buffer values 2461693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Return: GL_TRUE or GL_FALSE to indicate success or failure. 2462693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2463693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulGLboolean XMesaGetDepthBuffer( XMesaBuffer b, GLint *width, GLint *height, 2464693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint *bytesPerValue, void **buffer ) 2465693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 24661832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul if (!b->mesa_buffer.DepthBuffer) { 2467693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *width = 0; 2468693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *height = 0; 2469693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *bytesPerValue = 0; 2470693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *buffer = 0; 2471693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_FALSE; 2472693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2473693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 24741832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul *width = b->mesa_buffer.Width; 24751832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul *height = b->mesa_buffer.Height; 2476693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul *bytesPerValue = sizeof(GLdepth); 24771832f1cc86758fdcbd122edd5bf9e7a29ccade20Brian Paul *buffer = b->mesa_buffer.DepthBuffer; 2478693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GL_TRUE; 2479693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2480693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2481693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2482693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2483693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaFlush( XMesaContext c ) 2484693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2485693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (c && c->xm_visual) { 2486693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 2487693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* NOT_NEEDED */ 2488693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2489693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync( c->xm_visual->display, False ); 2490693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2491693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2492693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2493693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2494693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2495693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2496693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulconst char *XMesaGetString( XMesaContext c, int name ) 2497693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2498693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul (void) c; 2499693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (name==XMESA_VERSION) { 2500693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return "3.1"; 2501693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2502693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else if (name==XMESA_EXTENSIONS) { 2503693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return ""; 2504693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2505693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul else { 2506693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 2507693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2508693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2509693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2510693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2511693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2512693f81be4c16bcec4e017e9b3189f518d157d85fBrian PaulXMesaBuffer XMesaFindBuffer( XMesaDisplay *dpy, XMesaDrawable d ) 2513693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2514693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b; 2515693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b=XMesaBufferList; b; b=b->Next) { 2516693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (b->frontbuffer==d && b->display==dpy) { 2517693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return b; 2518693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2519693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2520693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return NULL; 2521693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2522693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2523693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2524693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2525693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul/* 2526693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Look for XMesaBuffers whose X window has been destroyed. 2527693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul * Deallocate any such XMesaBuffers. 2528693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul */ 2529693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaGarbageCollect( void ) 2530693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2531693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBuffer b, next; 2532693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul for (b=XMesaBufferList; b; b=next) { 2533693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul next = b->Next; 2534693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!b->pixmap_flag) { 2535693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#ifdef XFree86Server 2536693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* NOT_NEEDED */ 2537693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#else 2538693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XSync(b->display, False); 2539693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul if (!window_exists( b->display, b->frontbuffer )) { 2540693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* found a dead window, free the ancillary info */ 2541693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyBuffer( b ); 2542693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2543693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul#endif 2544693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2545693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2546693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2547693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2548693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2549693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulvoid XMesaReset( void ) 2550693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2551693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul while (XMesaBufferList) 2552693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaDestroyBuffer(XMesaBufferList); 2553693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2554693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul XMesaBufferList = NULL; 2555693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2556693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2557693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2558693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paulunsigned long XMesaDitherColor( XMesaContext xmesa, GLint x, GLint y, 2559693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLfloat red, GLfloat green, 2560693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLfloat blue, GLfloat alpha ) 2561693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul{ 2562693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint r = (GLint) (red * 255.0F); 2563693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint g = (GLint) (green * 255.0F); 2564693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint b = (GLint) (blue * 255.0F); 2565693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul GLint a = (GLint) (alpha * 255.0F); 2566693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2567693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul switch (xmesa->pixelformat) { 2568693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_INDEX: 2569693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2570693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_TRUECOLOR: 2571693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2572693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long p; 2573693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PACK_TRUECOLOR( p, r, g, b ); 2574693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return p; 2575693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2576693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8A8B8G8R: 2577693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_8A8B8G8R( r, g, b, a ); 2578693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_8R8G8B: 2579693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_8R8G8B( r, g, b ); 2580693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_5R6G5B: 2581693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return PACK_5R6G5B( r, g, b ); 2582693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_DITHER: 2583693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2584693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul DITHER_SETUP; 2585693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return DITHER( x, y, r, g, b ); 2586693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2587693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_1BIT: 2588693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* 382 = (3*255)/2 */ 2589693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return ((r+g+b) > 382) ^ xmesa->xm_visual->bitFlip; 2590693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_HPCR: 2591693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return DITHER_HPCR(x, y, r, g, b); 2592693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_LOOKUP: 2593693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2594693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul LOOKUP_SETUP; 2595693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return LOOKUP( r, g, b ); 2596693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2597693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_GRAYSCALE: 2598693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return GRAY_RGB( r, g, b ); 2599693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_DITHER_5R6G5B: 2600693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul /* fall through */ 2601693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul case PF_TRUEDITHER: 2602693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul { 2603693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul unsigned long p; 2604693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul PACK_TRUEDITHER(p, x, y, r, g, b); 2605693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return p; 2606693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2607693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul default: 260808836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_problem(NULL, "Bad pixel format in XMesaDitherColor"); 2609693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul } 2610693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul return 0; 2611693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul} 2612693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2613693f81be4c16bcec4e017e9b3189f518d157d85fBrian Paul 2614