xm_api.c revision e968975cb57eb854769292f7c6ff773c64a386c3
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Mesa 3-D graphics library 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Version: 7.1 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Permission is hereby granted, free of charge, to any person obtaining a 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * copy of this software and associated documentation files (the "Software"), 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * to deal in the Software without restriction, including without limitation 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the rights to use, copy, modify, merge, publish, distribute, sublicense, 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * and/or sell copies of the Software, and to permit persons to whom the 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Software is furnished to do so, subject to the following conditions: 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The above copyright notice and this permission notice shall be included 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * in all copies or substantial portions of the Software. 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \file xm_api.c 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * All the XMesa* API functions. 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * NOTES: 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The window coordinate system origin (0,0) is in the lower-left corner 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * of the window. X11's window coordinate origin is in the upper-left 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * corner of the window. Therefore, most drawing functions in this 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * file have to flip Y coordinates. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Byte swapping: If the Mesa host and the X display use a different 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * byte order then there's some trickiness to be aware of when using 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * XImages. The byte ordering used for the XImage is that of the X 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * display, not the Mesa host. 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The color-to-pixel encoding for True/DirectColor must be done 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * according to the display's visual red_mask, green_mask, and blue_mask. 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * If XPutPixel is used to put a pixel into an XImage then XPutPixel will 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * do byte swapping if needed. If one wants to directly "poke" the pixel 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * into the XImage's buffer then the pixel must be byte swapped first. 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef __CYGWIN__ 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#undef WIN32 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#undef __WIN32__ 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "xm_api.h" 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "xm_st.h" 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "pipe/p_defines.h" 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "pipe/p_screen.h" 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "pipe/p_context.h" 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "xm_public.h" 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <GL/glx.h> 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Driver interface routines, set up by xlib backend on library 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * _init(). These are global in the same way that function names are 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * global. 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static struct xm_driver driver; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static struct st_api *stapi; 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Default strict invalidate to false. This means we will not call 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * XGetGeometry after every swapbuffers, which allows swapbuffers to 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * remain asynchronous. For apps running at 100fps with synchronous 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * swapping, a 10% boost is typical. For gears, I see closer to 20% 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * speedup. 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Note that the work of copying data on swapbuffers doesn't disappear 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * - this change just allows the X server to execute the PutImage 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * asynchronously without us effectively blocked until its completion. 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This speeds up even llvmpipe's threaded rasterization as the 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * swapbuffers operation was a large part of the serial component of 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * an llvmpipe frame. 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The downside of this is correctness - applications which don't call 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * glViewport on window resizes will get incorrect rendering. A 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * better solution would be to have per-frame but asynchronous 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * invalidation. Xcb almost looks as if it could provide this, but 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the API doesn't seem to quite be there. 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)boolean xmesa_strict_invalidate = FALSE; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void xmesa_set_driver( const struct xm_driver *templ ) 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) driver = *templ; 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stapi = driver.create_st_api(); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmesa_strict_invalidate = 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) debug_get_bool_option("XMESA_STRICT_INVALIDATE", FALSE); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * XXX replace this with a linked list, or better yet, try to attach the 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * gallium/mesa extra bits to the X Display object with XAddExtension(). 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define MAX_DISPLAYS 10 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static struct xmesa_display Displays[MAX_DISPLAYS]; 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int NumDisplays = 0; 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)xmesa_get_param(struct st_manager *smapi, 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum st_manager_param param) 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch(param) { 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case ST_MANAGER_BROKEN_INVALIDATE: 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return !xmesa_strict_invalidate; 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static XMesaDisplay 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)xmesa_init_display( Display *display ) 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pipe_static_mutex(init_mutex); 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaDisplay xmdpy; 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i; 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pipe_mutex_lock(init_mutex); 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Look for XMesaDisplay which corresponds to 'display' */ 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (i = 0; i < NumDisplays; i++) { 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (Displays[i].display == display) { 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Found it */ 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pipe_mutex_unlock(init_mutex); 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return &Displays[i]; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Create new XMesaDisplay */ 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(NumDisplays < MAX_DISPLAYS); 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy = &Displays[NumDisplays]; 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NumDisplays++; 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!xmdpy->display && display) { 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->display = display; 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->screen = driver.create_pipe_screen(display); 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->smapi = CALLOC_STRUCT(st_manager); 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (xmdpy->smapi) { 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->smapi->screen = xmdpy->screen; 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->smapi->get_param = xmesa_get_param; 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (xmdpy->screen && xmdpy->smapi) { 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pipe_mutex_init(xmdpy->mutex); 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (xmdpy->screen) { 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->screen->destroy(xmdpy->screen); 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->screen = NULL; 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (xmdpy->smapi) { 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FREE(xmdpy->smapi); 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->smapi = NULL; 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy->display = NULL; 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!xmdpy->display || xmdpy->display != display) 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmdpy = NULL; 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pipe_mutex_unlock(init_mutex); 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return xmdpy; 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/**********************************************************************/ 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/***** X Utility Functions *****/ 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/**********************************************************************/ 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Return the host's byte order as LSBFirst or MSBFirst ala X. 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int host_byte_order( void ) 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i = 1; 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char *cptr = (char *) &i; 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (*cptr==1) ? LSBFirst : MSBFirst; 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Return the true number of bits per pixel for XImages. 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * For example, if we request a 24-bit deep visual we may actually need/get 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 32bpp XImages. This function returns the appropriate bpp. 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Input: dpy - the X display 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * visinfo - desribes the visual to be used for XImages 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Return: true number of bits per pixel for XImages 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bits_per_pixel( XMesaVisual xmv ) 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Display *dpy = xmv->display; 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XVisualInfo * visinfo = xmv->visinfo; 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XImage *img; 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int bitsPerPixel; 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Create a temporary XImage */ 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) img = XCreateImage( dpy, visinfo->visual, visinfo->depth, 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ZPixmap, 0, /*format, offset*/ 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (char*) MALLOC(8), /*data*/ 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1, 1, /*width, height*/ 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 32, /*bitmap_pad*/ 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 0 /*bytes_per_line*/ 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ); 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(img); 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* grab the bits/pixel value */ 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bitsPerPixel = img->bits_per_pixel; 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* free the XImage */ 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) free( img->data ); 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) img->data = NULL; 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XDestroyImage( img ); 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return bitsPerPixel; 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Determine if a given X window ID is valid (window exists). 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Do this by calling XGetWindowAttributes() for the window and 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * checking if we catch an X error. 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Input: dpy - the display 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * win - the window to check for existance 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Return: GL_TRUE - window exists 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * GL_FALSE - window doesn't exist 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static GLboolean WindowExistsFlag; 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int window_exists_err_handler( Display* dpy, XErrorEvent* xerr ) 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (void) dpy; 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (xerr->error_code == BadWindow) { 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WindowExistsFlag = GL_FALSE; 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return 0; 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static GLboolean window_exists( Display *dpy, Window win ) 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XWindowAttributes wa; 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int (*old_handler)( Display*, XErrorEvent* ); 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WindowExistsFlag = GL_TRUE; 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) old_handler = XSetErrorHandler(window_exists_err_handler); 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XGetWindowAttributes( dpy, win, &wa ); /* dummy request */ 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XSetErrorHandler(old_handler); 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return WindowExistsFlag; 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static Status 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)get_drawable_size( Display *dpy, Drawable d, uint *width, uint *height ) 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Window root; 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Status stat; 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int xpos, ypos; 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned int w, h, bw, depth; 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stat = XGetGeometry(dpy, d, &root, &xpos, &ypos, &w, &h, &bw, &depth); 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *width = w; 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *height = h; 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return stat; 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Return the size of the window (or pixmap) that corresponds to the 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * given XMesaBuffer. 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param width returns width in pixels 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param height returns height in pixels 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)xmesa_get_window_size(Display *dpy, XMesaBuffer b, 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLuint *width, GLuint *height) 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaDisplay xmdpy = xmesa_init_display(dpy); 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Status stat; 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pipe_mutex_lock(xmdpy->mutex); 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) stat = get_drawable_size(dpy, b->ws.drawable, width, height); 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pipe_mutex_unlock(xmdpy->mutex); 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!stat) { 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* probably querying a window that's recently been destroyed */ 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) _mesa_warning(NULL, "XGetGeometry failed!\n"); 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *width = *height = 1; 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define GET_REDMASK(__v) __v->mesa_visual.redMask 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define GET_GREENMASK(__v) __v->mesa_visual.greenMask 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define GET_BLUEMASK(__v) __v->mesa_visual.blueMask 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Choose the pixel format for the given visual. 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This will tell the gallium driver how to pack pixel data into 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * drawing surfaces. 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static GLuint 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)choose_pixel_format(XMesaVisual v) 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) boolean native_byte_order = (host_byte_order() == 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ImageByteOrder(v->display)); 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if ( GET_REDMASK(v) == 0x0000ff 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && GET_GREENMASK(v) == 0x00ff00 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && GET_BLUEMASK(v) == 0xff0000 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && v->BitsPerPixel == 32) { 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (native_byte_order) { 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* no byteswapping needed */ 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PIPE_FORMAT_R8G8B8A8_UNORM; 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PIPE_FORMAT_A8B8G8R8_UNORM; 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else if ( GET_REDMASK(v) == 0xff0000 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && GET_GREENMASK(v) == 0x00ff00 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && GET_BLUEMASK(v) == 0x0000ff 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && v->BitsPerPixel == 32) { 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (native_byte_order) { 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* no byteswapping needed */ 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PIPE_FORMAT_B8G8R8A8_UNORM; 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PIPE_FORMAT_A8R8G8B8_UNORM; 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else if ( GET_REDMASK(v) == 0x0000ff00 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && GET_GREENMASK(v) == 0x00ff0000 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && GET_BLUEMASK(v) == 0xff000000 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && v->BitsPerPixel == 32) { 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (native_byte_order) { 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* no byteswapping needed */ 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PIPE_FORMAT_A8R8G8B8_UNORM; 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PIPE_FORMAT_B8G8R8A8_UNORM; 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else if ( GET_REDMASK(v) == 0xf800 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && GET_GREENMASK(v) == 0x07e0 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && GET_BLUEMASK(v) == 0x001f 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && native_byte_order 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) && v->BitsPerPixel == 16) { 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* 5-6-5 RGB */ 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PIPE_FORMAT_B5G6R5_UNORM; 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PIPE_FORMAT_NONE; 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Choose a depth/stencil format that satisfies the given depth and 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * stencil sizes. 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static enum pipe_format 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)choose_depth_stencil_format(XMesaDisplay xmdpy, int depth, int stencil) 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const enum pipe_texture_target target = PIPE_TEXTURE_2D; 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const unsigned tex_usage = PIPE_BIND_DEPTH_STENCIL; 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const unsigned sample_count = 0; 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum pipe_format formats[8], fmt; 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int count, i; 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) count = 0; 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (depth <= 16 && stencil == 0) { 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) formats[count++] = PIPE_FORMAT_Z16_UNORM; 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (depth <= 24 && stencil == 0) { 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) formats[count++] = PIPE_FORMAT_X8Z24_UNORM; 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) formats[count++] = PIPE_FORMAT_Z24X8_UNORM; 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (depth <= 24 && stencil <= 8) { 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) formats[count++] = PIPE_FORMAT_S8_USCALED_Z24_UNORM; 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) formats[count++] = PIPE_FORMAT_Z24_UNORM_S8_USCALED; 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (depth <= 32 && stencil == 0) { 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) formats[count++] = PIPE_FORMAT_Z32_UNORM; 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fmt = PIPE_FORMAT_NONE; 4015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (i = 0; i < count; i++) { 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (xmdpy->screen->is_format_supported(xmdpy->screen, formats[i], 4035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) target, sample_count, 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tex_usage)) { 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) fmt = formats[i]; 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return fmt; 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/**********************************************************************/ 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/***** Linked list of XMesaBuffers *****/ 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/**********************************************************************/ 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static XMesaBuffer XMesaBufferList = NULL; 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Allocate a new XMesaBuffer object which corresponds to the given drawable. 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Note that XMesaBuffer is derived from struct gl_framebuffer. 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The new XMesaBuffer will not have any size (Width=Height=0). 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param d the corresponding X drawable (window or pixmap) 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param type either WINDOW, PIXMAP or PBUFFER, describing d 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param vis the buffer's visual 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param cmap the window's colormap, if known. 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \return new XMesaBuffer or NULL if any problem 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static XMesaBuffer 4345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)create_xmesa_buffer(Drawable d, BufferType type, 4355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaVisual vis, Colormap cmap) 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaDisplay xmdpy = xmesa_init_display(vis->display); 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaBuffer b; 4395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint width, height; 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ASSERT(type == WINDOW || type == PIXMAP || type == PBUFFER); 4425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!xmdpy) 4445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 4455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b = (XMesaBuffer) CALLOC_STRUCT(xmesa_buffer); 4475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!b) 4485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 4495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->ws.drawable = d; 4515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->ws.visual = vis->visinfo->visual; 4525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->ws.depth = vis->visinfo->depth; 4535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->xm_visual = vis; 4555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->type = type; 4565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->cmap = cmap; 4575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_drawable_size(vis->display, d, &width, &height); 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Create framebuffer, but we'll plug in our own renderbuffers below. 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 4635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->stfb = xmesa_create_st_framebuffer(xmdpy, b); 4645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* GLX_EXT_texture_from_pixmap */ 4665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->TextureTarget = 0; 4675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->TextureFormat = GLX_TEXTURE_FORMAT_NONE_EXT; 4685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->TextureMipmap = 0; 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* insert buffer into linked list */ 4715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->Next = XMesaBufferList; 4725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaBufferList = b; 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return b; 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Find an XMesaBuffer by matching X display and colormap but NOT matching 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the notThis buffer. 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)XMesaBuffer 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)xmesa_find_buffer(Display *dpy, Colormap cmap, XMesaBuffer notThis) 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaBuffer b; 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (b = XMesaBufferList; b; b = b->Next) { 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (b->xm_visual->display == dpy && 4885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->cmap == cmap && 4895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b != notThis) { 4905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return b; 4915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 4985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Remove buffer from linked list, delete if no longer referenced. 4995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 5005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void 5015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)xmesa_free_buffer(XMesaBuffer buffer) 5025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 5035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaBuffer prev = NULL, b; 5045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (b = XMesaBufferList; b; b = b->Next) { 5065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (b == buffer) { 5075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* unlink buffer from list */ 5085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (prev) 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prev->Next = buffer->Next; 5105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 5115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaBufferList = buffer->Next; 5125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Since the X window for the XMesaBuffer is going away, we don't 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * want to dereference this pointer in the future. 5155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) b->ws.drawable = 0; 5175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* XXX we should move the buffer to a delete-pending list and destroy 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the buffer until it is no longer current. 5205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 5215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) xmesa_destroy_st_framebuffer(buffer->stfb); 5225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) free(buffer); 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 5265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* continue search */ 5285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prev = b; 5295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* buffer not found in XMesaBufferList */ 5315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) _mesa_problem(NULL,"xmesa_free_buffer() - buffer not found\n"); 5325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/**********************************************************************/ 5375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/***** Misc Private Functions *****/ 5385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/**********************************************************************/ 5395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * When a context is bound for the first time, we can finally finish 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * initializing the context's visual and buffer information. 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param v the XMesaVisual to initialize 5455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param b the XMesaBuffer to initialize (may be NULL) 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param rgb_flag TRUE = RGBA mode, FALSE = color index mode 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param window the window/pixmap we're rendering into 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param cmap the colormap associated with the window/pixmap 5495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \return GL_TRUE=success, GL_FALSE=failure 5505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static GLboolean 5525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)initialize_visual_and_buffer(XMesaVisual v, XMesaBuffer b, 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLboolean rgb_flag, Drawable window, 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Colormap cmap) 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 5565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ASSERT(!b || b->xm_visual == v); 5575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Save true bits/pixel */ 5595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->BitsPerPixel = bits_per_pixel(v); 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(v->BitsPerPixel > 0); 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (rgb_flag == GL_FALSE) { 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* COLOR-INDEXED WINDOW: not supported*/ 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GL_FALSE; 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* RGB WINDOW: 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * We support RGB rendering into almost any kind of visual. 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const int xclass = v->visualType; 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (xclass != GLX_TRUE_COLOR && xclass == !GLX_DIRECT_COLOR) { 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) _mesa_warning(NULL, 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "XMesa: RGB mode rendering not supported in given visual.\n"); 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GL_FALSE; 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->mesa_visual.indexBits = 0; 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (v->BitsPerPixel == 32) { 5795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* We use XImages for all front/back buffers. If an X Window or 5805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * X Pixmap is 32bpp, there's no guarantee that the alpha channel 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * will be preserved. For XImages we're in luck. 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->mesa_visual.alphaBits = 8; 5845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* 5885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * If MESA_INFO env var is set print out some debugging info 5895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * which can help Brian figure out what's going on when a user 5905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * reports bugs. 5915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 5925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (_mesa_getenv("MESA_INFO")) { 5935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) printf("X/Mesa visual = %p\n", (void *) v); 5945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) printf("X/Mesa level = %d\n", v->mesa_visual.level); 5955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) printf("X/Mesa depth = %d\n", v->visinfo->depth); 5965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) printf("X/Mesa bits per pixel = %d\n", v->BitsPerPixel); 5975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GL_TRUE; 6005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define NUM_VISUAL_TYPES 6 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 6075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Convert an X visual type to a GLX visual type. 6085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 6095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \param visualType X visual type (i.e., \c TrueColor, \c StaticGray, etc.) 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * to be converted. 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \return If \c visualType is a valid X visual type, a GLX visual type will 6125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * be returned. Otherwise \c GLX_NONE will be returned. 6135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 6145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * \note 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * This code was lifted directly from lib/GL/glx/glcontextmodes.c in the 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DRI CVS tree. 6175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static GLint 6195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)xmesa_convert_from_x_visual_type( int visualType ) 6205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 6215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const int glx_visual_types[ NUM_VISUAL_TYPES ] = { 6225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLX_STATIC_GRAY, GLX_GRAY_SCALE, 6235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLX_STATIC_COLOR, GLX_PSEUDO_COLOR, 6245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLX_TRUE_COLOR, GLX_DIRECT_COLOR 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 6265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ( (unsigned) visualType < NUM_VISUAL_TYPES ) 6285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ? glx_visual_types[ visualType ] : GLX_NONE; 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/**********************************************************************/ 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/***** Public Functions *****/ 6345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/**********************************************************************/ 6355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Create a new X/Mesa visual. 6395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Input: display - X11 display 6405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * visinfo - an XVisualInfo pointer 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * rgb_flag - GL_TRUE = RGB mode, 6425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * GL_FALSE = color index mode 6435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * alpha_flag - alpha buffer requested? 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * db_flag - GL_TRUE = double-buffered, 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * GL_FALSE = single buffered 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * stereo_flag - stereo visual? 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ximage_flag - GL_TRUE = use an XImage for back buffer, 6485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * GL_FALSE = use an off-screen pixmap for back buffer 6495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * depth_size - requested bits/depth values, or zero 6505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * stencil_size - requested bits/stencil values, or zero 6515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * accum_red_size - requested bits/red accum values, or zero 6525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * accum_green_size - requested bits/green accum values, or zero 6535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * accum_blue_size - requested bits/blue accum values, or zero 6545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * accum_alpha_size - requested bits/alpha accum values, or zero 6555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * num_samples - number of samples/pixel if multisampling, or zero 6565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * level - visual level, usually 0 6575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * visualCaveat - ala the GLX extension, usually GLX_NONE 6585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Return; a new XMesaVisual or 0 if error. 6595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)PUBLIC 6615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)XMesaVisual XMesaCreateVisual( Display *display, 6625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XVisualInfo * visinfo, 6635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLboolean rgb_flag, 6645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLboolean alpha_flag, 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLboolean db_flag, 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLboolean stereo_flag, 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLboolean ximage_flag, 6685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint depth_size, 6695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint stencil_size, 6705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint accum_red_size, 6715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint accum_green_size, 6725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint accum_blue_size, 6735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint accum_alpha_size, 6745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint num_samples, 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint level, 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint visualCaveat ) 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 6785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaDisplay xmdpy = xmesa_init_display(display); 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XMesaVisual v; 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLint red_bits, green_bits, blue_bits, alpha_bits; 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!xmdpy) 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* For debugging only */ 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (_mesa_getenv("MESA_XSYNC")) { 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* This makes debugging X easier. 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * In your debugger, set a breakpoint on _XError to stop when an 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * X protocol error is generated. 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 6915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) XSynchronize( display, 1 ); 6925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v = (XMesaVisual) CALLOC_STRUCT(xmesa_visual); 6955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!v) { 6965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->display = display; 7005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Save a copy of the XVisualInfo struct because the user may Xfree() 7025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the struct but we may need some of the information contained in it 7035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * at a later time. 7045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 7055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->visinfo = (XVisualInfo *) MALLOC(sizeof(*visinfo)); 7065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!v->visinfo) { 7075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) free(v); 7085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 7095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy(v->visinfo, visinfo, sizeof(*visinfo)); 7115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->ximage_flag = ximage_flag; 7135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->mesa_visual.redMask = visinfo->red_mask; 7155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->mesa_visual.greenMask = visinfo->green_mask; 7165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->mesa_visual.blueMask = visinfo->blue_mask; 7175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->visualID = visinfo->visualid; 7185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->screen = visinfo->screen; 7195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if !(defined(__cplusplus) || defined(c_plusplus)) 7215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->visualType = xmesa_convert_from_x_visual_type(visinfo->class); 7225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 7235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->visualType = xmesa_convert_from_x_visual_type(visinfo->c_class); 7245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 7255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->mesa_visual.visualRating = visualCaveat; 7275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (alpha_flag) 7295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->mesa_visual.alphaBits = 8; 7305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (void) initialize_visual_and_buffer( v, NULL, rgb_flag, 0, 0 ); 7325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const int xclass = v->visualType; 7355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) { 7365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) red_bits = _mesa_bitcount(GET_REDMASK(v)); 7375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) green_bits = _mesa_bitcount(GET_GREENMASK(v)); 7385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) blue_bits = _mesa_bitcount(GET_BLUEMASK(v)); 7395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 7415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* this is an approximation */ 7425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int depth; 7435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) depth = v->visinfo->depth; 7445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) red_bits = depth / 3; 7455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) depth -= red_bits; 7465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) green_bits = depth / 2; 7475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) depth -= green_bits; 7485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) blue_bits = depth; 7495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) alpha_bits = 0; 7505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert( red_bits + green_bits + blue_bits == v->visinfo->depth ); 7515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) alpha_bits = v->mesa_visual.alphaBits; 7535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* initialize visual */ 7565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 7575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct gl_config *vis = &v->mesa_visual; 7585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->rgbMode = GL_TRUE; 7605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->doubleBufferMode = db_flag; 7615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->stereoMode = stereo_flag; 7625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->redBits = red_bits; 7645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->greenBits = green_bits; 7655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->blueBits = blue_bits; 7665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->alphaBits = alpha_bits; 7675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->rgbBits = red_bits + green_bits + blue_bits; 7685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->indexBits = 0; 7705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->depthBits = depth_size; 7715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->stencilBits = stencil_size; 7725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->accumRedBits = accum_red_size; 7745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->accumGreenBits = accum_green_size; 7755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->accumBlueBits = accum_blue_size; 7765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->accumAlphaBits = accum_alpha_size; 7775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->haveAccumBuffer = accum_red_size > 0; 7795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->haveDepthBuffer = depth_size > 0; 7805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->haveStencilBuffer = stencil_size > 0; 7815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->numAuxBuffers = 0; 7835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->level = 0; 7845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->sampleBuffers = 0; 7855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vis->samples = 0; 7865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) v->stvis.buffer_mask = ST_ATTACHMENT_FRONT_LEFT_MASK; 7895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (db_flag) 790 v->stvis.buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK; 791 if (stereo_flag) { 792 v->stvis.buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK; 793 if (db_flag) 794 v->stvis.buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK; 795 } 796 797 v->stvis.color_format = choose_pixel_format(v); 798 if (v->stvis.color_format == PIPE_FORMAT_NONE) { 799 FREE(v->visinfo); 800 FREE(v); 801 return NULL; 802 } 803 804 v->stvis.depth_stencil_format = 805 choose_depth_stencil_format(xmdpy, depth_size, stencil_size); 806 807 v->stvis.accum_format = (accum_red_size + 808 accum_green_size + accum_blue_size + accum_alpha_size) ? 809 PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE; 810 811 v->stvis.samples = num_samples; 812 v->stvis.render_buffer = ST_ATTACHMENT_INVALID; 813 814 /* XXX minor hack */ 815 v->mesa_visual.level = level; 816 return v; 817} 818 819 820PUBLIC 821void XMesaDestroyVisual( XMesaVisual v ) 822{ 823 free(v->visinfo); 824 free(v); 825} 826 827 828/** 829 * Return the informative name. 830 */ 831const char * 832xmesa_get_name(void) 833{ 834 return stapi->name; 835} 836 837 838/** 839 * Do per-display initializations. 840 */ 841void 842xmesa_init( Display *display ) 843{ 844 xmesa_init_display(display); 845} 846 847 848/** 849 * Create a new XMesaContext. 850 * \param v the XMesaVisual 851 * \param share_list another XMesaContext with which to share display 852 * lists or NULL if no sharing is wanted. 853 * \return an XMesaContext or NULL if error. 854 */ 855PUBLIC 856XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list ) 857{ 858 XMesaDisplay xmdpy = xmesa_init_display(v->display); 859 struct st_context_attribs attribs; 860 XMesaContext c; 861 862 if (!xmdpy) 863 return NULL; 864 865 /* Note: the XMesaContext contains a Mesa struct gl_context struct (inheritance) */ 866 c = (XMesaContext) CALLOC_STRUCT(xmesa_context); 867 if (!c) 868 return NULL; 869 870 c->xm_visual = v; 871 c->xm_buffer = NULL; /* set later by XMesaMakeCurrent */ 872 c->xm_read_buffer = NULL; 873 874 memset(&attribs, 0, sizeof(attribs)); 875 attribs.profile = ST_PROFILE_DEFAULT; 876 attribs.visual = v->stvis; 877 878 c->st = stapi->create_context(stapi, xmdpy->smapi, 879 &attribs, (share_list) ? share_list->st : NULL); 880 if (c->st == NULL) 881 goto fail; 882 883 c->st->st_manager_private = (void *) c; 884 885 return c; 886 887fail: 888 if (c->st) 889 c->st->destroy(c->st); 890 891 free(c); 892 return NULL; 893} 894 895 896 897PUBLIC 898void XMesaDestroyContext( XMesaContext c ) 899{ 900 c->st->destroy(c->st); 901 902 /* FIXME: We should destroy the screen here, but if we do so, surfaces may 903 * outlive it, causing segfaults 904 struct pipe_screen *screen = c->st->pipe->screen; 905 screen->destroy(screen); 906 */ 907 908 free(c); 909} 910 911 912 913/** 914 * Private function for creating an XMesaBuffer which corresponds to an 915 * X window or pixmap. 916 * \param v the window's XMesaVisual 917 * \param w the window we're wrapping 918 * \return new XMesaBuffer or NULL if error 919 */ 920PUBLIC XMesaBuffer 921XMesaCreateWindowBuffer(XMesaVisual v, Window w) 922{ 923 XWindowAttributes attr; 924 XMesaBuffer b; 925 Colormap cmap; 926 int depth; 927 928 assert(v); 929 assert(w); 930 931 /* Check that window depth matches visual depth */ 932 XGetWindowAttributes( v->display, w, &attr ); 933 depth = attr.depth; 934 if (v->visinfo->depth != depth) { 935 _mesa_warning(NULL, "XMesaCreateWindowBuffer: depth mismatch between visual (%d) and window (%d)!\n", 936 v->visinfo->depth, depth); 937 return NULL; 938 } 939 940 /* Find colormap */ 941 if (attr.colormap) { 942 cmap = attr.colormap; 943 } 944 else { 945 _mesa_warning(NULL, "Window %u has no colormap!\n", (unsigned int) w); 946 /* this is weird, a window w/out a colormap!? */ 947 /* OK, let's just allocate a new one and hope for the best */ 948 cmap = XCreateColormap(v->display, w, attr.visual, AllocNone); 949 } 950 951 b = create_xmesa_buffer((Drawable) w, WINDOW, v, cmap); 952 if (!b) 953 return NULL; 954 955 if (!initialize_visual_and_buffer( v, b, v->mesa_visual.rgbMode, 956 (Drawable) w, cmap )) { 957 xmesa_free_buffer(b); 958 return NULL; 959 } 960 961 return b; 962} 963 964 965 966/** 967 * Create a new XMesaBuffer from an X pixmap. 968 * 969 * \param v the XMesaVisual 970 * \param p the pixmap 971 * \param cmap the colormap, may be 0 if using a \c GLX_TRUE_COLOR or 972 * \c GLX_DIRECT_COLOR visual for the pixmap 973 * \returns new XMesaBuffer or NULL if error 974 */ 975PUBLIC XMesaBuffer 976XMesaCreatePixmapBuffer(XMesaVisual v, Pixmap p, Colormap cmap) 977{ 978 XMesaBuffer b; 979 980 assert(v); 981 982 b = create_xmesa_buffer((Drawable) p, PIXMAP, v, cmap); 983 if (!b) 984 return NULL; 985 986 if (!initialize_visual_and_buffer(v, b, v->mesa_visual.rgbMode, 987 (Drawable) p, cmap)) { 988 xmesa_free_buffer(b); 989 return NULL; 990 } 991 992 return b; 993} 994 995 996/** 997 * For GLX_EXT_texture_from_pixmap 998 */ 999XMesaBuffer 1000XMesaCreatePixmapTextureBuffer(XMesaVisual v, Pixmap p, 1001 Colormap cmap, 1002 int format, int target, int mipmap) 1003{ 1004 GET_CURRENT_CONTEXT(ctx); 1005 XMesaBuffer b; 1006 1007 assert(v); 1008 1009 b = create_xmesa_buffer((Drawable) p, PIXMAP, v, cmap); 1010 if (!b) 1011 return NULL; 1012 1013 /* get pixmap size */ 1014 xmesa_get_window_size(v->display, b, &b->width, &b->height); 1015 1016 if (target == 0) { 1017 /* examine dims */ 1018 if (ctx->Extensions.ARB_texture_non_power_of_two) { 1019 target = GLX_TEXTURE_2D_EXT; 1020 } 1021 else if ( _mesa_bitcount(b->width) == 1 1022 && _mesa_bitcount(b->height) == 1) { 1023 /* power of two size */ 1024 if (b->height == 1) { 1025 target = GLX_TEXTURE_1D_EXT; 1026 } 1027 else { 1028 target = GLX_TEXTURE_2D_EXT; 1029 } 1030 } 1031 else if (ctx->Extensions.NV_texture_rectangle) { 1032 target = GLX_TEXTURE_RECTANGLE_EXT; 1033 } 1034 else { 1035 /* non power of two textures not supported */ 1036 XMesaDestroyBuffer(b); 1037 return 0; 1038 } 1039 } 1040 1041 b->TextureTarget = target; 1042 b->TextureFormat = format; 1043 b->TextureMipmap = mipmap; 1044 1045 if (!initialize_visual_and_buffer(v, b, v->mesa_visual.rgbMode, 1046 (Drawable) p, cmap)) { 1047 xmesa_free_buffer(b); 1048 return NULL; 1049 } 1050 1051 return b; 1052} 1053 1054 1055 1056XMesaBuffer 1057XMesaCreatePBuffer(XMesaVisual v, Colormap cmap, 1058 unsigned int width, unsigned int height) 1059{ 1060 Window root; 1061 Drawable drawable; /* X Pixmap Drawable */ 1062 XMesaBuffer b; 1063 1064 /* allocate pixmap for front buffer */ 1065 root = RootWindow( v->display, v->visinfo->screen ); 1066 drawable = XCreatePixmap(v->display, root, width, height, 1067 v->visinfo->depth); 1068 if (!drawable) 1069 return NULL; 1070 1071 b = create_xmesa_buffer(drawable, PBUFFER, v, cmap); 1072 if (!b) 1073 return NULL; 1074 1075 if (!initialize_visual_and_buffer(v, b, v->mesa_visual.rgbMode, 1076 drawable, cmap)) { 1077 xmesa_free_buffer(b); 1078 return NULL; 1079 } 1080 1081 return b; 1082} 1083 1084 1085 1086/* 1087 * Deallocate an XMesaBuffer structure and all related info. 1088 */ 1089PUBLIC void 1090XMesaDestroyBuffer(XMesaBuffer b) 1091{ 1092 xmesa_free_buffer(b); 1093} 1094 1095 1096/** 1097 * Notify the binding context to validate the buffer. 1098 */ 1099void 1100xmesa_notify_invalid_buffer(XMesaBuffer b) 1101{ 1102 XMesaContext xmctx = XMesaGetCurrentContext(); 1103 1104 if (xmctx && xmctx->xm_buffer == b) 1105 xmctx->st->notify_invalid_framebuffer(xmctx->st, b->stfb); 1106} 1107 1108 1109/** 1110 * Query the current drawable size and notify the binding context. 1111 */ 1112void 1113xmesa_check_buffer_size(XMesaBuffer b) 1114{ 1115 if (b->type == PBUFFER) 1116 return; 1117 1118 xmesa_get_window_size(b->xm_visual->display, b, &b->width, &b->height); 1119 xmesa_notify_invalid_buffer(b); 1120} 1121 1122 1123/* 1124 * Bind buffer b to context c and make c the current rendering context. 1125 */ 1126PUBLIC 1127GLboolean XMesaMakeCurrent2( XMesaContext c, XMesaBuffer drawBuffer, 1128 XMesaBuffer readBuffer ) 1129{ 1130 XMesaContext old_ctx = XMesaGetCurrentContext(); 1131 1132 if (old_ctx && old_ctx != c) { 1133 XMesaFlush(old_ctx); 1134 old_ctx->xm_buffer = NULL; 1135 old_ctx->xm_read_buffer = NULL; 1136 } 1137 1138 if (c) { 1139 if (!drawBuffer || !readBuffer) 1140 return GL_FALSE; /* must specify buffers! */ 1141 1142 if (c == old_ctx && 1143 c->xm_buffer == drawBuffer && 1144 c->xm_read_buffer == readBuffer) 1145 return GL_TRUE; 1146 1147 xmesa_check_buffer_size(drawBuffer); 1148 if (readBuffer != drawBuffer) 1149 xmesa_check_buffer_size(readBuffer); 1150 1151 c->xm_buffer = drawBuffer; 1152 c->xm_read_buffer = readBuffer; 1153 1154 stapi->make_current(stapi, c->st, drawBuffer->stfb, readBuffer->stfb); 1155 1156 /* Solution to Stephane Rehel's problem with glXReleaseBuffersMESA(): */ 1157 drawBuffer->wasCurrent = GL_TRUE; 1158 } 1159 else { 1160 /* Detach */ 1161 stapi->make_current(stapi, NULL, NULL, NULL); 1162 1163 } 1164 return GL_TRUE; 1165} 1166 1167 1168/* 1169 * Unbind the context c from its buffer. 1170 */ 1171GLboolean XMesaUnbindContext( XMesaContext c ) 1172{ 1173 /* A no-op for XFree86 integration purposes */ 1174 return GL_TRUE; 1175} 1176 1177 1178XMesaContext XMesaGetCurrentContext( void ) 1179{ 1180 struct st_context_iface *st = stapi->get_current(stapi); 1181 return (XMesaContext) (st) ? st->st_manager_private : NULL; 1182} 1183 1184 1185 1186/** 1187 * Swap front and back color buffers and have winsys display front buffer. 1188 * If there's no front color buffer no swap actually occurs. 1189 */ 1190PUBLIC 1191void XMesaSwapBuffers( XMesaBuffer b ) 1192{ 1193 XMesaContext xmctx = XMesaGetCurrentContext(); 1194 1195 if (xmctx && xmctx->xm_buffer == b) { 1196 xmctx->st->flush( xmctx->st, 1197 PIPE_FLUSH_RENDER_CACHE | 1198 PIPE_FLUSH_SWAPBUFFERS | 1199 PIPE_FLUSH_FRAME, 1200 NULL); 1201 } 1202 1203 xmesa_swap_st_framebuffer(b->stfb); 1204} 1205 1206 1207 1208/* 1209 * Copy sub-region of back buffer to front buffer 1210 */ 1211void XMesaCopySubBuffer( XMesaBuffer b, int x, int y, int width, int height ) 1212{ 1213 xmesa_copy_st_framebuffer(b->stfb, 1214 ST_ATTACHMENT_BACK_LEFT, ST_ATTACHMENT_FRONT_LEFT, 1215 x, y, width, height); 1216} 1217 1218 1219 1220void XMesaFlush( XMesaContext c ) 1221{ 1222 if (c && c->xm_visual->display) { 1223 XMesaDisplay xmdpy = xmesa_init_display(c->xm_visual->display); 1224 struct pipe_fence_handle *fence = NULL; 1225 1226 c->st->flush(c->st, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, &fence); 1227 if (fence) { 1228 xmdpy->screen->fence_finish(xmdpy->screen, fence, 1229 PIPE_TIMEOUT_INFINITE); 1230 xmdpy->screen->fence_reference(xmdpy->screen, &fence, NULL); 1231 } 1232 XFlush( c->xm_visual->display ); 1233 } 1234} 1235 1236 1237 1238 1239 1240XMesaBuffer XMesaFindBuffer( Display *dpy, Drawable d ) 1241{ 1242 XMesaBuffer b; 1243 for (b = XMesaBufferList; b; b = b->Next) { 1244 if (b->ws.drawable == d && b->xm_visual->display == dpy) { 1245 return b; 1246 } 1247 } 1248 return NULL; 1249} 1250 1251 1252/** 1253 * Free/destroy all XMesaBuffers associated with given display. 1254 */ 1255void xmesa_destroy_buffers_on_display(Display *dpy) 1256{ 1257 XMesaBuffer b, next; 1258 for (b = XMesaBufferList; b; b = next) { 1259 next = b->Next; 1260 if (b->xm_visual->display == dpy) { 1261 xmesa_free_buffer(b); 1262 /* delete head of list? */ 1263 if (XMesaBufferList == b) { 1264 XMesaBufferList = next; 1265 } 1266 } 1267 } 1268} 1269 1270 1271/* 1272 * Look for XMesaBuffers whose X window has been destroyed. 1273 * Deallocate any such XMesaBuffers. 1274 */ 1275void XMesaGarbageCollect( void ) 1276{ 1277 XMesaBuffer b, next; 1278 for (b=XMesaBufferList; b; b=next) { 1279 next = b->Next; 1280 if (b->xm_visual && 1281 b->xm_visual->display && 1282 b->ws.drawable && 1283 b->type == WINDOW) { 1284 XSync(b->xm_visual->display, False); 1285 if (!window_exists( b->xm_visual->display, b->ws.drawable )) { 1286 /* found a dead window, free the ancillary info */ 1287 XMesaDestroyBuffer( b ); 1288 } 1289 } 1290 } 1291} 1292 1293 1294 1295 1296PUBLIC void 1297XMesaBindTexImage(Display *dpy, XMesaBuffer drawable, int buffer, 1298 const int *attrib_list) 1299{ 1300} 1301 1302 1303 1304PUBLIC void 1305XMesaReleaseTexImage(Display *dpy, XMesaBuffer drawable, int buffer) 1306{ 1307} 1308 1309 1310void 1311XMesaCopyContext(XMesaContext src, XMesaContext dst, unsigned long mask) 1312{ 1313 if (dst->st->copy) 1314 dst->st->copy(dst->st, src->st, mask); 1315} 1316