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364 lines
10 KiB
C
364 lines
10 KiB
C
/*
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* X11DRV OpenGL functions
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*
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* Copyright 2000 Lionel Ulmer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "ts_xlib.h"
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#include <stdlib.h>
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#include <string.h>
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#include "wine/debug.h"
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#include "gdi.h"
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#include "x11drv.h"
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#include "wine_gl.h"
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WINE_DEFAULT_DEBUG_CHANNEL(opengl);
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#ifdef HAVE_OPENGL
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static void dump_PIXELFORMATDESCRIPTOR(PIXELFORMATDESCRIPTOR *ppfd) {
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DPRINTF(" - size / version : %d / %d\n", ppfd->nSize, ppfd->nVersion);
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DPRINTF(" - dwFlags : ");
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#define TEST_AND_DUMP(t,tv) if ((t) & (tv)) DPRINTF(#tv " ")
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TEST_AND_DUMP(ppfd->dwFlags, PFD_DEPTH_DONTCARE);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_DOUBLEBUFFER);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_DOUBLEBUFFER_DONTCARE);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_DRAW_TO_WINDOW);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_DRAW_TO_BITMAP);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_GENERIC_ACCELERATED);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_GENERIC_FORMAT);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_NEED_PALETTE);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_NEED_SYSTEM_PALETTE);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_STEREO);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_STEREO_DONTCARE);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_SUPPORT_GDI);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_SUPPORT_OPENGL);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_COPY);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_EXCHANGE);
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TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_LAYER_BUFFERS);
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#undef TEST_AND_DUMP
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DPRINTF("\n");
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DPRINTF(" - iPixelType : ");
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switch (ppfd->iPixelType) {
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case PFD_TYPE_RGBA: DPRINTF("PFD_TYPE_RGBA"); break;
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case PFD_TYPE_COLORINDEX: DPRINTF("PFD_TYPE_COLORINDEX"); break;
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}
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DPRINTF("\n");
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DPRINTF(" - Color : %d\n", ppfd->cColorBits);
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DPRINTF(" - Alpha : %d\n", ppfd->cAlphaBits);
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DPRINTF(" - Accum : %d\n", ppfd->cAccumBits);
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DPRINTF(" - Depth : %d\n", ppfd->cDepthBits);
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DPRINTF(" - Stencil : %d\n", ppfd->cStencilBits);
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DPRINTF(" - Aux : %d\n", ppfd->cAuxBuffers);
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DPRINTF(" - iLayerType : ");
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switch (ppfd->iLayerType) {
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case PFD_MAIN_PLANE: DPRINTF("PFD_MAIN_PLANE"); break;
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case PFD_OVERLAY_PLANE: DPRINTF("PFD_OVERLAY_PLANE"); break;
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case PFD_UNDERLAY_PLANE: DPRINTF("PFD_UNDERLAY_PLANE"); break;
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}
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DPRINTF("\n");
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}
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/* X11DRV_ChoosePixelFormat
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Equivalent of glXChooseVisual
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*/
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int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
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const PIXELFORMATDESCRIPTOR *ppfd) {
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#define TEST_AND_ADD1(t,a) if (t) att_list[att_pos++] = a
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#define TEST_AND_ADD2(t,a,b) if (t) { att_list[att_pos++] = a; att_list[att_pos++] = b; }
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#define NULL_TEST_AND_ADD2(tv,a,b) att_list[att_pos++] = a; att_list[att_pos++] = ((tv) == 0 ? 0 : b)
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#define ADD2(a,b) att_list[att_pos++] = a; att_list[att_pos++] = b
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int att_list[64];
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int att_pos = 0;
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XVisualInfo *vis;
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int i;
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if (TRACE_ON(opengl)) {
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TRACE("(%p,%p)\n", physDev, ppfd);
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dump_PIXELFORMATDESCRIPTOR((PIXELFORMATDESCRIPTOR *) ppfd);
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}
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if (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) {
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ERR("Flag not supported !\n");
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/* Should SetError here... */
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return 0;
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}
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/* Now, build the request to GLX */
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TEST_AND_ADD1(ppfd->dwFlags & PFD_DOUBLEBUFFER, GLX_DOUBLEBUFFER);
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TEST_AND_ADD1(ppfd->dwFlags & PFD_STEREO, GLX_STEREO);
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TEST_AND_ADD1(ppfd->iPixelType == PFD_TYPE_RGBA, GLX_RGBA);
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TEST_AND_ADD2(ppfd->iPixelType == PFD_TYPE_COLORINDEX, GLX_BUFFER_SIZE, ppfd->cColorBits);
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NULL_TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, 8);
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/* These flags are not supported yet...
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NULL_TEST_AND_ADD2(ppfd->cAlphaBits, GLX_ALPHA_SIZE, 8);
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ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits); */
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ADD2(GLX_STENCIL_SIZE, ppfd->cStencilBits); /* now suported */
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/* ADD2(GLX_AUX_BUFFERS, ppfd->cAuxBuffers); */
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att_list[att_pos] = None;
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ENTER_GL(); {
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/*
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This command cannot be used as we need to use the default visual...
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Let's hope it at least contains some OpenGL functionnalities
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vis = glXChooseVisual(gdi_display, DefaultScreen(gdi_display), att_list);
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*/
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int num;
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XVisualInfo template;
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template.visualid = XVisualIDFromVisual(visual);
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vis = XGetVisualInfo(gdi_display, VisualIDMask, &template, &num);
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TRACE("Found visual : %p - returns %d\n", vis, physDev->used_visuals + 1);
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}
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LEAVE_GL();
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if (vis == NULL) {
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ERR("No visual found !\n");
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/* Should SetError here... */
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return 0;
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}
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/* try to find the visualid in the already created visuals */
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for( i=0; i<physDev->used_visuals; i++ ) {
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if ( vis->visualid == physDev->visuals[i]->visualid ) {
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XFree(vis);
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return i+1;
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}
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}
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/* now give up, if the maximum is reached */
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if (physDev->used_visuals == MAX_PIXELFORMATS) {
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ERR("Maximum number of visuals reached !\n");
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/* Should SetError here... */
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return 0;
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}
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physDev->visuals[physDev->used_visuals++] = vis;
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return physDev->used_visuals;
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}
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/* X11DRV_DescribePixelFormat
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Get the pixel-format descriptor associated to the given id
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*/
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int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
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int iPixelFormat,
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UINT nBytes,
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PIXELFORMATDESCRIPTOR *ppfd) {
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XVisualInfo *vis;
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int value;
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int rb,gb,bb,ab;
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TRACE("(%p,%d,%d,%p)\n", physDev, iPixelFormat, nBytes, ppfd);
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if (ppfd == NULL) {
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/* The application is only querying the number of visuals */
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return MAX_PIXELFORMATS;
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}
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if (nBytes < sizeof(PIXELFORMATDESCRIPTOR)) {
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ERR("Wrong structure size !\n");
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/* Should set error */
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return 0;
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}
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if ((iPixelFormat > MAX_PIXELFORMATS) ||
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(iPixelFormat > physDev->used_visuals + 1) ||
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(iPixelFormat <= 0)) {
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ERR("Wrong pixel format !\n");
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/* Should set error */
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return 0;
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}
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if (iPixelFormat == physDev->used_visuals + 1) {
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int dblBuf[]={GLX_RGBA,GLX_DEPTH_SIZE,16,GLX_DOUBLEBUFFER,None};
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/* Create a 'standard' X Visual */
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ENTER_GL();
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vis = glXChooseVisual(gdi_display, DefaultScreen(gdi_display), dblBuf);
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LEAVE_GL();
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WARN("Uninitialized Visual. Creating standard (%p) !\n", vis);
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if (vis == NULL) {
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ERR("Could not create standard visual !\n");
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/* Should set error */
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return 0;
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}
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physDev->visuals[physDev->used_visuals++] = vis;
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}
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vis = physDev->visuals[iPixelFormat - 1];
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memset(ppfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
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ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR);
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ppfd->nVersion = 1;
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/* These flags are always the same... */
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ppfd->dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_GENERIC_ACCELERATED;
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/* Now the flags extraced from the Visual */
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ENTER_GL();
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glXGetConfig(gdi_display, vis, GLX_DOUBLEBUFFER, &value); if (value) ppfd->dwFlags |= PFD_DOUBLEBUFFER;
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glXGetConfig(gdi_display, vis, GLX_STEREO, &value); if (value) ppfd->dwFlags |= PFD_STEREO;
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/* Pixel type */
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glXGetConfig(gdi_display, vis, GLX_RGBA, &value);
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if (value)
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ppfd->iPixelType = PFD_TYPE_RGBA;
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else
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ppfd->iPixelType = PFD_TYPE_COLORINDEX;
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/* Color bits */
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glXGetConfig(gdi_display, vis, GLX_BUFFER_SIZE, &value);
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ppfd->cColorBits = value;
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/* Red, green, blue and alpha bits / shifts */
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if (ppfd->iPixelType == PFD_TYPE_RGBA) {
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glXGetConfig(gdi_display, vis, GLX_RED_SIZE, &rb);
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glXGetConfig(gdi_display, vis, GLX_GREEN_SIZE, &gb);
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glXGetConfig(gdi_display, vis, GLX_BLUE_SIZE, &bb);
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glXGetConfig(gdi_display, vis, GLX_ALPHA_SIZE, &ab);
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ppfd->cRedBits = rb;
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ppfd->cRedShift = gb + bb + ab;
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ppfd->cBlueBits = bb;
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ppfd->cBlueShift = ab;
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ppfd->cGreenBits = gb;
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ppfd->cGreenShift = bb + ab;
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ppfd->cAlphaBits = ab;
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ppfd->cAlphaShift = 0;
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} else {
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ppfd->cRedBits = 0;
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ppfd->cRedShift = 0;
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ppfd->cBlueBits = 0;
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ppfd->cBlueShift = 0;
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ppfd->cGreenBits = 0;
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ppfd->cGreenShift = 0;
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ppfd->cAlphaBits = 0;
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ppfd->cAlphaShift = 0;
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}
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/* Accums : to do ... */
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/* Depth bits */
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glXGetConfig(gdi_display, vis, GLX_DEPTH_SIZE, &value);
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ppfd->cDepthBits = value;
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/* stencil bits */
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glXGetConfig( gdi_display, vis, GLX_STENCIL_SIZE, &value );
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ppfd->cStencilBits = value;
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LEAVE_GL();
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/* Aux : to do ... */
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ppfd->iLayerType = PFD_MAIN_PLANE;
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if (TRACE_ON(opengl)) {
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dump_PIXELFORMATDESCRIPTOR(ppfd);
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}
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return MAX_PIXELFORMATS;
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}
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/* X11DRV_GetPixelFormat
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Get the pixel-format id used by this DC
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*/
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int X11DRV_GetPixelFormat(X11DRV_PDEVICE *physDev) {
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TRACE("(%p): returns %d\n", physDev, physDev->current_pf);
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return physDev->current_pf;
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}
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/* X11DRV_SetPixelFormat
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Set the pixel-format id used by this DC
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*/
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BOOL X11DRV_SetPixelFormat(X11DRV_PDEVICE *physDev,
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int iPixelFormat,
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const PIXELFORMATDESCRIPTOR *ppfd) {
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TRACE("(%p,%d,%p)\n", physDev, iPixelFormat, ppfd);
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physDev->current_pf = iPixelFormat;
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return TRUE;
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}
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/* X11DRV_SwapBuffers
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Swap the buffers of this DC
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*/
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BOOL X11DRV_SwapBuffers(X11DRV_PDEVICE *physDev) {
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TRACE("(%p)\n", physDev);
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ENTER_GL();
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glXSwapBuffers(gdi_display, physDev->drawable);
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LEAVE_GL();
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return TRUE;
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}
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#else /* defined(HAVE_OPENGL) */
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int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
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const PIXELFORMATDESCRIPTOR *ppfd) {
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ERR("No OpenGL support compiled in.\n");
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return 0;
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}
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int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
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int iPixelFormat,
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UINT nBytes,
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PIXELFORMATDESCRIPTOR *ppfd) {
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ERR("No OpenGL support compiled in.\n");
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return 0;
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}
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int X11DRV_GetPixelFormat(X11DRV_PDEVICE *physDev) {
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ERR("No OpenGL support compiled in.\n");
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return 0;
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}
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BOOL X11DRV_SetPixelFormat(X11DRV_PDEVICE *physDev,
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int iPixelFormat,
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const PIXELFORMATDESCRIPTOR *ppfd) {
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ERR("No OpenGL support compiled in.\n");
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return FALSE;
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}
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BOOL X11DRV_SwapBuffers(X11DRV_PDEVICE *physDev) {
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ERR("No OpenGL support compiled in.\n");
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return FALSE;
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}
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#endif /* defined(HAVE_OPENGL) */
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