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wine/graphics/x11drv/opengl.c
Francois Gouget 14a5d168e9 Fixed some common spelling errors.
2003-07-02 04:37:26 +00:00

495 lines
14 KiB
C
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/*
* X11DRV OpenGL functions
*
* Copyright 2000 Lionel Ulmer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include "ts_xlib.h"
#include <stdlib.h>
#include <string.h>
#include "gdi.h"
#include "x11drv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(opengl);
#if defined(HAVE_GL_GL_H) && defined(HAVE_GL_GLX_H)
#undef APIENTRY
#undef CALLBACK
#undef WINAPI
#define XMD_H /* This is to prevent the Xmd.h inclusion bug :-/ */
#ifdef HAVE_GL_GL_H
# include <GL/gl.h>
#endif
#ifdef HAVE_GL_GLX_H
# include <GL/glx.h>
#endif
#ifdef HAVE_GL_GLEXT_H
# include <GL/glext.h>
#endif
#undef XMD_H
#undef APIENTRY
#undef CALLBACK
#undef WINAPI
/* Redefines the constants */
#define CALLBACK __stdcall
#define WINAPI __stdcall
#define APIENTRY WINAPI
static void dump_PIXELFORMATDESCRIPTOR(PIXELFORMATDESCRIPTOR *ppfd) {
DPRINTF(" - size / version : %d / %d\n", ppfd->nSize, ppfd->nVersion);
DPRINTF(" - dwFlags : ");
#define TEST_AND_DUMP(t,tv) if ((t) & (tv)) DPRINTF(#tv " ")
TEST_AND_DUMP(ppfd->dwFlags, PFD_DEPTH_DONTCARE);
TEST_AND_DUMP(ppfd->dwFlags, PFD_DOUBLEBUFFER);
TEST_AND_DUMP(ppfd->dwFlags, PFD_DOUBLEBUFFER_DONTCARE);
TEST_AND_DUMP(ppfd->dwFlags, PFD_DRAW_TO_WINDOW);
TEST_AND_DUMP(ppfd->dwFlags, PFD_DRAW_TO_BITMAP);
TEST_AND_DUMP(ppfd->dwFlags, PFD_GENERIC_ACCELERATED);
TEST_AND_DUMP(ppfd->dwFlags, PFD_GENERIC_FORMAT);
TEST_AND_DUMP(ppfd->dwFlags, PFD_NEED_PALETTE);
TEST_AND_DUMP(ppfd->dwFlags, PFD_NEED_SYSTEM_PALETTE);
TEST_AND_DUMP(ppfd->dwFlags, PFD_STEREO);
TEST_AND_DUMP(ppfd->dwFlags, PFD_STEREO_DONTCARE);
TEST_AND_DUMP(ppfd->dwFlags, PFD_SUPPORT_GDI);
TEST_AND_DUMP(ppfd->dwFlags, PFD_SUPPORT_OPENGL);
TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_COPY);
TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_EXCHANGE);
TEST_AND_DUMP(ppfd->dwFlags, PFD_SWAP_LAYER_BUFFERS);
#undef TEST_AND_DUMP
DPRINTF("\n");
DPRINTF(" - iPixelType : ");
switch (ppfd->iPixelType) {
case PFD_TYPE_RGBA: DPRINTF("PFD_TYPE_RGBA"); break;
case PFD_TYPE_COLORINDEX: DPRINTF("PFD_TYPE_COLORINDEX"); break;
}
DPRINTF("\n");
DPRINTF(" - Color : %d\n", ppfd->cColorBits);
DPRINTF(" - Alpha : %d\n", ppfd->cAlphaBits);
DPRINTF(" - Accum : %d\n", ppfd->cAccumBits);
DPRINTF(" - Depth : %d\n", ppfd->cDepthBits);
DPRINTF(" - Stencil : %d\n", ppfd->cStencilBits);
DPRINTF(" - Aux : %d\n", ppfd->cAuxBuffers);
DPRINTF(" - iLayerType : ");
switch (ppfd->iLayerType) {
case PFD_MAIN_PLANE: DPRINTF("PFD_MAIN_PLANE"); break;
case PFD_OVERLAY_PLANE: DPRINTF("PFD_OVERLAY_PLANE"); break;
case PFD_UNDERLAY_PLANE: DPRINTF("PFD_UNDERLAY_PLANE"); break;
}
DPRINTF("\n");
}
/* No need to load any other libraries as according to the ABI, libGL should be self-sufficient and
include all dependencies
*/
#ifndef SONAME_LIBGL
#define SONAME_LIBGL "libGL.so"
#endif
static void *opengl_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f;
MAKE_FUNCPTR(glXChooseVisual)
MAKE_FUNCPTR(glXGetConfig)
MAKE_FUNCPTR(glXSwapBuffers)
MAKE_FUNCPTR(glXQueryExtension)
#undef MAKE_FUNCPTR
void X11DRV_OpenGL_Init(Display *display) {
int error_base, event_base;
opengl_handle = wine_dlopen(SONAME_LIBGL, RTLD_NOW|RTLD_GLOBAL, NULL, 0);
if (opengl_handle == NULL) return;
#define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(opengl_handle, #f, NULL, 0)) == NULL) goto sym_not_found;
LOAD_FUNCPTR(glXChooseVisual)
LOAD_FUNCPTR(glXGetConfig)
LOAD_FUNCPTR(glXSwapBuffers)
LOAD_FUNCPTR(glXQueryExtension)
#undef LOAD_FUNCPTR
wine_tsx11_lock();
if (pglXQueryExtension(display, &event_base, &error_base) == True) {
TRACE("GLX is up and running error_base = %d\n", error_base);
} else {
wine_dlclose(opengl_handle, NULL, 0);
opengl_handle = NULL;
}
wine_tsx11_unlock();
return;
sym_not_found:
wine_dlclose(opengl_handle, NULL, 0);
opengl_handle = NULL;
}
/* X11DRV_ChoosePixelFormat
Equivalent of glXChooseVisual
*/
int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
const PIXELFORMATDESCRIPTOR *ppfd) {
#define TEST_AND_ADD1(t,a) if (t) att_list[att_pos++] = a
#define TEST_AND_ADD2(t,a,b) if (t) { att_list[att_pos++] = a; att_list[att_pos++] = b; }
#define NULL_TEST_AND_ADD2(tv,a,b) att_list[att_pos++] = a; att_list[att_pos++] = ((tv) == 0 ? 0 : b)
#define ADD2(a,b) att_list[att_pos++] = a; att_list[att_pos++] = b
int att_list[64];
int att_pos = 0;
XVisualInfo *vis;
int i;
if (opengl_handle == NULL) {
ERR("No libGL on this box - disabling OpenGL support !\n");
return 0;
}
if (TRACE_ON(opengl)) {
TRACE("(%p,%p)\n", physDev, ppfd);
dump_PIXELFORMATDESCRIPTOR((PIXELFORMATDESCRIPTOR *) ppfd);
}
if (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) {
ERR("Flag not supported !\n");
/* Should SetError here... */
return 0;
}
/* Now, build the request to GLX */
TEST_AND_ADD1(ppfd->dwFlags & PFD_DOUBLEBUFFER, GLX_DOUBLEBUFFER);
TEST_AND_ADD1(ppfd->dwFlags & PFD_STEREO, GLX_STEREO);
TEST_AND_ADD1(ppfd->iPixelType == PFD_TYPE_RGBA, GLX_RGBA);
TEST_AND_ADD2(ppfd->iPixelType == PFD_TYPE_COLORINDEX, GLX_BUFFER_SIZE, ppfd->cColorBits);
NULL_TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, 8);
/* These flags are not supported yet...
NULL_TEST_AND_ADD2(ppfd->cAlphaBits, GLX_ALPHA_SIZE, 8);
ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits); */
ADD2(GLX_STENCIL_SIZE, ppfd->cStencilBits); /* now supported */
/* ADD2(GLX_AUX_BUFFERS, ppfd->cAuxBuffers); */
att_list[att_pos] = None;
wine_tsx11_lock(); {
/*
This command cannot be used as we need to use the default visual...
Let's hope it at least contains some OpenGL functionnalities
vis = glXChooseVisual(gdi_display, DefaultScreen(gdi_display), att_list);
*/
int num;
XVisualInfo template;
template.visualid = XVisualIDFromVisual(visual);
vis = XGetVisualInfo(gdi_display, VisualIDMask, &template, &num);
TRACE("Found visual : %p - returns %d\n", vis, physDev->used_visuals + 1);
}
wine_tsx11_unlock();
if (vis == NULL) {
ERR("No visual found !\n");
/* Should SetError here... */
return 0;
}
/* try to find the visualid in the already created visuals */
for( i=0; i<physDev->used_visuals; i++ ) {
if ( vis->visualid == physDev->visuals[i]->visualid ) {
XFree(vis);
return i+1;
}
}
/* now give up, if the maximum is reached */
if (physDev->used_visuals == MAX_PIXELFORMATS) {
ERR("Maximum number of visuals reached !\n");
/* Should SetError here... */
return 0;
}
physDev->visuals[physDev->used_visuals++] = vis;
return physDev->used_visuals;
}
/* X11DRV_DescribePixelFormat
Get the pixel-format descriptor associated to the given id
*/
int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
int iPixelFormat,
UINT nBytes,
PIXELFORMATDESCRIPTOR *ppfd) {
XVisualInfo *vis;
int value;
int rb,gb,bb,ab;
if (opengl_handle == NULL) {
ERR("No libGL on this box - disabling OpenGL support !\n");
return 0;
}
TRACE("(%p,%d,%d,%p)\n", physDev, iPixelFormat, nBytes, ppfd);
if (ppfd == NULL) {
/* The application is only querying the number of visuals */
return MAX_PIXELFORMATS;
}
if (nBytes < sizeof(PIXELFORMATDESCRIPTOR)) {
ERR("Wrong structure size !\n");
/* Should set error */
return 0;
}
if ((iPixelFormat > MAX_PIXELFORMATS) ||
(iPixelFormat > physDev->used_visuals + 1) ||
(iPixelFormat <= 0)) {
ERR("Wrong pixel format !\n");
/* Should set error */
return 0;
}
if (iPixelFormat == physDev->used_visuals + 1) {
int dblBuf[]={GLX_RGBA,GLX_DEPTH_SIZE,16,GLX_DOUBLEBUFFER,None};
/* Create a 'standard' X Visual */
wine_tsx11_lock();
vis = pglXChooseVisual(gdi_display, DefaultScreen(gdi_display), dblBuf);
wine_tsx11_unlock();
WARN("Uninitialized Visual. Creating standard (%p) !\n", vis);
if (vis == NULL) {
ERR("Could not create standard visual !\n");
/* Should set error */
return 0;
}
physDev->visuals[physDev->used_visuals++] = vis;
}
vis = physDev->visuals[iPixelFormat - 1];
memset(ppfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR);
ppfd->nVersion = 1;
/* These flags are always the same... */
ppfd->dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_GENERIC_ACCELERATED;
/* Now the flags extraced from the Visual */
wine_tsx11_lock();
pglXGetConfig(gdi_display, vis, GLX_DOUBLEBUFFER, &value); if (value) ppfd->dwFlags |= PFD_DOUBLEBUFFER;
pglXGetConfig(gdi_display, vis, GLX_STEREO, &value); if (value) ppfd->dwFlags |= PFD_STEREO;
/* Pixel type */
pglXGetConfig(gdi_display, vis, GLX_RGBA, &value);
if (value)
ppfd->iPixelType = PFD_TYPE_RGBA;
else
ppfd->iPixelType = PFD_TYPE_COLORINDEX;
/* Color bits */
pglXGetConfig(gdi_display, vis, GLX_BUFFER_SIZE, &value);
ppfd->cColorBits = value;
/* Red, green, blue and alpha bits / shifts */
if (ppfd->iPixelType == PFD_TYPE_RGBA) {
pglXGetConfig(gdi_display, vis, GLX_RED_SIZE, &rb);
pglXGetConfig(gdi_display, vis, GLX_GREEN_SIZE, &gb);
pglXGetConfig(gdi_display, vis, GLX_BLUE_SIZE, &bb);
pglXGetConfig(gdi_display, vis, GLX_ALPHA_SIZE, &ab);
ppfd->cRedBits = rb;
ppfd->cRedShift = gb + bb + ab;
ppfd->cBlueBits = bb;
ppfd->cBlueShift = ab;
ppfd->cGreenBits = gb;
ppfd->cGreenShift = bb + ab;
ppfd->cAlphaBits = ab;
ppfd->cAlphaShift = 0;
} else {
ppfd->cRedBits = 0;
ppfd->cRedShift = 0;
ppfd->cBlueBits = 0;
ppfd->cBlueShift = 0;
ppfd->cGreenBits = 0;
ppfd->cGreenShift = 0;
ppfd->cAlphaBits = 0;
ppfd->cAlphaShift = 0;
}
/* Accums : to do ... */
/* Depth bits */
pglXGetConfig(gdi_display, vis, GLX_DEPTH_SIZE, &value);
ppfd->cDepthBits = value;
/* stencil bits */
pglXGetConfig( gdi_display, vis, GLX_STENCIL_SIZE, &value );
ppfd->cStencilBits = value;
wine_tsx11_unlock();
/* Aux : to do ... */
ppfd->iLayerType = PFD_MAIN_PLANE;
if (TRACE_ON(opengl)) {
dump_PIXELFORMATDESCRIPTOR(ppfd);
}
return MAX_PIXELFORMATS;
}
/* X11DRV_GetPixelFormat
Get the pixel-format id used by this DC
*/
int X11DRV_GetPixelFormat(X11DRV_PDEVICE *physDev) {
TRACE("(%p): returns %d\n", physDev, physDev->current_pf);
return physDev->current_pf;
}
/* X11DRV_SetPixelFormat
Set the pixel-format id used by this DC
*/
BOOL X11DRV_SetPixelFormat(X11DRV_PDEVICE *physDev,
int iPixelFormat,
const PIXELFORMATDESCRIPTOR *ppfd) {
TRACE("(%p,%d,%p)\n", physDev, iPixelFormat, ppfd);
physDev->current_pf = iPixelFormat;
return TRUE;
}
/* X11DRV_SwapBuffers
Swap the buffers of this DC
*/
BOOL X11DRV_SwapBuffers(X11DRV_PDEVICE *physDev) {
if (opengl_handle == NULL) {
ERR("No libGL on this box - disabling OpenGL support !\n");
return 0;
}
TRACE("(%p)\n", physDev);
wine_tsx11_lock();
pglXSwapBuffers(gdi_display, physDev->drawable);
wine_tsx11_unlock();
return TRUE;
}
/***********************************************************************
* X11DRV_setup_opengl_visual
*
* Setup the default visual used for OpenGL and Direct3D, and the desktop
* window (if it exists). If OpenGL isn't available, the visual is simply
* set to the default visual for the display
*/
XVisualInfo *X11DRV_setup_opengl_visual( Display *display )
{
XVisualInfo *visual = NULL;
int dblBuf[]={GLX_RGBA,GLX_DEPTH_SIZE,16,GLX_DOUBLEBUFFER,None};
if (opengl_handle == NULL) return NULL;
/* In order to support OpenGL or D3D, we require a double-buffered visual */
wine_tsx11_lock();
visual = pglXChooseVisual(display, DefaultScreen(display), dblBuf);
wine_tsx11_unlock();
return visual;
}
#else /* no OpenGL includes */
void X11DRV_OpenGL_Init(Display *display)
{
}
/***********************************************************************
* ChoosePixelFormat (X11DRV.@)
*/
int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
const PIXELFORMATDESCRIPTOR *ppfd) {
ERR("No OpenGL support compiled in.\n");
return 0;
}
/***********************************************************************
* DescribePixelFormat (X11DRV.@)
*/
int X11DRV_DescribePixelFormat(X11DRV_PDEVICE *physDev,
int iPixelFormat,
UINT nBytes,
PIXELFORMATDESCRIPTOR *ppfd) {
ERR("No OpenGL support compiled in.\n");
return 0;
}
/***********************************************************************
* GetPixelFormat (X11DRV.@)
*/
int X11DRV_GetPixelFormat(X11DRV_PDEVICE *physDev) {
ERR("No OpenGL support compiled in.\n");
return 0;
}
/***********************************************************************
* SetPixelFormat (X11DRV.@)
*/
BOOL X11DRV_SetPixelFormat(X11DRV_PDEVICE *physDev,
int iPixelFormat,
const PIXELFORMATDESCRIPTOR *ppfd) {
ERR("No OpenGL support compiled in.\n");
return FALSE;
}
/***********************************************************************
* SwapBuffers (X11DRV.@)
*/
BOOL X11DRV_SwapBuffers(X11DRV_PDEVICE *physDev) {
ERR("No OpenGL support compiled in.\n");
return FALSE;
}
XVisualInfo *X11DRV_setup_opengl_visual( Display *display )
{
return NULL;
}
#endif /* defined(HAVE_OPENGL) */
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