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Sweden-Number/dlls/x11drv/opengl.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 <stdlib.h>
#include <string.h>
#include "x11drv.h"
#include "wine/library.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
#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 APIENTRY
#undef CALLBACK
#undef WINAPI
/* Redefines the constants */
#define CALLBACK __stdcall
#define WINAPI __stdcall
#define APIENTRY WINAPI
static void dump_PIXELFORMATDESCRIPTOR(const 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(" - Red : %d\n", ppfd->cRedBits);
DPRINTF(" - Green : %d\n", ppfd->cGreenBits);
DPRINTF(" - Blue : %d\n", ppfd->cBlueBits);
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 (BYTE)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
#define MAKE_FUNCPTR(f) static typeof(f) * p##f;
MAKE_FUNCPTR(glGetError)
MAKE_FUNCPTR(glXChooseVisual)
MAKE_FUNCPTR(glXGetConfig)
MAKE_FUNCPTR(glXSwapBuffers)
MAKE_FUNCPTR(glXQueryExtension)
MAKE_FUNCPTR(glXGetFBConfigs)
MAKE_FUNCPTR(glXChooseFBConfig)
MAKE_FUNCPTR(glXGetFBConfigAttrib)
#undef MAKE_FUNCPTR
static BOOL has_opengl(void)
{
static int init_done;
static void *opengl_handle;
int error_base, event_base;
if (init_done) return (opengl_handle != NULL);
init_done = 1;
opengl_handle = wine_dlopen(SONAME_LIBGL, RTLD_NOW|RTLD_GLOBAL, NULL, 0);
if (opengl_handle == NULL) return FALSE;
#define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(opengl_handle, #f, NULL, 0)) == NULL) goto sym_not_found;
LOAD_FUNCPTR(glGetError)
LOAD_FUNCPTR(glXChooseVisual)
LOAD_FUNCPTR(glXGetConfig)
LOAD_FUNCPTR(glXSwapBuffers)
LOAD_FUNCPTR(glXQueryExtension)
LOAD_FUNCPTR(glXGetFBConfigs)
LOAD_FUNCPTR(glXChooseFBConfig)
LOAD_FUNCPTR(glXGetFBConfigAttrib)
#undef LOAD_FUNCPTR
wine_tsx11_lock();
if (pglXQueryExtension(gdi_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 (opengl_handle != NULL);
sym_not_found:
wine_dlclose(opengl_handle, NULL, 0);
opengl_handle = NULL;
return FALSE;
}
#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)
/**
* X11DRV_ChoosePixelFormat
*
* Equivalent of glXChooseVisual
*/
int X11DRV_ChoosePixelFormat(X11DRV_PDEVICE *physDev,
const PIXELFORMATDESCRIPTOR *ppfd) {
int att_list[64];
int att_pos = 0;
GLXFBConfig* cfgs = NULL;
int ret = 0;
if (!has_opengl()) {
ERR("No libGL on this box - disabling OpenGL support !\n");
return 0;
}
if (TRACE_ON(opengl)) {
TRACE("(%p,%p)\n", physDev, ppfd);
dump_PIXELFORMATDESCRIPTOR((const 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_ADD2(ppfd->dwFlags & PFD_DOUBLEBUFFER, GLX_DOUBLEBUFFER, TRUE);
TEST_AND_ADD1(ppfd->dwFlags & PFD_STEREO, GLX_STEREO);
if (ppfd->iPixelType == PFD_TYPE_COLORINDEX) {
ADD2(GLX_BUFFER_SIZE, ppfd->cColorBits);
}
if (ppfd->iPixelType == PFD_TYPE_RGBA) {
ADD2(GLX_RENDER_TYPE, GLX_RGBA_BIT);
ADD2(GLX_BUFFER_SIZE, ppfd->cColorBits);
if (32 == ppfd->cDepthBits) {
/**
* for 32 bpp depth buffers force to use 24.
* needed as some drivers don't support 32bpp
*/
TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, 24);
} else {
TEST_AND_ADD2(ppfd->cDepthBits, GLX_DEPTH_SIZE, ppfd->cDepthBits);
}
TEST_AND_ADD2(ppfd->cAlphaBits, GLX_ALPHA_SIZE, ppfd->cAlphaBits);
}
TEST_AND_ADD2(ppfd->cStencilBits, GLX_STENCIL_SIZE, ppfd->cStencilBits);
TEST_AND_ADD2(ppfd->cAuxBuffers, GLX_AUX_BUFFERS, ppfd->cAuxBuffers);
/* These flags are not supported yet...
ADD2(GLX_ACCUM_SIZE, ppfd->cAccumBits);
*/
att_list[att_pos] = None;
wine_tsx11_lock();
{
int nCfgs = 0;
int gl_test = 0;
int fmt_id;
GLXFBConfig* cfgs_fmt = NULL;
int nCfgs_fmt = 0;
int tmp_fmt_id;
UINT it_fmt;
cfgs = pglXChooseFBConfig(gdi_display, DefaultScreen(gdi_display), att_list, &nCfgs);
if (NULL == cfgs || 0 == nCfgs) {
ERR("glXChooseFBConfig returns NULL (glError: %d)\n", pglGetError());
ret = 0;
goto choose_exit;
}
gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs[0], GLX_FBCONFIG_ID, &fmt_id);
if (gl_test) {
ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
ret = 0;
goto choose_exit;
}
cfgs_fmt = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &nCfgs_fmt);
if (NULL == cfgs_fmt) {
ERR("Failed to get All FB Configs\n");
ret = 0;
goto choose_exit;
}
for (it_fmt = 0; it_fmt < nCfgs_fmt; ++it_fmt) {
gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs_fmt[it_fmt], GLX_FBCONFIG_ID, &tmp_fmt_id);
if (gl_test) {
ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
XFree(cfgs_fmt);
ret = 0;
goto choose_exit;
}
if (fmt_id == tmp_fmt_id) {
ret = it_fmt + 1;
break ;
}
}
if (it_fmt == nCfgs_fmt) {
ERR("Failed to get valid fmt for FBCONFIG_ID(%d)\n", fmt_id);
ret = 0;
}
XFree(cfgs_fmt);
}
choose_exit:
if (NULL != cfgs) XFree(cfgs);
wine_tsx11_unlock();
return ret;
}
/**
* 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;
GLXFBConfig* cfgs = NULL;
GLXFBConfig cur;
int nCfgs = 0;
int ret = 0;
if (!has_opengl()) {
ERR("No libGL on this box - disabling OpenGL support !\n");
return 0;
}
TRACE("(%p,%d,%d,%p)\n", physDev, iPixelFormat, nBytes, ppfd);
wine_tsx11_lock();
cfgs = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &nCfgs);
wine_tsx11_unlock();
if (NULL == cfgs || 0 == nCfgs) {
ERR("unexpected iPixelFormat(%d), returns NULL\n", iPixelFormat);
return 0; /* unespected error */
}
if (ppfd == NULL) {
/* The application is only querying the number of visuals */
wine_tsx11_lock();
if (NULL != cfgs) XFree(cfgs);
wine_tsx11_unlock();
return nCfgs;
}
if (nBytes < sizeof(PIXELFORMATDESCRIPTOR)) {
ERR("Wrong structure size !\n");
/* Should set error */
return 0;
}
if (nCfgs < iPixelFormat) {
ERR("unexpected iPixelFormat(%d) > nFormats(%d), returns NULL\n", iPixelFormat, nCfgs);
return 0; /* unespected error */
}
ret = nCfgs;
cur = cfgs[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();
pglXGetFBConfigAttrib(gdi_display, cur, GLX_DOUBLEBUFFER, &value); if (value) ppfd->dwFlags |= PFD_DOUBLEBUFFER;
pglXGetFBConfigAttrib(gdi_display, cur, GLX_STEREO, &value); if (value) ppfd->dwFlags |= PFD_STEREO;
/* Pixel type */
pglXGetFBConfigAttrib(gdi_display, cur, GLX_RENDER_TYPE, &value);
if (value & GLX_RGBA_BIT)
ppfd->iPixelType = PFD_TYPE_RGBA;
else
ppfd->iPixelType = PFD_TYPE_COLORINDEX;
/* Color bits */
pglXGetFBConfigAttrib(gdi_display, cur, GLX_BUFFER_SIZE, &value);
ppfd->cColorBits = value;
/* Red, green, blue and alpha bits / shifts */
if (ppfd->iPixelType == PFD_TYPE_RGBA) {
pglXGetFBConfigAttrib(gdi_display, cur, GLX_RED_SIZE, &rb);
pglXGetFBConfigAttrib(gdi_display, cur, GLX_GREEN_SIZE, &gb);
pglXGetFBConfigAttrib(gdi_display, cur, GLX_BLUE_SIZE, &bb);
pglXGetFBConfigAttrib(gdi_display, cur, 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 */
pglXGetFBConfigAttrib(gdi_display, cur, GLX_DEPTH_SIZE, &value);
ppfd->cDepthBits = value;
/* stencil bits */
pglXGetFBConfigAttrib(gdi_display, cur, 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);
}
wine_tsx11_lock();
if (NULL != cfgs) XFree(cfgs);
wine_tsx11_unlock();
return ret;
}
/**
* 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 (!has_opengl()) {
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;
/* In order to support OpenGL or D3D, we require a double-buffered visual and stencil buffer support, */
int dblBuf[] = {GLX_RGBA,GLX_DEPTH_SIZE, 16, GLX_STENCIL_SIZE, 8, GLX_DOUBLEBUFFER, None};
if (!has_opengl()) return NULL;
wine_tsx11_lock();
visual = pglXChooseVisual(display, DefaultScreen(display), dblBuf);
wine_tsx11_unlock();
if (visual == NULL) {
/* fallback to no stencil */
int dblBuf2[] = {GLX_RGBA,GLX_DEPTH_SIZE, 16, GLX_DOUBLEBUFFER, None};
WARN("Failed to get a visual with at least 8 bits of stencil\n");
wine_tsx11_lock();
visual = pglXChooseVisual(display, DefaultScreen(display), dblBuf2);
wine_tsx11_unlock();
if (visual == NULL) {
/* This should only happen if we cannot find a match with a depth size 16 */
FIXME("Failed to find a suitable visual\n");
}
}
TRACE("Visual ID %lx Chosen\n",visual->visualid);
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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