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wine/dlls/opengl32/wgl_ext.c
Raphael Junqueira 695f316c3a - implements WGL_ARB_render_texture support (no more stubs) 
- pass glXGetProcAddressARB ptr to initialise function
2005-03-10 11:13:33 +00:00

515 lines
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/* Support for window-specific OpenGL extensions.
*
* Copyright (c) 2004 Lionel Ulmer
* Copyright (c) 2005 Alex Woods
* Copyright (c) 2005 Raphael Junqueira
*
* 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 <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winerror.h"
#include "wgl.h"
#include "wgl_ext.h"
#include "opengl_ext.h"
#include "wine/library.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(opengl);
/* x11drv GDI escapes */
#define X11DRV_ESCAPE 6789
enum x11drv_escape_codes
{
X11DRV_GET_DISPLAY, /* get X11 display for a DC */
X11DRV_GET_DRAWABLE, /* get current drawable for a DC */
X11DRV_GET_FONT, /* get current X font for a DC */
X11DRV_SET_DRAWABLE, /* set current drawable for a DC */
};
struct x11drv_escape_set_drawable
{
enum x11drv_escape_codes code; /* escape code (X11DRV_SET_DRAWABLE) */
Drawable drawable; /* X drawable */
int mode; /* ClipByChildren or IncludeInferiors */
POINT org; /* origin of DC relative to drawable */
POINT drawable_org; /* origin of drawable relative to screen */
};
/* retrieve the X display to use on a given DC */
inline static Display *get_display( HDC hdc )
{
Display *display;
enum x11drv_escape_codes escape = X11DRV_GET_DISPLAY;
if (!ExtEscape( hdc, X11DRV_ESCAPE, sizeof(escape), (LPCSTR)&escape,
sizeof(display), (LPSTR)&display )) display = NULL;
return display;
}
inline static void set_drawable( HDC hdc, Drawable drawable )
{
struct x11drv_escape_set_drawable escape;
escape.code = X11DRV_SET_DRAWABLE;
escape.drawable = drawable;
escape.mode = IncludeInferiors;
escape.org.x = escape.org.y = 0;
escape.drawable_org.x = escape.drawable_org.y = 0;
ExtEscape( hdc, X11DRV_ESCAPE, sizeof(escape), (LPCSTR)&escape, 0, NULL );
}
/* Some WGL extensions... */
static const char *WGL_extensions_base = "WGL_ARB_extensions_string WGL_EXT_extensions_string";
static char *WGL_extensions = NULL;
/**
* Extensions-query functions
*
* @TODO: use a struct to handle parameters
*/
BOOL query_function_multisample(glXGetProcAddressARB_t proc, const char *gl_version, const char *gl_extensions,
const char* glx_version, const char *glx_extensions,
const char *server_glx_extensions, const char *client_glx_extensions)
{
return NULL != strstr("GLX_ARB_multisample", glx_extensions);
}
BOOL query_function_pbuffer(glXGetProcAddressARB_t proc, const char *gl_version, const char *gl_extensions,
const char* glx_version, const char *glx_extensions,
const char *server_glx_extensions, const char *client_glx_extensions)
{
FIXME("gl_version is: \"%s\"\n", gl_version);
FIXME("glx_exts is: \"%s\"\n", glx_extensions);
return 0 <= strcmp("1.3", glx_version) || NULL != strstr(glx_extensions, "GLX_SGIX_pbuffer");
}
BOOL query_function_pixel_format(glXGetProcAddressARB_t proc, const char *gl_version, const char *gl_extensions,
const char* glx_version, const char *glx_extensions,
const char *server_glx_extensions, const char *client_glx_extensions)
{
return TRUE;
}
/** GLX_ARB_render_texture */
Bool (*p_glXBindTexImageARB)(Display *dpy, GLXPbuffer pbuffer, int buffer);
Bool (*p_glXReleaseTexImageARB)(Display *dpy, GLXPbuffer pbuffer, int buffer);
Bool (*p_glXDrawableAttribARB)(Display *dpy, GLXDrawable draw, const int *attribList);
BOOL query_function_render_texture(glXGetProcAddressARB_t proc, const char *gl_version, const char *gl_extensions,
const char* glx_version, const char *glx_extensions,
const char *server_glx_extensions, const char *client_glx_extensions)
{
BOOL bTest = (0 <= strcmp("1.3", glx_version) || NULL != strstr(glx_extensions, "GLX_SGIX_pbuffer") || NULL != strstr(glx_extensions, "GLX_ARB_render_texture"));
if (bTest) {
p_glXBindTexImageARB = proc("glXBindTexImageARB");
p_glXReleaseTexImageARB = proc("glXReleaseTexImageARB");
p_glXDrawableAttribARB = proc("glXDrawableAttribARB");
bTest = (NULL != p_glXBindTexImageARB && NULL != p_glXReleaseTexImageARB && NULL != p_glXDrawableAttribARB);
}
return bTest;
}
/***********************************************************************
* wglGetExtensionsStringEXT(OPENGL32.@)
*/
const char * WINAPI wglGetExtensionsStringEXT(void) {
TRACE("() returning \"%s\"\n", WGL_extensions);
return WGL_extensions;
}
/***********************************************************************
* wglGetExtensionsStringARB(OPENGL32.@)
*/
const char * WINAPI wglGetExtensionsStringARB(HDC hdc) {
TRACE("() returning \"%s\"\n", WGL_extensions);
return WGL_extensions;
}
static int swap_interval = 1;
/***********************************************************************
* wglSwapIntervalEXT(OPENGL32.@)
*/
BOOL WINAPI wglSwapIntervalEXT(int interval) {
FIXME("(%d),stub!\n", interval);
swap_interval = interval;
return TRUE;
}
/***********************************************************************
* wglGetSwapIntervalEXT(OPENGL32.@)
*/
int WINAPI wglGetSwapIntervalEXT(VOID) {
FIXME("(),stub!\n");
return swap_interval;
}
typedef struct wine_glpbuffer {
Drawable drawable;
Display* display;
int pixelFormat;
int width;
int height;
int* attribList;
HDC hdc;
} Wine_GLPBuffer;
#define PUSH1(attribs,att) attribs[nAttribs++] = (att);
#define PUSH2(attribs,att,value) attribs[nAttribs++] = (att); attribs[nAttribs++] = (value);
#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000
#define WGL_DRAW_TO_WINDOW_ARB 0x2001
#define WGL_DRAW_TO_BITMAP_ARB 0x2002
#define WGL_ACCELERATION_ARB 0x2003
#define WGL_NEED_PALETTE_ARB 0x2004
#define WGL_NEED_SYSTEM_PALETTE_ARB 0x2005
#define WGL_SWAP_LAYER_BUFFERS_ARB 0x2006
#define WGL_SWAP_METHOD_ARB 0x2007
#define WGL_NUMBER_OVERLAYS_ARB 0x2008
#define WGL_NUMBER_UNDERLAYS_ARB 0x2009
#define WGL_TRANSPARENT_ARB 0x200A
#define WGL_TRANSPARENT_RED_VALUE_ARB 0x2037
#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038
#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039
#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A
#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B
#define WGL_SHARE_DEPTH_ARB 0x200C
#define WGL_SHARE_STENCIL_ARB 0x200D
#define WGL_SHARE_ACCUM_ARB 0x200E
#define WGL_SUPPORT_GDI_ARB 0x200F
#define WGL_SUPPORT_OPENGL_ARB 0x2010
#define WGL_DOUBLE_BUFFER_ARB 0x2011
#define WGL_STEREO_ARB 0x2012
#define WGL_PIXEL_TYPE_ARB 0x2013
#define WGL_COLOR_BITS_ARB 0x2014
#define WGL_RED_BITS_ARB 0x2015
#define WGL_RED_SHIFT_ARB 0x2016
#define WGL_GREEN_BITS_ARB 0x2017
#define WGL_GREEN_SHIFT_ARB 0x2018
#define WGL_BLUE_BITS_ARB 0x2019
#define WGL_BLUE_SHIFT_ARB 0x201A
#define WGL_ALPHA_BITS_ARB 0x201B
#define WGL_ALPHA_SHIFT_ARB 0x201C
#define WGL_ACCUM_BITS_ARB 0x201D
#define WGL_ACCUM_RED_BITS_ARB 0x201E
#define WGL_ACCUM_GREEN_BITS_ARB 0x201F
#define WGL_ACCUM_BLUE_BITS_ARB 0x2020
#define WGL_ACCUM_ALPHA_BITS_ARB 0x2021
#define WGL_DEPTH_BITS_ARB 0x2022
#define WGL_STENCIL_BITS_ARB 0x2023
#define WGL_AUX_BUFFERS_ARB 0x2024
#define WGL_PBUFFER_WIDTH_ARB 0x2034
#define WGL_PBUFFER_HEIGHT_ARB 0x2035
#define WGL_PBUFFER_LOST_ARB 0x2036
#if 0 /* not used yet */
static unsigned ConvertAttribGLXtoWGL(const int* iWGLAttr, int* oGLXAttr) {
unsigned nAttribs = 0;
FIXME("not yet implemented!\n");
return nAttribs;
}
#endif
static unsigned ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr) {
unsigned nAttribs = 0;
unsigned cur = 0;
int pop;
while (0 != iWGLAttr[cur]) {
switch (iWGLAttr[cur]) {
case WGL_COLOR_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_BUFFER_SIZE, pop);
break;
case WGL_ALPHA_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_ALPHA_SIZE, pop);
break;
case WGL_DEPTH_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_DEPTH_SIZE, pop);
break;
case WGL_STENCIL_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_STENCIL_SIZE, pop);
break;
case WGL_DOUBLE_BUFFER_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_DOUBLEBUFFER, pop);
break;
case WGL_DRAW_TO_WINDOW_ARB:
case WGL_SUPPORT_OPENGL_ARB:
case WGL_ACCELERATION_ARB:
/*
case WGL_SAMPLE_BUFFERS_ARB:
case WGL_SAMPLES_ARB:
*/
default:
break;
}
++cur;
}
return nAttribs;
}
GLboolean WINAPI wglGetPixelFormatAttribivARB(HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues)
{
TRACE("(%p, %d, %d, %d, %p, %p)\n", hdc, iPixelFormat, iLayerPlane, nAttributes, piAttributes, piValues);
return GL_TRUE;
}
GLboolean WINAPI wglGetPixelFormatAttribfvARB(HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues)
{
TRACE("(%p, %d, %d, %d, %p, %p)\n", hdc, iPixelFormat, iLayerPlane, nAttributes, piAttributes, pfValues);
return GL_TRUE;
}
GLboolean WINAPI wglChoosePixelFormatARB(HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats)
{
Display* display = get_display( hdc );
GLXFBConfig* cfgs = NULL;
int nCfgs = 0;
int attribs[256];
unsigned nAttribs;
UINT it;
TRACE("(%p, %p, %p, %d, %p, %p): hackish\n", hdc, piAttribIList, pfAttribFList, nMaxFormats, piFormats, nNumFormats);
if (NULL != pfAttribFList) {
FIXME("unused pfAttribFList\n");
}
nAttribs = ConvertAttribWGLtoGLX(piAttribIList, attribs);
PUSH1(attribs, None);
cfgs = glXChooseFBConfig(display, DefaultScreen(display), attribs, &nCfgs);
for (it = 0; it < nMaxFormats && it < nCfgs; ++it) {
piFormats[it] = it;
}
*nNumFormats = it;
return GL_TRUE;
}
#define HPBUFFERARB void *
HPBUFFERARB WINAPI wglCreatePbufferARB(HDC hdc, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList)
{
Wine_GLPBuffer* object = NULL;
Display* display = get_display( hdc );
GLXFBConfig* cfgs = NULL;
int nCfgs = 0;
int attribs[256];
unsigned nAttribs;
TRACE("(%p, %d, %d, %d, %p)\n", hdc, iPixelFormat, iWidth, iHeight, piAttribList);
object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(Wine_GLPBuffer));
object->hdc = hdc;
object->display = display;
object->width = iWidth;
object->height = iHeight;
object->pixelFormat = iPixelFormat;
nAttribs = ConvertAttribWGLtoGLX(piAttribList, attribs);
PUSH1(attribs, None);
cfgs = glXChooseFBConfig(display, DefaultScreen(display), attribs, &nCfgs);
if (nCfgs < iPixelFormat) return NULL; /* unespected error */
--nAttribs; /** append more to attribs now we have fbConfig */
PUSH2(attribs, GLX_PBUFFER_WIDTH, iWidth);
PUSH2(attribs, GLX_PBUFFER_HEIGHT, iHeight);
PUSH1(attribs, None);
object->drawable = glXCreatePbuffer(display, cfgs[iPixelFormat], attribs);
TRACE("drawable as %p\n", (void*) object->drawable);
TRACE("->(%p)\n", object);
return (HPBUFFERARB) object;
}
HDC WINAPI wglGetPbufferDCARB(HPBUFFERARB hPbuffer)
{
Wine_GLPBuffer* object = (Wine_GLPBuffer*) hPbuffer;
HDC hDC;
hDC = CreateCompatibleDC(object->hdc);
set_drawable(hDC, object->drawable); /* works ?? */
TRACE("(%p)\n", hPbuffer);
return hDC;
}
int WINAPI wglReleasePbufferDCARB(HPBUFFERARB hPbuffer, HDC hdc)
{
TRACE("(%p, %p)\n", hPbuffer, hdc);
DeleteDC(hdc);
return 0;
}
GLboolean WINAPI wglDestroyPbufferARB(HPBUFFERARB hPbuffer)
{
Wine_GLPBuffer* object = (Wine_GLPBuffer*) hPbuffer;
TRACE("(%p)\n", hPbuffer);
glXDestroyPbuffer(object->display, object->drawable);
HeapFree(GetProcessHeap(), 0, object);
return GL_TRUE;
}
GLboolean WINAPI wglQueryPbufferARB(HPBUFFERARB hPbuffer, int iAttribute, int *piValue)
{
Wine_GLPBuffer* object = (Wine_GLPBuffer*) hPbuffer;
TRACE("(%p, %d, %p)\n", hPbuffer, iAttribute, piValue);
/*glXQueryDrawable(object->display, object->drawable);*/
switch (iAttribute) {
case WGL_PBUFFER_WIDTH_ARB:
glXQueryDrawable(object->display, object->drawable, GLX_WIDTH, piValue);
break;
case WGL_PBUFFER_HEIGHT_ARB:
glXQueryDrawable(object->display, object->drawable, GLX_HEIGHT, piValue);
break;
default:
break;
}
return GL_TRUE;
}
GLboolean WINAPI wglBindTexImageARB(HPBUFFERARB hPbuffer, int iBuffer)
{
Wine_GLPBuffer* object = (Wine_GLPBuffer*) hPbuffer;
TRACE("(%p, %d)\n", hPbuffer, iBuffer);
return p_glXBindTexImageARB(object->display, object->drawable, iBuffer);
}
GLboolean WINAPI wglReleaseTexImageARB(HPBUFFERARB hPbuffer, int iBuffer)
{
Wine_GLPBuffer* object = (Wine_GLPBuffer*) hPbuffer;
TRACE("(%p, %d)\n", hPbuffer, iBuffer);
return p_glXReleaseTexImageARB(object->display, object->drawable, iBuffer);
}
GLboolean WINAPI wglSetPbufferAttribARB(HPBUFFERARB hPbuffer, const int *piAttribList)
{
Wine_GLPBuffer* object = (Wine_GLPBuffer*) hPbuffer;
WARN("(%p, %p): alpha-testing, report any problem\n", hPbuffer, piAttribList);
return p_glXDrawableAttribARB(object->display, object->drawable, piAttribList);
}
static const struct {
const char *name;
BOOL (*query_function)(glXGetProcAddressARB_t proc, const char *gl_version, const char *gl_extensions,
const char *glx_version, const char *glx_extensions,
const char *server_glx_extensions, const char *client_glx_extensions);
} extension_list[] = {
{ "WGL_ARB_multisample", query_function_multisample },
{ "WGL_ARB_pbuffer", query_function_pbuffer },
{ "WGL_ARB_pixel_format" , query_function_pixel_format },
{ "WGL_ARB_render_texture", query_function_render_texture }
};
/* Used to initialize the WGL extension string at DLL loading */
void wgl_ext_initialize_extensions(Display *display, int screen, glXGetProcAddressARB_t proc)
{
int size = strlen(WGL_extensions_base);
const char *glx_extensions = glXQueryExtensionsString(display, screen);
const char *server_glx_extensions = glXQueryServerString(display, screen, GLX_EXTENSIONS);
const char *client_glx_extensions = glXGetClientString(display, GLX_EXTENSIONS);
const char *gl_extensions = (const char *) glGetString(GL_EXTENSIONS);
const char *gl_version = (const char *) glGetString(GL_VERSION);
const char *glx_version = glXGetClientString(display, GLX_VERSION);
int i;
TRACE("GL version : %s.\n", debugstr_a(gl_version));
TRACE("GL exts : %s.\n", debugstr_a(gl_extensions));
TRACE("GLX exts : %s.\n", debugstr_a(glx_extensions));
TRACE("Server GLX exts : %s.\n", debugstr_a(server_glx_extensions));
TRACE("Client GLX exts : %s.\n", debugstr_a(client_glx_extensions));
for (i = 0; i < (sizeof(extension_list) / sizeof(extension_list[0])); i++) {
if (extension_list[i].query_function(proc, gl_version, gl_extensions,
glx_version, glx_extensions,
server_glx_extensions, client_glx_extensions)) {
size += strlen(extension_list[i].name) + 1;
}
}
/* For the moment, only 'base' extensions are supported. */
WGL_extensions = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size + 1);
if (WGL_extensions == NULL) {
WGL_extensions = (char *) WGL_extensions_base;
} else {
strcpy(WGL_extensions, WGL_extensions_base);
for (i = 0; i < (sizeof(extension_list) / sizeof(extension_list[0])); i++) {
if (extension_list[i].query_function(proc, gl_version, gl_extensions,
glx_version, glx_extensions,
server_glx_extensions, client_glx_extensions)) {
strcat(WGL_extensions, " ");
strcat(WGL_extensions, extension_list[i].name);
}
}
}
TRACE("Supporting following WGL extensions : %s.\n", debugstr_a(WGL_extensions));
}
void wgl_ext_finalize_extensions(void)
{
if (WGL_extensions != WGL_extensions_base) {
HeapFree(GetProcessHeap(), 0, WGL_extensions);
}
}
/*
* Putting this at the end to prevent having to write the prototypes :-)
*
* @WARNING: this list must be ordered by name
*/
WGL_extension wgl_extension_registry[] = {
{ "wglBindTexImageARB", (void *) wglBindTexImageARB, NULL, NULL},
{ "wglChoosePixelFormatARB", (void *) wglChoosePixelFormatARB, NULL, NULL},
{ "wglCreatePbufferARB", (void *) wglCreatePbufferARB, NULL, NULL},
{ "wglDestroyPbufferARB", (void *) wglDestroyPbufferARB, NULL, NULL},
{ "wglGetExtensionsStringARB", (void *) wglGetExtensionsStringARB, NULL, NULL},
{ "wglGetExtensionsStringEXT", (void *) wglGetExtensionsStringEXT, NULL, NULL},
{ "wglGetPbufferDCARB", (void *) wglGetPbufferDCARB, NULL, NULL},
{ "wglGetPixelFormatAttribfvARB", (void *) wglGetPixelFormatAttribfvARB, NULL, NULL},
{ "wglGetPixelFormatAttribivARB", (void *) wglGetPixelFormatAttribivARB, NULL, NULL},
{ "wglGetSwapIntervalEXT", (void *) wglGetSwapIntervalEXT, NULL, NULL},
{ "wglQueryPbufferARB", (void *) wglQueryPbufferARB, NULL, NULL},
{ "wglReleasePbufferDCARB", (void *) wglReleasePbufferDCARB, NULL, NULL},
{ "wglReleaseTexImageARB", (void *) wglReleaseTexImageARB, NULL, NULL},
{ "wglSetPbufferAttribARB", (void *) wglSetPbufferAttribARB, NULL, NULL},
{ "wglSwapIntervalEXT", (void *) wglSwapIntervalEXT, NULL, NULL}
};
int wgl_extension_registry_size = sizeof(wgl_extension_registry) / sizeof(wgl_extension_registry[0]);
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