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wine/dlls/winex11.drv/opengl.c
Alexandre Julliard c2d53af33b winex11: Don't use uninitialized variables (Coverity).
2013-03-26 17:15:53 +01:00

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/*
* X11DRV OpenGL functions
*
* Copyright 2000 Lionel Ulmer
* Copyright 2005 Alex Woods
* Copyright 2005 Raphael Junqueira
* Copyright 2006-2009 Roderick Colenbrander
* Copyright 2006 Tomas Carnecky
* Copyright 2012 Alexandre Julliard
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
#include "x11drv.h"
#include "xcomposite.h"
#include "winternl.h"
#include "wine/library.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wgl);
#ifdef SONAME_LIBGL
WINE_DECLARE_DEBUG_CHANNEL(winediag);
#include "wine/wgl.h"
#include "wine/wgl_driver.h"
#include "wine/wglext.h"
typedef struct __GLXcontextRec *GLXContext;
typedef struct __GLXFBConfigRec *GLXFBConfig;
typedef XID GLXPixmap;
typedef XID GLXDrawable;
typedef XID GLXFBConfigID;
typedef XID GLXContextID;
typedef XID GLXWindow;
typedef XID GLXPbuffer;
#define GLX_USE_GL 1
#define GLX_BUFFER_SIZE 2
#define GLX_LEVEL 3
#define GLX_RGBA 4
#define GLX_DOUBLEBUFFER 5
#define GLX_STEREO 6
#define GLX_AUX_BUFFERS 7
#define GLX_RED_SIZE 8
#define GLX_GREEN_SIZE 9
#define GLX_BLUE_SIZE 10
#define GLX_ALPHA_SIZE 11
#define GLX_DEPTH_SIZE 12
#define GLX_STENCIL_SIZE 13
#define GLX_ACCUM_RED_SIZE 14
#define GLX_ACCUM_GREEN_SIZE 15
#define GLX_ACCUM_BLUE_SIZE 16
#define GLX_ACCUM_ALPHA_SIZE 17
#define GLX_BAD_SCREEN 1
#define GLX_BAD_ATTRIBUTE 2
#define GLX_NO_EXTENSION 3
#define GLX_BAD_VISUAL 4
#define GLX_BAD_CONTEXT 5
#define GLX_BAD_VALUE 6
#define GLX_BAD_ENUM 7
#define GLX_VENDOR 1
#define GLX_VERSION 2
#define GLX_EXTENSIONS 3
#define GLX_CONFIG_CAVEAT 0x20
#define GLX_DONT_CARE 0xFFFFFFFF
#define GLX_X_VISUAL_TYPE 0x22
#define GLX_TRANSPARENT_TYPE 0x23
#define GLX_TRANSPARENT_INDEX_VALUE 0x24
#define GLX_TRANSPARENT_RED_VALUE 0x25
#define GLX_TRANSPARENT_GREEN_VALUE 0x26
#define GLX_TRANSPARENT_BLUE_VALUE 0x27
#define GLX_TRANSPARENT_ALPHA_VALUE 0x28
#define GLX_WINDOW_BIT 0x00000001
#define GLX_PIXMAP_BIT 0x00000002
#define GLX_PBUFFER_BIT 0x00000004
#define GLX_AUX_BUFFERS_BIT 0x00000010
#define GLX_FRONT_LEFT_BUFFER_BIT 0x00000001
#define GLX_FRONT_RIGHT_BUFFER_BIT 0x00000002
#define GLX_BACK_LEFT_BUFFER_BIT 0x00000004
#define GLX_BACK_RIGHT_BUFFER_BIT 0x00000008
#define GLX_DEPTH_BUFFER_BIT 0x00000020
#define GLX_STENCIL_BUFFER_BIT 0x00000040
#define GLX_ACCUM_BUFFER_BIT 0x00000080
#define GLX_NONE 0x8000
#define GLX_SLOW_CONFIG 0x8001
#define GLX_TRUE_COLOR 0x8002
#define GLX_DIRECT_COLOR 0x8003
#define GLX_PSEUDO_COLOR 0x8004
#define GLX_STATIC_COLOR 0x8005
#define GLX_GRAY_SCALE 0x8006
#define GLX_STATIC_GRAY 0x8007
#define GLX_TRANSPARENT_RGB 0x8008
#define GLX_TRANSPARENT_INDEX 0x8009
#define GLX_VISUAL_ID 0x800B
#define GLX_SCREEN 0x800C
#define GLX_NON_CONFORMANT_CONFIG 0x800D
#define GLX_DRAWABLE_TYPE 0x8010
#define GLX_RENDER_TYPE 0x8011
#define GLX_X_RENDERABLE 0x8012
#define GLX_FBCONFIG_ID 0x8013
#define GLX_RGBA_TYPE 0x8014
#define GLX_COLOR_INDEX_TYPE 0x8015
#define GLX_MAX_PBUFFER_WIDTH 0x8016
#define GLX_MAX_PBUFFER_HEIGHT 0x8017
#define GLX_MAX_PBUFFER_PIXELS 0x8018
#define GLX_PRESERVED_CONTENTS 0x801B
#define GLX_LARGEST_PBUFFER 0x801C
#define GLX_WIDTH 0x801D
#define GLX_HEIGHT 0x801E
#define GLX_EVENT_MASK 0x801F
#define GLX_DAMAGED 0x8020
#define GLX_SAVED 0x8021
#define GLX_WINDOW 0x8022
#define GLX_PBUFFER 0x8023
#define GLX_PBUFFER_HEIGHT 0x8040
#define GLX_PBUFFER_WIDTH 0x8041
#define GLX_RGBA_BIT 0x00000001
#define GLX_COLOR_INDEX_BIT 0x00000002
#define GLX_PBUFFER_CLOBBER_MASK 0x08000000
/** GLX_ARB_multisample */
#define GLX_SAMPLE_BUFFERS_ARB 100000
#define GLX_SAMPLES_ARB 100001
/** GLX_ARB_framebuffer_sRGB */
#define GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT 0x20B2
/** GLX_EXT_fbconfig_packed_float */
#define GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT 0x20B1
#define GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT 0x00000008
/** GLX_ARB_create_context */
#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
#define GLX_CONTEXT_FLAGS_ARB 0x2094
/** GLX_ARB_create_context_profile */
#define GLX_CONTEXT_PROFILE_MASK_ARB 0x9126
/** GLX_ATI_pixel_format_float */
#define GLX_RGBA_FLOAT_ATI_BIT 0x00000100
/** GLX_ARB_pixel_format_float */
#define GLX_RGBA_FLOAT_BIT 0x00000004
#define GLX_RGBA_FLOAT_TYPE 0x20B9
/** GLX_NV_float_buffer */
#define GLX_FLOAT_COMPONENTS_NV 0x20B0
struct WineGLInfo {
const char *glVersion;
char *glExtensions;
int glxVersion[2];
const char *glxServerVersion;
const char *glxServerVendor;
const char *glxServerExtensions;
const char *glxClientVersion;
const char *glxClientVendor;
const char *glxClientExtensions;
const char *glxExtensions;
BOOL glxDirect;
char wglExtensions[4096];
};
struct wgl_pixel_format
{
GLXFBConfig fbconfig;
int fmt_id;
int render_type;
DWORD dwFlags; /* We store some PFD_* flags in here for emulated bitmap formats */
};
struct wgl_context
{
HDC hdc;
BOOL has_been_current;
BOOL sharing;
BOOL gl3_context;
XVisualInfo *vis;
const struct wgl_pixel_format *fmt;
int numAttribs; /* This is needed for delaying wglCreateContextAttribsARB */
int attribList[16]; /* This is needed for delaying wglCreateContextAttribsARB */
GLXContext ctx;
Drawable drawables[2];
BOOL refresh_drawables;
struct list entry;
};
struct wgl_pbuffer
{
Drawable drawable;
const struct wgl_pixel_format* fmt;
int width;
int height;
int* attribList;
int use_render_texture; /* This is also the internal texture format */
int texture_bind_target;
int texture_bpp;
GLint texture_format;
GLuint texture_target;
GLenum texture_type;
GLuint texture;
int texture_level;
};
enum dc_gl_type
{
DC_GL_NONE, /* no GL support (pixel format not set yet) */
DC_GL_WINDOW, /* normal top-level window */
DC_GL_CHILD_WIN, /* child window using XComposite */
DC_GL_PIXMAP_WIN, /* child window using intermediate pixmap */
DC_GL_PBUFFER /* pseudo memory DC using a PBuffer */
};
struct gl_drawable
{
enum dc_gl_type type; /* type of GL surface */
Drawable drawable; /* drawable for rendering to the client area */
Pixmap pixmap; /* base pixmap if drawable is a GLXPixmap */
Colormap colormap; /* colormap used for the drawable */
const struct wgl_pixel_format *format; /* pixel format for the drawable */
XVisualInfo *visual; /* information about the GL visual */
RECT rect; /* drawable rect, relative to whole window drawable */
};
/* X context to associate a struct gl_drawable to an hwnd */
static XContext gl_hwnd_context;
/* X context to associate a struct gl_drawable to a pbuffer hdc */
static XContext gl_pbuffer_context;
static const struct gdi_dc_funcs glxdrv_funcs;
static inline struct glx_physdev *get_glxdrv_dev( PHYSDEV dev )
{
return (struct glx_physdev *)dev;
}
static struct list context_list = LIST_INIT( context_list );
static struct WineGLInfo WineGLInfo = { 0 };
static struct wgl_pixel_format *pixel_formats;
static int nb_pixel_formats, nb_onscreen_formats;
static int use_render_texture_emulation = 1;
static BOOL has_swap_control;
static int swap_interval = 1;
static CRITICAL_SECTION context_section;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &context_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": context_section") }
};
static CRITICAL_SECTION context_section = { &critsect_debug, -1, 0, 0, 0, 0 };
static struct opengl_funcs opengl_funcs;
#define USE_GL_FUNC(name) #name,
static const char *opengl_func_names[] = { ALL_WGL_FUNCS };
#undef USE_GL_FUNC
static void X11DRV_WineGL_LoadExtensions(void);
static void init_pixel_formats( Display *display );
static BOOL glxRequireVersion(int requiredVersion);
static void dump_PIXELFORMATDESCRIPTOR(const PIXELFORMATDESCRIPTOR *ppfd) {
TRACE(" - size / version : %d / %d\n", ppfd->nSize, ppfd->nVersion);
TRACE(" - dwFlags : ");
#define TEST_AND_DUMP(t,tv) if ((t) & (tv)) TRACE(#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);
/* PFD_SUPPORT_COMPOSITION is new in Vista, it is similar to composition
* under X e.g. COMPOSITE + GLX_EXT_TEXTURE_FROM_PIXMAP. */
TEST_AND_DUMP(ppfd->dwFlags, PFD_SUPPORT_COMPOSITION);
#undef TEST_AND_DUMP
TRACE("\n");
TRACE(" - iPixelType : ");
switch (ppfd->iPixelType) {
case PFD_TYPE_RGBA: TRACE("PFD_TYPE_RGBA"); break;
case PFD_TYPE_COLORINDEX: TRACE("PFD_TYPE_COLORINDEX"); break;
}
TRACE("\n");
TRACE(" - Color : %d\n", ppfd->cColorBits);
TRACE(" - Red : %d\n", ppfd->cRedBits);
TRACE(" - Green : %d\n", ppfd->cGreenBits);
TRACE(" - Blue : %d\n", ppfd->cBlueBits);
TRACE(" - Alpha : %d\n", ppfd->cAlphaBits);
TRACE(" - Accum : %d\n", ppfd->cAccumBits);
TRACE(" - Depth : %d\n", ppfd->cDepthBits);
TRACE(" - Stencil : %d\n", ppfd->cStencilBits);
TRACE(" - Aux : %d\n", ppfd->cAuxBuffers);
TRACE(" - iLayerType : ");
switch (ppfd->iLayerType) {
case PFD_MAIN_PLANE: TRACE("PFD_MAIN_PLANE"); break;
case PFD_OVERLAY_PLANE: TRACE("PFD_OVERLAY_PLANE"); break;
case (BYTE)PFD_UNDERLAY_PLANE: TRACE("PFD_UNDERLAY_PLANE"); break;
}
TRACE("\n");
}
#define PUSH1(attribs,att) do { attribs[nAttribs++] = (att); } while (0)
#define PUSH2(attribs,att,value) do { attribs[nAttribs++] = (att); attribs[nAttribs++] = (value); } while(0)
/* GLX 1.0 */
static XVisualInfo* (*pglXChooseVisual)( Display *dpy, int screen, int *attribList );
static GLXContext (*pglXCreateContext)( Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct );
static void (*pglXDestroyContext)( Display *dpy, GLXContext ctx );
static Bool (*pglXMakeCurrent)( Display *dpy, GLXDrawable drawable, GLXContext ctx);
static void (*pglXCopyContext)( Display *dpy, GLXContext src, GLXContext dst, unsigned long mask );
static void (*pglXSwapBuffers)( Display *dpy, GLXDrawable drawable );
static GLXPixmap (*pglXCreateGLXPixmap)( Display *dpy, XVisualInfo *visual, Pixmap pixmap );
static void (*pglXDestroyGLXPixmap)( Display *dpy, GLXPixmap pixmap );
static Bool (*pglXQueryExtension)( Display *dpy, int *errorb, int *event );
static Bool (*pglXQueryVersion)( Display *dpy, int *maj, int *min );
static Bool (*pglXIsDirect)( Display *dpy, GLXContext ctx );
static int (*pglXGetConfig)( Display *dpy, XVisualInfo *visual, int attrib, int *value );
static GLXContext (*pglXGetCurrentContext)( void );
static GLXDrawable (*pglXGetCurrentDrawable)( void );
/* GLX 1.1 */
static const char *(*pglXQueryExtensionsString)( Display *dpy, int screen );
static const char *(*pglXQueryServerString)( Display *dpy, int screen, int name );
static const char *(*pglXGetClientString)( Display *dpy, int name );
/* GLX 1.3 */
static GLXFBConfig *(*pglXChooseFBConfig)( Display *dpy, int screen, const int *attribList, int *nitems );
static int (*pglXGetFBConfigAttrib)( Display *dpy, GLXFBConfig config, int attribute, int *value );
static GLXFBConfig *(*pglXGetFBConfigs)( Display *dpy, int screen, int *nelements );
static XVisualInfo *(*pglXGetVisualFromFBConfig)( Display *dpy, GLXFBConfig config );
static GLXPbuffer (*pglXCreatePbuffer)( Display *dpy, GLXFBConfig config, const int *attribList );
static void (*pglXDestroyPbuffer)( Display *dpy, GLXPbuffer pbuf );
static void (*pglXQueryDrawable)( Display *dpy, GLXDrawable draw, int attribute, unsigned int *value );
static GLXContext (*pglXCreateNewContext)( Display *dpy, GLXFBConfig config, int renderType, GLXContext shareList, Bool direct );
static Bool (*pglXMakeContextCurrent)( Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx );
/* GLX Extensions */
static GLXContext (*pglXCreateContextAttribsARB)(Display *dpy, GLXFBConfig config, GLXContext share_context, Bool direct, const int *attrib_list);
static void* (*pglXGetProcAddressARB)(const GLubyte *);
static int (*pglXSwapIntervalSGI)(int);
/* NV GLX Extension */
static void* (*pglXAllocateMemoryNV)(GLsizei size, GLfloat readfreq, GLfloat writefreq, GLfloat priority);
static void (*pglXFreeMemoryNV)(GLvoid *pointer);
/* MESA GLX Extensions */
static void (*pglXCopySubBufferMESA)(Display *dpy, GLXDrawable drawable, int x, int y, int width, int height);
/* Standard OpenGL */
static void (*pglFinish)(void);
static void (*pglFlush)(void);
static void wglFinish(void);
static void wglFlush(void);
/* check if the extension is present in the list */
static BOOL has_extension( const char *list, const char *ext )
{
size_t len = strlen( ext );
while (list)
{
while (*list == ' ') list++;
if (!strncmp( list, ext, len ) && (!list[len] || list[len] == ' ')) return TRUE;
list = strchr( list, ' ' );
}
return FALSE;
}
static int GLXErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
{
/* In the future we might want to find the exact X or GLX error to report back to the app */
return 1;
}
static BOOL X11DRV_WineGL_InitOpenglInfo(void)
{
int screen = DefaultScreen(gdi_display);
Window win = 0, root = 0;
const char *gl_renderer;
const char* str;
XVisualInfo *vis;
GLXContext ctx = NULL;
XSetWindowAttributes attr;
BOOL ret = FALSE;
int attribList[] = {GLX_RGBA, GLX_DOUBLEBUFFER, None};
attr.override_redirect = True;
attr.colormap = None;
attr.border_pixel = 0;
vis = pglXChooseVisual(gdi_display, screen, attribList);
if (vis) {
#ifdef __i386__
WORD old_fs = wine_get_fs();
/* Create a GLX Context. Without one we can't query GL information */
ctx = pglXCreateContext(gdi_display, vis, None, GL_TRUE);
if (wine_get_fs() != old_fs)
{
wine_set_fs( old_fs );
ERR( "%%fs register corrupted, probably broken ATI driver, disabling OpenGL.\n" );
ERR( "You need to set the \"UseFastTls\" option to \"2\" in your X config file.\n" );
goto done;
}
#else
ctx = pglXCreateContext(gdi_display, vis, None, GL_TRUE);
#endif
}
if (!ctx) goto done;
root = RootWindow( gdi_display, vis->screen );
if (vis->visual != DefaultVisual( gdi_display, vis->screen ))
attr.colormap = XCreateColormap( gdi_display, root, vis->visual, AllocNone );
if ((win = XCreateWindow( gdi_display, root, -1, -1, 1, 1, 0, vis->depth, InputOutput,
vis->visual, CWBorderPixel | CWOverrideRedirect | CWColormap, &attr )))
XMapWindow( gdi_display, win );
else
win = root;
if(pglXMakeCurrent(gdi_display, win, ctx) == 0)
{
ERR_(winediag)( "Unable to activate OpenGL context, most likely your OpenGL drivers haven't been installed correctly\n" );
goto done;
}
gl_renderer = (const char *)opengl_funcs.gl.p_glGetString(GL_RENDERER);
WineGLInfo.glVersion = (const char *) opengl_funcs.gl.p_glGetString(GL_VERSION);
str = (const char *) opengl_funcs.gl.p_glGetString(GL_EXTENSIONS);
WineGLInfo.glExtensions = HeapAlloc(GetProcessHeap(), 0, strlen(str)+1);
strcpy(WineGLInfo.glExtensions, str);
/* Get the common GLX version supported by GLX client and server ( major/minor) */
pglXQueryVersion(gdi_display, &WineGLInfo.glxVersion[0], &WineGLInfo.glxVersion[1]);
WineGLInfo.glxServerVersion = pglXQueryServerString(gdi_display, screen, GLX_VERSION);
WineGLInfo.glxServerVendor = pglXQueryServerString(gdi_display, screen, GLX_VENDOR);
WineGLInfo.glxServerExtensions = pglXQueryServerString(gdi_display, screen, GLX_EXTENSIONS);
WineGLInfo.glxClientVersion = pglXGetClientString(gdi_display, GLX_VERSION);
WineGLInfo.glxClientVendor = pglXGetClientString(gdi_display, GLX_VENDOR);
WineGLInfo.glxClientExtensions = pglXGetClientString(gdi_display, GLX_EXTENSIONS);
WineGLInfo.glxExtensions = pglXQueryExtensionsString(gdi_display, screen);
WineGLInfo.glxDirect = pglXIsDirect(gdi_display, ctx);
TRACE("GL version : %s.\n", WineGLInfo.glVersion);
TRACE("GL renderer : %s.\n", gl_renderer);
TRACE("GLX version : %d.%d.\n", WineGLInfo.glxVersion[0], WineGLInfo.glxVersion[1]);
TRACE("Server GLX version : %s.\n", WineGLInfo.glxServerVersion);
TRACE("Server GLX vendor: : %s.\n", WineGLInfo.glxServerVendor);
TRACE("Client GLX version : %s.\n", WineGLInfo.glxClientVersion);
TRACE("Client GLX vendor: : %s.\n", WineGLInfo.glxClientVendor);
TRACE("Direct rendering enabled: %s\n", WineGLInfo.glxDirect ? "True" : "False");
if(!WineGLInfo.glxDirect)
{
int fd = ConnectionNumber(gdi_display);
struct sockaddr_un uaddr;
unsigned int uaddrlen = sizeof(struct sockaddr_un);
/* In general indirect rendering on a local X11 server indicates a driver problem.
* Detect a local X11 server by checking whether the X11 socket is a Unix socket.
*/
if(!getsockname(fd, (struct sockaddr *)&uaddr, &uaddrlen) && uaddr.sun_family == AF_UNIX)
ERR_(winediag)("Direct rendering is disabled, most likely your OpenGL drivers "
"haven't been installed correctly (using GL renderer %s, version %s).\n",
debugstr_a(gl_renderer), debugstr_a(WineGLInfo.glVersion));
}
else
{
/* In general you would expect that if direct rendering is returned, that you receive hardware
* accelerated OpenGL rendering. The definition of direct rendering is that rendering is performed
* client side without sending all GL commands to X using the GLX protocol. When Mesa falls back to
* software rendering, it shows direct rendering.
*
* Depending on the cause of software rendering a different rendering string is shown. In case Mesa fails
* to load a DRI module 'Software Rasterizer' is returned. When Mesa is compiled as a OpenGL reference driver
* it shows 'Mesa X11'.
*/
if(!strcmp(gl_renderer, "Software Rasterizer") || !strcmp(gl_renderer, "Mesa X11"))
ERR_(winediag)("The Mesa OpenGL driver is using software rendering, most likely your OpenGL "
"drivers haven't been installed correctly (using GL renderer %s, version %s).\n",
debugstr_a(gl_renderer), debugstr_a(WineGLInfo.glVersion));
}
ret = TRUE;
done:
if(vis) XFree(vis);
if(ctx) {
pglXMakeCurrent(gdi_display, None, NULL);
pglXDestroyContext(gdi_display, ctx);
}
if (win != root) XDestroyWindow( gdi_display, win );
if (attr.colormap) XFreeColormap( gdi_display, attr.colormap );
if (!ret) ERR(" couldn't initialize OpenGL, expect problems\n");
return ret;
}
static BOOL has_opengl(void)
{
static int init_done;
static void *opengl_handle;
char buffer[200];
int error_base, event_base;
unsigned int i;
if (init_done) return (opengl_handle != NULL);
init_done = 1;
/* No need to load any other libraries as according to the ABI, libGL should be self-sufficient
and include all dependencies */
opengl_handle = wine_dlopen(SONAME_LIBGL, RTLD_NOW|RTLD_GLOBAL, buffer, sizeof(buffer));
if (opengl_handle == NULL)
{
ERR( "Failed to load libGL: %s\n", buffer );
ERR( "OpenGL support is disabled.\n");
return FALSE;
}
for (i = 0; i < sizeof(opengl_func_names)/sizeof(opengl_func_names[0]); i++)
{
if (!(((void **)&opengl_funcs.gl)[i] = wine_dlsym( opengl_handle, opengl_func_names[i], NULL, 0 )))
{
ERR( "%s not found in libGL, disabling OpenGL.\n", opengl_func_names[i] );
goto failed;
}
}
/* redirect some standard OpenGL functions */
#define REDIRECT(func) \
do { p##func = opengl_funcs.gl.p_##func; opengl_funcs.gl.p_##func = w##func; } while(0)
REDIRECT( glFinish );
REDIRECT( glFlush );
#undef REDIRECT
pglXGetProcAddressARB = wine_dlsym(opengl_handle, "glXGetProcAddressARB", NULL, 0);
if (pglXGetProcAddressARB == NULL) {
ERR("Could not find glXGetProcAddressARB in libGL, disabling OpenGL.\n");
goto failed;
}
#define LOAD_FUNCPTR(f) do if((p##f = (void*)pglXGetProcAddressARB((const unsigned char*)#f)) == NULL) \
{ \
ERR( "%s not found in libGL, disabling OpenGL.\n", #f ); \
goto failed; \
} while(0)
/* GLX 1.0 */
LOAD_FUNCPTR(glXChooseVisual);
LOAD_FUNCPTR(glXCopyContext);
LOAD_FUNCPTR(glXCreateContext);
LOAD_FUNCPTR(glXCreateGLXPixmap);
LOAD_FUNCPTR(glXGetCurrentContext);
LOAD_FUNCPTR(glXGetCurrentDrawable);
LOAD_FUNCPTR(glXDestroyContext);
LOAD_FUNCPTR(glXDestroyGLXPixmap);
LOAD_FUNCPTR(glXGetConfig);
LOAD_FUNCPTR(glXIsDirect);
LOAD_FUNCPTR(glXMakeCurrent);
LOAD_FUNCPTR(glXSwapBuffers);
LOAD_FUNCPTR(glXQueryExtension);
LOAD_FUNCPTR(glXQueryVersion);
/* GLX 1.1 */
LOAD_FUNCPTR(glXGetClientString);
LOAD_FUNCPTR(glXQueryExtensionsString);
LOAD_FUNCPTR(glXQueryServerString);
/* GLX 1.3 */
LOAD_FUNCPTR(glXCreatePbuffer);
LOAD_FUNCPTR(glXCreateNewContext);
LOAD_FUNCPTR(glXDestroyPbuffer);
LOAD_FUNCPTR(glXMakeContextCurrent);
LOAD_FUNCPTR(glXGetFBConfigs);
#undef LOAD_FUNCPTR
/* It doesn't matter if these fail. They'll only be used if the driver reports
the associated extension is available (and if a driver reports the extension
is available but fails to provide the functions, it's quite broken) */
#define LOAD_FUNCPTR(f) p##f = pglXGetProcAddressARB((const GLubyte *)#f)
/* ARB GLX Extension */
LOAD_FUNCPTR(glXCreateContextAttribsARB);
/* SGI GLX Extension */
LOAD_FUNCPTR(glXSwapIntervalSGI);
/* NV GLX Extension */
LOAD_FUNCPTR(glXAllocateMemoryNV);
LOAD_FUNCPTR(glXFreeMemoryNV);
#undef LOAD_FUNCPTR
if(!X11DRV_WineGL_InitOpenglInfo()) goto failed;
if (pglXQueryExtension(gdi_display, &error_base, &event_base)) {
TRACE("GLX is up and running error_base = %d\n", error_base);
} else {
ERR( "GLX extension is missing, disabling OpenGL.\n" );
goto failed;
}
gl_hwnd_context = XUniqueContext();
gl_pbuffer_context = XUniqueContext();
/* In case of GLX you have direct and indirect rendering. Most of the time direct rendering is used
* as in general only that is hardware accelerated. In some cases like in case of remote X indirect
* rendering is used.
*
* The main problem for our OpenGL code is that we need certain GLX calls but their presence
* depends on the reported GLX client / server version and on the client / server extension list.
* Those don't have to be the same.
*
* In general the server GLX information lists the capabilities in case of indirect rendering.
* When direct rendering is used, the OpenGL client library is responsible for which GLX calls are
* available and in that case the client GLX informat can be used.
* OpenGL programs should use the 'intersection' of both sets of information which is advertised
* in the GLX version/extension list. When a program does this it works for certain for both
* direct and indirect rendering.
*
* The problem we are having in this area is that ATI's Linux drivers are broken. For some reason
* they haven't added some very important GLX extensions like GLX_SGIX_fbconfig to their client
* extension list which causes this extension not to be listed. (Wine requires this extension).
* ATI advertises a GLX client version of 1.3 which implies that this fbconfig extension among
* pbuffers is around.
*
* In order to provide users of Ati's proprietary drivers with OpenGL support, we need to detect
* the ATI drivers and from then on use GLX client information for them.
*/
if(glxRequireVersion(3)) {
pglXChooseFBConfig = pglXGetProcAddressARB((const GLubyte *) "glXChooseFBConfig");
pglXGetFBConfigAttrib = pglXGetProcAddressARB((const GLubyte *) "glXGetFBConfigAttrib");
pglXGetVisualFromFBConfig = pglXGetProcAddressARB((const GLubyte *) "glXGetVisualFromFBConfig");
pglXQueryDrawable = pglXGetProcAddressARB((const GLubyte *) "glXQueryDrawable");
} else if (has_extension( WineGLInfo.glxExtensions, "GLX_SGIX_fbconfig")) {
pglXChooseFBConfig = pglXGetProcAddressARB((const GLubyte *) "glXChooseFBConfigSGIX");
pglXGetFBConfigAttrib = pglXGetProcAddressARB((const GLubyte *) "glXGetFBConfigAttribSGIX");
pglXGetVisualFromFBConfig = pglXGetProcAddressARB((const GLubyte *) "glXGetVisualFromFBConfigSGIX");
/* The mesa libGL client library seems to forward glXQueryDrawable to the Xserver, so only
* enable this function when the Xserver understand GLX 1.3 or newer
*/
pglXQueryDrawable = NULL;
} else if(strcmp("ATI", WineGLInfo.glxClientVendor) == 0) {
TRACE("Overriding ATI GLX capabilities!\n");
pglXChooseFBConfig = pglXGetProcAddressARB((const GLubyte *) "glXChooseFBConfig");
pglXGetFBConfigAttrib = pglXGetProcAddressARB((const GLubyte *) "glXGetFBConfigAttrib");
pglXGetVisualFromFBConfig = pglXGetProcAddressARB((const GLubyte *) "glXGetVisualFromFBConfig");
pglXQueryDrawable = pglXGetProcAddressARB((const GLubyte *) "glXQueryDrawable");
/* Use client GLX information in case of the ATI drivers. We override the
* capabilities over here and not somewhere else as ATI might better their
* life in the future. In case they release proper drivers this block of
* code won't be called. */
WineGLInfo.glxExtensions = WineGLInfo.glxClientExtensions;
} else {
ERR(" glx_version is %s and GLX_SGIX_fbconfig extension is unsupported. Expect problems.\n", WineGLInfo.glxServerVersion);
}
if (has_extension( WineGLInfo.glxExtensions, "GLX_MESA_copy_sub_buffer")) {
pglXCopySubBufferMESA = pglXGetProcAddressARB((const GLubyte *) "glXCopySubBufferMESA");
}
X11DRV_WineGL_LoadExtensions();
init_pixel_formats( gdi_display );
return TRUE;
failed:
wine_dlclose(opengl_handle, NULL, 0);
opengl_handle = NULL;
return FALSE;
}
static int describeContext( struct wgl_context *ctx ) {
int tmp;
int ctx_vis_id;
TRACE(" Context %p have (vis:%p):\n", ctx, ctx->vis);
pglXGetFBConfigAttrib(gdi_display, ctx->fmt->fbconfig, GLX_FBCONFIG_ID, &tmp);
TRACE(" - FBCONFIG_ID 0x%x\n", tmp);
pglXGetFBConfigAttrib(gdi_display, ctx->fmt->fbconfig, GLX_VISUAL_ID, &tmp);
TRACE(" - VISUAL_ID 0x%x\n", tmp);
ctx_vis_id = tmp;
return ctx_vis_id;
}
static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, struct wgl_pbuffer* pbuf) {
int nAttribs = 0;
unsigned cur = 0;
int pop;
int drawattrib = 0;
int nvfloatattrib = GLX_DONT_CARE;
int pixelattrib = GLX_DONT_CARE;
/* The list of WGL attributes is allowed to be NULL. We don't return here for NULL
* because we need to do fixups for GLX_DRAWABLE_TYPE/GLX_RENDER_TYPE/GLX_FLOAT_COMPONENTS_NV. */
while (iWGLAttr && 0 != iWGLAttr[cur]) {
TRACE("pAttr[%d] = %x\n", cur, iWGLAttr[cur]);
switch (iWGLAttr[cur]) {
case WGL_AUX_BUFFERS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_AUX_BUFFERS, pop);
TRACE("pAttr[%d] = GLX_AUX_BUFFERS: %d\n", cur, pop);
break;
case WGL_COLOR_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_BUFFER_SIZE, pop);
TRACE("pAttr[%d] = GLX_BUFFER_SIZE: %d\n", cur, pop);
break;
case WGL_BLUE_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_BLUE_SIZE, pop);
TRACE("pAttr[%d] = GLX_BLUE_SIZE: %d\n", cur, pop);
break;
case WGL_RED_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_RED_SIZE, pop);
TRACE("pAttr[%d] = GLX_RED_SIZE: %d\n", cur, pop);
break;
case WGL_GREEN_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_GREEN_SIZE, pop);
TRACE("pAttr[%d] = GLX_GREEN_SIZE: %d\n", cur, pop);
break;
case WGL_ALPHA_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_ALPHA_SIZE, pop);
TRACE("pAttr[%d] = GLX_ALPHA_SIZE: %d\n", cur, pop);
break;
case WGL_DEPTH_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_DEPTH_SIZE, pop);
TRACE("pAttr[%d] = GLX_DEPTH_SIZE: %d\n", cur, pop);
break;
case WGL_STENCIL_BITS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_STENCIL_SIZE, pop);
TRACE("pAttr[%d] = GLX_STENCIL_SIZE: %d\n", cur, pop);
break;
case WGL_DOUBLE_BUFFER_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_DOUBLEBUFFER, pop);
TRACE("pAttr[%d] = GLX_DOUBLEBUFFER: %d\n", cur, pop);
break;
case WGL_STEREO_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_STEREO, pop);
TRACE("pAttr[%d] = GLX_STEREO: %d\n", cur, pop);
break;
case WGL_PIXEL_TYPE_ARB:
pop = iWGLAttr[++cur];
TRACE("pAttr[%d] = WGL_PIXEL_TYPE_ARB: %d\n", cur, pop);
switch (pop) {
case WGL_TYPE_COLORINDEX_ARB: pixelattrib = GLX_COLOR_INDEX_BIT; break ;
case WGL_TYPE_RGBA_ARB: pixelattrib = GLX_RGBA_BIT; break ;
/* This is the same as WGL_TYPE_RGBA_FLOAT_ATI but the GLX constants differ, only the ARB GLX one is widely supported so use that */
case WGL_TYPE_RGBA_FLOAT_ATI: pixelattrib = GLX_RGBA_FLOAT_BIT; break ;
case WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT: pixelattrib = GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT; break ;
default:
ERR("unexpected PixelType(%x)\n", pop);
pop = 0;
}
break;
case WGL_SUPPORT_GDI_ARB:
/* This flag is set in a pixel format */
pop = iWGLAttr[++cur];
TRACE("pAttr[%d] = WGL_SUPPORT_GDI_ARB: %d\n", cur, pop);
break;
case WGL_DRAW_TO_BITMAP_ARB:
/* This flag is set in a pixel format */
pop = iWGLAttr[++cur];
TRACE("pAttr[%d] = WGL_DRAW_TO_BITMAP_ARB: %d\n", cur, pop);
break;
case WGL_DRAW_TO_WINDOW_ARB:
pop = iWGLAttr[++cur];
TRACE("pAttr[%d] = WGL_DRAW_TO_WINDOW_ARB: %d\n", cur, pop);
/* GLX_DRAWABLE_TYPE flags need to be OR'd together. See below. */
if (pop) {
drawattrib |= GLX_WINDOW_BIT;
}
break;
case WGL_DRAW_TO_PBUFFER_ARB:
pop = iWGLAttr[++cur];
TRACE("pAttr[%d] = WGL_DRAW_TO_PBUFFER_ARB: %d\n", cur, pop);
/* GLX_DRAWABLE_TYPE flags need to be OR'd together. See below. */
if (pop) {
drawattrib |= GLX_PBUFFER_BIT;
}
break;
case WGL_ACCELERATION_ARB:
/* This flag is set in a pixel format */
pop = iWGLAttr[++cur];
TRACE("pAttr[%d] = WGL_ACCELERATION_ARB: %d\n", cur, pop);
break;
case WGL_SUPPORT_OPENGL_ARB:
pop = iWGLAttr[++cur];
/** nothing to do, if we are here, supposing support Accelerated OpenGL */
TRACE("pAttr[%d] = WGL_SUPPORT_OPENGL_ARB: %d\n", cur, pop);
break;
case WGL_SWAP_METHOD_ARB:
pop = iWGLAttr[++cur];
/* For now we ignore this and just return SWAP_EXCHANGE */
TRACE("pAttr[%d] = WGL_SWAP_METHOD_ARB: %#x\n", cur, pop);
break;
case WGL_PBUFFER_LARGEST_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_LARGEST_PBUFFER, pop);
TRACE("pAttr[%d] = GLX_LARGEST_PBUFFER: %x\n", cur, pop);
break;
case WGL_SAMPLE_BUFFERS_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_SAMPLE_BUFFERS_ARB, pop);
TRACE("pAttr[%d] = GLX_SAMPLE_BUFFERS_ARB: %x\n", cur, pop);
break;
case WGL_SAMPLES_ARB:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_SAMPLES_ARB, pop);
TRACE("pAttr[%d] = GLX_SAMPLES_ARB: %x\n", cur, pop);
break;
case WGL_TEXTURE_FORMAT_ARB:
case WGL_TEXTURE_TARGET_ARB:
case WGL_MIPMAP_TEXTURE_ARB:
TRACE("WGL_render_texture Attributes: %x as %x\n", iWGLAttr[cur], iWGLAttr[cur + 1]);
pop = iWGLAttr[++cur];
if (NULL == pbuf) {
ERR("trying to use GLX_Pbuffer Attributes without Pbuffer (was %x)\n", iWGLAttr[cur]);
}
if (!use_render_texture_emulation) {
if (WGL_NO_TEXTURE_ARB != pop) {
ERR("trying to use WGL_render_texture Attributes without support (was %x)\n", iWGLAttr[cur]);
return -1; /** error: don't support it */
} else {
drawattrib |= GLX_PBUFFER_BIT;
}
}
break ;
case WGL_FLOAT_COMPONENTS_NV:
nvfloatattrib = iWGLAttr[++cur];
TRACE("pAttr[%d] = WGL_FLOAT_COMPONENTS_NV: %x\n", cur, nvfloatattrib);
break ;
case WGL_BIND_TO_TEXTURE_DEPTH_NV:
case WGL_BIND_TO_TEXTURE_RGB_ARB:
case WGL_BIND_TO_TEXTURE_RGBA_ARB:
case WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV:
case WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV:
case WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV:
case WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV:
pop = iWGLAttr[++cur];
/** cannot be converted, see direct handling on
* - wglGetPixelFormatAttribivARB
* TODO: wglChoosePixelFormat
*/
break ;
case WGL_FRAMEBUFFER_SRGB_CAPABLE_EXT:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT, pop);
TRACE("pAttr[%d] = GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT: %x\n", cur, pop);
break ;
case WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT:
pop = iWGLAttr[++cur];
PUSH2(oGLXAttr, GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT, pop);
TRACE("pAttr[%d] = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT: %x\n", cur, pop);
break ;
default:
FIXME("unsupported %x WGL Attribute\n", iWGLAttr[cur]);
break;
}
++cur;
}
/* By default glXChooseFBConfig defaults to GLX_WINDOW_BIT. wglChoosePixelFormatARB searches through
* all formats. Unless drawattrib is set to a non-zero value override it with GLX_DONT_CARE, so that
* pixmap and pbuffer formats appear as well. */
if (!drawattrib) drawattrib = GLX_DONT_CARE;
PUSH2(oGLXAttr, GLX_DRAWABLE_TYPE, drawattrib);
TRACE("pAttr[?] = GLX_DRAWABLE_TYPE: %#x\n", drawattrib);
/* By default glXChooseFBConfig uses GLX_RGBA_BIT as the default value. Since wglChoosePixelFormatARB
* searches in all formats we have to do the same. For this reason we set GLX_RENDER_TYPE to
* GLX_DONT_CARE unless it is overridden. */
PUSH2(oGLXAttr, GLX_RENDER_TYPE, pixelattrib);
TRACE("pAttr[?] = GLX_RENDER_TYPE: %#x\n", pixelattrib);
/* Set GLX_FLOAT_COMPONENTS_NV all the time */
if (has_extension(WineGLInfo.glxExtensions, "GLX_NV_float_buffer")) {
PUSH2(oGLXAttr, GLX_FLOAT_COMPONENTS_NV, nvfloatattrib);
TRACE("pAttr[?] = GLX_FLOAT_COMPONENTS_NV: %#x\n", nvfloatattrib);
}
return nAttribs;
}
static int get_render_type_from_fbconfig(Display *display, GLXFBConfig fbconfig)
{
int render_type=0, render_type_bit;
pglXGetFBConfigAttrib(display, fbconfig, GLX_RENDER_TYPE, &render_type_bit);
switch(render_type_bit)
{
case GLX_RGBA_BIT:
render_type = GLX_RGBA_TYPE;
break;
case GLX_COLOR_INDEX_BIT:
render_type = GLX_COLOR_INDEX_TYPE;
break;
case GLX_RGBA_FLOAT_BIT:
render_type = GLX_RGBA_FLOAT_TYPE;
break;
case GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT:
render_type = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT;
break;
default:
ERR("Unknown render_type: %x\n", render_type_bit);
}
return render_type;
}
/* Check whether a fbconfig is suitable for Windows-style bitmap rendering */
static BOOL check_fbconfig_bitmap_capability(Display *display, GLXFBConfig fbconfig)
{
int dbuf, value;
pglXGetFBConfigAttrib(display, fbconfig, GLX_DOUBLEBUFFER, &dbuf);
pglXGetFBConfigAttrib(gdi_display, fbconfig, GLX_DRAWABLE_TYPE, &value);
/* Windows only supports bitmap rendering on single buffered formats, further the fbconfig needs to have
* the GLX_PIXMAP_BIT set. */
return !dbuf && (value & GLX_PIXMAP_BIT);
}
static void init_pixel_formats( Display *display )
{
struct wgl_pixel_format *list;
int size = 0, onscreen_size = 0;
int fmt_id, nCfgs, i, run, bmp_formats;
GLXFBConfig* cfgs;
XVisualInfo *visinfo;
cfgs = pglXGetFBConfigs(display, DefaultScreen(display), &nCfgs);
if (NULL == cfgs || 0 == nCfgs) {
if(cfgs != NULL) XFree(cfgs);
ERR("glXChooseFBConfig returns NULL\n");
return;
}
/* Bitmap rendering on Windows implies the use of the Microsoft GDI software renderer.
* Further most GLX drivers only offer pixmap rendering using indirect rendering (except for modern drivers which support 'AIGLX' / composite).
* Indirect rendering can indicate software rendering (on Nvidia it is hw accelerated)
* Since bitmap rendering implies the use of software rendering we can safely use indirect rendering for bitmaps.
*
* Below we count the number of formats which are suitable for bitmap rendering. Windows restricts bitmap rendering to single buffered formats.
*/
for(i=0, bmp_formats=0; i<nCfgs; i++)
{
if(check_fbconfig_bitmap_capability(display, cfgs[i]))
bmp_formats++;
}
TRACE("Found %d bitmap capable fbconfigs\n", bmp_formats);
list = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, (nCfgs + bmp_formats) * sizeof(*list));
/* Fill the pixel format list. Put onscreen formats at the top and offscreen ones at the bottom.
* Do this as GLX doesn't guarantee that the list is sorted */
for(run=0; run < 2; run++)
{
for(i=0; i<nCfgs; i++) {
pglXGetFBConfigAttrib(display, cfgs[i], GLX_FBCONFIG_ID, &fmt_id);
visinfo = pglXGetVisualFromFBConfig(display, cfgs[i]);
/* The first run we only add onscreen formats (ones which have an associated X Visual).
* The second run we only set offscreen formats. */
if(!run && visinfo)
{
/* We implement child window rendering using offscreen buffers (using composite or an XPixmap).
* The contents is copied to the destination using XCopyArea. For the copying to work
* the depth of the source and destination window should be the same. In general this should
* not be a problem for OpenGL as drivers only advertise formats with a similar depth (or no depth).
* As of the introduction of composition managers at least Nvidia now also offers ARGB visuals
* with a depth of 32 in addition to the default 24 bit. In order to prevent BadMatch errors we only
* list formats with the same depth. */
if(visinfo->depth != default_visual.depth)
{
XFree(visinfo);
continue;
}
TRACE("Found onscreen format FBCONFIG_ID 0x%x corresponding to iPixelFormat %d at GLX index %d\n", fmt_id, size+1, i);
list[size].fbconfig = cfgs[i];
list[size].fmt_id = fmt_id;
list[size].render_type = get_render_type_from_fbconfig(display, cfgs[i]);
list[size].dwFlags = 0;
size++;
onscreen_size++;
/* Clone a format if it is bitmap capable for indirect rendering to bitmaps */
if(check_fbconfig_bitmap_capability(display, cfgs[i]))
{
TRACE("Found bitmap capable format FBCONFIG_ID 0x%x corresponding to iPixelFormat %d at GLX index %d\n", fmt_id, size+1, i);
list[size].fbconfig = cfgs[i];
list[size].fmt_id = fmt_id;
list[size].render_type = get_render_type_from_fbconfig(display, cfgs[i]);
list[size].dwFlags = PFD_DRAW_TO_BITMAP | PFD_SUPPORT_GDI | PFD_GENERIC_FORMAT;
size++;
onscreen_size++;
}
} else if(run && !visinfo) {
int window_drawable=0;
pglXGetFBConfigAttrib(gdi_display, cfgs[i], GLX_DRAWABLE_TYPE, &window_drawable);
/* Recent Nvidia drivers and DRI drivers offer window drawable formats without a visual.
* This are formats like 16-bit rgb on a 24-bit desktop. In order to support these formats
* onscreen we would have to use glXCreateWindow instead of XCreateWindow. Further it will
* likely make our child window opengl rendering more complicated since likely you can't use
* XCopyArea on a GLX Window.
* For now ignore fbconfigs which are window drawable but lack a visual. */
if(window_drawable & GLX_WINDOW_BIT)
{
TRACE("Skipping FBCONFIG_ID 0x%x as an offscreen format because it is window_drawable\n", fmt_id);
continue;
}
TRACE("Found offscreen format FBCONFIG_ID 0x%x corresponding to iPixelFormat %d at GLX index %d\n", fmt_id, size+1, i);
list[size].fbconfig = cfgs[i];
list[size].fmt_id = fmt_id;
list[size].render_type = get_render_type_from_fbconfig(display, cfgs[i]);
list[size].dwFlags = 0;
size++;
}
if (visinfo) XFree(visinfo);
}
}
XFree(cfgs);
pixel_formats = list;
nb_pixel_formats = size;
nb_onscreen_formats = onscreen_size;
}
static inline BOOL is_valid_pixel_format( int format )
{
return format > 0 && format <= nb_pixel_formats;
}
static inline BOOL is_onscreen_pixel_format( int format )
{
return format > 0 && format <= nb_onscreen_formats;
}
static inline int pixel_format_index( const struct wgl_pixel_format *format )
{
return format - pixel_formats + 1;
}
/* GLX can advertise dozens of different pixelformats including offscreen and onscreen ones.
* In our WGL implementation we only support a subset of these formats namely the format of
* Wine's main visual and offscreen formats (if they are available).
* This function converts a WGL format to its corresponding GLX one.
*/
static const struct wgl_pixel_format *get_pixel_format(Display *display, int iPixelFormat, BOOL AllowOffscreen)
{
/* Check if the pixelformat is valid. Note that it is legal to pass an invalid
* iPixelFormat in case of probing the number of pixelformats.
*/
if (is_valid_pixel_format( iPixelFormat ) &&
(is_onscreen_pixel_format( iPixelFormat ) || AllowOffscreen)) {
TRACE("Returning fmt_id=%#x for iPixelFormat=%d\n",
pixel_formats[iPixelFormat-1].fmt_id, iPixelFormat);
return &pixel_formats[iPixelFormat-1];
}
return NULL;
}
/* Mark any allocated context using the glx drawable 'old' to use 'new' */
static void mark_drawable_dirty(Drawable old, Drawable new)
{
struct wgl_context *ctx;
LIST_FOR_EACH_ENTRY( ctx, &context_list, struct wgl_context, entry )
{
if (old == ctx->drawables[0]) {
ctx->drawables[0] = new;
ctx->refresh_drawables = TRUE;
}
if (old == ctx->drawables[1]) {
ctx->drawables[1] = new;
ctx->refresh_drawables = TRUE;
}
}
}
/* Given the current context, make sure its drawable is sync'd */
static inline void sync_context(struct wgl_context *context)
{
if (context->refresh_drawables) {
if (glxRequireVersion(3))
pglXMakeContextCurrent(gdi_display, context->drawables[0],
context->drawables[1], context->ctx);
else
pglXMakeCurrent(gdi_display, context->drawables[0], context->ctx);
context->refresh_drawables = FALSE;
}
}
static struct gl_drawable *get_gl_drawable( HWND hwnd, HDC hdc )
{
struct gl_drawable *gl;
EnterCriticalSection( &context_section );
if (hwnd && !XFindContext( gdi_display, (XID)hwnd, gl_hwnd_context, (char **)&gl )) return gl;
if (hdc && !XFindContext( gdi_display, (XID)hdc, gl_pbuffer_context, (char **)&gl )) return gl;
LeaveCriticalSection( &context_section );
return NULL;
}
static void release_gl_drawable( struct gl_drawable *gl )
{
if (gl) LeaveCriticalSection( &context_section );
}
static GLXContext create_glxcontext(Display *display, struct wgl_context *context, GLXContext shareList)
{
GLXContext ctx;
/* We use indirect rendering for rendering to bitmaps. See get_formats for a comment about this. */
BOOL indirect = !(context->fmt->dwFlags & PFD_DRAW_TO_BITMAP);
if(context->gl3_context)
{
if(context->numAttribs)
ctx = pglXCreateContextAttribsARB(gdi_display, context->fmt->fbconfig, shareList, indirect, context->attribList);
else
ctx = pglXCreateContextAttribsARB(gdi_display, context->fmt->fbconfig, shareList, indirect, NULL);
}
else if(context->vis)
ctx = pglXCreateContext(gdi_display, context->vis, shareList, indirect);
else /* Create a GLX Context for a pbuffer */
ctx = pglXCreateNewContext(gdi_display, context->fmt->fbconfig, context->fmt->render_type, shareList, TRUE);
return ctx;
}
/***********************************************************************
* free_gl_drawable
*/
static void free_gl_drawable( struct gl_drawable *gl )
{
switch (gl->type)
{
case DC_GL_CHILD_WIN:
XDestroyWindow( gdi_display, gl->drawable );
XFreeColormap( gdi_display, gl->colormap );
break;
case DC_GL_PIXMAP_WIN:
pglXDestroyGLXPixmap( gdi_display, gl->drawable );
XFreePixmap( gdi_display, gl->pixmap );
break;
default:
break;
}
if (gl->visual) XFree( gl->visual );
HeapFree( GetProcessHeap(), 0, gl );
}
/***********************************************************************
* create_gl_drawable
*/
static BOOL create_gl_drawable( HWND hwnd, HWND parent, struct gl_drawable *gl )
{
gl->drawable = 0;
if (GetAncestor( hwnd, GA_PARENT ) == GetDesktopWindow()) /* top-level window */
{
struct x11drv_win_data *data = get_win_data( hwnd );
if (data)
{
gl->type = DC_GL_WINDOW;
gl->drawable = create_client_window( data, gl->visual );
release_win_data( data );
}
}
#ifdef SONAME_LIBXCOMPOSITE
else if(usexcomposite)
{
static Window dummy_parent;
XSetWindowAttributes attrib;
attrib.override_redirect = True;
if (!dummy_parent)
{
dummy_parent = XCreateWindow( gdi_display, root_window, -1, -1, 1, 1, 0, default_visual.depth,
InputOutput, default_visual.visual, CWOverrideRedirect, &attrib );
XMapWindow( gdi_display, dummy_parent );
}
gl->colormap = XCreateColormap(gdi_display, dummy_parent, gl->visual->visual,
(gl->visual->class == PseudoColor ||
gl->visual->class == GrayScale ||
gl->visual->class == DirectColor) ?
AllocAll : AllocNone);
attrib.colormap = gl->colormap;
XInstallColormap(gdi_display, attrib.colormap);
gl->type = DC_GL_CHILD_WIN;
gl->drawable = XCreateWindow( gdi_display, dummy_parent, 0, 0,
gl->rect.right - gl->rect.left, gl->rect.bottom - gl->rect.top,
0, gl->visual->depth, InputOutput, gl->visual->visual,
CWColormap | CWOverrideRedirect, &attrib );
if (gl->drawable)
{
pXCompositeRedirectWindow(gdi_display, gl->drawable, CompositeRedirectManual);
XMapWindow(gdi_display, gl->drawable);
}
else XFreeColormap( gdi_display, gl->colormap );
}
#endif
else
{
WARN("XComposite is not available, using GLXPixmap hack\n");
gl->type = DC_GL_PIXMAP_WIN;
gl->pixmap = XCreatePixmap( gdi_display, root_window,
gl->rect.right - gl->rect.left, gl->rect.bottom - gl->rect.top,
gl->visual->depth );
if (gl->pixmap)
{
gl->drawable = pglXCreateGLXPixmap( gdi_display, gl->visual, gl->pixmap );
if (!gl->drawable) XFreePixmap( gdi_display, gl->pixmap );
}
}
return gl->drawable != 0;
}
/***********************************************************************
* set_win_format
*/
static BOOL set_win_format( HWND hwnd, const struct wgl_pixel_format *format )
{
HWND parent = GetAncestor( hwnd, GA_PARENT );
struct gl_drawable *gl, *prev;
gl = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*gl) );
gl->format = format;
gl->visual = pglXGetVisualFromFBConfig( gdi_display, format->fbconfig );
if (!gl->visual)
{
HeapFree( GetProcessHeap(), 0, gl );
return FALSE;
}
GetClientRect( hwnd, &gl->rect );
gl->rect.right = min( max( 1, gl->rect.right ), 65535 );
gl->rect.bottom = min( max( 1, gl->rect.bottom ), 65535 );
if (!create_gl_drawable( hwnd, parent, gl ))
{
XFree( gl->visual );
HeapFree( GetProcessHeap(), 0, gl );
return FALSE;
}
TRACE("created GL drawable %lx for win %p format %x\n", gl->drawable, hwnd, format->fmt_id );
XFlush( gdi_display );
EnterCriticalSection( &context_section );
if (!XFindContext( gdi_display, (XID)hwnd, gl_hwnd_context, (char **)&prev ))
free_gl_drawable( prev );
XSaveContext( gdi_display, (XID)hwnd, gl_hwnd_context, (char *)gl );
LeaveCriticalSection( &context_section );
__wine_set_pixel_format( hwnd, pixel_format_index( format ));
return TRUE;
}
/***********************************************************************
* sync_gl_drawable
*/
void sync_gl_drawable( HWND hwnd, const RECT *visible_rect, const RECT *client_rect )
{
struct gl_drawable *gl;
Drawable glxp;
Pixmap pix;
int mask = 0;
XWindowChanges changes;
changes.width = min( max( 1, client_rect->right - client_rect->left ), 65535 );
changes.height = min( max( 1, client_rect->bottom - client_rect->top ), 65535 );
if (!(gl = get_gl_drawable( hwnd, 0 ))) return;
if (changes.width != gl->rect.right - gl->rect.left) mask |= CWWidth;
if (changes.height != gl->rect.bottom - gl->rect.top) mask |= CWHeight;
TRACE( "setting drawable %lx size %dx%d\n", gl->drawable, changes.width, changes.height );
switch (gl->type)
{
case DC_GL_CHILD_WIN:
if (mask) XConfigureWindow( gdi_display, gl->drawable, mask, &changes );
break;
case DC_GL_PIXMAP_WIN:
if (!mask) break;
pix = XCreatePixmap(gdi_display, root_window, changes.width, changes.height, gl->visual->depth);
if (!pix) goto done;
glxp = pglXCreateGLXPixmap(gdi_display, gl->visual, pix);
if (!glxp)
{
XFreePixmap(gdi_display, pix);
goto done;
}
mark_drawable_dirty(gl->drawable, glxp);
XFlush( gdi_display );
XFreePixmap(gdi_display, gl->pixmap);
pglXDestroyGLXPixmap(gdi_display, gl->drawable);
TRACE( "Recreated GL drawable %lx to replace %lx\n", glxp, gl->drawable );
gl->pixmap = pix;
gl->drawable = glxp;
break;
default:
break;
}
SetRect( &gl->rect, 0, 0, changes.width, changes.height );
done:
release_gl_drawable( gl );
}
/***********************************************************************
* set_gl_drawable_parent
*/
void set_gl_drawable_parent( HWND hwnd, HWND parent )
{
struct gl_drawable *gl;
Drawable old_drawable;
if (!(gl = get_gl_drawable( hwnd, 0 ))) return;
TRACE( "setting drawable %lx parent %p\n", gl->drawable, parent );
old_drawable = gl->drawable;
switch (gl->type)
{
case DC_GL_WINDOW:
break;
case DC_GL_CHILD_WIN:
if (parent != GetDesktopWindow()) goto done;
XDestroyWindow( gdi_display, gl->drawable );
XFreeColormap( gdi_display, gl->colormap );
break;
case DC_GL_PIXMAP_WIN:
if (parent != GetDesktopWindow()) goto done;
pglXDestroyGLXPixmap( gdi_display, gl->drawable );
XFreePixmap( gdi_display, gl->pixmap );
break;
default:
goto done;
}
if (!create_gl_drawable( hwnd, parent, gl ))
{
XDeleteContext( gdi_display, (XID)hwnd, gl_hwnd_context );
release_gl_drawable( gl );
XFree( gl->visual );
HeapFree( GetProcessHeap(), 0, gl );
__wine_set_pixel_format( hwnd, 0 );
return;
}
mark_drawable_dirty( old_drawable, gl->drawable );
done:
release_gl_drawable( gl );
}
/***********************************************************************
* destroy_gl_drawable
*/
void destroy_gl_drawable( HWND hwnd )
{
struct gl_drawable *gl;
EnterCriticalSection( &context_section );
if (!XFindContext( gdi_display, (XID)hwnd, gl_hwnd_context, (char **)&gl ))
{
XDeleteContext( gdi_display, (XID)hwnd, gl_hwnd_context );
free_gl_drawable( gl );
}
LeaveCriticalSection( &context_section );
}
/**
* glxdrv_DescribePixelFormat
*
* Get the pixel-format descriptor associated to the given id
*/
static int glxdrv_wglDescribePixelFormat( HDC hdc, int iPixelFormat,
UINT nBytes, PIXELFORMATDESCRIPTOR *ppfd)
{
/*XVisualInfo *vis;*/
int value;
int rb,gb,bb,ab;
const struct wgl_pixel_format *fmt;
if (!has_opengl()) return 0;
TRACE("(%p,%d,%d,%p)\n", hdc, iPixelFormat, nBytes, ppfd);
if (!ppfd) return nb_onscreen_formats;
/* Look for the iPixelFormat in our list of supported formats. If it is supported we get the index in the FBConfig table and the number of supported formats back */
fmt = get_pixel_format(gdi_display, iPixelFormat, FALSE /* Offscreen */);
if (!fmt) {
WARN("unexpected format %d\n", iPixelFormat);
return 0;
}
if (nBytes < sizeof(PIXELFORMATDESCRIPTOR)) {
ERR("Wrong structure size !\n");
/* Should set error */
return 0;
}
memset(ppfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR);
ppfd->nVersion = 1;
/* These flags are always the same... */
ppfd->dwFlags = PFD_SUPPORT_OPENGL;
/* Now the flags extracted from the Visual */
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DRAWABLE_TYPE, &value);
if(value & GLX_WINDOW_BIT)
ppfd->dwFlags |= PFD_DRAW_TO_WINDOW;
/* On Windows bitmap rendering is only offered using the GDI Software renderer. We reserve some formats (see get_formats for more info)
* for bitmap rendering since we require indirect rendering for this. Further pixel format logs of a GeforceFX, Geforce8800GT, Radeon HD3400 and a
* Radeon 9000 indicated that all bitmap formats have PFD_SUPPORT_GDI. Except for 2 formats on the Radeon 9000 none of the hw accelerated formats
* offered the GDI bit either. */
ppfd->dwFlags |= fmt->dwFlags & (PFD_DRAW_TO_BITMAP | PFD_SUPPORT_GDI);
/* PFD_GENERIC_FORMAT - gdi software rendering
* PFD_GENERIC_ACCELERATED - some parts are accelerated by a display driver (MCD e.g. 3dfx minigl)
* none set - full hardware accelerated by a ICD
*
* We only set PFD_GENERIC_FORMAT on bitmap formats (see get_formats) as that's what ATI and Nvidia Windows drivers do */
ppfd->dwFlags |= fmt->dwFlags & (PFD_GENERIC_FORMAT | PFD_GENERIC_ACCELERATED);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DOUBLEBUFFER, &value);
if (value) {
ppfd->dwFlags |= PFD_DOUBLEBUFFER;
ppfd->dwFlags &= ~PFD_SUPPORT_GDI;
}
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_STEREO, &value); if (value) ppfd->dwFlags |= PFD_STEREO;
/* Pixel type */
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, 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, fmt->fbconfig, GLX_BUFFER_SIZE, &value);
ppfd->cColorBits = value;
/* Red, green, blue and alpha bits / shifts */
if (ppfd->iPixelType == PFD_TYPE_RGBA) {
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_RED_SIZE, &rb);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_GREEN_SIZE, &gb);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_BLUE_SIZE, &bb);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, 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;
}
/* Accum RGBA bits */
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ACCUM_RED_SIZE, &rb);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ACCUM_GREEN_SIZE, &gb);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ACCUM_BLUE_SIZE, &bb);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ACCUM_ALPHA_SIZE, &ab);
ppfd->cAccumBits = rb+gb+bb+ab;
ppfd->cAccumRedBits = rb;
ppfd->cAccumGreenBits = gb;
ppfd->cAccumBlueBits = bb;
ppfd->cAccumAlphaBits = ab;
/* Aux bits */
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_AUX_BUFFERS, &value);
ppfd->cAuxBuffers = value;
/* Depth bits */
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DEPTH_SIZE, &value);
ppfd->cDepthBits = value;
/* stencil bits */
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_STENCIL_SIZE, &value);
ppfd->cStencilBits = value;
ppfd->iLayerType = PFD_MAIN_PLANE;
if (TRACE_ON(wgl)) {
dump_PIXELFORMATDESCRIPTOR(ppfd);
}
return nb_onscreen_formats;
}
/***********************************************************************
* glxdrv_wglGetPixelFormat
*/
static int glxdrv_wglGetPixelFormat( HDC hdc )
{
struct gl_drawable *gl;
int ret = 0;
if ((gl = get_gl_drawable( WindowFromDC( hdc ), hdc )))
{
ret = pixel_format_index( gl->format );
/* Offscreen formats can't be used with traditional WGL calls.
* As has been verified on Windows GetPixelFormat doesn't fail but returns iPixelFormat=1. */
if (!is_onscreen_pixel_format( ret )) ret = 1;
release_gl_drawable( gl );
}
TRACE( "%p -> %d\n", hdc, ret );
return ret;
}
/***********************************************************************
* glxdrv_wglSetPixelFormat
*/
static BOOL glxdrv_wglSetPixelFormat( HDC hdc, int iPixelFormat, const PIXELFORMATDESCRIPTOR *ppfd )
{
const struct wgl_pixel_format *fmt;
int value;
struct gl_drawable *gl;
HWND hwnd = WindowFromDC( hdc );
TRACE("(%p,%d,%p)\n", hdc, iPixelFormat, ppfd);
if (!hwnd || hwnd == GetDesktopWindow())
{
WARN( "not a proper window DC %p/%p\n", hdc, hwnd );
return FALSE;
}
/* Check if iPixelFormat is in our list of supported formats to see if it is supported. */
fmt = get_pixel_format(gdi_display, iPixelFormat, FALSE /* Offscreen */);
if(!fmt) {
ERR("Invalid iPixelFormat: %d\n", iPixelFormat);
return FALSE;
}
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DRAWABLE_TYPE, &value);
if (!(value & GLX_WINDOW_BIT))
{
WARN("Pixel format %d is not compatible for window rendering\n", iPixelFormat);
return FALSE;
}
if ((gl = get_gl_drawable( hwnd, hdc )))
{
int prev = pixel_format_index( gl->format );
release_gl_drawable( gl );
return prev == iPixelFormat; /* cannot change it if already set */
}
if (TRACE_ON(wgl)) {
int gl_test = 0;
gl_test = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_FBCONFIG_ID, &value);
if (gl_test) {
ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
} else {
TRACE(" FBConfig have :\n");
TRACE(" - FBCONFIG_ID 0x%x\n", value);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_VISUAL_ID, &value);
TRACE(" - VISUAL_ID 0x%x\n", value);
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DRAWABLE_TYPE, &value);
TRACE(" - DRAWABLE_TYPE 0x%x\n", value);
}
}
return set_win_format( hwnd, fmt );
}
/***********************************************************************
* glxdrv_wglCopyContext
*/
static BOOL glxdrv_wglCopyContext(struct wgl_context *src, struct wgl_context *dst, UINT mask)
{
TRACE("%p -> %p mask %#x\n", src, dst, mask);
pglXCopyContext(gdi_display, src->ctx, dst->ctx, mask);
/* As opposed to wglCopyContext, glXCopyContext doesn't return anything, so hopefully we passed */
return TRUE;
}
/***********************************************************************
* glxdrv_wglCreateContext
*/
static struct wgl_context *glxdrv_wglCreateContext( HDC hdc )
{
struct wgl_context *ret = NULL;
struct gl_drawable *gl;
if (!(gl = get_gl_drawable( WindowFromDC( hdc ), hdc )))
{
SetLastError( ERROR_INVALID_PIXEL_FORMAT );
return NULL;
}
if ((ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret))))
{
ret->hdc = hdc;
ret->fmt = gl->format;
ret->vis = pglXGetVisualFromFBConfig(gdi_display, gl->format->fbconfig);
ret->ctx = create_glxcontext(gdi_display, ret, NULL);
list_add_head( &context_list, &ret->entry );
}
release_gl_drawable( gl );
TRACE( "%p -> %p\n", hdc, ret );
return ret;
}
/***********************************************************************
* glxdrv_wglDeleteContext
*/
static void glxdrv_wglDeleteContext(struct wgl_context *ctx)
{
TRACE("(%p)\n", ctx);
EnterCriticalSection( &context_section );
list_remove( &ctx->entry );
LeaveCriticalSection( &context_section );
if (ctx->ctx) pglXDestroyContext( gdi_display, ctx->ctx );
if (ctx->vis) XFree( ctx->vis );
HeapFree( GetProcessHeap(), 0, ctx );
}
/***********************************************************************
* glxdrv_wglGetProcAddress
*/
static PROC glxdrv_wglGetProcAddress(LPCSTR lpszProc)
{
if (!strncmp(lpszProc, "wgl", 3)) return NULL;
return pglXGetProcAddressARB((const GLubyte*)lpszProc);
}
/***********************************************************************
* glxdrv_wglMakeCurrent
*/
static BOOL glxdrv_wglMakeCurrent(HDC hdc, struct wgl_context *ctx)
{
BOOL ret = FALSE;
struct gl_drawable *gl;
TRACE("(%p,%p)\n", hdc, ctx);
if (!ctx)
{
pglXMakeCurrent(gdi_display, None, NULL);
NtCurrentTeb()->glContext = NULL;
return TRUE;
}
if ((gl = get_gl_drawable( WindowFromDC( hdc ), hdc )))
{
if (ctx->fmt != gl->format)
{
WARN( "mismatched pixel format hdc %p %p ctx %p %p\n", hdc, gl->format, ctx, ctx->fmt );
SetLastError( ERROR_INVALID_PIXEL_FORMAT );
goto done;
}
if (TRACE_ON(wgl)) {
describeContext(ctx);
TRACE("hdc %p drawable %lx fmt %p ctx %p\n", hdc, gl->drawable, gl->format, ctx->ctx );
}
ret = pglXMakeCurrent(gdi_display, gl->drawable, ctx->ctx);
if (ret)
{
NtCurrentTeb()->glContext = ctx;
ctx->has_been_current = TRUE;
ctx->hdc = hdc;
ctx->drawables[0] = gl->drawable;
ctx->drawables[1] = gl->drawable;
ctx->refresh_drawables = FALSE;
goto done;
}
}
SetLastError( ERROR_INVALID_HANDLE );
done:
release_gl_drawable( gl );
TRACE( "%p,%p returning %d\n", hdc, ctx, ret );
return ret;
}
/***********************************************************************
* X11DRV_wglMakeContextCurrentARB
*/
static BOOL X11DRV_wglMakeContextCurrentARB( HDC draw_hdc, HDC read_hdc, struct wgl_context *ctx )
{
BOOL ret = FALSE;
struct gl_drawable *draw_gl, *read_gl = NULL;
TRACE("(%p,%p,%p)\n", draw_hdc, read_hdc, ctx);
if (!ctx)
{
pglXMakeCurrent(gdi_display, None, NULL);
NtCurrentTeb()->glContext = NULL;
return TRUE;
}
if (!pglXMakeContextCurrent) return FALSE;
if ((draw_gl = get_gl_drawable( WindowFromDC( draw_hdc ), draw_hdc )))
{
read_gl = get_gl_drawable( WindowFromDC( read_hdc ), read_hdc );
ret = pglXMakeContextCurrent(gdi_display, draw_gl->drawable,
read_gl ? read_gl->drawable : 0, ctx->ctx);
if (ret)
{
ctx->has_been_current = TRUE;
ctx->hdc = draw_hdc;
ctx->drawables[0] = draw_gl->drawable;
ctx->drawables[1] = read_gl ? read_gl->drawable : 0;
ctx->refresh_drawables = FALSE;
NtCurrentTeb()->glContext = ctx;
goto done;
}
}
SetLastError( ERROR_INVALID_HANDLE );
done:
release_gl_drawable( read_gl );
release_gl_drawable( draw_gl );
TRACE( "%p,%p,%p returning %d\n", draw_hdc, read_hdc, ctx, ret );
return ret;
}
/***********************************************************************
* glxdrv_wglShareLists
*/
static BOOL glxdrv_wglShareLists(struct wgl_context *org, struct wgl_context *dest)
{
TRACE("(%p, %p)\n", org, dest);
/* Sharing of display lists works differently in GLX and WGL. In case of GLX it is done
* at context creation time but in case of WGL it is done using wglShareLists.
* In the past we tried to emulate wglShareLists by delaying GLX context creation until
* either a wglMakeCurrent or wglShareLists. This worked fine for most apps but it causes
* issues for OpenGL 3 because there wglCreateContextAttribsARB can fail in a lot of cases,
* so there delaying context creation doesn't work.
*
* The new approach is to create a GLX context in wglCreateContext / wglCreateContextAttribsARB
* and when a program requests sharing we recreate the destination context if it hasn't been made
* current or when it hasn't shared display lists before.
*/
if((org->has_been_current && dest->has_been_current) || dest->has_been_current)
{
ERR("Could not share display lists, one of the contexts has been current already !\n");
return FALSE;
}
else if(dest->sharing)
{
ERR("Could not share display lists because hglrc2 has already shared lists before\n");
return FALSE;
}
else
{
describeContext(org);
describeContext(dest);
/* Re-create the GLX context and share display lists */
pglXDestroyContext(gdi_display, dest->ctx);
dest->ctx = create_glxcontext(gdi_display, dest, org->ctx);
TRACE(" re-created an OpenGL context (%p) for Wine context %p sharing lists with OpenGL ctx %p\n", dest->ctx, dest, org->ctx);
org->sharing = TRUE;
dest->sharing = TRUE;
return TRUE;
}
return FALSE;
}
static void wglFinish(void)
{
struct x11drv_escape_flush_gl_drawable escape;
struct gl_drawable *gl;
struct wgl_context *ctx = NtCurrentTeb()->glContext;
escape.code = X11DRV_FLUSH_GL_DRAWABLE;
escape.gl_drawable = 0;
if ((gl = get_gl_drawable( WindowFromDC( ctx->hdc ), 0 )))
{
switch (gl->type)
{
case DC_GL_PIXMAP_WIN: escape.gl_drawable = gl->pixmap; break;
case DC_GL_CHILD_WIN: escape.gl_drawable = gl->drawable; break;
default: break;
}
sync_context(ctx);
release_gl_drawable( gl );
}
pglFinish();
if (escape.gl_drawable) ExtEscape( ctx->hdc, X11DRV_ESCAPE, sizeof(escape), (LPSTR)&escape, 0, NULL );
}
static void wglFlush(void)
{
struct x11drv_escape_flush_gl_drawable escape;
struct gl_drawable *gl;
struct wgl_context *ctx = NtCurrentTeb()->glContext;
escape.code = X11DRV_FLUSH_GL_DRAWABLE;
escape.gl_drawable = 0;
if ((gl = get_gl_drawable( WindowFromDC( ctx->hdc ), 0 )))
{
switch (gl->type)
{
case DC_GL_PIXMAP_WIN: escape.gl_drawable = gl->pixmap; break;
case DC_GL_CHILD_WIN: escape.gl_drawable = gl->drawable; break;
default: break;
}
sync_context(ctx);
release_gl_drawable( gl );
}
pglFlush();
if (escape.gl_drawable) ExtEscape( ctx->hdc, X11DRV_ESCAPE, sizeof(escape), (LPSTR)&escape, 0, NULL );
}
/***********************************************************************
* X11DRV_wglCreateContextAttribsARB
*/
static struct wgl_context *X11DRV_wglCreateContextAttribsARB( HDC hdc, struct wgl_context *hShareContext,
const int* attribList )
{
struct wgl_context *ret = NULL;
struct gl_drawable *gl;
TRACE("(%p %p %p)\n", hdc, hShareContext, attribList);
if (!(gl = get_gl_drawable( WindowFromDC( hdc ), hdc )))
{
SetLastError( ERROR_INVALID_PIXEL_FORMAT );
return NULL;
}
if ((ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret))))
{
ret->hdc = hdc;
ret->fmt = gl->format;
ret->vis = NULL; /* glXCreateContextAttribsARB requires a fbconfig instead of a visual */
ret->gl3_context = TRUE;
ret->numAttribs = 0;
if (attribList)
{
int *pContextAttribList = &ret->attribList[0];
/* attribList consists of pairs {token, value] terminated with 0 */
while(attribList[0] != 0)
{
TRACE("%#x %#x\n", attribList[0], attribList[1]);
switch(attribList[0])
{
case WGL_CONTEXT_MAJOR_VERSION_ARB:
pContextAttribList[0] = GLX_CONTEXT_MAJOR_VERSION_ARB;
pContextAttribList[1] = attribList[1];
break;
case WGL_CONTEXT_MINOR_VERSION_ARB:
pContextAttribList[0] = GLX_CONTEXT_MINOR_VERSION_ARB;
pContextAttribList[1] = attribList[1];
break;
case WGL_CONTEXT_LAYER_PLANE_ARB:
break;
case WGL_CONTEXT_FLAGS_ARB:
pContextAttribList[0] = GLX_CONTEXT_FLAGS_ARB;
pContextAttribList[1] = attribList[1];
break;
case WGL_CONTEXT_PROFILE_MASK_ARB:
pContextAttribList[0] = GLX_CONTEXT_PROFILE_MASK_ARB;
pContextAttribList[1] = attribList[1];
break;
default:
ERR("Unhandled attribList pair: %#x %#x\n", attribList[0], attribList[1]);
}
ret->numAttribs++;
attribList += 2;
pContextAttribList += 2;
}
}
X11DRV_expect_error(gdi_display, GLXErrorHandler, NULL);
ret->ctx = create_glxcontext(gdi_display, ret, NULL);
XSync(gdi_display, False);
if (X11DRV_check_error() || !ret->ctx)
{
/* In the future we should convert the GLX error to a win32 one here if needed */
ERR("Context creation failed\n");
HeapFree( GetProcessHeap(), 0, ret );
ret = NULL;
}
else list_add_head( &context_list, &ret->entry );
}
release_gl_drawable( gl );
TRACE( "%p -> %p\n", hdc, ret );
return ret;
}
/**
* X11DRV_wglGetExtensionsStringARB
*
* WGL_ARB_extensions_string: wglGetExtensionsStringARB
*/
static const GLubyte *X11DRV_wglGetExtensionsStringARB(HDC hdc)
{
TRACE("() returning \"%s\"\n", WineGLInfo.wglExtensions);
return (const GLubyte *)WineGLInfo.wglExtensions;
}
/**
* X11DRV_wglCreatePbufferARB
*
* WGL_ARB_pbuffer: wglCreatePbufferARB
*/
static struct wgl_pbuffer *X11DRV_wglCreatePbufferARB( HDC hdc, int iPixelFormat, int iWidth, int iHeight,
const int *piAttribList )
{
struct wgl_pbuffer* object = NULL;
const struct wgl_pixel_format *fmt = NULL;
int attribs[256];
int nAttribs = 0;
TRACE("(%p, %d, %d, %d, %p)\n", hdc, iPixelFormat, iWidth, iHeight, piAttribList);
/* Convert the WGL pixelformat to a GLX format, if it fails then the format is invalid */
fmt = get_pixel_format(gdi_display, iPixelFormat, TRUE /* Offscreen */);
if(!fmt) {
ERR("(%p): invalid pixel format %d\n", hdc, iPixelFormat);
SetLastError(ERROR_INVALID_PIXEL_FORMAT);
return NULL;
}
object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object));
if (NULL == object) {
SetLastError(ERROR_NO_SYSTEM_RESOURCES);
return NULL;
}
object->width = iWidth;
object->height = iHeight;
object->fmt = fmt;
PUSH2(attribs, GLX_PBUFFER_WIDTH, iWidth);
PUSH2(attribs, GLX_PBUFFER_HEIGHT, iHeight);
while (piAttribList && 0 != *piAttribList) {
int attr_v;
switch (*piAttribList) {
case WGL_PBUFFER_LARGEST_ARB: {
++piAttribList;
attr_v = *piAttribList;
TRACE("WGL_LARGEST_PBUFFER_ARB = %d\n", attr_v);
PUSH2(attribs, GLX_LARGEST_PBUFFER, attr_v);
break;
}
case WGL_TEXTURE_FORMAT_ARB: {
++piAttribList;
attr_v = *piAttribList;
TRACE("WGL_render_texture Attribute: WGL_TEXTURE_FORMAT_ARB as %x\n", attr_v);
if (WGL_NO_TEXTURE_ARB == attr_v) {
object->use_render_texture = 0;
} else {
if (!use_render_texture_emulation) {
SetLastError(ERROR_INVALID_DATA);
goto create_failed;
}
switch (attr_v) {
case WGL_TEXTURE_RGB_ARB:
object->use_render_texture = GL_RGB;
object->texture_bpp = 3;
object->texture_format = GL_RGB;
object->texture_type = GL_UNSIGNED_BYTE;
break;
case WGL_TEXTURE_RGBA_ARB:
object->use_render_texture = GL_RGBA;
object->texture_bpp = 4;
object->texture_format = GL_RGBA;
object->texture_type = GL_UNSIGNED_BYTE;
break;
/* WGL_FLOAT_COMPONENTS_NV */
case WGL_TEXTURE_FLOAT_R_NV:
object->use_render_texture = GL_FLOAT_R_NV;
object->texture_bpp = 4;
object->texture_format = GL_RED;
object->texture_type = GL_FLOAT;
break;
case WGL_TEXTURE_FLOAT_RG_NV:
object->use_render_texture = GL_FLOAT_RG_NV;
object->texture_bpp = 8;
object->texture_format = GL_LUMINANCE_ALPHA;
object->texture_type = GL_FLOAT;
break;
case WGL_TEXTURE_FLOAT_RGB_NV:
object->use_render_texture = GL_FLOAT_RGB_NV;
object->texture_bpp = 12;
object->texture_format = GL_RGB;
object->texture_type = GL_FLOAT;
break;
case WGL_TEXTURE_FLOAT_RGBA_NV:
object->use_render_texture = GL_FLOAT_RGBA_NV;
object->texture_bpp = 16;
object->texture_format = GL_RGBA;
object->texture_type = GL_FLOAT;
break;
default:
ERR("Unknown texture format: %x\n", attr_v);
SetLastError(ERROR_INVALID_DATA);
goto create_failed;
}
}
break;
}
case WGL_TEXTURE_TARGET_ARB: {
++piAttribList;
attr_v = *piAttribList;
TRACE("WGL_render_texture Attribute: WGL_TEXTURE_TARGET_ARB as %x\n", attr_v);
if (WGL_NO_TEXTURE_ARB == attr_v) {
object->texture_target = 0;
} else {
if (!use_render_texture_emulation) {
SetLastError(ERROR_INVALID_DATA);
goto create_failed;
}
switch (attr_v) {
case WGL_TEXTURE_CUBE_MAP_ARB: {
if (iWidth != iHeight) {
SetLastError(ERROR_INVALID_DATA);
goto create_failed;
}
object->texture_target = GL_TEXTURE_CUBE_MAP;
object->texture_bind_target = GL_TEXTURE_BINDING_CUBE_MAP;
break;
}
case WGL_TEXTURE_1D_ARB: {
if (1 != iHeight) {
SetLastError(ERROR_INVALID_DATA);
goto create_failed;
}
object->texture_target = GL_TEXTURE_1D;
object->texture_bind_target = GL_TEXTURE_BINDING_1D;
break;
}
case WGL_TEXTURE_2D_ARB: {
object->texture_target = GL_TEXTURE_2D;
object->texture_bind_target = GL_TEXTURE_BINDING_2D;
break;
}
case WGL_TEXTURE_RECTANGLE_NV: {
object->texture_target = GL_TEXTURE_RECTANGLE_NV;
object->texture_bind_target = GL_TEXTURE_BINDING_RECTANGLE_NV;
break;
}
default:
ERR("Unknown texture target: %x\n", attr_v);
SetLastError(ERROR_INVALID_DATA);
goto create_failed;
}
}
break;
}
case WGL_MIPMAP_TEXTURE_ARB: {
++piAttribList;
attr_v = *piAttribList;
TRACE("WGL_render_texture Attribute: WGL_MIPMAP_TEXTURE_ARB as %x\n", attr_v);
if (!use_render_texture_emulation) {
SetLastError(ERROR_INVALID_DATA);
goto create_failed;
}
break;
}
}
++piAttribList;
}
PUSH1(attribs, None);
object->drawable = pglXCreatePbuffer(gdi_display, fmt->fbconfig, attribs);
TRACE("new Pbuffer drawable as %lx\n", object->drawable);
if (!object->drawable) {
SetLastError(ERROR_NO_SYSTEM_RESOURCES);
goto create_failed; /* unexpected error */
}
TRACE("->(%p)\n", object);
return object;
create_failed:
HeapFree(GetProcessHeap(), 0, object);
TRACE("->(FAILED)\n");
return NULL;
}
/**
* X11DRV_wglDestroyPbufferARB
*
* WGL_ARB_pbuffer: wglDestroyPbufferARB
*/
static BOOL X11DRV_wglDestroyPbufferARB( struct wgl_pbuffer *object )
{
TRACE("(%p)\n", object);
pglXDestroyPbuffer(gdi_display, object->drawable);
HeapFree(GetProcessHeap(), 0, object);
return GL_TRUE;
}
/**
* X11DRV_wglGetPbufferDCARB
*
* WGL_ARB_pbuffer: wglGetPbufferDCARB
*/
static HDC X11DRV_wglGetPbufferDCARB( struct wgl_pbuffer *object )
{
struct x11drv_escape_set_drawable escape;
struct gl_drawable *gl, *prev;
HDC hdc;
hdc = CreateDCA( "DISPLAY", NULL, NULL, NULL );
if (!hdc) return 0;
if (!(gl = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*gl) )))
{
DeleteDC( hdc );
return 0;
}
gl->type = DC_GL_PBUFFER;
gl->drawable = object->drawable;
gl->format = object->fmt;
EnterCriticalSection( &context_section );
if (!XFindContext( gdi_display, (XID)hdc, gl_pbuffer_context, (char **)&prev ))
free_gl_drawable( prev );
XSaveContext( gdi_display, (XID)hdc, gl_pbuffer_context, (char *)gl );
LeaveCriticalSection( &context_section );
escape.code = X11DRV_SET_DRAWABLE;
escape.hwnd = 0;
escape.drawable = object->drawable;
escape.mode = IncludeInferiors;
SetRect( &escape.dc_rect, 0, 0, object->width, object->height );
escape.fbconfig_id = object->fmt->fmt_id;
ExtEscape( hdc, X11DRV_ESCAPE, sizeof(escape), (LPSTR)&escape, 0, NULL );
TRACE( "(%p)->(%p)\n", object, hdc );
return hdc;
}
/**
* X11DRV_wglQueryPbufferARB
*
* WGL_ARB_pbuffer: wglQueryPbufferARB
*/
static BOOL X11DRV_wglQueryPbufferARB( struct wgl_pbuffer *object, int iAttribute, int *piValue )
{
TRACE("(%p, 0x%x, %p)\n", object, iAttribute, piValue);
switch (iAttribute) {
case WGL_PBUFFER_WIDTH_ARB:
pglXQueryDrawable(gdi_display, object->drawable, GLX_WIDTH, (unsigned int*) piValue);
break;
case WGL_PBUFFER_HEIGHT_ARB:
pglXQueryDrawable(gdi_display, object->drawable, GLX_HEIGHT, (unsigned int*) piValue);
break;
case WGL_PBUFFER_LOST_ARB:
/* GLX Pbuffers cannot be lost by default. We can support this by
* setting GLX_PRESERVED_CONTENTS to False and using glXSelectEvent
* to receive pixel buffer clobber events, however that may or may
* not give any benefit */
*piValue = GL_FALSE;
break;
case WGL_TEXTURE_FORMAT_ARB:
if (!object->use_render_texture) {
*piValue = WGL_NO_TEXTURE_ARB;
} else {
if (!use_render_texture_emulation) {
SetLastError(ERROR_INVALID_HANDLE);
return GL_FALSE;
}
switch(object->use_render_texture) {
case GL_RGB:
*piValue = WGL_TEXTURE_RGB_ARB;
break;
case GL_RGBA:
*piValue = WGL_TEXTURE_RGBA_ARB;
break;
/* WGL_FLOAT_COMPONENTS_NV */
case GL_FLOAT_R_NV:
*piValue = WGL_TEXTURE_FLOAT_R_NV;
break;
case GL_FLOAT_RG_NV:
*piValue = WGL_TEXTURE_FLOAT_RG_NV;
break;
case GL_FLOAT_RGB_NV:
*piValue = WGL_TEXTURE_FLOAT_RGB_NV;
break;
case GL_FLOAT_RGBA_NV:
*piValue = WGL_TEXTURE_FLOAT_RGBA_NV;
break;
default:
ERR("Unknown texture format: %x\n", object->use_render_texture);
}
}
break;
case WGL_TEXTURE_TARGET_ARB:
if (!object->texture_target){
*piValue = WGL_NO_TEXTURE_ARB;
} else {
if (!use_render_texture_emulation) {
SetLastError(ERROR_INVALID_DATA);
return GL_FALSE;
}
switch (object->texture_target) {
case GL_TEXTURE_1D: *piValue = WGL_TEXTURE_1D_ARB; break;
case GL_TEXTURE_2D: *piValue = WGL_TEXTURE_2D_ARB; break;
case GL_TEXTURE_CUBE_MAP: *piValue = WGL_TEXTURE_CUBE_MAP_ARB; break;
case GL_TEXTURE_RECTANGLE_NV: *piValue = WGL_TEXTURE_RECTANGLE_NV; break;
}
}
break;
case WGL_MIPMAP_TEXTURE_ARB:
*piValue = GL_FALSE; /** don't support that */
FIXME("unsupported WGL_ARB_render_texture attribute query for 0x%x\n", iAttribute);
break;
default:
FIXME("unexpected attribute %x\n", iAttribute);
break;
}
return GL_TRUE;
}
/**
* X11DRV_wglReleasePbufferDCARB
*
* WGL_ARB_pbuffer: wglReleasePbufferDCARB
*/
static int X11DRV_wglReleasePbufferDCARB( struct wgl_pbuffer *object, HDC hdc )
{
struct gl_drawable *gl;
TRACE("(%p, %p)\n", object, hdc);
EnterCriticalSection( &context_section );
if (!XFindContext( gdi_display, (XID)hdc, gl_pbuffer_context, (char **)&gl ))
{
XDeleteContext( gdi_display, (XID)hdc, gl_pbuffer_context );
free_gl_drawable( gl );
}
else hdc = 0;
LeaveCriticalSection( &context_section );
return hdc && DeleteDC(hdc);
}
/**
* X11DRV_wglSetPbufferAttribARB
*
* WGL_ARB_pbuffer: wglSetPbufferAttribARB
*/
static BOOL X11DRV_wglSetPbufferAttribARB( struct wgl_pbuffer *object, const int *piAttribList )
{
GLboolean ret = GL_FALSE;
WARN("(%p, %p): alpha-testing, report any problem\n", object, piAttribList);
if (!object->use_render_texture) {
SetLastError(ERROR_INVALID_HANDLE);
return GL_FALSE;
}
if (1 == use_render_texture_emulation) {
return GL_TRUE;
}
return ret;
}
/**
* X11DRV_wglChoosePixelFormatARB
*
* WGL_ARB_pixel_format: wglChoosePixelFormatARB
*/
static BOOL X11DRV_wglChoosePixelFormatARB( HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList,
UINT nMaxFormats, int *piFormats, UINT *nNumFormats )
{
int attribs[256];
int nAttribs = 0;
GLXFBConfig* cfgs = NULL;
int nCfgs = 0;
int it;
int fmt_id;
int start, end;
UINT pfmt_it = 0;
int run;
int i;
DWORD dwFlags = 0;
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, NULL);
if (-1 == nAttribs) {
WARN("Cannot convert WGL to GLX attributes\n");
return GL_FALSE;
}
PUSH1(attribs, None);
/* There is no 1:1 mapping between GLX and WGL formats because we duplicate some GLX formats for bitmap rendering (see get_formats).
* Flags like PFD_SUPPORT_GDI, PFD_DRAW_TO_BITMAP and others are a property of the pixel format. We don't query these attributes
* using glXChooseFBConfig but we filter the result of glXChooseFBConfig later on.
*/
for(i=0; piAttribIList[i] != 0; i+=2)
{
switch(piAttribIList[i])
{
case WGL_DRAW_TO_BITMAP_ARB:
if(piAttribIList[i+1])
dwFlags |= PFD_DRAW_TO_BITMAP;
break;
case WGL_ACCELERATION_ARB:
switch(piAttribIList[i+1])
{
case WGL_NO_ACCELERATION_ARB:
dwFlags |= PFD_GENERIC_FORMAT;
break;
case WGL_GENERIC_ACCELERATION_ARB:
dwFlags |= PFD_GENERIC_ACCELERATED;
break;
case WGL_FULL_ACCELERATION_ARB:
/* Nothing to do */
break;
}
break;
case WGL_SUPPORT_GDI_ARB:
if(piAttribIList[i+1])
dwFlags |= PFD_SUPPORT_GDI;
break;
}
}
/* Search for FB configurations matching the requirements in attribs */
cfgs = pglXChooseFBConfig(gdi_display, DefaultScreen(gdi_display), attribs, &nCfgs);
if (NULL == cfgs) {
WARN("Compatible Pixel Format not found\n");
return GL_FALSE;
}
/* Loop through all matching formats and check if they are suitable.
* Note that this function should at max return nMaxFormats different formats */
for(run=0; run < 2; run++)
{
for (it = 0; it < nCfgs && pfmt_it < nMaxFormats; ++it)
{
if (pglXGetFBConfigAttrib(gdi_display, cfgs[it], GLX_FBCONFIG_ID, &fmt_id))
{
ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
continue;
}
/* During the first run we only want onscreen formats and during the second only offscreen */
start = run == 1 ? nb_onscreen_formats : 0;
end = run == 1 ? nb_pixel_formats : nb_onscreen_formats;
for (i = start; i < end; i++)
{
if (pixel_formats[i].fmt_id == fmt_id && (pixel_formats[i].dwFlags & dwFlags) == dwFlags)
{
piFormats[pfmt_it++] = i + 1;
TRACE("at %d/%d found FBCONFIG_ID 0x%x (%d)\n",
it + 1, nCfgs, fmt_id, piFormats[pfmt_it]);
break;
}
}
}
}
*nNumFormats = pfmt_it;
/** free list */
XFree(cfgs);
return GL_TRUE;
}
/**
* X11DRV_wglGetPixelFormatAttribivARB
*
* WGL_ARB_pixel_format: wglGetPixelFormatAttribivARB
*/
static BOOL X11DRV_wglGetPixelFormatAttribivARB( HDC hdc, int iPixelFormat, int iLayerPlane,
UINT nAttributes, const int *piAttributes, int *piValues )
{
UINT i;
const struct wgl_pixel_format *fmt = NULL;
int hTest;
int tmp;
int curGLXAttr = 0;
TRACE("(%p, %d, %d, %d, %p, %p)\n", hdc, iPixelFormat, iLayerPlane, nAttributes, piAttributes, piValues);
if (0 < iLayerPlane) {
FIXME("unsupported iLayerPlane(%d) > 0, returns FALSE\n", iLayerPlane);
return GL_FALSE;
}
/* Convert the WGL pixelformat to a GLX one, if this fails then most likely the iPixelFormat isn't supported.
* We don't have to fail yet as a program can specify an invalid iPixelFormat (lets say 0) if it wants to query
* the number of supported WGL formats. Whether the iPixelFormat is valid is handled in the for-loop below. */
fmt = get_pixel_format(gdi_display, iPixelFormat, TRUE /* Offscreen */);
if(!fmt) {
WARN("Unable to convert iPixelFormat %d to a GLX one!\n", iPixelFormat);
}
for (i = 0; i < nAttributes; ++i) {
const int curWGLAttr = piAttributes[i];
TRACE("pAttr[%d] = %x\n", i, curWGLAttr);
switch (curWGLAttr) {
case WGL_NUMBER_PIXEL_FORMATS_ARB:
piValues[i] = nb_pixel_formats;
continue;
case WGL_SUPPORT_OPENGL_ARB:
piValues[i] = GL_TRUE;
continue;
case WGL_ACCELERATION_ARB:
curGLXAttr = GLX_CONFIG_CAVEAT;
if (!fmt) goto pix_error;
if(fmt->dwFlags & PFD_GENERIC_FORMAT)
piValues[i] = WGL_NO_ACCELERATION_ARB;
else if(fmt->dwFlags & PFD_GENERIC_ACCELERATED)
piValues[i] = WGL_GENERIC_ACCELERATION_ARB;
else
piValues[i] = WGL_FULL_ACCELERATION_ARB;
continue;
case WGL_TRANSPARENT_ARB:
curGLXAttr = GLX_TRANSPARENT_TYPE;
if (!fmt) goto pix_error;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, curGLXAttr, &tmp);
if (hTest) goto get_error;
piValues[i] = GL_FALSE;
if (GLX_NONE != tmp) piValues[i] = GL_TRUE;
continue;
case WGL_PIXEL_TYPE_ARB:
curGLXAttr = GLX_RENDER_TYPE;
if (!fmt) goto pix_error;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, curGLXAttr, &tmp);
if (hTest) goto get_error;
TRACE("WGL_PIXEL_TYPE_ARB: GLX_RENDER_TYPE = 0x%x\n", tmp);
if (tmp & GLX_RGBA_BIT) { piValues[i] = WGL_TYPE_RGBA_ARB; }
else if (tmp & GLX_COLOR_INDEX_BIT) { piValues[i] = WGL_TYPE_COLORINDEX_ARB; }
else if (tmp & GLX_RGBA_FLOAT_BIT) { piValues[i] = WGL_TYPE_RGBA_FLOAT_ATI; }
else if (tmp & GLX_RGBA_FLOAT_ATI_BIT) { piValues[i] = WGL_TYPE_RGBA_FLOAT_ATI; }
else if (tmp & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) { piValues[i] = WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT; }
else {
ERR("unexpected RenderType(%x)\n", tmp);
piValues[i] = WGL_TYPE_RGBA_ARB;
}
continue;
case WGL_COLOR_BITS_ARB:
curGLXAttr = GLX_BUFFER_SIZE;
break;
case WGL_BIND_TO_TEXTURE_RGB_ARB:
case WGL_BIND_TO_TEXTURE_RGBA_ARB:
if (!use_render_texture_emulation) {
piValues[i] = GL_FALSE;
continue;
}
curGLXAttr = GLX_RENDER_TYPE;
if (!fmt) goto pix_error;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, curGLXAttr, &tmp);
if (hTest) goto get_error;
if (GLX_COLOR_INDEX_BIT == tmp) {
piValues[i] = GL_FALSE;
continue;
}
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DRAWABLE_TYPE, &tmp);
if (hTest) goto get_error;
piValues[i] = (tmp & GLX_PBUFFER_BIT) ? GL_TRUE : GL_FALSE;
continue;
case WGL_BLUE_BITS_ARB:
curGLXAttr = GLX_BLUE_SIZE;
break;
case WGL_RED_BITS_ARB:
curGLXAttr = GLX_RED_SIZE;
break;
case WGL_GREEN_BITS_ARB:
curGLXAttr = GLX_GREEN_SIZE;
break;
case WGL_ALPHA_BITS_ARB:
curGLXAttr = GLX_ALPHA_SIZE;
break;
case WGL_DEPTH_BITS_ARB:
curGLXAttr = GLX_DEPTH_SIZE;
break;
case WGL_STENCIL_BITS_ARB:
curGLXAttr = GLX_STENCIL_SIZE;
break;
case WGL_DOUBLE_BUFFER_ARB:
curGLXAttr = GLX_DOUBLEBUFFER;
break;
case WGL_STEREO_ARB:
curGLXAttr = GLX_STEREO;
break;
case WGL_AUX_BUFFERS_ARB:
curGLXAttr = GLX_AUX_BUFFERS;
break;
case WGL_SUPPORT_GDI_ARB:
if (!fmt) goto pix_error;
piValues[i] = (fmt->dwFlags & PFD_SUPPORT_GDI) != 0;
continue;
case WGL_DRAW_TO_BITMAP_ARB:
if (!fmt) goto pix_error;
piValues[i] = (fmt->dwFlags & PFD_DRAW_TO_BITMAP) != 0;
continue;
case WGL_DRAW_TO_WINDOW_ARB:
case WGL_DRAW_TO_PBUFFER_ARB:
if (!fmt) goto pix_error;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DRAWABLE_TYPE, &tmp);
if (hTest) goto get_error;
if((curWGLAttr == WGL_DRAW_TO_WINDOW_ARB && (tmp&GLX_WINDOW_BIT)) ||
(curWGLAttr == WGL_DRAW_TO_PBUFFER_ARB && (tmp&GLX_PBUFFER_BIT)))
piValues[i] = GL_TRUE;
else
piValues[i] = GL_FALSE;
continue;
case WGL_SWAP_METHOD_ARB:
/* For now return SWAP_EXCHANGE_ARB which is the best type of buffer switch available.
* Later on we can also use GLX_OML_swap_method on drivers which support this. At this
* point only ATI offers this.
*/
piValues[i] = WGL_SWAP_EXCHANGE_ARB;
break;
case WGL_PBUFFER_LARGEST_ARB:
curGLXAttr = GLX_LARGEST_PBUFFER;
break;
case WGL_SAMPLE_BUFFERS_ARB:
curGLXAttr = GLX_SAMPLE_BUFFERS_ARB;
break;
case WGL_SAMPLES_ARB:
curGLXAttr = GLX_SAMPLES_ARB;
break;
case WGL_FLOAT_COMPONENTS_NV:
curGLXAttr = GLX_FLOAT_COMPONENTS_NV;
break;
case WGL_FRAMEBUFFER_SRGB_CAPABLE_EXT:
curGLXAttr = GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT;
break;
case WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT:
curGLXAttr = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT;
break;
case WGL_ACCUM_RED_BITS_ARB:
curGLXAttr = GLX_ACCUM_RED_SIZE;
break;
case WGL_ACCUM_GREEN_BITS_ARB:
curGLXAttr = GLX_ACCUM_GREEN_SIZE;
break;
case WGL_ACCUM_BLUE_BITS_ARB:
curGLXAttr = GLX_ACCUM_BLUE_SIZE;
break;
case WGL_ACCUM_ALPHA_BITS_ARB:
curGLXAttr = GLX_ACCUM_ALPHA_SIZE;
break;
case WGL_ACCUM_BITS_ARB:
if (!fmt) goto pix_error;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ACCUM_RED_SIZE, &tmp);
if (hTest) goto get_error;
piValues[i] = tmp;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ACCUM_GREEN_SIZE, &tmp);
if (hTest) goto get_error;
piValues[i] += tmp;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ACCUM_BLUE_SIZE, &tmp);
if (hTest) goto get_error;
piValues[i] += tmp;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_ACCUM_ALPHA_SIZE, &tmp);
if (hTest) goto get_error;
piValues[i] += tmp;
continue;
default:
FIXME("unsupported %x WGL Attribute\n", curWGLAttr);
}
/* Retrieve a GLX FBConfigAttrib when the attribute to query is valid and
* iPixelFormat != 0. When iPixelFormat is 0 the only value which makes
* sense to query is WGL_NUMBER_PIXEL_FORMATS_ARB.
*
* TODO: properly test the behavior of wglGetPixelFormatAttrib*v on Windows
* and check which options can work using iPixelFormat=0 and which not.
* A problem would be that this function is an extension. This would
* mean that the behavior could differ between different vendors (ATI, Nvidia, ..).
*/
if (0 != curGLXAttr && iPixelFormat != 0) {
if (!fmt) goto pix_error;
hTest = pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, curGLXAttr, piValues + i);
if (hTest) goto get_error;
curGLXAttr = 0;
} else {
piValues[i] = GL_FALSE;
}
}
return GL_TRUE;
get_error:
ERR("(%p): unexpected failure on GetFBConfigAttrib(%x) returns FALSE\n", hdc, curGLXAttr);
return GL_FALSE;
pix_error:
ERR("(%p): unexpected iPixelFormat(%d) vs nFormats(%d), returns FALSE\n", hdc, iPixelFormat, nb_pixel_formats);
return GL_FALSE;
}
/**
* X11DRV_wglGetPixelFormatAttribfvARB
*
* WGL_ARB_pixel_format: wglGetPixelFormatAttribfvARB
*/
static BOOL X11DRV_wglGetPixelFormatAttribfvARB( HDC hdc, int iPixelFormat, int iLayerPlane,
UINT nAttributes, const int *piAttributes, FLOAT *pfValues )
{
int *attr;
int ret;
UINT i;
TRACE("(%p, %d, %d, %d, %p, %p)\n", hdc, iPixelFormat, iLayerPlane, nAttributes, piAttributes, pfValues);
/* Allocate a temporary array to store integer values */
attr = HeapAlloc(GetProcessHeap(), 0, nAttributes * sizeof(int));
if (!attr) {
ERR("couldn't allocate %d array\n", nAttributes);
return GL_FALSE;
}
/* Piggy-back on wglGetPixelFormatAttribivARB */
ret = X11DRV_wglGetPixelFormatAttribivARB(hdc, iPixelFormat, iLayerPlane, nAttributes, piAttributes, attr);
if (ret) {
/* Convert integer values to float. Should also check for attributes
that can give decimal values here */
for (i=0; i<nAttributes;i++) {
pfValues[i] = attr[i];
}
}
HeapFree(GetProcessHeap(), 0, attr);
return ret;
}
/**
* X11DRV_wglBindTexImageARB
*
* WGL_ARB_render_texture: wglBindTexImageARB
*/
static BOOL X11DRV_wglBindTexImageARB( struct wgl_pbuffer *object, int iBuffer )
{
GLboolean ret = GL_FALSE;
TRACE("(%p, %d)\n", object, iBuffer);
if (!object->use_render_texture) {
SetLastError(ERROR_INVALID_HANDLE);
return GL_FALSE;
}
if (1 == use_render_texture_emulation) {
static int init = 0;
int prev_binded_texture = 0;
GLXContext prev_context;
Drawable prev_drawable;
GLXContext tmp_context;
prev_context = pglXGetCurrentContext();
prev_drawable = pglXGetCurrentDrawable();
/* Our render_texture emulation is basic and lacks some features (1D/Cube support).
This is mostly due to lack of demos/games using them. Further the use of glReadPixels
isn't ideal performance wise but I wasn't able to get other ways working.
*/
if(!init) {
init = 1; /* Only show the FIXME once for performance reasons */
FIXME("partial stub!\n");
}
TRACE("drawable=%lx, context=%p\n", object->drawable, prev_context);
tmp_context = pglXCreateNewContext(gdi_display, object->fmt->fbconfig, object->fmt->render_type, prev_context, True);
opengl_funcs.gl.p_glGetIntegerv(object->texture_bind_target, &prev_binded_texture);
/* Switch to our pbuffer */
pglXMakeCurrent(gdi_display, object->drawable, tmp_context);
/* Make sure that the prev_binded_texture is set as the current texture state isn't shared between contexts.
* After that upload the pbuffer texture data. */
opengl_funcs.gl.p_glBindTexture(object->texture_target, prev_binded_texture);
opengl_funcs.gl.p_glCopyTexImage2D(object->texture_target, 0, object->use_render_texture, 0, 0, object->width, object->height, 0);
/* Switch back to the original drawable and upload the pbuffer-texture */
pglXMakeCurrent(gdi_display, prev_drawable, prev_context);
pglXDestroyContext(gdi_display, tmp_context);
return GL_TRUE;
}
return ret;
}
/**
* X11DRV_wglReleaseTexImageARB
*
* WGL_ARB_render_texture: wglReleaseTexImageARB
*/
static BOOL X11DRV_wglReleaseTexImageARB( struct wgl_pbuffer *object, int iBuffer )
{
GLboolean ret = GL_FALSE;
TRACE("(%p, %d)\n", object, iBuffer);
if (!object->use_render_texture) {
SetLastError(ERROR_INVALID_HANDLE);
return GL_FALSE;
}
if (1 == use_render_texture_emulation) {
return GL_TRUE;
}
return ret;
}
/**
* X11DRV_wglGetExtensionsStringEXT
*
* WGL_EXT_extensions_string: wglGetExtensionsStringEXT
*/
static const GLubyte *X11DRV_wglGetExtensionsStringEXT(void)
{
TRACE("() returning \"%s\"\n", WineGLInfo.wglExtensions);
return (const GLubyte *)WineGLInfo.wglExtensions;
}
/**
* X11DRV_wglGetSwapIntervalEXT
*
* WGL_EXT_swap_control: wglGetSwapIntervalEXT
*/
static int X11DRV_wglGetSwapIntervalEXT(void)
{
/* GLX_SGI_swap_control doesn't have any provisions for getting the swap
* interval, so the swap interval has to be tracked. */
TRACE("()\n");
return swap_interval;
}
/**
* X11DRV_wglSwapIntervalEXT
*
* WGL_EXT_swap_control: wglSwapIntervalEXT
*/
static BOOL X11DRV_wglSwapIntervalEXT(int interval)
{
BOOL ret = TRUE;
TRACE("(%d)\n", interval);
if (interval < 0)
{
SetLastError(ERROR_INVALID_DATA);
return FALSE;
}
else if (!has_swap_control && interval == 0)
{
/* wglSwapIntervalEXT considers an interval value of zero to mean that
* vsync should be disabled, but glXSwapIntervalSGI considers such a
* value to be an error. Just silently ignore the request for now. */
WARN("Request to disable vertical sync is not handled\n");
swap_interval = 0;
}
else
{
if (pglXSwapIntervalSGI)
ret = !pglXSwapIntervalSGI(interval);
else
WARN("GLX_SGI_swap_control extension is not available\n");
if (ret)
swap_interval = interval;
else
SetLastError(ERROR_DC_NOT_FOUND);
}
return ret;
}
/**
* X11DRV_wglSetPixelFormatWINE
*
* WGL_WINE_pixel_format_passthrough: wglSetPixelFormatWINE
* This is a WINE-specific wglSetPixelFormat which can set the pixel format multiple times.
*/
static BOOL X11DRV_wglSetPixelFormatWINE(HDC hdc, int format)
{
const struct wgl_pixel_format *fmt;
int value;
HWND hwnd;
TRACE("(%p,%d)\n", hdc, format);
fmt = get_pixel_format(gdi_display, format, FALSE /* Offscreen */);
if (!fmt)
{
ERR( "Invalid format %d\n", format );
return FALSE;
}
hwnd = WindowFromDC( hdc );
if (!hwnd || hwnd == GetDesktopWindow())
{
ERR( "not a valid window DC %p\n", hdc );
return FALSE;
}
pglXGetFBConfigAttrib(gdi_display, fmt->fbconfig, GLX_DRAWABLE_TYPE, &value);
if (!(value & GLX_WINDOW_BIT))
{
WARN( "Pixel format %d is not compatible for window rendering\n", format );
return FALSE;
}
return set_win_format( hwnd, fmt );
}
/**
* glxRequireVersion (internal)
*
* Check if the supported GLX version matches requiredVersion.
*/
static BOOL glxRequireVersion(int requiredVersion)
{
/* Both requiredVersion and glXVersion[1] contains the minor GLX version */
if(requiredVersion <= WineGLInfo.glxVersion[1])
return TRUE;
return FALSE;
}
static void register_extension(const char *ext)
{
if (WineGLInfo.wglExtensions[0])
strcat(WineGLInfo.wglExtensions, " ");
strcat(WineGLInfo.wglExtensions, ext);
TRACE("'%s'\n", ext);
}
/**
* X11DRV_WineGL_LoadExtensions
*/
static void X11DRV_WineGL_LoadExtensions(void)
{
WineGLInfo.wglExtensions[0] = 0;
/* ARB Extensions */
if (has_extension( WineGLInfo.glxExtensions, "GLX_ARB_create_context"))
{
register_extension( "WGL_ARB_create_context" );
opengl_funcs.ext.p_wglCreateContextAttribsARB = X11DRV_wglCreateContextAttribsARB;
if (has_extension( WineGLInfo.glxExtensions, "GLX_ARB_create_context_profile"))
register_extension("WGL_ARB_create_context_profile");
}
if (has_extension( WineGLInfo.glxExtensions, "GLX_ARB_fbconfig_float"))
{
register_extension("WGL_ARB_pixel_format_float");
register_extension("WGL_ATI_pixel_format_float");
}
register_extension( "WGL_ARB_extensions_string" );
opengl_funcs.ext.p_wglGetExtensionsStringARB = X11DRV_wglGetExtensionsStringARB;
if (glxRequireVersion(3))
{
register_extension( "WGL_ARB_make_current_read" );
opengl_funcs.ext.p_wglGetCurrentReadDCARB = (void *)1; /* never called */
opengl_funcs.ext.p_wglMakeContextCurrentARB = X11DRV_wglMakeContextCurrentARB;
}
if (has_extension( WineGLInfo.glxExtensions, "GLX_ARB_multisample")) register_extension( "WGL_ARB_multisample" );
/* In general pbuffer functionality requires support in the X-server. The functionality is
* available either when the GLX_SGIX_pbuffer is present or when the GLX server version is 1.3.
*/
if ( glxRequireVersion(3) && has_extension( WineGLInfo.glxExtensions, "GLX_SGIX_pbuffer") )
{
register_extension( "WGL_ARB_pbuffer" );
opengl_funcs.ext.p_wglCreatePbufferARB = X11DRV_wglCreatePbufferARB;
opengl_funcs.ext.p_wglDestroyPbufferARB = X11DRV_wglDestroyPbufferARB;
opengl_funcs.ext.p_wglGetPbufferDCARB = X11DRV_wglGetPbufferDCARB;
opengl_funcs.ext.p_wglQueryPbufferARB = X11DRV_wglQueryPbufferARB;
opengl_funcs.ext.p_wglReleasePbufferDCARB = X11DRV_wglReleasePbufferDCARB;
opengl_funcs.ext.p_wglSetPbufferAttribARB = X11DRV_wglSetPbufferAttribARB;
}
register_extension( "WGL_ARB_pixel_format" );
opengl_funcs.ext.p_wglChoosePixelFormatARB = X11DRV_wglChoosePixelFormatARB;
opengl_funcs.ext.p_wglGetPixelFormatAttribfvARB = X11DRV_wglGetPixelFormatAttribfvARB;
opengl_funcs.ext.p_wglGetPixelFormatAttribivARB = X11DRV_wglGetPixelFormatAttribivARB;
/* Support WGL_ARB_render_texture when there's support or pbuffer based emulation */
if (has_extension( WineGLInfo.glxExtensions, "GLX_ARB_render_texture") ||
(glxRequireVersion(3) && has_extension( WineGLInfo.glxExtensions, "GLX_SGIX_pbuffer") && use_render_texture_emulation))
{
register_extension( "WGL_ARB_render_texture" );
opengl_funcs.ext.p_wglBindTexImageARB = X11DRV_wglBindTexImageARB;
opengl_funcs.ext.p_wglReleaseTexImageARB = X11DRV_wglReleaseTexImageARB;
/* The WGL version of GLX_NV_float_buffer requires render_texture */
if (has_extension( WineGLInfo.glxExtensions, "GLX_NV_float_buffer"))
register_extension("WGL_NV_float_buffer");
/* Again there's no GLX equivalent for this extension, so depend on the required GL extension */
if (has_extension(WineGLInfo.glExtensions, "GL_NV_texture_rectangle"))
register_extension("WGL_NV_render_texture_rectangle");
}
/* EXT Extensions */
register_extension( "WGL_EXT_extensions_string" );
opengl_funcs.ext.p_wglGetExtensionsStringEXT = X11DRV_wglGetExtensionsStringEXT;
/* Load this extension even when it isn't backed by a GLX extension because it is has been around for ages.
* Games like Call of Duty and K.O.T.O.R. rely on it. Further our emulation is good enough. */
register_extension( "WGL_EXT_swap_control" );
opengl_funcs.ext.p_wglSwapIntervalEXT = X11DRV_wglSwapIntervalEXT;
opengl_funcs.ext.p_wglGetSwapIntervalEXT = X11DRV_wglGetSwapIntervalEXT;
if (has_extension( WineGLInfo.glxExtensions, "GLX_EXT_framebuffer_sRGB"))
register_extension("WGL_EXT_framebuffer_sRGB");
if (has_extension( WineGLInfo.glxExtensions, "GLX_EXT_fbconfig_packed_float"))
register_extension("WGL_EXT_pixel_format_packed_float");
if (has_extension( WineGLInfo.glxExtensions, "GLX_EXT_swap_control"))
has_swap_control = TRUE;
/* The OpenGL extension GL_NV_vertex_array_range adds wgl/glX functions which aren't exported as 'real' wgl/glX extensions. */
if (has_extension(WineGLInfo.glExtensions, "GL_NV_vertex_array_range"))
{
register_extension( "WGL_NV_vertex_array_range" );
opengl_funcs.ext.p_wglAllocateMemoryNV = pglXAllocateMemoryNV;
opengl_funcs.ext.p_wglFreeMemoryNV = pglXFreeMemoryNV;
}
/* WINE-specific WGL Extensions */
/* In WineD3D we need the ability to set the pixel format more than once (e.g. after a device reset).
* The default wglSetPixelFormat doesn't allow this, so add our own which allows it.
*/
register_extension( "WGL_WINE_pixel_format_passthrough" );
opengl_funcs.ext.p_wglSetPixelFormatWINE = X11DRV_wglSetPixelFormatWINE;
}
/**
* glxdrv_SwapBuffers
*
* Swap the buffers of this DC
*/
static BOOL glxdrv_wglSwapBuffers( HDC hdc )
{
struct x11drv_escape_flush_gl_drawable escape;
struct gl_drawable *gl;
struct wgl_context *ctx = NtCurrentTeb()->glContext;
TRACE("(%p)\n", hdc);
escape.code = X11DRV_FLUSH_GL_DRAWABLE;
escape.gl_drawable = 0;
if (!(gl = get_gl_drawable( WindowFromDC( hdc ), hdc )))
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
switch (gl->type)
{
case DC_GL_PIXMAP_WIN:
if (ctx) sync_context( ctx );
escape.gl_drawable = gl->pixmap;
if (pglXCopySubBufferMESA) {
/* (glX)SwapBuffers has an implicit glFlush effect, however
* GLX_MESA_copy_sub_buffer doesn't. Make sure GL is flushed before
* copying */
pglFlush();
pglXCopySubBufferMESA( gdi_display, gl->drawable, 0, 0,
gl->rect.right - gl->rect.left, gl->rect.bottom - gl->rect.top );
break;
}
pglXSwapBuffers(gdi_display, gl->drawable);
break;
case DC_GL_CHILD_WIN:
escape.gl_drawable = gl->drawable;
/* fall through */
default:
pglXSwapBuffers(gdi_display, gl->drawable);
break;
}
release_gl_drawable( gl );
if (escape.gl_drawable) ExtEscape( ctx->hdc, X11DRV_ESCAPE, sizeof(escape), (LPSTR)&escape, 0, NULL );
return TRUE;
}
static struct opengl_funcs opengl_funcs =
{
{
glxdrv_wglCopyContext, /* p_wglCopyContext */
glxdrv_wglCreateContext, /* p_wglCreateContext */
glxdrv_wglDeleteContext, /* p_wglDeleteContext */
glxdrv_wglDescribePixelFormat, /* p_wglDescribePixelFormat */
glxdrv_wglGetPixelFormat, /* p_wglGetPixelFormat */
glxdrv_wglGetProcAddress, /* p_wglGetProcAddress */
glxdrv_wglMakeCurrent, /* p_wglMakeCurrent */
glxdrv_wglSetPixelFormat, /* p_wglSetPixelFormat */
glxdrv_wglShareLists, /* p_wglShareLists */
glxdrv_wglSwapBuffers, /* p_wglSwapBuffers */
}
};
struct opengl_funcs *get_glx_driver( UINT version )
{
if (version != WINE_WGL_DRIVER_VERSION)
{
ERR( "version mismatch, opengl32 wants %u but driver has %u\n", version, WINE_WGL_DRIVER_VERSION );
return NULL;
}
if (has_opengl()) return &opengl_funcs;
return NULL;
}
#else /* no OpenGL includes */
struct opengl_funcs *get_glx_driver( UINT version )
{
return NULL;
}
void sync_gl_drawable( HWND hwnd, const RECT *visible_rect, const RECT *client_rect )
{
}
void set_gl_drawable_parent( HWND hwnd, HWND parent )
{
}
void destroy_gl_drawable( HWND hwnd )
{
}
#endif /* defined(SONAME_LIBGL) */
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