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wgl: Unify pixel format code.

This commit is contained in:
Roderick Colenbrander 2006-11-18 23:29:48 +01:00 committed by Alexandre Julliard
parent 54ab47ef59
commit 57ff710cde
1 changed files with 109 additions and 114 deletions
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223
dlls/winex11.drv/opengl.c
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@ -124,6 +124,12 @@ struct WineGLInfo {
char wglExtensions[4096];
};
typedef struct wine_glpixelformat {
int iPixelFormat;
int fbconfig;
int fmt_index;
} WineGLPixelFormat;
static Wine_GLContext *context_list;
static struct WineGLInfo WineGLInfo = { 0 };
static int use_render_texture_emulation = 0;
@ -134,6 +140,10 @@ static int swap_interval = 1;
static const WineGLExtension *WineGLExtensionList[MAX_EXTENSIONS];
static int WineGLExtensionListSize;
#define MAX_GLPIXELFORMATS 32
static WineGLPixelFormat WineGLPixelFormatList[MAX_GLPIXELFORMATS];
static int WineGLPixelFormatListSize = 0;
static void X11DRV_WineGL_LoadExtensions(void);
static void dump_PIXELFORMATDESCRIPTOR(const PIXELFORMATDESCRIPTOR *ppfd) {
@ -785,6 +795,69 @@ static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, Wine_GLPBuf
return nAttribs;
}
BOOL get_fbconfig_from_visualid(Display *display, Visual *visual, int *fmt_id, int *fmt_index)
{
GLXFBConfig* cfgs = NULL;
int i;
int nCfgs;
int tmp_fmt_id;
int tmp_vis_id;
VisualID visualid;
if(!display || !display) {
ERR("Invalid display or visual\n");
}
visualid = XVisualIDFromVisual(visual);
/* Get a list of all available framebuffer configurations */
cfgs = pglXGetFBConfigs(display, DefaultScreen(display), &nCfgs);
if (NULL == cfgs || 0 == nCfgs) {
ERR("glXChooseFBConfig returns NULL\n");
if(cfgs != NULL) XFree(cfgs);
return 0;
}
/* Find the requested offscreen format and count the number of offscreen formats */
for(i=0; i<nCfgs; i++) {
pglXGetFBConfigAttrib(display, cfgs[i], GLX_VISUAL_ID, &tmp_vis_id);
pglXGetFBConfigAttrib(display, cfgs[i], GLX_FBCONFIG_ID, &tmp_fmt_id);
/* We are looking up the GLX index of our main visual and have found it :) */
if(visualid == tmp_vis_id) {
TRACE("Found FBCONFIG_ID 0x%x at index %d for VISUAL_ID 0x%x\n", tmp_fmt_id, i, tmp_vis_id);
XFree(cfgs);
*fmt_id = tmp_fmt_id;
*fmt_index = i;
return TRUE;
}
}
ERR("No fbconfig found for Wine's main visual (0x%lx), expect problems!\n", visualid);
XFree(cfgs);
return FALSE;
}
static BOOL init_formats(Display *display, int screen, Visual *visual)
{
int fmt_id, fmt_index;
/* Locate the fbconfig correspondig to our main visual */
if(!get_fbconfig_from_visualid(display, visual, &fmt_id, &fmt_index)) {
ERR("Can't get the FBCONFIG_ID for the main visual, expect problems!\n");
return FALSE;
}
/* Put Wine's internal format at the first index */
WineGLPixelFormatList[0].iPixelFormat = 1;
WineGLPixelFormatList[0].fbconfig = fmt_id;
WineGLPixelFormatList[0].fmt_index = fmt_index;
WineGLPixelFormatListSize = 1;
/* In the future test for compatible formats here */
return TRUE;
}
/* 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).
@ -793,61 +866,39 @@ static int ConvertAttribWGLtoGLX(const int* iWGLAttr, int* oGLXAttr, Wine_GLPBuf
*/
static BOOL ConvertPixelFormatWGLtoGLX(Display *display, int iPixelFormat, int *fmt_index, int *fmt_count)
{
int res = FALSE;
int i = 0;
GLXFBConfig* cfgs = NULL;
int nCfgs = 0;
int tmp_fmt_id = 0;
int tmp_vis_id = 0;
int nFormats = 1; /* Start at 1 as we always have a main visual */
VisualID visualid = 0;
/* Init the list of pixel formats when we need it */
if(!WineGLPixelFormatListSize)
init_formats(display, DefaultScreen(display), visual);
/* Request to look up the format of the main visual when iPixelFormat = 1 */
if(iPixelFormat == 1) visualid = XVisualIDFromVisual(visual);
/* As mentioned in various parts of the code only the format of the main visual can be used for onscreen rendering.
* Next to this format there are also so called offscreen rendering formats (used for pbuffers) which can be supported
* because they don't need a visual. Below we use glXGetFBConfigs instead of glXChooseFBConfig to enumerate the fb configurations
* bas this call lists both types of formats instead of only onscreen ones. */
cfgs = pglXGetFBConfigs(display, DefaultScreen(display), &nCfgs);
if (NULL == cfgs || 0 == nCfgs) {
ERR("glXChooseFBConfig returns NULL\n");
if(cfgs != NULL) XFree(cfgs);
return FALSE;
}
/* Find the requested offscreen format and count the number of offscreen formats */
for(i=0; i<nCfgs; i++) {
pglXGetFBConfigAttrib(display, cfgs[i], GLX_VISUAL_ID, &tmp_vis_id);
pglXGetFBConfigAttrib(display, cfgs[i], GLX_FBCONFIG_ID, &tmp_fmt_id);
/* We are looking up the GLX index of our main visual and have found it :) */
if(iPixelFormat == 1 && visualid == tmp_vis_id) {
*fmt_index = i;
TRACE("Found FBCONFIG_ID 0x%x at index %d for VISUAL_ID 0x%x\n", tmp_fmt_id, *fmt_index, tmp_vis_id);
res = TRUE;
if((iPixelFormat <= 0) || (iPixelFormat > WineGLPixelFormatListSize)) {
ERR("invalid iPixelFormat %d\n", iPixelFormat);
return FALSE;
}
/* We found an offscreen rendering format :) */
else if(tmp_vis_id == 0) {
nFormats++;
TRACE("Checking offscreen format FBCONFIG_ID 0x%x at index %d\n", tmp_fmt_id, i);
if(iPixelFormat == nFormats) {
*fmt_index = i;
TRACE("Found offscreen format FBCONFIG_ID 0x%x corresponding to iPixelFormat %d at GLX index %d\n", tmp_fmt_id, iPixelFormat, i);
res = TRUE;
}
*fmt_index = WineGLPixelFormatList[iPixelFormat-1].fmt_index;
*fmt_count = WineGLPixelFormatListSize;
TRACE("Returning fmt_index=%d, fmt_count=%d for iPixelFormat=%d\n", *fmt_index, *fmt_count, iPixelFormat);
return TRUE;
}
/* Search our internal pixelformat list for the WGL format corresponding to the given fbconfig */
static int ConvertPixelFormatGLXtoWGL(Display *display, int fbconfig)
{
int i;
/* Init the list of pixel formats when we need it */
if(!WineGLPixelFormatListSize)
init_formats(display, DefaultScreen(display), visual);
for(i=0; i<WineGLPixelFormatListSize; i++) {
if(WineGLPixelFormatList[i].fbconfig == fbconfig) {
TRACE("Returning iPixelFormat %d for fbconfig 0x%x\n", WineGLPixelFormatList[i].iPixelFormat, fbconfig);
return WineGLPixelFormatList[i].iPixelFormat;
}
}
}
*fmt_count = nFormats;
TRACE("Number of offscreen formats: %d; returning index: %d\n", *fmt_count, *fmt_index);
if(cfgs != NULL) XFree(cfgs);
if(res == FALSE && iPixelFormat == 1)
ERR("Can't find a matching FBCONFIG_ID for VISUAL_ID 0x%lx!\n", visualid);
return res;
TRACE("No compatible format found for FBCONFIG_ID=0x%x\n", fbconfig);
return 0;
}
/**
@ -2102,11 +2153,6 @@ static GLboolean WINAPI X11DRV_wglChoosePixelFormatARB(HDC hdc, const int *piAtt
int gl_test = 0;
int attribs[256];
int nAttribs = 0;
GLboolean res = FALSE;
/* We need the visualid to check if the format is suitable */
VisualID visualid = XVisualIDFromVisual(visual);
GLXFBConfig* cfgs = NULL;
int nCfgs = 0;
UINT it;
@ -2114,12 +2160,9 @@ static GLboolean WINAPI X11DRV_wglChoosePixelFormatARB(HDC hdc, const int *piAtt
GLXFBConfig* cfgs_fmt = NULL;
int nCfgs_fmt = 0;
UINT it_fmt;
int tmp_fmt_id;
int tmp_vis_id;
int fmt = 0;
int pfmt_it = 0;
int offscreen_index = 1; /* Start at one because we always have a main visual at iPixelFormat=1 */
TRACE("(%p, %p, %p, %d, %p, %p): hackish\n", hdc, piAttribIList, pfAttribFList, nMaxFormats, piFormats, nNumFormats);
if (NULL != pfAttribFList) {
@ -2157,62 +2200,14 @@ static GLboolean WINAPI X11DRV_wglChoosePixelFormatARB(HDC hdc, const int *piAtt
continue;
}
gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs[it], GLX_VISUAL_ID, &tmp_vis_id);
if (gl_test) {
ERR("Failed to retrieve VISUAL_ID from GLXFBConfig, expect problems.\n");
/* Search for the format in our list of compatible formats */
fmt = ConvertPixelFormatGLXtoWGL(gdi_display, fmt_id);
if(!fmt)
continue;
}
/* When the visualid of the GLXFBConfig matches the one of the main visual we have found our
* only supported onscreen rendering format. This format has a WGL index of 1. */
if(tmp_vis_id == visualid) {
piFormats[pfmt_it] = 1;
++pfmt_it;
res = GL_TRUE;
TRACE("Found compatible GLXFBConfig 0x%x with WGL index 1\n", fmt_id);
continue;
}
/* Only continue with this loop for offscreen rendering formats (visualid = 0) */
else if(tmp_vis_id != 0) {
TRACE("Discarded GLXFBConfig %0x with VisualID %x because the visualid is not the same as our main visual (%lx)\n", fmt_id, tmp_vis_id, visualid);
continue;
}
/* Find the index of the found format in the whole format table */
for (it_fmt = 0; it_fmt < nCfgs_fmt; ++it_fmt) {
gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs_fmt[it_fmt], GLX_FBCONFIG_ID, &tmp_fmt_id);
if (gl_test) {
ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");
continue;
}
gl_test = pglXGetFBConfigAttrib(gdi_display, cfgs_fmt[it_fmt], GLX_VISUAL_ID, &tmp_vis_id);
if (gl_test) {
ERR("Failed to retrieve VISUAL_ID from GLXFBConfig, expect problems.\n");
continue;
}
/* The format of Wine's main visual is stored at index 1 of our WGL format table.
* At higher indices we store offscreen rendering formats (visualid=0). Below we calculate
* the index of the offscreen format. We do this by counting the number of offscreen formats
* which we see until we reach our target format. */
if(tmp_vis_id == 0)
offscreen_index++;
/* We have found the format in the table (note the format is offscreen) */
if (fmt_id == tmp_fmt_id) {
int tmp;
piFormats[pfmt_it] = offscreen_index + 1; /* Add 1 to get a one-based index */
++pfmt_it;
pglXGetFBConfigAttrib(gdi_display, cfgs_fmt[it_fmt], GLX_ALPHA_SIZE, &tmp);
TRACE("ALPHA_SIZE of FBCONFIG_ID(%d/%d) found as '%d'\n", it_fmt + 1, nCfgs_fmt, tmp);
break;
}
}
if (it_fmt == nCfgs_fmt) {
ERR("Failed to get valid fmt for %d. Try next.\n", it);
continue;
}
TRACE("at %d/%d found FBCONFIG_ID(%d/%d)\n", it + 1, nCfgs, piFormats[it], nCfgs_fmt);
piFormats[pfmt_it] = fmt;
TRACE("at %d/%d found FBCONFIG_ID 0x%x (%d/%d)\n", it + 1, nCfgs, fmt_id, piFormats[pfmt_it], nCfgs_fmt);
pfmt_it++;
}
*nNumFormats = pfmt_it;