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xenocara/xserver/GL/windows/indirect.c
matthieu 889b860699 Importing xserver from X.Org 7.2RC2
2006-11-26 18:13:41 +00:00

1606 lines
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/*
* GLX implementation that uses Windows OpenGL library
* (Indirect rendering path)
*
* Authors: Alexander Gottwald
*/
/*
* Portions of this file are copied from GL/apple/indirect.c,
* which contains the following copyright:
*
* Copyright (c) 2002 Greg Parker. All Rights Reserved.
* Copyright (c) 2002 Apple Computer, Inc.
*
* Portions of this file are copied from xf86glx.c,
* which contains the following copyright:
*
* Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the sale,
* use or other dealings in this Software without prior written authorization.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "glwindows.h"
#include <glcontextmodes.h>
#include <stdint.h>
#include <winpriv.h>
#define GLWIN_DEBUG_HWND(hwnd) \
if (glWinDebugSettings.dumpHWND) { \
char buffer[1024]; \
if (GetWindowText(hwnd, buffer, sizeof(buffer))==0) *buffer=0; \
GLWIN_DEBUG_MSG("Got HWND %s (%p)\n", buffer, hwnd); \
}
/* ggs: needed to call back to glx with visual configs */
extern void GlxSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs, void **configprivs);
glWinDebugSettingsRec glWinDebugSettings = { 1, 0, 0, 0, 0};
static void glWinInitDebugSettings(void)
{
char *envptr;
envptr = getenv("GLWIN_ENABLE_DEBUG");
if (envptr != NULL)
glWinDebugSettings.enableDebug = (atoi(envptr) == 1);
envptr = getenv("GLWIN_ENABLE_TRACE");
if (envptr != NULL)
glWinDebugSettings.enableTrace = (atoi(envptr) == 1);
envptr = getenv("GLWIN_DUMP_PFD");
if (envptr != NULL)
glWinDebugSettings.dumpPFD = (atoi(envptr) == 1);
envptr = getenv("GLWIN_DUMP_HWND");
if (envptr != NULL)
glWinDebugSettings.dumpHWND = (atoi(envptr) == 1);
envptr = getenv("GLWIN_DUMP_DC");
if (envptr != NULL)
glWinDebugSettings.dumpDC = (atoi(envptr) == 1);
}
static char errorbuffer[1024];
const char *glWinErrorMessage(void)
{
if (!FormatMessage(
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &errorbuffer,
sizeof(errorbuffer),
NULL ))
{
snprintf(errorbuffer, sizeof(errorbuffer), "Unknown error in FormatMessage: %08x!\n", (unsigned)GetLastError());
}
return errorbuffer;
}
/*
* GLX implementation that uses Win32's OpenGL
*/
/*
* Server-side GLX uses these functions which are normally defined
* in the OpenGL SI.
*/
GLuint __glFloorLog2(GLuint val)
{
int c = 0;
while (val > 1) {
c++;
val >>= 1;
}
return c;
}
/* some prototypes */
static Bool glWinScreenProbe(int screen);
static Bool glWinInitVisuals(VisualPtr *visualp, DepthPtr *depthp,
int *nvisualp, int *ndepthp,
int *rootDepthp, VisualID *defaultVisp,
unsigned long sizes, int bitsPerRGB);
static void glWinSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs,
void **privates);
static __GLinterface *glWinCreateContext(__GLimports *imports,
__GLcontextModes *mode,
__GLinterface *shareGC);
static void glWinCreateBuffer(__GLXdrawablePrivate *glxPriv);
static void glWinResetExtension(void);
/*
* This structure is statically allocated in the __glXScreens[]
* structure. This struct is not used anywhere other than in
* __glXScreenInit to initialize each of the active screens
* (__glXActiveScreens[]). Several of the fields must be initialized by
* the screenProbe routine before they are copied to the active screens
* struct. In particular, the contextCreate, pGlxVisual, numVisuals,
* and numUsableVisuals fields must be initialized.
*/
static __GLXscreenInfo __glDDXScreenInfo = {
glWinScreenProbe, /* Must be generic and handle all screens */
glWinCreateContext, /* Substitute screen's createContext routine */
glWinCreateBuffer, /* Substitute screen's createBuffer routine */
NULL, /* Set up pGlxVisual in probe */
NULL, /* Set up pVisualPriv in probe */
0, /* Set up numVisuals in probe */
0, /* Set up numUsableVisuals in probe */
"Vendor String", /* GLXvendor is overwritten by __glXScreenInit */
"Version String", /* GLXversion is overwritten by __glXScreenInit */
"Extensions String", /* GLXextensions is overwritten by __glXScreenInit */
NULL /* WrappedPositionWindow is overwritten */
};
void *__glXglDDXScreenInfo(void) {
return &__glDDXScreenInfo;
}
static __GLXextensionInfo __glDDXExtensionInfo = {
GL_CORE_WINDOWS,
glWinResetExtension,
glWinInitVisuals,
glWinSetVisualConfigs
};
void *__glXglDDXExtensionInfo(void) {
return &__glDDXExtensionInfo;
}
/* prototypes */
static GLboolean glWinDestroyContext(__GLcontext *gc);
static GLboolean glWinLoseCurrent(__GLcontext *gc);
static GLboolean glWinMakeCurrent(__GLcontext *gc);
static GLboolean glWinShareContext(__GLcontext *gc, __GLcontext *gcShare);
static GLboolean glWinCopyContext(__GLcontext *dst, const __GLcontext *src,
GLuint mask);
static GLboolean glWinForceCurrent(__GLcontext *gc);
/* Drawing surface notification callbacks */
static GLboolean glWinNotifyResize(__GLcontext *gc);
static void glWinNotifyDestroy(__GLcontext *gc);
static void glWinNotifySwapBuffers(__GLcontext *gc);
/* Dispatch table override control for external agents like libGLS */
static struct __GLdispatchStateRec* glWinDispatchExec(__GLcontext *gc);
static void glWinBeginDispatchOverride(__GLcontext *gc);
static void glWinEndDispatchOverride(__GLcontext *gc);
/* Debug output */
static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd);
static __GLexports glWinExports = {
glWinDestroyContext,
glWinLoseCurrent,
glWinMakeCurrent,
glWinShareContext,
glWinCopyContext,
glWinForceCurrent,
glWinNotifyResize,
glWinNotifyDestroy,
glWinNotifySwapBuffers,
glWinDispatchExec,
glWinBeginDispatchOverride,
glWinEndDispatchOverride
};
glWinScreenRec glWinScreens[MAXSCREENS];
/* __GLdrawablePrivate->private */
typedef struct {
DrawablePtr pDraw;
/* xp_surface_id sid; */
} GLWinDrawableRec;
struct __GLcontextRec {
struct __GLinterfaceRec interface; /* required to be first */
HGLRC ctx; /* Windows GL Context */
HDC dc; /* Windows Device Context */
winWindowInfoRec winInfo; /* Window info from XWin */
PIXELFORMATDESCRIPTOR pfd; /* Pixelformat flags */
int pixelFormat; /* Pixelformat index */
unsigned isAttached :1; /* Flag to track if context is attached */
};
static HDC glWinMakeDC(__GLcontext *gc)
{
HDC dc;
/*if (gc->winInfo.hrgn == NULL)
{
GLWIN_DEBUG_MSG("Creating region from RECT(%ld,%ld,%ld,%ld):",
gc->winInfo.rect.left,
gc->winInfo.rect.top,
gc->winInfo.rect.right,
gc->winInfo.rect.bottom);
gc->winInfo.hrgn = CreateRectRgnIndirect(&gc->winInfo.rect);
GLWIN_DEBUG_MSG2("%p\n", gc->winInfo.hrgn);
}*/
if (glWinDebugSettings.enableTrace)
GLWIN_DEBUG_HWND(gc->winInfo.hwnd);
dc = GetDC(gc->winInfo.hwnd);
/*dc = GetDCEx(gc->winInfo.hwnd, gc->winInfo.hrgn,
DCX_WINDOW | DCX_NORESETATTRS ); */
if (dc == NULL)
ErrorF("GetDC error: %s\n", glWinErrorMessage());
return dc;
}
static void unattach(__GLcontext *gc)
{
BOOL ret;
GLWIN_DEBUG_MSG("unattach (ctx %p)\n", gc->ctx);
if (!gc->isAttached)
{
ErrorF("called unattach on an unattached context\n");
return;
}
if (gc->ctx)
{
ret = wglDeleteContext(gc->ctx);
if (!ret)
ErrorF("wglDeleteContext error: %s\n", glWinErrorMessage());
gc->ctx = NULL;
}
if (gc->winInfo.hrgn)
{
ret = DeleteObject(gc->winInfo.hrgn);
if (!ret)
ErrorF("DeleteObject error: %s\n", glWinErrorMessage());
gc->winInfo.hrgn = NULL;
}
gc->isAttached = 0;
}
static BOOL glWinAdjustHWND(__GLcontext *gc, WindowPtr pWin)
{
HDC dc;
BOOL ret;
HGLRC newctx;
HWND oldhwnd;
GLWIN_DEBUG_MSG("glWinAdjustHWND (ctx %p, pWin %p)\n", gc->ctx, pWin);
if (pWin == NULL)
{
GLWIN_DEBUG_MSG("Deferring until window is created\n");
return FALSE;
}
oldhwnd = gc->winInfo.hwnd;
winGetWindowInfo(pWin, &gc->winInfo);
GLWIN_DEBUG_HWND(gc->winInfo.hwnd);
if (gc->winInfo.hwnd == NULL)
{
GLWIN_DEBUG_MSG("Deferring until window is created\n");
return FALSE;
}
dc = glWinMakeDC(gc);
if (glWinDebugSettings.dumpDC)
GLWIN_DEBUG_MSG("Got HDC %p\n", dc);
gc->pixelFormat = ChoosePixelFormat(dc, &gc->pfd);
if (gc->pixelFormat == 0)
{
ErrorF("ChoosePixelFormat error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
ret = SetPixelFormat(dc, gc->pixelFormat, &gc->pfd);
if (!ret) {
ErrorF("SetPixelFormat error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
newctx = wglCreateContext(dc);
if (newctx == NULL) {
ErrorF("wglCreateContext error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
GLWIN_DEBUG_MSG("wglCreateContext (ctx %p)\n", newctx);
if (!wglShareLists(gc->ctx, newctx))
{
ErrorF("wglShareLists error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
if (oldhwnd != gc->winInfo.hwnd)
{
GLWIN_DEBUG_MSG("Trying wglCopyContext\n");
if (!wglCopyContext(gc->ctx, newctx, GL_ALL_ATTRIB_BITS))
{
ErrorF("wglCopyContext error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
}
if (!wglDeleteContext(gc->ctx))
{
ErrorF("wglDeleteContext error: %s\n", glWinErrorMessage());
}
gc->ctx = newctx;
if (!wglMakeCurrent(dc, gc->ctx)) {
ErrorF("glMakeCurrent error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
ReleaseDC(gc->winInfo.hwnd, dc);
return TRUE;
}
static BOOL glWinCreateContextReal(__GLcontext *gc, WindowPtr pWin)
{
HDC dc;
BOOL ret;
GLWIN_DEBUG_MSG("glWinCreateContextReal (pWin %p)\n", pWin);
if (pWin == NULL)
{
GLWIN_DEBUG_MSG("Deferring until window is created\n");
return FALSE;
}
winGetWindowInfo(pWin, &gc->winInfo);
GLWIN_DEBUG_HWND(gc->winInfo.hwnd);
if (gc->winInfo.hwnd == NULL)
{
GLWIN_DEBUG_MSG("Deferring until window is created\n");
return FALSE;
}
dc = glWinMakeDC(gc);
if (glWinDebugSettings.dumpDC)
GLWIN_DEBUG_MSG("Got HDC %p\n", dc);
gc->pixelFormat = ChoosePixelFormat(dc, &gc->pfd);
if (gc->pixelFormat == 0)
{
ErrorF("ChoosePixelFormat error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
ret = SetPixelFormat(dc, gc->pixelFormat, &gc->pfd);
if (!ret) {
ErrorF("SetPixelFormat error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
gc->ctx = wglCreateContext(dc);
if (gc->ctx == NULL) {
ErrorF("wglCreateContext error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
GLWIN_DEBUG_MSG("glWinCreateContextReal (ctx %p)\n", gc->ctx);
if (!wglMakeCurrent(dc, gc->ctx)) {
ErrorF("glMakeCurrent error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return FALSE;
}
ReleaseDC(gc->winInfo.hwnd, dc);
return TRUE;
}
static void attach(__GLcontext *gc, __GLdrawablePrivate *glPriv)
{
__GLXdrawablePrivate *glxPriv = (__GLXdrawablePrivate *)glPriv->other;
GLWIN_DEBUG_MSG("attach (ctx %p)\n", gc->ctx);
if (gc->isAttached)
{
ErrorF("called attach on an attached context\n");
return;
}
if (glxPriv->type == DRAWABLE_WINDOW)
{
WindowPtr pWin = (WindowPtr) glxPriv->pDraw;
if (pWin == NULL)
{
GLWIN_DEBUG_MSG("Deferring ChoosePixelFormat until window is created\n");
} else
{
if (glWinCreateContextReal(gc, pWin))
{
gc->isAttached = TRUE;
GLWIN_DEBUG_MSG("attached\n");
}
}
}
}
static GLboolean glWinLoseCurrent(__GLcontext *gc)
{
GLWIN_TRACE_MSG("glWinLoseCurrent (ctx %p)\n", gc->ctx);
__glXLastContext = NULL; /* Mesa does this; why? */
return GL_TRUE;
}
/* Context manipulation; return GL_FALSE on failure */
static GLboolean glWinDestroyContext(__GLcontext *gc)
{
GLWIN_DEBUG_MSG("glWinDestroyContext (ctx %p)\n", gc->ctx);
if (gc != NULL)
{
if (gc->isAttached)
unattach(gc);
if (gc->dc != NULL)
DeleteDC(gc->dc);
free(gc);
}
return GL_TRUE;
}
static GLboolean glWinMakeCurrent(__GLcontext *gc)
{
__GLdrawablePrivate *glPriv = gc->interface.imports.getDrawablePrivate(gc);
BOOL ret;
HDC dc;
GLWIN_TRACE_MSG(" (ctx %p)\n", gc->ctx);
if (!gc->isAttached)
attach(gc, glPriv);
if (gc->ctx == NULL) {
ErrorF("Context is NULL\n");
return GL_FALSE;
}
dc = glWinMakeDC(gc);
ret = wglMakeCurrent(dc, gc->ctx);
if (!ret)
ErrorF("glMakeCurrent error: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
return ret?GL_TRUE:GL_FALSE;
}
static GLboolean glWinShareContext(__GLcontext *gc, __GLcontext *gcShare)
{
GLWIN_DEBUG_MSG("glWinShareContext unimplemented\n");
return GL_TRUE;
}
static GLboolean glWinCopyContext(__GLcontext *dst, const __GLcontext *src,
GLuint mask)
{
BOOL ret;
GLWIN_DEBUG_MSG("glWinCopyContext\n");
ret = wglCopyContext(src->ctx, dst->ctx, mask);
if (!ret)
{
ErrorF("wglCopyContext error: %s\n", glWinErrorMessage());
return GL_FALSE;
}
return GL_TRUE;
}
static GLboolean glWinForceCurrent(__GLcontext *gc)
{
GLWIN_TRACE_MSG(" (ctx %p)\n", gc->ctx);
return GL_TRUE;
}
/* Drawing surface notification callbacks */
static GLboolean glWinNotifyResize(__GLcontext *gc)
{
GLWIN_DEBUG_MSG("unimplemented glWinNotifyResize");
return GL_TRUE;
}
static void glWinNotifyDestroy(__GLcontext *gc)
{
GLWIN_DEBUG_MSG("unimplemented glWinNotifyDestroy");
}
static void glWinNotifySwapBuffers(__GLcontext *gc)
{
GLWIN_DEBUG_MSG("unimplemented glWinNotifySwapBuffers");
}
/* Dispatch table override control for external agents like libGLS */
static struct __GLdispatchStateRec* glWinDispatchExec(__GLcontext *gc)
{
GLWIN_DEBUG_MSG("unimplemented glWinDispatchExec");
return NULL;
}
static void glWinBeginDispatchOverride(__GLcontext *gc)
{
GLWIN_DEBUG_MSG("unimplemented glWinBeginDispatchOverride");
}
static void glWinEndDispatchOverride(__GLcontext *gc)
{
GLWIN_DEBUG_MSG("unimplemented glWinEndDispatchOverride");
}
#define DUMP_PFD_FLAG(flag) \
if (pfd->dwFlags & flag) { \
ErrorF("%s%s", pipesym, #flag); \
pipesym = " | "; \
}
static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd)
{
const char *pipesym = ""; /* will be set after first flag dump */
ErrorF("PIXELFORMATDESCRIPTOR:\n");
ErrorF("nSize = %u\n", pfd->nSize);
ErrorF("nVersion = %u\n", pfd->nVersion);
ErrorF("dwFlags = %lu = {", pfd->dwFlags);
DUMP_PFD_FLAG(PFD_MAIN_PLANE);
DUMP_PFD_FLAG(PFD_OVERLAY_PLANE);
DUMP_PFD_FLAG(PFD_UNDERLAY_PLANE);
DUMP_PFD_FLAG(PFD_DOUBLEBUFFER);
DUMP_PFD_FLAG(PFD_STEREO);
DUMP_PFD_FLAG(PFD_DRAW_TO_WINDOW);
DUMP_PFD_FLAG(PFD_DRAW_TO_BITMAP);
DUMP_PFD_FLAG(PFD_SUPPORT_GDI);
DUMP_PFD_FLAG(PFD_SUPPORT_OPENGL);
DUMP_PFD_FLAG(PFD_GENERIC_FORMAT);
DUMP_PFD_FLAG(PFD_NEED_PALETTE);
DUMP_PFD_FLAG(PFD_NEED_SYSTEM_PALETTE);
DUMP_PFD_FLAG(PFD_SWAP_EXCHANGE);
DUMP_PFD_FLAG(PFD_SWAP_COPY);
DUMP_PFD_FLAG(PFD_SWAP_LAYER_BUFFERS);
DUMP_PFD_FLAG(PFD_GENERIC_ACCELERATED);
DUMP_PFD_FLAG(PFD_DEPTH_DONTCARE);
DUMP_PFD_FLAG(PFD_DOUBLEBUFFER_DONTCARE);
DUMP_PFD_FLAG(PFD_STEREO_DONTCARE);
ErrorF("}\n");
ErrorF("iPixelType = %hu = %s\n", pfd->iPixelType,
(pfd->iPixelType == PFD_TYPE_RGBA ? "PFD_TYPE_RGBA" : "PFD_TYPE_COLORINDEX"));
ErrorF("cColorBits = %hhu\n", pfd->cColorBits);
ErrorF("cRedBits = %hhu\n", pfd->cRedBits);
ErrorF("cRedShift = %hhu\n", pfd->cRedShift);
ErrorF("cGreenBits = %hhu\n", pfd->cGreenBits);
ErrorF("cGreenShift = %hhu\n", pfd->cGreenShift);
ErrorF("cBlueBits = %hhu\n", pfd->cBlueBits);
ErrorF("cBlueShift = %hhu\n", pfd->cBlueShift);
ErrorF("cAlphaBits = %hhu\n", pfd->cAlphaBits);
ErrorF("cAlphaShift = %hhu\n", pfd->cAlphaShift);
ErrorF("cAccumBits = %hhu\n", pfd->cAccumBits);
ErrorF("cAccumRedBits = %hhu\n", pfd->cAccumRedBits);
ErrorF("cAccumGreenBits = %hhu\n", pfd->cAccumGreenBits);
ErrorF("cAccumBlueBits = %hhu\n", pfd->cAccumBlueBits);
ErrorF("cAccumAlphaBits = %hhu\n", pfd->cAccumAlphaBits);
ErrorF("cDepthBits = %hhu\n", pfd->cDepthBits);
ErrorF("cStencilBits = %hhu\n", pfd->cStencilBits);
ErrorF("cAuxBuffers = %hhu\n", pfd->cAuxBuffers);
ErrorF("iLayerType = %hhu\n", pfd->iLayerType);
ErrorF("bReserved = %hhu\n", pfd->bReserved);
ErrorF("dwLayerMask = %lu\n", pfd->dwLayerMask);
ErrorF("dwVisibleMask = %lu\n", pfd->dwVisibleMask);
ErrorF("dwDamageMask = %lu\n", pfd->dwDamageMask);
ErrorF("\n");
}
static int makeFormat(__GLcontextModes *mode, PIXELFORMATDESCRIPTOR *pfdret)
{
PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
1, /* version number */
PFD_DRAW_TO_WINDOW | /* support window */
PFD_SUPPORT_OPENGL, /* support OpenGL */
PFD_TYPE_RGBA, /* RGBA type */
24, /* 24-bit color depth */
0, 0, 0, 0, 0, 0, /* color bits ignored */
0, /* no alpha buffer */
0, /* shift bit ignored */
0, /* no accumulation buffer */
0, 0, 0, 0, /* accum bits ignored */
0, /* 32-bit z-buffer */
0, /* no stencil buffer */
0, /* no auxiliary buffer */
PFD_MAIN_PLANE, /* main layer */
0, /* reserved */
0, 0, 0 /* layer masks ignored */
}, *result = &pfd;
/* disable anything but rgba. must get rgba to work first */
if (!mode->rgbMode)
return -1;
if (mode->stereoMode) {
result->dwFlags |= PFD_STEREO;
}
if (mode->doubleBufferMode) {
result->dwFlags |= PFD_DOUBLEBUFFER;
}
if (mode->colorIndexMode) {
/* ignored, see above */
result->iPixelType = PFD_TYPE_COLORINDEX;
result->cColorBits = mode->redBits + mode->greenBits + mode->blueBits;
result->cRedBits = mode->redBits;
result->cRedShift = 0; /* FIXME */
result->cGreenBits = mode->greenBits;
result->cGreenShift = 0; /* FIXME */
result->cBlueBits = mode->blueBits;
result->cBlueShift = 0; /* FIXME */
result->cAlphaBits = mode->alphaBits;
result->cAlphaShift = 0; /* FIXME */
}
if (mode->rgbMode) {
result->iPixelType = PFD_TYPE_RGBA;
result->cColorBits = mode->redBits + mode->greenBits + mode->blueBits;
result->cRedBits = mode->redBits;
result->cRedShift = 0; /* FIXME */
result->cGreenBits = mode->greenBits;
result->cGreenShift = 0; /* FIXME */
result->cBlueBits = mode->blueBits;
result->cBlueShift = 0; /* FIXME */
result->cAlphaBits = mode->alphaBits;
result->cAlphaShift = 0; /* FIXME */
}
if (mode->haveAccumBuffer) {
result->cAccumBits = mode->accumRedBits + mode->accumGreenBits
+ mode->accumBlueBits + mode->accumAlphaBits;
result->cAccumRedBits = mode->accumRedBits;
result->cAccumGreenBits = mode->accumGreenBits;
result->cAccumBlueBits = mode->accumBlueBits;
result->cAccumAlphaBits = mode->accumAlphaBits;
}
if (mode->haveDepthBuffer) {
result->cDepthBits = mode->depthBits;
}
if (mode->haveStencilBuffer) {
result->cStencilBits = mode->stencilBits;
}
/* result->cAuxBuffers = mode->numAuxBuffers; */
/* mode->level ignored */
/* mode->pixmapMode ? */
*pfdret = pfd;
return 0;
}
static __GLinterface *glWinCreateContext(__GLimports *imports,
__GLcontextModes *mode,
__GLinterface *shareGC)
{
__GLcontext *result;
GLWIN_DEBUG_MSG("glWinCreateContext\n");
result = (__GLcontext *)calloc(1, sizeof(__GLcontext));
if (!result)
return NULL;
result->interface.imports = *imports;
result->interface.exports = glWinExports;
if (makeFormat(mode, &result->pfd))
{
ErrorF("makeFormat failed\n");
free(result);
return NULL;
}
if (glWinDebugSettings.dumpPFD)
pfdOut(&result->pfd);
GLWIN_DEBUG_MSG("glWinCreateContext done\n");
return (__GLinterface *)result;
}
Bool
glWinRealizeWindow(WindowPtr pWin)
{
/* If this window has GL contexts, tell them to reattach */
/* reattaching is bad: display lists and parameters get lost */
Bool result;
ScreenPtr pScreen = pWin->drawable.pScreen;
glWinScreenRec *screenPriv = &glWinScreens[pScreen->myNum];
__GLXdrawablePrivate *glxPriv;
GLWIN_DEBUG_MSG("glWinRealizeWindow\n");
/* Allow the window to be created (RootlessRealizeWindow is inside our wrap) */
pScreen->RealizeWindow = screenPriv->RealizeWindow;
result = pScreen->RealizeWindow(pWin);
pScreen->RealizeWindow = glWinRealizeWindow;
/* Re-attach this window's GL contexts, if any. */
glxPriv = __glXFindDrawablePrivate(pWin->drawable.id);
if (glxPriv) {
__GLXcontext *gx;
__GLcontext *gc;
__GLdrawablePrivate *glPriv = &glxPriv->glPriv;
GLWIN_DEBUG_MSG("glWinRealizeWindow is GL drawable!\n");
/* GL contexts bound to this window for drawing */
for (gx = glxPriv->drawGlxc; gx != NULL; gx = gx->next) {
gc = (__GLcontext *)gx->gc;
if (gc->isAttached)
#if 1
{
GLWIN_DEBUG_MSG("context is already bound! Adjusting HWND.\n");
glWinAdjustHWND(gc, pWin);
continue;
}
#else
unattach(gc);
#endif
attach(gc, glPriv);
}
/* GL contexts bound to this window for reading */
for (gx = glxPriv->readGlxc; gx != NULL; gx = gx->next) {
gc = (__GLcontext *)gx->gc;
if (gc->isAttached)
#if 1
{
GLWIN_DEBUG_MSG("context is already bound! Adjusting HWND.\n");
glWinAdjustHWND(gc, pWin);
continue;
}
#else
unattach(gc);
#endif
attach(gc, glPriv);
}
}
return result;
}
void
glWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
{
ScreenPtr pScreen = pWindow->drawable.pScreen;
glWinScreenRec *screenPriv = &glWinScreens[pScreen->myNum];
__GLXdrawablePrivate *glxPriv;
GLWIN_TRACE_MSG(" (pWindow %p)\n", pWindow);
/* Check if the window is attached and discard any drawing request */
glxPriv = __glXFindDrawablePrivate(pWindow->drawable.id);
if (glxPriv) {
__GLXcontext *gx;
/* GL contexts bound to this window for drawing */
for (gx = glxPriv->drawGlxc; gx != NULL; gx = gx->next) {
/*
GLWIN_DEBUG_MSG("glWinCopyWindow - calling glDrawBuffer\n");
glDrawBuffer(GL_FRONT);
*/
return;
}
/* GL contexts bound to this window for reading */
for (gx = glxPriv->readGlxc; gx != NULL; gx = gx->next) {
return;
}
}
GLWIN_DEBUG_MSG("glWinCopyWindow - passing to hw layer\n");
pScreen->CopyWindow = screenPriv->CopyWindow;
pScreen->CopyWindow(pWindow, ptOldOrg, prgnSrc);
pScreen->CopyWindow = glWinCopyWindow;
}
Bool
glWinUnrealizeWindow(WindowPtr pWin)
{
/* If this window has GL contexts, tell them to unattach */
Bool result;
ScreenPtr pScreen = pWin->drawable.pScreen;
glWinScreenRec *screenPriv = &glWinScreens[pScreen->myNum];
__GLXdrawablePrivate *glxPriv;
GLWIN_DEBUG_MSG("glWinUnrealizeWindow\n");
/* The Aqua window may have already been destroyed (windows
* are unrealized from top down)
*/
/* Unattach this window's GL contexts, if any. */
glxPriv = __glXFindDrawablePrivate(pWin->drawable.id);
if (glxPriv) {
__GLXcontext *gx;
__GLcontext *gc;
GLWIN_DEBUG_MSG("glWinUnealizeWindow is GL drawable!\n");
/* GL contexts bound to this window for drawing */
for (gx = glxPriv->drawGlxc; gx != NULL; gx = gx->next) {
gc = (__GLcontext *)gx->gc;
unattach(gc);
}
/* GL contexts bound to this window for reading */
for (gx = glxPriv->readGlxc; gx != NULL; gx = gx->next) {
gc = (__GLcontext *)gx->gc;
unattach(gc);
}
}
pScreen->UnrealizeWindow = screenPriv->UnrealizeWindow;
result = pScreen->UnrealizeWindow(pWin);
pScreen->UnrealizeWindow = glWinUnrealizeWindow;
return result;
}
/*
* In the case the driver has no GLX visuals we'll use these.
* [0] = RGB, double buffered
* [1] = RGB, double buffered, stencil, accum
*/
/* Originally copied from Mesa */
static int numConfigs = 0;
static __GLXvisualConfig *visualConfigs = NULL;
static void **visualPrivates = NULL;
#define NUM_FALLBACK_CONFIGS 2
static __GLXvisualConfig FallbackConfigs[NUM_FALLBACK_CONFIGS] = {
{
-1, /* vid */
-1, /* class */
True, /* rgba */
-1, -1, -1, 0, /* rgba sizes */
-1, -1, -1, 0, /* rgba masks */
0, 0, 0, 0, /* rgba accum sizes */
True, /* doubleBuffer */
False, /* stereo */
-1, /* bufferSize */
16, /* depthSize */
0, /* stencilSize */
0, /* auxBuffers */
0, /* level */
GLX_NONE_EXT, /* visualRating */
0, /* transparentPixel */
0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
0 /* transparentIndex */
},
{
-1, /* vid */
-1, /* class */
True, /* rgba */
-1, -1, -1, 0, /* rgba sizes */
-1, -1, -1, 0, /* rgba masks */
16, 16, 16, 0, /* rgba accum sizes */
True, /* doubleBuffer */
False, /* stereo */
-1, /* bufferSize */
16, /* depthSize */
8, /* stencilSize */
0, /* auxBuffers */
0, /* level */
GLX_NONE_EXT, /* visualRating */
0, /* transparentPixel */
0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
0 /* transparentIndex */
}
};
static __GLXvisualConfig NullConfig = {
-1, /* vid */
-1, /* class */
False, /* rgba */
-1, -1, -1, 0, /* rgba sizes */
-1, -1, -1, 0, /* rgba masks */
0, 0, 0, 0, /* rgba accum sizes */
False, /* doubleBuffer */
False, /* stereo */
-1, /* bufferSize */
16, /* depthSize */
0, /* stencilSize */
0, /* auxBuffers */
0, /* level */
GLX_NONE_EXT, /* visualRating */
0, /* transparentPixel */
0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
0 /* transparentIndex */
};
static inline int count_bits(uint32_t x)
{
x = x - ((x >> 1) & 0x55555555);
x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
x = (x + (x >> 4)) & 0x0f0f0f0f;
x = x + (x >> 8);
x = x + (x >> 16);
return x & 63;
}
/* Mostly copied from Mesa's xf86glx.c */
static Bool init_visuals(int *nvisualp, VisualPtr *visualp,
VisualID *defaultVisp,
int ndepth, DepthPtr pdepth,
int rootDepth)
{
int numRGBconfigs;
int numCIconfigs;
int numVisuals = *nvisualp;
int numNewVisuals;
int numNewConfigs;
VisualPtr pVisual = *visualp;
VisualPtr pVisualNew = NULL;
VisualID *orig_vid = NULL;
__GLcontextModes *modes = NULL;
__GLXvisualConfig *pNewVisualConfigs = NULL;
void **glXVisualPriv;
void **pNewVisualPriv;
int found_default;
int i, j, k;
GLWIN_DEBUG_MSG("init_visuals\n");
if (numConfigs > 0)
numNewConfigs = numConfigs;
else
numNewConfigs = NUM_FALLBACK_CONFIGS;
/* Alloc space for the list of new GLX visuals */
pNewVisualConfigs = (__GLXvisualConfig *)
__glXMalloc(numNewConfigs * sizeof(__GLXvisualConfig));
if (!pNewVisualConfigs) {
return FALSE;
}
/* Alloc space for the list of new GLX visual privates */
pNewVisualPriv = (void **) __glXMalloc(numNewConfigs * sizeof(void *));
if (!pNewVisualPriv) {
__glXFree(pNewVisualConfigs);
return FALSE;
}
/*
** If SetVisualConfigs was not called, then use default GLX
** visual configs.
*/
if (numConfigs == 0) {
memcpy(pNewVisualConfigs, FallbackConfigs,
NUM_FALLBACK_CONFIGS * sizeof(__GLXvisualConfig));
memset(pNewVisualPriv, 0, NUM_FALLBACK_CONFIGS * sizeof(void *));
}
else {
/* copy driver's visual config info */
for (i = 0; i < numConfigs; i++) {
pNewVisualConfigs[i] = visualConfigs[i];
pNewVisualPriv[i] = visualPrivates[i];
}
}
/* Count the number of RGB and CI visual configs */
numRGBconfigs = 0;
numCIconfigs = 0;
for (i = 0; i < numNewConfigs; i++) {
if (pNewVisualConfigs[i].rgba)
numRGBconfigs++;
else
numCIconfigs++;
}
/* Count the total number of visuals to compute */
numNewVisuals = 0;
for (i = 0; i < numVisuals; i++) {
int count;
count = ((pVisual[i].class == TrueColor
|| pVisual[i].class == DirectColor)
? numRGBconfigs : numCIconfigs);
if (count == 0)
count = 1; /* preserve the existing visual */
numNewVisuals += count;
}
/* Reset variables for use with the next screen/driver's visual configs */
visualConfigs = NULL;
numConfigs = 0;
/* Alloc temp space for the list of orig VisualIDs for each new visual */
orig_vid = (VisualID *)__glXMalloc(numNewVisuals * sizeof(VisualID));
if (!orig_vid) {
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
return FALSE;
}
/* Alloc space for the list of glXVisuals */
modes = _gl_context_modes_create(numNewVisuals, sizeof(__GLcontextModes));
if (modes == NULL) {
__glXFree(orig_vid);
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
return FALSE;
}
/* Alloc space for the list of glXVisualPrivates */
glXVisualPriv = (void **)__glXMalloc(numNewVisuals * sizeof(void *));
if (!glXVisualPriv) {
_gl_context_modes_destroy( modes );
__glXFree(orig_vid);
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
return FALSE;
}
/* Alloc space for the new list of the X server's visuals */
pVisualNew = (VisualPtr)__glXMalloc(numNewVisuals * sizeof(VisualRec));
if (!pVisualNew) {
__glXFree(glXVisualPriv);
_gl_context_modes_destroy( modes );
__glXFree(orig_vid);
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
return FALSE;
}
/* Initialize the new visuals */
found_default = FALSE;
glWinScreens[screenInfo.numScreens-1].modes = modes;
for (i = j = 0; i < numVisuals; i++) {
int is_rgb = (pVisual[i].class == TrueColor ||
pVisual[i].class == DirectColor);
if (!is_rgb)
{
/* We don't support non-rgb visuals for GL. But we don't
want to remove them either, so just pass them through
with null glX configs */
pVisualNew[j] = pVisual[i];
pVisualNew[j].vid = FakeClientID(0);
/* Check for the default visual */
if (!found_default && pVisual[i].vid == *defaultVisp) {
*defaultVisp = pVisualNew[j].vid;
found_default = TRUE;
}
/* Save the old VisualID */
orig_vid[j] = pVisual[i].vid;
/* Initialize the glXVisual */
_gl_copy_visual_to_context_mode( modes, & NullConfig );
modes->visualID = pVisualNew[j].vid;
j++;
continue;
}
for (k = 0; k < numNewConfigs; k++) {
if (pNewVisualConfigs[k].rgba != is_rgb)
continue;
assert( modes != NULL );
/* Initialize the new visual */
pVisualNew[j] = pVisual[i];
pVisualNew[j].vid = FakeClientID(0);
/* Check for the default visual */
if (!found_default && pVisual[i].vid == *defaultVisp) {
*defaultVisp = pVisualNew[j].vid;
found_default = TRUE;
}
/* Save the old VisualID */
orig_vid[j] = pVisual[i].vid;
/* Initialize the glXVisual */
_gl_copy_visual_to_context_mode( modes, & pNewVisualConfigs[k] );
modes->visualID = pVisualNew[j].vid;
/*
* If the class is -1, then assume the X visual information
* is identical to what GLX needs, and take them from the X
* visual. NOTE: if class != -1, then all other fields MUST
* be initialized.
*/
if (modes->visualType == GLX_NONE) {
modes->visualType = _gl_convert_from_x_visual_type( pVisual[i].class );
modes->redBits = count_bits(pVisual[i].redMask);
modes->greenBits = count_bits(pVisual[i].greenMask);
modes->blueBits = count_bits(pVisual[i].blueMask);
modes->alphaBits = modes->alphaBits;
modes->redMask = pVisual[i].redMask;
modes->greenMask = pVisual[i].greenMask;
modes->blueMask = pVisual[i].blueMask;
modes->alphaMask = modes->alphaMask;
modes->rgbBits = (is_rgb)
? (modes->redBits + modes->greenBits +
modes->blueBits + modes->alphaBits)
: rootDepth;
}
/* Save the device-dependent private for this visual */
glXVisualPriv[j] = pNewVisualPriv[k];
j++;
modes = modes->next;
}
}
assert(j <= numNewVisuals);
/* Save the GLX visuals in the screen structure */
glWinScreens[screenInfo.numScreens-1].num_vis = numNewVisuals;
glWinScreens[screenInfo.numScreens-1].priv = glXVisualPriv;
/* Set up depth's VisualIDs */
for (i = 0; i < ndepth; i++) {
int numVids = 0;
VisualID *pVids = NULL;
int k, n = 0;
/* Count the new number of VisualIDs at this depth */
for (j = 0; j < pdepth[i].numVids; j++)
for (k = 0; k < numNewVisuals; k++)
if (pdepth[i].vids[j] == orig_vid[k])
numVids++;
/* Allocate a new list of VisualIDs for this depth */
pVids = (VisualID *)__glXMalloc(numVids * sizeof(VisualID));
/* Initialize the new list of VisualIDs for this depth */
for (j = 0; j < pdepth[i].numVids; j++)
for (k = 0; k < numNewVisuals; k++)
if (pdepth[i].vids[j] == orig_vid[k])
pVids[n++] = pVisualNew[k].vid;
/* Update this depth's list of VisualIDs */
__glXFree(pdepth[i].vids);
pdepth[i].vids = pVids;
pdepth[i].numVids = numVids;
}
/* Update the X server's visuals */
*nvisualp = numNewVisuals;
*visualp = pVisualNew;
/* Free the old list of the X server's visuals */
__glXFree(pVisual);
/* Clean up temporary allocations */
__glXFree(orig_vid);
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
/* Free the private list created by DDX HW driver */
if (visualPrivates)
xfree(visualPrivates);
visualPrivates = NULL;
return TRUE;
}
static void fixup_visuals(int screen)
{
ScreenPtr pScreen = screenInfo.screens[screen];
glWinScreenRec *pScr = &glWinScreens[screen];
__GLcontextModes *modes;
int j;
GLWIN_DEBUG_MSG("fixup_visuals\n");
for (modes = pScr->modes; modes != NULL; modes = modes->next ) {
const int vis_class = _gl_convert_to_x_visual_type( modes->visualType );
const int nplanes = (modes->rgbBits - modes->alphaBits);
VisualPtr pVis = pScreen->visuals;
/* Find a visual that matches the GLX visual's class and size */
for (j = 0; j < pScreen->numVisuals; j++) {
if (pVis[j].class == vis_class &&
pVis[j].nplanes == nplanes) {
/* Fixup the masks */
modes->redMask = pVis[j].redMask;
modes->greenMask = pVis[j].greenMask;
modes->blueMask = pVis[j].blueMask;
/* Recalc the sizes */
modes->redBits = count_bits(modes->redMask);
modes->greenBits = count_bits(modes->greenMask);
modes->blueBits = count_bits(modes->blueMask);
}
}
}
}
static void init_screen_visuals(int screen)
{
ScreenPtr pScreen = screenInfo.screens[screen];
__GLcontextModes *modes;
int *used;
int i, j;
GLWIN_DEBUG_MSG("init_screen_visuals\n");
used = (int *)__glXMalloc(pScreen->numVisuals * sizeof(int));
__glXMemset(used, 0, pScreen->numVisuals * sizeof(int));
i = 0;
for ( modes = glWinScreens[screen].modes
; modes != NULL
; modes = modes->next) {
const int vis_class = _gl_convert_to_x_visual_type( modes->visualType );
const int nplanes = (modes->rgbBits - modes->alphaBits);
const VisualPtr pVis = pScreen->visuals;
for (j = 0; j < pScreen->numVisuals; j++) {
if (pVis[j].class == vis_class &&
pVis[j].nplanes == nplanes &&
pVis[j].redMask == modes->redMask &&
pVis[j].greenMask == modes->greenMask &&
pVis[j].blueMask == modes->blueMask &&
!used[j]) {
#if 0
/* Create the XMesa visual */
pXMesaVisual[i] =
XMesaCreateVisual(pScreen,
pVis,
modes->rgbMode,
(modes->alphaBits > 0),
modes->doubleBufferMode,
modes->stereoMode,
GL_TRUE, /* ximage_flag */
modes->depthBits,
modes->stencilBits,
modes->accumRedBits,
modes->accumGreenBits,
modes->accumBlueBits,
modes->accumAlphaBits,
modes->samples,
modes->level,
modes->visualRating);
#endif
/* Set the VisualID */
modes->visualID = pVis[j].vid;
/* Mark this visual used */
used[j] = 1;
break;
}
}
if ( j == pScreen->numVisuals ) {
ErrorF("No matching visual for __GLcontextMode with "
"visual class = %d (%d), nplanes = %u\n",
vis_class,
modes->visualType,
(modes->rgbBits - modes->alphaBits) );
}
else if ( modes->visualID == -1 ) {
FatalError( "Matching visual found, but visualID still -1!\n" );
}
i++;
}
__glXFree(used);
/* glWinScreens[screen].xm_vis = pXMesaVisual; */
}
static Bool glWinScreenProbe(int screen)
{
ScreenPtr pScreen;
glWinScreenRec *screenPriv;
GLWIN_DEBUG_MSG("glWinScreenProbe\n");
/*
* Set up the current screen's visuals.
*/
__glDDXScreenInfo.modes = glWinScreens[screen].modes;
__glDDXScreenInfo.pVisualPriv = glWinScreens[screen].priv;
__glDDXScreenInfo.numVisuals =
__glDDXScreenInfo.numUsableVisuals = glWinScreens[screen].num_vis;
/*
* Set the current screen's createContext routine. This could be
* wrapped by a DDX GLX context creation routine.
*/
__glDDXScreenInfo.createContext = glWinCreateContext;
/*
* The ordering of the rgb compenents might have been changed by the
* driver after mi initialized them.
*/
fixup_visuals(screen);
/*
* Find the GLX visuals that are supported by this screen and create
* XMesa's visuals.
*/
init_screen_visuals(screen);
/* Wrap RealizeWindow and UnrealizeWindow on this screen */
pScreen = screenInfo.screens[screen];
screenPriv = &glWinScreens[screen];
screenPriv->RealizeWindow = pScreen->RealizeWindow;
pScreen->RealizeWindow = glWinRealizeWindow;
screenPriv->UnrealizeWindow = pScreen->UnrealizeWindow;
pScreen->UnrealizeWindow = glWinUnrealizeWindow;
screenPriv->CopyWindow = pScreen->CopyWindow;
pScreen->CopyWindow = glWinCopyWindow;
return TRUE;
}
static GLboolean glWinSwapBuffers(__GLXdrawablePrivate *glxPriv)
{
/* swap buffers on only *one* of the contexts
* (e.g. the last one for drawing)
*/
__GLcontext *gc = (__GLcontext *)glxPriv->drawGlxc->gc;
HDC dc;
BOOL ret;
GLWIN_TRACE_MSG("glWinSwapBuffers (ctx %p)\n", (gc!=NULL?gc->ctx:NULL));
if (gc != NULL && gc->ctx != NULL)
{
dc = glWinMakeDC(gc);
if (dc == NULL)
return GL_FALSE;
ret = SwapBuffers(dc);
if (!ret)
ErrorF("SwapBuffers failed: %s\n", glWinErrorMessage());
ReleaseDC(gc->winInfo.hwnd, dc);
if (!ret)
return GL_FALSE;
}
return GL_TRUE;
}
static void glWinDestroyDrawablePrivate(__GLdrawablePrivate *glPriv)
{
GLWIN_DEBUG_MSG("glWinDestroyDrawablePrivate\n");
/* It doesn't work to call DRIDestroySurface here, the drawable's
already gone.. But dri.c notices the window destruction and
frees the surface itself. */
free(glPriv->private);
glPriv->private = NULL;
}
static void glWinCreateBuffer(__GLXdrawablePrivate *glxPriv)
{
GLWinDrawableRec *winPriv = malloc(sizeof(GLWinDrawableRec));
__GLdrawablePrivate *glPriv = &glxPriv->glPriv;
/*winPriv->sid = 0; */
winPriv->pDraw = NULL;
GLWIN_DEBUG_MSG("glWinCreateBuffer\n");
/* replace swapBuffers (original is never called) */
glxPriv->swapBuffers = glWinSwapBuffers;
/* stash private data */
glPriv->private = winPriv;
glPriv->freePrivate = glWinDestroyDrawablePrivate;
}
static void glWinResetExtension(void)
{
GLWIN_DEBUG_MSG("glWinResetExtension\n");
}
/* based on code in apples/indirect.c which is based on i830_dri.c */
static void
glWinInitVisualConfigs(void)
{
int lclNumConfigs = 0;
__GLXvisualConfig *lclVisualConfigs = NULL;
void **lclVisualPrivates = NULL;
int depth, aux, buffers, stencil, accum;
int i = 0;
GLWIN_DEBUG_MSG("glWinInitVisualConfigs ");
/* count num configs:
2 Z buffer (0, 24 bit)
2 AUX buffer (0, 2)
2 buffers (single, double)
2 stencil (0, 8 bit)
2 accum (0, 64 bit)
= 32 configs */
lclNumConfigs = 2 * 2 * 2 * 2 * 2; /* 32 */
/* alloc */
lclVisualConfigs = xcalloc(sizeof(__GLXvisualConfig), lclNumConfigs);
lclVisualPrivates = xcalloc(sizeof(void *), lclNumConfigs);
/* fill in configs */
if (NULL != lclVisualConfigs) {
i = 0; /* current buffer */
for (depth = 0; depth < 2; depth++) {
for (aux = 0; aux < 2; aux++) {
for (buffers = 0; buffers < 2; buffers++) {
for (stencil = 0; stencil < 2; stencil++) {
for (accum = 0; accum < 2; accum++) {
lclVisualConfigs[i].vid = -1;
lclVisualConfigs[i].class = -1;
lclVisualConfigs[i].rgba = TRUE;
lclVisualConfigs[i].redSize = -1;
lclVisualConfigs[i].greenSize = -1;
lclVisualConfigs[i].blueSize = -1;
lclVisualConfigs[i].redMask = -1;
lclVisualConfigs[i].greenMask = -1;
lclVisualConfigs[i].blueMask = -1;
lclVisualConfigs[i].alphaMask = 0;
if (accum) {
lclVisualConfigs[i].accumRedSize = 16;
lclVisualConfigs[i].accumGreenSize = 16;
lclVisualConfigs[i].accumBlueSize = 16;
lclVisualConfigs[i].accumAlphaSize = 16;
}
else {
lclVisualConfigs[i].accumRedSize = 0;
lclVisualConfigs[i].accumGreenSize = 0;
lclVisualConfigs[i].accumBlueSize = 0;
lclVisualConfigs[i].accumAlphaSize = 0;
}
lclVisualConfigs[i].doubleBuffer = buffers ? TRUE : FALSE;
lclVisualConfigs[i].stereo = FALSE;
lclVisualConfigs[i].bufferSize = -1;
lclVisualConfigs[i].depthSize = depth? 24 : 0;
lclVisualConfigs[i].stencilSize = stencil ? 8 : 0;
lclVisualConfigs[i].auxBuffers = aux ? 2 : 0;
lclVisualConfigs[i].level = 0;
lclVisualConfigs[i].visualRating = GLX_NONE_EXT;
lclVisualConfigs[i].transparentPixel = 0;
lclVisualConfigs[i].transparentRed = 0;
lclVisualConfigs[i].transparentGreen = 0;
lclVisualConfigs[i].transparentBlue = 0;
lclVisualConfigs[i].transparentAlpha = 0;
lclVisualConfigs[i].transparentIndex = 0;
i++;
}
}
}
}
}
}
if (i != lclNumConfigs)
GLWIN_DEBUG_MSG("glWinInitVisualConfigs failed to alloc visual configs");
GlxSetVisualConfigs(lclNumConfigs, lclVisualConfigs, lclVisualPrivates);
}
/* Copied from Mesa */
static void glWinSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs,
void **privates)
{
GLWIN_DEBUG_MSG("glWinSetVisualConfigs\n");
numConfigs = nconfigs;
visualConfigs = configs;
visualPrivates = privates;
}
/* Copied from Mesa */
static Bool glWinInitVisuals(VisualPtr *visualp, DepthPtr *depthp,
int *nvisualp, int *ndepthp,
int *rootDepthp, VisualID *defaultVisp,
unsigned long sizes, int bitsPerRGB)
{
glWinInitDebugSettings();
GLWIN_DEBUG_MSG("glWinInitVisuals\n");
if (0 == numConfigs) /* if no configs */
glWinInitVisualConfigs(); /* ensure the visula configs are setup */
/*
* Setup the visuals supported by this particular screen.
*/
return init_visuals(nvisualp, visualp, defaultVisp,
*ndepthp, *depthp, *rootDepthp);
}
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