diff options
Diffstat (limited to 'xorg-server/hw/xwin/glx/indirect.c')
| -rw-r--r-- | xorg-server/hw/xwin/glx/indirect.c | 1605 |
1 files changed, 1605 insertions, 0 deletions
diff --git a/xorg-server/hw/xwin/glx/indirect.c b/xorg-server/hw/xwin/glx/indirect.c new file mode 100644 index 000000000..5e12022f4 --- /dev/null +++ b/xorg-server/hw/xwin/glx/indirect.c @@ -0,0 +1,1605 @@ +/* + * 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); +} |