diff options
Diffstat (limited to 'xorg-server/hw')
| -rw-r--r-- | xorg-server/hw/xfree86/common/xf86Mode.c | 200 | ||||
| -rw-r--r-- | xorg-server/hw/xfree86/common/xf86RandR.c | 1 | ||||
| -rw-r--r-- | xorg-server/hw/xfree86/loader/sdksyms.sh | 1 | ||||
| -rw-r--r-- | xorg-server/hw/xfree86/modes/xf86RandR12.c | 1 | ||||
| -rw-r--r-- | xorg-server/hw/xwin/glx/gen_gl_wrappers.py | 1 | ||||
| -rw-r--r-- | xorg-server/hw/xwin/glx/glwrap.c | 21 | ||||
| -rw-r--r-- | xorg-server/hw/xwin/glx/indirect.c | 4899 | ||||
| -rw-r--r-- | xorg-server/hw/xwin/glx/winpriv.c | 94 | ||||
| -rw-r--r-- | xorg-server/hw/xwin/glx/winpriv.h | 33 |
9 files changed, 2680 insertions, 2571 deletions
diff --git a/xorg-server/hw/xfree86/common/xf86Mode.c b/xorg-server/hw/xfree86/common/xf86Mode.c index 949d4fcfa..5d30a782c 100644 --- a/xorg-server/hw/xfree86/common/xf86Mode.c +++ b/xorg-server/hw/xfree86/common/xf86Mode.c @@ -26,6 +26,52 @@ */ /* + * LCM() and scanLineWidth() are: + * + * Copyright 1997 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of Marc Aurele La France not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. Marc Aurele La France makes no representations + * about the suitability of this software for any purpose. It is provided + * "as-is" without express or implied warranty. + * + * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO + * EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + * + * Copyright 1990,91,92,93 by Thomas Roell, Germany. + * Copyright 1991,92,93 by SGCS (Snitily Graphics Consulting Services), USA. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation, and that the name of Thomas Roell nor + * SGCS be used in advertising or publicity pertaining to distribution + * of the software without specific, written prior permission. + * Thomas Roell nor SGCS makes no representations about the suitability + * of this software for any purpose. It is provided "as is" without + * express or implied warranty. + * + * THOMAS ROELL AND SGCS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THOMAS ROELL OR SGCS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* * Authors: Dirk Hohndel <hohndel@XFree86.Org> * David Dawes <dawes@XFree86.Org> * Marc La France <tsi@XFree86.Org> @@ -42,7 +88,6 @@ #include "xf86Modes.h" #include "os.h" #include "servermd.h" -#include "mibank.h" #include "globals.h" #include "xf86.h" #include "xf86Priv.h" @@ -1126,6 +1171,131 @@ found: return 1; } +/* Least common multiple */ +static unsigned int +LCM(unsigned int x, unsigned int y) +{ + unsigned int m = x, n = y, o; + + while ((o = m % n)) + { + m = n; + n = o; + } + + return (x / n) * y; +} + +/* + * Given various screen attributes, determine the minimum scanline width such + * that each scanline is server and DDX padded and any pixels with imbedded + * bank boundaries are off-screen. This function returns -1 if such a width + * cannot exist. + */ +static int +scanLineWidth( + unsigned int xsize, /* pixels */ + unsigned int ysize, /* pixels */ + unsigned int width, /* pixels */ + unsigned long BankSize, /* char's */ + PixmapFormatRec *pBankFormat, + unsigned int nWidthUnit /* bits */ +) +{ + unsigned long nBitsPerBank, nBitsPerScanline, nBitsPerScanlinePadUnit; + unsigned long minBitsPerScanline, maxBitsPerScanline; + + /* Sanity checks */ + + if (!nWidthUnit || !pBankFormat) + return -1; + + nBitsPerBank = BankSize * 8; + if (nBitsPerBank % pBankFormat->scanlinePad) + return -1; + + if (xsize > width) + width = xsize; + nBitsPerScanlinePadUnit = LCM(pBankFormat->scanlinePad, nWidthUnit); + nBitsPerScanline = + (((width * pBankFormat->bitsPerPixel) + nBitsPerScanlinePadUnit - 1) / + nBitsPerScanlinePadUnit) * nBitsPerScanlinePadUnit; + width = nBitsPerScanline / pBankFormat->bitsPerPixel; + + if (!xsize || !(nBitsPerBank % pBankFormat->bitsPerPixel)) + return (int)width; + + /* + * Scanlines will be server-pad aligned at this point. They will also be + * a multiple of nWidthUnit bits long. Ensure that pixels with imbedded + * bank boundaries are off-screen. + * + * It seems reasonable to limit total frame buffer size to 1/16 of the + * theoretical maximum address space size. On a machine with 32-bit + * addresses (to 8-bit quantities) this turns out to be 256MB. Not only + * does this provide a simple limiting condition for the loops below, but + * it also prevents unsigned long wraparounds. + */ + if (!ysize) + return -1; + + minBitsPerScanline = xsize * pBankFormat->bitsPerPixel; + if (minBitsPerScanline > nBitsPerBank) + return -1; + + if (ysize == 1) + return (int)width; + + maxBitsPerScanline = + (((unsigned long)(-1) >> 1) - minBitsPerScanline) / (ysize - 1); + while (nBitsPerScanline <= maxBitsPerScanline) + { + unsigned long BankBase, BankUnit; + + BankUnit = ((nBitsPerBank + nBitsPerScanline - 1) / nBitsPerBank) * + nBitsPerBank; + if (!(BankUnit % nBitsPerScanline)) + return (int)width; + + for (BankBase = BankUnit; ; BankBase += nBitsPerBank) + { + unsigned long x, y; + + y = BankBase / nBitsPerScanline; + if (y >= ysize) + return (int)width; + + x = BankBase % nBitsPerScanline; + if (!(x % pBankFormat->bitsPerPixel)) + continue; + + if (x < minBitsPerScanline) + { + /* + * Skip ahead certain widths by dividing the excess scanline + * amongst the y's. + */ + y *= nBitsPerScanlinePadUnit; + nBitsPerScanline += + ((x + y - 1) / y) * nBitsPerScanlinePadUnit; + width = nBitsPerScanline / pBankFormat->bitsPerPixel; + break; + } + + if (BankBase != BankUnit) + continue; + + if (!(nBitsPerScanline % x)) + return (int)width; + + BankBase = ((nBitsPerScanline - minBitsPerScanline) / + (nBitsPerScanline - x)) * BankUnit; + } + } + + return -1; +} + /* * xf86ValidateModes * @@ -1312,7 +1482,7 @@ xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes, memcpy(storeClockRanges, cp, sizeof(ClockRange)); } - /* Determine which pixmap format to pass to miScanLineWidth() */ + /* Determine which pixmap format to pass to scanLineWidth() */ if (scrp->depth > 4) BankFormat = &scrp->fbFormat; else @@ -1363,15 +1533,15 @@ xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes, for (i = 0; linePitches[i] != 0; i++) { if ((linePitches[i] >= virtualX) && (linePitches[i] == - miScanLineWidth(virtualX, virtualY, linePitches[i], - apertureSize, BankFormat, pitchInc))) { + scanLineWidth(virtualX, virtualY, linePitches[i], + apertureSize, BankFormat, pitchInc))) { linePitch = linePitches[i]; break; } } } else { - linePitch = miScanLineWidth(virtualX, virtualY, minPitch, - apertureSize, BankFormat, pitchInc); + linePitch = scanLineWidth(virtualX, virtualY, minPitch, + apertureSize, BankFormat, pitchInc); } if ((linePitch < minPitch) || (linePitch > maxPitch)) { @@ -1396,8 +1566,8 @@ xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes, /* XXX this doesn't take m{in,ax}Pitch into account; oh well */ inferred_virtual = inferVirtualSize(scrp, availModes, &virtX, &virtY); if (inferred_virtual) - linePitch = miScanLineWidth(virtX, virtY, minPitch, apertureSize, - BankFormat, pitchInc); + linePitch = scanLineWidth(virtX, virtY, minPitch, apertureSize, + BankFormat, pitchInc); } /* Print clock ranges and scaled clocks */ @@ -1609,8 +1779,8 @@ xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes, if ((linePitches[i] >= newVirtX) && (linePitches[i] >= linePitch) && (linePitches[i] == - miScanLineWidth(newVirtX, newVirtY, linePitches[i], - apertureSize, BankFormat, pitchInc))) { + scanLineWidth(newVirtX, newVirtY, linePitches[i], + apertureSize, BankFormat, pitchInc))) { newLinePitch = linePitches[i]; break; } @@ -1618,9 +1788,9 @@ xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes, } else { if (linePitch < minPitch) linePitch = minPitch; - newLinePitch = miScanLineWidth(newVirtX, newVirtY, linePitch, - apertureSize, BankFormat, - pitchInc); + newLinePitch = scanLineWidth(newVirtX, newVirtY, linePitch, + apertureSize, BankFormat, + pitchInc); } if ((newLinePitch < minPitch) || (newLinePitch > maxPitch)) { p->status = MODE_BAD_WIDTH; @@ -1682,8 +1852,8 @@ xf86ValidateModes(ScrnInfoPtr scrp, DisplayModePtr availModes, virtX, virtY, vx, vy); virtX = vx; virtY = vy; - linePitch = miScanLineWidth(vx, vy, minPitch, apertureSize, - BankFormat, pitchInc); + linePitch = scanLineWidth(vx, vy, minPitch, apertureSize, + BankFormat, pitchInc); } } diff --git a/xorg-server/hw/xfree86/common/xf86RandR.c b/xorg-server/hw/xfree86/common/xf86RandR.c index d4beb2ce2..86c7bde79 100644 --- a/xorg-server/hw/xfree86/common/xf86RandR.c +++ b/xorg-server/hw/xfree86/common/xf86RandR.c @@ -27,7 +27,6 @@ #include <X11/X.h> #include "os.h" -#include "mibank.h" #include "globals.h" #include "xf86.h" #include "xf86str.h" diff --git a/xorg-server/hw/xfree86/loader/sdksyms.sh b/xorg-server/hw/xfree86/loader/sdksyms.sh index eea024063..13c5ae5f8 100644 --- a/xorg-server/hw/xfree86/loader/sdksyms.sh +++ b/xorg-server/hw/xfree86/loader/sdksyms.sh @@ -217,7 +217,6 @@ cat > sdksyms.c << EOF /* mi/Makefile.am */ -#include "mibank.h" #include "micmap.h" #include "miline.h" #include "mipointer.h" diff --git a/xorg-server/hw/xfree86/modes/xf86RandR12.c b/xorg-server/hw/xfree86/modes/xf86RandR12.c index 7ba09b6fe..8898f4dad 100644 --- a/xorg-server/hw/xfree86/modes/xf86RandR12.c +++ b/xorg-server/hw/xfree86/modes/xf86RandR12.c @@ -30,7 +30,6 @@ #include "xf86.h" #include "os.h" -#include "mibank.h" #include "globals.h" #include "xf86.h" #include "xf86Priv.h" diff --git a/xorg-server/hw/xwin/glx/gen_gl_wrappers.py b/xorg-server/hw/xwin/glx/gen_gl_wrappers.py index 6bba3079e..06c6e7bbf 100644 --- a/xorg-server/hw/xwin/glx/gen_gl_wrappers.py +++ b/xorg-server/hw/xwin/glx/gen_gl_wrappers.py @@ -315,7 +315,6 @@ if dispatchheader : print 'void glWinSetupDispatchTable(void)' print '{' print ' struct _glapi_table *disp = _glapi_get_dispatch();' - print ' gl_dispatch_debugging();\n' for d in sorted(dispatch.keys()) : if wrappers.has_key(d) : diff --git a/xorg-server/hw/xwin/glx/glwrap.c b/xorg-server/hw/xwin/glx/glwrap.c index 75065726f..fe59f71ef 100644 --- a/xorg-server/hw/xwin/glx/glwrap.c +++ b/xorg-server/hw/xwin/glx/glwrap.c @@ -124,27 +124,6 @@ glWinResolveHelper(PROC *cache, char *symbol) #define RESOLVED_PROC(proctype) proc /* - * GL dispatch table debugging - */ - -static void -warn_func(void * ctx, const char *format, ...) -{ - va_list v; - va_start(v, format); - VErrorF(format, v); - va_end(v); - ErrorF("\n"); -} - -static void -gl_dispatch_debugging(void) -{ - _glapi_set_warning_func(warn_func); - _glapi_noop_enable_warnings(TRUE); -} - -/* Include generated cdecl wrappers for stdcall gl*() functions in opengl32.dll OpenGL 1.2 and upward is treated as extensions, function address must diff --git a/xorg-server/hw/xwin/glx/indirect.c b/xorg-server/hw/xwin/glx/indirect.c index 7247992dc..098973ca3 100644 --- a/xorg-server/hw/xwin/glx/indirect.c +++ b/xorg-server/hw/xwin/glx/indirect.c @@ -1,2439 +1,2460 @@ -/*
- * File: indirect.c
- * Purpose: A GLX implementation that uses Windows OpenGL library
- *
- * Authors: Alexander Gottwald
- * Jon TURNEY
- *
- * Copyright (c) Jon TURNEY 2009
- * Copyright (c) Alexander Gottwald 2004
- *
- * Portions of this file are copied from GL/apple/indirect.c,
- * which contains the following copyright:
- *
- * Copyright (c) 2007, 2008, 2009 Apple Inc.
- * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved.
- * Copyright (c) 2002 Greg Parker. All Rights Reserved.
- *
- * Portions of this file are copied from Mesa's 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.
- */
-
-/*
- TODO:
- - hook up remaining unimplemented extensions
- - research what guarantees glXWaitX, glXWaitGL are supposed to offer, and implement then
- using GdiFlush and/or glFinish
- - pbuffer clobbering: we don't get async notification, but can we arrange to emit the
- event when we notice it's been clobbered? at the very least, check if it's been clobbered
- before using it?
- - are the __GLXConfig * we get handed back ones we are made (so we can extend the structure
- with privates?) Or are they created inside the GLX core as well?
- - snap winWindowInfoRec, it's just the same as a HWND now...
-*/
-
-/*
- MSDN clarifications:
-
- It says SetPixelFormat()'s PIXELFORMATDESCRIPTOR pointer argument has no effect
- except on metafiles, this seems to mean that as it's ok to supply NULL if the DC
- is not for a metafile
-
- wglMakeCurrent ignores the hdc if hglrc is NULL, so wglMakeCurrent(NULL, NULL)
- is used to make no context current
-
-*/
-
-#ifdef HAVE_XWIN_CONFIG_H
-#include <xwin-config.h>
-#endif
-
-#include "glwindows.h"
-#include <glx/glxserver.h>
-#include <glx/glxutil.h>
-#include <glx/extension_string.h>
-#include <GL/internal/glcore.h>
-#include <GL/glxtokens.h>
-
-#include <winpriv.h>
-#include <wgl_ext_api.h>
-#include "win.h"
-#include <winmsg.h>
-
-extern Bool g_fXdmcpEnabled;
-extern Bool g_fNativeGl;
-
-#define NUM_ELEMENTS(x) (sizeof(x)/ sizeof(x[1]))
-
-/* ---------------------------------------------------------------------- */
-/*
- * structure definitions
- */
-
-typedef struct __GLXWinContext __GLXWinContext;
-typedef struct __GLXWinDrawable __GLXWinDrawable;
-typedef struct __GLXWinScreen glxWinScreen;
-typedef struct __GLXWinConfig GLXWinConfig;
-
-struct __GLXWinContext {
- __GLXcontext base;
- HGLRC ctx; /* Windows GL Context */
- HDC hDC; /* Windows device context */
- HDC hreadDC; /* Windows device read context */
- __GLXWinContext *shareContext; /* Context with which we will share display lists and textures */
- HWND hwnd; /* For detecting when HWND has changed */
- HWND hreadwnd;
-};
-
-struct __GLXWinDrawable
-{
- __GLXdrawable base;
- __GLXWinContext *drawContext;
-
- /* If this drawable is GLX_DRAWABLE_PBUFFER */
- HPBUFFERARB hPbuffer;
-
- /* If this drawable is GLX_DRAWABLE_PIXMAP */
- HDC dibDC;
- HBITMAP hDIB;
- HBITMAP hOldDIB; /* original DIB for DC */
- void *pOldBits; /* original pBits for this drawable's pixmap */
-};
-
-struct __GLXWinScreen
-{
- __GLXscreen base;
-
- /* Supported GLX extensions */
- unsigned char glx_enable_bits[__GLX_EXT_BYTES];
-
- Bool has_WGL_ARB_multisample;
- Bool has_WGL_ARB_pixel_format;
- Bool has_WGL_ARB_pbuffer;
- Bool has_WGL_ARB_render_texture;
-
- /* wrapped screen functions */
- RealizeWindowProcPtr RealizeWindow;
- UnrealizeWindowProcPtr UnrealizeWindow;
- DestroyWindowProcPtr DestroyWindow;
- CopyWindowProcPtr CopyWindow;
- PositionWindowProcPtr PositionWindow;
-};
-
-struct __GLXWinConfig
-{
- __GLXconfig base;
- int pixelFormatIndex;
-};
-
-/* ---------------------------------------------------------------------- */
-/*
- * Various debug helpers
- */
-
-#ifdef _DEBUG
-void GLWIN_DEBUG_HWND(HWND hwnd)
-{
- if (glxWinDebugSettings.dumpHWND)
- {
- char buffer[1024];
- RECT Rect;
- HDC hDc=GetDC(hwnd);
-
- if (GetWindowText(hwnd, buffer, sizeof(buffer))==0) *buffer=0;
- GetWindowRect(hwnd,&Rect);
-
- GLWIN_DEBUG_MSG("Got HWND %p (hdc %p) for window '%s' (%d,%d,%d,%d)", hwnd, hDc, buffer, Rect.left, Rect.top, Rect.right, Rect.bottom);
- ReleaseDC(hwnd,hDc);
- }
-}
-
-void GLWIN_HDC_DEBUG_MSG(const char *Message, HDC hDc, HWND hwnd)
-{
- char buffer[1024];
- RECT Rect;
-
- if (GetWindowText(hwnd, buffer, sizeof(buffer))==0) *buffer=0;
- GetWindowRect(hwnd,&Rect);
-
- GLWIN_DEBUG_MSG("Got HDC %p (hwnd %p) for window '%s' (%d,%d,%d,%d)", hDc, hwnd, buffer, Rect.left, Rect.top, Rect.right, Rect.bottom);
-
-}
-
-glxWinDebugSettingsRec glxWinDebugSettings = { 0, 0, 0, 0, 0, 0};
-
-static void glxWinInitDebugSettings(void)
-{
- char *envptr;
-
- envptr = getenv("GLWIN_ENABLE_DEBUG");
- if (envptr != NULL)
- glxWinDebugSettings.enableDebug = (atoi(envptr) == 1);
-
- envptr = getenv("GLWIN_ENABLE_TRACE");
- if (envptr != NULL)
- glxWinDebugSettings.enableTrace = (atoi(envptr) == 1);
-
- envptr = getenv("GLWIN_DUMP_PFD");
- if (envptr != NULL)
- glxWinDebugSettings.dumpPFD = (atoi(envptr) == 1);
-
- envptr = getenv("GLWIN_DUMP_HWND");
- if (envptr != NULL)
- glxWinDebugSettings.dumpHWND = (atoi(envptr) == 1);
-
- envptr = getenv("GLWIN_DUMP_DC");
- if (envptr != NULL)
- glxWinDebugSettings.dumpDC = (atoi(envptr) == 1);
-
- envptr = getenv("GLWIN_ENABLE_GLCALL_TRACE");
- if (envptr != NULL)
- glxWinDebugSettings.enableGLcallTrace = (atoi(envptr) == 1);
-
- envptr = getenv("GLWIN_ENABLE_WGLCALL_TRACE");
- if (envptr != NULL)
- glxWinDebugSettings.enableWGLcallTrace = (atoi(envptr) == 1);
-
- envptr = getenv("GLWIN_DEBUG_ALL");
- if (envptr != NULL)
- {
- glxWinDebugSettings.enableDebug = 1;
- glxWinDebugSettings.enableTrace = 1;
- glxWinDebugSettings.dumpPFD = 1;
- glxWinDebugSettings.dumpHWND = 1;
- glxWinDebugSettings.dumpDC = 1;
- glxWinDebugSettings.enableGLcallTrace = 1;
- glxWinDebugSettings.enableWGLcallTrace = 1;
- }
-}
-#endif
-
-static
-const char *glxWinErrorMessage(void)
-{
- static char errorbuffer[1024];
- DWORD Error=GetLastError();
- int offset;
-
- sprintf(errorbuffer, "%p ",Error);
- offset=strlen(errorbuffer);
-
- if (!FormatMessage(
- FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
- NULL,
- Error,
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
- (LPTSTR) &errorbuffer[offset],
- sizeof(errorbuffer),
- NULL ))
- {
- snprintf(errorbuffer, sizeof(errorbuffer), "Unknown error in FormatMessage: %08x!", (unsigned)GetLastError());
- }
-
- if (errorbuffer[strlen(errorbuffer)-1] == '\n')
- errorbuffer[strlen(errorbuffer)-1] = 0;
-
- return errorbuffer;
-}
-
-static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd);
-
-#ifdef _DEBUG
-
-#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_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 const char *
-visual_class_name(int cls)
-{
- switch (cls) {
- case GLX_STATIC_COLOR:
- return "StaticColor";
- case GLX_PSEUDO_COLOR:
- return "PseudoColor";
- case GLX_STATIC_GRAY:
- return "StaticGray";
- case GLX_GRAY_SCALE:
- return "GrayScale";
- case GLX_TRUE_COLOR:
- return "TrueColor";
- case GLX_DIRECT_COLOR:
- return "DirectColor";
- default:
- return "-none-";
- }
-}
-
-static const char *
-swap_method_name(int mthd)
-{
- switch (mthd)
- {
- case GLX_SWAP_EXCHANGE_OML:
- return "xchg";
- case GLX_SWAP_COPY_OML:
- return "copy";
- case GLX_SWAP_UNDEFINED_OML:
- return " ";
- default:
- return "????";
- }
-}
-
-static void
-fbConfigsDump(unsigned int n, __GLXconfig *c)
-{
- ErrorF("%d fbConfigs\n", n);
- ErrorF("pxf vis fb render Ste aux accum MS drawable Group/\n");
- ErrorF("idx ID ID VisualType Depth Lvl RGB CI DB Swap reo R G B A Z S buf AR AG AB AA bufs num W P Pb Float Trans Caveat\n");
- ErrorF("-----------------------------------------------------------------------------------------------------------------------------\n");
-
- while (c != NULL)
- {
- unsigned int i = ((GLXWinConfig *)c)->pixelFormatIndex;
-
- ErrorF("%3d %2x %2x "
- "%-11s"
- " %3d %3d %s %s %s %s %s "
- "%2d %2d %2d %2d "
- "%2d %2d "
- "%2d "
- "%2d %2d %2d %2d"
- " %2d %2d"
- " %s %s %s "
- " %s "
- " %s "
- " %d %s"
- "\n",
- i, c->visualID, c->fbconfigID,
- visual_class_name(c->visualType),
- c->rgbBits ? c->rgbBits : c->indexBits,
- c->level,
- (c->renderType & GLX_RGBA_BIT) ? "y" : ".",
- (c->renderType & GLX_COLOR_INDEX_BIT) ? "y" : ".",
- c->doubleBufferMode ? "y" : ".",
- swap_method_name(c->swapMethod),
- c->stereoMode ? "y" : ".",
- c->redBits, c->greenBits, c->blueBits, c->alphaBits,
- c->depthBits, c->stencilBits,
- c->numAuxBuffers,
- c->accumRedBits, c->accumGreenBits, c->accumBlueBits, c->accumAlphaBits,
- c->sampleBuffers, c->samples,
- (c->drawableType & GLX_WINDOW_BIT) ? "y" : ".",
- (c->drawableType & GLX_PIXMAP_BIT) ? "y" : ".",
- (c->drawableType & GLX_PBUFFER_BIT) ? "y" : ".",
- ".",
- (c->transparentPixel != GLX_NONE_EXT) ? "y" : ".",
- c->visualSelectGroup, (c->visualRating == GLX_SLOW_VISUAL_EXT) ? "*" : " ");
-
- c = c->next;
- }
-}
-#endif
-
-/* ---------------------------------------------------------------------- */
-/*
- * Forward declarations
- */
-
-static __GLXscreen *glxWinScreenProbe(ScreenPtr pScreen);
-static __GLXcontext *glxWinCreateContext(__GLXscreen *screen,
- __GLXconfig *modes,
- __GLXcontext *baseShareContext);
-static __GLXdrawable *glxWinCreateDrawable(__GLXscreen *screen,
- DrawablePtr pDraw,
- int type,
- XID drawId,
- __GLXconfig *conf);
-
-static Bool glxWinRealizeWindow(WindowPtr pWin);
-static Bool glxWinUnrealizeWindow(WindowPtr pWin);
-static Bool glxWinDestroyWindow(WindowPtr pWin);
-static void glxWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc);
-static Bool glxWinPositionWindow(WindowPtr pWindow, int x, int y);
-
-static HDC glxWinMakeDC(__GLXWinContext *gc, __GLXWinDrawable *draw, HWND *hwnd);
-static void glxWinReleaseDC(HWND hwnd, HDC hdc, __GLXWinDrawable *draw);
-
-static void glxWinCreateConfigs(HDC dc, glxWinScreen *screen);
-static void glxWinCreateConfigsExt(HDC hdc, glxWinScreen *screen);
-static int fbConfigToPixelFormat(__GLXconfig *mode, PIXELFORMATDESCRIPTOR *pfdret, int drawableTypeOverride);
-static int fbConfigToPixelFormatIndex(HDC hdc, __GLXconfig *mode, int drawableTypeOverride, glxWinScreen *winScreen);
-
-/* ---------------------------------------------------------------------- */
-/*
- * The GLX provider
- */
-
-__GLXprovider __glXWGLProvider = {
- glxWinScreenProbe,
- "Win32 native WGL",
- NULL
-};
-
-void
-glxWinPushNativeProvider(void)
-{
- if (g_fNativeGl)
- GlxPushProvider(&__glXWGLProvider);
-}
-
-/* ---------------------------------------------------------------------- */
-/*
- * Screen functions
- */
-
-static void
-glxWinScreenDestroy(__GLXscreen *screen)
-{
- GLWIN_DEBUG_MSG("glxWinScreenDestroy(%p)", screen);
- __glXScreenDestroy(screen);
- xfree(screen);
-}
-
-static int
-glxWinScreenSwapInterval(__GLXdrawable *drawable, int interval)
-{
- BOOL ret = wglSwapIntervalEXTWrapper(interval);
- if (!ret)
- {
- ErrorF("wglSwapIntervalEXT interval %d failed:%s\n", interval, glxWinErrorMessage());
- }
- return ret;
-}
-
-static LRESULT CALLBACK GlxWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
-{
- if (uMsg== WM_NCHITTEST)
- {
- return HTTRANSPARENT;
- }
- else
- return DefWindowProc(hwnd, uMsg, wParam, lParam);
-}
-
-/*
- Report the extensions split and formatted to avoid overflowing a line
- */
-static void
-glxLogExtensions(const char *prefix, const char *extensions)
-{
- int length = 0;
- char *strl;
- char *str = xalloc(strlen(extensions) + 1);
-
- if (str == NULL)
- {
- ErrorF("glxLogExtensions: xalloc error\n");
- return;
- }
-
- str[strlen(extensions)] = '\0';
- strncpy (str, extensions, strlen(extensions));
-
- strl = strtok(str, " ");
- winDebug("%s%s", prefix, strl);
- length = strlen(prefix) + strlen(strl);
-
- while (1)
- {
- strl = strtok(NULL, " ");
- if (strl == NULL) break;
-
- if (length + strlen(strl) + 1 > 120)
- {
- winDebug("\n%s",prefix);
- length = strlen(prefix);
- }
- else
- {
- winDebug(" ");
- length++;
- }
-
- winDebug("%s", strl);
- length = length + strlen(strl);
- }
-
- winDebug("\n");
-
- xfree(str);
-}
-
-/* This is called by GlxExtensionInit() asking the GLX provider if it can handle the screen... */
-static __GLXscreen *
-glxWinScreenProbe(ScreenPtr pScreen)
-{
- glxWinScreen *screen;
- const char *gl_extensions;
- const char *wgl_extensions;
- HWND hwnd;
- HDC hdc;
- HGLRC hglrc;
-
- GLWIN_DEBUG_MSG("glxWinScreenProbe");
-
-#ifdef _DEBUG
- glxWinInitDebugSettings();
-#endif
-
- if (pScreen == NULL)
- return NULL;
-
- if (!winCheckScreenAiglxIsSupported(pScreen))
- {
- LogMessage(X_ERROR,"AIGLX: No native OpenGL in modes with a root window\n");
- return NULL;
- }
-
- screen = xcalloc(1, sizeof(glxWinScreen));
-
- if (NULL == screen)
- return NULL;
-
- /* Wrap RealizeWindow, UnrealizeWindow and CopyWindow on this screen */
- screen->RealizeWindow = pScreen->RealizeWindow;
- pScreen->RealizeWindow = glxWinRealizeWindow;
- screen->UnrealizeWindow = pScreen->UnrealizeWindow;
- pScreen->UnrealizeWindow = glxWinUnrealizeWindow;
- screen->CopyWindow = pScreen->CopyWindow;
- pScreen->CopyWindow = glxWinCopyWindow;
- screen->PositionWindow = pScreen->PositionWindow;
- pScreen->PositionWindow = glxWinPositionWindow;
- screen->DestroyWindow = pScreen->DestroyWindow;
- pScreen->DestroyWindow = glxWinDestroyWindow;
-
- /* Dump out some useful information about the native renderer */
-
- // create window class
- {
- static wATOM glTestWndClass = 0;
- if (glTestWndClass == 0)
- {
- WNDCLASSEX wc;
- glTestWndClass=1;
- wc.cbSize = sizeof(WNDCLASSEX);
- wc.style = CS_OWNDC ;
- wc.lpfnWndProc = GlxWindowProc;
- wc.cbClsExtra = 0;
- wc.cbWndExtra = 0;
- wc.hInstance = GetModuleHandle(NULL);
- wc.hIcon = 0;
- wc.hCursor = 0;
- wc.hbrBackground = 0;
- wc.lpszMenuName = NULL;
- wc.lpszClassName = WIN_GL_WINDOW_CLASS;
- wc.hIconSm = 0;
- RegisterClassEx (&wc);
- }
- }
-
- // create an invisible window for a scratch DC
- hwnd = CreateWindowExA(0,
- WIN_GL_WINDOW_CLASS,
- "XWin GL Renderer Capabilities Test Window",
- 0, 0, 0, 0, 0, NULL, NULL, GetModuleHandle(NULL), NULL);
- if (hwnd == NULL)
- LogMessage(X_ERROR,"AIGLX: Couldn't create a window for render capabilities testing\n");
-
- hdc = GetDC(hwnd);
-
- // we must set a pixel format before we can create a context, just use the first one...
- SetPixelFormat(hdc, 1, NULL);
- hglrc = wglCreateContext(hdc);
- wglMakeCurrent(hdc, hglrc);
-
- // initialize wgl extension proc pointers (don't call them before here...)
- // (but we need to have a current context for them to be resolvable)
- wglResolveExtensionProcs();
-
- winDebug("GL_VERSION: %s\n", glGetStringWrapperNonstatic(GL_VERSION));
- winDebug("GL_VENDOR: %s\n", glGetStringWrapperNonstatic(GL_VENDOR));
- winDebug("GL_RENDERER: %s\n", glGetStringWrapperNonstatic(GL_RENDERER));
- gl_extensions = (const char *)glGetStringWrapperNonstatic(GL_EXTENSIONS);
- glxLogExtensions("GL_EXTENSIONS: ", gl_extensions);
- wgl_extensions = wglGetExtensionsStringARBWrapper(hdc);
- if (!wgl_extensions) wgl_extensions = "";
- glxLogExtensions("WGL_EXTENSIONS: ", wgl_extensions);
-
- // Can you see the problem here? The extensions string is DC specific
- // Different DCs for windows on a multimonitor system driven by multiple cards
- // might have completely different capabilities. Of course, good luck getting
- // those screens to be accelerated in XP and earlier...
-
- {
- // testing facility to not use any WGL extensions
- char *envptr = getenv("GLWIN_NO_WGL_EXTENSIONS");
- if ((envptr != NULL) && (atoi(envptr) != 0))
- {
- ErrorF("GLWIN_NO_WGL_EXTENSIONS is set, ignoring WGL_EXTENSIONS\n");
- wgl_extensions = "";
- }
- }
-
- {
- Bool glx_sgi_make_current_read = FALSE;
-
- //
- // Based on the WGL extensions available, enable various GLX extensions
- // XXX: make this table-driven ?
- //
- memset(screen->glx_enable_bits, 0, __GLX_EXT_BYTES);
-
- __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_visual_info");
- __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_visual_rating");
- __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_import_context");
- __glXEnableExtension(screen->glx_enable_bits, "GLX_OML_swap_method");
- __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIX_fbconfig");
-
- if (strstr(wgl_extensions, "WGL_ARB_make_current_read"))
- {
- __glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_make_current_read");
- LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n");
- glx_sgi_make_current_read = TRUE;
- }
-
- if (strstr(gl_extensions, "GL_WIN_swap_hint"))
- {
- __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_copy_sub_buffer");
- LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n");
- }
-
- if (strstr(wgl_extensions, "WGL_EXT_swap_control"))
- {
- __glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_swap_control");
- __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_swap_control");
- LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n");
- }
-
-/* // Hmm? screen->texOffset */
-/* if (strstr(wgl_extensions, "WGL_ARB_render_texture")) */
-/* { */
-/* __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_texture_from_pixmap"); */
-/* LogMessage(X_INFO, "AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n"); */
-/* screen->has_WGL_ARB_render_texture = TRUE; */
-/* } */
-
- if (strstr(wgl_extensions, "WGL_ARB_pbuffer"))
- {
- __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIX_pbuffer");
- LogMessage(X_INFO, "AIGLX: enabled GLX_SGIX_pbuffer\n");
- screen->has_WGL_ARB_pbuffer = TRUE;
- }
-
- if (strstr(wgl_extensions, "WGL_ARB_multisample"))
- {
- __glXEnableExtension(screen->glx_enable_bits, "GLX_ARB_multisample");
- __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIS_multisample");
- LogMessage(X_INFO, "AIGLX: enabled GLX_ARB_multisample and GLX_SGIS_multisample\n");
- screen->has_WGL_ARB_multisample = TRUE;
- }
-
- screen->base.destroy = glxWinScreenDestroy;
- screen->base.createContext = glxWinCreateContext;
- screen->base.createDrawable = glxWinCreateDrawable;
- screen->base.swapInterval = glxWinScreenSwapInterval;
- screen->base.hyperpipeFuncs = NULL;
- screen->base.swapBarrierFuncs = NULL;
- screen->base.pScreen = pScreen;
-
- if (strstr(wgl_extensions, "WGL_ARB_pixel_format"))
- {
- glxWinCreateConfigsExt(hdc, screen);
- screen->has_WGL_ARB_pixel_format = TRUE;
- }
- else
- {
- glxWinCreateConfigs(hdc, screen);
- screen->has_WGL_ARB_pixel_format = FALSE;
- }
- // Initializes screen->base.fbconfigs and screen->base.numFBConfigs
-
- /* These will be set by __glXScreenInit */
- screen->base.visuals = NULL;
- screen->base.numVisuals = 0;
-
- __glXScreenInit(&screen->base, pScreen);
-
-#ifdef _DEBUG
- // dump out fbConfigs now fbConfigIds and visualIDs have been assigned
- fbConfigsDump(screen->base.numFBConfigs, screen->base.fbconfigs);
-#endif
-
- // Override the GL extensions string set by __glXScreenInit()
- screen->base.GLextensions = xstrdup(gl_extensions);
-
- // Generate the GLX extensions string (overrides that set by __glXScreenInit())
- {
- unsigned int buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL);
- if (buffer_size > 0)
- {
- if (screen->base.GLXextensions != NULL)
- {
- xfree(screen->base.GLXextensions);
- }
-
- screen->base.GLXextensions = xnfalloc(buffer_size);
- __glXGetExtensionString(screen->glx_enable_bits, screen->base.GLXextensions);
- }
- }
-
- //
- // Override the GLX version (__glXScreenInit() sets it to "1.2")
- // if we have all the needed extensionsto operate as a higher version
- //
- // SGIX_fbconfig && SGIX_pbuffer && SGI_make_current_read -> 1.3
- // ARB_multisample -> 1.4
- //
- if (screen->has_WGL_ARB_pbuffer && glx_sgi_make_current_read)
- {
- xfree(screen->base.GLXversion);
-
- if (screen->has_WGL_ARB_multisample)
- {
- screen->base.GLXversion = xstrdup("1.4");
- screen->base.GLXmajor = 1;
- screen->base.GLXminor = 4;
- }
- else
- {
- screen->base.GLXversion = xstrdup("1.3");
- screen->base.GLXmajor = 1;
- screen->base.GLXminor = 3;
- }
- LogMessage(X_INFO, "AIGLX: Set GLX version to %s\n", screen->base.GLXversion);
- }
- }
-
- wglMakeCurrent(NULL, NULL);
- wglDeleteContext(hglrc);
- ReleaseDC(hwnd, hdc);
- DestroyWindow(hwnd);
-
- return &screen->base;
-}
-
-/* ---------------------------------------------------------------------- */
-/*
- * Window functions
- */
-
-static Bool
-glxWinRealizeWindow(WindowPtr pWin)
-{
- Bool result;
- ScreenPtr pScreen = pWin->drawable.pScreen;
- glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen);
- winWindowPriv(pWin);
-
- GLWIN_DEBUG_MSG("glxWinRealizeWindow");
-
- /* Allow the window to be created (RootlessRealizeWindow is inside our wrap) */
- pScreen->RealizeWindow = screenPriv->RealizeWindow;
- result = pScreen->RealizeWindow(pWin);
- pScreen->RealizeWindow = glxWinRealizeWindow;
-
- // Check if ze need to move the window\n
- if (pWinPriv->GlCtxWnd && pWinPriv->hWnd)
- {
- ShowWindow(pWinPriv->hWnd,SW_SHOW);
- }
- return result;
-}
-
-
-static void
-glxWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
-{
- __GLXWinDrawable *pGlxDraw;
- ScreenPtr pScreen = pWindow->drawable.pScreen;
- glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen);
-
- GLWIN_TRACE_MSG("glxWinCopyWindow pWindow %p", pWindow);
-
- dixLookupResourceByType((pointer) &pGlxDraw, pWindow->drawable.id, __glXDrawableRes,
- NullClient, DixUnknownAccess);
-
-
- /*
- Discard any CopyWindow requests if a GL drawing context is pointing at the window
-
- For regions which are being drawn by GL, the shadow framebuffer doesn't have the
- correct bits, so we wish to avoid shadow framebuffer damage occuring, which will
- cause those incorrect bits to be transferred to the display....
- */
- if (pGlxDraw && pGlxDraw->drawContext)
- {
- GLWIN_DEBUG_MSG("glxWinCopyWindow: discarding");
- return;
- }
-
- GLWIN_DEBUG_MSG("glxWinCopyWindow - passing to hw layer");
-
- pScreen->CopyWindow = screenPriv->CopyWindow;
- pScreen->CopyWindow(pWindow, ptOldOrg, prgnSrc);
- pScreen->CopyWindow = glxWinCopyWindow;
-
-}
-
-static Bool
-glxWinPositionWindow(WindowPtr pWin, int x, int y)
-{
- Bool result;
- ScreenPtr pScreen = pWin->drawable.pScreen;
- glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen);
- winWindowPriv(pWin);
-
- pScreen->PositionWindow = screenPriv->PositionWindow;
- result = pScreen->PositionWindow(pWin, x, y);
- pScreen->PositionWindow = glxWinPositionWindow;
-
- if (pWinPriv->GlCtxWnd && pWinPriv->hWnd)
- {
- MoveWindow(pWinPriv->hWnd,
- pWin->drawable.x,
- pWin->drawable.y,
- pWin->drawable.width,
- pWin->drawable.height,
- FALSE);
- }
- return result;
-}
-
-
-static Bool
-glxWinUnrealizeWindow(WindowPtr pWin)
-{
- Bool result;
- ScreenPtr pScreen = pWin->drawable.pScreen;
- glxWinScreen *screenPriv = (glxWinScreen *)glxGetScreen(pScreen);
- winWindowPriv(pWin);
-
- GLWIN_DEBUG_MSG("glxWinUnrealizeWindow");
-
- pScreen->UnrealizeWindow = screenPriv->UnrealizeWindow;
- result = pScreen->UnrealizeWindow(pWin);
- pScreen->UnrealizeWindow = glxWinUnrealizeWindow;
-
- if (pWinPriv->GlCtxWnd && pWinPriv->hWnd)
- ShowWindow(pWinPriv->hWnd,SW_HIDE);
-
- return result;
-}
-
-static Bool
-glxWinDestroyWindow(WindowPtr pWin)
-{
- Bool result;
- ScreenPtr pScreen = pWin->drawable.pScreen;
- glxWinScreen *screenPriv = (glxWinScreen *)glxGetScreen(pScreen);
- winWindowPriv(pWin);
-
- GLWIN_DEBUG_MSG("glxWinDestroyWindow");
-
- if (pWinPriv->GlCtxWnd && pWinPriv->hWnd)
- {
- __GLXWinDrawable *pGlxDraw;
-
- dixLookupResourceByType((pointer) &pGlxDraw, pWin->drawable.id, __glXDrawableRes, NullClient, DixUnknownAccess);
-
- if (pGlxDraw && pGlxDraw->drawContext)
- {
- if (pGlxDraw->drawContext->hwnd!=pWinPriv->hWnd)
- ErrorF("Wrong assumption\n");
- glxWinReleaseDC(pGlxDraw->drawContext->hwnd, pGlxDraw->drawContext->hDC, pGlxDraw);
- pGlxDraw->drawContext->hDC=NULL;
- pGlxDraw->drawContext->hwnd=NULL;
- }
- DestroyWindow(pWinPriv->hWnd);
- pWinPriv->hWnd=NULL;
- pWinPriv->GlCtxWnd=0;
- }
-
- pScreen->DestroyWindow = screenPriv->DestroyWindow;
- result = pScreen->DestroyWindow(pWin);
- pScreen->DestroyWindow = glxWinDestroyWindow;
-
- return result;
-}
-
-/* ---------------------------------------------------------------------- */
-/*
- * Drawable functions
- */
-
-static GLboolean
-glxWinDrawableSwapBuffers(ClientPtr client, __GLXdrawable *base)
-{
- BOOL ret;
- __GLXWinDrawable *draw = (__GLXWinDrawable *)base;
-
- /* Swap buffers on the last active context for drawing on the drawable */
- if (draw->drawContext == NULL)
- {
- GLWIN_TRACE_MSG("glxWinSwapBuffers - no context for drawable");
- return GL_FALSE;
- }
-
- GLWIN_TRACE_MSG("glxWinSwapBuffers on drawable %p, last context %p (native ctx %p)", base, draw->drawContext, draw->drawContext->ctx);
-
- /*
- draw->drawContext->base.drawPriv will not be set if the context is not current anymore,
- but if it is, it should point to this drawable....
- */
- assert((draw->drawContext->base.drawPriv == NULL) || (draw->drawContext->base.drawPriv == base));
-
- ret = SwapBuffers(draw->drawContext->hDC);
-
- if (!ret)
- {
- ErrorF("wglSwapBuffers failed: %s\n", glxWinErrorMessage());
- return GL_FALSE;
- }
-
- return GL_TRUE;
-}
-
-static void
-glxWinDrawableCopySubBuffer(__GLXdrawable *drawable,
- int x, int y, int w, int h)
-{
- glAddSwapHintRectWINWrapperNonstatic(x, y, w, h);
- glxWinDrawableSwapBuffers(NULL, drawable);
-}
-
-static void
-glxWinDrawableDestroy(__GLXdrawable *base)
-{
- __GLXWinDrawable *glxPriv = (__GLXWinDrawable *)base;
-
- if (glxPriv->drawContext && (__glXLastContext == &((glxPriv->drawContext)->base)))
- {
- // if this context is current and has unflushed commands, say we have flushed them
- // (don't actually flush them, the window is going away anyhow, and an implict flush occurs
- // on the next context change)
- // (GLX core considers it an error when we try to select a new current context if the old one
- // has unflushed commands, but the window has disappeared..)
- __GLX_NOTE_FLUSHED_CMDS(__glXLastContext);
- __glXLastContext = NULL;
- }
-
- if (glxPriv->hPbuffer)
- if (!wglDestroyPbufferARBWrapper(glxPriv->hPbuffer))
- {
- ErrorF("wglDestroyPbufferARB failed: %s\n", glxWinErrorMessage());
- }
-
- if (glxPriv->dibDC)
- {
- // restore the default DIB
- SelectObject(glxPriv->dibDC, glxPriv->hOldDIB);
-
- if (!DeleteDC(glxPriv->dibDC))
- {
- ErrorF("DeleteDC failed: %s\n", glxWinErrorMessage());
- }
- }
-
- if (glxPriv->hDIB)
- {
- if (!DeleteObject(glxPriv->hDIB))
- {
- ErrorF("DeleteObject failed: %s\n", glxWinErrorMessage());
- }
-
- ((PixmapPtr)glxPriv->base.pDraw)->devPrivate.ptr = glxPriv->pOldBits;
- }
-
- GLWIN_DEBUG_MSG("glxWinDestroyDrawable");
- xfree(glxPriv);
-}
-
-static __GLXdrawable *
-glxWinCreateDrawable(__GLXscreen *screen,
- DrawablePtr pDraw,
- int type,
- XID drawId,
- __GLXconfig *conf)
-{
- __GLXWinDrawable *glxPriv;
-
- glxPriv = xcalloc(1,sizeof(*glxPriv));
-
- if (glxPriv == NULL)
- return NULL;
-
- if(!__glXDrawableInit(&glxPriv->base, screen, pDraw, type, drawId, conf)) {
- xfree(glxPriv);
- return NULL;
- }
-
- glxPriv->base.destroy = glxWinDrawableDestroy;
- glxPriv->base.swapBuffers = glxWinDrawableSwapBuffers;
- glxPriv->base.copySubBuffer = glxWinDrawableCopySubBuffer;
- // glxPriv->base.waitX what are these for?
- // glxPriv->base.waitGL
-
- GLWIN_DEBUG_MSG("glxWinCreateDrawable %p", glxPriv);
-
- return &glxPriv->base;
-}
-
-/* ---------------------------------------------------------------------- */
-/*
- * Texture functions
- */
-
-static
-int glxWinBindTexImage(__GLXcontext *baseContext,
- int buffer,
- __GLXdrawable *pixmap)
-{
- ErrorF("glxWinBindTexImage: not implemented\n");
- return FALSE;
-}
-
-static
-int glxWinReleaseTexImage(__GLXcontext *baseContext,
- int buffer,
- __GLXdrawable *pixmap)
-{
- ErrorF(" glxWinReleaseTexImage: not implemented\n");
- return FALSE;
-}
-
-/* ---------------------------------------------------------------------- */
-/*
- * Lazy update context implementation
- *
- * WGL contexts are created for a specific HDC, so we cannot create the WGL
- * context in glxWinCreateContext(), we must defer creation until the context
- * is actually used on a specifc drawable which is connected to a native window,
- * pbuffer or DIB
- *
- * The WGL context may be used on other, compatible HDCs, so we don't need to
- * recreate it for every new native window
- *
- * XXX: I wonder why we can't create the WGL context on the screen HDC ?
- * Basically we assume all HDCs are compatible at the moment: if they are not
- * we are in a muddle, there was some code in the old implementation to attempt
- * to transparently migrate a context to a new DC by copying state and sharing
- * lists with the old one...
- */
-
-static void
-glxWinSetPixelFormat(__GLXWinContext *gc, HDC hdc, int bppOverride, int drawableTypeOverride)
-{
- __GLXscreen *screen = gc->base.pGlxScreen;
- glxWinScreen *winScreen = (glxWinScreen *)screen;
-
- __GLXconfig *config = gc->base.config;
- GLXWinConfig *winConfig = (GLXWinConfig *)config;
-
- GLWIN_DEBUG_MSG("glxWinSetPixelFormat: pixelFormatIndex %d", winConfig->pixelFormatIndex);
-
- /*
- Normally, we can just use the the pixelFormatIndex corresponding
- to the fbconfig which has been specified by the client
- */
-
- if (!((bppOverride && (bppOverride != (config->redBits + config->greenBits + config->blueBits) ))
- || ((config->drawableType & drawableTypeOverride) == 0)))
- {
- if (!SetPixelFormat(hdc, winConfig->pixelFormatIndex, NULL))
- {
- ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage());
- return;
- }
-
- return;
- }
-
- /*
- However, in certain special cases this pixel format will be incompatible with the
- use we are going to put it to, so we need to re-evaluate the pixel format to use:
-
- 1) When PFD_DRAW_TO_BITMAP is set, ChoosePixelFormat() always returns a format with
- the cColorBits we asked for, so we need to ensure it matches the bpp of the bitmap
-
- 2) Applications may assume that visuals selected with glXChooseVisual() work with
- pixmap drawables (there is no attribute to explicitly query for pixmap drawable
- support as there is for glXChooseFBConfig())
- (it's arguable this is an error in the application, but we try to make it work)
-
- pixmap rendering is always slow for us, so we don't want to choose those visuals
- by default, but if the actual drawable type we're trying to select the context
- on (drawableTypeOverride) isn't supported by the selected fbConfig, reconsider
- and see if we can find a suitable one...
- */
- ErrorF("glxWinSetPixelFormat: having second thoughts: cColorbits %d, bppOveride %d; config->drawableType %d, drawableTypeOverride %d\n",
- (config->redBits + config->greenBits + config->blueBits), bppOverride, config->drawableType, drawableTypeOverride);
-
- if (!winScreen->has_WGL_ARB_pixel_format)
- {
- PIXELFORMATDESCRIPTOR pfd;
- int pixelFormat;
-
- /* convert fbConfig to PFD */
- if (fbConfigToPixelFormat(gc->base.config, &pfd, drawableTypeOverride))
- {
- ErrorF("glxWinSetPixelFormat: fbConfigToPixelFormat failed\n");
- return;
- }
-
-#ifdef _DEBUG
- if (glxWinDebugSettings.dumpPFD)
- pfdOut(&pfd);
-#endif
-
- if (bppOverride)
- {
- GLWIN_DEBUG_MSG("glxWinSetPixelFormat: Forcing bpp from %d to %d\n", pfd.cColorBits, bppOverride);
- pfd.cColorBits = bppOverride;
- }
-
- pixelFormat = ChoosePixelFormat(hdc, &pfd);
- if (pixelFormat == 0)
- {
- ErrorF("ChoosePixelFormat error: %s\n", glxWinErrorMessage());
- return;
- }
-
- GLWIN_DEBUG_MSG("ChoosePixelFormat: chose pixelFormatIndex %d", pixelFormat);
- ErrorF("ChoosePixelFormat: chose pixelFormatIndex %d (rather than %d as originally planned)\n", pixelFormat, winConfig->pixelFormatIndex);
-
- if (!SetPixelFormat(hdc, pixelFormat, &pfd))
- {
- ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage());
- return;
- }
- }
- else
- {
- int pixelFormat = fbConfigToPixelFormatIndex(hdc, gc->base.config, drawableTypeOverride, winScreen);
- if (pixelFormat == 0)
- {
- ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage());
- return;
- }
-
- GLWIN_DEBUG_MSG("wglChoosePixelFormat: chose pixelFormatIndex %d", pixelFormat);
- ErrorF("wglChoosePixelFormat: chose pixelFormatIndex %d (rather than %d as originally planned)\n", pixelFormat, winConfig->pixelFormatIndex);
-
- if (!SetPixelFormat(hdc, pixelFormat, NULL))
- {
- ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage());
- return;
- }
- }
-}
-
-static HDC
-glxWinMakeDC(__GLXWinContext *gc, __GLXWinDrawable *draw, HWND *hwnd)
-{
- HDC hdc = NULL;
- *hwnd = NULL;
-
- if (draw == NULL)
- {
- GLWIN_TRACE_MSG("No drawable for context %p (native ctx %p)", gc, gc->ctx);
- return NULL;
- }
-
- switch (draw->base.type)
- {
- case GLX_DRAWABLE_WINDOW:
- {
- winWindowInfoRec winInfo;
- WindowPtr pWin;
-
- pWin = (WindowPtr) draw->base.pDraw;
- if (pWin == NULL)
- {
- GLWIN_TRACE_MSG("for drawable %p, no WindowPtr", pWin);
- return NULL;
- }
-
- winGetWindowInfo(pWin, &winInfo);
- *hwnd = winInfo.hwnd;
-
- if (winInfo.hwnd == NULL)
- {
- ErrorF("No HWND error: %s\n", glxWinErrorMessage());
- return NULL;
- }
-
- hdc = GetDC(winInfo.hwnd);
-
- if (hdc == NULL)
- ErrorF("GetDC error: %s: hwnd %x, gc %p, gc->ctx %p ,gc->hwnd %p\n", glxWinErrorMessage(), winInfo.hwnd, gc, gc->ctx, gc->hwnd);
-
- if (gc->hDC)
- {
- glxWinReleaseDC(gc->hwnd, gc->hDC, draw);
- gc->hDC=NULL;
- }
-#ifdef _DEBUG
- if (glxWinDebugSettings.enableTrace)
- GLWIN_DEBUG_HWND(winInfo.hwnd);
-
- GLWIN_TRACE_MSG("for context %p (native ctx %p), hWnd changed from %p to %p", gc, gc->ctx, gc->hwnd, winInfo.hwnd);
-#endif
- gc->hwnd = winInfo.hwnd;
-
- /* Check if we need to set the pixelformat */
- {
- winWindowPriv(pWin);
- if (!pWinPriv->PixelFormatSet)
- {
- pWinPriv->PixelFormatSet=TRUE;
- /* We must select a pixelformat, but SetPixelFormat can only be called once for a window... */
- glxWinSetPixelFormat(gc, hdc, 0, GLX_WINDOW_BIT);
- }
- }
- }
- break;
-
- case GLX_DRAWABLE_PBUFFER:
- {
- hdc = wglGetPbufferDCARBWrapper(draw->hPbuffer);
-
- if (hdc == NULL)
- ErrorF("GetDC (pbuffer) error: %s\n", glxWinErrorMessage());
- }
- break;
-
- case GLX_DRAWABLE_PIXMAP:
- {
- hdc = draw->dibDC;
-#ifdef _DEBUG
- if (glxWinDebugSettings.dumpDC)
- GLWIN_DEBUG_MSG("Got PIXMAP HDC %p for window %p", hdc, *hwnd);
-#endif
- }
- break;
-
- default:
- {
- ErrorF("glxWinMakeDC: tried to makeDC for unhandled drawable type %d\n", draw->base.type);
- }
- }
-
-#ifdef _DEBUG
- if (glxWinDebugSettings.dumpDC)
- GLWIN_HDC_DEBUG_MSG("Got HDC %p for window %p", hdc, *hwnd);
-#endif
-
- return hdc;
-}
-
-static void
-glxWinReleaseDC(HWND hwnd, HDC hdc,__GLXWinDrawable *draw)
-{
- switch (draw->base.type)
- {
- case GLX_DRAWABLE_WINDOW:
- {
- ReleaseDC(hwnd, hdc);
- }
- break;
-
- case GLX_DRAWABLE_PBUFFER:
- {
- if (!wglReleasePbufferDCARBWrapper(draw->hPbuffer, hdc))
- {
- ErrorF("wglReleasePbufferDCARB error: %s\n", glxWinErrorMessage());
- }
- }
- break;
-
- case GLX_DRAWABLE_PIXMAP:
- {
- // don't release DC, the memory DC lives as long as the bitmap
-
- // We must ensure that all GDI drawing into the bitmap has completed
- // in case we subsequently access the bits from it
- GdiFlush();
- }
- break;
-
- default:
- {
- ErrorF("glxWinReleaseDC: tried to releaseDC for unhandled drawable type %d\n", draw->base.type);
- }
- }
-}
-
-static void
-glxWinDeferredCreateContext(__GLXWinContext *gc, __GLXWinDrawable *draw)
-{
- HWND hwnd;
- GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attach context %p to drawable %p", gc, draw);
-
- switch (draw->base.type)
- {
- case GLX_DRAWABLE_WINDOW:
- {
- winWindowInfoRec winInfo;
- WindowPtr pWin = (WindowPtr) draw->base.pDraw;
-
- if (!(gc->base.config->drawableType & GLX_WINDOW_BIT))
- {
- ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_WINDOW_BIT to a GLX_DRAWABLE_WINDOW drawable\n");
- }
-
- if (pWin == NULL)
- {
- GLWIN_DEBUG_MSG("Deferring until X window is created");
- return;
- }
-
- GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: pWin %p", pWin);
-
- winGetWindowInfo(pWin, &winInfo);
- if (winInfo.hwnd == NULL)
- {
- GLWIN_DEBUG_MSG("Deferring until native window is created");
- return;
- }
- }
- break;
-
- case GLX_DRAWABLE_PBUFFER:
- {
- if (draw->hPbuffer == NULL)
- {
- __GLXscreen *screen;
- glxWinScreen *winScreen;
- int pixelFormat;
- // XXX: which DC are supposed to use???
- HDC screenDC = GetDC(NULL);
-
- if (!(gc->base.config->drawableType & GLX_PBUFFER_BIT))
- {
- ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_PBUFFER_BIT to a GLX_DRAWABLE_PBUFFER drawable\n");
- }
-
- screen = gc->base.pGlxScreen;
- winScreen = (glxWinScreen *)screen;
-
- pixelFormat = fbConfigToPixelFormatIndex(screenDC, gc->base.config, GLX_DRAWABLE_PBUFFER, winScreen);
- if (pixelFormat == 0)
- {
- ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage());
- return;
- }
-
- draw->hPbuffer = wglCreatePbufferARBWrapper(screenDC, pixelFormat, draw->base.pDraw->width, draw->base.pDraw->height, NULL);
- ReleaseDC(NULL, screenDC);
-
- if (draw->hPbuffer == NULL)
- {
- ErrorF("wglCreatePbufferARBWrapper error: %s\n", glxWinErrorMessage());
- return;
- }
-
- GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: pBuffer %p created for drawable %p", draw->hPbuffer, draw);
- }
- }
- break;
-
- case GLX_DRAWABLE_PIXMAP:
- {
- if (draw->dibDC == NULL)
- {
- BITMAPINFOHEADER bmpHeader;
- void *pBits;
-
- memset (&bmpHeader, 0, sizeof(BITMAPINFOHEADER));
- bmpHeader.biSize = sizeof(BITMAPINFOHEADER);
- bmpHeader.biWidth = draw->base.pDraw->width;
- bmpHeader.biHeight = draw->base.pDraw->height;
- bmpHeader.biPlanes = 1;
- bmpHeader.biBitCount = draw->base.pDraw->bitsPerPixel;
- bmpHeader.biCompression = BI_RGB;
-
- if (!(gc->base.config->drawableType & GLX_PIXMAP_BIT))
- {
- ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_PIXMAP_BIT to a GLX_DRAWABLE_PIXMAP drawable\n");
- }
-
- draw->dibDC = CreateCompatibleDC(NULL);
- if (draw->dibDC == NULL)
- {
- ErrorF("CreateCompatibleDC error: %s\n", glxWinErrorMessage());
- return;
- }
-
- draw->hDIB = CreateDIBSection(draw->dibDC, (BITMAPINFO *)&bmpHeader, DIB_RGB_COLORS, &pBits, 0, 0);
- if (draw->dibDC == NULL)
- {
- ErrorF("CreateDIBSection error: %s\n", glxWinErrorMessage());
- return;
- }
-
- // XXX: CreateDIBSection insists on allocating the bitmap memory for us, so we're going to
- // need some jiggery pokery to point the underlying X Drawable's bitmap at the same set of bits
- // so that they can be read with XGetImage as well as glReadPixels, assuming the formats are
- // even compatible ...
- draw->pOldBits = ((PixmapPtr)draw->base.pDraw)->devPrivate.ptr;
- ((PixmapPtr)draw->base.pDraw)->devPrivate.ptr = pBits;
-
- // Select the DIB into the DC
- draw->hOldDIB = SelectObject(draw->dibDC, draw->hDIB);
- if (!draw->hOldDIB)
- {
- ErrorF("SelectObject error: %s\n", glxWinErrorMessage());
- }
-
- // Set the pixel format of the bitmap
- glxWinSetPixelFormat(gc, draw->dibDC, draw->base.pDraw->bitsPerPixel, GLX_PIXMAP_BIT);
-
- GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: DIB bitmap %p created for drawable %p", draw->hDIB, draw);
- }
- }
- break;
-
- default:
- {
- ErrorF("glxWinDeferredCreateContext: tried to attach unhandled drawable type %d\n", draw->base.type);
- return;
- }
- }
-
- gc->hDC = glxWinMakeDC(gc, draw, &hwnd);
- gc->ctx = wglCreateContext(gc->hDC);
-
- if (gc->ctx == NULL)
- {
- glxWinReleaseDC(hwnd, gc->hDC, draw);
- gc->hDC=0;
-
- ErrorF("wglCreateContext error: %s\n", glxWinErrorMessage());
- return;
- }
-
- GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attached context %p to native context %p drawable %p", gc, gc->ctx, draw);
-
- // if the native context was created successfully, shareLists if needed
- if (gc->ctx && gc->shareContext)
- {
- GLWIN_DEBUG_MSG("glxWinCreateContextReal shareLists with context %p (native ctx %p)", gc->shareContext, gc->shareContext->ctx);
-
- if (!wglShareLists(gc->shareContext->ctx, gc->ctx))
- {
- ErrorF("wglShareLists error: %s\n", glxWinErrorMessage());
- }
- }
-}
-
-/* ---------------------------------------------------------------------- */
-/*
- * Context functions
- */
-
-
-/* Context manipulation routines should return TRUE on success, FALSE on failure */
-static int
-glxWinContextMakeCurrent(__GLXcontext *base)
-{
- __GLXWinContext *gc = (__GLXWinContext *)base;
- BOOL ret;
- __GLXWinDrawable *drawPriv;
-
-#ifdef _DEBUG
- GLWIN_TRACE_MSG("glxWinContextMakeCurrent context %p (native ctx %p)", gc, gc->ctx);
- glWinCallDelta();
-#endif
-
- /* Keep a note of the last active context in the drawable */
- drawPriv = (__GLXWinDrawable *)gc->base.drawPriv;
- drawPriv->drawContext = gc;
-
- if (gc->ctx == NULL)
- {
- glxWinDeferredCreateContext(gc, drawPriv);
- }
-
- if (gc->ctx == NULL)
- {
- ErrorF("glxWinContextMakeCurrent: Native context is NULL\n");
- return FALSE;
- }
-
- if ((gc->base.readPriv != NULL) && (gc->base.readPriv != gc->base.drawPriv))
- {
- // XXX: should only occur with WGL_ARB_make_current_read
- /*
- If there is a separate read drawable, create a separate read DC, and
- use the wglMakeContextCurrent extension to make the context current drawing
- to one DC and reading from the other
- */
- gc->hreadDC = glxWinMakeDC(gc, (__GLXWinDrawable *)gc->base.readPriv, &gc->hreadwnd);
- if (gc->hreadDC == NULL)
- {
- ErrorF("glxWinMakeDC failed for readDC\n");
- return FALSE;
- }
-
- ret = wglMakeContextCurrentARBWrapper(gc->hDC, gc->hreadDC, gc->ctx);
- if (!ret)
- {
- ErrorF("wglMakeContextCurrentARBWrapper error: %s\n", glxWinErrorMessage());
- }
- }
- else
- {
- /* Otherwise, just use wglMakeCurrent */
- if (!gc->hDC)
- {
- /* It probably has been release by loseCurrent, so create it again */
- gc->hDC = glxWinMakeDC(gc, drawPriv, &gc->hwnd);
- }
- ret = wglMakeCurrent(gc->hDC, gc->ctx);
- if (!ret)
- {
- DWORD ErrorCode=GetLastError();
- ErrorF("wglMakeCurrent error: %x dc %p ctx %p\n", ErrorCode,gc->hDC,gc->ctx);
- if (!ErrorCode)
- {
- ErrorF("Error code was 0, assuming no error.\n");
- ret=TRUE;
- }
- }
- }
-
- // apparently make current could fail if the context is current in a different thread,
- // but that shouldn't be able to happen in the current server...
-
- return ret;
-}
-
-static int
-glxWinContextLoseCurrent(__GLXcontext *base)
-{
- BOOL ret=TRUE;
- __GLXWinContext *gc = (__GLXWinContext *)base;
-
-#ifdef _DEBUG
- GLWIN_TRACE_MSG("glxWinContextLoseCurrent context %p (native ctx %p)", gc, gc->ctx);
- glWinCallDelta();
-#endif
-
-
- if (wglGetCurrentContext()==gc->ctx)
- {
- /* Only do this when we are sure we are currently the active, otherwise we are deactivating the wrong one (this is happening!!!) */
- ret = wglMakeCurrent(NULL, NULL);
- if (!ret)
- ErrorF("glxWinContextLoseCurrent error: %s\n", glxWinErrorMessage());
- }
- else
- {
- return FALSE;
- }
-
- /* Since drawPriv is going to be set to zero in the context, we have to release the DC to */
- if (gc->hDC && gc->base.drawPriv) glxWinReleaseDC(gc->hwnd, gc->hDC, (__GLXWinDrawable *)gc->base.drawPriv);
- if (gc->hreadDC && gc->base.readPriv) glxWinReleaseDC(gc->hreadwnd, gc->hreadDC, (__GLXWinDrawable *)gc->base.readPriv);
- gc->hDC=NULL;
- gc->hreadDC=NULL;
-
- base->isCurrent=FALSE; /* It looks like glx is not doing this */
-
- return ret;
-}
-
-static int
-glxWinContextCopy(__GLXcontext *dst_base, __GLXcontext *src_base, unsigned long mask)
-{
- __GLXWinContext *dst = (__GLXWinContext *)dst_base;
- __GLXWinContext *src = (__GLXWinContext *)src_base;
- BOOL ret;
-
- GLWIN_DEBUG_MSG("glxWinContextCopy");
-
- ret = wglCopyContext(src->ctx, dst->ctx, mask);
- if (!ret)
- {
- ErrorF("wglCopyContext error: %s\n", glxWinErrorMessage());
- }
-
- return ret;
-}
-
-static int
-glxWinContextForceCurrent(__GLXcontext *base)
-{
- /* wglMakeCurrent always flushes the previous context, so this is equivalent to glxWinContextMakeCurrent */
- return glxWinContextMakeCurrent(base);
-}
-
-static void
-glxWinContextDestroy(__GLXcontext *base)
-{
- __GLXWinContext *gc = (__GLXWinContext *)base;
-
- if (gc != NULL)
- {
- GLWIN_DEBUG_MSG("GLXcontext %p destroyed (native ctx %p)", base, gc->ctx);
-
- if (gc->ctx)
- {
- BOOL ret;
- /* It's bad style to delete the context while it's still current */
- if (wglGetCurrentContext() == gc->ctx)
- {
- wglMakeCurrent(NULL, NULL);
- }
-
- ret = wglDeleteContext(gc->ctx);
- if (!ret)
- ErrorF("wglDeleteContext error: %s\n", glxWinErrorMessage());
- if (gc->base.drawPriv && gc->hDC) glxWinReleaseDC(gc->hwnd, gc->hDC, (__GLXWinDrawable *)gc->base.drawPriv);
- if (gc->base.readPriv && gc->hreadDC) glxWinReleaseDC(gc->hreadwnd, gc->hreadDC, (__GLXWinDrawable *)gc->base.readPriv);
- gc->hDC=NULL;
- gc->hreadDC=NULL;
- gc->ctx = NULL;
- }
-
- xfree(gc);
- }
-}
-
-static __GLXcontext *
-glxWinCreateContext(__GLXscreen *screen,
- __GLXconfig *modes,
- __GLXcontext *baseShareContext)
-{
- __GLXWinContext *context;
- __GLXWinContext *shareContext = (__GLXWinContext *)baseShareContext;
-
- static __GLXtextureFromPixmap glxWinTextureFromPixmap =
- {
- glxWinBindTexImage,
- glxWinReleaseTexImage
- };
-
- context = (__GLXWinContext *)xcalloc(1, sizeof(__GLXWinContext));
-
- if (!context)
- return NULL;
-
- memset(context, 0, sizeof *context);
- context->base.destroy = glxWinContextDestroy;
- context->base.makeCurrent = glxWinContextMakeCurrent;
- context->base.loseCurrent = glxWinContextLoseCurrent;
- context->base.copy = glxWinContextCopy;
- context->base.forceCurrent = glxWinContextForceCurrent;
- context->base.textureFromPixmap = &glxWinTextureFromPixmap;
- context->base.config = modes;
- context->base.pGlxScreen = screen;
-
- // actual native GL context creation is deferred until attach()
- //context->ctx = NULL; already done with memset
- context->shareContext = shareContext;
-
- glWinSetupDispatchTable();
-
- GLWIN_DEBUG_MSG("GLXcontext %p created", context);
-
- return &(context->base);
-}
-
-/* ---------------------------------------------------------------------- */
-/*
- * Utility functions
- */
-
-static int
-fbConfigToPixelFormat(__GLXconfig *mode, PIXELFORMATDESCRIPTOR *pfdret, int drawableTypeOverride)
-{
- PIXELFORMATDESCRIPTOR pfd = {
- sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */
- 1, /* version number */
- 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 */
- 32, /* 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 */
- };
-
- if ((mode->drawableType | drawableTypeOverride) & GLX_WINDOW_BIT)
- pfd.dwFlags |= PFD_DRAW_TO_WINDOW; /* support window */
-
- if ((mode->drawableType | drawableTypeOverride) & GLX_PIXMAP_BIT)
- pfd.dwFlags |= (PFD_DRAW_TO_BITMAP | PFD_SUPPORT_GDI); /* supports software rendering to bitmap */
-
- if (mode->stereoMode) {
- pfd.dwFlags |= PFD_STEREO;
- }
- if (mode->doubleBufferMode) {
- pfd.dwFlags |= PFD_DOUBLEBUFFER;
- }
-
- pfd.iPixelType = PFD_TYPE_RGBA;
- pfd.cColorBits = mode->redBits + mode->greenBits + mode->blueBits;
- pfd.cRedBits = mode->redBits;
- pfd.cRedShift = 0; /* FIXME */
- pfd.cGreenBits = mode->greenBits;
- pfd.cGreenShift = 0; /* FIXME */
- pfd.cBlueBits = mode->blueBits;
- pfd.cBlueShift = 0; /* FIXME */
- pfd.cAlphaBits = mode->alphaBits;
- pfd.cAlphaShift = 0; /* FIXME */
-
- pfd.cAccumBits = mode->accumRedBits + mode->accumGreenBits + mode->accumBlueBits + mode->accumAlphaBits;
- pfd.cAccumRedBits = mode->accumRedBits;
- pfd.cAccumGreenBits = mode->accumGreenBits;
- pfd.cAccumBlueBits = mode->accumBlueBits;
- pfd.cAccumAlphaBits = mode->accumAlphaBits;
-
- pfd.cDepthBits = mode->depthBits;
- pfd.cStencilBits = mode->stencilBits;
- pfd.cAuxBuffers = mode->numAuxBuffers;
-
- /* mode->level ? */
- /* mode->pixmapMode ? */
-
- *pfdret = pfd;
-
- return 0;
-}
-
-#define SET_ATTR_VALUE(attr, value) { attribList[i++] = attr; attribList[i++] = value; assert(i < NUM_ELEMENTS(attribList)); }
-
-static int
-fbConfigToPixelFormatIndex(HDC hdc, __GLXconfig *mode, int drawableTypeOverride, glxWinScreen *winScreen)
-{
- UINT numFormats;
- unsigned int i = 0;
-
- /* convert fbConfig to attr-value list */
- int attribList[60];
-
- SET_ATTR_VALUE(WGL_SUPPORT_OPENGL_ARB, TRUE);
- SET_ATTR_VALUE(WGL_PIXEL_TYPE_ARB, (mode->visualType == GLX_TRUE_COLOR) ? WGL_TYPE_RGBA_ARB : WGL_TYPE_COLORINDEX_ARB);
- SET_ATTR_VALUE(WGL_COLOR_BITS_ARB, (mode->visualType == GLX_TRUE_COLOR) ? mode->rgbBits : mode->indexBits);
- SET_ATTR_VALUE(WGL_RED_BITS_ARB, mode->redBits);
- SET_ATTR_VALUE(WGL_GREEN_BITS_ARB, mode->greenBits);
- SET_ATTR_VALUE(WGL_BLUE_BITS_ARB, mode->blueBits);
- SET_ATTR_VALUE(WGL_ALPHA_BITS_ARB, mode->alphaBits);
- SET_ATTR_VALUE(WGL_ACCUM_RED_BITS_ARB, mode->accumRedBits);
- SET_ATTR_VALUE(WGL_ACCUM_GREEN_BITS_ARB, mode->accumGreenBits);
- SET_ATTR_VALUE(WGL_ACCUM_BLUE_BITS_ARB, mode->accumBlueBits);
- SET_ATTR_VALUE(WGL_ACCUM_ALPHA_BITS_ARB, mode->accumAlphaBits);
- SET_ATTR_VALUE(WGL_DEPTH_BITS_ARB, mode->depthBits);
- SET_ATTR_VALUE(WGL_STENCIL_BITS_ARB, mode->stencilBits);
- SET_ATTR_VALUE(WGL_AUX_BUFFERS_ARB, mode->numAuxBuffers);
-
- if (mode->doubleBufferMode)
- SET_ATTR_VALUE(WGL_DOUBLE_BUFFER_ARB, TRUE);
-
- if (mode->stereoMode)
- SET_ATTR_VALUE(WGL_STEREO_ARB, TRUE);
-
- // Some attributes are only added to the list if the value requested is not 'don't care', as exactly matching that is daft..
- if (mode->swapMethod == GLX_SWAP_EXCHANGE_OML)
- SET_ATTR_VALUE(WGL_SWAP_METHOD_ARB, WGL_SWAP_EXCHANGE_ARB);
-
- if (mode->swapMethod == GLX_SWAP_COPY_OML)
- SET_ATTR_VALUE(WGL_SWAP_COPY_ARB, TRUE);
-
- // XXX: this should probably be the other way around, but that messes up drawableTypeOverride
- if (mode->visualRating == GLX_SLOW_VISUAL_EXT)
- SET_ATTR_VALUE(WGL_ACCELERATION_ARB, WGL_NO_ACCELERATION_ARB);
-
- // must support all the drawable types the mode supports
- if ((mode->drawableType | drawableTypeOverride) & GLX_WINDOW_BIT)
- SET_ATTR_VALUE(WGL_DRAW_TO_WINDOW_ARB,TRUE);
-
- // XXX: this is a horrible hacky heuristic, in fact this whole drawableTypeOverride thing is a bad idea
- // try to avoid asking for formats which don't exist (by not asking for all when adjusting the config to include the drawableTypeOverride)
- if (drawableTypeOverride == GLX_WINDOW_BIT)
- {
- if (mode->drawableType & GLX_PIXMAP_BIT)
- SET_ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, TRUE);
-
- if (mode->drawableType & GLX_PBUFFER_BIT)
- if (winScreen->has_WGL_ARB_pbuffer)
- SET_ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, TRUE);
- }
- else
- {
- if (drawableTypeOverride & GLX_PIXMAP_BIT)
- SET_ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, TRUE);
-
- if (drawableTypeOverride & GLX_PBUFFER_BIT)
- if (winScreen->has_WGL_ARB_pbuffer)
- SET_ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, TRUE);
- }
-
- SET_ATTR_VALUE(0, 0); // terminator
-
- /* choose the first match */
- {
- int pixelFormatIndex;
-
- if (!wglChoosePixelFormatARBWrapper(hdc, attribList, NULL, 1, &pixelFormatIndex, &numFormats))
- {
- ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage());
- }
- else
- {
- if (numFormats > 0)
- {
- GLWIN_DEBUG_MSG("wglChoosePixelFormat: chose pixelFormatIndex %d)", pixelFormatIndex);
- return pixelFormatIndex;
- }
- else
- ErrorF("wglChoosePixelFormat couldn't decide\n");
- }
- }
-
- return 0;
-}
-
-/* ---------------------------------------------------------------------- */
-
-#define BITS_AND_SHIFT_TO_MASK(bits,mask) (((1<<(bits))-1) << (mask))
-
-//
-// Create the GLXconfigs using DescribePixelFormat()
-//
-static void
-glxWinCreateConfigs(HDC hdc, glxWinScreen *screen)
-{
- GLXWinConfig *c, *result, *prev = NULL;
- int numConfigs = 0;
- int i = 0;
- int n = 0;
- PIXELFORMATDESCRIPTOR pfd;
-
- GLWIN_DEBUG_MSG("glxWinCreateConfigs");
-
- screen->base.numFBConfigs = 0;
- screen->base.fbconfigs = NULL;
-
- // get the number of pixelformats
- numConfigs = DescribePixelFormat(hdc, 1, sizeof(PIXELFORMATDESCRIPTOR), NULL);
- GLWIN_DEBUG_MSG("DescribePixelFormat says %d possible pixel formats", numConfigs);
-
- /* alloc */
- result = xalloc(sizeof(GLXWinConfig) * numConfigs);
-
- if (NULL == result)
- {
- return;
- }
-
- memset(result, 0, sizeof(GLXWinConfig) * numConfigs);
- n = 0;
-
- /* fill in configs */
- for (i = 0; i < numConfigs; i++)
- {
- int rc;
-
- c = &(result[i]);
- c->base.next = NULL;
- c->pixelFormatIndex = i+1;
-
- rc = DescribePixelFormat(hdc, i+1, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
-
- if (!rc)
- {
- ErrorF("DescribePixelFormat failed for index %d, error %s\n", i+1, glxWinErrorMessage());
- break;
- }
-
-#ifdef _DEBUG
- if (glxWinDebugSettings.dumpPFD)
- pfdOut(&pfd);
-#endif
-
- if (!(pfd.dwFlags & (PFD_DRAW_TO_WINDOW | PFD_DRAW_TO_BITMAP)) || !(pfd.dwFlags & PFD_SUPPORT_OPENGL))
- {
- GLWIN_DEBUG_MSG("pixelFormat %d has unsuitable flags 0x%08lx, skipping", i+1, pfd.dwFlags);
- continue;
- }
-
- c->base.doubleBufferMode = (pfd.dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE;
- c->base.stereoMode = (pfd.dwFlags & PFD_STEREO) ? GL_TRUE : GL_FALSE;
-
- c->base.redBits = pfd.cRedBits;
- c->base.greenBits = pfd.cGreenBits;
- c->base.blueBits = pfd.cBlueBits;
- c->base.alphaBits = pfd.cAlphaBits;
-
- c->base.redMask = BITS_AND_SHIFT_TO_MASK(pfd.cRedBits, pfd.cRedShift);
- c->base.greenMask = BITS_AND_SHIFT_TO_MASK(pfd.cGreenBits, pfd.cGreenShift);
- c->base.blueMask = BITS_AND_SHIFT_TO_MASK(pfd.cBlueBits, pfd.cBlueShift);
- c->base.alphaMask = BITS_AND_SHIFT_TO_MASK(pfd.cAlphaBits, pfd.cAlphaShift);
-
- c->base.rgbBits = pfd.cColorBits;
-
- if (pfd.iPixelType == PFD_TYPE_COLORINDEX)
- {
- c->base.indexBits = pfd.cColorBits;
- }
- else
- {
- c->base.indexBits = 0;
- }
-
- c->base.accumRedBits = pfd.cAccumRedBits;
- c->base.accumGreenBits = pfd.cAccumGreenBits;
- c->base.accumBlueBits = pfd.cAccumBlueBits;
- c->base.accumAlphaBits = pfd.cAccumAlphaBits;
- // pfd.cAccumBits;
-
- c->base.depthBits = pfd.cDepthBits;
- c->base.stencilBits = pfd.cStencilBits;
- c->base.numAuxBuffers = pfd.cAuxBuffers;
-
- // pfd.iLayerType; // ignored
- c->base.level = 0;
- // pfd.dwLayerMask; // ignored
- // pfd.dwDamageMask; // ignored
-
- c->base.pixmapMode = 0;
- c->base.visualID = -1; // will be set by __glXScreenInit()
-
- /* EXT_visual_rating / GLX 1.2 */
- if (pfd.dwFlags & PFD_GENERIC_FORMAT)
- {
- c->base.visualRating = GLX_SLOW_VISUAL_EXT;
- }
- else
- {
- // PFD_GENERIC_ACCELERATED is not considered, so this may be MCD or ICD acclerated...
- c->base.visualRating = GLX_NONE_EXT;
- }
-
- /* EXT_visual_info / GLX 1.2 */
- if (pfd.iPixelType == PFD_TYPE_COLORINDEX)
- {
- c->base.visualType = GLX_STATIC_COLOR;
- }
- else
- {
- c->base.visualType = GLX_TRUE_COLOR;
- }
-
- // pfd.dwVisibleMask; ???
- c->base.transparentPixel = GLX_NONE;
- c->base.transparentRed = GLX_NONE;
- c->base.transparentGreen = GLX_NONE;
- c->base.transparentBlue = GLX_NONE;
- c->base.transparentAlpha = GLX_NONE;
- c->base.transparentIndex = GLX_NONE;
-
- /* ARB_multisample / SGIS_multisample */
- c->base.sampleBuffers = 0;
- c->base.samples = 0;
-
- /* SGIX_fbconfig / GLX 1.3 */
- c->base.drawableType = (((pfd.dwFlags & PFD_DRAW_TO_WINDOW) ? GLX_WINDOW_BIT : 0)
- | ((pfd.dwFlags & PFD_DRAW_TO_BITMAP) ? GLX_PIXMAP_BIT : 0));
- c->base.renderType = GLX_RGBA_BIT;
- c->base.xRenderable = GL_TRUE;
- c->base.fbconfigID = -1; // will be set by __glXScreenInit()
-
- /* SGIX_pbuffer / GLX 1.3 */
- // XXX: How can we find these values out ???
- c->base.maxPbufferWidth = -1;
- c->base.maxPbufferHeight = -1;
- c->base.maxPbufferPixels = -1;
- c->base.optimalPbufferWidth = 0; // there is no optimal value
- c->base.optimalPbufferHeight = 0;
-
- /* SGIX_visual_select_group */
- // arrange for visuals with the best acceleration to be preferred in selection
- switch (pfd.dwFlags & (PFD_GENERIC_FORMAT | PFD_GENERIC_ACCELERATED))
- {
- case 0:
- c->base.visualSelectGroup = 2;
- break;
-
- case PFD_GENERIC_ACCELERATED:
- c->base.visualSelectGroup = 1;
- break;
-
- case PFD_GENERIC_FORMAT:
- c->base.visualSelectGroup = 0;
- break;
-
- default:
- ;
- // "can't happen"
- }
-
- /* OML_swap_method */
- if (pfd.dwFlags & PFD_SWAP_EXCHANGE)
- c->base.swapMethod = GLX_SWAP_EXCHANGE_OML;
- else if (pfd.dwFlags & PFD_SWAP_COPY)
- c->base.swapMethod = GLX_SWAP_COPY_OML;
- else
- c->base.swapMethod = GLX_SWAP_UNDEFINED_OML;
-
- /* EXT_import_context */
- c->base.screen = screen->base.pScreen->myNum;
-
- /* EXT_texture_from_pixmap */
- c->base.bindToTextureRgb = -1;
- c->base.bindToTextureRgba = -1;
- c->base.bindToMipmapTexture = -1;
- c->base.bindToTextureTargets = -1;
- c->base.yInverted = -1;
-
- n++;
-
- // update previous config to point to this config
- if (prev)
- prev->base.next = &(c->base);
-
- prev = c;
- }
-
- GLWIN_DEBUG_MSG("found %d pixelFormats suitable for conversion to fbConfigs", n);
-
- screen->base.numFBConfigs = n;
- screen->base.fbconfigs = &(result->base);
-}
-
-// helper function to access an attribute value from an attribute value array by attribute
-static
-int getAttrValue(const int attrs[], int values[], unsigned int num, int attr, int fallback)
-{
- unsigned int i;
- for (i = 0; i < num; i++)
- {
- if (attrs[i] == attr)
- {
- GLWIN_TRACE_MSG("getAttrValue attr 0x%x, value %d", attr, values[i]);
- return values[i];
- }
- }
-
- ErrorF("getAttrValue failed to find attr 0x%x, using default value %d\n", attr, fallback);
- return fallback;
-}
-
-//
-// Create the GLXconfigs using wglGetPixelFormatAttribfvARB() extension
-//
-static void
-glxWinCreateConfigsExt(HDC hdc, glxWinScreen *screen)
-{
- GLXWinConfig *c, *result, *prev = NULL;
- int i = 0;
- int n = 0;
-
- const int attr = WGL_NUMBER_PIXEL_FORMATS_ARB;
- int numConfigs;
-
- int attrs[50];
- unsigned int num_attrs = 0;
-
- GLWIN_DEBUG_MSG("glxWinCreateConfigsExt");
-
- screen->base.numFBConfigs = 0;
- screen->base.fbconfigs = NULL;
-
- if (!wglGetPixelFormatAttribivARBWrapper(hdc, 0, 0, 1, &attr, &numConfigs))
- {
- ErrorF("wglGetPixelFormatAttribivARB failed for WGL_NUMBER_PIXEL_FORMATS_ARB: %s\n", glxWinErrorMessage());
- return;
- }
-
- GLWIN_DEBUG_MSG("wglGetPixelFormatAttribivARB says %d possible pixel formats", numConfigs);
-
- /* alloc */
- result = xalloc(sizeof(GLXWinConfig) * numConfigs);
-
- if (NULL == result)
- {
- return;
- }
-
- memset(result, 0, sizeof(GLXWinConfig) * numConfigs);
- n = 0;
-
-#define ADD_ATTR(a) { attrs[num_attrs++] = a; assert(num_attrs < NUM_ELEMENTS(attrs)); }
-
- ADD_ATTR(WGL_DRAW_TO_WINDOW_ARB);
- ADD_ATTR(WGL_DRAW_TO_BITMAP_ARB);
- ADD_ATTR(WGL_ACCELERATION_ARB);
- ADD_ATTR(WGL_SWAP_LAYER_BUFFERS_ARB);
- ADD_ATTR(WGL_NUMBER_OVERLAYS_ARB);
- ADD_ATTR(WGL_NUMBER_UNDERLAYS_ARB);
- ADD_ATTR(WGL_TRANSPARENT_ARB);
- ADD_ATTR(WGL_TRANSPARENT_RED_VALUE_ARB);
- ADD_ATTR(WGL_TRANSPARENT_GREEN_VALUE_ARB);
- ADD_ATTR(WGL_TRANSPARENT_GREEN_VALUE_ARB);
- ADD_ATTR(WGL_TRANSPARENT_ALPHA_VALUE_ARB);
- ADD_ATTR(WGL_SUPPORT_OPENGL_ARB);
- ADD_ATTR(WGL_DOUBLE_BUFFER_ARB);
- ADD_ATTR(WGL_STEREO_ARB);
- ADD_ATTR(WGL_PIXEL_TYPE_ARB);
- ADD_ATTR(WGL_COLOR_BITS_ARB);
- ADD_ATTR(WGL_RED_BITS_ARB);
- ADD_ATTR(WGL_RED_SHIFT_ARB);
- ADD_ATTR(WGL_GREEN_BITS_ARB);
- ADD_ATTR(WGL_GREEN_SHIFT_ARB);
- ADD_ATTR(WGL_BLUE_BITS_ARB);
- ADD_ATTR(WGL_BLUE_SHIFT_ARB);
- ADD_ATTR(WGL_ALPHA_BITS_ARB);
- ADD_ATTR(WGL_ALPHA_SHIFT_ARB);
- ADD_ATTR(WGL_ACCUM_RED_BITS_ARB);
- ADD_ATTR(WGL_ACCUM_GREEN_BITS_ARB);
- ADD_ATTR(WGL_ACCUM_BLUE_BITS_ARB);
- ADD_ATTR(WGL_ACCUM_ALPHA_BITS_ARB);
- ADD_ATTR(WGL_DEPTH_BITS_ARB);
- ADD_ATTR(WGL_STENCIL_BITS_ARB);
- ADD_ATTR(WGL_AUX_BUFFERS_ARB);
- ADD_ATTR(WGL_SWAP_METHOD_ARB);
-
- if (screen->has_WGL_ARB_multisample)
- {
- // we may not query these attrs if WGL_ARB_multisample is not offered
- ADD_ATTR(WGL_SAMPLE_BUFFERS_ARB);
- ADD_ATTR(WGL_SAMPLES_ARB);
- }
-
- if (screen->has_WGL_ARB_render_texture)
- {
- // we may not query these attrs if WGL_ARB_render_texture is not offered
- ADD_ATTR(WGL_BIND_TO_TEXTURE_RGB_ARB);
- ADD_ATTR(WGL_BIND_TO_TEXTURE_RGBA_ARB);
- }
-
- if (screen->has_WGL_ARB_pbuffer)
- {
- // we may not query these attrs if WGL_ARB_pbuffer is not offered
- ADD_ATTR(WGL_DRAW_TO_PBUFFER_ARB);
- ADD_ATTR(WGL_MAX_PBUFFER_PIXELS_ARB);
- ADD_ATTR(WGL_MAX_PBUFFER_WIDTH_ARB);
- ADD_ATTR(WGL_MAX_PBUFFER_HEIGHT_ARB);
- }
-
- /* fill in configs */
- for (i = 0; i < numConfigs; i++)
- {
- int sizevalues=num_attrs*sizeof(int);
- int *values=(int*)_alloca(sizevalues);
-
- memset(values,0,sizevalues);
-
- c = &(result[i]);
- c->base.next = NULL;
- c->pixelFormatIndex = i+1;
-
- if (!wglGetPixelFormatAttribivARBWrapper(hdc, i+1, 0, num_attrs, attrs, values))
- {
- ErrorF("wglGetPixelFormatAttribivARB failed for index %d, error %s\n", i+1, glxWinErrorMessage());
- break;
- }
-
-#define ATTR_VALUE(a, d) getAttrValue(attrs, values, num_attrs, (a), (d))
-
- if (!ATTR_VALUE(WGL_SUPPORT_OPENGL_ARB, 0))
- {
- GLWIN_DEBUG_MSG("pixelFormat %d isn't WGL_SUPPORT_OPENGL_ARB, skipping", i+1);
- continue;
- }
-
- c->base.doubleBufferMode = ATTR_VALUE(WGL_DOUBLE_BUFFER_ARB, 0) ? GL_TRUE : GL_FALSE;
- c->base.stereoMode = ATTR_VALUE(WGL_STEREO_ARB, 0) ? GL_TRUE : GL_FALSE;
-
- c->base.redBits = ATTR_VALUE(WGL_RED_BITS_ARB, 0);
- c->base.greenBits = ATTR_VALUE(WGL_GREEN_BITS_ARB, 0);
- c->base.blueBits = ATTR_VALUE(WGL_BLUE_BITS_ARB, 0);
- c->base.alphaBits = ATTR_VALUE(WGL_ALPHA_BITS_ARB, 0);
-
- c->base.redMask = BITS_AND_SHIFT_TO_MASK(c->base.redBits, ATTR_VALUE(WGL_RED_SHIFT_ARB, 0));
- c->base.greenMask = BITS_AND_SHIFT_TO_MASK(c->base.greenBits, ATTR_VALUE(WGL_GREEN_SHIFT_ARB, 0));
- c->base.blueMask = BITS_AND_SHIFT_TO_MASK(c->base.blueBits, ATTR_VALUE(WGL_BLUE_SHIFT_ARB, 0));
- c->base.alphaMask = BITS_AND_SHIFT_TO_MASK(c->base.alphaBits, ATTR_VALUE(WGL_ALPHA_SHIFT_ARB, 0));
-
- switch (ATTR_VALUE(WGL_PIXEL_TYPE_ARB, 0))
- {
- case WGL_TYPE_COLORINDEX_ARB:
- c->base.indexBits = ATTR_VALUE(WGL_COLOR_BITS_ARB, 0);
- c->base.rgbBits = 0;
- c->base.visualType = GLX_STATIC_COLOR;
- break;
-
- case WGL_TYPE_RGBA_FLOAT_ARB:
- GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_RGBA_FLOAT_ARB, skipping", i+1);
- continue;
-
- case WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT:
- GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT, skipping", i+1);
- continue;
-
- case WGL_TYPE_RGBA_ARB:
- c->base.indexBits = 0;
- c->base.rgbBits = ATTR_VALUE(WGL_COLOR_BITS_ARB, 0);
- c->base.visualType = GLX_TRUE_COLOR;
- break;
-
- default:
- ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_PIXEL_TYPE_ARB\n", ATTR_VALUE(WGL_PIXEL_TYPE_ARB, 0));
- continue;
- }
-
- c->base.accumRedBits = ATTR_VALUE(WGL_ACCUM_RED_BITS_ARB, 0);
- c->base.accumGreenBits = ATTR_VALUE(WGL_ACCUM_GREEN_BITS_ARB, 0);
- c->base.accumBlueBits = ATTR_VALUE(WGL_ACCUM_BLUE_BITS_ARB, 0);
- c->base.accumAlphaBits = ATTR_VALUE(WGL_ACCUM_ALPHA_BITS_ARB, 0);
-
- c->base.depthBits = ATTR_VALUE(WGL_DEPTH_BITS_ARB, 0);
- c->base.stencilBits = ATTR_VALUE(WGL_STENCIL_BITS_ARB, 0);
- c->base.numAuxBuffers = ATTR_VALUE(WGL_AUX_BUFFERS_ARB, 0);
-
- {
- int layers = ATTR_VALUE(WGL_NUMBER_OVERLAYS_ARB,0) + ATTR_VALUE(WGL_NUMBER_UNDERLAYS_ARB, 0);
-
- if (layers > 0)
- {
- ErrorF("pixelFormat %d: has %d overlay, %d underlays which aren't currently handled", i, ATTR_VALUE(WGL_NUMBER_OVERLAYS_ARB,0), ATTR_VALUE(WGL_NUMBER_UNDERLAYS_ARB, 0));
- // XXX: need to iterate over layers?
- }
- }
- c->base.level = 0;
-
- c->base.pixmapMode = 0; // ???
- c->base.visualID = -1; // will be set by __glXScreenInit()
-
- /* EXT_visual_rating / GLX 1.2 */
- switch (ATTR_VALUE(WGL_ACCELERATION_ARB, 0))
- {
- default:
- ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_ACCELERATION_ARB\n", ATTR_VALUE(WGL_ACCELERATION_ARB, 0));
-
- case WGL_NO_ACCELERATION_ARB:
- c->base.visualRating = GLX_SLOW_VISUAL_EXT;
- break;
-
- case WGL_GENERIC_ACCELERATION_ARB:
- case WGL_FULL_ACCELERATION_ARB:
- c->base.visualRating = GLX_NONE_EXT;
- break;
- }
-
- /* EXT_visual_info / GLX 1.2 */
- // c->base.visualType is set above
- if (ATTR_VALUE(WGL_TRANSPARENT_ARB, 0))
- {
- c->base.transparentPixel = (c->base.visualType == GLX_TRUE_COLOR) ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT;
- c->base.transparentRed = ATTR_VALUE(WGL_TRANSPARENT_RED_VALUE_ARB, 0);
- c->base.transparentGreen = ATTR_VALUE(WGL_TRANSPARENT_GREEN_VALUE_ARB, 0);
- c->base.transparentBlue = ATTR_VALUE(WGL_TRANSPARENT_BLUE_VALUE_ARB, 0);
- c->base.transparentAlpha = ATTR_VALUE(WGL_TRANSPARENT_ALPHA_VALUE_ARB, 0);
- c->base.transparentIndex = ATTR_VALUE(WGL_TRANSPARENT_INDEX_VALUE_ARB, 0);
- }
- else
- {
- c->base.transparentPixel = GLX_NONE_EXT;
- c->base.transparentRed = GLX_NONE;
- c->base.transparentGreen = GLX_NONE;
- c->base.transparentBlue = GLX_NONE;
- c->base.transparentAlpha = GLX_NONE;
- c->base.transparentIndex = GLX_NONE;
- }
-
- /* ARB_multisample / SGIS_multisample */
- if (screen->has_WGL_ARB_multisample)
- {
- c->base.sampleBuffers = ATTR_VALUE(WGL_SAMPLE_BUFFERS_ARB, 0);
- c->base.samples = ATTR_VALUE(WGL_SAMPLES_ARB, 0);
- }
- else
- {
- c->base.sampleBuffers = 0;
- c->base.samples = 0;
- }
-
- /* SGIX_fbconfig / GLX 1.3 */
- c->base.drawableType = ((ATTR_VALUE(WGL_DRAW_TO_WINDOW_ARB, 0) ? GLX_WINDOW_BIT : 0)
- | (ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, 0) ? GLX_PIXMAP_BIT : 0)
- | (ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, 0) ? GLX_PBUFFER_BIT : 0));
- c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT; // Hmmm ???
- c->base.xRenderable = GL_TRUE;
- c->base.fbconfigID = -1; // will be set by __glXScreenInit()
-
- /* SGIX_pbuffer / GLX 1.3 */
- if (screen->has_WGL_ARB_pbuffer)
- {
- c->base.maxPbufferWidth = ATTR_VALUE(WGL_MAX_PBUFFER_WIDTH_ARB, -1);
- c->base.maxPbufferHeight = ATTR_VALUE(WGL_MAX_PBUFFER_HEIGHT_ARB, -1);
- c->base.maxPbufferPixels = ATTR_VALUE(WGL_MAX_PBUFFER_PIXELS_ARB, -1);
- }
- else
- {
- c->base.maxPbufferWidth = -1;
- c->base.maxPbufferHeight = -1;
- c->base.maxPbufferPixels = -1;
- }
- c->base.optimalPbufferWidth = 0; // there is no optimal value
- c->base.optimalPbufferHeight = 0;
-
- /* SGIX_visual_select_group */
- // arrange for visuals with the best acceleration to be preferred in selection
- switch (ATTR_VALUE(WGL_ACCELERATION_ARB, 0))
- {
- case WGL_FULL_ACCELERATION_ARB:
- c->base.visualSelectGroup = 2;
- break;
-
- case WGL_GENERIC_ACCELERATION_ARB:
- c->base.visualSelectGroup = 1;
- break;
-
- default:
- case WGL_NO_ACCELERATION_ARB:
- c->base.visualSelectGroup = 0;
- break;
- }
-
- /* OML_swap_method */
- switch (ATTR_VALUE(WGL_SWAP_METHOD_ARB, 0))
- {
- case WGL_SWAP_EXCHANGE_ARB:
- c->base.swapMethod = GLX_SWAP_EXCHANGE_OML;
- break;
-
- case WGL_SWAP_COPY_ARB:
- c->base.swapMethod = GLX_SWAP_COPY_OML;
- break;
-
- default:
- ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_SWAP_METHOD_ARB\n", ATTR_VALUE(WGL_SWAP_METHOD_ARB, 0));
-
- case WGL_SWAP_UNDEFINED_ARB:
- c->base.swapMethod = GLX_SWAP_UNDEFINED_OML;
- }
-
- /* EXT_import_context */
- c->base.screen = screen->base.pScreen->myNum;
-
- /* EXT_texture_from_pixmap */
- /*
- Mesa's DRI configs always have bindToTextureRgb/Rgba TRUE (see driCreateConfigs(), so setting
- bindToTextureRgb/bindToTextureRgba to FALSE means that swrast can't find any fbConfigs to use,
- so setting these to 0, even if we know bindToTexture isn't available, isn't a good idea...
- */
- if (screen->has_WGL_ARB_render_texture)
- {
- c->base.bindToTextureRgb = ATTR_VALUE(WGL_BIND_TO_TEXTURE_RGB_ARB, -1);
- c->base.bindToTextureRgba = ATTR_VALUE(WGL_BIND_TO_TEXTURE_RGBA_ARB, -1);
- }
- else
- {
- c->base.bindToTextureRgb = -1;
- c->base.bindToTextureRgba = -1;
- }
- c->base.bindToMipmapTexture = -1;
- c->base.bindToTextureTargets = GLX_TEXTURE_1D_BIT_EXT | GLX_TEXTURE_2D_BIT_EXT | GLX_TEXTURE_RECTANGLE_BIT_EXT;
- c->base.yInverted = -1;
-
- n++;
-
- // update previous config to point to this config
- if (prev)
- prev->base.next = &(c->base);
-
- prev = c;
- }
-
- screen->base.numFBConfigs = n;
- screen->base.fbconfigs = &(result->base);
-}
+/* + * File: indirect.c + * Purpose: A GLX implementation that uses Windows OpenGL library + * + * Authors: Alexander Gottwald + * Jon TURNEY + * + * Copyright (c) Jon TURNEY 2009 + * Copyright (c) Alexander Gottwald 2004 + * + * Portions of this file are copied from GL/apple/indirect.c, + * which contains the following copyright: + * + * Copyright (c) 2007, 2008, 2009 Apple Inc. + * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved. + * Copyright (c) 2002 Greg Parker. All Rights Reserved. + * + * Portions of this file are copied from Mesa's 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. + */ + +/* + TODO: + - hook up remaining unimplemented extensions + - research what guarantees glXWaitX, glXWaitGL are supposed to offer, and implement then + using GdiFlush and/or glFinish + - pbuffer clobbering: we don't get async notification, but can we arrange to emit the + event when we notice it's been clobbered? at the very least, check if it's been clobbered + before using it? + - are the __GLXConfig * we get handed back ones we are made (so we can extend the structure + with privates?) Or are they created inside the GLX core as well? +*/ + +/* + MSDN clarifications: + + It says SetPixelFormat()'s PIXELFORMATDESCRIPTOR pointer argument has no effect + except on metafiles, this seems to mean that as it's ok to supply NULL if the DC + is not for a metafile + + wglMakeCurrent ignores the hdc if hglrc is NULL, so wglMakeCurrent(NULL, NULL) + is used to make no context current + +*/ + +#ifdef HAVE_XWIN_CONFIG_H +#include <xwin-config.h> +#endif + +#include "glwindows.h" +#include <glx/glxserver.h> +#include <glx/glxutil.h> +#include <glx/extension_string.h> +#include <GL/glxtokens.h> + +#include <winpriv.h> +#include <wgl_ext_api.h> +#include "win.h" +#include <winmsg.h> + +extern Bool g_fXdmcpEnabled; +extern Bool g_fNativeGl; + +#define NUM_ELEMENTS(x) (sizeof(x)/ sizeof(x[1])) + +/* ---------------------------------------------------------------------- */ +/* + * structure definitions + */ + +typedef struct __GLXWinContext __GLXWinContext; +typedef struct __GLXWinDrawable __GLXWinDrawable; +typedef struct __GLXWinScreen glxWinScreen; +typedef struct __GLXWinConfig GLXWinConfig; + +struct __GLXWinContext { + __GLXcontext base; + HGLRC ctx; /* Windows GL Context */ + HDC hDC; /* Windows device context */ + HDC hreadDC; /* Windows device read context */ + __GLXWinContext *shareContext; /* Context with which we will share display lists and textures */ + HWND hwnd; /* For detecting when HWND has changed */ + HWND hreadwnd; +}; + +struct __GLXWinDrawable +{ + __GLXdrawable base; + __GLXWinContext *drawContext; + + /* If this drawable is GLX_DRAWABLE_PBUFFER */ + HPBUFFERARB hPbuffer; + + /* If this drawable is GLX_DRAWABLE_PIXMAP */ + HDC dibDC; + HBITMAP hDIB; + HBITMAP hOldDIB; /* original DIB for DC */ + void *pOldBits; /* original pBits for this drawable's pixmap */ +}; + +struct __GLXWinScreen +{ + __GLXscreen base; + + /* Supported GLX extensions */ + unsigned char glx_enable_bits[__GLX_EXT_BYTES]; + + Bool has_WGL_ARB_multisample; + Bool has_WGL_ARB_pixel_format; + Bool has_WGL_ARB_pbuffer; + Bool has_WGL_ARB_render_texture; + + /* wrapped screen functions */ + RealizeWindowProcPtr RealizeWindow; + UnrealizeWindowProcPtr UnrealizeWindow; + DestroyWindowProcPtr DestroyWindow; + CopyWindowProcPtr CopyWindow; + PositionWindowProcPtr PositionWindow; +}; + +struct __GLXWinConfig +{ + __GLXconfig base; + int pixelFormatIndex; +}; + +/* ---------------------------------------------------------------------- */ +/* + * Various debug helpers + */ + +#ifdef _DEBUG +void GLWIN_DEBUG_HWND(HWND hwnd) +{ + if (glxWinDebugSettings.dumpHWND) + { + char buffer[1024]; + RECT Rect; + HDC hDc=GetDC(hwnd); + + if (GetWindowText(hwnd, buffer, sizeof(buffer))==0) *buffer=0; + GetWindowRect(hwnd,&Rect); + + GLWIN_DEBUG_MSG("Got HWND %p (hdc %p) for window '%s' (%d,%d,%d,%d)", hwnd, hDc, buffer, Rect.left, Rect.top, Rect.right, Rect.bottom); + ReleaseDC(hwnd,hDc); + } +} + +void GLWIN_HDC_DEBUG_MSG(const char *Message, HDC hDc, HWND hwnd) +{ + char buffer[1024]; + RECT Rect; + + if (GetWindowText(hwnd, buffer, sizeof(buffer))==0) *buffer=0; + GetWindowRect(hwnd,&Rect); + + GLWIN_DEBUG_MSG("Got HDC %p (hwnd %p) for window '%s' (%d,%d,%d,%d)", hDc, hwnd, buffer, Rect.left, Rect.top, Rect.right, Rect.bottom); + +} + +glxWinDebugSettingsRec glxWinDebugSettings = { 0, 0, 0, 0, 0, 0}; + +static void glxWinInitDebugSettings(void) +{ + char *envptr; + + envptr = getenv("GLWIN_ENABLE_DEBUG"); + if (envptr != NULL) + glxWinDebugSettings.enableDebug = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_ENABLE_TRACE"); + if (envptr != NULL) + glxWinDebugSettings.enableTrace = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_DUMP_PFD"); + if (envptr != NULL) + glxWinDebugSettings.dumpPFD = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_DUMP_HWND"); + if (envptr != NULL) + glxWinDebugSettings.dumpHWND = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_DUMP_DC"); + if (envptr != NULL) + glxWinDebugSettings.dumpDC = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_ENABLE_GLCALL_TRACE"); + if (envptr != NULL) + glxWinDebugSettings.enableGLcallTrace = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_ENABLE_WGLCALL_TRACE"); + if (envptr != NULL) + glxWinDebugSettings.enableWGLcallTrace = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_DEBUG_ALL"); + if (envptr != NULL) + { + glxWinDebugSettings.enableDebug = 1; + glxWinDebugSettings.enableTrace = 1; + glxWinDebugSettings.dumpPFD = 1; + glxWinDebugSettings.dumpHWND = 1; + glxWinDebugSettings.dumpDC = 1; + glxWinDebugSettings.enableGLcallTrace = 1; + glxWinDebugSettings.enableWGLcallTrace = 1; + } +} +#endif + +static +const char *glxWinErrorMessage(void) +{ + static char errorbuffer[1024]; + DWORD Error=GetLastError(); + int offset; + + sprintf(errorbuffer, "%p ",Error); + offset=strlen(errorbuffer); + + if (!FormatMessage( + FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, + Error, + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + (LPTSTR) &errorbuffer[offset], + sizeof(errorbuffer), + NULL )) + { + snprintf(errorbuffer, sizeof(errorbuffer), "Unknown error in FormatMessage: %08x!", (unsigned)GetLastError()); + } + + if (errorbuffer[strlen(errorbuffer)-1] == '\n') + errorbuffer[strlen(errorbuffer)-1] = 0; + + return errorbuffer; +} + +static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd); + +#ifdef _DEBUG + +#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_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 const char * +visual_class_name(int cls) +{ + switch (cls) { + case GLX_STATIC_COLOR: + return "StaticColor"; + case GLX_PSEUDO_COLOR: + return "PseudoColor"; + case GLX_STATIC_GRAY: + return "StaticGray"; + case GLX_GRAY_SCALE: + return "GrayScale"; + case GLX_TRUE_COLOR: + return "TrueColor"; + case GLX_DIRECT_COLOR: + return "DirectColor"; + default: + return "-none-"; + } +} + +static const char * +swap_method_name(int mthd) +{ + switch (mthd) + { + case GLX_SWAP_EXCHANGE_OML: + return "xchg"; + case GLX_SWAP_COPY_OML: + return "copy"; + case GLX_SWAP_UNDEFINED_OML: + return " "; + default: + return "????"; + } +} + +static void +fbConfigsDump(unsigned int n, __GLXconfig *c) +{ + ErrorF("%d fbConfigs\n", n); + ErrorF("pxf vis fb render Ste aux accum MS drawable Group/\n"); + ErrorF("idx ID ID VisualType Depth Lvl RGB CI DB Swap reo R G B A Z S buf AR AG AB AA bufs num W P Pb Float Trans Caveat\n"); + ErrorF("-----------------------------------------------------------------------------------------------------------------------------\n"); + + while (c != NULL) + { + unsigned int i = ((GLXWinConfig *)c)->pixelFormatIndex; + + ErrorF("%3d %2x %2x " + "%-11s" + " %3d %3d %s %s %s %s %s " + "%2d %2d %2d %2d " + "%2d %2d " + "%2d " + "%2d %2d %2d %2d" + " %2d %2d" + " %s %s %s " + " %s " + " %s " + " %d %s" + "\n", + i, c->visualID, c->fbconfigID, + visual_class_name(c->visualType), + c->rgbBits ? c->rgbBits : c->indexBits, + c->level, + (c->renderType & GLX_RGBA_BIT) ? "y" : ".", + (c->renderType & GLX_COLOR_INDEX_BIT) ? "y" : ".", + c->doubleBufferMode ? "y" : ".", + swap_method_name(c->swapMethod), + c->stereoMode ? "y" : ".", + c->redBits, c->greenBits, c->blueBits, c->alphaBits, + c->depthBits, c->stencilBits, + c->numAuxBuffers, + c->accumRedBits, c->accumGreenBits, c->accumBlueBits, c->accumAlphaBits, + c->sampleBuffers, c->samples, + (c->drawableType & GLX_WINDOW_BIT) ? "y" : ".", + (c->drawableType & GLX_PIXMAP_BIT) ? "y" : ".", + (c->drawableType & GLX_PBUFFER_BIT) ? "y" : ".", + ".", + (c->transparentPixel != GLX_NONE_EXT) ? "y" : ".", + c->visualSelectGroup, (c->visualRating == GLX_SLOW_VISUAL_EXT) ? "*" : " "); + + c = c->next; + } +} +#endif + +/* ---------------------------------------------------------------------- */ +/* + * Forward declarations + */ + +static __GLXscreen *glxWinScreenProbe(ScreenPtr pScreen); +static __GLXcontext *glxWinCreateContext(__GLXscreen *screen, + __GLXconfig *modes, + __GLXcontext *baseShareContext); +static __GLXdrawable *glxWinCreateDrawable(__GLXscreen *screen, + DrawablePtr pDraw, + int type, + XID drawId, + __GLXconfig *conf); + +static Bool glxWinRealizeWindow(WindowPtr pWin); +static Bool glxWinUnrealizeWindow(WindowPtr pWin); +static Bool glxWinDestroyWindow(WindowPtr pWin); +static void glxWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc); +static Bool glxWinPositionWindow(WindowPtr pWindow, int x, int y); + +static HDC glxWinMakeDC(__GLXWinContext *gc, __GLXWinDrawable *draw, HWND *hwnd); +static void glxWinReleaseDC(HWND hwnd, HDC hdc, __GLXWinDrawable *draw); + +static void glxWinCreateConfigs(HDC dc, glxWinScreen *screen); +static void glxWinCreateConfigsExt(HDC hdc, glxWinScreen *screen); +static int fbConfigToPixelFormat(__GLXconfig *mode, PIXELFORMATDESCRIPTOR *pfdret, int drawableTypeOverride); +static int fbConfigToPixelFormatIndex(HDC hdc, __GLXconfig *mode, int drawableTypeOverride, glxWinScreen *winScreen); + +/* ---------------------------------------------------------------------- */ +/* + * The GLX provider + */ + +__GLXprovider __glXWGLProvider = { + glxWinScreenProbe, + "Win32 native WGL", + NULL +}; + +void +glxWinPushNativeProvider(void) +{ + if (g_fNativeGl) + GlxPushProvider(&__glXWGLProvider); +} + +/* ---------------------------------------------------------------------- */ +/* + * Screen functions + */ + +static void +glxWinScreenDestroy(__GLXscreen *screen) +{ + GLWIN_DEBUG_MSG("glxWinScreenDestroy(%p)", screen); + __glXScreenDestroy(screen); + xfree(screen); +} + +static int +glxWinScreenSwapInterval(__GLXdrawable *drawable, int interval) +{ + BOOL ret = wglSwapIntervalEXTWrapper(interval); + if (!ret) + { + ErrorF("wglSwapIntervalEXT interval %d failed:%s\n", interval, glxWinErrorMessage()); + } + return ret; +} + +static LRESULT CALLBACK GlxWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) +{ + if (uMsg== WM_NCHITTEST) + { + return HTTRANSPARENT; + } + else + return DefWindowProc(hwnd, uMsg, wParam, lParam); +} + +/* + Report the extensions split and formatted to avoid overflowing a line + */ +static void +glxLogExtensions(const char *prefix, const char *extensions) +{ + int length = 0; + char *strl; + char *str = xalloc(strlen(extensions) + 1); + + if (str == NULL) + { + ErrorF("glxLogExtensions: xalloc error\n"); + return; + } + + str[strlen(extensions)] = '\0'; + strncpy (str, extensions, strlen(extensions)); + + strl = strtok(str, " "); + winDebug("%s%s", prefix, strl); + length = strlen(prefix) + strlen(strl); + + while (1) + { + strl = strtok(NULL, " "); + if (strl == NULL) break; + + if (length + strlen(strl) + 1 > 120) + { + winDebug("\n"); + winDebug("%s",prefix); + length = strlen(prefix); + } + else + { + winDebug(" "); + length++; + } + + winDebug("%s", strl); + length = length + strlen(strl); + } + + winDebug("\n"); + + xfree(str); +} + +/* This is called by GlxExtensionInit() asking the GLX provider if it can handle the screen... */ +static __GLXscreen * +glxWinScreenProbe(ScreenPtr pScreen) +{ + glxWinScreen *screen; + const char *gl_extensions; + const char *wgl_extensions; + HWND hwnd; + HDC hdc; + HGLRC hglrc; + + GLWIN_DEBUG_MSG("glxWinScreenProbe"); + +#ifdef _DEBUG + glxWinInitDebugSettings(); +#endif + + if (pScreen == NULL) + return NULL; + + if (!winCheckScreenAiglxIsSupported(pScreen)) + { + LogMessage(X_ERROR,"AIGLX: No native OpenGL in modes with a root window\n"); + return NULL; + } + + screen = xcalloc(1, sizeof(glxWinScreen)); + + if (NULL == screen) + return NULL; + + /* Wrap RealizeWindow, UnrealizeWindow and CopyWindow on this screen */ + screen->RealizeWindow = pScreen->RealizeWindow; + pScreen->RealizeWindow = glxWinRealizeWindow; + screen->UnrealizeWindow = pScreen->UnrealizeWindow; + pScreen->UnrealizeWindow = glxWinUnrealizeWindow; + screen->CopyWindow = pScreen->CopyWindow; + pScreen->CopyWindow = glxWinCopyWindow; + screen->PositionWindow = pScreen->PositionWindow; + pScreen->PositionWindow = glxWinPositionWindow; + screen->DestroyWindow = pScreen->DestroyWindow; + pScreen->DestroyWindow = glxWinDestroyWindow; + + /* Dump out some useful information about the native renderer */ + + // create window class + { + static wATOM glTestWndClass = 0; + if (glTestWndClass == 0) + { + WNDCLASSEX wc; + glTestWndClass=1; + wc.cbSize = sizeof(WNDCLASSEX); + wc.style = CS_OWNDC ; + wc.lpfnWndProc = GlxWindowProc; + wc.cbClsExtra = 0; + wc.cbWndExtra = 0; + wc.hInstance = GetModuleHandle(NULL); + wc.hIcon = 0; + wc.hCursor = 0; + wc.hbrBackground = 0; + wc.lpszMenuName = NULL; + wc.lpszClassName = WIN_GL_WINDOW_CLASS; + wc.hIconSm = 0; + RegisterClassEx (&wc); + } + } + + // create an invisible window for a scratch DC + hwnd = CreateWindowExA(0, + WIN_GL_WINDOW_CLASS, + "XWin GL Renderer Capabilities Test Window", + 0, 0, 0, 0, 0, NULL, NULL, GetModuleHandle(NULL), NULL); + if (hwnd == NULL) + LogMessage(X_ERROR,"AIGLX: Couldn't create a window for render capabilities testing\n"); + + hdc = GetDC(hwnd); + + // we must set a pixel format before we can create a context, just use the first one... + SetPixelFormat(hdc, 1, NULL); + hglrc = wglCreateContext(hdc); + wglMakeCurrent(hdc, hglrc); + + // initialize wgl extension proc pointers (don't call them before here...) + // (but we need to have a current context for them to be resolvable) + wglResolveExtensionProcs(); + + winDebug("GL_VERSION: %s\n", glGetStringWrapperNonstatic(GL_VERSION)); + winDebug("GL_VENDOR: %s\n", glGetStringWrapperNonstatic(GL_VENDOR)); + winDebug("GL_RENDERER: %s\n", glGetStringWrapperNonstatic(GL_RENDERER)); + gl_extensions = (const char *)glGetStringWrapperNonstatic(GL_EXTENSIONS); + glxLogExtensions("GL_EXTENSIONS: ", gl_extensions); + wgl_extensions = wglGetExtensionsStringARBWrapper(hdc); + if (!wgl_extensions) wgl_extensions = ""; + glxLogExtensions("WGL_EXTENSIONS: ", wgl_extensions); + + // Can you see the problem here? The extensions string is DC specific + // Different DCs for windows on a multimonitor system driven by multiple cards + // might have completely different capabilities. Of course, good luck getting + // those screens to be accelerated in XP and earlier... + + { + // testing facility to not use any WGL extensions + char *envptr = getenv("GLWIN_NO_WGL_EXTENSIONS"); + if ((envptr != NULL) && (atoi(envptr) != 0)) + { + ErrorF("GLWIN_NO_WGL_EXTENSIONS is set, ignoring WGL_EXTENSIONS\n"); + wgl_extensions = ""; + } + } + + { + Bool glx_sgi_make_current_read = FALSE; + + // + // Based on the WGL extensions available, enable various GLX extensions + // XXX: make this table-driven ? + // + memset(screen->glx_enable_bits, 0, __GLX_EXT_BYTES); + + __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_visual_info"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_visual_rating"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_import_context"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_OML_swap_method"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIX_fbconfig"); + + if (strstr(wgl_extensions, "WGL_ARB_make_current_read")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_make_current_read"); + LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n"); + glx_sgi_make_current_read = TRUE; + } + + if (strstr(gl_extensions, "GL_WIN_swap_hint")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_copy_sub_buffer"); + LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n"); + } + + if (strstr(wgl_extensions, "WGL_EXT_swap_control")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_swap_control"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_swap_control"); + LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n"); + } + +/* // Hmm? screen->texOffset */ +/* if (strstr(wgl_extensions, "WGL_ARB_render_texture")) */ +/* { */ +/* __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_texture_from_pixmap"); */ +/* LogMessage(X_INFO, "AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n"); */ +/* screen->has_WGL_ARB_render_texture = TRUE; */ +/* } */ + + if (strstr(wgl_extensions, "WGL_ARB_pbuffer")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIX_pbuffer"); + LogMessage(X_INFO, "AIGLX: enabled GLX_SGIX_pbuffer\n"); + screen->has_WGL_ARB_pbuffer = TRUE; + } + + if (strstr(wgl_extensions, "WGL_ARB_multisample")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_ARB_multisample"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIS_multisample"); + LogMessage(X_INFO, "AIGLX: enabled GLX_ARB_multisample and GLX_SGIS_multisample\n"); + screen->has_WGL_ARB_multisample = TRUE; + } + + screen->base.destroy = glxWinScreenDestroy; + screen->base.createContext = glxWinCreateContext; + screen->base.createDrawable = glxWinCreateDrawable; + screen->base.swapInterval = glxWinScreenSwapInterval; + screen->base.hyperpipeFuncs = NULL; + screen->base.swapBarrierFuncs = NULL; + screen->base.pScreen = pScreen; + + if (strstr(wgl_extensions, "WGL_ARB_pixel_format")) + { + glxWinCreateConfigsExt(hdc, screen); + screen->has_WGL_ARB_pixel_format = TRUE; + } + else + { + glxWinCreateConfigs(hdc, screen); + screen->has_WGL_ARB_pixel_format = FALSE; + } + // Initializes screen->base.fbconfigs and screen->base.numFBConfigs + + /* These will be set by __glXScreenInit */ + screen->base.visuals = NULL; + screen->base.numVisuals = 0; + + __glXScreenInit(&screen->base, pScreen); + +#ifdef _DEBUG + // dump out fbConfigs now fbConfigIds and visualIDs have been assigned + fbConfigsDump(screen->base.numFBConfigs, screen->base.fbconfigs); +#endif + + // Override the GL extensions string set by __glXScreenInit() + screen->base.GLextensions = xstrdup(gl_extensions); + + // Generate the GLX extensions string (overrides that set by __glXScreenInit()) + { + unsigned int buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL); + if (buffer_size > 0) + { + if (screen->base.GLXextensions != NULL) + { + xfree(screen->base.GLXextensions); + } + + screen->base.GLXextensions = xnfalloc(buffer_size); + __glXGetExtensionString(screen->glx_enable_bits, screen->base.GLXextensions); + } + } + + // + // Override the GLX version (__glXScreenInit() sets it to "1.2") + // if we have all the needed extensionsto operate as a higher version + // + // SGIX_fbconfig && SGIX_pbuffer && SGI_make_current_read -> 1.3 + // ARB_multisample -> 1.4 + // + if (screen->has_WGL_ARB_pbuffer && glx_sgi_make_current_read) + { + xfree(screen->base.GLXversion); + + if (screen->has_WGL_ARB_multisample) + { + screen->base.GLXversion = xstrdup("1.4"); + screen->base.GLXmajor = 1; + screen->base.GLXminor = 4; + } + else + { + screen->base.GLXversion = xstrdup("1.3"); + screen->base.GLXmajor = 1; + screen->base.GLXminor = 3; + } + LogMessage(X_INFO, "AIGLX: Set GLX version to %s\n", screen->base.GLXversion); + } + } + + wglMakeCurrent(NULL, NULL); + wglDeleteContext(hglrc); + ReleaseDC(hwnd, hdc); + DestroyWindow(hwnd); + + return &screen->base; +} + +/* ---------------------------------------------------------------------- */ +/* + * Window functions + */ + +static Bool +glxWinRealizeWindow(WindowPtr pWin) +{ + Bool result; + ScreenPtr pScreen = pWin->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); + winWindowPriv(pWin); + + GLWIN_DEBUG_MSG("glxWinRealizeWindow"); + + /* Allow the window to be created (RootlessRealizeWindow is inside our wrap) */ + pScreen->RealizeWindow = screenPriv->RealizeWindow; + result = pScreen->RealizeWindow(pWin); + pScreen->RealizeWindow = glxWinRealizeWindow; + + // Check if ze need to move the window\n + if (pWinPriv->GlCtxWnd && pWinPriv->hWnd) + { + ShowWindow(pWinPriv->hWnd,SW_SHOW); + } + return result; +} + + +static void +glxWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc) +{ + __GLXWinDrawable *pGlxDraw; + ScreenPtr pScreen = pWindow->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); + + GLWIN_TRACE_MSG("glxWinCopyWindow pWindow %p", pWindow); + + dixLookupResourceByType((pointer) &pGlxDraw, pWindow->drawable.id, __glXDrawableRes, + NullClient, DixUnknownAccess); + + + /* + Discard any CopyWindow requests if a GL drawing context is pointing at the window + + For regions which are being drawn by GL, the shadow framebuffer doesn't have the + correct bits, so we wish to avoid shadow framebuffer damage occuring, which will + cause those incorrect bits to be transferred to the display.... + */ + if (pGlxDraw && pGlxDraw->drawContext) + { + GLWIN_DEBUG_MSG("glxWinCopyWindow: discarding"); + return; + } + + GLWIN_DEBUG_MSG("glxWinCopyWindow - passing to hw layer"); + + pScreen->CopyWindow = screenPriv->CopyWindow; + pScreen->CopyWindow(pWindow, ptOldOrg, prgnSrc); + pScreen->CopyWindow = glxWinCopyWindow; + +} + +static Bool +glxWinPositionWindow(WindowPtr pWin, int x, int y) +{ + Bool result; + ScreenPtr pScreen = pWin->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); + winWindowPriv(pWin); + + pScreen->PositionWindow = screenPriv->PositionWindow; + result = pScreen->PositionWindow(pWin, x, y); + pScreen->PositionWindow = glxWinPositionWindow; + + if (pWinPriv->GlCtxWnd && pWinPriv->hWnd) + { + MoveWindow(pWinPriv->hWnd, + pWin->drawable.x, + pWin->drawable.y, + pWin->drawable.width, + pWin->drawable.height, + FALSE); + } + return result; +} + + +static Bool +glxWinUnrealizeWindow(WindowPtr pWin) +{ + Bool result; + ScreenPtr pScreen = pWin->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *)glxGetScreen(pScreen); + winWindowPriv(pWin); + + GLWIN_DEBUG_MSG("glxWinUnrealizeWindow"); + + pScreen->UnrealizeWindow = screenPriv->UnrealizeWindow; + result = pScreen->UnrealizeWindow(pWin); + pScreen->UnrealizeWindow = glxWinUnrealizeWindow; + + if (pWinPriv->GlCtxWnd && pWinPriv->hWnd) + ShowWindow(pWinPriv->hWnd,SW_HIDE); + + return result; +} + +static Bool +glxWinDestroyWindow(WindowPtr pWin) +{ + Bool result; + ScreenPtr pScreen = pWin->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *)glxGetScreen(pScreen); + winWindowPriv(pWin); + + GLWIN_DEBUG_MSG("glxWinDestroyWindow"); + + if (pWinPriv->GlCtxWnd && pWinPriv->hWnd) + { + __GLXWinDrawable *pGlxDraw; + + dixLookupResourceByType((pointer) &pGlxDraw, pWin->drawable.id, __glXDrawableRes, NullClient, DixUnknownAccess); + + if (pGlxDraw && pGlxDraw->drawContext) + { + if (pGlxDraw->drawContext->hwnd!=pWinPriv->hWnd) + ErrorF("Wrong assumption\n"); + glxWinReleaseDC(pGlxDraw->drawContext->hwnd, pGlxDraw->drawContext->hDC, pGlxDraw); + pGlxDraw->drawContext->hDC=NULL; + pGlxDraw->drawContext->hwnd=NULL; + } + DestroyWindow(pWinPriv->hWnd); + pWinPriv->hWnd=NULL; + pWinPriv->GlCtxWnd=0; + } + + pScreen->DestroyWindow = screenPriv->DestroyWindow; + result = pScreen->DestroyWindow(pWin); + pScreen->DestroyWindow = glxWinDestroyWindow; + + return result; +} + +/* ---------------------------------------------------------------------- */ +/* + * Drawable functions + */ + +static GLboolean +glxWinDrawableSwapBuffers(ClientPtr client, __GLXdrawable *base) +{ + BOOL ret; + __GLXWinDrawable *draw = (__GLXWinDrawable *)base; + + /* Swap buffers on the last active context for drawing on the drawable */ + if (draw->drawContext == NULL) + { + GLWIN_TRACE_MSG("glxWinSwapBuffers - no context for drawable"); + return GL_FALSE; + } + + GLWIN_TRACE_MSG("glxWinSwapBuffers on drawable %p, last context %p (native ctx %p)", base, draw->drawContext, draw->drawContext->ctx); + + /* + draw->drawContext->base.drawPriv will not be set if the context is not current anymore, + but if it is, it should point to this drawable.... + */ + assert((draw->drawContext->base.drawPriv == NULL) || (draw->drawContext->base.drawPriv == base)); + + ret = SwapBuffers(draw->drawContext->hDC); + + if (!ret) + { + ErrorF("wglSwapBuffers failed: %s\n", glxWinErrorMessage()); + return GL_FALSE; + } + + return GL_TRUE; +} + +static void +glxWinDrawableCopySubBuffer(__GLXdrawable *drawable, + int x, int y, int w, int h) +{ + glAddSwapHintRectWINWrapperNonstatic(x, y, w, h); + glxWinDrawableSwapBuffers(NULL, drawable); +} + +static void +glxWinDrawableDestroy(__GLXdrawable *base) +{ + __GLXWinDrawable *glxPriv = (__GLXWinDrawable *)base; + + if (glxPriv->drawContext && (__glXLastContext == &((glxPriv->drawContext)->base))) + { + // if this context is current and has unflushed commands, say we have flushed them + // (don't actually flush them, the window is going away anyhow, and an implict flush occurs + // on the next context change) + // (GLX core considers it an error when we try to select a new current context if the old one + // has unflushed commands, but the window has disappeared..) + __GLX_NOTE_FLUSHED_CMDS(__glXLastContext); + __glXLastContext = NULL; + } + + if (glxPriv->hPbuffer) + if (!wglDestroyPbufferARBWrapper(glxPriv->hPbuffer)) + { + ErrorF("wglDestroyPbufferARB failed: %s\n", glxWinErrorMessage()); + } + + if (glxPriv->dibDC) + { + // restore the default DIB + SelectObject(glxPriv->dibDC, glxPriv->hOldDIB); + + if (!DeleteDC(glxPriv->dibDC)) + { + ErrorF("DeleteDC failed: %s\n", glxWinErrorMessage()); + } + } + + if (glxPriv->hDIB) + { + if (!DeleteObject(glxPriv->hDIB)) + { + ErrorF("DeleteObject failed: %s\n", glxWinErrorMessage()); + } + + ((PixmapPtr)glxPriv->base.pDraw)->devPrivate.ptr = glxPriv->pOldBits; + } + + GLWIN_DEBUG_MSG("glxWinDestroyDrawable"); + xfree(glxPriv); +} + +static __GLXdrawable * +glxWinCreateDrawable(__GLXscreen *screen, + DrawablePtr pDraw, + int type, + XID drawId, + __GLXconfig *conf) +{ + __GLXWinDrawable *glxPriv; + + glxPriv = xcalloc(1,sizeof(*glxPriv)); + + if (glxPriv == NULL) + return NULL; + + if(!__glXDrawableInit(&glxPriv->base, screen, pDraw, type, drawId, conf)) { + xfree(glxPriv); + return NULL; + } + + glxPriv->base.destroy = glxWinDrawableDestroy; + glxPriv->base.swapBuffers = glxWinDrawableSwapBuffers; + glxPriv->base.copySubBuffer = glxWinDrawableCopySubBuffer; + // glxPriv->base.waitX what are these for? + // glxPriv->base.waitGL + + GLWIN_DEBUG_MSG("glxWinCreateDrawable %p", glxPriv); + + return &glxPriv->base; +} + +/* ---------------------------------------------------------------------- */ +/* + * Texture functions + */ + +static +int glxWinBindTexImage(__GLXcontext *baseContext, + int buffer, + __GLXdrawable *pixmap) +{ + ErrorF("glxWinBindTexImage: not implemented\n"); + return FALSE; +} + +static +int glxWinReleaseTexImage(__GLXcontext *baseContext, + int buffer, + __GLXdrawable *pixmap) +{ + ErrorF(" glxWinReleaseTexImage: not implemented\n"); + return FALSE; +} + +/* ---------------------------------------------------------------------- */ +/* + * Lazy update context implementation + * + * WGL contexts are created for a specific HDC, so we cannot create the WGL + * context in glxWinCreateContext(), we must defer creation until the context + * is actually used on a specifc drawable which is connected to a native window, + * pbuffer or DIB + * + * The WGL context may be used on other, compatible HDCs, so we don't need to + * recreate it for every new native window + * + * XXX: I wonder why we can't create the WGL context on the screen HDC ? + * Basically we assume all HDCs are compatible at the moment: if they are not + * we are in a muddle, there was some code in the old implementation to attempt + * to transparently migrate a context to a new DC by copying state and sharing + * lists with the old one... + */ + +static void +glxWinSetPixelFormat(__GLXWinContext *gc, HDC hdc, int bppOverride, int drawableTypeOverride) +{ + __GLXscreen *screen = gc->base.pGlxScreen; + glxWinScreen *winScreen = (glxWinScreen *)screen; + + __GLXconfig *config = gc->base.config; + GLXWinConfig *winConfig = (GLXWinConfig *)config; + + GLWIN_DEBUG_MSG("glxWinSetPixelFormat: pixelFormatIndex %d", winConfig->pixelFormatIndex); + + /* + Normally, we can just use the the pixelFormatIndex corresponding + to the fbconfig which has been specified by the client + */ + + if (!((bppOverride && (bppOverride != (config->redBits + config->greenBits + config->blueBits) )) + || ((config->drawableType & drawableTypeOverride) == 0))) + { + if (!SetPixelFormat(hdc, winConfig->pixelFormatIndex, NULL)) + { + ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + + return; + } + + /* + However, in certain special cases this pixel format will be incompatible with the + use we are going to put it to, so we need to re-evaluate the pixel format to use: + + 1) When PFD_DRAW_TO_BITMAP is set, ChoosePixelFormat() always returns a format with + the cColorBits we asked for, so we need to ensure it matches the bpp of the bitmap + + 2) Applications may assume that visuals selected with glXChooseVisual() work with + pixmap drawables (there is no attribute to explicitly query for pixmap drawable + support as there is for glXChooseFBConfig()) + (it's arguable this is an error in the application, but we try to make it work) + + pixmap rendering is always slow for us, so we don't want to choose those visuals + by default, but if the actual drawable type we're trying to select the context + on (drawableTypeOverride) isn't supported by the selected fbConfig, reconsider + and see if we can find a suitable one... + */ + ErrorF("glxWinSetPixelFormat: having second thoughts: cColorbits %d, bppOveride %d; config->drawableType %d, drawableTypeOverride %d\n", + (config->redBits + config->greenBits + config->blueBits), bppOverride, config->drawableType, drawableTypeOverride); + + if (!winScreen->has_WGL_ARB_pixel_format) + { + PIXELFORMATDESCRIPTOR pfd; + int pixelFormat; + + /* convert fbConfig to PFD */ + if (fbConfigToPixelFormat(gc->base.config, &pfd, drawableTypeOverride)) + { + ErrorF("glxWinSetPixelFormat: fbConfigToPixelFormat failed\n"); + return; + } + +#ifdef _DEBUG + if (glxWinDebugSettings.dumpPFD) + pfdOut(&pfd); +#endif + + if (bppOverride) + { + GLWIN_DEBUG_MSG("glxWinSetPixelFormat: Forcing bpp from %d to %d\n", pfd.cColorBits, bppOverride); + pfd.cColorBits = bppOverride; + } + + pixelFormat = ChoosePixelFormat(hdc, &pfd); + if (pixelFormat == 0) + { + ErrorF("ChoosePixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("ChoosePixelFormat: chose pixelFormatIndex %d", pixelFormat); + ErrorF("ChoosePixelFormat: chose pixelFormatIndex %d (rather than %d as originally planned)\n", pixelFormat, winConfig->pixelFormatIndex); + + if (!SetPixelFormat(hdc, pixelFormat, &pfd)) + { + ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + } + else + { + int pixelFormat = fbConfigToPixelFormatIndex(hdc, gc->base.config, drawableTypeOverride, winScreen); + if (pixelFormat == 0) + { + ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("wglChoosePixelFormat: chose pixelFormatIndex %d", pixelFormat); + ErrorF("wglChoosePixelFormat: chose pixelFormatIndex %d (rather than %d as originally planned)\n", pixelFormat, winConfig->pixelFormatIndex); + + if (!SetPixelFormat(hdc, pixelFormat, NULL)) + { + ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + } +} + +static HDC +glxWinMakeDC(__GLXWinContext *gc, __GLXWinDrawable *draw, HWND *hwnd) +{ + HDC hdc = NULL; + *hwnd = NULL; + + if (draw == NULL) + { + GLWIN_TRACE_MSG("No drawable for context %p (native ctx %p)", gc, gc->ctx); + return NULL; + } + + switch (draw->base.type) + { + case GLX_DRAWABLE_WINDOW: + { + WindowPtr pWin; + + pWin = (WindowPtr) draw->base.pDraw; + if (pWin == NULL) + { + GLWIN_TRACE_MSG("for drawable %p, no WindowPtr", pWin); + return NULL; + } + + *hwnd = winGetWindowInfo(pWin); + + if (*hwnd == NULL) + { + ErrorF("No HWND error: %s\n", glxWinErrorMessage()); + return NULL; + } + + hdc = GetDC(*hwnd); + + if (hdc == NULL) + ErrorF("GetDC error: %s: hwnd %x, gc %p, gc->ctx %p ,gc->hwnd %p\n", glxWinErrorMessage(), *hwnd, gc, gc->ctx, gc->hwnd); + + if (gc->hDC) + { + glxWinReleaseDC(gc->hwnd, gc->hDC, draw); + gc->hDC=NULL; + } +#ifdef _DEBUG + if (glxWinDebugSettings.enableTrace) + GLWIN_DEBUG_HWND(*hwnd); + + GLWIN_TRACE_MSG("for context %p (native ctx %p), hWnd changed from %p to %p", gc, gc->ctx, gc->hwnd, *hwnd); +#endif + gc->hwnd = *hwnd; + + /* Check if we need to set the pixelformat */ + { + winWindowPriv(pWin); + if (!pWinPriv->PixelFormatSet) + { + pWinPriv->PixelFormatSet=TRUE; + /* We must select a pixelformat, but SetPixelFormat can only be called once for a window... */ + glxWinSetPixelFormat(gc, hdc, 0, GLX_WINDOW_BIT); + } + } + } + break; + + case GLX_DRAWABLE_PBUFFER: + { + hdc = wglGetPbufferDCARBWrapper(draw->hPbuffer); + + if (hdc == NULL) + ErrorF("GetDC (pbuffer) error: %s\n", glxWinErrorMessage()); + } + break; + + case GLX_DRAWABLE_PIXMAP: + { + hdc = draw->dibDC; +#ifdef _DEBUG + if (glxWinDebugSettings.dumpDC) + GLWIN_DEBUG_MSG("Got PIXMAP HDC %p for window %p", hdc, *hwnd); +#endif + } + break; + + default: + { + ErrorF("glxWinMakeDC: tried to makeDC for unhandled drawable type %d\n", draw->base.type); + } + } + +#ifdef _DEBUG + if (glxWinDebugSettings.dumpDC) + GLWIN_HDC_DEBUG_MSG("Got HDC %p for window %p", hdc, *hwnd); +#endif + + return hdc; +} + +static void +glxWinReleaseDC(HWND hwnd, HDC hdc,__GLXWinDrawable *draw) +{ + switch (draw->base.type) + { + case GLX_DRAWABLE_WINDOW: + { + ReleaseDC(hwnd, hdc); + } + break; + + case GLX_DRAWABLE_PBUFFER: + { + if (!wglReleasePbufferDCARBWrapper(draw->hPbuffer, hdc)) + { + ErrorF("wglReleasePbufferDCARB error: %s\n", glxWinErrorMessage()); + } + } + break; + + case GLX_DRAWABLE_PIXMAP: + { + // don't release DC, the memory DC lives as long as the bitmap + + // We must ensure that all GDI drawing into the bitmap has completed + // in case we subsequently access the bits from it + GdiFlush(); + } + break; + + default: + { + ErrorF("glxWinReleaseDC: tried to releaseDC for unhandled drawable type %d\n", draw->base.type); + } + } +} + +static void +glxWinDeferredCreateContext(__GLXWinContext *gc, __GLXWinDrawable *draw) +{ + HWND hwnd; + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attach context %p to drawable %p", gc, draw); + + switch (draw->base.type) + { + case GLX_DRAWABLE_WINDOW: + { + WindowPtr pWin = (WindowPtr) draw->base.pDraw; + + if (!(gc->base.config->drawableType & GLX_WINDOW_BIT)) + { + ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_WINDOW_BIT to a GLX_DRAWABLE_WINDOW drawable\n"); + } + + if (pWin == NULL) + { + GLWIN_DEBUG_MSG("Deferring until X window is created"); + return; + } + + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: pWin %p", pWin); + + if (winGetWindowInfo(pWin) == NULL) + { + GLWIN_DEBUG_MSG("Deferring until native window is created"); + return; + } + } + break; + + case GLX_DRAWABLE_PBUFFER: + { + if (draw->hPbuffer == NULL) + { + __GLXscreen *screen; + glxWinScreen *winScreen; + int pixelFormat; + // XXX: which DC are supposed to use??? + HDC screenDC = GetDC(NULL); + + if (!(gc->base.config->drawableType & GLX_PBUFFER_BIT)) + { + ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_PBUFFER_BIT to a GLX_DRAWABLE_PBUFFER drawable\n"); + } + + screen = gc->base.pGlxScreen; + winScreen = (glxWinScreen *)screen; + + pixelFormat = fbConfigToPixelFormatIndex(screenDC, gc->base.config, GLX_DRAWABLE_PBUFFER, winScreen); + if (pixelFormat == 0) + { + ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + + draw->hPbuffer = wglCreatePbufferARBWrapper(screenDC, pixelFormat, draw->base.pDraw->width, draw->base.pDraw->height, NULL); + ReleaseDC(NULL, screenDC); + + if (draw->hPbuffer == NULL) + { + ErrorF("wglCreatePbufferARBWrapper error: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: pBuffer %p created for drawable %p", draw->hPbuffer, draw); + } + } + break; + + case GLX_DRAWABLE_PIXMAP: + { + if (draw->dibDC == NULL) + { + BITMAPINFOHEADER bmpHeader; + void *pBits; + + memset (&bmpHeader, 0, sizeof(BITMAPINFOHEADER)); + bmpHeader.biSize = sizeof(BITMAPINFOHEADER); + bmpHeader.biWidth = draw->base.pDraw->width; + bmpHeader.biHeight = draw->base.pDraw->height; + bmpHeader.biPlanes = 1; + bmpHeader.biBitCount = draw->base.pDraw->bitsPerPixel; + bmpHeader.biCompression = BI_RGB; + + if (!(gc->base.config->drawableType & GLX_PIXMAP_BIT)) + { + ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_PIXMAP_BIT to a GLX_DRAWABLE_PIXMAP drawable\n"); + } + + draw->dibDC = CreateCompatibleDC(NULL); + if (draw->dibDC == NULL) + { + ErrorF("CreateCompatibleDC error: %s\n", glxWinErrorMessage()); + return; + } + + draw->hDIB = CreateDIBSection(draw->dibDC, (BITMAPINFO *)&bmpHeader, DIB_RGB_COLORS, &pBits, 0, 0); + if (draw->dibDC == NULL) + { + ErrorF("CreateDIBSection error: %s\n", glxWinErrorMessage()); + return; + } + + // XXX: CreateDIBSection insists on allocating the bitmap memory for us, so we're going to + // need some jiggery pokery to point the underlying X Drawable's bitmap at the same set of bits + // so that they can be read with XGetImage as well as glReadPixels, assuming the formats are + // even compatible ... + draw->pOldBits = ((PixmapPtr)draw->base.pDraw)->devPrivate.ptr; + ((PixmapPtr)draw->base.pDraw)->devPrivate.ptr = pBits; + + // Select the DIB into the DC + draw->hOldDIB = SelectObject(draw->dibDC, draw->hDIB); + if (!draw->hOldDIB) + { + ErrorF("SelectObject error: %s\n", glxWinErrorMessage()); + } + + // Set the pixel format of the bitmap + glxWinSetPixelFormat(gc, draw->dibDC, draw->base.pDraw->bitsPerPixel, GLX_PIXMAP_BIT); + + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: DIB bitmap %p created for drawable %p", draw->hDIB, draw); + } + } + break; + + default: + { + ErrorF("glxWinDeferredCreateContext: tried to attach unhandled drawable type %d\n", draw->base.type); + return; + } + } + + gc->hDC = glxWinMakeDC(gc, draw, &hwnd); + gc->ctx = wglCreateContext(gc->hDC); + + if (gc->ctx == NULL) + { + glxWinReleaseDC(hwnd, gc->hDC, draw); + gc->hDC=0; + + ErrorF("wglCreateContext error: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attached context %p to native context %p drawable %p", gc, gc->ctx, draw); + + // if the native context was created successfully, shareLists if needed + if (gc->ctx && gc->shareContext) + { + GLWIN_DEBUG_MSG("glxWinCreateContextReal shareLists with context %p (native ctx %p)", gc->shareContext, gc->shareContext->ctx); + + if (!wglShareLists(gc->shareContext->ctx, gc->ctx)) + { + ErrorF("wglShareLists error: %s\n", glxWinErrorMessage()); + } + } +} + +/* ---------------------------------------------------------------------- */ +/* + * Context functions + */ + + +/* Context manipulation routines should return TRUE on success, FALSE on failure */ +static int +glxWinContextMakeCurrent(__GLXcontext *base) +{ + __GLXWinContext *gc = (__GLXWinContext *)base; + BOOL ret; + __GLXWinDrawable *drawPriv; + +#ifdef _DEBUG + GLWIN_TRACE_MSG("glxWinContextMakeCurrent context %p (native ctx %p)", gc, gc->ctx); + glWinCallDelta(); +#endif + + /* Keep a note of the last active context in the drawable */ + drawPriv = (__GLXWinDrawable *)gc->base.drawPriv; + drawPriv->drawContext = gc; + + if (gc->ctx == NULL) + { + glxWinDeferredCreateContext(gc, drawPriv); + } + + if (gc->ctx == NULL) + { + ErrorF("glxWinContextMakeCurrent: Native context is NULL\n"); + return FALSE; + } + + if ((gc->base.readPriv != NULL) && (gc->base.readPriv != gc->base.drawPriv)) + { + // XXX: should only occur with WGL_ARB_make_current_read + /* + If there is a separate read drawable, create a separate read DC, and + use the wglMakeContextCurrent extension to make the context current drawing + to one DC and reading from the other + */ + gc->hreadDC = glxWinMakeDC(gc, (__GLXWinDrawable *)gc->base.readPriv, &gc->hreadwnd); + if (gc->hreadDC == NULL) + { + ErrorF("glxWinMakeDC failed for readDC\n"); + return FALSE; + } + + ret = wglMakeContextCurrentARBWrapper(gc->hDC, gc->hreadDC, gc->ctx); + if (!ret) + { + ErrorF("wglMakeContextCurrentARBWrapper error: %s\n", glxWinErrorMessage()); + } + } + else + { + /* Otherwise, just use wglMakeCurrent */ + if (!gc->hDC) + { + /* It probably has been release by loseCurrent, so create it again */ + gc->hDC = glxWinMakeDC(gc, drawPriv, &gc->hwnd); + } + ret = wglMakeCurrent(gc->hDC, gc->ctx); + if (!ret) + { + DWORD ErrorCode=GetLastError(); + ErrorF("wglMakeCurrent error: %x dc %p ctx %p\n", ErrorCode,gc->hDC,gc->ctx); + if (!ErrorCode) + { + ErrorF("Error code was 0, assuming no error.\n"); + ret=TRUE; + } + } + } + + // apparently make current could fail if the context is current in a different thread, + // but that shouldn't be able to happen in the current server... + + return ret; +} + +static int +glxWinContextLoseCurrent(__GLXcontext *base) +{ + BOOL ret=TRUE; + __GLXWinContext *gc = (__GLXWinContext *)base; + +#ifdef _DEBUG + GLWIN_TRACE_MSG("glxWinContextLoseCurrent context %p (native ctx %p)", gc, gc->ctx); + glWinCallDelta(); +#endif + + + if (wglGetCurrentContext()==gc->ctx) + { + /* Only do this when we are sure we are currently the active, otherwise we are deactivating the wrong one (this is happening!!!) */ + ret = wglMakeCurrent(NULL, NULL); + if (!ret) + ErrorF("glxWinContextLoseCurrent error: %s\n", glxWinErrorMessage()); + } + else + { + return FALSE; + } + + /* Since drawPriv is going to be set to zero in the context, we have to release the DC to */ + if (gc->hDC && gc->base.drawPriv) glxWinReleaseDC(gc->hwnd, gc->hDC, (__GLXWinDrawable *)gc->base.drawPriv); + if (gc->hreadDC && gc->base.readPriv) glxWinReleaseDC(gc->hreadwnd, gc->hreadDC, (__GLXWinDrawable *)gc->base.readPriv); + gc->hDC=NULL; + gc->hreadDC=NULL; + + base->isCurrent=FALSE; /* It looks like glx is not doing this */ + + return ret; +} + +static int +glxWinContextCopy(__GLXcontext *dst_base, __GLXcontext *src_base, unsigned long mask) +{ + __GLXWinContext *dst = (__GLXWinContext *)dst_base; + __GLXWinContext *src = (__GLXWinContext *)src_base; + BOOL ret; + + GLWIN_DEBUG_MSG("glxWinContextCopy"); + + ret = wglCopyContext(src->ctx, dst->ctx, mask); + if (!ret) + { + ErrorF("wglCopyContext error: %s\n", glxWinErrorMessage()); + } + + return ret; +} + +static int +glxWinContextForceCurrent(__GLXcontext *base) +{ + /* wglMakeCurrent always flushes the previous context, so this is equivalent to glxWinContextMakeCurrent */ + return glxWinContextMakeCurrent(base); +} + +static void +glxWinContextDestroy(__GLXcontext *base) +{ + __GLXWinContext *gc = (__GLXWinContext *)base; + + if (gc != NULL) + { + GLWIN_DEBUG_MSG("GLXcontext %p destroyed (native ctx %p)", base, gc->ctx); + + if (gc->ctx) + { + BOOL ret; + /* It's bad style to delete the context while it's still current */ + if (wglGetCurrentContext() == gc->ctx) + { + wglMakeCurrent(NULL, NULL); + } + + ret = wglDeleteContext(gc->ctx); + if (!ret) + ErrorF("wglDeleteContext error: %s\n", glxWinErrorMessage()); + if (gc->base.drawPriv && gc->hDC) glxWinReleaseDC(gc->hwnd, gc->hDC, (__GLXWinDrawable *)gc->base.drawPriv); + if (gc->base.readPriv && gc->hreadDC) glxWinReleaseDC(gc->hreadwnd, gc->hreadDC, (__GLXWinDrawable *)gc->base.readPriv); + gc->hDC=NULL; + gc->hreadDC=NULL; + gc->ctx = NULL; + } + + xfree(gc); + } +} + +static __GLXcontext * +glxWinCreateContext(__GLXscreen *screen, + __GLXconfig *modes, + __GLXcontext *baseShareContext) +{ + __GLXWinContext *context; + __GLXWinContext *shareContext = (__GLXWinContext *)baseShareContext; + + static __GLXtextureFromPixmap glxWinTextureFromPixmap = + { + glxWinBindTexImage, + glxWinReleaseTexImage + }; + + context = (__GLXWinContext *)xcalloc(1, sizeof(__GLXWinContext)); + + if (!context) + return NULL; + + memset(context, 0, sizeof *context); + context->base.destroy = glxWinContextDestroy; + context->base.makeCurrent = glxWinContextMakeCurrent; + context->base.loseCurrent = glxWinContextLoseCurrent; + context->base.copy = glxWinContextCopy; + context->base.forceCurrent = glxWinContextForceCurrent; + context->base.textureFromPixmap = &glxWinTextureFromPixmap; + context->base.config = modes; + context->base.pGlxScreen = screen; + + // actual native GL context creation is deferred until attach() + //context->ctx = NULL; already done with memset + context->shareContext = shareContext; + + glWinSetupDispatchTable(); + + GLWIN_DEBUG_MSG("GLXcontext %p created", context); + + return &(context->base); +} + +/* ---------------------------------------------------------------------- */ +/* + * Utility functions + */ + +static int +fbConfigToPixelFormat(__GLXconfig *mode, PIXELFORMATDESCRIPTOR *pfdret, int drawableTypeOverride) +{ + PIXELFORMATDESCRIPTOR pfd = { + sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */ + 1, /* version number */ + 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 */ + 32, /* 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 */ + }; + + if ((mode->drawableType | drawableTypeOverride) & GLX_WINDOW_BIT) + pfd.dwFlags |= PFD_DRAW_TO_WINDOW; /* support window */ + + if ((mode->drawableType | drawableTypeOverride) & GLX_PIXMAP_BIT) + pfd.dwFlags |= (PFD_DRAW_TO_BITMAP | PFD_SUPPORT_GDI); /* supports software rendering to bitmap */ + + if (mode->stereoMode) { + pfd.dwFlags |= PFD_STEREO; + } + if (mode->doubleBufferMode) { + pfd.dwFlags |= PFD_DOUBLEBUFFER; + } + + pfd.iPixelType = PFD_TYPE_RGBA; + pfd.cColorBits = mode->redBits + mode->greenBits + mode->blueBits; + pfd.cRedBits = mode->redBits; + pfd.cRedShift = 0; /* FIXME */ + pfd.cGreenBits = mode->greenBits; + pfd.cGreenShift = 0; /* FIXME */ + pfd.cBlueBits = mode->blueBits; + pfd.cBlueShift = 0; /* FIXME */ + pfd.cAlphaBits = mode->alphaBits; + pfd.cAlphaShift = 0; /* FIXME */ + + pfd.cAccumBits = mode->accumRedBits + mode->accumGreenBits + mode->accumBlueBits + mode->accumAlphaBits; + pfd.cAccumRedBits = mode->accumRedBits; + pfd.cAccumGreenBits = mode->accumGreenBits; + pfd.cAccumBlueBits = mode->accumBlueBits; + pfd.cAccumAlphaBits = mode->accumAlphaBits; + + pfd.cDepthBits = mode->depthBits; + pfd.cStencilBits = mode->stencilBits; + pfd.cAuxBuffers = mode->numAuxBuffers; + + /* mode->level ? */ + /* mode->pixmapMode ? */ + + *pfdret = pfd; + + return 0; +} + +#define SET_ATTR_VALUE(attr, value) { attribList[i++] = attr; attribList[i++] = value; assert(i < NUM_ELEMENTS(attribList)); } + +static int +fbConfigToPixelFormatIndex(HDC hdc, __GLXconfig *mode, int drawableTypeOverride, glxWinScreen *winScreen) +{ + UINT numFormats; + unsigned int i = 0; + + /* convert fbConfig to attr-value list */ + int attribList[60]; + + SET_ATTR_VALUE(WGL_SUPPORT_OPENGL_ARB, TRUE); + SET_ATTR_VALUE(WGL_PIXEL_TYPE_ARB, (mode->visualType == GLX_TRUE_COLOR) ? WGL_TYPE_RGBA_ARB : WGL_TYPE_COLORINDEX_ARB); + SET_ATTR_VALUE(WGL_COLOR_BITS_ARB, (mode->visualType == GLX_TRUE_COLOR) ? mode->rgbBits : mode->indexBits); + SET_ATTR_VALUE(WGL_RED_BITS_ARB, mode->redBits); + SET_ATTR_VALUE(WGL_GREEN_BITS_ARB, mode->greenBits); + SET_ATTR_VALUE(WGL_BLUE_BITS_ARB, mode->blueBits); + SET_ATTR_VALUE(WGL_ALPHA_BITS_ARB, mode->alphaBits); + SET_ATTR_VALUE(WGL_ACCUM_RED_BITS_ARB, mode->accumRedBits); + SET_ATTR_VALUE(WGL_ACCUM_GREEN_BITS_ARB, mode->accumGreenBits); + SET_ATTR_VALUE(WGL_ACCUM_BLUE_BITS_ARB, mode->accumBlueBits); + SET_ATTR_VALUE(WGL_ACCUM_ALPHA_BITS_ARB, mode->accumAlphaBits); + SET_ATTR_VALUE(WGL_DEPTH_BITS_ARB, mode->depthBits); + SET_ATTR_VALUE(WGL_STENCIL_BITS_ARB, mode->stencilBits); + SET_ATTR_VALUE(WGL_AUX_BUFFERS_ARB, mode->numAuxBuffers); + + if (mode->doubleBufferMode) + SET_ATTR_VALUE(WGL_DOUBLE_BUFFER_ARB, TRUE); + + if (mode->stereoMode) + SET_ATTR_VALUE(WGL_STEREO_ARB, TRUE); + + // Some attributes are only added to the list if the value requested is not 'don't care', as exactly matching that is daft.. + if (mode->swapMethod == GLX_SWAP_EXCHANGE_OML) + SET_ATTR_VALUE(WGL_SWAP_METHOD_ARB, WGL_SWAP_EXCHANGE_ARB); + + if (mode->swapMethod == GLX_SWAP_COPY_OML) + SET_ATTR_VALUE(WGL_SWAP_COPY_ARB, TRUE); + + // XXX: this should probably be the other way around, but that messes up drawableTypeOverride + if (mode->visualRating == GLX_SLOW_VISUAL_EXT) + SET_ATTR_VALUE(WGL_ACCELERATION_ARB, WGL_NO_ACCELERATION_ARB); + + // must support all the drawable types the mode supports + if ((mode->drawableType | drawableTypeOverride) & GLX_WINDOW_BIT) + SET_ATTR_VALUE(WGL_DRAW_TO_WINDOW_ARB,TRUE); + + // XXX: this is a horrible hacky heuristic, in fact this whole drawableTypeOverride thing is a bad idea + // try to avoid asking for formats which don't exist (by not asking for all when adjusting the config to include the drawableTypeOverride) + if (drawableTypeOverride == GLX_WINDOW_BIT) + { + if (mode->drawableType & GLX_PIXMAP_BIT) + SET_ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, TRUE); + + if (mode->drawableType & GLX_PBUFFER_BIT) + if (winScreen->has_WGL_ARB_pbuffer) + SET_ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, TRUE); + } + else + { + if (drawableTypeOverride & GLX_PIXMAP_BIT) + SET_ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, TRUE); + + if (drawableTypeOverride & GLX_PBUFFER_BIT) + if (winScreen->has_WGL_ARB_pbuffer) + SET_ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, TRUE); + } + + SET_ATTR_VALUE(0, 0); // terminator + + /* choose the first match */ + { + int pixelFormatIndex; + + if (!wglChoosePixelFormatARBWrapper(hdc, attribList, NULL, 1, &pixelFormatIndex, &numFormats)) + { + ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); + } + else + { + if (numFormats > 0) + { + GLWIN_DEBUG_MSG("wglChoosePixelFormat: chose pixelFormatIndex %d)", pixelFormatIndex); + return pixelFormatIndex; + } + else + ErrorF("wglChoosePixelFormat couldn't decide\n"); + } + } + + return 0; +} + +/* ---------------------------------------------------------------------- */ + +#define BITS_AND_SHIFT_TO_MASK(bits,mask) (((1<<(bits))-1) << (mask)) + +// +// Create the GLXconfigs using DescribePixelFormat() +// +static void +glxWinCreateConfigs(HDC hdc, glxWinScreen *screen) +{ + GLXWinConfig *c, *result, *prev = NULL; + int numConfigs = 0; + int i = 0; + int n = 0; + PIXELFORMATDESCRIPTOR pfd; + + GLWIN_DEBUG_MSG("glxWinCreateConfigs"); + + screen->base.numFBConfigs = 0; + screen->base.fbconfigs = NULL; + + // get the number of pixelformats + numConfigs = DescribePixelFormat(hdc, 1, sizeof(PIXELFORMATDESCRIPTOR), NULL); + GLWIN_DEBUG_MSG("DescribePixelFormat says %d possible pixel formats", numConfigs); + + /* alloc */ + result = xalloc(sizeof(GLXWinConfig) * numConfigs); + + if (NULL == result) + { + return; + } + + memset(result, 0, sizeof(GLXWinConfig) * numConfigs); + n = 0; + + /* fill in configs */ + for (i = 0; i < numConfigs; i++) + { + int rc; + + c = &(result[i]); + c->base.next = NULL; + c->pixelFormatIndex = i+1; + + rc = DescribePixelFormat(hdc, i+1, sizeof(PIXELFORMATDESCRIPTOR), &pfd); + + if (!rc) + { + ErrorF("DescribePixelFormat failed for index %d, error %s\n", i+1, glxWinErrorMessage()); + break; + } + +#ifdef _DEBUG + if (glxWinDebugSettings.dumpPFD) + pfdOut(&pfd); +#endif + + if (!(pfd.dwFlags & (PFD_DRAW_TO_WINDOW | PFD_DRAW_TO_BITMAP)) || !(pfd.dwFlags & PFD_SUPPORT_OPENGL)) + { + GLWIN_DEBUG_MSG("pixelFormat %d has unsuitable flags 0x%08lx, skipping", i+1, pfd.dwFlags); + continue; + } + + c->base.doubleBufferMode = (pfd.dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE; + c->base.stereoMode = (pfd.dwFlags & PFD_STEREO) ? GL_TRUE : GL_FALSE; + + c->base.redBits = pfd.cRedBits; + c->base.greenBits = pfd.cGreenBits; + c->base.blueBits = pfd.cBlueBits; + c->base.alphaBits = pfd.cAlphaBits; + + c->base.redMask = BITS_AND_SHIFT_TO_MASK(pfd.cRedBits, pfd.cRedShift); + c->base.greenMask = BITS_AND_SHIFT_TO_MASK(pfd.cGreenBits, pfd.cGreenShift); + c->base.blueMask = BITS_AND_SHIFT_TO_MASK(pfd.cBlueBits, pfd.cBlueShift); + c->base.alphaMask = BITS_AND_SHIFT_TO_MASK(pfd.cAlphaBits, pfd.cAlphaShift); + + c->base.rgbBits = pfd.cColorBits; + + if (pfd.iPixelType == PFD_TYPE_COLORINDEX) + { + c->base.indexBits = pfd.cColorBits; + } + else + { + c->base.indexBits = 0; + } + + c->base.accumRedBits = pfd.cAccumRedBits; + c->base.accumGreenBits = pfd.cAccumGreenBits; + c->base.accumBlueBits = pfd.cAccumBlueBits; + c->base.accumAlphaBits = pfd.cAccumAlphaBits; + // pfd.cAccumBits; + + c->base.depthBits = pfd.cDepthBits; + c->base.stencilBits = pfd.cStencilBits; + c->base.numAuxBuffers = pfd.cAuxBuffers; + + // pfd.iLayerType; // ignored + c->base.level = 0; + // pfd.dwLayerMask; // ignored + // pfd.dwDamageMask; // ignored + + c->base.pixmapMode = 0; + c->base.visualID = -1; // will be set by __glXScreenInit() + + /* EXT_visual_rating / GLX 1.2 */ + if (pfd.dwFlags & PFD_GENERIC_FORMAT) + { + c->base.visualRating = GLX_SLOW_VISUAL_EXT; + } + else + { + // PFD_GENERIC_ACCELERATED is not considered, so this may be MCD or ICD acclerated... + c->base.visualRating = GLX_NONE_EXT; + } + + /* EXT_visual_info / GLX 1.2 */ + if (pfd.iPixelType == PFD_TYPE_COLORINDEX) + { + c->base.visualType = GLX_STATIC_COLOR; + } + else + { + c->base.visualType = GLX_TRUE_COLOR; + } + + // pfd.dwVisibleMask; ??? + c->base.transparentPixel = GLX_NONE; + c->base.transparentRed = GLX_NONE; + c->base.transparentGreen = GLX_NONE; + c->base.transparentBlue = GLX_NONE; + c->base.transparentAlpha = GLX_NONE; + c->base.transparentIndex = GLX_NONE; + + /* ARB_multisample / SGIS_multisample */ + c->base.sampleBuffers = 0; + c->base.samples = 0; + + /* SGIX_fbconfig / GLX 1.3 */ + c->base.drawableType = (((pfd.dwFlags & PFD_DRAW_TO_WINDOW) ? GLX_WINDOW_BIT : 0) + | ((pfd.dwFlags & PFD_DRAW_TO_BITMAP) ? GLX_PIXMAP_BIT : 0)); + + if (pfd.iPixelType == PFD_TYPE_COLORINDEX) + { + c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT; + } + else + { + c->base.renderType = GLX_RGBA_BIT; + } + + c->base.xRenderable = GL_TRUE; + c->base.fbconfigID = -1; // will be set by __glXScreenInit() + + /* SGIX_pbuffer / GLX 1.3 */ + // XXX: How can we find these values out ??? + c->base.maxPbufferWidth = -1; + c->base.maxPbufferHeight = -1; + c->base.maxPbufferPixels = -1; + c->base.optimalPbufferWidth = 0; // there is no optimal value + c->base.optimalPbufferHeight = 0; + + /* SGIX_visual_select_group */ + // arrange for visuals with the best acceleration to be preferred in selection + switch (pfd.dwFlags & (PFD_GENERIC_FORMAT | PFD_GENERIC_ACCELERATED)) + { + case 0: + c->base.visualSelectGroup = 2; + break; + + case PFD_GENERIC_ACCELERATED: + c->base.visualSelectGroup = 1; + break; + + case PFD_GENERIC_FORMAT: + c->base.visualSelectGroup = 0; + break; + + default: + ; + // "can't happen" + } + + /* OML_swap_method */ + if (pfd.dwFlags & PFD_SWAP_EXCHANGE) + c->base.swapMethod = GLX_SWAP_EXCHANGE_OML; + else if (pfd.dwFlags & PFD_SWAP_COPY) + c->base.swapMethod = GLX_SWAP_COPY_OML; + else + c->base.swapMethod = GLX_SWAP_UNDEFINED_OML; + + /* EXT_import_context */ + c->base.screen = screen->base.pScreen->myNum; + + /* EXT_texture_from_pixmap */ + c->base.bindToTextureRgb = -1; + c->base.bindToTextureRgba = -1; + c->base.bindToMipmapTexture = -1; + c->base.bindToTextureTargets = -1; + c->base.yInverted = -1; + + n++; + + // update previous config to point to this config + if (prev) + prev->base.next = &(c->base); + + prev = c; + } + + GLWIN_DEBUG_MSG("found %d pixelFormats suitable for conversion to fbConfigs", n); + + screen->base.numFBConfigs = n; + screen->base.fbconfigs = &(result->base); +} + +// helper function to access an attribute value from an attribute value array by attribute +static +int getAttrValue(const int attrs[], int values[], unsigned int num, int attr, int fallback) +{ + unsigned int i; + for (i = 0; i < num; i++) + { + if (attrs[i] == attr) + { + GLWIN_TRACE_MSG("getAttrValue attr 0x%x, value %d", attr, values[i]); + return values[i]; + } + } + + ErrorF("getAttrValue failed to find attr 0x%x, using default value %d\n", attr, fallback); + return fallback; +} + +// +// Create the GLXconfigs using wglGetPixelFormatAttribfvARB() extension +// +static void +glxWinCreateConfigsExt(HDC hdc, glxWinScreen *screen) +{ + GLXWinConfig *c, *result, *prev = NULL; + int i = 0; + int n = 0; + + const int attr = WGL_NUMBER_PIXEL_FORMATS_ARB; + int numConfigs; + + int attrs[50]; + unsigned int num_attrs = 0; + + GLWIN_DEBUG_MSG("glxWinCreateConfigsExt"); + + screen->base.numFBConfigs = 0; + screen->base.fbconfigs = NULL; + + if (!wglGetPixelFormatAttribivARBWrapper(hdc, 0, 0, 1, &attr, &numConfigs)) + { + ErrorF("wglGetPixelFormatAttribivARB failed for WGL_NUMBER_PIXEL_FORMATS_ARB: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("wglGetPixelFormatAttribivARB says %d possible pixel formats", numConfigs); + + /* alloc */ + result = xalloc(sizeof(GLXWinConfig) * numConfigs); + + if (NULL == result) + { + return; + } + + memset(result, 0, sizeof(GLXWinConfig) * numConfigs); + n = 0; + +#define ADD_ATTR(a) { attrs[num_attrs++] = a; assert(num_attrs < NUM_ELEMENTS(attrs)); } + + ADD_ATTR(WGL_DRAW_TO_WINDOW_ARB); + ADD_ATTR(WGL_DRAW_TO_BITMAP_ARB); + ADD_ATTR(WGL_ACCELERATION_ARB); + ADD_ATTR(WGL_SWAP_LAYER_BUFFERS_ARB); + ADD_ATTR(WGL_NUMBER_OVERLAYS_ARB); + ADD_ATTR(WGL_NUMBER_UNDERLAYS_ARB); + ADD_ATTR(WGL_TRANSPARENT_ARB); + ADD_ATTR(WGL_TRANSPARENT_RED_VALUE_ARB); + ADD_ATTR(WGL_TRANSPARENT_GREEN_VALUE_ARB); + ADD_ATTR(WGL_TRANSPARENT_GREEN_VALUE_ARB); + ADD_ATTR(WGL_TRANSPARENT_ALPHA_VALUE_ARB); + ADD_ATTR(WGL_SUPPORT_OPENGL_ARB); + ADD_ATTR(WGL_DOUBLE_BUFFER_ARB); + ADD_ATTR(WGL_STEREO_ARB); + ADD_ATTR(WGL_PIXEL_TYPE_ARB); + ADD_ATTR(WGL_COLOR_BITS_ARB); + ADD_ATTR(WGL_RED_BITS_ARB); + ADD_ATTR(WGL_RED_SHIFT_ARB); + ADD_ATTR(WGL_GREEN_BITS_ARB); + ADD_ATTR(WGL_GREEN_SHIFT_ARB); + ADD_ATTR(WGL_BLUE_BITS_ARB); + ADD_ATTR(WGL_BLUE_SHIFT_ARB); + ADD_ATTR(WGL_ALPHA_BITS_ARB); + ADD_ATTR(WGL_ALPHA_SHIFT_ARB); + ADD_ATTR(WGL_ACCUM_RED_BITS_ARB); + ADD_ATTR(WGL_ACCUM_GREEN_BITS_ARB); + ADD_ATTR(WGL_ACCUM_BLUE_BITS_ARB); + ADD_ATTR(WGL_ACCUM_ALPHA_BITS_ARB); + ADD_ATTR(WGL_DEPTH_BITS_ARB); + ADD_ATTR(WGL_STENCIL_BITS_ARB); + ADD_ATTR(WGL_AUX_BUFFERS_ARB); + ADD_ATTR(WGL_SWAP_METHOD_ARB); + + if (screen->has_WGL_ARB_multisample) + { + // we may not query these attrs if WGL_ARB_multisample is not offered + ADD_ATTR(WGL_SAMPLE_BUFFERS_ARB); + ADD_ATTR(WGL_SAMPLES_ARB); + } + + if (screen->has_WGL_ARB_render_texture) + { + // we may not query these attrs if WGL_ARB_render_texture is not offered + ADD_ATTR(WGL_BIND_TO_TEXTURE_RGB_ARB); + ADD_ATTR(WGL_BIND_TO_TEXTURE_RGBA_ARB); + } + + if (screen->has_WGL_ARB_pbuffer) + { + // we may not query these attrs if WGL_ARB_pbuffer is not offered + ADD_ATTR(WGL_DRAW_TO_PBUFFER_ARB); + ADD_ATTR(WGL_MAX_PBUFFER_PIXELS_ARB); + ADD_ATTR(WGL_MAX_PBUFFER_WIDTH_ARB); + ADD_ATTR(WGL_MAX_PBUFFER_HEIGHT_ARB); + } + + /* fill in configs */ + for (i = 0; i < numConfigs; i++) + { + int sizevalues=num_attrs*sizeof(int); + int *values=(int*)_alloca(sizevalues); + + memset(values,0,sizevalues); + + c = &(result[i]); + c->base.next = NULL; + c->pixelFormatIndex = i+1; + + if (!wglGetPixelFormatAttribivARBWrapper(hdc, i+1, 0, num_attrs, attrs, values)) + { + ErrorF("wglGetPixelFormatAttribivARB failed for index %d, error %s\n", i+1, glxWinErrorMessage()); + break; + } + +#define ATTR_VALUE(a, d) getAttrValue(attrs, values, num_attrs, (a), (d)) + + if (!ATTR_VALUE(WGL_SUPPORT_OPENGL_ARB, 0)) + { + GLWIN_DEBUG_MSG("pixelFormat %d isn't WGL_SUPPORT_OPENGL_ARB, skipping", i+1); + continue; + } + + c->base.doubleBufferMode = ATTR_VALUE(WGL_DOUBLE_BUFFER_ARB, 0) ? GL_TRUE : GL_FALSE; + c->base.stereoMode = ATTR_VALUE(WGL_STEREO_ARB, 0) ? GL_TRUE : GL_FALSE; + + c->base.redBits = ATTR_VALUE(WGL_RED_BITS_ARB, 0); + c->base.greenBits = ATTR_VALUE(WGL_GREEN_BITS_ARB, 0); + c->base.blueBits = ATTR_VALUE(WGL_BLUE_BITS_ARB, 0); + c->base.alphaBits = ATTR_VALUE(WGL_ALPHA_BITS_ARB, 0); + + c->base.redMask = BITS_AND_SHIFT_TO_MASK(c->base.redBits, ATTR_VALUE(WGL_RED_SHIFT_ARB, 0)); + c->base.greenMask = BITS_AND_SHIFT_TO_MASK(c->base.greenBits, ATTR_VALUE(WGL_GREEN_SHIFT_ARB, 0)); + c->base.blueMask = BITS_AND_SHIFT_TO_MASK(c->base.blueBits, ATTR_VALUE(WGL_BLUE_SHIFT_ARB, 0)); + c->base.alphaMask = BITS_AND_SHIFT_TO_MASK(c->base.alphaBits, ATTR_VALUE(WGL_ALPHA_SHIFT_ARB, 0)); + + switch (ATTR_VALUE(WGL_PIXEL_TYPE_ARB, 0)) + { + case WGL_TYPE_COLORINDEX_ARB: + c->base.indexBits = ATTR_VALUE(WGL_COLOR_BITS_ARB, 0); + c->base.rgbBits = 0; + c->base.visualType = GLX_STATIC_COLOR; + break; + + case WGL_TYPE_RGBA_FLOAT_ARB: + GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_RGBA_FLOAT_ARB, skipping", i+1); + continue; + + case WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT: + GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT, skipping", i+1); + continue; + + case WGL_TYPE_RGBA_ARB: + c->base.indexBits = 0; + c->base.rgbBits = ATTR_VALUE(WGL_COLOR_BITS_ARB, 0); + c->base.visualType = GLX_TRUE_COLOR; + break; + + default: + ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_PIXEL_TYPE_ARB\n", ATTR_VALUE(WGL_PIXEL_TYPE_ARB, 0)); + continue; + } + + c->base.accumRedBits = ATTR_VALUE(WGL_ACCUM_RED_BITS_ARB, 0); + c->base.accumGreenBits = ATTR_VALUE(WGL_ACCUM_GREEN_BITS_ARB, 0); + c->base.accumBlueBits = ATTR_VALUE(WGL_ACCUM_BLUE_BITS_ARB, 0); + c->base.accumAlphaBits = ATTR_VALUE(WGL_ACCUM_ALPHA_BITS_ARB, 0); + + c->base.depthBits = ATTR_VALUE(WGL_DEPTH_BITS_ARB, 0); + c->base.stencilBits = ATTR_VALUE(WGL_STENCIL_BITS_ARB, 0); + c->base.numAuxBuffers = ATTR_VALUE(WGL_AUX_BUFFERS_ARB, 0); + + { + int layers = ATTR_VALUE(WGL_NUMBER_OVERLAYS_ARB,0) + ATTR_VALUE(WGL_NUMBER_UNDERLAYS_ARB, 0); + + if (layers > 0) + { + ErrorF("pixelFormat %d: has %d overlay, %d underlays which aren't currently handled", i, ATTR_VALUE(WGL_NUMBER_OVERLAYS_ARB,0), ATTR_VALUE(WGL_NUMBER_UNDERLAYS_ARB, 0)); + // XXX: need to iterate over layers? + } + } + c->base.level = 0; + + c->base.pixmapMode = 0; // ??? + c->base.visualID = -1; // will be set by __glXScreenInit() + + /* EXT_visual_rating / GLX 1.2 */ + switch (ATTR_VALUE(WGL_ACCELERATION_ARB, 0)) + { + default: + ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_ACCELERATION_ARB\n", ATTR_VALUE(WGL_ACCELERATION_ARB, 0)); + + case WGL_NO_ACCELERATION_ARB: + c->base.visualRating = GLX_SLOW_VISUAL_EXT; + break; + + case WGL_GENERIC_ACCELERATION_ARB: + case WGL_FULL_ACCELERATION_ARB: + c->base.visualRating = GLX_NONE_EXT; + break; + } + + /* EXT_visual_info / GLX 1.2 */ + // c->base.visualType is set above + if (ATTR_VALUE(WGL_TRANSPARENT_ARB, 0)) + { + c->base.transparentPixel = (c->base.visualType == GLX_TRUE_COLOR) ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT; + c->base.transparentRed = ATTR_VALUE(WGL_TRANSPARENT_RED_VALUE_ARB, 0); + c->base.transparentGreen = ATTR_VALUE(WGL_TRANSPARENT_GREEN_VALUE_ARB, 0); + c->base.transparentBlue = ATTR_VALUE(WGL_TRANSPARENT_BLUE_VALUE_ARB, 0); + c->base.transparentAlpha = ATTR_VALUE(WGL_TRANSPARENT_ALPHA_VALUE_ARB, 0); + c->base.transparentIndex = ATTR_VALUE(WGL_TRANSPARENT_INDEX_VALUE_ARB, 0); + } + else + { + c->base.transparentPixel = GLX_NONE_EXT; + c->base.transparentRed = GLX_NONE; + c->base.transparentGreen = GLX_NONE; + c->base.transparentBlue = GLX_NONE; + c->base.transparentAlpha = GLX_NONE; + c->base.transparentIndex = GLX_NONE; + } + + /* ARB_multisample / SGIS_multisample */ + if (screen->has_WGL_ARB_multisample) + { + c->base.sampleBuffers = ATTR_VALUE(WGL_SAMPLE_BUFFERS_ARB, 0); + c->base.samples = ATTR_VALUE(WGL_SAMPLES_ARB, 0); + } + else + { + c->base.sampleBuffers = 0; + c->base.samples = 0; + } + + /* SGIX_fbconfig / GLX 1.3 */ + c->base.drawableType = ((ATTR_VALUE(WGL_DRAW_TO_WINDOW_ARB, 0) ? GLX_WINDOW_BIT : 0) + | (ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, 0) ? GLX_PIXMAP_BIT : 0) + | (ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, 0) ? GLX_PBUFFER_BIT : 0)); + + /* + Assume OpenGL RGBA rendering is available on all visuals + (it is specified to render to red component in single-channel visuals, + if supported, but there doesn't seem to be any mechanism to check if it + is supported) + + Color index rendering is only supported on single-channel visuals + */ + if (c->base.visualType == GLX_STATIC_COLOR) + { + c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT; + } + else + { + c->base.renderType = GLX_RGBA_BIT; + } + + c->base.xRenderable = GL_TRUE; + c->base.fbconfigID = -1; // will be set by __glXScreenInit() + + /* SGIX_pbuffer / GLX 1.3 */ + if (screen->has_WGL_ARB_pbuffer) + { + c->base.maxPbufferWidth = ATTR_VALUE(WGL_MAX_PBUFFER_WIDTH_ARB, -1); + c->base.maxPbufferHeight = ATTR_VALUE(WGL_MAX_PBUFFER_HEIGHT_ARB, -1); + c->base.maxPbufferPixels = ATTR_VALUE(WGL_MAX_PBUFFER_PIXELS_ARB, -1); + } + else + { + c->base.maxPbufferWidth = -1; + c->base.maxPbufferHeight = -1; + c->base.maxPbufferPixels = -1; + } + c->base.optimalPbufferWidth = 0; // there is no optimal value + c->base.optimalPbufferHeight = 0; + + /* SGIX_visual_select_group */ + // arrange for visuals with the best acceleration to be preferred in selection + switch (ATTR_VALUE(WGL_ACCELERATION_ARB, 0)) + { + case WGL_FULL_ACCELERATION_ARB: + c->base.visualSelectGroup = 2; + break; + + case WGL_GENERIC_ACCELERATION_ARB: + c->base.visualSelectGroup = 1; + break; + + default: + case WGL_NO_ACCELERATION_ARB: + c->base.visualSelectGroup = 0; + break; + } + + /* OML_swap_method */ + switch (ATTR_VALUE(WGL_SWAP_METHOD_ARB, 0)) + { + case WGL_SWAP_EXCHANGE_ARB: + c->base.swapMethod = GLX_SWAP_EXCHANGE_OML; + break; + + case WGL_SWAP_COPY_ARB: + c->base.swapMethod = GLX_SWAP_COPY_OML; + break; + + default: + ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_SWAP_METHOD_ARB\n", ATTR_VALUE(WGL_SWAP_METHOD_ARB, 0)); + + case WGL_SWAP_UNDEFINED_ARB: + c->base.swapMethod = GLX_SWAP_UNDEFINED_OML; + } + + /* EXT_import_context */ + c->base.screen = screen->base.pScreen->myNum; + + /* EXT_texture_from_pixmap */ + /* + Mesa's DRI configs always have bindToTextureRgb/Rgba TRUE (see driCreateConfigs(), so setting + bindToTextureRgb/bindToTextureRgba to FALSE means that swrast can't find any fbConfigs to use, + so setting these to 0, even if we know bindToTexture isn't available, isn't a good idea... + */ + if (screen->has_WGL_ARB_render_texture) + { + c->base.bindToTextureRgb = ATTR_VALUE(WGL_BIND_TO_TEXTURE_RGB_ARB, -1); + c->base.bindToTextureRgba = ATTR_VALUE(WGL_BIND_TO_TEXTURE_RGBA_ARB, -1); + } + else + { + c->base.bindToTextureRgb = -1; + c->base.bindToTextureRgba = -1; + } + c->base.bindToMipmapTexture = -1; + c->base.bindToTextureTargets = GLX_TEXTURE_1D_BIT_EXT | GLX_TEXTURE_2D_BIT_EXT | GLX_TEXTURE_RECTANGLE_BIT_EXT; + c->base.yInverted = -1; + + n++; + + // update previous config to point to this config + if (prev) + prev->base.next = &(c->base); + + prev = c; + } + + screen->base.numFBConfigs = n; + screen->base.fbconfigs = &(result->base); +} diff --git a/xorg-server/hw/xwin/glx/winpriv.c b/xorg-server/hw/xwin/glx/winpriv.c index 671d81a5b..ea7ff0717 100644 --- a/xorg-server/hw/xwin/glx/winpriv.c +++ b/xorg-server/hw/xwin/glx/winpriv.c @@ -19,42 +19,26 @@ winCreateWindowsWindow (WindowPtr pWin); * Return size and handles of a window. * If pWin is NULL, then the information for the root window is requested. */ -void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo) +HWND winGetWindowInfo(WindowPtr pWin) { - /* Sanity check */ - if (pWinInfo == NULL) - return; - + HWND hwnd = NULL; winDebug("%s:%d pWin=%p\n", __FUNCTION__, __LINE__, pWin); /* a real window was requested */ if (pWin != NULL) { - /* Initialize the size information */ - RECT rect = { - pWin->drawable.x, - pWin->drawable.y, - pWin->drawable.x + pWin->drawable.width, - pWin->drawable.y + pWin->drawable.height - }, rect_extends; /* Get the window and screen privates */ ScreenPtr pScreen = pWin->drawable.pScreen; winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen); winScreenInfoPtr pScreenInfo = NULL; - rect_extends = rect; - OffsetRect(&rect_extends, -pWin->drawable.x, -pWin->drawable.y); - - if (pWinScreen == NULL) + if (pWinScreen == NULL) { ErrorF("winGetWindowInfo: screen has no privates\n"); - return; + return hwnd; } - pWinInfo->hwnd = pWinScreen->hwndScreen; - pWinInfo->hrgn = NULL; - pWinInfo->rect = rect; - + hwnd = pWinScreen->hwndScreen; pScreenInfo = pWinScreen->pScreenInfo; #ifdef XWIN_MULTIWINDOW @@ -66,7 +50,7 @@ void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo) if (pWinPriv == NULL) { ErrorF("winGetWindowInfo: window has no privates\n"); - return; + return hwnd; } if (pWinPriv->hWnd == NULL) @@ -75,30 +59,10 @@ void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo) ErrorF("winGetWindowInfo: forcing window to exist...\n"); } if (pWinPriv->hWnd != NULL) - { - /* copy size and window handle */ - pWinInfo->rect = rect_extends; - pWinInfo->hwnd = pWinPriv->hWnd; - - /* Copy window region */ - if (pWinPriv->hRgn) - { - if (!pWinInfo->hrgn) - { - pWinInfo->hrgn = CreateRectRgn(0,0,0,0); - } - CombineRgn(pWinInfo->hrgn, pWinPriv->hRgn, pWinPriv->hRgn, - RGN_COPY); - } - else if (pWinInfo->hrgn) - { - DeleteObject(pWinInfo->hrgn); - pWinInfo->hrgn=NULL; - } - + { + /* copy window handle */ + hwnd = pWinPriv->hWnd; } - - return; } else if (g_fXdmcpEnabled) { @@ -107,7 +71,7 @@ void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo) if (pWinPriv == NULL) { ErrorF("winGetWindowInfo: window has no privates\n"); - return; + return hwnd; } if (pWinPriv->hWnd == NULL) { @@ -133,24 +97,16 @@ void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo) NULL); pWinPriv->GlCtxWnd=TRUE; /* copy size and window handle */ - pWinInfo->hwnd = pWinPriv->hWnd; + hwnd = pWinPriv->hWnd; } else { - pWinInfo->hwnd = pWinScreen->hwndScreen; - } - pWinInfo->rect = rect_extends; - if (pWinInfo->hrgn) - { - DeleteObject(pWinInfo->hrgn); - pWinInfo->hrgn = NULL; + hwnd = pWinScreen->hwndScreen; } } else { - pWinInfo->rect = rect_extends; - pWinInfo->hwnd = pWinPriv->hWnd; - pWinInfo->hrgn = NULL; + hwnd = pWinPriv->hWnd; } } #endif @@ -163,40 +119,34 @@ void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo) if (pRLWinPriv == NULL) { ErrorF("winGetWindowInfo: window has no privates\n"); - return; } if (pRLWinPriv->hWnd != NULL) { - /* copy size and window handle */ - pWinInfo->rect = rect_extends; - pWinInfo->hwnd = pRLWinPriv->hWnd; + /* copy window handle */ + hwnd = pRLWinPriv->hWnd; } - return; } #endif } else { - RECT rect = {0, 0, 0, 0}; ScreenPtr pScreen = g_ScreenInfo[0].pScreen; winPrivScreenPtr pWinScreen = winGetScreenPriv(pScreen); - pWinInfo->hwnd = NULL; - pWinInfo->hrgn = NULL; - pWinInfo->rect = rect; - if (pWinScreen == NULL) { ErrorF("winGetWindowInfo: screen has no privates\n"); - return; } + else + { + winDebug("winGetWindowInfo: returning root window\n"); - winDebug("winGetWindowInfo: returning root window\n"); - - pWinInfo->hwnd = pWinScreen->hwndScreen; + hwnd=pWinScreen->hwndScreen; + } } - return; + + return hwnd; } Bool diff --git a/xorg-server/hw/xwin/glx/winpriv.h b/xorg-server/hw/xwin/glx/winpriv.h index 0b19c8c3f..710525ccc 100644 --- a/xorg-server/hw/xwin/glx/winpriv.h +++ b/xorg-server/hw/xwin/glx/winpriv.h @@ -1,20 +1,13 @@ -/*
- * Export window information for the Windows-OpenGL GLX implementation.
- *
- * Authors: Alexander Gottwald
- */
-
-#include <X11/Xwindows.h>
-#include <windowstr.h>
-
-#define WIN_GL_WINDOW_CLASS "XWinGLTest"
-
-typedef struct
-{
- HWND hwnd;
- HRGN hrgn;
- RECT rect;
-} winWindowInfoRec, *winWindowInfoPtr;
-
-void winGetWindowInfo(WindowPtr pWin, winWindowInfoPtr pWinInfo);
-Bool winCheckScreenAiglxIsSupported(ScreenPtr pScreen);
+/* + * Export window information for the Windows-OpenGL GLX implementation. + * + * Authors: Alexander Gottwald + */ + +#include <X11/Xwindows.h> +#include <windowstr.h> + +#define WIN_GL_WINDOW_CLASS "XWinGLTest" + +HWND winGetWindowInfo(WindowPtr pWin); +Bool winCheckScreenAiglxIsSupported(ScreenPtr pScreen); |