/* * Some tests for OpenGL functions * * Copyright (C) 2007 Roderick Colenbrander * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include #include #include "wine/test.h" #define MAX_FORMATS 256 typedef void* HPBUFFERARB; /* WGL_ARB_extensions_string */ static const char* (WINAPI *pwglGetExtensionsStringARB)(HDC); static int (WINAPI *pwglReleasePbufferDCARB)(HPBUFFERARB, HDC); /* WGL_ARB_make_current_read */ static BOOL (WINAPI *pwglMakeContextCurrentARB)(HDC hdraw, HDC hread, HGLRC hglrc); static HDC (WINAPI *pwglGetCurrentReadDCARB)(); /* WGL_ARB_pixel_format */ #define WGL_COLOR_BITS_ARB 0x2014 #define WGL_RED_BITS_ARB 0x2015 #define WGL_GREEN_BITS_ARB 0x2017 #define WGL_BLUE_BITS_ARB 0x2019 #define WGL_ALPHA_BITS_ARB 0x201B #define WGL_SUPPORT_GDI_ARB 0x200F #define WGL_DOUBLE_BUFFER_ARB 0x2011 static BOOL (WINAPI *pwglChoosePixelFormatARB)(HDC, const int *, const FLOAT *, UINT, int *, UINT *); static BOOL (WINAPI *pwglGetPixelFormatAttribivARB)(HDC, int, int, UINT, const int *, int *); /* WGL_ARB_pbuffer */ #define WGL_DRAW_TO_PBUFFER_ARB 0x202D static HPBUFFERARB* (WINAPI *pwglCreatePbufferARB)(HDC, int, int, int, const int *); static HDC (WINAPI *pwglGetPbufferDCARB)(HPBUFFERARB); static const char* wgl_extensions = NULL; static void init_functions(void) { #define GET_PROC(func) \ p ## func = (void*)wglGetProcAddress(#func); \ if(!p ## func) \ trace("wglGetProcAddress(%s) failed\n", #func); /* WGL_ARB_extensions_string */ GET_PROC(wglGetExtensionsStringARB) /* WGL_ARB_make_current_read */ GET_PROC(wglMakeContextCurrentARB); GET_PROC(wglGetCurrentReadDCARB); /* WGL_ARB_pixel_format */ GET_PROC(wglChoosePixelFormatARB) GET_PROC(wglGetPixelFormatAttribivARB) /* WGL_ARB_pbuffer */ GET_PROC(wglCreatePbufferARB) GET_PROC(wglGetPbufferDCARB) GET_PROC(wglReleasePbufferDCARB) #undef GET_PROC } static void test_pbuffers(HDC hdc) { const int iAttribList[] = { WGL_DRAW_TO_PBUFFER_ARB, 1, /* Request pbuffer support */ 0 }; int iFormats[MAX_FORMATS]; unsigned int nOnscreenFormats; unsigned int nFormats; int i, res; int iPixelFormat = 0; nOnscreenFormats = DescribePixelFormat(hdc, 0, 0, NULL); /* When you want to render to a pbuffer you need to call wglGetPbufferDCARB which * returns a 'magic' HDC which you can then pass to wglMakeCurrent to switch rendering * to the pbuffer. Below some tests are performed on what happens if you use standard WGL calls * on this 'magic' HDC for both a pixelformat that support onscreen and offscreen rendering * and a pixelformat that's only available for offscreen rendering (this means that only * wglChoosePixelFormatARB and friends know about the format. * * The first thing we need are pixelformats with pbuffer capabilites. */ res = pwglChoosePixelFormatARB(hdc, iAttribList, NULL, MAX_FORMATS, iFormats, &nFormats); if(res <= 0) { skip("No pbuffer compatible formats found while WGL_ARB_pbuffer is supported\n"); return; } trace("nOnscreenFormats: %d\n", nOnscreenFormats); trace("Total number of pbuffer capable pixelformats: %d\n", nFormats); /* Try to select an onscreen pixelformat out of the list */ for(i=0; i < nFormats; i++) { /* Check if the format is onscreen, if it is choose it */ if(iFormats[i] <= nOnscreenFormats) { iPixelFormat = iFormats[i]; trace("Selected iPixelFormat=%d\n", iPixelFormat); break; } } /* A video driver supports a large number of onscreen and offscreen pixelformats. * The traditional WGL calls only see a subset of the whole pixelformat list. First * of all they only see the onscreen formats (the offscreen formats are at the end of the * pixelformat list) and second extended pixelformat capabilities are hidden from the * standard WGL calls. Only functions that depend on WGL_ARB_pixel_format can see them. * * Below we check if the pixelformat is also supported onscreen. */ if(iPixelFormat != 0) { HDC pbuffer_hdc; HPBUFFERARB pbuffer = pwglCreatePbufferARB(hdc, iPixelFormat, 640 /* width */, 480 /* height */, NULL); if(!pbuffer) skip("Pbuffer creation failed!\n"); /* Test the pixelformat returned by GetPixelFormat on a pbuffer as the behavior is not clear */ pbuffer_hdc = pwglGetPbufferDCARB(pbuffer); res = GetPixelFormat(pbuffer_hdc); ok(res == iPixelFormat, "Unexpected iPixelFormat=%d returned by GetPixelFormat for format %d\n", res, iPixelFormat); trace("iPixelFormat returned by GetPixelFormat: %d\n", res); trace("PixelFormat from wglChoosePixelFormatARB: %d\n", iPixelFormat); pwglReleasePbufferDCARB(pbuffer, hdc); } else skip("Pbuffer test for onscreen pixelformat skipped as no onscreen format with pbuffer capabilities have been found\n"); /* Search for a real offscreen format */ for(i=0, iPixelFormat=0; i nOnscreenFormats) { iPixelFormat = iFormats[i]; trace("Selected iPixelFormat: %d\n", iPixelFormat); break; } } if(iPixelFormat != 0) { HDC pbuffer_hdc; HPBUFFERARB pbuffer = pwglCreatePbufferARB(hdc, iPixelFormat, 640 /* width */, 480 /* height */, NULL); if(!pbuffer) skip("Pbuffer creation failed!\n"); /* Test the pixelformat returned by GetPixelFormat on a pbuffer as the behavior is not clear */ pbuffer_hdc = pwglGetPbufferDCARB(pbuffer); res = GetPixelFormat(pbuffer_hdc); ok(res == 1, "Unexpected iPixelFormat=%d (1 expected) returned by GetPixelFormat for offscreen format %d\n", res, iPixelFormat); trace("iPixelFormat returned by GetPixelFormat: %d\n", res); trace("PixelFormat from wglChoosePixelFormatARB: %d\n", iPixelFormat); pwglReleasePbufferDCARB(pbuffer, hdc); } else skip("Pbuffer test for offscreen pixelformat skipped as no offscreen-only format with pbuffer capabilities has been found\n"); } static void test_setpixelformat(HDC winhdc) { int res = 0; int nCfgs; int pf; int i; PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), 1, /* version */ PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, PFD_TYPE_RGBA, 24, /* 24-bit color depth */ 0, 0, 0, 0, 0, 0, /* color bits */ 0, /* alpha buffer */ 0, /* shift bit */ 0, /* accumulation buffer */ 0, 0, 0, 0, /* accum bits */ 32, /* z-buffer */ 0, /* stencil buffer */ 0, /* auxiliary buffer */ PFD_MAIN_PLANE, /* main layer */ 0, /* reserved */ 0, 0, 0 /* layer masks */ }; HDC hdc = GetDC(0); ok(hdc != 0, "GetDC(0) failed!\n"); /* This should pass even on the main device context */ pf = ChoosePixelFormat(hdc, &pfd); ok(pf != 0, "ChoosePixelFormat failed on main device context\n"); /* SetPixelFormat on the main device context 'X root window' should fail */ res = SetPixelFormat(hdc, pf, &pfd); ok(res == 0, "SetPixelFormat on main device context should fail\n"); /* Setting the same format that was set on the HDC is allowed; other formats fail */ nCfgs = DescribePixelFormat(winhdc, 0, 0, NULL); pf = GetPixelFormat(winhdc); for(i = 1;i <= nCfgs;i++) { int res = SetPixelFormat(winhdc, i, NULL); if(i == pf) ok(res, "Failed to set the same pixel format\n"); else ok(!res, "Unexpectedly set an alternate pixel format\n"); } } static void test_colorbits(HDC hdc) { const int iAttribList[] = { WGL_COLOR_BITS_ARB, WGL_RED_BITS_ARB, WGL_GREEN_BITS_ARB, WGL_BLUE_BITS_ARB, WGL_ALPHA_BITS_ARB }; int iAttribRet[sizeof(iAttribList)/sizeof(iAttribList[0])]; const int iAttribs[] = { WGL_ALPHA_BITS_ARB, 1, 0 }; unsigned int nFormats; int res; int iPixelFormat = 0; /* We need a pixel format with at least one bit of alpha */ res = pwglChoosePixelFormatARB(hdc, iAttribs, NULL, 1, &iPixelFormat, &nFormats); if(res == FALSE || nFormats == 0) { skip("No suitable pixel formats found\n"); return; } res = pwglGetPixelFormatAttribivARB(hdc, iPixelFormat, 0, sizeof(iAttribList)/sizeof(iAttribList[0]), iAttribList, iAttribRet); if(res == FALSE) { skip("wglGetPixelFormatAttribivARB failed\n"); return; } iAttribRet[1] += iAttribRet[2]+iAttribRet[3]+iAttribRet[4]; ok(iAttribRet[0] == iAttribRet[1], "WGL_COLOR_BITS_ARB (%d) does not equal R+G+B+A (%d)!\n", iAttribRet[0], iAttribRet[1]); } static void test_gdi_dbuf(HDC hdc) { const int iAttribList[] = { WGL_SUPPORT_GDI_ARB, WGL_DOUBLE_BUFFER_ARB }; int iAttribRet[sizeof(iAttribList)/sizeof(iAttribList[0])]; unsigned int nFormats; int iPixelFormat; int res; nFormats = DescribePixelFormat(hdc, 0, 0, NULL); for(iPixelFormat = 1;iPixelFormat <= nFormats;iPixelFormat++) { res = pwglGetPixelFormatAttribivARB(hdc, iPixelFormat, 0, sizeof(iAttribList)/sizeof(iAttribList[0]), iAttribList, iAttribRet); ok(res!=FALSE, "wglGetPixelFormatAttribivARB failed for pixel format %d\n", iPixelFormat); if(res == FALSE) continue; ok(!(iAttribRet[0] && iAttribRet[1]), "GDI support and double buffering on pixel format %d\n", iPixelFormat); } } static void test_make_current_read(HDC hdc) { int res; HDC hread; HGLRC hglrc = wglCreateContext(hdc); if(!hglrc) { skip("wglCreateContext failed!\n"); return; } res = wglMakeCurrent(hdc, hglrc); if(!res) { skip("wglMakeCurrent failed!\n"); return; } /* Test what wglGetCurrentReadDCARB does for wglMakeCurrent as the spec doesn't mention it */ hread = pwglGetCurrentReadDCARB(); trace("hread %p, hdc %p\n", hread, hdc); ok(hread == hdc, "wglGetCurrentReadDCARB failed for standard wglMakeCurrent\n"); pwglMakeContextCurrentARB(hdc, hdc, hglrc); hread = pwglGetCurrentReadDCARB(); ok(hread == hdc, "wglGetCurrentReadDCARB failed for wglMakeContextCurrent\n"); } static void test_dc(HWND hwnd, HDC hdc) { int pf1, pf2; HDC hdc2; /* Get another DC and make sure it has the same pixel format */ hdc2 = GetDC(hwnd); if(hdc != hdc2) { pf1 = GetPixelFormat(hdc); pf2 = GetPixelFormat(hdc2); ok(pf1 == pf2, "Second DC does not have the same format (%d != %d)\n", pf1, pf2); } else skip("Could not get a different DC for the window\n"); if(hdc2) { ReleaseDC(hwnd, hdc2); hdc2 = NULL; } } START_TEST(opengl) { HWND hwnd; PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), 1, /* version */ PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, PFD_TYPE_RGBA, 24, /* 24-bit color depth */ 0, 0, 0, 0, 0, 0, /* color bits */ 0, /* alpha buffer */ 0, /* shift bit */ 0, /* accumulation buffer */ 0, 0, 0, 0, /* accum bits */ 32, /* z-buffer */ 0, /* stencil buffer */ 0, /* auxiliary buffer */ PFD_MAIN_PLANE, /* main layer */ 0, /* reserved */ 0, 0, 0 /* layer masks */ }; hwnd = CreateWindow("static", "Title", WS_OVERLAPPEDWINDOW, 10, 10, 200, 200, NULL, NULL, NULL, NULL); ok(hwnd != NULL, "err: %d\n", GetLastError()); if (hwnd) { HDC hdc; int iPixelFormat, res; HGLRC hglrc; ShowWindow(hwnd, SW_SHOW); hdc = GetDC(hwnd); iPixelFormat = ChoosePixelFormat(hdc, &pfd); ok(iPixelFormat > 0, "No pixelformat found!\n"); /* This should never happen as ChoosePixelFormat always returns a closest match */ res = SetPixelFormat(hdc, iPixelFormat, &pfd); ok(res, "SetPixelformat failed: %x\n", GetLastError()); test_dc(hwnd, hdc); hglrc = wglCreateContext(hdc); res = wglMakeCurrent(hdc, hglrc); ok(res, "wglMakeCurrent failed!\n"); init_functions(); test_setpixelformat(hdc); test_colorbits(hdc); test_gdi_dbuf(hdc); wgl_extensions = pwglGetExtensionsStringARB(hdc); if(wgl_extensions == NULL) skip("Skipping opengl32 tests because this OpenGL implementation doesn't support WGL extensions!\n"); if(strstr(wgl_extensions, "WGL_ARB_make_current_read")) test_make_current_read(hdc); else trace("WGL_ARB_make_current_read not supported, skipping test\n"); if(strstr(wgl_extensions, "WGL_ARB_pbuffer")) test_pbuffers(hdc); else trace("WGL_ARB_pbuffer not supported, skipping pbuffer test\n"); DestroyWindow(hwnd); } }