/* * Copyright (C) 2009 VMware, Inc. * Copyright (C) 1999-2006 Brian Paul * 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 AUTHORS 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. */ /* * This program is a work-alike of the GLX glxinfo program. * Command line options: * -t print wide table * -v print verbose information * -b only print ID of "best" visual on screen 0 * -l print interesting OpenGL limits (added 5 Sep 2002) */ #include #include #include #include #include #include #include #include "glinfo_common.h" typedef enum { Normal, Wide, Verbose } InfoMode; static LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ) { switch (uMsg) { case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, uMsg, wParam, lParam); } return 0; } static void print_screen_info(HDC _hdc, GLboolean limits, GLboolean singleLine) { WNDCLASS wc; HWND win; HGLRC ctx; int visinfo; HDC hdc; PIXELFORMATDESCRIPTOR pfd; int version; const char *oglString = "OpenGL"; memset(&wc, 0, sizeof wc); wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); wc.lpfnWndProc = WndProc; wc.lpszClassName = "wglinfo"; wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; RegisterClass(&wc); win = CreateWindowEx(0, wc.lpszClassName, "wglinfo", WS_CLIPSIBLINGS | WS_CLIPCHILDREN, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, wc.hInstance, NULL); if (!win) { fprintf(stderr, "Couldn't create window\n"); return; } hdc = GetDC(win); if (!hdc) { fprintf(stderr, "Couldn't obtain HDC\n"); return; } pfd.cColorBits = 3; pfd.cRedBits = 1; pfd.cGreenBits = 1; pfd.cBlueBits = 1; pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL; pfd.iLayerType = PFD_MAIN_PLANE; pfd.iPixelType = PFD_TYPE_RGBA; pfd.nSize = sizeof(pfd); pfd.nVersion = 1; visinfo = ChoosePixelFormat(hdc, &pfd); if (!visinfo) { pfd.dwFlags |= PFD_DOUBLEBUFFER; visinfo = ChoosePixelFormat(hdc, &pfd); } if (!visinfo) { fprintf(stderr, "Error: couldn't find RGB WGL visual\n"); return; } SetPixelFormat(hdc, visinfo, &pfd); ctx = wglCreateContext(hdc); if (!ctx) { fprintf(stderr, "Error: wglCreateContext failed\n"); return; } if (wglMakeCurrent(hdc, ctx)) { #if defined(WGL_ARB_extensions_string) PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB_func = (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB"); #endif const char *glVendor = (const char *) glGetString(GL_VENDOR); const char *glRenderer = (const char *) glGetString(GL_RENDERER); const char *glVersion = (const char *) glGetString(GL_VERSION); const char *glExtensions = (const char *) glGetString(GL_EXTENSIONS); struct ext_functions extfuncs; #if defined(WGL_ARB_extensions_string) if (wglGetExtensionsStringARB_func) { const char *wglExtensions = wglGetExtensionsStringARB_func(hdc); if(wglExtensions) { printf("WGL extensions:\n"); print_extension_list(wglExtensions, singleLine); } } #endif printf("OpenGL vendor string: %s\n", glVendor); printf("OpenGL renderer string: %s\n", glRenderer); printf("OpenGL version string: %s\n", glVersion); #ifdef GL_VERSION_2_0 if (glVersion[0] >= '2' && glVersion[1] == '.') { char *v = (char *) glGetString(GL_SHADING_LANGUAGE_VERSION); printf("OpenGL shading language version string: %s\n", v); } #endif extfuncs.GetProgramivARB = (PFNGLGETPROGRAMIVARBPROC) wglGetProcAddress("glGetProgramivARB"); extfuncs.GetStringi = (PFNGLGETSTRINGIPROC) wglGetProcAddress("glGetStringi"); extfuncs.GetConvolutionParameteriv = (GETCONVOLUTIONPARAMETERIVPROC) wglGetProcAddress("glGetConvolutionParameteriv"); version = (glVersion[0] - '0') * 10 + (glVersion[2] - '0'); printf("OpenGL extensions:\n"); print_extension_list(glExtensions, singleLine); if (limits) { print_limits(glExtensions, oglString, version, &extfuncs); } } else { fprintf(stderr, "Error: wglMakeCurrent failed\n"); } DestroyWindow(win); } static const char * visual_render_type_name(BYTE iPixelType) { switch (iPixelType) { case PFD_TYPE_RGBA: return "rgba"; case PFD_TYPE_COLORINDEX: return "ci"; default: return ""; } } static void print_visual_attribs_verbose(int iPixelFormat, LPPIXELFORMATDESCRIPTOR ppfd) { printf("Visual ID: %x generic=%d native=%d\n", iPixelFormat, ppfd->dwFlags & PFD_GENERIC_FORMAT ? 1 : 0, ppfd->dwFlags & PFD_DRAW_TO_WINDOW ? 1 : 0); printf(" bufferSize=%d level=%d renderType=%s doubleBuffer=%d stereo=%d\n", 0 /* ppfd->bufferSize */, 0 /* ppfd->level */, visual_render_type_name(ppfd->iPixelType), ppfd->dwFlags & PFD_DOUBLEBUFFER ? 1 : 0, ppfd->dwFlags & PFD_STEREO ? 1 : 0); printf(" rgba: cRedBits=%d cGreenBits=%d cBlueBits=%d cAlphaBits=%d\n", ppfd->cRedBits, ppfd->cGreenBits, ppfd->cBlueBits, ppfd->cAlphaBits); printf(" cAuxBuffers=%d cDepthBits=%d cStencilBits=%d\n", ppfd->cAuxBuffers, ppfd->cDepthBits, ppfd->cStencilBits); printf(" accum: cRedBits=%d cGreenBits=%d cBlueBits=%d cAlphaBits=%d\n", ppfd->cAccumRedBits, ppfd->cAccumGreenBits, ppfd->cAccumBlueBits, ppfd->cAccumAlphaBits); printf(" multiSample=%d multiSampleBuffers=%d\n", 0 /* ppfd->numSamples */, 0 /* ppfd->numMultisample */); } static void print_visual_attribs_short_header(void) { printf(" visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav\n"); printf(" id gen win sp sz l ci b ro r g b a bf th cl r g b a ns b eat\n"); printf("-----------------------------------------------------------------------\n"); } static void print_visual_attribs_short(int iPixelFormat, LPPIXELFORMATDESCRIPTOR ppfd) { char *caveat = "None"; printf("0x%02x %2d %2d %2d %2d %2d %c%c %c %c %2d %2d %2d %2d %2d %2d %2d", iPixelFormat, ppfd->dwFlags & PFD_GENERIC_FORMAT ? 1 : 0, ppfd->dwFlags & PFD_DRAW_TO_WINDOW ? 1 : 0, 0, 0 /* ppfd->bufferSize */, 0 /* ppfd->level */, ppfd->iPixelType == PFD_TYPE_RGBA ? 'r' : ' ', ppfd->iPixelType == PFD_TYPE_COLORINDEX ? 'c' : ' ', ppfd->dwFlags & PFD_DOUBLEBUFFER ? 'y' : '.', ppfd->dwFlags & PFD_STEREO ? 'y' : '.', ppfd->cRedBits, ppfd->cGreenBits, ppfd->cBlueBits, ppfd->cAlphaBits, ppfd->cAuxBuffers, ppfd->cDepthBits, ppfd->cStencilBits ); printf(" %2d %2d %2d %2d %2d %1d %s\n", ppfd->cAccumRedBits, ppfd->cAccumGreenBits, ppfd->cAccumBlueBits, ppfd->cAccumAlphaBits, 0 /* ppfd->numSamples */, 0 /* ppfd->numMultisample */, caveat ); } static void print_visual_attribs_long_header(void) { printf("Vis Vis Visual Trans buff lev render DB ste r g b a aux dep ste accum buffers MS MS\n"); printf(" ID Depth Type parent size el type reo sz sz sz sz buf th ncl r g b a num bufs\n"); printf("----------------------------------------------------------------------------------------------------\n"); } static void print_visual_attribs_long(int iPixelFormat, LPPIXELFORMATDESCRIPTOR ppfd) { printf("0x%2x %2d %11d %2d %2d %2d %4s %3d %3d %3d %3d %3d %3d", iPixelFormat, ppfd->dwFlags & PFD_GENERIC_FORMAT ? 1 : 0, ppfd->dwFlags & PFD_DRAW_TO_WINDOW ? 1 : 0, 0, 0 /* ppfd->bufferSize */, 0 /* ppfd->level */, visual_render_type_name(ppfd->iPixelType), ppfd->dwFlags & PFD_DOUBLEBUFFER ? 1 : 0, ppfd->dwFlags & PFD_STEREO ? 1 : 0, ppfd->cRedBits, ppfd->cGreenBits, ppfd->cBlueBits, ppfd->cAlphaBits ); printf(" %3d %4d %2d %3d %3d %3d %3d %2d %2d\n", ppfd->cAuxBuffers, ppfd->cDepthBits, ppfd->cStencilBits, ppfd->cAccumRedBits, ppfd->cAccumGreenBits, ppfd->cAccumBlueBits, ppfd->cAccumAlphaBits, 0 /* ppfd->numSamples */, 0 /* ppfd->numMultisample */ ); } static void print_visual_info(HDC hdc, InfoMode mode) { PIXELFORMATDESCRIPTOR pfd; int numVisuals, numWglVisuals; int i; numVisuals = DescribePixelFormat(hdc, 1, sizeof(PIXELFORMATDESCRIPTOR), NULL); if (numVisuals == 0) return; numWglVisuals = 0; for (i = 0; i < numVisuals; i++) { if(!DescribePixelFormat(hdc, i, sizeof(PIXELFORMATDESCRIPTOR), &pfd)) continue; //if(!(pfd.dwFlags & PFD_SUPPORT_OPENGL)) // continue; ++numWglVisuals; } printf("%d WGL Visuals\n", numWglVisuals); if (mode == Normal) print_visual_attribs_short_header(); else if (mode == Wide) print_visual_attribs_long_header(); for (i = 0; i < numVisuals; i++) { if(!DescribePixelFormat(hdc, i, sizeof(PIXELFORMATDESCRIPTOR), &pfd)) continue; //if(!(pfd.dwFlags & PFD_SUPPORT_OPENGL)) // continue; if (mode == Verbose) print_visual_attribs_verbose(i, &pfd); else if (mode == Normal) print_visual_attribs_short(i, &pfd); else if (mode == Wide) print_visual_attribs_long(i, &pfd); } printf("\n"); } /* * Examine all visuals to find the so-called best one. * We prefer deepest RGBA buffer with depth, stencil and accum * that has no caveats. */ static int find_best_visual(HDC hdc) { #if 0 XVisualInfo theTemplate; XVisualInfo *visuals; int numVisuals; long mask; int i; struct visual_attribs bestVis; /* get list of all visuals on this screen */ theTemplate.screen = scrnum; mask = VisualScreenMask; visuals = XGetVisualInfo(hdc, mask, &theTemplate, &numVisuals); /* init bestVis with first visual info */ get_visual_attribs(hdc, &visuals[0], &bestVis); /* try to find a "better" visual */ for (i = 1; i < numVisuals; i++) { struct visual_attribs vis; get_visual_attribs(hdc, &visuals[i], &vis); /* always skip visuals with caveats */ if (vis.visualCaveat != GLX_NONE_EXT) continue; /* see if this vis is better than bestVis */ if ((!bestVis.supportsGL && vis.supportsGL) || (bestVis.visualCaveat != GLX_NONE_EXT) || (bestVis.iPixelType != vis.iPixelType) || (!bestVis.doubleBuffer && vis.doubleBuffer) || (bestVis.cRedBits < vis.cRedBits) || (bestVis.cGreenBits < vis.cGreenBits) || (bestVis.cBlueBits < vis.cBlueBits) || (bestVis.cAlphaBits < vis.cAlphaBits) || (bestVis.cDepthBits < vis.cDepthBits) || (bestVis.cStencilBits < vis.cStencilBits) || (bestVis.cAccumRedBits < vis.cAccumRedBits)) { /* found a better visual */ bestVis = vis; } } return bestVis.id; #else return 0; #endif } static void usage(void) { printf("Usage: glxinfo [-v] [-t] [-h] [-i] [-b] [-display ]\n"); printf("\t-v: Print visuals info in verbose form.\n"); printf("\t-t: Print verbose table.\n"); printf("\t-h: This information.\n"); printf("\t-b: Find the 'best' visual and print its number.\n"); printf("\t-l: Print interesting OpenGL limits.\n"); printf("\t-s: Print a single extension per line.\n"); } int main(int argc, char *argv[]) { HDC hdc; InfoMode mode = Normal; GLboolean findBest = GL_FALSE; GLboolean limits = GL_FALSE; GLboolean singleLine = GL_FALSE; int i; for (i = 1; i < argc; i++) { if (strcmp(argv[i], "-t") == 0) { mode = Wide; } else if (strcmp(argv[i], "-v") == 0) { mode = Verbose; } else if (strcmp(argv[i], "-b") == 0) { findBest = GL_TRUE; } else if (strcmp(argv[i], "-l") == 0) { limits = GL_TRUE; } else if (strcmp(argv[i], "-h") == 0) { usage(); return 0; } else if(strcmp(argv[i], "-s") == 0) { singleLine = GL_TRUE; } else { printf("Unknown option `%s'\n", argv[i]); usage(); return 0; } } hdc = CreateDC(TEXT("DISPLAY"), NULL, NULL, NULL); if (findBest) { int b; b = find_best_visual(hdc); printf("%d\n", b); } else { print_screen_info(hdc, limits, singleLine); printf("\n"); print_visual_info(hdc, mode); } return 0; }