diff options
Diffstat (limited to 'progs/wgl/wglinfo.c')
| -rw-r--r-- | progs/wgl/wglinfo.c | 737 |
1 files changed, 737 insertions, 0 deletions
diff --git a/progs/wgl/wglinfo.c b/progs/wgl/wglinfo.c new file mode 100644 index 00000000000..5cf0e8bb25b --- /dev/null +++ b/progs/wgl/wglinfo.c @@ -0,0 +1,737 @@ +/* + * 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 <windows.h> + +#include <GL/gl.h> +#include <GL/glext.h> +#include <GL/wglext.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + + +typedef enum +{ + Normal, + Wide, + Verbose +} InfoMode; + + +/* + * Print a list of extensions, with word-wrapping. + */ +static void +print_extension_list(const char *ext) +{ + const char *indentString = " "; + const int indent = 4; + const int max = 79; + int width, i, j; + + if (!ext || !ext[0]) + return; + + width = indent; + printf(indentString); + i = j = 0; + while (1) { + if (ext[j] == ' ' || ext[j] == 0) { + /* found end of an extension name */ + const int len = j - i; + if (width + len > max) { + /* start a new line */ + printf("\n"); + width = indent; + printf(indentString); + } + /* print the extension name between ext[i] and ext[j] */ + while (i < j) { + printf("%c", ext[i]); + i++; + } + /* either we're all done, or we'll continue with next extension */ + width += len + 1; + if (ext[j] == 0) { + break; + } + else { + i++; + j++; + if (ext[j] == 0) + break; + printf(", "); + width += 2; + } + } + j++; + } + printf("\n"); +} + + +/** + * Print interesting limits for vertex/fragment programs. + */ +static void +print_program_limits(GLenum target) +{ +#if defined(GL_ARB_vertex_program) || defined(GL_ARB_fragment_program) + struct token_name { + GLenum token; + const char *name; + }; + static const struct token_name limits[] = { + { GL_MAX_PROGRAM_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEMPORARIES_ARB, "GL_MAX_PROGRAM_TEMPORARIES_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB, "GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB" }, + { GL_MAX_PROGRAM_PARAMETERS_ARB, "GL_MAX_PROGRAM_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB, "GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_ATTRIBS_ARB, "GL_MAX_PROGRAM_ATTRIBS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB, "GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB" }, + { GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB, "GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB, "GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB" }, + { GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB, "GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, "GL_MAX_PROGRAM_ENV_PARAMETERS_ARB" }, + { GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB, "GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB" }, + { GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB, "GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB" }, + { (GLenum) 0, NULL } + }; + PFNGLGETPROGRAMIVARBPROC GetProgramivARB_func = (PFNGLGETPROGRAMIVARBPROC) + wglGetProcAddress("glGetProgramivARB"); + GLint max[1]; + int i; + + if (target == GL_VERTEX_PROGRAM_ARB) { + printf(" GL_VERTEX_PROGRAM_ARB:\n"); + } + else if (target == GL_FRAGMENT_PROGRAM_ARB) { + printf(" GL_FRAGMENT_PROGRAM_ARB:\n"); + } + else { + return; /* something's wrong */ + } + + for (i = 0; limits[i].token; i++) { + GetProgramivARB_func(target, limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", limits[i].name, max[0]); + } + } +#endif /* GL_ARB_vertex_program / GL_ARB_fragment_program */ +} + + +/** + * Print interesting limits for vertex/fragment shaders. + */ +static void +print_shader_limits(GLenum target) +{ + struct token_name { + GLenum token; + const char *name; + }; +#if defined(GL_ARB_vertex_shader) + static const struct token_name vertex_limits[] = { + { GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB, "GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB" }, + { GL_MAX_VARYING_FLOATS_ARB, "GL_MAX_VARYING_FLOATS_ARB" }, + { GL_MAX_VERTEX_ATTRIBS_ARB, "GL_MAX_VERTEX_ATTRIBS_ARB" }, + { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB" }, + { GL_MAX_TEXTURE_COORDS_ARB, "GL_MAX_TEXTURE_COORDS_ARB" }, + { (GLenum) 0, NULL } + }; +#endif +#if defined(GL_ARB_fragment_shader) + static const struct token_name fragment_limits[] = { + { GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB, "GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB" }, + { GL_MAX_TEXTURE_COORDS_ARB, "GL_MAX_TEXTURE_COORDS_ARB" }, + { GL_MAX_TEXTURE_IMAGE_UNITS_ARB, "GL_MAX_TEXTURE_IMAGE_UNITS_ARB" }, + { (GLenum) 0, NULL } + }; +#endif + GLint max[1]; + int i; + +#if defined(GL_ARB_vertex_shader) + if (target == GL_VERTEX_SHADER_ARB) { + printf(" GL_VERTEX_SHADER_ARB:\n"); + for (i = 0; vertex_limits[i].token; i++) { + glGetIntegerv(vertex_limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", vertex_limits[i].name, max[0]); + } + } + } +#endif +#if defined(GL_ARB_fragment_shader) + if (target == GL_FRAGMENT_SHADER_ARB) { + printf(" GL_FRAGMENT_SHADER_ARB:\n"); + for (i = 0; fragment_limits[i].token; i++) { + glGetIntegerv(fragment_limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + printf(" %s = %d\n", fragment_limits[i].name, max[0]); + } + } + } +#endif +} + + +/** + * Print interesting OpenGL implementation limits. + */ +static void +print_limits(const char *extensions) +{ + struct token_name { + GLuint count; + GLenum token; + const char *name; + }; + static const struct token_name limits[] = { + { 1, GL_MAX_ATTRIB_STACK_DEPTH, "GL_MAX_ATTRIB_STACK_DEPTH" }, + { 1, GL_MAX_CLIENT_ATTRIB_STACK_DEPTH, "GL_MAX_CLIENT_ATTRIB_STACK_DEPTH" }, + { 1, GL_MAX_CLIP_PLANES, "GL_MAX_CLIP_PLANES" }, + { 1, GL_MAX_COLOR_MATRIX_STACK_DEPTH, "GL_MAX_COLOR_MATRIX_STACK_DEPTH" }, + { 1, GL_MAX_ELEMENTS_VERTICES, "GL_MAX_ELEMENTS_VERTICES" }, + { 1, GL_MAX_ELEMENTS_INDICES, "GL_MAX_ELEMENTS_INDICES" }, + { 1, GL_MAX_EVAL_ORDER, "GL_MAX_EVAL_ORDER" }, + { 1, GL_MAX_LIGHTS, "GL_MAX_LIGHTS" }, + { 1, GL_MAX_LIST_NESTING, "GL_MAX_LIST_NESTING" }, + { 1, GL_MAX_MODELVIEW_STACK_DEPTH, "GL_MAX_MODELVIEW_STACK_DEPTH" }, + { 1, GL_MAX_NAME_STACK_DEPTH, "GL_MAX_NAME_STACK_DEPTH" }, + { 1, GL_MAX_PIXEL_MAP_TABLE, "GL_MAX_PIXEL_MAP_TABLE" }, + { 1, GL_MAX_PROJECTION_STACK_DEPTH, "GL_MAX_PROJECTION_STACK_DEPTH" }, + { 1, GL_MAX_TEXTURE_STACK_DEPTH, "GL_MAX_TEXTURE_STACK_DEPTH" }, + { 1, GL_MAX_TEXTURE_SIZE, "GL_MAX_TEXTURE_SIZE" }, + { 1, GL_MAX_3D_TEXTURE_SIZE, "GL_MAX_3D_TEXTURE_SIZE" }, + { 2, GL_MAX_VIEWPORT_DIMS, "GL_MAX_VIEWPORT_DIMS" }, + { 2, GL_ALIASED_LINE_WIDTH_RANGE, "GL_ALIASED_LINE_WIDTH_RANGE" }, + { 2, GL_SMOOTH_LINE_WIDTH_RANGE, "GL_SMOOTH_LINE_WIDTH_RANGE" }, + { 2, GL_ALIASED_POINT_SIZE_RANGE, "GL_ALIASED_POINT_SIZE_RANGE" }, + { 2, GL_SMOOTH_POINT_SIZE_RANGE, "GL_SMOOTH_POINT_SIZE_RANGE" }, +#if defined(GL_ARB_texture_cube_map) + { 1, GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, "GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB" }, +#endif +#if defined(GLX_NV_texture_rectangle) + { 1, GL_MAX_RECTANGLE_TEXTURE_SIZE_NV, "GL_MAX_RECTANGLE_TEXTURE_SIZE_NV" }, +#endif +#if defined(GL_ARB_texture_compression) + { 1, GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, "GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB" }, +#endif +#if defined(GL_ARB_multitexture) + { 1, GL_MAX_TEXTURE_UNITS_ARB, "GL_MAX_TEXTURE_UNITS_ARB" }, +#endif +#if defined(GL_EXT_texture_lod_bias) + { 1, GL_MAX_TEXTURE_LOD_BIAS_EXT, "GL_MAX_TEXTURE_LOD_BIAS_EXT" }, +#endif +#if defined(GL_EXT_texture_filter_anisotropic) + { 1, GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, "GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT" }, +#endif +#if defined(GL_ARB_draw_buffers) + { 1, GL_MAX_DRAW_BUFFERS_ARB, "GL_MAX_DRAW_BUFFERS_ARB" }, +#endif + { 0, (GLenum) 0, NULL } + }; + GLint i, max[2]; + + printf("OpenGL limits:\n"); + for (i = 0; limits[i].count; i++) { + glGetIntegerv(limits[i].token, max); + if (glGetError() == GL_NO_ERROR) { + if (limits[i].count == 1) + printf(" %s = %d\n", limits[i].name, max[0]); + else /* XXX fix if we ever query something with more than 2 values */ + printf(" %s = %d, %d\n", limits[i].name, max[0], max[1]); + } + } + +#if defined(GL_EXT_convolution) + { + PFNGLGETCONVOLUTIONPARAMETERIVEXTPROC glGetConvolutionParameterivEXT_func = + (PFNGLGETCONVOLUTIONPARAMETERIVEXTPROC)wglGetProcAddress("glGetConvolutionParameterivEXT"); + if(glGetConvolutionParameterivEXT_func) { + /* these don't fit into the above mechanism, unfortunately */ + glGetConvolutionParameterivEXT_func(GL_CONVOLUTION_2D, GL_MAX_CONVOLUTION_WIDTH, max); + glGetConvolutionParameterivEXT_func(GL_CONVOLUTION_2D, GL_MAX_CONVOLUTION_HEIGHT, max+1); + if (glGetError() == GL_NONE) { + printf(" GL_MAX_CONVOLUTION_WIDTH/HEIGHT = %d, %d\n", max[0], max[1]); + } + } + } +#endif + +#if defined(GL_ARB_vertex_program) + if (strstr(extensions, "GL_ARB_vertex_program")) { + print_program_limits(GL_VERTEX_PROGRAM_ARB); + } +#endif +#if defined(GL_ARB_fragment_program) + if (strstr(extensions, "GL_ARB_fragment_program")) { + print_program_limits(GL_FRAGMENT_PROGRAM_ARB); + } +#endif +#if defined(GL_ARB_vertex_shader) + if (strstr(extensions, "GL_ARB_vertex_shader")) { + print_shader_limits(GL_VERTEX_SHADER_ARB); + } +#endif +#if defined(GL_ARB_fragment_shader) + if (strstr(extensions, "GL_ARB_fragment_shader")) { + print_shader_limits(GL_FRAGMENT_SHADER_ARB); + } +#endif +} + + +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) +{ + WNDCLASS wc; + HWND win; + HGLRC ctx; + int visinfo; + int width = 100, height = 100; + HDC hdc; + PIXELFORMATDESCRIPTOR pfd; + + 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_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, + CW_USEDEFAULT, + CW_USEDEFAULT, + width, + height, + NULL, + NULL, + wc.hInstance, + NULL); + if (!win) { + fprintf(stderr, "Couldn't create window"); + exit(1); + } + + hdc = GetDC(win); + if (!hdc) { + fprintf(stderr, "Couldn't obtain HDC"); + 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); + +#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); + } + } +#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 + + printf("OpenGL extensions:\n"); + print_extension_list(glExtensions); + if (limits) + print_limits(glExtensions); + } + 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->dwFlags), + 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 nat 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 <dname>]\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 it's number.\n"); + printf("\t-l: Print interesting OpenGL limits.\n"); +} + + +int +main(int argc, char *argv[]) +{ + HDC hdc; + InfoMode mode = Normal; + GLboolean findBest = GL_FALSE; + GLboolean limits = 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 { + 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); + printf("\n"); + print_visual_info(hdc, mode); + } + + return 0; +} |