mirror of
https://github.com/Perlmint/glew-cmake.git
synced 2024-11-22 22:55:06 +00:00
added wglinfo
git-svn-id: https://glew.svn.sourceforge.net/svnroot/glew/trunk/glew@38 783a27ee-832a-0410-bc00-9f386506c6dd
This commit is contained in:
ikits
parent
f58e3b1c33
commit
19931cd85e
466
src/wglinfo.c
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466
src/wglinfo.c
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@ -0,0 +1,466 @@
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/*
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** wglinfo.c
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**
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** Copyright (C) Nate Robins, 1997
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** Michael Wimmer, 1999
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** Milan Ikits, 2003
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**
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** wglinfo is a small utility that displays all available visuals,
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** aka. pixelformats, in an OpenGL system along with renderer version
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** information. It shows a table of all the visuals that support OpenGL
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** and their capabilities. The format of the table is similar to glxinfo
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** on Unix systems:
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**
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** visual ~= pixel format descriptor
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** id = visual id (integer from 1 - max visuals)
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** dep = cColorBits - color depth
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** tp = dwFlags - visual type (wn: window, pb: pbuffer, bm: bitmap)
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** xsp = no analog - transparent pixel (currently always ".")
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** bfsz = cColorBits - framebuffer size
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** lvl = bReserved - overlay (>0), underlay (<0), main plane (0)
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** rgci = iPixelType - rb = rgba mode, ci = color index mode
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** db = dwFlags & PFD_DOUBLEBUFFER - double buffer flag (y = yes)
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** stro = dwFlags & PFD_STEREO - stereo flag (y = yes)
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** gene = dwFlags & PFD_GENERIC - software generic (y = yes) or ICD
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** geac = dwFlags & PFD_GENERIC_ACCELERATED - generic with hardware (MCD)
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** rsz = cRedBits - # bits of red
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** gsz = cGreenBits - # bits of green
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** bsz = cBlueBits - # bits of blue
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** asz = cAlphaBits - # bits of alpha
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** axbf = cAuxBuffers - # of aux buffers
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** dpth = cDepthBits - # bits of depth
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** stcl = cStencilBits - # bits of stencil
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** accum sz = cAccumBits - total # of bits in accumulation buffer
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** accum r = cAccumRedBits - # bits of red in accumulation buffer
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** accum g = cAccumGreenBits - # bits of green in accumulation buffer
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** accum b = cAccumBlueBits - # bits of blue in accumulation buffer
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** accum a = cAccumAlphaBits - # bits of alpha in accumulation buffer
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** ms ns/b = no analog - multisample buffers (currently always ".")
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*/
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#include <stdio.h>
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#include <windows.h> /* must include */
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#include <GL/gl.h> /* OpenGL header */
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#include <GL/glu.h> /* GLU header */
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int drawableonly = 0;
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int pixelformatok = 0;
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int dontcreatecontext = 0;
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int displaystdout = 0;
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int verbose = 0;
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FILE* file = stdout;
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#define WGL_DRAW_TO_PBUFFER_ARB 0x202D
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#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000
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typedef const char* (APIENTRY * wglGetExtensionsStringARBPROC) (HDC hdc);
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typedef const char* (APIENTRY * wglGetExtensionsStringEXTPROC) ();
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typedef BOOL (APIENTRY * wglGetPixelFormatAttribivARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
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typedef BOOL (APIENTRY * wglChoosePixelFormatARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
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wglGetExtensionsStringARBPROC wglGetExtensionsStringARB = NULL;
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wglGetExtensionsStringEXTPROC wglGetExtensionsStringEXT = NULL;
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wglGetPixelFormatAttribivARBPROC wglGetPixelFormatAttribivARB = NULL;
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wglChoosePixelFormatARBPROC wglChoosePixelFormatARB = NULL;
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void
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VisualInfo (HDC hDC, int verbose)
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{
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int i, maxpf;
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PIXELFORMATDESCRIPTOR pfd;
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/* calling DescribePixelFormat() with NULL pfd (!!!) return maximum
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number of pixel formats */
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maxpf = DescribePixelFormat(hDC, 1, 0, NULL);
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if (!verbose)
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{
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fprintf(file, "-----------------------------------------------------------------------------\n");
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fprintf(file, " visual x bf lv rg d st ge ge r g b a ax dp st accum buffs ms \n");
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fprintf(file, " id dep tp sp sz l ci b ro ne ac sz sz sz sz bf th cl sz r g b a ns b\n");
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fprintf(file, "-----------------------------------------------------------------------------\n");
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/* loop through all the pixel formats */
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for(i = 1; i <= maxpf; i++)
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{
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DescribePixelFormat(hDC, i, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
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/* only describe this format if it supports OpenGL */
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if(!(pfd.dwFlags & PFD_SUPPORT_OPENGL)
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|| (drawableonly && (pfd.dwFlags & PFD_DRAW_TO_BITMAP))) continue;
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/* other criteria could be tested here for actual pixel format
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choosing in an application:
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for (...each pixel format...) {
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if (pfd.dwFlags & PFD_SUPPORT_OPENGL &&
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pfd.dwFlags & PFD_DOUBLEBUFFER &&
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pfd.cDepthBits >= 24 &&
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pfd.cColorBits >= 24)
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{
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goto found;
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}
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}
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... not found so exit ...
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found:
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... found so use it ...
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*/
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/* print out the information for this pixel format */
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fprintf(file, "0x%02x ", i);
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fprintf(file, "%3d ", pfd.cColorBits);
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if(pfd.dwFlags & PFD_DRAW_TO_WINDOW) fprintf(file, "wn ");
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else if(pfd.dwFlags & PFD_DRAW_TO_BITMAP) fprintf(file, "bm ");
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else fprintf(file, "pb ");
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/* should find transparent pixel from LAYERPLANEDESCRIPTOR */
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fprintf(file, " . ");
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fprintf(file, "%3d ", pfd.cColorBits);
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/* bReserved field indicates number of over/underlays */
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if(pfd.bReserved) fprintf(file, " %d ", pfd.bReserved);
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else fprintf(file, " . ");
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fprintf(file, " %c ", pfd.iPixelType == PFD_TYPE_RGBA ? 'r' : 'c');
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fprintf(file, "%c ", pfd.dwFlags & PFD_DOUBLEBUFFER ? 'y' : '.');
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fprintf(file, " %c ", pfd.dwFlags & PFD_STEREO ? 'y' : '.');
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/* added: */
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fprintf(file, " %c ", pfd.dwFlags & PFD_GENERIC_FORMAT ? 'y' : '.');
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fprintf(file, " %c ", pfd.dwFlags & PFD_GENERIC_ACCELERATED ? 'y' : '.');
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if(pfd.cRedBits && pfd.iPixelType == PFD_TYPE_RGBA)
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fprintf(file, "%2d ", pfd.cRedBits);
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else fprintf(file, " . ");
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if(pfd.cGreenBits && pfd.iPixelType == PFD_TYPE_RGBA)
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fprintf(file, "%2d ", pfd.cGreenBits);
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else fprintf(file, " . ");
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if(pfd.cBlueBits && pfd.iPixelType == PFD_TYPE_RGBA)
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fprintf(file, "%2d ", pfd.cBlueBits);
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else fprintf(file, " . ");
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if(pfd.cAlphaBits && pfd.iPixelType == PFD_TYPE_RGBA)
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fprintf(file, "%2d ", pfd.cAlphaBits);
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else fprintf(file, " . ");
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if(pfd.cAuxBuffers) fprintf(file, "%2d ", pfd.cAuxBuffers);
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else fprintf(file, " . ");
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if(pfd.cDepthBits) fprintf(file, "%2d ", pfd.cDepthBits);
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else fprintf(file, " . ");
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if(pfd.cStencilBits) fprintf(file, "%2d ", pfd.cStencilBits);
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else fprintf(file, " . ");
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if(pfd.cAccumBits) fprintf(file, "%3d ", pfd.cAccumBits);
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else fprintf(file, " . ");
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if(pfd.cAccumRedBits) fprintf(file, "%2d ", pfd.cAccumRedBits);
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else fprintf(file, " . ");
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if(pfd.cAccumGreenBits) fprintf(file, "%2d ", pfd.cAccumGreenBits);
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else fprintf(file, " . ");
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if(pfd.cAccumBlueBits) fprintf(file, "%2d ", pfd.cAccumBlueBits);
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else fprintf(file, " . ");
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if(pfd.cAccumAlphaBits) fprintf(file, "%2d ", pfd.cAccumAlphaBits);
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else fprintf(file, " . ");
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/* no multisample in win32 */
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fprintf(file, " . .\n");
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}
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/* print table footer */
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fprintf(file, "-----------------------------------------------------------------------------\n");
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fprintf(file, " visual x bf lv rg d st ge ge r g b a ax dp st accum buffs ms \n");
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fprintf(file, " id dep tp sp sz l ci b ro ne ac sz sz sz sz bf th cl sz r g b a ns b\n");
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fprintf(file, "-----------------------------------------------------------------------------\n");
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}
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else /* verbose */
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{
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fprintf(file, "\n");
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/* loop through all the pixel formats */
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for(i = 1; i <= maxpf; i++)
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{
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DescribePixelFormat(hDC, i, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
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/* only describe this format if it supports OpenGL */
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if(!(pfd.dwFlags & PFD_SUPPORT_OPENGL)
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|| (drawableonly && !(pfd.dwFlags & PFD_DRAW_TO_WINDOW))) continue;
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fprintf(file, "Visual ID: %2d depth=%d class=%s\n", i, pfd.cDepthBits,
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pfd.cColorBits <= 8 ? "PseudoColor" : "TrueColor");
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fprintf(file, " bufferSize=%d level=%d renderType=%s doubleBuffer=%d stereo=%d\n", pfd.cColorBits, pfd.bReserved, pfd.iPixelType == PFD_TYPE_RGBA ? "rgba" : "ci", pfd.dwFlags & PFD_DOUBLEBUFFER, pfd.dwFlags & PFD_STEREO);
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fprintf(file, " generic=%d generic accelerated=%d\n", (pfd.dwFlags & PFD_GENERIC_FORMAT) == PFD_GENERIC_FORMAT, (pfd.dwFlags & PFD_GENERIC_ACCELERATED) == PFD_GENERIC_ACCELERATED);
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fprintf(file, " rgba: redSize=%d greenSize=%d blueSize=%d alphaSize=%d\n", pfd.cRedBits, pfd.cGreenBits, pfd.cBlueBits, pfd.cAlphaBits);
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fprintf(file, " auxBuffers=%d depthSize=%d stencilSize=%d\n", pfd.cAuxBuffers, pfd.cDepthBits, pfd.cStencilBits);
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fprintf(file, " accum: redSize=%d greenSize=%d blueSize=%d alphaSize=%d\n", pfd.cAccumRedBits, pfd.cAccumGreenBits, pfd.cAccumBlueBits, pfd.cAccumAlphaBits);
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fprintf(file, " multiSample=%d multisampleBuffers=%d\n", 0, 0);
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fprintf(file, " Opaque.\n");
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}
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}
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}
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LONG WINAPI
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WindowProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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static PAINTSTRUCT ps;
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switch(uMsg)
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{
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case WM_PAINT:
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BeginPaint(hWnd, &ps);
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EndPaint(hWnd, &ps);
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return 0;
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case WM_SIZE:
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//glViewport(0, 0, LOWORD(lParam), HIWORD(lParam));
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PostMessage(hWnd, WM_PAINT, 0, 0);
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return 0;
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case WM_CHAR:
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switch (wParam)
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{
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case 27:
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PostQuitMessage(0);
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break;
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}
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return 0;
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case WM_CLOSE:
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PostQuitMessage(0);
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return 0;
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}
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return DefWindowProc(hWnd, uMsg, wParam, lParam);
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}
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HWND
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CreateGLWindow (char* title, int x, int y, int width, int height,
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BYTE type, DWORD flags)
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{
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int pf;
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HDC hDC;
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HWND hWnd;
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WNDCLASS wc;
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PIXELFORMATDESCRIPTOR pfd;
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static HINSTANCE hInstance = 0;
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/* only register the window class once - use hInstance as a flag. */
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if (!hInstance)
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{
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hInstance = GetModuleHandle(NULL);
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wc.style = CS_OWNDC;
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wc.lpfnWndProc = (WNDPROC)WindowProc;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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wc.hInstance = hInstance;
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wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
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wc.hCursor = LoadCursor(NULL, IDC_ARROW);
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wc.hbrBackground = NULL;
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wc.lpszMenuName = NULL;
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wc.lpszClassName = "OpenGL";
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if (!RegisterClass(&wc))
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{
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MessageBox(NULL, "RegisterClass() failed: "
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"Cannot register window class.", "Error", MB_OK);
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return NULL;
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}
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}
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hWnd = CreateWindow("OpenGL", title, WS_OVERLAPPEDWINDOW |
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WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
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x, y, width, height, NULL, NULL, hInstance, NULL);
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if (hWnd == NULL)
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{
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MessageBox(NULL, "CreateWindow() failed: Cannot create a window.",
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"Error", MB_OK);
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return NULL;
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}
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hDC = GetDC(hWnd);
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/* there is no guarantee that the contents of the stack that become
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the pfd are zeroed, therefore _make sure_ to clear these bits. */
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memset(&pfd, 0, sizeof(pfd));
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pfd.nSize = sizeof(pfd);
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pfd.nVersion = 1;
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pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | flags;
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//pfd.iPixelType = type;
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//pfd.cColorBits = 32;
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pf = ChoosePixelFormat(hDC, &pfd);
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if (pf == 0)
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{
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fprintf(stderr, "ChoosePixelFormat() failed - trying with Pixelformat 1!\n");
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pf = 1;
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}
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if (SetPixelFormat(hDC, pf, &pfd) == FALSE)
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{
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fprintf(stderr, "SetPixelFormat(%d) failed! No Renderer data will be available!\n", pf);
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}
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else
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{
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DescribePixelFormat(hDC, pf, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
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if (pfd.cColorBits == 0)
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fprintf(stderr, "SetPixelFormat(%d) returned pfd with 0 colorbits - assuming invalid!\n", pf);
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else
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pixelformatok = 1;
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}
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// no effect (because of CS_OWNDC)
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ReleaseDC(hWnd, hDC);
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return hWnd;
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}
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/* do the magic to separate all extensions with comma's, except
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for the last one that _may_ terminate in a space. */
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void PrintExtensions (char* s)
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{
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char t[80];
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int i=0;
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char* p;
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t[79] = '\0';
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while (*s)
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{
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t[i++] = *s;
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if(*s == ' ')
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{
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if (*(s+1) != '\0') {
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t[i-1] = ',';
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t[i] = ' ';
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p = &t[i++];
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}
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else /* zoinks! last one terminated in a space! */
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{
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t[i-1] = '\0';
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}
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}
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if(i > 80 - 5)
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{
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*p = t[i] = '\0';
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fprintf(file, " %s\n", t);
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p++;
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i = strlen(p);
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strcpy(t, p);
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}
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s++;
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}
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t[i] = '\0';
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fprintf(file, " %s.\n", t);
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}
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int
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main (int argc, char** argv)
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{
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HDC hDC;
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HGLRC hRC;
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HWND hWnd;
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MSG msg;
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while (--argc)
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{
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if (strcmp("-h", argv[argc]) == 0) {
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//printf("Usage: wglinfo [-v] [-t] [-m] [-h] [-dispay <dname>] [-nfbc] [-fpcinfo]\n");
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fprintf(stderr, "Usage: wglinfo [-d] [-v] [-w] [-s] [-h]\n");
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fprintf(stderr, " -d: no context (pixelformat enumeration, but no render string)\n");
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fprintf(stderr, " -v: print visuals info in verbose form\n");
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/*
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printf(" -t: Print verbose table (not implemented on Win32)\n");
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printf(" -m: Don't print mid table headers (in long tables). (not on Win32)\n");
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printf(" -display <dname>: Print GLX visuals on specified server. (not on Win32)\n");
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printf(" -nfbc: Don't use fbconfig extension (not available on Win32)\n");
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printf(" -fbcinfo: print out additional fbconfig information (not on Win32)\n");
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*/
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fprintf(stderr, " -w: show only visuals that can draw to the screen\n");
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fprintf(stderr, " -s: display to stdout instead of wglinfo.txt\n");
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fprintf(stderr, " -h: this screen\n");
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return 1;
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}
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else if (strcmp("-v", argv[argc]) == 0)
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{
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verbose = 1;
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}
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else if (strcmp("-w", argv[argc]) == 0)
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{
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drawableonly = 1;
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}
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else if (strcmp("-d", argv[argc]) == 0)
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{
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dontcreatecontext = 1;
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}
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else if (strcmp("-s", argv[argc]) == 0)
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{
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displaystdout = 1;
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}
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}
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if (!displaystdout) file = fopen("wglinfo.txt", "w");
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if (file == NULL) file = stdout;
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hWnd = CreateGLWindow("wglinfo", 0, 0, 100, 100, PFD_TYPE_RGBA, PFD_DOUBLEBUFFER);
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if (hWnd == NULL) return 1;
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hDC = GetDC(hWnd);
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pixelformatok = pixelformatok && !dontcreatecontext;
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if (pixelformatok)
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{
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hRC = wglCreateContext(hDC);
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wglMakeCurrent(hDC, hRC);
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}
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ShowWindow(hWnd, SW_HIDE);
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if (pixelformatok)
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{
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/* output header information */
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/* OpenGL extensions */
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/*
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printf("display: N/A\n");
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printf("server wgl vendor string: N/A\n");
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printf("server wgl version string: N/A\n");
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printf("server wgl extensions (WGL_): N/A\n");
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printf("client wgl version: N/A\n");
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printf("client wgl extensions (WGL_): none\n");
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*/
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fprintf(file, "OpenGL vendor string: %s\n", glGetString(GL_VENDOR));
|
||||
fprintf(file, "OpenGL renderer string: %s\n", glGetString(GL_RENDERER));
|
||||
fprintf(file, "OpenGL version string: %s\n", glGetString(GL_VERSION));
|
||||
fprintf(file, "OpenGL extensions (GL_): \n");
|
||||
PrintExtensions((char*)glGetString(GL_EXTENSIONS));
|
||||
|
||||
/* GLU extensions */
|
||||
fprintf(file, "GLU version string: %s\n", gluGetString(GLU_VERSION));
|
||||
fprintf(file, "GLU extensions (GLU_): \n");
|
||||
PrintExtensions((char*)gluGetString(GLU_EXTENSIONS));
|
||||
|
||||
/* WGL extensions */
|
||||
wglGetExtensionsStringARB = (wglGetExtensionsStringARBPROC)
|
||||
wglGetProcAddress("wglGetExtensionsStringARB");
|
||||
if (!wglGetExtensionsStringARB)
|
||||
{
|
||||
wglGetExtensionsStringEXT = (wglGetExtensionsStringEXTPROC)
|
||||
wglGetProcAddress("wglGetExtensionsStringEXT");
|
||||
}
|
||||
if (wglGetExtensionsStringARB || wglGetExtensionsStringEXT)
|
||||
{
|
||||
//fprintf(file, "WGL vendor string: %s\n", );
|
||||
//fprintf(file, "WGL version string: %s\n", );
|
||||
fprintf(file, "WGL extensions (WGL_): \n");
|
||||
if (wglGetExtensionsStringARB)
|
||||
PrintExtensions(wglGetExtensionsStringARB ? (char*)wglGetExtensionsStringARB(hDC):
|
||||
(char*)wglGetExtensionsStringARB(hDC));
|
||||
}
|
||||
}
|
||||
|
||||
/* enumerate all the formats */
|
||||
wglChoosePixelFormatARB =
|
||||
(wglChoosePixelFormatARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
|
||||
wglGetPixelFormatAttribivARB =
|
||||
(wglGetPixelFormatAttribivARBPROC)wglGetProcAddress("wglGetPixelFormatAttribivARB");
|
||||
if (wglChoosePixelFormatARB != NULL && wglGetPixelFormatAttribivARB != NULL)
|
||||
{
|
||||
int attrib[16], value[16], pf;
|
||||
unsigned int c;
|
||||
attrib[0] = WGL_DRAW_TO_PBUFFER_ARB;
|
||||
attrib[1] = GL_TRUE;
|
||||
attrib[2] = 0;
|
||||
wglChoosePixelFormatARB(hDC, attrib, 0, 1, &pf, &c);
|
||||
attrib[0] = WGL_NUMBER_PIXEL_FORMATS_ARB;
|
||||
wglGetPixelFormatAttribivARB(hDC, 0, 0, 1, attrib, value);
|
||||
}
|
||||
VisualInfo(hDC, verbose);
|
||||
|
||||
PostQuitMessage(0);
|
||||
while (GetMessage(&msg, hWnd, 0, 0))
|
||||
{
|
||||
TranslateMessage(&msg);
|
||||
DispatchMessage(&msg);
|
||||
}
|
||||
|
||||
if (pixelformatok) wglMakeCurrent(NULL, NULL);
|
||||
ReleaseDC(hWnd, hDC);
|
||||
if (pixelformatok) wglDeleteContext(hRC);
|
||||
DestroyWindow(hWnd);
|
||||
|
||||
if (file != stdout) fclose(file);
|
||||
|
||||
return msg.wParam;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user