diff options
Diffstat (limited to 'progs/perf/genmipmap.c')
-rw-r--r-- | progs/perf/genmipmap.c | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/progs/perf/genmipmap.c b/progs/perf/genmipmap.c deleted file mode 100644 index 20e2fa3410..0000000000 --- a/progs/perf/genmipmap.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - * Copyright (C) 2009 VMware, Inc. 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 - * VMWARE 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. - */ - -/** - * Measure glGenerateMipmap() speed. - * - * Brian Paul - * 24 Sep 2009 - */ - -#include <string.h> -#include <stdio.h> -#include "glmain.h" -#include "common.h" - - -int WinWidth = 100, WinHeight = 100; - -static GLboolean DrawPoint = GL_TRUE; -static GLuint VBO; -static GLuint TexObj = 0; -static GLint BaseLevel, MaxLevel; - -struct vertex -{ - GLfloat x, y, s, t; -}; - -static const struct vertex vertices[1] = { - { 0.0, 0.0, 0.5, 0.5 }, -}; - -#define VOFFSET(F) ((void *) offsetof(struct vertex, F)) - -/** Called from test harness/main */ -void -PerfInit(void) -{ - if (!PerfExtensionSupported("GL_ARB_framebuffer_object")) { - printf("Sorry, this test requires GL_ARB_framebuffer_object\n"); - exit(1); - } - - /* setup VBO w/ vertex data */ - glGenBuffersARB(1, &VBO); - glBindBufferARB(GL_ARRAY_BUFFER_ARB, VBO); - glBufferDataARB(GL_ARRAY_BUFFER_ARB, - sizeof(vertices), vertices, GL_STATIC_DRAW_ARB); - glVertexPointer(2, GL_FLOAT, sizeof(struct vertex), VOFFSET(x)); - glTexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), VOFFSET(s)); - glEnableClientState(GL_VERTEX_ARRAY); - glEnableClientState(GL_TEXTURE_COORD_ARRAY); - - glGenTextures(1, &TexObj); - glBindTexture(GL_TEXTURE_2D, TexObj); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glEnable(GL_TEXTURE_2D); -} - - -static void -GenMipmap(unsigned count) -{ - unsigned i; - for (i = 0; i < count; i++) { - GLubyte texel[4]; - texel[0] = texel[1] = texel[2] = texel[3] = i & 0xff; - /* dirty the base image */ - glTexSubImage2D(GL_TEXTURE_2D, BaseLevel, - 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, texel); - glGenerateMipmap(GL_TEXTURE_2D); - if (DrawPoint) - glDrawArrays(GL_POINTS, 0, 1); - } - glFinish(); -} - - -/** Called from test harness/main */ -void -PerfNextRound(void) -{ -} - - -/** Called from test harness/main */ -void -PerfDraw(void) -{ - const GLint NumLevels = 12; - const GLint TexWidth = 2048, TexHeight = 2048; - GLubyte *img; - double rate; - - /* Make 2K x 2K texture */ - img = (GLubyte *) malloc(TexWidth * TexHeight * 4); - memset(img, 128, TexWidth * TexHeight * 4); - glTexImage2D(GL_TEXTURE_2D, 0, - GL_RGBA, TexWidth, TexHeight, 0, - GL_RGBA, GL_UNSIGNED_BYTE, img); - free(img); - - perf_printf("Texture level[0] size: %d x %d, %d levels\n", - TexWidth, TexHeight, NumLevels); - - /* loop over base levels 0, 2, 4 */ - for (BaseLevel = 0; BaseLevel <= 4; BaseLevel += 2) { - - /* loop over max level */ - for (MaxLevel = NumLevels; MaxLevel > BaseLevel; MaxLevel--) { - - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, BaseLevel); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, MaxLevel); - - rate = PerfMeasureRate(GenMipmap); - - perf_printf(" glGenerateMipmap(levels %d..%d): %.2f gens/sec\n", - BaseLevel + 1, MaxLevel, rate); - } - } - - exit(0); -} |