+++ /dev/null
-/*
- * 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 glCopyTex[Sub]Image() rate.
- * Create a large, off-screen framebuffer object for rendering and
- * copying the texture data from it since we can't make really large
- * on-screen windows.
- *
- * Brian Paul
- * 22 Sep 2009
- */
-
-#include <string.h>
-#include "glmain.h"
-#include "common.h"
-
-int WinWidth = 100, WinHeight = 100;
-
-static GLuint VBO, FBO, RBO, Tex;
-
-const GLsizei MinSize = 16, MaxSize = 4096;
-static GLsizei TexSize;
-
-static const GLboolean DrawPoint = GL_TRUE;
-static const GLboolean TexSubImage4 = GL_FALSE;
-
-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)
-{
- const GLenum filter = GL_LINEAR;
- GLenum stat;
-
- if (!PerfExtensionSupported("GL_EXT_framebuffer_object")) {
- perf_printf("copytex: GL_EXT_framebuffer_object not supported\n");
- exit(0);
- }
-
- /* setup VBO */
- 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);
-
- /* setup texture */
- glGenTextures(1, &Tex);
- glBindTexture(GL_TEXTURE_2D, Tex);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
- glEnable(GL_TEXTURE_2D);
-
- /* setup rbo */
- glGenRenderbuffersEXT(1, &RBO);
- glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, RBO);
- glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA, MaxSize, MaxSize);
-
- /* setup fbo */
- glGenFramebuffersEXT(1, &FBO);
- glBindFramebufferEXT(GL_FRAMEBUFFER, FBO);
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
- GL_COLOR_ATTACHMENT0_EXT,
- GL_RENDERBUFFER_EXT, RBO);
-
- stat = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
- if (stat != GL_FRAMEBUFFER_COMPLETE_EXT) {
- perf_printf("fboswitch: Error: incomplete FBO!\n");
- exit(1);
- }
-
- /* clear the FBO */
- glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
- glViewport(0, 0, MaxSize, MaxSize);
- glClear(GL_COLOR_BUFFER_BIT);
-}
-
-
-static void
-CopyTexImage(unsigned count)
-{
- unsigned i;
- for (i = 1; i < count; i++) {
- /* draw something */
- if (DrawPoint)
- glDrawArrays(GL_POINTS, 0, 1);
-
- /* copy whole texture */
- glCopyTexImage2D(GL_TEXTURE_2D, 0,
- GL_RGBA, 0, 0, TexSize, TexSize, 0);
- }
- glFinish();
-}
-
-
-static void
-CopyTexSubImage(unsigned count)
-{
- unsigned i;
- for (i = 1; i < count; i++) {
- /* draw something */
- if (DrawPoint)
- glDrawArrays(GL_POINTS, 0, 1);
-
- /* copy sub texture */
- if (TexSubImage4) {
- /* four sub-copies */
- GLsizei half = TexSize / 2;
- /* lower-left */
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
- 0, 0, 0, 0, half, half);
- /* lower-right */
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
- half, 0, half, 0, half, half);
- /* upper-left */
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
- 0, half, 0, half, half, half);
- /* upper-right */
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
- half, half, half, half, half, half);
- }
- else {
- /* one big copy */
- glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
- 0, 0, 0, 0, TexSize, TexSize);
- }
- }
- glFinish();
-}
-
-
-/** Called from test harness/main */
-void
-PerfNextRound(void)
-{
-}
-
-
-/** Called from test harness/main */
-void
-PerfDraw(void)
-{
- double rate, mbPerSec;
- GLint sub, maxTexSize;
-
- glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTexSize);
-
- /* loop over whole/sub tex copy */
- for (sub = 0; sub < 2; sub++) {
-
- /* loop over texture sizes */
- for (TexSize = MinSize; TexSize <= MaxSize; TexSize *= 4) {
-
- if (TexSize <= maxTexSize) {
- GLint bytesPerImage = 4 * TexSize * TexSize;
-
- if (sub == 0)
- rate = PerfMeasureRate(CopyTexImage);
- else {
- /* setup empty dest texture */
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
- TexSize, TexSize, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- rate = PerfMeasureRate(CopyTexSubImage);
- }
-
- mbPerSec = rate * bytesPerImage / (1024.0 * 1024.0);
- }
- else {
- rate = 0.0;
- mbPerSec = 0.0;
- }
-
- perf_printf(" glCopyTex%sImage(%d x %d): %.1f copies/sec, %.1f Mpixels/sec\n",
- (sub ? "Sub" : ""), TexSize, TexSize, rate, mbPerSec);
- }
- }
-
- exit(0);
-}
projects / mesa.git / blobdiff