Attachment 49823 Details for Bug 34969 – modified vertexrate.c

modified vertexrate.c

vertexrate.c (text/plain), 7.05 KB, created by Andrew Randrianasulu on 2011-08-02 04:07:19 UTC

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Creator: Andrew Randrianasulu

Created: 2011-08-02 04:07:19 UTC

Size: 7.05 KB

patch

obsolete

>/*
> * 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 simple vertex processing rate via:
> *  - immediate mode
> *  - vertex arrays
> *  - VBO vertex arrays
> *  - glDrawElements
> *  - VBO glDrawElements
> *  - glDrawRangeElements
> *  - VBO glDrawRangeElements
> *
> * Brian Paul
> * 16 Sep 2009
> */
>
>#include <assert.h>
>#include <string.h>
>#include "glmain.h"
>#include "common.h"
>
>
>#define MAX_VERTS (1 * 1263) /* 1263 safe for hw tnl on nv43 */
>
>/** glVertex2/3/4 size */
>#define VERT_SIZE 4
>
>int WinWidth = 500, WinHeight = 500;
>
>static GLuint VertexBO, ElementBO;
>
>static unsigned NumVerts = MAX_VERTS;
>static unsigned VertBytes = VERT_SIZE * sizeof(float);
>static float *VertexData = NULL;
>
>static unsigned NumElements = MAX_VERTS;
>static GLuint *Elements = NULL;
>
>
>/**
> * Load VertexData buffer with a 2-D grid of points in the range [-1,1]^2.
> */
>static void
>InitializeVertexData(void)
>{
>   unsigned i;
>   float x = -1.0, y = -1.0;
>   float dx = 2.0 / 100;
>   float dy = 2.0 / 100;
>
>   VertexData = (float *) malloc(NumVerts * VertBytes);
>
>   for (i = 0; i < NumVerts; i++) {
>      VertexData[i * VERT_SIZE + 0] = x;
>      VertexData[i * VERT_SIZE + 1] = y;
>      VertexData[i * VERT_SIZE + 2] = 0.0;
>      VertexData[i * VERT_SIZE + 3] = 1.0;
>      x += dx;
>      if (x > 1.0) {
>         x = -1.0;
>         y += dy;
>      }
>   }
>
>   Elements = (GLuint *) malloc(NumVerts * sizeof(GLuint));
>
>   for (i = 0; i < NumVerts; i++) {
>      Elements[i] = NumVerts - i - 1;
>   }
>}
>
>
>/** Called from test harness/main */
>void
>PerfInit(void)
>{
>   InitializeVertexData();
>
>   /* setup VertexBO */
>   glGenBuffersARB(1, &VertexBO);
>   glBindBufferARB(GL_ARRAY_BUFFER_ARB, VertexBO);
>   glBufferDataARB(GL_ARRAY_BUFFER_ARB,
>                   NumVerts * VertBytes, VertexData, GL_STATIC_DRAW_ARB);
>   glEnableClientState(GL_VERTEX_ARRAY);
>
>   /* setup ElementBO */
>   glGenBuffersARB(1, &ElementBO);
>   glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, ElementBO);
>   glBufferDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB,
>                   NumElements * sizeof(GLuint), Elements, GL_STATIC_DRAW_ARB);
>}
>
>
>static void
>DrawImmediate(unsigned count)
>{
>   unsigned i;
>   glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, 0);
>   glBindBufferARB(GL_ARRAY_BUFFER, 0);
>   for (i = 0; i < count; i++) {
>      unsigned j;
>      glBegin(GL_POINTS);
>      for (j = 0; j < NumVerts; j++) {
>#if VERT_SIZE == 4
>         glVertex4fv(VertexData + j * 4);
>#elif VERT_SIZE == 3
>         glVertex3fv(VertexData + j * 3);
>#elif VERT_SIZE == 2
>         glVertex2fv(VertexData + j * 2);
>#else
>         abort();
>#endif
>      }
>      glEnd();
>   }
>   glFinish();
>   PerfSwapBuffers();
>}
>
>
>static void
>DrawArraysMem(unsigned count)
>{
>   unsigned i;
>   glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, 0);
>   glBindBufferARB(GL_ARRAY_BUFFER, 0);
>   glVertexPointer(VERT_SIZE, GL_FLOAT, VertBytes, VertexData);
>   for (i = 0; i < count; i++) {
>      glDrawArrays(GL_POINTS, 0, NumVerts);
>   }
>   glFinish();
>   PerfSwapBuffers();
>}
>
>
>static void
>DrawArraysVBO(unsigned count)
>{
>   unsigned i;
>   glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, 0);
>   glBindBufferARB(GL_ARRAY_BUFFER, VertexBO);
>   glVertexPointer(VERT_SIZE, GL_FLOAT, VertBytes, (void *) 0);
>   for (i = 0; i < count; i++) {
>      glDrawArrays(GL_POINTS, 0, NumVerts);
>   }
>   glFinish();
>   PerfSwapBuffers();
>}
>
>
>static void
>DrawElementsMem(unsigned count)
>{
>   unsigned i;
>   glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, 0);
>   glBindBufferARB(GL_ARRAY_BUFFER, 0);
>   glVertexPointer(VERT_SIZE, GL_FLOAT, VertBytes, VertexData);
>   for (i = 0; i < count; i++) {
>      glDrawElements(GL_POINTS, NumVerts, GL_UNSIGNED_INT, Elements);
>   }
>   glFinish();
>   PerfSwapBuffers();
>}
>
>
>static void
>DrawElementsBO(unsigned count)
>{
>   unsigned i;
>   glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, ElementBO);
>   glBindBufferARB(GL_ARRAY_BUFFER, VertexBO);
>   glVertexPointer(VERT_SIZE, GL_FLOAT, VertBytes, (void *) 0);
>   for (i = 0; i < count; i++) {
>      glDrawElements(GL_POINTS, NumVerts, GL_UNSIGNED_INT, (void *) 0);
>   }
>   glFinish();
>   PerfSwapBuffers();
>}
>
>
>static void
>DrawRangeElementsMem(unsigned count)
>{
>   unsigned i;
>   glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, 0);
>   glBindBufferARB(GL_ARRAY_BUFFER, 0);
>   glVertexPointer(VERT_SIZE, GL_FLOAT, VertBytes, VertexData);
>   for (i = 0; i < count; i++) {
>      glDrawRangeElements(GL_POINTS, 0, NumVerts - 1,
>                          NumVerts, GL_UNSIGNED_INT, Elements);
>   }
>   glFinish();
>   PerfSwapBuffers();
>}
>
>
>static void
>DrawRangeElementsBO(unsigned count)
>{
>   unsigned i;
>   glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, ElementBO);
>   glBindBufferARB(GL_ARRAY_BUFFER, VertexBO);
>   glVertexPointer(VERT_SIZE, GL_FLOAT, VertBytes, (void *) 0);
>   for (i = 0; i < count; i++) {
>      glDrawRangeElements(GL_POINTS, 0, NumVerts - 1,
>                          NumVerts, GL_UNSIGNED_INT, (void *) 0);
>   }
>   glFinish();
>   PerfSwapBuffers();
>}
>
>void
>PerfNextRound(void)
>{
>}
>
>
>/** Called from test harness/main */
>void
>PerfDraw(void)
>{
>   double rate;
>
>   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
>
>   perf_printf("Vertex rate (%d x Vertex%df)\n", NumVerts, VERT_SIZE);
>/*
>   rate = PerfMeasureRate(DrawImmediate);
>   rate *= NumVerts;
>   perf_printf("  Immediate mode: %s verts/sec\n", PerfHumanFloat(rate));
>
>   rate = PerfMeasureRate(DrawArraysMem);
>   rate *= NumVerts;
>   perf_printf("  glDrawArrays: %s verts/sec\n", PerfHumanFloat(rate));
>
>   rate = PerfMeasureRate(DrawArraysVBO);
>   rate *= NumVerts;
>   perf_printf("  VBO glDrawArrays: %s verts/sec\n", PerfHumanFloat(rate));
>*/
>   rate = PerfMeasureRate(DrawElementsMem);
>   rate *= NumVerts;
>   perf_printf("  glDrawElements: %s verts/sec\n", PerfHumanFloat(rate));
>/*
>   rate = PerfMeasureRate(DrawElementsBO);
>   rate *= NumVerts;
>   perf_printf("  VBO glDrawElements: %s verts/sec\n", PerfHumanFloat(rate));
>
>   rate = PerfMeasureRate(DrawRangeElementsMem);
>   rate *= NumVerts;
>   perf_printf("  glDrawRangeElements: %s verts/sec\n", PerfHumanFloat(rate));
>
>   rate = PerfMeasureRate(DrawRangeElementsBO);
>   rate *= NumVerts;
>   perf_printf("  VBO glDrawRangeElements: %s verts/sec\n", PerfHumanFloat(rate));
>*/
>   exit(0);
>}

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Attachments on bug 34969: 44068 | 49119 | 49192 | 49332 | 49333 | 49334 | 49823 | 49824 | 53562

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