162 lines
3.8 KiB
C
162 lines
3.8 KiB
C
/*
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* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VMWARE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* Measure SwapBuffers.
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*
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* Keith Whitwell
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* 22 Sep 2009
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*/
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#include "glmain.h"
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#include "common.h"
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int WinWidth = 100, WinHeight = 100;
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int real_WinWidth, real_WinHeight; /* don't know whats going on here */
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static GLuint VBO;
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struct vertex
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{
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GLfloat x, y;
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};
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static const struct vertex vertices[4] = {
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{ -1.0, -1.0 },
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{ 1.0, -1.0 },
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{ 1.0, 1.0 },
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{ -1.0, 1.0 }
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};
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/** Called from test harness/main */
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void
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PerfInit(void)
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{
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/* setup VBO w/ vertex data */
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glGenBuffersARB(1, &VBO);
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glBindBufferARB(GL_ARRAY_BUFFER_ARB, VBO);
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glBufferDataARB(GL_ARRAY_BUFFER_ARB,
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sizeof(vertices), vertices, GL_STATIC_DRAW_ARB);
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glVertexPointer(2, GL_FLOAT, sizeof(struct vertex), (void *) 0);
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glEnableClientState(GL_VERTEX_ARRAY);
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/* misc GL state */
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glAlphaFunc(GL_ALWAYS, 0.0);
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}
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static void
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SwapNaked(unsigned count)
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{
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unsigned i;
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for (i = 0; i < count; i++) {
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PerfSwapBuffers();
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}
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}
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static void
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SwapClear(unsigned count)
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{
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unsigned i;
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for (i = 0; i < count; i++) {
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glClear(GL_COLOR_BUFFER_BIT);
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PerfSwapBuffers();
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}
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}
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static void
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SwapClearPoint(unsigned count)
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{
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unsigned i;
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for (i = 0; i < count; i++) {
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glClear(GL_COLOR_BUFFER_BIT);
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glDrawArrays(GL_POINTS, 0, 4);
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PerfSwapBuffers();
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}
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}
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static const struct {
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unsigned w;
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unsigned h;
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} sizes[] = {
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{ 320, 240 },
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{ 640, 480 },
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{ 1024, 768 },
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{ 1200, 1024 },
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{ 1600, 1200 }
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};
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void
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PerfNextRound(void)
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{
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static unsigned i;
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if (i < sizeof(sizes) / sizeof(sizes[0]) &&
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PerfReshapeWindow( sizes[i].w, sizes[i].h ))
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{
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perf_printf("Reshape %dx%d\n", sizes[i].w, sizes[i].h);
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real_WinWidth = sizes[i].w;
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real_WinHeight = sizes[i].h;
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i++;
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}
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else {
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exit(0);
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}
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}
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/** Called from test harness/main */
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void
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PerfDraw(void)
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{
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double rate0;
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rate0 = PerfMeasureRate(SwapNaked);
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perf_printf(" Swapbuffers %dx%d: %s swaps/second",
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real_WinWidth, real_WinHeight,
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PerfHumanFloat(rate0));
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perf_printf(" %s pixels/second\n",
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PerfHumanFloat(rate0 * real_WinWidth * real_WinHeight));
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rate0 = PerfMeasureRate(SwapClear);
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perf_printf(" Swap/Clear %dx%d: %s swaps/second",
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real_WinWidth, real_WinHeight,
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PerfHumanFloat(rate0));
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perf_printf(" %s pixels/second\n",
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PerfHumanFloat(rate0 * real_WinWidth * real_WinHeight));
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rate0 = PerfMeasureRate(SwapClearPoint);
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perf_printf(" Swap/Clear/Draw %dx%d: %s swaps/second",
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real_WinWidth, real_WinHeight,
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PerfHumanFloat(rate0));
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perf_printf(" %s pixels/second\n",
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PerfHumanFloat(rate0 * real_WinWidth * real_WinHeight));
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}
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