| /* |
| * 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 SwapBuffers. |
| * |
| * Keith Whitwell |
| * 22 Sep 2009 |
| */ |
| |
| #include "glmain.h" |
| #include "common.h" |
| |
| |
| int WinWidth = 100, WinHeight = 100; |
| int real_WinWidth, real_WinHeight; /* don't know whats going on here */ |
| |
| static GLuint VBO; |
| |
| struct vertex |
| { |
| GLfloat x, y; |
| }; |
| |
| static const struct vertex vertices[4] = { |
| { -1.0, -1.0 }, |
| { 1.0, -1.0 }, |
| { 1.0, 1.0 }, |
| { -1.0, 1.0 } |
| }; |
| |
| |
| /** Called from test harness/main */ |
| void |
| PerfInit(void) |
| { |
| /* 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), (void *) 0); |
| glEnableClientState(GL_VERTEX_ARRAY); |
| |
| /* misc GL state */ |
| glAlphaFunc(GL_ALWAYS, 0.0); |
| } |
| |
| static void |
| SwapNaked(unsigned count) |
| { |
| unsigned i; |
| for (i = 0; i < count; i++) { |
| PerfSwapBuffers(); |
| } |
| } |
| |
| |
| static void |
| SwapClear(unsigned count) |
| { |
| unsigned i; |
| for (i = 0; i < count; i++) { |
| glClear(GL_COLOR_BUFFER_BIT); |
| PerfSwapBuffers(); |
| } |
| } |
| |
| static void |
| SwapClearPoint(unsigned count) |
| { |
| unsigned i; |
| for (i = 0; i < count; i++) { |
| glClear(GL_COLOR_BUFFER_BIT); |
| glDrawArrays(GL_POINTS, 0, 4); |
| PerfSwapBuffers(); |
| } |
| } |
| |
| |
| static const struct { |
| unsigned w; |
| unsigned h; |
| } sizes[] = { |
| { 320, 240 }, |
| { 640, 480 }, |
| { 1024, 768 }, |
| { 1200, 1024 }, |
| { 1600, 1200 } |
| }; |
| |
| void |
| PerfNextRound(void) |
| { |
| static unsigned i; |
| |
| if (i < sizeof(sizes) / sizeof(sizes[0]) && |
| PerfReshapeWindow( sizes[i].w, sizes[i].h )) |
| { |
| perf_printf("Reshape %dx%d\n", sizes[i].w, sizes[i].h); |
| real_WinWidth = sizes[i].w; |
| real_WinHeight = sizes[i].h; |
| i++; |
| } |
| else { |
| exit(0); |
| } |
| } |
| |
| |
| |
| |
| /** Called from test harness/main */ |
| void |
| PerfDraw(void) |
| { |
| double rate0; |
| |
| rate0 = PerfMeasureRate(SwapNaked); |
| perf_printf(" Swapbuffers %dx%d: %s swaps/second", |
| real_WinWidth, real_WinHeight, |
| PerfHumanFloat(rate0)); |
| perf_printf(" %s pixels/second\n", |
| PerfHumanFloat(rate0 * real_WinWidth * real_WinHeight)); |
| |
| |
| |
| rate0 = PerfMeasureRate(SwapClear); |
| perf_printf(" Swap/Clear %dx%d: %s swaps/second", |
| real_WinWidth, real_WinHeight, |
| PerfHumanFloat(rate0)); |
| perf_printf(" %s pixels/second\n", |
| PerfHumanFloat(rate0 * real_WinWidth * real_WinHeight)); |
| |
| |
| rate0 = PerfMeasureRate(SwapClearPoint); |
| perf_printf(" Swap/Clear/Draw %dx%d: %s swaps/second", |
| real_WinWidth, real_WinHeight, |
| PerfHumanFloat(rate0)); |
| perf_printf(" %s pixels/second\n", |
| PerfHumanFloat(rate0 * real_WinWidth * real_WinHeight)); |
| } |
| |