diff options
Diffstat (limited to 'progs/perf/readpixels.c')
| -rw-r--r-- | progs/perf/readpixels.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/progs/perf/readpixels.c b/progs/perf/readpixels.c deleted file mode 100644 index ac7dc426e9..0000000000 --- a/progs/perf/readpixels.c +++ /dev/null @@ -1,169 +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 glReadPixels speed. - * XXX also read into a PBO? - * XXX also read from FBOs? - * - * Brian Paul - * 23 Sep 2009 - */ - -#include <string.h> -#include <assert.h> -#include "glmain.h" -#include "common.h" - -int WinWidth = 1000, WinHeight = 1000; - -static GLuint VBO; - -static const GLboolean DrawPoint = GL_TRUE; -static const GLboolean BufferSubDataInHalves = GL_TRUE; - -static const GLfloat Vertex0[2] = { 0.0, 0.0 }; - -static GLenum HaveDepthStencil; - -static GLenum ReadFormat, ReadType; -static GLint ReadWidth, ReadHeight; -static GLvoid *ReadBuffer; - - -/** Called from test harness/main */ -void -PerfInit(void) -{ - /* setup VBO */ - glGenBuffersARB(1, &VBO); - glBindBufferARB(GL_ARRAY_BUFFER_ARB, VBO); - glBufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(Vertex0), Vertex0, GL_STATIC_DRAW_ARB); - glVertexPointer(2, GL_FLOAT, sizeof(Vertex0), (void *) 0); - glEnableClientState(GL_VERTEX_ARRAY); - - glPixelStorei(GL_PACK_ALIGNMENT, 1); - - HaveDepthStencil = PerfExtensionSupported("GL_EXT_packed_depth_stencil"); - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); - glEnable(GL_DEPTH_TEST); - glEnable(GL_STENCIL_TEST); -} - - -static void -ReadPixels(unsigned count) -{ - unsigned i; - for (i = 0; i < count; i++) { - /* read from random pos */ - GLint x, y; - - x = WinWidth - ReadWidth; - y = WinHeight - ReadHeight; - if (x > 0) - x = rand() % x; - if (y > 0) - y = rand() % y; - - if (DrawPoint) - glDrawArrays(GL_POINTS, 0, 1); - - glReadPixels(x, y, ReadWidth, ReadHeight, - ReadFormat, ReadType, ReadBuffer); - } - glFinish(); -} - - -static const GLsizei Sizes[] = { - 10, - 100, - 500, - 1000, - 0 -}; - - -static const struct { - GLenum format; - GLenum type; - const char *name; - GLuint pixel_size; -} DstFormats[] = { - { GL_RGBA, GL_UNSIGNED_BYTE, "RGBA/ubyte", 4 }, - { GL_BGRA, GL_UNSIGNED_BYTE, "BGRA/ubyte", 4 }, - { GL_RGB, GL_UNSIGNED_SHORT_5_6_5, "RGB/565", 2 }, - { GL_LUMINANCE, GL_UNSIGNED_BYTE, "L/ubyte", 1 }, - { GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, "Z/uint", 4 }, - { GL_DEPTH_STENCIL_EXT, GL_UNSIGNED_INT_24_8_EXT, "Z+S/uint", 4 }, - { 0, 0, NULL, 0 } -}; - - - -/** Called from test harness/main */ -void -PerfNextRound(void) -{ -} - - -/** Called from test harness/main */ -void -PerfDraw(void) -{ - double rate, mbPerSec; - int fmt, sz; - - /* loop over formats */ - for (fmt = 0; DstFormats[fmt].format; fmt++) { - ReadFormat = DstFormats[fmt].format; - ReadType = DstFormats[fmt].type; - - /* loop over sizes */ - for (sz = 0; Sizes[sz]; sz++) { - int imgSize; - - ReadWidth = ReadHeight = Sizes[sz]; - imgSize = ReadWidth * ReadHeight * DstFormats[fmt].pixel_size; - ReadBuffer = malloc(imgSize); - - if (ReadFormat == GL_DEPTH_STENCIL_EXT && !HaveDepthStencil) { - rate = 0.0; - mbPerSec = 0.0; - } - else { - rate = PerfMeasureRate(ReadPixels); - mbPerSec = rate * imgSize / (1024.0 * 1024.0); - } - - perf_printf("glReadPixels(%d x %d, %s): %.1f images/sec, %.1f Mpixels/sec\n", - ReadWidth, ReadHeight, - DstFormats[fmt].name, rate, mbPerSec); - - free(ReadBuffer); - } - } - - exit(0); -} |