From a7b2659f02c503bd2110b9fd9799efc113807ad9 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Mon, 21 Sep 2009 16:55:12 +0100 Subject: progs/perf: add first attempt at a swapbuffers rate test This is pretty ugly as the original framework assumed you'd set a single window size at startup and keep it throughout, but for swapbuffers you want to test the rate at various window sizes. With luck a nicer solution can be found, but this at least lays out a marker. --- progs/perf/Makefile | 1 + progs/perf/SConscript | 1 + progs/perf/drawoverhead.c | 4 ++ progs/perf/glmain.c | 29 ++++---- progs/perf/glmain.h | 6 ++ progs/perf/swapbuffers.c | 167 ++++++++++++++++++++++++++++++++++++++++++++++ progs/perf/teximage.c | 4 ++ progs/perf/vbo.c | 4 ++ progs/perf/vertexrate.c | 5 ++ 9 files changed, 207 insertions(+), 14 deletions(-) create mode 100644 progs/perf/swapbuffers.c (limited to 'progs') diff --git a/progs/perf/Makefile b/progs/perf/Makefile index b2fe1af26a..e8fe720eaa 100644 --- a/progs/perf/Makefile +++ b/progs/perf/Makefile @@ -16,6 +16,7 @@ LDLIBS = $(LIBS) PROG_SOURCES = \ drawoverhead.c \ fill.c \ + swapbuffers.c \ teximage.c \ vbo.c \ vertexrate.c \ diff --git a/progs/perf/SConscript b/progs/perf/SConscript index 98a4112dba..fa43d73d96 100644 --- a/progs/perf/SConscript +++ b/progs/perf/SConscript @@ -11,6 +11,7 @@ progs = [ 'drawoverhead', 'fill', 'teximage', + 'swapbuffers', 'vbo', 'vertexrate', ] diff --git a/progs/perf/drawoverhead.c b/progs/perf/drawoverhead.c index d581f4b187..0de549b0dc 100644 --- a/progs/perf/drawoverhead.c +++ b/progs/perf/drawoverhead.c @@ -108,6 +108,10 @@ DrawStateChange(unsigned count) glFinish(); } +void +PerfNextRound(void) +{ +} /** Called from test harness/main */ void diff --git a/progs/perf/glmain.c b/progs/perf/glmain.c index 83c7b8a79c..8b41b8ee82 100644 --- a/progs/perf/glmain.c +++ b/progs/perf/glmain.c @@ -33,7 +33,6 @@ static int Win; static GLfloat Xrot = 0, Yrot = 0, Zrot = 0; -static GLboolean Anim = GL_FALSE; /** Return time in seconds */ @@ -153,13 +152,23 @@ PerfShaderProgram(const char *vertShader, const char *fragShader) } +int +PerfReshapeWindow( unsigned w, unsigned h ) +{ + if (glutGet(GLUT_SCREEN_WIDTH) < w || + glutGet(GLUT_SCREEN_HEIGHT) < h) + return 0; + + glutReshapeWindow( w, h ); + glutPostRedisplay(); + return 1; +} + + static void Idle(void) { - Xrot += 3.0; - Yrot += 4.0; - Zrot += 2.0; - glutPostRedisplay(); + PerfNextRound(); } @@ -193,13 +202,6 @@ Key(unsigned char key, int x, int y) (void) x; (void) y; switch (key) { - case 'a': - Anim = !Anim; - if (Anim) - glutIdleFunc(Idle); - else - glutIdleFunc(NULL); - break; case 'z': Zrot -= step; break; @@ -251,8 +253,7 @@ main(int argc, char *argv[]) glutKeyboardFunc(Key); glutSpecialFunc(SpecialKey); glutDisplayFunc(Draw); - if (Anim) - glutIdleFunc(Idle); + glutIdleFunc(Idle); PerfInit(); glutMainLoop(); return 0; diff --git a/progs/perf/glmain.h b/progs/perf/glmain.h index 91f2eb3e74..ccfd289880 100644 --- a/progs/perf/glmain.h +++ b/progs/perf/glmain.h @@ -46,12 +46,18 @@ PerfCheckerTexture(GLsizei width, GLsizei height); extern GLuint PerfShaderProgram(const char *vertShader, const char *fragShader); +extern int +PerfReshapeWindow( unsigned w, unsigned h ); + /** Test programs must implement these functions **/ extern void PerfInit(void); +extern void +PerfNextRound(void); + extern void PerfDraw(void); diff --git a/progs/perf/swapbuffers.c b/progs/perf/swapbuffers.c new file mode 100644 index 0000000000..79ac372f27 --- /dev/null +++ b/progs/perf/swapbuffers.c @@ -0,0 +1,167 @@ +/* + * 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 drawing overhead + * + * This is the first in a series of simple performance benchmarks. + * The code in this file should be as simple as possible to make it + * easily portable to other APIs. + * + * All the window-system stuff should be contained in glmain.c (or TBDmain.c). + * All the re-usable, generic code should be in common.c (XXX not done yet). + * + * Brian Paul + * 15 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])) { + perf_printf("Reshape %dx%d\n", sizes[i].w, sizes[i].h); + PerfReshapeWindow( 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 (Bare) %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(" Swapbuffers + 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(" Swapbuffers + Clear + DrawPoint %dx%d: %s swaps/second", + real_WinWidth, real_WinHeight, + PerfHumanFloat(rate0)); + perf_printf(" %s pixels/second\n", + PerfHumanFloat(rate0 * real_WinWidth * real_WinHeight)); +} + diff --git a/progs/perf/teximage.c b/progs/perf/teximage.c index 634cd83558..86f0ef8736 100644 --- a/progs/perf/teximage.c +++ b/progs/perf/teximage.c @@ -155,6 +155,10 @@ static const struct { { 0, 0, NULL } }; +void +PerfNextRound(void) +{ +} /** Called from test harness/main */ diff --git a/progs/perf/vbo.c b/progs/perf/vbo.c index 4b6e3f1874..03c896321b 100644 --- a/progs/perf/vbo.c +++ b/progs/perf/vbo.c @@ -142,6 +142,10 @@ static const GLsizei Sizes[] = { 0 /* end of list */ }; +void +PerfNextRound(void) +{ +} /** Called from test harness/main */ void diff --git a/progs/perf/vertexrate.c b/progs/perf/vertexrate.c index 21231d8208..b5355525d0 100644 --- a/progs/perf/vertexrate.c +++ b/progs/perf/vertexrate.c @@ -228,6 +228,11 @@ DrawRangeElementsBO(unsigned count) PerfSwapBuffers(); } +void +PerfNextRound(void) +{ +} + /** Called from test harness/main */ void -- cgit v1.2.3