summaryrefslogtreecommitdiff
path: root/progs/perf
diff options
context:
space:
mode:
Diffstat (limited to 'progs/perf')
-rw-r--r--progs/perf/.gitignore10
-rw-r--r--progs/perf/Makefile55
-rw-r--r--progs/perf/SConscript32
-rw-r--r--progs/perf/common.c137
-rw-r--r--progs/perf/common.h44
-rw-r--r--progs/perf/copytex.c214
-rw-r--r--progs/perf/drawoverhead.c137
-rw-r--r--progs/perf/fbobind.c153
-rw-r--r--progs/perf/fill.c248
-rw-r--r--progs/perf/genmipmap.c136
-rw-r--r--progs/perf/glmain.c268
-rw-r--r--progs/perf/glmain.h68
-rw-r--r--progs/perf/readpixels.c169
-rw-r--r--progs/perf/swapbuffers.c161
-rw-r--r--progs/perf/teximage.c331
-rw-r--r--progs/perf/vbo.c246
-rw-r--r--progs/perf/vertexrate.c276
17 files changed, 2685 insertions, 0 deletions
diff --git a/progs/perf/.gitignore b/progs/perf/.gitignore
new file mode 100644
index 0000000000..7e8fe616cd
--- /dev/null
+++ b/progs/perf/.gitignore
@@ -0,0 +1,10 @@
+copytex
+drawoverhead
+fbobind
+fill
+genmipmap
+readpixels
+swapbuffers
+teximage
+vbo
+vertexrate
diff --git a/progs/perf/Makefile b/progs/perf/Makefile
new file mode 100644
index 0000000000..f7b965542e
--- /dev/null
+++ b/progs/perf/Makefile
@@ -0,0 +1,55 @@
+# progs/demos/Makefile
+
+TOP = ../..
+include $(TOP)/configs/current
+
+INCDIR = $(TOP)/include
+
+LIBS = -L$(TOP)/$(LIB_DIR) -l$(GLUT_LIB) -l$(GLEW_LIB) \
+ -l$(GLU_LIB) -l$(GL_LIB) $(APP_LIB_DEPS)
+
+# using : to avoid APP_CC pointing to CC loop
+CC := $(APP_CC)
+CFLAGS := -I$(INCDIR) $(CFLAGS)
+LDLIBS = $(LIBS)
+
+PROG_SOURCES = \
+ copytex.c \
+ drawoverhead.c \
+ fbobind.c \
+ fill.c \
+ genmipmap.c \
+ readpixels.c \
+ swapbuffers.c \
+ teximage.c \
+ vbo.c \
+ vertexrate.c \
+
+PROG_OBJS = $(PROG_SOURCES:.c=.o)
+
+PROGS = $(PROG_SOURCES:%.c=%)
+
+
+UTIL_SOURCES = \
+ common.c \
+ glmain.c
+
+UTIL_HEADERS = \
+ common.h \
+ glmain.h
+
+UTIL_OBJS = $(UTIL_SOURCES:.c=.o)
+
+
+
+default: $(PROGS)
+
+$(PROG_OBJS): $(UTIL_HEADERS)
+
+$(PROGS): $(UTIL_OBJS)
+
+
+
+clean:
+ -rm -f $(PROGS)
+ -rm -f *.o *~
diff --git a/progs/perf/SConscript b/progs/perf/SConscript
new file mode 100644
index 0000000000..a5ec9a7c2a
--- /dev/null
+++ b/progs/perf/SConscript
@@ -0,0 +1,32 @@
+Import('env')
+
+if not env['GLUT']:
+ Return()
+
+env = env.Clone()
+
+env.Prepend(LIBS = ['$GLUT_LIB'])
+
+progs = [
+ 'copytex',
+ 'drawoverhead',
+ 'fbobind',
+ 'fill',
+ 'genmipmap',
+ 'readpixels',
+ 'swapbuffers',
+ 'teximage',
+ 'vbo',
+ 'vertexrate',
+]
+
+for prog in progs:
+ env.Program(
+ target = prog,
+ source = [
+ prog + '.c',
+ 'common.c',
+ 'glmain.c',
+ ]
+ )
+
diff --git a/progs/perf/common.c b/progs/perf/common.c
new file mode 100644
index 0000000000..b6489ef918
--- /dev/null
+++ b/progs/perf/common.c
@@ -0,0 +1,137 @@
+/*
+ * 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.
+ */
+
+/**
+ * Common perf code. This should be re-usable with other APIs.
+ */
+
+#include "common.h"
+#include "glmain.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#if defined(_MSC_VER)
+#define snprintf _snprintf
+#endif
+
+
+/* Need to add a fflush windows console with mingw, otherwise nothing
+ * shows up until program exit. May want to add logging here.
+ */
+void
+perf_printf(const char *format, ...)
+{
+ va_list ap;
+ va_start(ap, format);
+
+ fflush(stdout);
+ vfprintf(stdout, format, ap);
+ fflush(stdout);
+
+ va_end(ap);
+}
+
+
+
+/**
+ * Run function 'f' for enough iterations to reach a steady state.
+ * Return the rate (iterations/second).
+ */
+double
+PerfMeasureRate(PerfRateFunc f)
+{
+ const double minDuration = 1.0;
+ double rate = 0.0, prevRate = 0.0;
+ unsigned subiters;
+
+ /* Compute initial number of iterations to try.
+ * If the test function is pretty slow this helps to avoid
+ * extraordarily long run times.
+ */
+ subiters = 2;
+ {
+ const double t0 = PerfGetTime();
+ double t1;
+ do {
+ f(subiters); /* call the rendering function */
+ t1 = PerfGetTime();
+ subiters *= 2;
+ } while (t1 - t0 < 0.1 * minDuration);
+ }
+ /*perf_printf("initial subIters = %u\n", subiters);*/
+
+ while (1) {
+ const double t0 = PerfGetTime();
+ unsigned iters = 0;
+ double t1;
+
+ do {
+ f(subiters); /* call the rendering function */
+ t1 = PerfGetTime();
+ iters += subiters;
+ } while (t1 - t0 < minDuration);
+
+ rate = iters / (t1 - t0);
+
+ if (0)
+ perf_printf("prevRate %f rate %f ratio %f iters %u\n",
+ prevRate, rate, rate/prevRate, iters);
+
+ /* Try and speed the search up by skipping a few steps:
+ */
+ if (rate > prevRate * 1.6)
+ subiters *= 8;
+ else if (rate > prevRate * 1.2)
+ subiters *= 4;
+ else if (rate > prevRate * 1.05)
+ subiters *= 2;
+ else
+ break;
+
+ prevRate = rate;
+ }
+
+ if (0)
+ perf_printf("%s returning iters %u rate %f\n", __FUNCTION__, subiters, rate);
+ return rate;
+}
+
+
+/* Note static buffer, can only use once per printf.
+ */
+const char *
+PerfHumanFloat( double d )
+{
+ static char buf[80];
+
+ if (d > 1000000000.0)
+ snprintf(buf, sizeof(buf), "%.1f billion", d / 1000000000.0);
+ else if (d > 1000000.0)
+ snprintf(buf, sizeof(buf), "%.1f million", d / 1000000.0);
+ else if (d > 1000.0)
+ snprintf(buf, sizeof(buf), "%.1f thousand", d / 1000.0);
+ else
+ snprintf(buf, sizeof(buf), "%.1f", d);
+
+ return buf;
+}
diff --git a/progs/perf/common.h b/progs/perf/common.h
new file mode 100644
index 0000000000..6ea17402b5
--- /dev/null
+++ b/progs/perf/common.h
@@ -0,0 +1,44 @@
+/*
+ * 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.
+ */
+
+
+#ifndef COMMON_H
+#define COMMON_H
+
+
+#include <stddef.h> /* for offsetof() */
+
+
+typedef void (*PerfRateFunc)(unsigned count);
+
+
+extern double
+PerfMeasureRate(PerfRateFunc f);
+
+const char *
+PerfHumanFloat( double d );
+
+extern void
+perf_printf(const char *format, ...);
+
+
+#endif /* COMMON_H */
+
diff --git a/progs/perf/copytex.c b/progs/perf/copytex.c
new file mode 100644
index 0000000000..f7a6b8aec3
--- /dev/null
+++ b/progs/perf/copytex.c
@@ -0,0 +1,214 @@
+/*
+ * 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 glCopyTex[Sub]Image() rate.
+ * Create a large, off-screen framebuffer object for rendering and
+ * copying the texture data from it since we can't make really large
+ * on-screen windows.
+ *
+ * Brian Paul
+ * 22 Sep 2009
+ */
+
+#include <string.h>
+#include "glmain.h"
+#include "common.h"
+
+int WinWidth = 100, WinHeight = 100;
+
+static GLuint VBO, FBO, RBO, Tex;
+
+const GLsizei MinSize = 16, MaxSize = 4096;
+static GLsizei TexSize;
+
+static const GLboolean DrawPoint = GL_TRUE;
+static const GLboolean TexSubImage4 = GL_FALSE;
+
+struct vertex
+{
+ GLfloat x, y, s, t;
+};
+
+static const struct vertex vertices[1] = {
+ { 0.0, 0.0, 0.5, 0.5 },
+};
+
+#define VOFFSET(F) ((void *) offsetof(struct vertex, F))
+
+
+/** Called from test harness/main */
+void
+PerfInit(void)
+{
+ const GLenum filter = GL_LINEAR;
+ GLenum stat;
+
+ if (!PerfExtensionSupported("GL_EXT_framebuffer_object")) {
+ perf_printf("copytex: GL_EXT_framebuffer_object not supported\n");
+ exit(0);
+ }
+
+ /* setup VBO */
+ 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), VOFFSET(x));
+ glTexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), VOFFSET(s));
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ /* setup texture */
+ glGenTextures(1, &Tex);
+ glBindTexture(GL_TEXTURE_2D, Tex);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
+ glEnable(GL_TEXTURE_2D);
+
+ /* setup rbo */
+ glGenRenderbuffersEXT(1, &RBO);
+ glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, RBO);
+ glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA, MaxSize, MaxSize);
+
+ /* setup fbo */
+ glGenFramebuffersEXT(1, &FBO);
+ glBindFramebufferEXT(GL_FRAMEBUFFER, FBO);
+ glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT,
+ GL_RENDERBUFFER_EXT, RBO);
+
+ stat = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+ if (stat != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ perf_printf("fboswitch: Error: incomplete FBO!\n");
+ exit(1);
+ }
+
+ /* clear the FBO */
+ glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
+ glViewport(0, 0, MaxSize, MaxSize);
+ glClear(GL_COLOR_BUFFER_BIT);
+}
+
+
+static void
+CopyTexImage(unsigned count)
+{
+ unsigned i;
+ for (i = 1; i < count; i++) {
+ /* draw something */
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+
+ /* copy whole texture */
+ glCopyTexImage2D(GL_TEXTURE_2D, 0,
+ GL_RGBA, 0, 0, TexSize, TexSize, 0);
+ }
+ glFinish();
+}
+
+
+static void
+CopyTexSubImage(unsigned count)
+{
+ unsigned i;
+ for (i = 1; i < count; i++) {
+ /* draw something */
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+
+ /* copy sub texture */
+ if (TexSubImage4) {
+ /* four sub-copies */
+ GLsizei half = TexSize / 2;
+ /* lower-left */
+ glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, 0, 0, 0, half, half);
+ /* lower-right */
+ glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
+ half, 0, half, 0, half, half);
+ /* upper-left */
+ glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, half, 0, half, half, half);
+ /* upper-right */
+ glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
+ half, half, half, half, half, half);
+ }
+ else {
+ /* one big copy */
+ glCopyTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, 0, 0, 0, TexSize, TexSize);
+ }
+ }
+ glFinish();
+}
+
+
+/** Called from test harness/main */
+void
+PerfNextRound(void)
+{
+}
+
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ double rate, mbPerSec;
+ GLint sub, maxTexSize;
+
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTexSize);
+
+ /* loop over whole/sub tex copy */
+ for (sub = 0; sub < 2; sub++) {
+
+ /* loop over texture sizes */
+ for (TexSize = MinSize; TexSize <= MaxSize; TexSize *= 4) {
+
+ if (TexSize <= maxTexSize) {
+ GLint bytesPerImage = 4 * TexSize * TexSize;
+
+ if (sub == 0)
+ rate = PerfMeasureRate(CopyTexImage);
+ else {
+ /* setup empty dest texture */
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
+ TexSize, TexSize, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ rate = PerfMeasureRate(CopyTexSubImage);
+ }
+
+ mbPerSec = rate * bytesPerImage / (1024.0 * 1024.0);
+ }
+ else {
+ rate = 0.0;
+ mbPerSec = 0.0;
+ }
+
+ perf_printf(" glCopyTex%sImage(%d x %d): %.1f copies/sec, %.1f Mpixels/sec\n",
+ (sub ? "Sub" : ""), TexSize, TexSize, rate, mbPerSec);
+ }
+ }
+
+ exit(0);
+}
diff --git a/progs/perf/drawoverhead.c b/progs/perf/drawoverhead.c
new file mode 100644
index 0000000000..f75c9bb74e
--- /dev/null
+++ b/progs/perf/drawoverhead.c
@@ -0,0 +1,137 @@
+/*
+ * 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).
+ *
+ * Brian Paul
+ * 15 Sep 2009
+ */
+
+#include "glmain.h"
+#include "common.h"
+
+
+int WinWidth = 100, WinHeight = 100;
+
+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
+DrawNoStateChange(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ glDrawArrays(GL_POINTS, 0, 4);
+ }
+ glFinish();
+}
+
+
+static void
+DrawNopStateChange(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ glDisable(GL_ALPHA_TEST);
+ glDrawArrays(GL_POINTS, 0, 4);
+ }
+ glFinish();
+}
+
+
+static void
+DrawStateChange(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ if (i & 1)
+ glEnable(GL_TEXTURE_GEN_S);
+ else
+ glDisable(GL_TEXTURE_GEN_S);
+ glDrawArrays(GL_POINTS, 0, 4);
+ }
+ glFinish();
+}
+
+void
+PerfNextRound(void)
+{
+}
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ double rate0, rate1, rate2, overhead;
+
+ rate0 = PerfMeasureRate(DrawNoStateChange);
+ perf_printf(" Draw only: %s draws/second\n",
+ PerfHumanFloat(rate0));
+
+ rate1 = PerfMeasureRate(DrawNopStateChange);
+ overhead = 1000.0 * (1.0 / rate1 - 1.0 / rate0);
+ perf_printf(" Draw w/ nop state change: %s draws/sec (overhead: %f ms/draw)\n",
+ PerfHumanFloat(rate1), overhead);
+
+ rate2 = PerfMeasureRate(DrawStateChange);
+ overhead = 1000.0 * (1.0 / rate2 - 1.0 / rate0);
+ perf_printf(" Draw w/ state change: %s draws/sec (overhead: %f ms/draw)\n",
+ PerfHumanFloat(rate2), overhead);
+
+ exit(0);
+}
+
diff --git a/progs/perf/fbobind.c b/progs/perf/fbobind.c
new file mode 100644
index 0000000000..fb52a93a2f
--- /dev/null
+++ b/progs/perf/fbobind.c
@@ -0,0 +1,153 @@
+/*
+ * 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 rate of binding/switching between FBO targets.
+ * Create two framebuffer objects for rendering to two textures.
+ * Ping pong between texturing from one and drawing into the other.
+ *
+ * Brian Paul
+ * 22 Sep 2009
+ */
+
+#include <string.h>
+#include "glmain.h"
+#include "common.h"
+
+int WinWidth = 100, WinHeight = 100;
+
+static GLuint VBO;
+
+static GLuint FBO[2], Tex[2];
+
+static const GLsizei TexSize = 512;
+
+static const GLboolean DrawPoint = GL_TRUE;
+
+struct vertex
+{
+ GLfloat x, y, s, t;
+};
+
+static const struct vertex vertices[1] = {
+ { 0.0, 0.0, 0.5, 0.5 },
+};
+
+#define VOFFSET(F) ((void *) offsetof(struct vertex, F))
+
+
+/** Called from test harness/main */
+void
+PerfInit(void)
+{
+ const GLenum filter = GL_LINEAR;
+ GLenum stat;
+ int i;
+
+ if (!PerfExtensionSupported("GL_EXT_framebuffer_object")) {
+ perf_printf("fboswitch: GL_EXT_framebuffer_object not supported\n");
+ exit(0);
+ }
+
+ /* setup VBO */
+ 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), VOFFSET(x));
+ glTexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), VOFFSET(s));
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ glGenFramebuffersEXT(2, FBO);
+ glGenTextures(2, Tex);
+
+ for (i = 0; i < 2; i++) {
+ /* setup texture */
+ glBindTexture(GL_TEXTURE_2D, Tex[i]);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
+ TexSize, TexSize, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
+
+
+ /* setup fbo */
+ glBindFramebufferEXT(GL_FRAMEBUFFER, FBO[i]);
+ glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT,
+ GL_TEXTURE_2D, Tex[i], 0/*level*/);
+ stat = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+ if (stat != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ perf_printf("fboswitch: Error: incomplete FBO!\n");
+ exit(1);
+ }
+
+ /* clear the FBO */
+ glClear(GL_COLOR_BUFFER_BIT);
+ }
+
+ glEnable(GL_TEXTURE_2D);
+}
+
+
+static void
+FBOBind(unsigned count)
+{
+ unsigned i;
+ for (i = 1; i < count; i++) {
+ const GLuint dst = i & 1;
+ const GLuint src = 1 - dst;
+
+ /* bind src texture */
+ glBindTexture(GL_TEXTURE_2D, Tex[src]);
+
+ /* bind dst fbo */
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, FBO[dst]);
+ glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
+
+ /* draw something */
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+ }
+ glFinish();
+}
+
+
+/** Called from test harness/main */
+void
+PerfNextRound(void)
+{
+}
+
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ double rate;
+
+ rate = PerfMeasureRate(FBOBind);
+ perf_printf(" FBO Binding: %1.f binds/sec\n", rate);
+
+ exit(0);
+}
diff --git a/progs/perf/fill.c b/progs/perf/fill.c
new file mode 100644
index 0000000000..279f2b5f18
--- /dev/null
+++ b/progs/perf/fill.c
@@ -0,0 +1,248 @@
+/*
+ * 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 fill rates.
+ *
+ * Brian Paul
+ * 21 Sep 2009
+ */
+
+#include "glmain.h"
+#include "common.h"
+
+
+int WinWidth = 1000, WinHeight = 1000;
+
+static GLuint VBO, TexObj;
+
+
+struct vertex
+{
+ GLfloat x, y, s, t, r, g, b, a;
+};
+
+#define VOFFSET(F) ((void *) offsetof(struct vertex, F))
+
+static const struct vertex vertices[4] = {
+ /* x y s t r g b a */
+ { -1.0, -1.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.5 },
+ { 1.0, -1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.5 },
+ { 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.5 },
+ { -1.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0, 0.5 }
+};
+
+
+static const char *VertexShader =
+ "void main() \n"
+ "{ \n"
+ " gl_Position = ftransform(); \n"
+ " gl_TexCoord[0] = gl_MultiTexCoord0; \n"
+ " gl_FrontColor = gl_Color; \n"
+ "} \n";
+
+/* simple fragment shader */
+static const char *FragmentShader1 =
+ "uniform sampler2D Tex; \n"
+ "void main() \n"
+ "{ \n"
+ " vec4 t = texture2D(Tex, gl_TexCoord[0].xy); \n"
+ " gl_FragColor = vec4(1.0) - t * gl_Color; \n"
+ "} \n";
+
+/**
+ * A more complex fragment shader (but equivalent to first shader).
+ * A good optimizer should catch some of these no-op operations, but
+ * probably not all of them.
+ */
+static const char *FragmentShader2 =
+ "uniform sampler2D Tex; \n"
+ "void main() \n"
+ "{ \n"
+ " // as above \n"
+ " vec4 t = texture2D(Tex, gl_TexCoord[0].xy); \n"
+ " t = vec4(1.0) - t * gl_Color; \n"
+
+ " vec4 u; \n"
+
+ " // no-op negate/swizzle \n"
+ " u = -t.wzyx; \n"
+ " t = -u.wzyx; \n"
+
+ " // no-op inverts \n"
+ " t = vec4(1.0) - t; \n"
+ " t = vec4(1.0) - t; \n"
+
+ " // no-op min/max \n"
+ " t = min(t, t); \n"
+ " t = max(t, t); \n"
+
+ " // no-op moves \n"
+ " u = t; \n"
+ " t = u; \n"
+ " u = t; \n"
+ " t = u; \n"
+
+ " // no-op add/mul \n"
+ " t = (t + t + t + t) * 0.25; \n"
+
+ " // no-op mul/sub \n"
+ " t = 3.0 * t - 2.0 * t; \n"
+
+ " // no-op negate/min/max \n"
+ " t = -min(-t, -t); \n"
+ " t = -max(-t, -t); \n"
+
+ " gl_FragColor = t; \n"
+ "} \n";
+
+static GLuint ShaderProg1, ShaderProg2;
+
+
+
+/** Called from test harness/main */
+void
+PerfInit(void)
+{
+ GLint u;
+
+ /* 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), VOFFSET(x));
+ glTexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), VOFFSET(s));
+ glColorPointer(4, GL_FLOAT, sizeof(struct vertex), VOFFSET(r));
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+
+ /* setup texture */
+ TexObj = PerfCheckerTexture(128, 128);
+
+ /* setup shaders */
+ ShaderProg1 = PerfShaderProgram(VertexShader, FragmentShader1);
+ glUseProgram(ShaderProg1);
+ u = glGetUniformLocation(ShaderProg1, "Tex");
+ glUniform1i(u, 0); /* texture unit 0 */
+
+ ShaderProg2 = PerfShaderProgram(VertexShader, FragmentShader2);
+ glUseProgram(ShaderProg2);
+ u = glGetUniformLocation(ShaderProg2, "Tex");
+ glUniform1i(u, 0); /* texture unit 0 */
+
+ glUseProgram(0);
+}
+
+
+static void
+Ortho(void)
+{
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+}
+
+
+
+static void
+DrawQuad(unsigned count)
+{
+ unsigned i;
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ for (i = 0; i < count; i++) {
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+ /* Avoid sending command buffers with huge numbers of fullscreen
+ * quads. Graphics schedulers don't always cope well with
+ * this...
+ */
+ if (i % 128 == 0) {
+ PerfSwapBuffers();
+ glClear(GL_COLOR_BUFFER_BIT);
+ }
+ }
+
+ glFinish();
+
+ if (1)
+ PerfSwapBuffers();
+}
+
+void
+PerfNextRound(void)
+{
+}
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ double rate;
+ double pixelsPerDraw = WinWidth * WinHeight;
+
+ Ortho();
+
+ /* simple fill */
+ rate = PerfMeasureRate(DrawQuad) * pixelsPerDraw;
+ perf_printf(" Simple fill: %s pixels/second\n",
+ PerfHumanFloat(rate));
+
+ /* blended fill */
+ glEnable(GL_BLEND);
+ rate = PerfMeasureRate(DrawQuad) * pixelsPerDraw;
+ glDisable(GL_BLEND);
+ perf_printf(" Blended fill: %s pixels/second\n",
+ PerfHumanFloat(rate));
+
+ /* textured fill */
+ glEnable(GL_TEXTURE_2D);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ rate = PerfMeasureRate(DrawQuad) * pixelsPerDraw;
+ glDisable(GL_TEXTURE_2D);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ perf_printf(" Textured fill: %s pixels/second\n",
+ PerfHumanFloat(rate));
+
+ /* shader1 fill */
+ glUseProgram(ShaderProg1);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ rate = PerfMeasureRate(DrawQuad) * pixelsPerDraw;
+ glUseProgram(0);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ perf_printf(" Shader1 fill: %s pixels/second\n",
+ PerfHumanFloat(rate));
+
+ /* shader2 fill */
+ glUseProgram(ShaderProg2);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ rate = PerfMeasureRate(DrawQuad) * pixelsPerDraw;
+ glUseProgram(0);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ perf_printf(" Shader2 fill: %s pixels/second\n",
+ PerfHumanFloat(rate));
+
+ exit(0);
+}
+
diff --git a/progs/perf/genmipmap.c b/progs/perf/genmipmap.c
new file mode 100644
index 0000000000..4b7d6ad155
--- /dev/null
+++ b/progs/perf/genmipmap.c
@@ -0,0 +1,136 @@
+/*
+ * 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 glGenerateMipmap() speed.
+ *
+ * Brian Paul
+ * 24 Sep 2009
+ */
+
+#include <string.h>
+#include "glmain.h"
+#include "common.h"
+
+
+int WinWidth = 100, WinHeight = 100;
+
+static GLboolean DrawPoint = GL_TRUE;
+static GLuint VBO;
+static GLuint TexObj = 0;
+static GLint BaseLevel, MaxLevel;
+
+struct vertex
+{
+ GLfloat x, y, s, t;
+};
+
+static const struct vertex vertices[1] = {
+ { 0.0, 0.0, 0.5, 0.5 },
+};
+
+#define VOFFSET(F) ((void *) offsetof(struct vertex, F))
+
+/** 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), VOFFSET(x));
+ glTexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), VOFFSET(s));
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ glGenTextures(1, &TexObj);
+ glBindTexture(GL_TEXTURE_2D, TexObj);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glEnable(GL_TEXTURE_2D);
+}
+
+
+static void
+GenMipmap(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ GLubyte texel[4];
+ texel[0] = texel[1] = texel[2] = texel[3] = i & 0xff;
+ /* dirty the base image */
+ glTexSubImage2D(GL_TEXTURE_2D, BaseLevel,
+ 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, texel);
+ glGenerateMipmap(GL_TEXTURE_2D);
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+ }
+ glFinish();
+}
+
+
+/** Called from test harness/main */
+void
+PerfNextRound(void)
+{
+}
+
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ const GLint NumLevels = 12;
+ const GLint TexWidth = 2048, TexHeight = 2048;
+ GLubyte *img;
+ double rate;
+
+ /* Make 2K x 2K texture */
+ img = (GLubyte *) malloc(TexWidth * TexHeight * 4);
+ memset(img, 128, TexWidth * TexHeight * 4);
+ glTexImage2D(GL_TEXTURE_2D, 0,
+ GL_RGBA, TexWidth, TexHeight, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, img);
+ free(img);
+
+ perf_printf("Texture level[0] size: %d x %d, %d levels\n",
+ TexWidth, TexHeight, NumLevels);
+
+ /* loop over base levels 0, 2, 4 */
+ for (BaseLevel = 0; BaseLevel <= 4; BaseLevel += 2) {
+
+ /* loop over max level */
+ for (MaxLevel = NumLevels; MaxLevel > BaseLevel; MaxLevel--) {
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, BaseLevel);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, MaxLevel);
+
+ rate = PerfMeasureRate(GenMipmap);
+
+ perf_printf(" glGenerateMipmap(levels %d..%d): %.2f gens/sec\n",
+ BaseLevel + 1, MaxLevel, rate);
+ }
+ }
+
+ exit(0);
+}
diff --git a/progs/perf/glmain.c b/progs/perf/glmain.c
new file mode 100644
index 0000000000..69cdbce319
--- /dev/null
+++ b/progs/perf/glmain.c
@@ -0,0 +1,268 @@
+/*
+ * 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.
+ */
+
+/**
+ * OpenGL/GLUT common code for perf programs.
+ * Brian Paul
+ * 15 Sep 2009
+ */
+
+
+#include <stdio.h>
+#include "glmain.h"
+#include <GL/glut.h>
+
+
+static int Win;
+static GLfloat Xrot = 0, Yrot = 0, Zrot = 0;
+
+
+/** Return time in seconds */
+double
+PerfGetTime(void)
+{
+ return glutGet(GLUT_ELAPSED_TIME) * 0.001;
+}
+
+
+void
+PerfSwapBuffers(void)
+{
+ glutSwapBuffers();
+}
+
+
+/** make simple checkerboard texture object */
+GLuint
+PerfCheckerTexture(GLsizei width, GLsizei height)
+{
+ const GLenum filter = GL_NEAREST;
+ GLubyte *img = (GLubyte *) malloc(width * height * 4);
+ GLint i, j, k;
+ GLuint obj;
+
+ k = 0;
+ for (i = 0; i < height; i++) {
+ for (j = 0; j < width; j++) {
+ GLubyte color;
+ if (((i / 8) ^ (j / 8)) & 1) {
+ color = 0xff;
+ }
+ else {
+ color = 0x0;
+ }
+ img[k++] = color;
+ img[k++] = color;
+ img[k++] = color;
+ img[k++] = color;
+ }
+ }
+
+ glGenTextures(1, &obj);
+ glBindTexture(GL_TEXTURE_2D, obj);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, img);
+ free(img);
+
+ return obj;
+}
+
+
+static GLuint
+CompileShader(GLenum type, const char *shader)
+{
+ GLuint sh;
+ GLint stat;
+
+ sh = glCreateShader(type);
+ glShaderSource(sh, 1, (const GLchar **) &shader, NULL);
+
+ glCompileShader(sh);
+
+ glGetShaderiv(sh, GL_COMPILE_STATUS, &stat);
+ if (!stat) {
+ GLchar log[1000];
+ GLsizei len;
+ glGetShaderInfoLog(sh, 1000, &len, log);
+ fprintf(stderr, "Error: problem compiling shader: %s\n", log);
+ exit(1);
+ }
+
+ return sh;
+}
+
+
+/** Make shader program from given vert/frag shader text */
+GLuint
+PerfShaderProgram(const char *vertShader, const char *fragShader)
+{
+ GLuint prog;
+ GLint stat;
+
+ {
+ const char *version = (const char *) glGetString(GL_VERSION);
+ if ((version[0] != '2' &&
+ version[0] != '3') || version[1] != '.') {
+ fprintf(stderr, "Error: GL version 2.x or better required\n");
+ exit(1);
+ }
+ }
+
+ prog = glCreateProgram();
+
+ if (vertShader) {
+ GLuint vs = CompileShader(GL_VERTEX_SHADER, vertShader);
+ glAttachShader(prog, vs);
+ }
+ if (fragShader) {
+ GLuint fs = CompileShader(GL_FRAGMENT_SHADER, fragShader);
+ glAttachShader(prog, fs);
+ }
+
+ glLinkProgram(prog);
+ glGetProgramiv(prog, GL_LINK_STATUS, &stat);
+ if (!stat) {
+ GLchar log[1000];
+ GLsizei len;
+ glGetProgramInfoLog(prog, 1000, &len, log);
+ fprintf(stderr, "Shader link error:\n%s\n", log);
+ exit(1);
+ }
+
+ return prog;
+}
+
+
+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;
+}
+
+
+GLboolean
+PerfExtensionSupported(const char *ext)
+{
+ return glutExtensionSupported(ext);
+}
+
+
+static void
+Idle(void)
+{
+ PerfNextRound();
+}
+
+
+static void
+Draw(void)
+{
+ PerfDraw();
+ glutSwapBuffers();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ WinWidth = width;
+ WinHeight = height;
+ glViewport(0, 0, width, height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ const GLfloat step = 3.0;
+ (void) x;
+ (void) y;
+ switch (key) {
+ case 'z':
+ Zrot -= step;
+ break;
+ case 'Z':
+ Zrot += step;
+ break;
+ case 27:
+ glutDestroyWindow(Win);
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+SpecialKey(int key, int x, int y)
+{
+ const GLfloat step = 3.0;
+ (void) x;
+ (void) y;
+ switch (key) {
+ case GLUT_KEY_UP:
+ Xrot -= step;
+ break;
+ case GLUT_KEY_DOWN:
+ Xrot += step;
+ break;
+ case GLUT_KEY_LEFT:
+ Yrot -= step;
+ break;
+ case GLUT_KEY_RIGHT:
+ Yrot += step;
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInit(&argc, argv);
+ glutInitWindowSize(WinWidth, WinHeight);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL);
+ Win = glutCreateWindow(argv[0]);
+ glewInit();
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutSpecialFunc(SpecialKey);
+ glutDisplayFunc(Draw);
+ glutIdleFunc(Idle);
+ PerfInit();
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/perf/glmain.h b/progs/perf/glmain.h
new file mode 100644
index 0000000000..d9bcd5f4e2
--- /dev/null
+++ b/progs/perf/glmain.h
@@ -0,0 +1,68 @@
+/*
+ * 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.
+ */
+
+
+#ifndef GLMAIN_H
+#define GLMAIN_H
+
+
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
+#include <stdlib.h>
+#include <math.h>
+
+
+/** Test programs can use these vars/functions */
+
+extern int WinWidth, WinHeight;
+
+extern double
+PerfGetTime(void);
+
+extern void
+PerfSwapBuffers(void);
+
+extern GLuint
+PerfCheckerTexture(GLsizei width, GLsizei height);
+
+extern GLuint
+PerfShaderProgram(const char *vertShader, const char *fragShader);
+
+extern int
+PerfReshapeWindow( unsigned w, unsigned h );
+
+extern GLboolean
+PerfExtensionSupported(const char *ext);
+
+
+/** Test programs must implement these functions **/
+
+extern void
+PerfInit(void);
+
+extern void
+PerfNextRound(void);
+
+extern void
+PerfDraw(void);
+
+
+#endif /* GLMAIN_H */
diff --git a/progs/perf/readpixels.c b/progs/perf/readpixels.c
new file mode 100644
index 0000000000..ac7dc426e9
--- /dev/null
+++ b/progs/perf/readpixels.c
@@ -0,0 +1,169 @@
+/*
+ * 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);
+}
diff --git a/progs/perf/swapbuffers.c b/progs/perf/swapbuffers.c
new file mode 100644
index 0000000000..63c7fc06f9
--- /dev/null
+++ b/progs/perf/swapbuffers.c
@@ -0,0 +1,161 @@
+/*
+ * 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));
+}
+
diff --git a/progs/perf/teximage.c b/progs/perf/teximage.c
new file mode 100644
index 0000000000..a3005d0bef
--- /dev/null
+++ b/progs/perf/teximage.c
@@ -0,0 +1,331 @@
+/*
+ * 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 glTex[Sub]Image2D() and glGetTexImage() rate
+ *
+ * Brian Paul
+ * 16 Sep 2009
+ */
+
+#include "glmain.h"
+#include "common.h"
+
+
+int WinWidth = 100, WinHeight = 100;
+
+static GLuint VBO;
+static GLuint TexObj = 0;
+static GLubyte *TexImage = NULL;
+static GLsizei TexSize;
+static GLenum TexIntFormat, TexSrcFormat, TexSrcType;
+
+static const GLboolean DrawPoint = GL_TRUE;
+static const GLboolean TexSubImage4 = GL_FALSE;
+
+enum {
+ MODE_CREATE_TEXIMAGE,
+ MODE_TEXIMAGE,
+ MODE_TEXSUBIMAGE,
+ MODE_GETTEXIMAGE,
+ MODE_COUNT
+};
+
+static const char *mode_name[MODE_COUNT] =
+{
+ "Create_TexImage",
+ "TexImage",
+ "TexSubImage",
+ "GetTexImage"
+};
+
+
+
+struct vertex
+{
+ GLfloat x, y, s, t;
+};
+
+static const struct vertex vertices[1] = {
+ { 0.0, 0.0, 0.5, 0.5 },
+};
+
+#define VOFFSET(F) ((void *) offsetof(struct vertex, F))
+
+
+/** 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), VOFFSET(x));
+ glTexCoordPointer(2, GL_FLOAT, sizeof(struct vertex), VOFFSET(s));
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ /* texture */
+ glGenTextures(1, &TexObj);
+ glBindTexture(GL_TEXTURE_2D, TexObj);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glEnable(GL_TEXTURE_2D);
+}
+
+
+
+
+static void
+CreateUploadTexImage2D(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ if (TexObj)
+ glDeleteTextures(1, &TexObj);
+
+ glGenTextures(1, &TexObj);
+ glBindTexture(GL_TEXTURE_2D, TexObj);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+ glTexImage2D(GL_TEXTURE_2D, 0, TexIntFormat,
+ TexSize, TexSize, 0,
+ TexSrcFormat, TexSrcType, TexImage);
+
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+ }
+ glFinish();
+}
+
+
+static void
+UploadTexImage2D(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ /* XXX is this equivalent to a glTexSubImage call since we're
+ * always specifying the same image size? That case isn't optimized
+ * in Mesa but may be optimized in other drivers. Note sure how
+ * much difference that might make.
+ */
+ glTexImage2D(GL_TEXTURE_2D, 0, TexIntFormat,
+ TexSize, TexSize, 0,
+ TexSrcFormat, TexSrcType, TexImage);
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+ }
+ glFinish();
+}
+
+
+static void
+UploadTexSubImage2D(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ if (TexSubImage4) {
+ GLsizei halfSize = (TexSize == 1) ? 1 : TexSize / 2;
+ GLsizei halfPos = TexSize - halfSize;
+ /* do glTexSubImage2D in four pieces */
+ /* lower-left */
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, TexSize);
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, 0, halfSize, halfSize,
+ TexSrcFormat, TexSrcType, TexImage);
+ /* lower-right */
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, halfPos);
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ halfPos, 0, halfSize, halfSize,
+ TexSrcFormat, TexSrcType, TexImage);
+ /* upper-left */
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, halfPos);
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, halfPos, halfSize, halfSize,
+ TexSrcFormat, TexSrcType, TexImage);
+ /* upper-right */
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, halfPos);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, halfPos);
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ halfPos, halfPos, halfSize, halfSize,
+ TexSrcFormat, TexSrcType, TexImage);
+ /* reset the unpacking state */
+ glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+ }
+ else {
+ /* replace whole texture image at once */
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ 0, 0, TexSize, TexSize,
+ TexSrcFormat, TexSrcType, TexImage);
+ }
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+ }
+ glFinish();
+}
+
+
+static void
+GetTexImage2D(unsigned count)
+{
+ unsigned i;
+ GLubyte *buf = (GLubyte *) malloc(TexSize * TexSize * 4);
+ for (i = 0; i < count; i++) {
+ glGetTexImage(GL_TEXTURE_2D, 0,
+ TexSrcFormat, TexSrcType, buf);
+ }
+ glFinish();
+ free(buf);
+}
+
+
+/* XXX any other formats to measure? */
+static const struct {
+ GLenum format, type;
+ GLenum internal_format;
+ const char *name;
+ GLuint texel_size;
+ GLboolean full_test;
+} SrcFormats[] = {
+ { GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA, "RGBA/ubyte", 4, GL_TRUE },
+ { GL_RGB, GL_UNSIGNED_BYTE, GL_RGB, "RGB/ubyte", 3, GL_FALSE },
+ { GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB, "RGB/565", 2, GL_FALSE },
+ { GL_BGRA, GL_UNSIGNED_BYTE, GL_RGBA, "BGRA/ubyte", 4, GL_FALSE },
+ { GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE, "L/ubyte", 1, GL_FALSE },
+ { 0, 0, 0, NULL, 0, 0 }
+};
+
+
+/** Called from test harness/main */
+void
+PerfNextRound(void)
+{
+}
+
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ GLint maxSize;
+ double rate;
+ GLint fmt, mode;
+
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxSize);
+
+ /* loop over source data formats */
+ for (fmt = 0; SrcFormats[fmt].format; fmt++) {
+ TexIntFormat = SrcFormats[fmt].internal_format;
+ TexSrcFormat = SrcFormats[fmt].format;
+ TexSrcType = SrcFormats[fmt].type;
+
+ /* loop over glTexImage, glTexSubImage */
+ for (mode = 0; mode < MODE_COUNT; mode++) {
+ GLuint minsz, maxsz;
+
+ if (SrcFormats[fmt].full_test) {
+ minsz = 16;
+ maxsz = 4096;
+ }
+ else {
+ minsz = maxsz = 256;
+ if (mode == MODE_CREATE_TEXIMAGE)
+ continue;
+ }
+
+ /* loop over a defined range of texture sizes, test only the
+ * ones which are legal for this driver.
+ */
+ for (TexSize = minsz; TexSize <= maxsz; TexSize *= 4) {
+ double mbPerSec;
+
+ if (TexSize <= maxSize) {
+ GLint bytesPerImage;
+
+ bytesPerImage = TexSize * TexSize * SrcFormats[fmt].texel_size;
+ TexImage = malloc(bytesPerImage);
+
+ switch (mode) {
+ case MODE_TEXIMAGE:
+ rate = PerfMeasureRate(UploadTexImage2D);
+ break;
+
+ case MODE_CREATE_TEXIMAGE:
+ rate = PerfMeasureRate(CreateUploadTexImage2D);
+ break;
+
+ case MODE_TEXSUBIMAGE:
+ /* create initial, empty texture */
+ glTexImage2D(GL_TEXTURE_2D, 0, TexIntFormat,
+ TexSize, TexSize, 0,
+ TexSrcFormat, TexSrcType, NULL);
+ rate = PerfMeasureRate(UploadTexSubImage2D);
+ break;
+
+ case MODE_GETTEXIMAGE:
+ glTexImage2D(GL_TEXTURE_2D, 0, TexIntFormat,
+ TexSize, TexSize, 0,
+ TexSrcFormat, TexSrcType, TexImage);
+ rate = PerfMeasureRate(GetTexImage2D);
+ break;
+
+ default:
+ exit(1);
+ }
+
+ mbPerSec = rate * bytesPerImage / (1024.0 * 1024.0);
+ free(TexImage);
+
+
+ {
+ unsigned err;
+ err = glGetError();
+ if (err) {
+ perf_printf("non-zero glGetError() %d\n", err);
+ exit(1);
+ }
+ }
+
+ }
+ else {
+ rate = 0;
+ mbPerSec = 0;
+ }
+
+ perf_printf(" %s(%s %d x %d): "
+ "%.1f images/sec, %.1f MB/sec\n",
+ mode_name[mode],
+ SrcFormats[fmt].name, TexSize, TexSize, rate, mbPerSec);
+ }
+
+ if (SrcFormats[fmt].full_test)
+ perf_printf("\n");
+ }
+ }
+
+ exit(0);
+}
diff --git a/progs/perf/vbo.c b/progs/perf/vbo.c
new file mode 100644
index 0000000000..b326c056ec
--- /dev/null
+++ b/progs/perf/vbo.c
@@ -0,0 +1,246 @@
+/*
+ * 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 VBO upload speed.
+ * That is, measure glBufferDataARB() and glBufferSubDataARB().
+ *
+ * Brian Paul
+ * 16 Sep 2009
+ */
+
+#include <string.h>
+#include "glmain.h"
+#include "common.h"
+
+/* Copy data out of a large array to avoid caching effects:
+ */
+#define DATA_SIZE (16*1024*1024)
+
+int WinWidth = 100, WinHeight = 100;
+
+static GLuint VBO;
+
+static GLsizei VBOSize = 0;
+static GLsizei SubSize = 0;
+static GLubyte *VBOData = NULL; /* array[DATA_SIZE] */
+
+static const GLboolean DrawPoint = GL_TRUE;
+static const GLboolean BufferSubDataInHalves = GL_TRUE;
+
+static const GLfloat Vertex0[2] = { 0.0, 0.0 };
+
+
+/** Called from test harness/main */
+void
+PerfInit(void)
+{
+ /* setup VBO */
+ glGenBuffersARB(1, &VBO);
+ glBindBufferARB(GL_ARRAY_BUFFER_ARB, VBO);
+ glVertexPointer(2, GL_FLOAT, sizeof(Vertex0), (void *) 0);
+ glEnableClientState(GL_VERTEX_ARRAY);
+}
+
+
+static void
+UploadVBO(unsigned count)
+{
+ unsigned i;
+ unsigned total = 0;
+ unsigned src = 0;
+
+ for (i = 0; i < count; i++) {
+ glBufferDataARB(GL_ARRAY_BUFFER, VBOSize, VBOData + src, GL_STREAM_DRAW_ARB);
+ glDrawArrays(GL_POINTS, 0, 1);
+
+ /* Throw in an occasional flush to work around a driver crash:
+ */
+ total += VBOSize;
+ if (total >= 16*1024*1024) {
+ glFlush();
+ total = 0;
+ }
+
+ src += VBOSize;
+ src %= DATA_SIZE;
+ }
+ glFinish();
+}
+
+
+static void
+UploadSubVBO(unsigned count)
+{
+ unsigned i;
+ unsigned src = 0;
+
+ for (i = 0; i < count; i++) {
+ unsigned offset = (i * SubSize) % VBOSize;
+ glBufferSubDataARB(GL_ARRAY_BUFFER, offset, SubSize, VBOData + src);
+
+ if (DrawPoint) {
+ glDrawArrays(GL_POINTS, offset / sizeof(Vertex0), 1);
+ }
+
+ src += SubSize;
+ src %= DATA_SIZE;
+ }
+ glFinish();
+}
+
+
+/* Do multiple small SubData uploads, then call DrawArrays. This may be a
+ * fairer comparison to back-to-back BufferData calls:
+ */
+static void
+BatchUploadSubVBO(unsigned count)
+{
+ unsigned i = 0, j;
+ unsigned period = VBOSize / SubSize;
+ unsigned src = 0;
+
+ while (i < count) {
+ for (j = 0; j < period && i < count; j++, i++) {
+ unsigned offset = j * SubSize;
+ glBufferSubDataARB(GL_ARRAY_BUFFER, offset, SubSize, VBOData + src);
+ }
+
+ glDrawArrays(GL_POINTS, 0, 1);
+
+ src += SubSize;
+ src %= DATA_SIZE;
+ }
+ glFinish();
+}
+
+
+/**
+ * Test the sequence:
+ * create/load VBO
+ * draw
+ * destroy VBO
+ */
+static void
+CreateDrawDestroyVBO(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ GLuint vbo;
+ /* create/load */
+ glGenBuffersARB(1, &vbo);
+ glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
+ glBufferDataARB(GL_ARRAY_BUFFER, VBOSize, VBOData, GL_STREAM_DRAW_ARB);
+ /* draw */
+ glVertexPointer(2, GL_FLOAT, sizeof(Vertex0), (void *) 0);
+ glDrawArrays(GL_POINTS, 0, 1);
+ /* destroy */
+ glDeleteBuffersARB(1, &vbo);
+ }
+ glFinish();
+}
+
+
+static const GLsizei Sizes[] = {
+ 64,
+ 1024,
+ 16*1024,
+ 256*1024,
+ 1024*1024,
+ 16*1024*1024,
+ 0 /* end of list */
+};
+
+void
+PerfNextRound(void)
+{
+}
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ double rate, mbPerSec;
+ int i, sz;
+
+ /* Load VBOData buffer with duplicated Vertex0.
+ */
+ VBOData = calloc(DATA_SIZE, 1);
+
+ for (i = 0; i < DATA_SIZE / sizeof(Vertex0); i++) {
+ memcpy(VBOData + i * sizeof(Vertex0),
+ Vertex0,
+ sizeof(Vertex0));
+ }
+
+ /* glBufferDataARB()
+ */
+ for (sz = 0; Sizes[sz]; sz++) {
+ SubSize = VBOSize = Sizes[sz];
+ rate = PerfMeasureRate(UploadVBO);
+ mbPerSec = rate * VBOSize / (1024.0 * 1024.0);
+ perf_printf(" glBufferDataARB(size = %d): %.1f MB/sec\n",
+ VBOSize, mbPerSec);
+ }
+
+ /* glBufferSubDataARB()
+ */
+ for (sz = 0; Sizes[sz]; sz++) {
+ SubSize = VBOSize = Sizes[sz];
+ rate = PerfMeasureRate(UploadSubVBO);
+ mbPerSec = rate * VBOSize / (1024.0 * 1024.0);
+ perf_printf(" glBufferSubDataARB(size = %d): %.1f MB/sec\n",
+ VBOSize, mbPerSec);
+ }
+
+ /* Batch upload
+ */
+ VBOSize = 1024 * 1024;
+ glBufferDataARB(GL_ARRAY_BUFFER, VBOSize, VBOData, GL_STREAM_DRAW_ARB);
+
+ for (sz = 0; Sizes[sz] < VBOSize; sz++) {
+ SubSize = Sizes[sz];
+ rate = PerfMeasureRate(UploadSubVBO);
+ mbPerSec = rate * SubSize / (1024.0 * 1024.0);
+ perf_printf(" glBufferSubDataARB(size = %d, VBOSize = %d): %.1f MB/sec\n",
+ SubSize, VBOSize, mbPerSec);
+ }
+
+ for (sz = 0; Sizes[sz] < VBOSize; sz++) {
+ SubSize = Sizes[sz];
+ rate = PerfMeasureRate(BatchUploadSubVBO);
+ mbPerSec = rate * SubSize / (1024.0 * 1024.0);
+ perf_printf(" glBufferSubDataARB(size = %d, VBOSize = %d), batched: %.1f MB/sec\n",
+ SubSize, VBOSize, mbPerSec);
+ }
+
+ /* Create/Draw/Destroy
+ */
+ for (sz = 0; Sizes[sz]; sz++) {
+ SubSize = VBOSize = Sizes[sz];
+ rate = PerfMeasureRate(CreateDrawDestroyVBO);
+ mbPerSec = rate * VBOSize / (1024.0 * 1024.0);
+ perf_printf(" VBO Create/Draw/Destroy(size = %d): %.1f MB/sec, %.1f draws/sec\n",
+ VBOSize, mbPerSec, rate);
+ }
+
+ exit(0);
+}
diff --git a/progs/perf/vertexrate.c b/progs/perf/vertexrate.c
new file mode 100644
index 0000000000..b5355525d0
--- /dev/null
+++ b/progs/perf/vertexrate.c
@@ -0,0 +1,276 @@
+/*
+ * 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 (100 * 100)
+
+/** 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);
+}
generated by cgit v1.2.3 (git 2.51.0) at 2025-10-31 20:10:24 +0000