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-rw-r--r--progs/perf/Makefile49
-rw-r--r--progs/perf/common.c93
-rw-r--r--progs/perf/common.h35
-rw-r--r--progs/perf/drawoverhead.c133
-rw-r--r--progs/perf/glmain.c156
-rw-r--r--progs/perf/glmain.h54
-rw-r--r--progs/perf/teximage.c210
-rw-r--r--progs/perf/vbo.c138
-rw-r--r--progs/perf/vertexrate.c271
9 files changed, 1139 insertions, 0 deletions
diff --git a/progs/perf/Makefile b/progs/perf/Makefile
new file mode 100644
index 0000000000..219667439f
--- /dev/null
+++ b/progs/perf/Makefile
@@ -0,0 +1,49 @@
+# 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)
+LDLIBS = $(LIBS)
+
+PROG_SOURCES = \
+ drawoverhead.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/common.c b/progs/perf/common.c
new file mode 100644
index 0000000000..a50fc11cca
--- /dev/null
+++ b/progs/perf/common.c
@@ -0,0 +1,93 @@
+/*
+ * 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"
+
+
+/**
+ * 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);
+ }
+ /*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)
+ 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)
+ printf("%s returning iters %u rate %f\n", __FUNCTION__, subiters, rate);
+ return rate;
+}
+
+
diff --git a/progs/perf/common.h b/progs/perf/common.h
new file mode 100644
index 0000000000..8b6091530d
--- /dev/null
+++ b/progs/perf/common.h
@@ -0,0 +1,35 @@
+/*
+ * 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
+
+
+typedef void (*PerfRateFunc)(unsigned count);
+
+
+extern double
+PerfMeasureRate(PerfRateFunc f);
+
+
+#endif /* COMMON_H */
+
diff --git a/progs/perf/drawoverhead.c b/progs/perf/drawoverhead.c
new file mode 100644
index 0000000000..8c99804d34
--- /dev/null
+++ b/progs/perf/drawoverhead.c
@@ -0,0 +1,133 @@
+/*
+ * 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;
+
+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();
+}
+
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ double rate0, rate1, rate2, overhead;
+
+ rate0 = PerfMeasureRate(DrawNoStateChange);
+ printf(" Draw only: %.1f draws/second\n", rate0);
+
+ rate1 = PerfMeasureRate(DrawNopStateChange);
+ overhead = 1000.0 * (1.0 / rate1 - 1.0 / rate0);
+ printf(" Draw w/ nop state change: %.1f draws/sec (overhead: %f ms/draw)\n",
+ rate1, overhead);
+
+ rate2 = PerfMeasureRate(DrawStateChange);
+ overhead = 1000.0 * (1.0 / rate2 - 1.0 / rate0);
+ printf(" Draw w/ state change: %.1f draws/sec (overhead: %f ms/draw)\n",
+ rate2, overhead);
+
+ exit(0);
+}
+
diff --git a/progs/perf/glmain.c b/progs/perf/glmain.c
new file mode 100644
index 0000000000..62d14259f8
--- /dev/null
+++ b/progs/perf/glmain.c
@@ -0,0 +1,156 @@
+/*
+ * 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 "glmain.h"
+#include <GL/glut.h>
+
+
+static int Win;
+static GLfloat Xrot = 0, Yrot = 0, Zrot = 0;
+static GLboolean Anim = GL_FALSE;
+
+
+/** Return time in seconds */
+double
+PerfGetTime(void)
+{
+ return glutGet(GLUT_ELAPSED_TIME) * 0.001;
+}
+
+
+void
+PerfSwapBuffers(void)
+{
+ glutSwapBuffers();
+}
+
+
+static void
+Idle(void)
+{
+ Xrot += 3.0;
+ Yrot += 4.0;
+ Zrot += 2.0;
+ glutPostRedisplay();
+}
+
+
+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 'a':
+ Anim = !Anim;
+ if (Anim)
+ glutIdleFunc(Idle);
+ else
+ glutIdleFunc(NULL);
+ break;
+ 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);
+ Win = glutCreateWindow(argv[0]);
+ glewInit();
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutSpecialFunc(SpecialKey);
+ glutDisplayFunc(Draw);
+ if (Anim)
+ glutIdleFunc(Idle);
+ PerfInit();
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/perf/glmain.h b/progs/perf/glmain.h
new file mode 100644
index 0000000000..50480a80c0
--- /dev/null
+++ b/progs/perf/glmain.h
@@ -0,0 +1,54 @@
+/*
+ * 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 <stdio.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);
+
+
+/** Test programs must implement these functions **/
+
+extern void
+PerfInit(void);
+
+extern void
+PerfDraw(void);
+
+
+#endif /* GLMAIN_H */
diff --git a/progs/perf/teximage.c b/progs/perf/teximage.c
new file mode 100644
index 0000000000..b6d4f644de
--- /dev/null
+++ b/progs/perf/teximage.c
@@ -0,0 +1,210 @@
+/*
+ * 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 glTexSubImage2D 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 TexSrcFormat, TexSrcType;
+
+static const GLboolean DrawPoint = GL_TRUE;
+static const GLboolean TexSubImage4 = 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)
+{
+ /* 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
+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, GL_RGBA,
+ 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_PIXELS, 0);
+ glPixelStorei(GL_UNPACK_SKIP_ROWS, 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();
+}
+
+
+/* XXX any other formats to measure? */
+static const struct {
+ GLenum format, type;
+ const char *name;
+} SrcFormats[] = {
+ { GL_RGBA, GL_UNSIGNED_BYTE, "GL_RGBA/GLubyte" },
+ { GL_BGRA, GL_UNSIGNED_BYTE, "GL_BGRA/GLubyte" },
+ { 0, 0, NULL }
+};
+
+
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ GLint maxSize;
+ double rate;
+ GLint fmt, subImage;
+
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxSize);
+
+ /* loop over source data formats */
+ for (fmt = 0; SrcFormats[fmt].format; fmt++) {
+ TexSrcFormat = SrcFormats[fmt].format;
+ TexSrcType = SrcFormats[fmt].type;
+
+ /* loop over glTexImage, glTexSubImage */
+ for (subImage = 0; subImage < 2; subImage++) {
+
+ /* loop over texture sizes */
+ for (TexSize = 16; TexSize <= maxSize; TexSize *= 2) {
+ GLint bytesPerImage;
+ double mbPerSec;
+
+ bytesPerImage = TexSize * TexSize * 4;
+ TexImage = malloc(bytesPerImage);
+
+ if (subImage) {
+ /* create initial, empty texture */
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
+ TexSize, TexSize, 0,
+ TexSrcFormat, TexSrcType, NULL);
+ rate = PerfMeasureRate(UploadTexSubImage2D);
+ }
+ else {
+ rate = PerfMeasureRate(UploadTexImage2D);
+ }
+
+ mbPerSec = rate * bytesPerImage / (1024.0 * 1024.0);
+
+ printf(" glTex%sImage2D(%s %d x %d): "
+ "%.1f images/sec, %.1f MB/sec\n",
+ (subImage ? "Sub" : ""),
+ SrcFormats[fmt].name, TexSize, TexSize, rate, mbPerSec);
+
+ free(TexImage);
+ }
+ }
+ }
+
+ exit(0);
+}
diff --git a/progs/perf/vbo.c b/progs/perf/vbo.c
new file mode 100644
index 0000000000..8545a33b7e
--- /dev/null
+++ b/progs/perf/vbo.c
@@ -0,0 +1,138 @@
+/*
+ * 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"
+
+
+int WinWidth = 100, WinHeight = 100;
+
+static GLuint VBO;
+
+static GLsizei VBOSize = 0;
+static GLubyte *VBOData = NULL;
+
+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;
+ for (i = 0; i < count; i++) {
+ glBufferDataARB(GL_ARRAY_BUFFER, VBOSize, VBOData, GL_STREAM_DRAW_ARB);
+
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+ }
+ glFinish();
+}
+
+
+static void
+UploadSubVBO(unsigned count)
+{
+ unsigned i;
+ for (i = 0; i < count; i++) {
+ if (BufferSubDataInHalves) {
+ GLsizei half = VBOSize / 2;
+ glBufferSubDataARB(GL_ARRAY_BUFFER, 0, half, VBOData);
+ glBufferSubDataARB(GL_ARRAY_BUFFER, half, half, VBOData + half);
+ }
+ else {
+ glBufferSubDataARB(GL_ARRAY_BUFFER, 0, VBOSize, VBOData);
+ }
+
+ if (DrawPoint)
+ glDrawArrays(GL_POINTS, 0, 1);
+ }
+ glFinish();
+}
+
+
+static const GLsizei Sizes[] = {
+ 64,
+ 1024,
+ 16*1024,
+ 256*1024,
+ 1024*1024,
+ 16*1024*1024,
+ 0 /* end of list */
+};
+
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ double rate, mbPerSec;
+ int sub, sz;
+
+ /* loop over whole/sub buffer upload */
+ for (sub = 0; sub < 2; sub++) {
+
+ /* loop over VBO sizes */
+ for (sz = 0; Sizes[sz]; sz++) {
+ VBOSize = Sizes[sz];
+
+ VBOData = malloc(VBOSize);
+ memcpy(VBOData, Vertex0, sizeof(Vertex0));
+
+ if (sub)
+ rate = PerfMeasureRate(UploadSubVBO);
+ else
+ rate = PerfMeasureRate(UploadVBO);
+
+ mbPerSec = rate * VBOSize / (1024.0 * 1024.0);
+
+ printf(" glBuffer%sDataARB(size = %d): %.1f MB/sec\n",
+ (sub ? "Sub" : ""), VBOSize, mbPerSec);
+
+ free(VBOData);
+ }
+ }
+
+ exit(0);
+}
diff --git a/progs/perf/vertexrate.c b/progs/perf/vertexrate.c
new file mode 100644
index 0000000000..f7e02624cc
--- /dev/null
+++ b/progs/perf/vertexrate.c
@@ -0,0 +1,271 @@
+/*
+ * 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();
+}
+
+
+/** Called from test harness/main */
+void
+PerfDraw(void)
+{
+ double rate;
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ printf("Vertex rate (%d x Vertex%df)\n", NumVerts, VERT_SIZE);
+
+ rate = PerfMeasureRate(DrawImmediate);
+ rate *= NumVerts;
+ printf(" Immediate mode: %.1f verts/sec\n", rate);
+
+ rate = PerfMeasureRate(DrawArraysMem);
+ rate *= NumVerts;
+ printf(" glDrawArrays: %.1f verts/sec\n", rate);
+
+ rate = PerfMeasureRate(DrawArraysVBO);
+ rate *= NumVerts;
+ printf(" VBO glDrawArrays: %.1f verts/sec\n", rate);
+
+ rate = PerfMeasureRate(DrawElementsMem);
+ rate *= NumVerts;
+ printf(" glDrawElements: %.1f verts/sec\n", rate);
+
+ rate = PerfMeasureRate(DrawElementsBO);
+ rate *= NumVerts;
+ printf(" VBO glDrawElements: %.1f verts/sec\n", rate);
+
+ rate = PerfMeasureRate(DrawRangeElementsMem);
+ rate *= NumVerts;
+ printf(" glDrawRangeElements: %.1f verts/sec\n", rate);
+
+ rate = PerfMeasureRate(DrawRangeElementsBO);
+ rate *= NumVerts;
+ printf(" VBO glDrawRangeElements: %.1f verts/sec\n", rate);
+
+ exit(0);
+}
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