summaryrefslogtreecommitdiff
path: root/progs/perf/drawoverhead.c
diff options
context:
space:
mode:
Diffstat (limited to 'progs/perf/drawoverhead.c')
-rw-r--r--progs/perf/drawoverhead.c268
1 files changed, 134 insertions, 134 deletions
diff --git a/progs/perf/drawoverhead.c b/progs/perf/drawoverhead.c
index a1d5febf19..c1e166e746 100644
--- a/progs/perf/drawoverhead.c
+++ b/progs/perf/drawoverhead.c
@@ -1,134 +1,134 @@
-/*
- * 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);
- perf_printf(" Draw only: %.1f draws/second\n", rate0);
-
-
- rate1 = PerfMeasureRate(DrawNopStateChange);
- overhead = 1000.0 * (1.0 / rate1 - 1.0 / rate0);
- perf_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);
- perf_printf(" Draw w/ state change: %.1f draws/sec (overhead: %f ms/draw)\n",
- rate2, overhead);
-
- exit(0);
-}
-
+/*
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VMWARE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * Measure 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);
+ perf_printf(" Draw only: %.1f draws/second\n", rate0);
+
+
+ rate1 = PerfMeasureRate(DrawNopStateChange);
+ overhead = 1000.0 * (1.0 / rate1 - 1.0 / rate0);
+ perf_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);
+ perf_printf(" Draw w/ state change: %.1f draws/sec (overhead: %f ms/draw)\n",
+ rate2, overhead);
+
+ exit(0);
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-22 04:24:49 +0000