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authorJosé Fonseca <jrfonseca@tungstengraphics.com>2008-05-24 19:25:33 +0900
committerJosé Fonseca <jrfonseca@tungstengraphics.com>2008-05-24 19:25:33 +0900
commit345eb7fb70840829571cbacdb3980181df8e018a (patch)
tree329482e9c73d6dde9feb652f7577ec94cbbbd258
parent059a652d64da470ccc7f2f3266fd64721848a7be (diff)
gallium: Poor-man profiler for win32 kernel.
-rw-r--r--src/gallium/auxiliary/util/p_debug_prof.c175
-rw-r--r--src/gallium/include/pipe/p_debug.h11
2 files changed, 186 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/p_debug_prof.c b/src/gallium/auxiliary/util/p_debug_prof.c
new file mode 100644
index 00000000000..958f99c327c
--- /dev/null
+++ b/src/gallium/auxiliary/util/p_debug_prof.c
@@ -0,0 +1,175 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * Poor-man profiling.
+ *
+ * @author José Fonseca <jrfonseca@tungstengraphics.com>
+ *
+ * @sa http://blogs.msdn.com/joshpoley/archive/2008/03/12/poor-man-s-profiler.aspx
+ * @sa http://www.johnpanzer.com/aci_cuj/index.html
+ */
+
+#include "pipe/p_config.h"
+
+#if defined(PROFILE) && defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
+
+#include <windows.h>
+#include <winddi.h>
+
+#include "pipe/p_debug.h"
+#include "util/u_string.h"
+
+
+#define PROFILE_FILE_SIZE 4*1024*1024
+#define FILE_NAME_SIZE 256
+
+static WCHAR wFileName[FILE_NAME_SIZE];
+static ULONG_PTR iFile = 0;
+static void *pMap = NULL;
+static void *pMapEnd = NULL;
+
+
+/**
+ * Called at the start of every method or function.
+ *
+ * @sa http://msdn.microsoft.com/en-us/library/c63a9b7h.aspx
+ */
+void __declspec(naked) __cdecl
+_penter(void) {
+ _asm {
+ push ebx
+ mov ebx, [pMap]
+ test ebx, ebx
+ jz done
+ cmp ebx, [pMapEnd]
+ je done
+ push eax
+ push edx
+ mov eax, [esp+12]
+ and eax, 0xfffffffe
+ mov [ebx], eax
+ add ebx, 4
+ rdtsc
+ mov [ebx], eax
+ add ebx, 4
+ mov [pMap], ebx
+ pop edx
+ pop eax
+done:
+ pop ebx
+ ret
+ }
+}
+
+
+/**
+ * Called at the end of Calls the end of every method or function.
+ *
+ * @sa http://msdn.microsoft.com/en-us/library/xc11y76y.aspx
+ */
+void __declspec(naked) __cdecl
+_pexit(void) {
+ _asm {
+ push ebx
+ mov ebx, [pMap]
+ test ebx, ebx
+ jz done
+ cmp ebx, [pMapEnd]
+ je done
+ push eax
+ push edx
+ mov eax, [esp+12]
+ or eax, 0x00000001
+ mov [ebx], eax
+ add ebx, 4
+ rdtsc
+ mov [ebx], eax
+ add ebx, 4
+ mov [pMap], ebx
+ pop edx
+ pop eax
+done:
+ pop ebx
+ ret
+ }
+}
+
+
+void __declspec(naked)
+__debug_profile_reference1(void) {
+ _asm {
+ call _penter
+ call _pexit
+ ret
+ }
+}
+
+
+void __declspec(naked)
+__debug_profile_reference2(void) {
+ _asm {
+ call _penter
+ call __debug_profile_reference1
+ call _pexit
+ ret
+ }
+}
+
+
+void
+debug_profile_start(void)
+{
+ static unsigned no = 0;
+ char filename[FILE_NAME_SIZE];
+ unsigned i;
+
+ util_snprintf(filename, sizeof(filename), "\\??\\c:\\%03u.prof", ++no);
+ for(i = 0; i < FILE_NAME_SIZE; ++i)
+ wFileName[i] = (WCHAR)filename[i];
+
+ pMap = EngMapFile(wFileName, PROFILE_FILE_SIZE, &iFile);
+ if(pMap) {
+ pMapEnd = (unsigned char*)pMap + PROFILE_FILE_SIZE;
+ /* reference functions for calibration purposes */
+ __debug_profile_reference2();
+ }
+}
+
+void
+debug_profile_stop(void)
+{
+ if(iFile) {
+ EngUnmapFile(iFile);
+ /* TODO: truncate file */
+ }
+ iFile = 0;
+ pMapEnd = pMap = NULL;
+}
+
+#endif /* PROFILE */
diff --git a/src/gallium/include/pipe/p_debug.h b/src/gallium/include/pipe/p_debug.h
index 1263d0da619..0af635be573 100644
--- a/src/gallium/include/pipe/p_debug.h
+++ b/src/gallium/include/pipe/p_debug.h
@@ -313,6 +313,17 @@ void
debug_memory_end(unsigned long beginning);
+#if defined(PROFILE) && defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
+
+void
+debug_profile_start(void);
+
+void
+debug_profile_stop(void);
+
+#endif
+
+
#ifdef DEBUG
void debug_dump_image(const char *prefix,
unsigned format, unsigned cpp,