X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=flavors%2Fgl%2Fsource%2Fprofiler.cpp;fp=flavors%2Fgl%2Fsource%2Fprofiler.cpp;h=37caa68636745f85c0f6290e006fef426618370c;hb=f53057ce9b5eb3c7256a4aca95b4944733e14503;hp=0000000000000000000000000000000000000000;hpb=73c55fc88d8bad336fbd6cfecedc0cf18d06167c;p=gldbg.git

diff --git a/flavors/gl/source/profiler.cpp b/flavors/gl/source/profiler.cpp
new file mode 100644
index 0000000..37caa68
--- /dev/null
+++ b/flavors/gl/source/profiler.cpp
@@ -0,0 +1,110 @@
+/* $Id$
+
+This file is part of gldbg
+Copyright © 2010  Mikko Rasa, Mikkosoft Productions
+Distributed under the GPL
+*/
+
+#include <msp/io/print.h>
+#include <msp/time/units.h>
+#include <msp/time/utils.h>
+#include "gldbg.h"
+#include "profiler.h"
+
+using namespace std;
+using namespace Msp;
+
+Profiler::Profiler(GlDbg &dbg):
+	decoder(gldecoder_new(this, 0)),
+	enabled(false)
+{
+	dbg.get_command_interpreter().register_command("profile", this, &Profiler::cmd_profile)
+		.set_help("Profiles GL usage and performance",
+			"profile {on|off}\n"
+			"  Enables or disables profiling\n");
+
+	decoder->glDrawArrays = glDrawArrays;
+	decoder->glDrawElements = glDrawElements;
+	decoder->glDrawRangeElements = glDrawRangeElements;
+	decoder->glXSwapBuffers = glXSwapBuffers;
+}
+
+void Profiler::decode(const char *data, unsigned len)
+{
+	if(enabled)
+		gldecoder_decode(decoder, data, len);
+}
+
+void Profiler::cmd_profile(const string &args)
+{
+	if(args.empty() || args=="on")
+	{
+		enabled = true;
+		frames = 0;
+		draw_calls = 0;
+		vertices = 0;
+		triangles = 0;
+		start = Msp::Time::now();
+	}
+	else if(args=="off")
+		enabled = false;
+	else
+		throw InvalidParameterValue("Invalid argument");
+}
+
+void Profiler::glDrawArrays(void *user_data, GLenum mode, int, int count)
+{
+	glDrawElements(user_data, mode, count, 0, 0);
+}
+
+void Profiler::glDrawElements(void *user_data, GLenum mode, int count, GLenum, const void *)
+{
+	Profiler *self = reinterpret_cast<Profiler *>(user_data);
+
+	++self->draw_calls;
+	self->vertices += count;
+
+	switch(mode)
+	{
+	case GL_TRIANGLES:
+		self->triangles += count/3;
+		break;
+	case GL_TRIANGLE_STRIP:
+	case GL_TRIANGLE_FAN:
+		if(count>2)
+			self->triangles += count-2;
+		break;
+	case GL_QUADS:
+		self->triangles += count/4;
+		break;
+	case GL_QUAD_STRIP:
+		if(count>3)
+			self->triangles += count/2-1;
+		break;
+	}
+}
+
+void Profiler::glDrawRangeElements(void *user_data, GLenum mode, unsigned, unsigned, int count, GLenum type, const void *data)
+{
+	glDrawElements(user_data, mode, count, type, data);
+}
+
+void Profiler::glXSwapBuffers(void *user_data, Display *, GLXDrawable)
+{
+	Profiler *self = reinterpret_cast<Profiler *>(user_data);
+
+	IO::print("%d draw calls, %d vertices, %d triangles\n", self->draw_calls, self->vertices, self->triangles);
+	self->draw_calls = 0;
+	self->vertices = 0;
+	self->triangles = 0;
+
+	++self->frames;
+	Msp::Time::TimeStamp t = Msp::Time::now();
+	Msp::Time::TimeDelta dt = t-self->start;
+	if(dt>Msp::Time::sec)
+	{
+		Msp::IO::print("%d frames in %s seconds\n", self->frames, dt);
+		self->start = t;
+		self->frames = 0;
+	}
+}