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/**************************************************************************
* Copyright 2012 Intel corporation
*
* 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 THE
* AUTHORS OR COPYRIGHT HOLDERS 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.
*
**************************************************************************/
#include <set>
#include <GL/gl.h>
#include <GL/glext.h>
#include "trace_callset.hpp"
#include "trim_callset.hpp"
#include "trace_parser.hpp"
typedef unsigned TrimFlags;
/**
* Trim flags
*/
enum {
/* Whether to trim calls that have no side effects. */
TRIM_FLAG_NO_SIDE_EFFECTS = (1 << 0),
/* Whether to trim calls to setup textures that are never used. */
TRIM_FLAG_TEXTURES = (1 << 1),
/* Whether to trim calls to setup shaders that are never used. */
TRIM_FLAG_SHADERS = (1 << 2),
/* Whether to trim drawing operations outside of the desired call-set. */
TRIM_FLAG_DRAWING = (1 << 3),
};
class TraceAnalyzer {
private:
std::map<std::string, std::set<unsigned> > resources;
std::map<std::string, std::set<std::string> > dependencies;
std::map<GLenum, unsigned> texture_map;
trim::CallSet required;
bool transformFeedbackActive;
bool framebufferObjectActive;
bool insideBeginEnd;
GLuint insideNewEndList;
GLenum activeTextureUnit;
GLuint activeProgram;
unsigned int trimFlags;
void provide(std::string resource, trace::CallNo call_no);
void providef(std::string resource, int resource_no, trace::CallNo call_no);
void link(std::string resource, std::string dependency);
void linkf(std::string resource, std::string dependency, int dep_no);
void unlink(std::string resource, std::string dependency);
void unlinkf(std::string resource, std::string dependency, int dep_no);
void unlinkAll(std::string resource);
void stateTrackPreCall(trace::Call *call);
void recordSideEffects(trace::Call *call);
bool callHasNoSideEffects(trace::Call *call, const char *name);
bool recordTextureSideEffects(trace::Call *call, const char *name);
bool recordShaderSideEffects(trace::Call *call, const char *name);
bool recordDrawingSideEffects(trace::Call *call, const char *name);
void stateTrackPostCall(trace::Call *call);
bool renderingHasSideEffect(void);
std::set<unsigned> resolve(std::string resource);
void consume(std::string resource);
void requireDependencies(trace::Call *call);
public:
TraceAnalyzer(TrimFlags trimFlags = -1);
~TraceAnalyzer();
/* Analyze this call by tracking state and recording all the
* resources provided by this call as side effects.. */
void analyze(trace::Call *call);
/* Require this call and all of its dependencies to be included in
* the final trace. */
void require(trace::Call *call);
/* Return a set of all the required calls, (both those calls added
* explicitly with require() and those implicitly depended
* upon. */
trim::CallSet *get_required(void);
};
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