dolphin/Source/Plugins/Plugin_VideoOGL/Src/ProgramShaderCache.h
2013-03-17 16:49:42 +01:00

138 lines
3.3 KiB
C++

// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#ifndef PROGRAM_SHADER_CACHE_H_
#define PROGRAM_SHADER_CACHE_H_
#include "GLUtil.h"
#include "PixelShaderGen.h"
#include "VertexShaderGen.h"
#include "LinearDiskCache.h"
#include "ConfigManager.h"
namespace OGL
{
template<bool safe>
class _SHADERUID
{
public:
_VERTEXSHADERUID<safe> vuid;
_PIXELSHADERUID<safe> puid;
_SHADERUID() {}
_SHADERUID(const _SHADERUID& r) : vuid(r.vuid), puid(r.puid) {}
bool operator <(const _SHADERUID& r) const
{
if(puid < r.puid) return true;
if(r.puid < puid) return false;
if(vuid < r.vuid) return true;
return false;
}
bool operator ==(const _SHADERUID& r) const
{
return puid == r.puid && vuid == r.vuid;
}
};
typedef _SHADERUID<false> SHADERUID;
typedef _SHADERUID<true> SHADERUIDSAFE;
const int NUM_UNIFORMS = 19;
extern const char *UniformNames[NUM_UNIFORMS];
struct SHADER
{
SHADER() : glprogid(0) { }
void Destroy()
{
glDeleteProgram(glprogid);
glprogid = 0;
}
GLuint glprogid; // opengl program id
std::string strvprog, strpprog;
GLint UniformLocations[NUM_UNIFORMS];
void SetProgramVariables();
void SetProgramBindings();
void Bind();
};
class ProgramShaderCache
{
public:
struct PCacheEntry
{
SHADER shader;
SHADERUIDSAFE safe_uid;
bool in_cache;
void Destroy()
{
shader.Destroy();
}
};
static PCacheEntry GetShaderProgram(void);
static GLuint GetCurrentProgram(void);
static SHADER* SetShader(DSTALPHA_MODE dstAlphaMode, u32 components);
static void GetShaderId(SHADERUID *uid, DSTALPHA_MODE dstAlphaMode, u32 components);
static void GetSafeShaderId(SHADERUIDSAFE *uid, DSTALPHA_MODE dstAlphaMode, u32 components);
static void ValidateShaderIDs(PCacheEntry *entry, DSTALPHA_MODE dstAlphaMode, u32 components);
static bool CompileShader(SHADER &shader, const char* vcode, const char* pcode);
static GLuint CompileSingleShader(GLuint type, const char *code);
static void SetMultiPSConstant4fv(unsigned int offset, const float *f, unsigned int count);
static void SetMultiVSConstant4fv(unsigned int offset, const float *f, unsigned int count);
static void UploadConstants();
static void Init(void);
static void Shutdown(void);
static void CreateHeader(void);
private:
class ProgramShaderCacheInserter : public LinearDiskCacheReader<SHADERUID, u8>
{
public:
void Read(const SHADERUID &key, const u8 *value, u32 value_size);
};
typedef std::map<SHADERUID, PCacheEntry> PCache;
static PCache pshaders;
static PCacheEntry* last_entry;
static SHADERUID last_uid;
static GLintptr s_vs_data_size;
static GLintptr s_ps_data_size;
static GLintptr s_vs_data_offset;
static u8 *s_ubo_buffer;
static u32 s_ubo_buffer_size;
static bool s_ubo_dirty;
};
} // namespace OGL
#endif