dolphin/Source/Plugins/Plugin_VideoOGL/Src/PixelShaderCache.cpp

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// Copyright (C) 2003-2008 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/
#include "Globals.h"
#include "Profiler.h"
#include "GLUtil.h"
#include <Cg/cg.h>
#include <Cg/cgGL.h>
#include <cmath>
#include "Statistics.h"
#include "Config.h"
#include "ImageWrite.h"
#include "Common.h"
#include "Render.h"
#include "VertexShader.h"
#include "PixelShaderCache.h"
#include "PixelShaderManager.h"
static int s_nMaxPixelInstructions;
static GLuint s_ColorMatrixProgram = 0;
PixelShaderCache::PSCache PixelShaderCache::pshaders;
PIXELSHADERUID PixelShaderCache::s_curuid;
static FRAGMENTSHADER* pShaderLast = NULL;
void SetPSConstant4f(int const_number, float f1, float f2, float f3, float f4)
{
glProgramEnvParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, const_number, f1, f2, f3, f4);
}
void SetPSConstant4fv(int const_number, const float *f)
{
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, const_number, f);
}
void PixelShaderCache::Init()
{
GL_REPORT_ERRORD();
glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB, (GLint *)&s_nMaxPixelInstructions);
int maxinst, maxattribs;
glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB, (GLint *)&maxinst);
glGetProgramivARB(GL_FRAGMENT_PROGRAM_ARB, GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB, (GLint *)&maxattribs);
ERROR_LOG("pixel max_alu=%d, max_inst=%d, max_attrib=%d\n", s_nMaxPixelInstructions, maxinst, maxattribs);
char pmatrixprog[1024];
sprintf(pmatrixprog, "!!ARBfp1.0"
"TEMP R0;\n"
"TEMP R1;\n"
"TEX R0, fragment.texcoord[0], texture[0], RECT;\n"
"DP4 R1.w, R0, program.env[%d];\n"
"DP4 R1.z, R0, program.env[%d];\n"
"DP4 R1.x, R0, program.env[%d];\n"
"DP4 R1.y, R0, program.env[%d];\n"
"ADD result.color, R1, program.env[%d];\n"
"END\n", C_COLORMATRIX+3, C_COLORMATRIX+2, C_COLORMATRIX, C_COLORMATRIX+1, C_COLORMATRIX+4);
glGenProgramsARB(1, &s_ColorMatrixProgram);
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, s_ColorMatrixProgram);
glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, (GLsizei)strlen(pmatrixprog), pmatrixprog);
GLenum err = GL_NO_ERROR;
GL_REPORT_ERROR();
if (err != GL_NO_ERROR) {
ERROR_LOG("Failed to create color matrix fragment program\n");
glDeleteProgramsARB(1, &s_ColorMatrixProgram);
s_ColorMatrixProgram = 0;
}
}
void PixelShaderCache::Shutdown()
{
glDeleteProgramsARB(1, &s_ColorMatrixProgram);
s_ColorMatrixProgram = 0;
PSCache::iterator iter = pshaders.begin();
for (; iter != pshaders.end(); iter++)
iter->second.Destroy();
pshaders.clear();
}
GLuint PixelShaderCache::GetColorMatrixProgram()
{
return s_ColorMatrixProgram;
}
FRAGMENTSHADER* PixelShaderCache::GetShader()
{
DVSTARTPROFILE();
PIXELSHADERUID uid;
u32 zbufrender = (Renderer::GetZBufferTarget() && bpmem.zmode.updateenable) ? 1 : 0;
u32 zBufRenderToCol0 = Renderer::GetRenderMode() != Renderer::RM_Normal;
GetPixelShaderId(uid, PixelShaderManager::GetTextureMask(), zbufrender, zBufRenderToCol0);
PSCache::iterator iter = pshaders.find(uid);
if (iter != pshaders.end()) {
iter->second.frameCount = frameCount;
PSCacheEntry &entry = iter->second;
if (&entry.shader != pShaderLast)
{
pShaderLast = &entry.shader;
}
return pShaderLast;
}
PSCacheEntry& newentry = pshaders[uid];
char *code = GeneratePixelShader(PixelShaderManager::GetTextureMask(),
Renderer::GetZBufferTarget() != 0,
Renderer::GetRenderMode() != Renderer::RM_Normal);
#if defined(_DEBUG) || defined(DEBUGFAST)
if (g_Config.iLog & CONF_SAVESHADERS && code) {
static int counter = 0;
char szTemp[MAX_PATH];
sprintf(szTemp, "%s/ps_%04i.txt", g_Config.texDumpPath, counter++);
SaveData(szTemp, code);
}
#endif
// printf("Compiling pixel shader. size = %i\n", strlen(code));
if (!code || !CompilePixelShader(newentry.shader, code)) {
ERROR_LOG("failed to create pixel shader\n");
return NULL;
}
//Make an entry in the table
newentry.frameCount = frameCount;
pShaderLast = &newentry.shader;
INCSTAT(stats.numPixelShadersCreated);
SETSTAT(stats.numPixelShadersAlive, pshaders.size());
return pShaderLast;
}
void PixelShaderCache::Cleanup()
{
PSCache::iterator iter = pshaders.begin();
while (iter != pshaders.end()) {
PSCacheEntry &entry = iter->second;
if (entry.frameCount < frameCount - 400) {
entry.Destroy();
#ifdef _WIN32
iter = pshaders.erase(iter);
#else
pshaders.erase(iter++); // (this is gcc standard!)
#endif
}
else
iter++;
}
SETSTAT(stats.numPixelShadersAlive,(int)pshaders.size());
}
bool PixelShaderCache::CompilePixelShader(FRAGMENTSHADER& ps, const char* pstrprogram)
{
char stropt[64];
sprintf(stropt, "MaxLocalParams=32,NumInstructionSlots=%d", s_nMaxPixelInstructions);
const char* opts[] = {"-profileopts", stropt, "-O2", "-q", NULL};
CGprogram tempprog = cgCreateProgram(g_cgcontext, CG_SOURCE, pstrprogram, g_cgfProf, "main", opts);
if (!cgIsProgram(tempprog) || cgGetError() != CG_NO_ERROR) {
ERROR_LOG("Failed to create ps %s:\n", cgGetLastListing(g_cgcontext));
ERROR_LOG(pstrprogram);
return false;
}
char *pcompiledprog = (char*)cgGetProgramString(tempprog, CG_COMPILED_PROGRAM);
char *plocal = strstr(pcompiledprog, "program.local");
while (plocal != NULL) {
const char* penv = " program.env";
memcpy(plocal, penv, 13);
plocal = strstr(plocal+13, "program.local");
}
if (Renderer::IsUsingATIDrawBuffers()) {
// sometimes compilation can use ARB_draw_buffers, which would fail for ATI cards
// replace the three characters ARB with ATI. TODO - check whether this is fixed in modern ATI drivers.
char* poptions = strstr(pcompiledprog, "ARB_draw_buffers");
if (poptions != NULL) {
poptions[0] = 'A';
poptions[1] = 'T';
poptions[2] = 'I';
}
}
glGenProgramsARB( 1, &ps.glprogid );
glBindProgramARB( GL_FRAGMENT_PROGRAM_ARB, ps.glprogid );
glProgramStringARB( GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, (GLsizei)strlen(pcompiledprog), pcompiledprog);
GLenum err = GL_NO_ERROR;
GL_REPORT_ERROR();
if (err != GL_NO_ERROR) {
ERROR_LOG(pstrprogram);
ERROR_LOG(pcompiledprog);
}
cgDestroyProgram(tempprog);
// printf("Compiled pixel shader %i\n", ps.glprogid);
#if defined(_DEBUG) || defined(DEBUGFAST)
ps.strprog = pstrprogram;
#endif
return true;
}