dolphin/Source/Plugins/Plugin_VideoDX9/Src/VertexShaderCache.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 <map>
#include "D3DBase.h"
#include "Statistics.h"
#include "Utils.h"
#include "Profiler.h"
#include "VertexShaderCache.h"
#include "VertexLoader.h"
#include "BPMemory.h"
#include "XFMemory.h"
VShaderCache::VSCache VShaderCache::vshaders;
void VShaderCache::Init()
{
}
void VShaderCache::Shutdown()
{
VSCache::iterator iter = vshaders.begin();
for (; iter != vshaders.end(); iter++)
iter->second.Destroy();
vshaders.clear();
}
void VShaderCache::SetShader()
{
static LPDIRECT3DVERTEXSHADER9 shader = NULL;
if (D3D::GetShaderVersion() < 2)
return; // we are screwed
if (shader) {
//D3D::dev->SetVertexShader(shader);
return;
}
static LPDIRECT3DVERTEXSHADER9 lastShader = 0;
DVSTARTPROFILE();
u32 currentHash = 0x1337; // GetCurrentTEV();
VSCache::iterator iter;
iter = vshaders.find(currentHash);
if (iter != vshaders.end())
{
iter->second.frameCount=frameCount;
VSCacheEntry &entry = iter->second;
if (!lastShader || entry.shader != lastShader)
{
D3D::dev->SetVertexShader(entry.shader);
lastShader = entry.shader;
}
return;
}
const char *code = GenerateVertexShader();
shader = D3D::CompileVShader(code, int(strlen(code)));
if (shader)
{
//Make an entry in the table
VSCacheEntry entry;
entry.shader = shader;
entry.frameCount=frameCount;
vshaders[currentHash] = entry;
}
D3D::dev->SetVertexShader(shader);
INCSTAT(stats.numVertexShadersCreated);
SETSTAT(stats.numVertexShadersAlive, (int)vshaders.size());
}
void VShaderCache::Cleanup()
{
for (VSCache::iterator iter = vshaders.begin(); iter != vshaders.end();)
{
VSCacheEntry &entry = iter->second;
if (entry.frameCount < frameCount - 30)
{
entry.Destroy();
iter = vshaders.erase(iter);
}
else
{
++iter;
}
}
SETSTAT(stats.numVertexShadersAlive, (int)vshaders.size());
}