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D3D: Reduce the number of DirectX API calls. However, it does not seem to give tiny speed up. If anyone find that this change actually slows DX9 down, I will revert it.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4237 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
rice1964
2009-09-09 05:22:16 +00:00
parent aeac44596a
commit c1665ec6cd
4 changed files with 75 additions and 6 deletions
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40
Source/Plugins/Plugin_VideoDX9/Src/VertexShaderCache.cpp
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@ -32,21 +32,47 @@
VertexShaderCache::VSCache VertexShaderCache::vshaders;
const VertexShaderCache::VSCacheEntry *VertexShaderCache::last_entry;
VERTEXSHADERUID VertexShaderCache::last_entry_uid;
static float lastVSconstants[C_FOGPARAMS+8][4];
void SetVSConstant4f(int const_number, float f1, float f2, float f3, float f4)
{
const float f[4] = {f1, f2, f3, f4};
D3D::dev->SetVertexShaderConstantF(const_number, f, 1);
if( lastVSconstants[const_number][0] != f1 ||
lastVSconstants[const_number][1] != f2 ||
lastVSconstants[const_number][2] != f3 ||
lastVSconstants[const_number][3] != f4)
{
const float f[4] = {f1, f2, f3, f4};
D3D::dev->SetVertexShaderConstantF(const_number, f, 1);
lastVSconstants[const_number][0] = f1;
lastVSconstants[const_number][1] = f2;
lastVSconstants[const_number][2] = f3;
lastVSconstants[const_number][3] = f4;
}
}
void SetVSConstant4fv(int const_number, const float *f)
{
D3D::dev->SetVertexShaderConstantF(const_number, f, 1);
if( lastVSconstants[const_number][0] != f[0] ||
lastVSconstants[const_number][1] != f[1] ||
lastVSconstants[const_number][2] != f[2] ||
lastVSconstants[const_number][3] != f[3])
{
D3D::dev->SetVertexShaderConstantF(const_number, f, 1);
lastVSconstants[const_number][0] = f[0];
lastVSconstants[const_number][1] = f[1];
lastVSconstants[const_number][2] = f[2];
lastVSconstants[const_number][3] = f[3];
}
}
void VertexShaderCache::Init()
{
for( int i=0; i<C_FOGPARAMS+8*4; i++)
lastVSconstants[i/4][i%4]=-1;
memset(last_entry_uid.values,0xFF,sizeof(last_entry_uid.values));
}
void VertexShaderCache::Shutdown()
@ -63,6 +89,14 @@ bool VertexShaderCache::SetShader(u32 components)
VERTEXSHADERUID uid;
GetVertexShaderId(uid, components);
if (uid == last_entry_uid)
{
if (vshaders[uid].shader)
return true;
else
return false;
}
memcpy(&last_entry_uid, &uid, sizeof(VERTEXSHADERUID));
VSCache::iterator iter;
iter = vshaders.find(uid);