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SoftRasterizer: 

- Minor tweaks and code cleanup.
This commit is contained in:
rogerman 2015-07-31 05:54:27 +00:00
parent e41857fa82
commit 8c68f22165
1 changed files with 40 additions and 35 deletions
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75
desmume/src/rasterize.cpp
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@ -310,36 +310,25 @@ FORCEINLINE int edge_fx_fl::Step() {
static FORCEINLINE void alphaBlend(FragmentColor & dst, const FragmentColor & src)
static FORCEINLINE void alphaBlend(FragmentColor &dst, const FragmentColor src)
{
if(gfx3d.renderState.enableAlphaBlending)
if (src.a == 0)
{
if(src.a == 31 || dst.a == 0)
{
dst = src;
}
//else if(src.a == 0) { } //this is not necessary since it was handled earlier
else
{
u8 alpha = src.a+1;
u8 invAlpha = 32 - alpha;
dst.r = (alpha*src.r + invAlpha*dst.r)>>5;
dst.g = (alpha*src.g + invAlpha*dst.g)>>5;
dst.b = (alpha*src.b + invAlpha*dst.b)>>5;
}
dst.a = max(src.a,dst.a);
return;
}
if (src.a == 31 || dst.a == 0 || !gfx3d.renderState.enableAlphaBlending)
{
dst = src;
}
else
{
if(src.a == 0)
{
//do nothing; the fragment is totally transparent
}
else
{
dst = src;
}
const u8 alpha = src.a + 1;
const u8 invAlpha = 32 - alpha;
dst.r = (alpha*src.r + invAlpha*dst.r) >> 5;
dst.g = (alpha*src.g + invAlpha*dst.g) >> 5;
dst.b = (alpha*src.b + invAlpha*dst.b) >> 5;
dst.a = max(src.a, dst.a);
}
}
@ -1646,8 +1635,8 @@ Render3DError SoftRasterizerRenderer::UpdateEdgeMarkColorTable(const u16 *edgeMa
//we can do this by rendering a 3d frame and then freezing the system, but only changing the edge mark colors
for (size_t i = 0; i < 8; i++)
{
u16 col = edgeMarkColorTable[i];
this->edgeMarkTable[i].color = RGB15TO5555(col, (this->currentRenderState->enableAntialiasing) ? 0x0F : 0x1F);
const u16 col = edgeMarkColorTable[i];
this->edgeMarkTable[i].color = RGB15TO5555(col, (this->currentRenderState->enableAntialiasing) ? 0x10 : 0x1F);
this->edgeMarkTable[i].r = GFX3D_5TO6(this->edgeMarkTable[i].r);
this->edgeMarkTable[i].g = GFX3D_5TO6(this->edgeMarkTable[i].g);
this->edgeMarkTable[i].b = GFX3D_5TO6(this->edgeMarkTable[i].b);
@ -1839,10 +1828,10 @@ END_EDGE_MARK: ;
if (param.enableFog)
{
const u32 r = GFX3D_5TO6((param.fogColor)&0x1F);
const u32 g = GFX3D_5TO6((param.fogColor>>5)&0x1F);
const u32 b = GFX3D_5TO6((param.fogColor>>10)&0x1F);
const u32 a = (param.fogColor>>16)&0x1F;
const u32 r = GFX3D_5TO6( (param.fogColor ) & 0x1F );
const u32 g = GFX3D_5TO6( (param.fogColor >> 5) & 0x1F );
const u32 b = GFX3D_5TO6( (param.fogColor >> 10) & 0x1F );
const u32 a = (param.fogColor >> 16) & 0x1F;
const size_t fogIndex = depth >> 9;
assert(fogIndex < 32768);
@ -1850,12 +1839,12 @@ END_EDGE_MARK: ;
if (!param.fogAlphaOnly)
{
dstColor.r = ((128-fog)*dstColor.r + r*fog)>>7;
dstColor.g = ((128-fog)*dstColor.g + g*fog)>>7;
dstColor.b = ((128-fog)*dstColor.b + b*fog)>>7;
dstColor.r = ( (128-fog)*dstColor.r + r*fog ) >> 7;
dstColor.g = ( (128-fog)*dstColor.g + g*fog ) >> 7;
dstColor.b = ( (128-fog)*dstColor.b + b*fog ) >> 7;
}
dstColor.a = ((128-fog)*dstColor.a + a*fog)>>7;
dstColor.a = ( (128-fog)*dstColor.a + a*fog ) >> 7;
}
}
}
@ -2047,6 +2036,22 @@ Render3DError SoftRasterizerRenderer::SetFramebufferSize(size_t w, size_t h)
this->_framebufferColor = newFramebufferColor;
this->_framebufferAttributes = newFramebufferAttributes;
if (rasterizerCores == 0 || rasterizerCores == 1)
{
postprocessParam[0].startLine = 0;
postprocessParam[0].endLine = h;
}
else
{
const size_t linesPerThread = h / rasterizerCores;
for (size_t i = 0; i < rasterizerCores; i++)
{
postprocessParam[i].startLine = i * linesPerThread;
postprocessParam[i].endLine = (i < rasterizerCores - 1) ? (i + 1) * linesPerThread : h;
}
}
free_aligned(oldFramebufferColor);
delete oldFramebufferAttributes;