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Fixes Mario Tennis Gimmick Courts and adds support for FastDepthCalc

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- Calculate ZSlope every flush but only set PixelShader Constant on Reset Buffer when zfreeze
- Fixed another Pixel Shader bug in D3D that was giving me grief
This commit is contained in:
NanoByte011
2015-01-13 02:55:25 -07:00
committed by Scott Mansell
parent 6d5065c58d
commit add59b3bea
7 changed files with 52 additions and 26 deletions
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22
Source/Core/VideoCommon/VertexManagerBase.cpp
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@ -25,6 +25,8 @@ u8 *VertexManager::s_pEndBufferPointer;
PrimitiveType VertexManager::current_primitive_type;
Slope VertexManager::ZSlope;
bool VertexManager::IsFlushed;
static const PrimitiveType primitive_from_gx[8] = {
@ -246,6 +248,8 @@ void VertexManager::CalculateZSlope(u32 stride)
{
float vtx[9];
float out[12];
float viewOffset[2] = { xfmem.viewport.xOrig - bpmem.scissorOffset.x * 2,
xfmem.viewport.yOrig - bpmem.scissorOffset.y * 2};
// Lookup vertices of the last rendered triangle and software-transform them
// This allows us to determine the depth slope, which will be used if zfreeze
@ -260,9 +264,11 @@ void VertexManager::CalculateZSlope(u32 stride)
VertexShaderManager::TransformToClipSpace(&vtx[i * 3], &out[i * 4]);
// Transform to Screenspace
out[0 + i * 4] = out[0 + i * 4] / out[3 + i * 4] * xfmem.viewport.wd + (xfmem.viewport.xOrig - 342);
out[1 + i * 4] = out[1 + i * 4] / out[3 + i * 4] * xfmem.viewport.ht + (xfmem.viewport.yOrig - 342);
out[2 + i * 4] = out[2 + i * 4] / out[3 + i * 4] * xfmem.viewport.zRange + xfmem.viewport.farZ;
float w = out[3 + i * 4];
out[0 + i * 4] = out[0 + i * 4] / w * xfmem.viewport.wd + viewOffset[0];
out[1 + i * 4] = out[1 + i * 4] / w * xfmem.viewport.ht + viewOffset[1];
out[2 + i * 4] = out[2 + i * 4] / w * xfmem.viewport.zRange + xfmem.viewport.farZ;
}
float dx31 = out[8] - out[0];
@ -276,9 +282,11 @@ void VertexManager::CalculateZSlope(u32 stride)
float b = dx31 * DF21 + dx12 * DF31;
float c = -dx12 * dy31 - dx31 * -dy12;
float slope_dfdx = -a / c;
float slope_dfdy = -b / c;
float slope_f0 = out[2] - (out[0] * slope_dfdx + out[1] * slope_dfdy);
// Stop divide by zero
if (c == 0)
return;
PixelShaderManager::SetZSlope(slope_dfdx, slope_dfdy, slope_f0);
ZSlope.dfdx = -a / c;
ZSlope.dfdy = -b / c;
ZSlope.f0 = out[2] - (out[0] * ZSlope.dfdx + out[1] * ZSlope.dfdy);
}