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A few small cleanups based on code review.

This commit is contained in:
Scott Mansell 2015-01-23 04:38:36 +13:00
parent e88c02dece
commit daf760b202
3 changed files with 12 additions and 9 deletions
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16
Source/Core/VideoCommon/PixelShaderGen.cpp
View File

@ -272,10 +272,10 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
out.Write("};\n");
const bool forced_early_z = g_ActiveConfig.backend_info.bSupportsEarlyZ && bpmem.UseEarlyDepthTest()
&& (g_ActiveConfig.bFastDepthCalc || bpmem.alpha_test.TestResult() == AlphaTest::UNDETERMINED)
// We can't allow early_ztest for zfreeze because a reference poly is used
// to control the depth and we need a depth test after the alpha test.
&& !bpmem.genMode.zfreeze;
&& (g_ActiveConfig.bFastDepthCalc || bpmem.alpha_test.TestResult() == AlphaTest::UNDETERMINED)
// We can't allow early_ztest for zfreeze because depth is overridden per-pixel.
// This means it's impossible for zcomploc to be emulated on a zfrozen polygon.
&& !bpmem.genMode.zfreeze;
const bool per_pixel_depth = (bpmem.ztex2.op != ZTEXTURE_DISABLE && bpmem.UseLateDepthTest()) || (!g_ActiveConfig.bFastDepthCalc && bpmem.zmode.testenable && !forced_early_z) || bpmem.genMode.zfreeze;
if (forced_early_z)
@ -1028,9 +1028,9 @@ static inline void WriteAlphaTest(T& out, pixel_shader_uid_data* uid_data, API_T
// important that a reliable alpha test, so we just force the alpha test to always succeed.
// At least this seems to be less buggy.
uid_data->alpha_test_use_zcomploc_hack = bpmem.UseEarlyDepthTest()
&& bpmem.zmode.updateenable
&& !g_ActiveConfig.backend_info.bSupportsEarlyZ
&& !bpmem.genMode.zfreeze; // Might not be neccessary
&& bpmem.zmode.updateenable
&& !g_ActiveConfig.backend_info.bSupportsEarlyZ
&& !bpmem.genMode.zfreeze;
if (!uid_data->alpha_test_use_zcomploc_hack)
{
@ -1123,7 +1123,7 @@ static inline void WritePerPixelDepth(T& out, pixel_shader_uid_data* uid_data, A
// Opengl has reversed vertical screenspace coordiantes
if (ApiType == API_OPENGL)
out.Write("\tscreenpos.y = %i - screenpos.y - 1;\n", EFB_HEIGHT);
out.Write("\tscreenpos.y = %i - screenpos.y;\n", EFB_HEIGHT);
out.Write("\tdepth = float(" I_ZSLOPE".z + " I_ZSLOPE".x * screenpos.x + " I_ZSLOPE".y * screenpos.y) / float(0xFFFFFF);\n");
}

3
Source/Core/VideoCommon/PixelShaderGen.h
View File

@ -64,7 +64,10 @@ struct pixel_shader_uid_data
u32 forced_early_z : 1;
u32 early_ztest : 1;
u32 bounding_box : 1;
// TODO: 31 bits of padding is a waste. Can we free up some bits elseware?
u32 zfreeze : 1;
u32 pad : 31;
u32 texMtxInfo_n_projection : 8; // 8x1 bit
u32 tevindref_bi0 : 3;

2
Source/Core/VideoCommon/VertexManagerBase.cpp
View File

@ -250,7 +250,7 @@ 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};
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