From 1f660de7e53eb3675bc258dc57dfff99d779fc55 Mon Sep 17 00:00:00 2001 From: donkopunchstania Date: Wed, 1 Dec 2010 04:26:21 +0000 Subject: Avoid repeatedly asserting in SWG plugin when matrix indices don't match. Small change to the transform unit to avoid some unnecessary work. Check if Q is zero before dividing UV coordinates by it. Fixes issue 3454. git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6504 8ced0084-cf51-0410-be5f-012b33b47a6e --- Source/Core/VideoCommon/Src/PixelShaderGen.cpp | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'Source/Core/VideoCommon') diff --git a/Source/Core/VideoCommon/Src/PixelShaderGen.cpp b/Source/Core/VideoCommon/Src/PixelShaderGen.cpp index 44964acc61..9f0d20ba53 100644 --- a/Source/Core/VideoCommon/Src/PixelShaderGen.cpp +++ b/Source/Core/VideoCommon/Src/PixelShaderGen.cpp @@ -730,7 +730,12 @@ const char *GeneratePixelShaderCode(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType { // optional perspective divides if (xfregs.texcoords[i].texmtxinfo.projection == XF_TEXPROJ_STQ) - WRITE(p, "uv%d.xy = uv%d.xy/uv%d.z;\n", i, i, i); + { + WRITE(p, "if (uv%d.z)", i); + WRITE(p, " uv%d.xy = uv%d.xy / uv%d.z;\n", i, i, i); + WRITE(p, "else"); + WRITE(p, " uv%d.xy = float2(0.0f, 0.0f);\n", i); + } WRITE(p, "uv%d.xy = uv%d.xy * "I_TEXDIMS"[%d].zw;\n", i, i, i); } -- cgit v1.2.3