diff options
| author | Jules Blok <jules.blok@gmail.com> | 2014-10-29 14:51:12 +0100 |
|---|---|---|
| committer | Jules Blok <jules.blok@gmail.com> | 2014-11-23 14:26:56 +0100 |
| commit | d583720a59e51d75c7772d745fb541a5cf00e2b8 (patch) | |
| tree | f586c2cc5bd09bbb13dd39de09ee61bf9d1b2ec9 /Source/Core/VideoCommon/GeometryShaderGen.cpp | |
| parent | 176191dc160145827d2dc86033f3af286c70669b (diff) | |
GeometryShaderGen: Support stereoscopy on GPUs without support for instancing.
Diffstat (limited to 'Source/Core/VideoCommon/GeometryShaderGen.cpp')
| -rw-r--r-- | Source/Core/VideoCommon/GeometryShaderGen.cpp | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Source/Core/VideoCommon/GeometryShaderGen.cpp b/Source/Core/VideoCommon/GeometryShaderGen.cpp index 20636cccb8..a6307fe722 100644 --- a/Source/Core/VideoCommon/GeometryShaderGen.cpp +++ b/Source/Core/VideoCommon/GeometryShaderGen.cpp @@ -45,8 +45,11 @@ static inline void GenerateGeometryShader(T& out, u32 components, API_TYPE ApiTy { // Insert layout parameters uid_data->stereo = g_ActiveConfig.bStereo; - out.Write("layout(triangles, invocations = %d) in;\n", g_ActiveConfig.bStereo ? 2 : 1); - out.Write("layout(triangle_strip, max_vertices = 3) out;\n"); + if (g_ActiveConfig.backend_info.bSupportsGSInstancing) + out.Write("layout(triangles, invocations = %d) in;\n", g_ActiveConfig.bStereo ? 2 : 1); + else + out.Write("layout(triangles) in;\n"); + out.Write("layout(triangle_strip, max_vertices = %d) out;\n", g_ActiveConfig.backend_info.bSupportsGSInstancing ? 3 : 6); } out.Write("%s", s_lighting_struct); @@ -67,9 +70,12 @@ static inline void GenerateGeometryShader(T& out, u32 components, API_TYPE ApiTy out.Write("flat out int eye;\n"); out.Write("void main()\n{\n"); + if (!g_ActiveConfig.backend_info.bSupportsGSInstancing) + out.Write("\tfor (eye = 0; eye < %d; ++eye) {\n", g_ActiveConfig.bStereo ? 2 : 1); out.Write("\tfor (int i = 0; i < gl_in.length(); ++i) {\n"); out.Write("\t\to = v[i];\n"); - out.Write("\t\teye = gl_InvocationID;\n"); + if (g_ActiveConfig.backend_info.bSupportsGSInstancing) + out.Write("\t\teye = gl_InvocationID;\n"); if (g_ActiveConfig.bStereo) out.Write("\t\to.pos = float4(dot(" I_STEREOPROJECTION"[eye * 4 + 0], v[i].rawpos), dot(" I_STEREOPROJECTION"[eye * 4 + 1], v[i].rawpos), dot(" I_STEREOPROJECTION"[eye * 4 + 2], v[i].rawpos), dot(" I_STEREOPROJECTION"[eye * 4 + 3], v[i].rawpos)); \n"); out.Write("\t\tgl_Position = o.pos;\n"); @@ -77,6 +83,8 @@ static inline void GenerateGeometryShader(T& out, u32 components, API_TYPE ApiTy out.Write("\t\tEmitVertex();\n"); out.Write("\t}\n"); out.Write("\tEndPrimitive();\n"); + if (!g_ActiveConfig.backend_info.bSupportsGSInstancing) + out.Write("\t}\n"); out.Write("}\n"); if (is_writing_shadercode) |