diff options
Diffstat (limited to 'src/video_core/renderer_opengl/gl_shader_decompiler.cpp')
-rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index cb4b68b26..86d880dfc 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -896,6 +896,32 @@ private: instr.gpr0); break; } + case OpCode::Id::TEX: { + ASSERT_MSG(instr.attribute.fmt20.size == 4, "untested"); + const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8); + const std::string op_b = regs.GetRegisterAsFloat(instr.gpr8.Value() + 1); + const std::string sampler = GetSampler(instr.sampler); + const std::string coord = "vec2 coords = vec2(" + op_a + ", " + op_b + ");"; + // Add an extra scope and declare the texture coords inside to prevent overwriting + // them in case they are used as outputs of the texs instruction. + shader.AddLine("{"); + ++shader.scope; + shader.AddLine(coord); + const std::string texture = "texture(" + sampler + ", coords)"; + + size_t dest_elem{}; + for (size_t elem = 0; elem < instr.attribute.fmt20.size; ++elem) { + if (!instr.tex.IsComponentEnabled(elem)) { + // Skip disabled components + continue; + } + regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, dest_elem); + ++dest_elem; + } + --shader.scope; + shader.AddLine("}"); + break; + } case OpCode::Id::TEXS: { ASSERT_MSG(instr.attribute.fmt20.size == 4, "untested"); const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8); @@ -908,8 +934,23 @@ private: ++shader.scope; shader.AddLine(coord); const std::string texture = "texture(" + sampler + ", coords)"; - for (unsigned elem = 0; elem < instr.attribute.fmt20.size; ++elem) { - regs.SetRegisterToFloat(instr.gpr0, elem, texture, 1, 4, false, elem); + + // TEXS has two destination registers. RG goes into gpr0+0 and gpr0+1, and BA goes + // into gpr28+0 and gpr28+1 + size_t offset{}; + for (const auto& dest : {instr.gpr0.Value(), instr.gpr28.Value()}) { + for (unsigned elem = 0; elem < 2; ++elem) { + if (dest + elem >= Register::ZeroIndex) { + // Skip invalid register values + break; + } + regs.SetRegisterToFloat(dest, elem + offset, texture, 1, 4, false, elem); + if (!instr.texs.enable_g_component) { + // Skip the second component + break; + } + } + offset += 2; } --shader.scope; shader.AddLine("}"); |