Pica/VertexShader: Implement MAX instructions.

11 years ago · cd163fb59a
1 changed files with 9 additions and 0 deletions
--- a/src/video_core/vertex_shader.cpp
+++ b/src/video_core/vertex_shader.cpp
@ -197,6 +197,15 @@ static void ProcessShaderCode(VertexShaderState& state) {
                break;
            }

+            case Instruction::OpCode::MAX:
+                for (int i = 0; i < 4; ++i) {
+                    if (!swizzle.DestComponentEnabled(i))
+                        continue;
+
+                    dest[i] = std::max(src1[i], src2[i]);
+                }
+                break;
+
            case Instruction::OpCode::DP3:
            case Instruction::OpCode::DP4:
            {