Merge pull request #422 from bunnei/shader-mov

Shader instructions MOV_C, MOV_R, and several minor GPU things

src/video_core/engines/maxwell_3d.cpp

@@ -208,6 +208,16 @@ void Maxwell3D::DrawArrays() {
 
     const bool is_indexed{regs.index_array.count && !regs.vertex_buffer.count};
     VideoCore::g_renderer->Rasterizer()->AccelerateDrawBatch(is_indexed);
+
+    // TODO(bunnei): Below, we reset vertex count so that we can use these registers to determine if
+    // the game is trying to draw indexed or direct mode. This needs to be verified on HW still -
+    // it's possible that it is incorrect and that there is some other register used to specify the
+    // drawing mode.
+    if (is_indexed) {
+        regs.index_array.count = 0;
+    } else {
+        regs.vertex_buffer.count = 0;
+    }
 }
 
 void Maxwell3D::ProcessCBBind(Regs::ShaderStage stage) {

src/video_core/engines/shader_bytecode.h

@@ -310,6 +310,7 @@ public:
         SHR_C,
         SHR_R,
         SHR_IMM,
+        FMNMX,
         FSETP_C, // Set Predicate
         FSETP_R,
         FSETP_IMM,
@@ -460,6 +461,7 @@ private:
             INST("0100110000101---", Id::SHR_C, Type::Arithmetic, "SHR_C"),
             INST("0101110000101---", Id::SHR_R, Type::Arithmetic, "SHR_R"),
             INST("0011100-00101---", Id::SHR_IMM, Type::Arithmetic, "SHR_IMM"),
+            INST("0101110001100---", Id::FMNMX, Type::Arithmetic, "FMNMX"),
             INST("0100110011100---", Id::I2I_C, Type::Conversion, "I2I_C"),
             INST("0101110011100---", Id::I2I_R, Type::Conversion, "I2I_R"),
             INST("01110001-1000---", Id::I2I_IMM, Type::Conversion, "I2I_IMM"),

src/video_core/renderer_opengl/gl_shader_decompiler.cpp

@@ -664,6 +664,12 @@ private:
             }
 
             switch (opcode->GetId()) {
+            case OpCode::Id::MOV_C:
+            case OpCode::Id::MOV_R: {
+                regs.SetRegisterToFloat(instr.gpr0, 0, op_b, 1, 1);
+                break;
+            }
+
             case OpCode::Id::MOV32_IMM: {
                 // mov32i doesn't have abs or neg bits.
                 regs.SetRegisterToFloat(instr.gpr0, 0, GetImmediate32(instr), 1, 1);

src/video_core/renderer_opengl/maxwell_to_gl.h

@@ -36,6 +36,18 @@ inline GLenum VertexType(Maxwell::VertexAttribute attrib) {
         return {};
     }
 
+    case Maxwell::VertexAttribute::Type::SignedNorm: {
+
+        switch (attrib.size) {
+        case Maxwell::VertexAttribute::Size::Size_8_8_8_8:
+            return GL_BYTE;
+        }
+
+        NGLOG_CRITICAL(Render_OpenGL, "Unimplemented vertex size={}", attrib.SizeString());
+        UNREACHABLE();
+        return {};
+    }
+
     case Maxwell::VertexAttribute::Type::Float:
         return GL_FLOAT;
     }