pica/regs: layout geometry shader configuration regs

All the register meanings are derived from ctrulib (3dbrew is outdated for most of them)

src/video_core/regs_pipeline.h

@@ -147,7 +147,15 @@ struct PipelineRegs {
     // Number of vertices to render
     u32 num_vertices;
 
-    INSERT_PADDING_WORDS(0x1);
+    enum class UseGS : u32 {
+        No = 0,
+        Yes = 2,
+    };
+
+    union {
+        BitField<0, 2, UseGS> use_gs;
+        BitField<31, 1, u32> variable_primitive;
+    };
 
     // The index of the first vertex to render
     u32 vertex_offset;
@@ -218,7 +226,29 @@ struct PipelineRegs {
 
     GPUMode gpu_mode;
 
-    INSERT_PADDING_WORDS(0x18);
+    INSERT_PADDING_WORDS(0x4);
+    BitField<0, 4, u32> vs_outmap_total_minus_1_a;
+    INSERT_PADDING_WORDS(0x6);
+    BitField<0, 4, u32> vs_outmap_total_minus_1_b;
+
+    enum class GSMode : u32 {
+        Point = 0,
+        VariablePrimitive = 1,
+        FixedPrimitive = 2,
+    };
+
+    union {
+        BitField<0, 8, GSMode> mode;
+        BitField<8, 4, u32> fixed_vertex_num_minus_1;
+        BitField<12, 4, u32> stride_minus_1;
+        BitField<16, 4, u32> start_index;
+    } gs_config;
+
+    INSERT_PADDING_WORDS(0x1);
+
+    u32 variable_vertex_main_num_minus_1;
+
+    INSERT_PADDING_WORDS(0x9);
 
     enum class TriangleTopology : u32 {
         List = 0,

src/video_core/regs_shader.h

@@ -24,9 +24,16 @@ struct ShaderRegs {
 
     INSERT_PADDING_WORDS(0x4);
 
+    enum ShaderMode {
+        GS = 0x08,
+        VS = 0xA0,
+    };
+
     union {
         // Number of input attributes to shader unit - 1
         BitField<0, 4, u32> max_input_attribute_index;
+        BitField<8, 8, u32> input_to_uniform;
+        BitField<24, 8, ShaderMode> shader_mode;
     };
 
     // Offset to shader program entry point (in words)