From 000e78144ce87d0be1749f26b9d0494d3c4ddf2f Mon Sep 17 00:00:00 2001
From: Yuri Kunde Schlesner <yuriks@yuriks.net>
Date: Fri, 27 Jan 2017 20:16:36 -0800
Subject: VideoCore: Split rasterizer regs from Regs struct

---
 src/video_core/regs_rasterizer.h | 129 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 src/video_core/regs_rasterizer.h

(limited to 'src/video_core/regs_rasterizer.h')

diff --git a/src/video_core/regs_rasterizer.h b/src/video_core/regs_rasterizer.h
new file mode 100644
index 000000000..a471a3b38
--- /dev/null
+++ b/src/video_core/regs_rasterizer.h
@@ -0,0 +1,129 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace Pica {
+
+struct RasterizerRegs {
+    enum class CullMode : u32 {
+        // Select which polygons are considered to be "frontfacing".
+        KeepAll = 0,
+        KeepClockWise = 1,
+        KeepCounterClockWise = 2,
+        // TODO: What does the third value imply?
+    };
+
+    union {
+        BitField<0, 2, CullMode> cull_mode;
+    };
+
+    BitField<0, 24, u32> viewport_size_x;
+
+    INSERT_PADDING_WORDS(0x1);
+
+    BitField<0, 24, u32> viewport_size_y;
+
+    INSERT_PADDING_WORDS(0x9);
+
+    BitField<0, 24, u32> viewport_depth_range;      // float24
+    BitField<0, 24, u32> viewport_depth_near_plane; // float24
+
+    BitField<0, 3, u32> vs_output_total;
+
+    union VSOutputAttributes {
+        // Maps components of output vertex attributes to semantics
+        enum Semantic : u32 {
+            POSITION_X = 0,
+            POSITION_Y = 1,
+            POSITION_Z = 2,
+            POSITION_W = 3,
+
+            QUATERNION_X = 4,
+            QUATERNION_Y = 5,
+            QUATERNION_Z = 6,
+            QUATERNION_W = 7,
+
+            COLOR_R = 8,
+            COLOR_G = 9,
+            COLOR_B = 10,
+            COLOR_A = 11,
+
+            TEXCOORD0_U = 12,
+            TEXCOORD0_V = 13,
+            TEXCOORD1_U = 14,
+            TEXCOORD1_V = 15,
+
+            TEXCOORD0_W = 16,
+
+            VIEW_X = 18,
+            VIEW_Y = 19,
+            VIEW_Z = 20,
+
+            TEXCOORD2_U = 22,
+            TEXCOORD2_V = 23,
+
+            INVALID = 31,
+        };
+
+        BitField<0, 5, Semantic> map_x;
+        BitField<8, 5, Semantic> map_y;
+        BitField<16, 5, Semantic> map_z;
+        BitField<24, 5, Semantic> map_w;
+    } vs_output_attributes[7];
+
+    INSERT_PADDING_WORDS(0xe);
+
+    enum class ScissorMode : u32 {
+        Disabled = 0,
+        Exclude = 1, // Exclude pixels inside the scissor box
+
+        Include = 3 // Exclude pixels outside the scissor box
+    };
+
+    struct {
+        BitField<0, 2, ScissorMode> mode;
+
+        union {
+            BitField<0, 16, u32> x1;
+            BitField<16, 16, u32> y1;
+        };
+
+        union {
+            BitField<0, 16, u32> x2;
+            BitField<16, 16, u32> y2;
+        };
+    } scissor_test;
+
+    union {
+        BitField<0, 10, s32> x;
+        BitField<16, 10, s32> y;
+    } viewport_corner;
+
+    INSERT_PADDING_WORDS(0x1);
+
+    // TODO: early depth
+    INSERT_PADDING_WORDS(0x1);
+
+    INSERT_PADDING_WORDS(0x2);
+
+    enum DepthBuffering : u32 {
+        WBuffering = 0,
+        ZBuffering = 1,
+    };
+    BitField<0, 1, DepthBuffering> depthmap_enable;
+
+    INSERT_PADDING_WORDS(0x12);
+};
+
+static_assert(sizeof(RasterizerRegs) == 0x40 * sizeof(u32),
+              "RasterizerRegs struct has incorrect size");
+
+} // namespace Pica
-- 
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