VideoCore: Split framebuffer regs from Regs struct

src/citra_qt/debugger/graphics/graphics_surface.cpp

@@ -414,30 +414,30 @@ void GraphicsSurfaceWidget::OnUpdate() {
         // TODO: Store a reference to the registers in the debug context instead of accessing them
         // directly...
 
-        const auto& framebuffer = Pica::g_state.regs.framebuffer;
+        const auto& framebuffer = Pica::g_state.regs.framebuffer.framebuffer;
 
         surface_address = framebuffer.GetColorBufferPhysicalAddress();
         surface_width = framebuffer.GetWidth();
         surface_height = framebuffer.GetHeight();
 
         switch (framebuffer.color_format) {
-        case Pica::Regs::ColorFormat::RGBA8:
+        case Pica::FramebufferRegs::ColorFormat::RGBA8:
             surface_format = Format::RGBA8;
             break;
 
-        case Pica::Regs::ColorFormat::RGB8:
+        case Pica::FramebufferRegs::ColorFormat::RGB8:
             surface_format = Format::RGB8;
             break;
 
-        case Pica::Regs::ColorFormat::RGB5A1:
+        case Pica::FramebufferRegs::ColorFormat::RGB5A1:
             surface_format = Format::RGB5A1;
             break;
 
-        case Pica::Regs::ColorFormat::RGB565:
+        case Pica::FramebufferRegs::ColorFormat::RGB565:
             surface_format = Format::RGB565;
             break;
 
-        case Pica::Regs::ColorFormat::RGBA4:
+        case Pica::FramebufferRegs::ColorFormat::RGBA4:
             surface_format = Format::RGBA4;
             break;
 
@@ -450,22 +450,22 @@ void GraphicsSurfaceWidget::OnUpdate() {
     }
 
     case Source::DepthBuffer: {
-        const auto& framebuffer = Pica::g_state.regs.framebuffer;
+        const auto& framebuffer = Pica::g_state.regs.framebuffer.framebuffer;
 
         surface_address = framebuffer.GetDepthBufferPhysicalAddress();
         surface_width = framebuffer.GetWidth();
         surface_height = framebuffer.GetHeight();
 
         switch (framebuffer.depth_format) {
-        case Pica::Regs::DepthFormat::D16:
+        case Pica::FramebufferRegs::DepthFormat::D16:
             surface_format = Format::D16;
             break;
 
-        case Pica::Regs::DepthFormat::D24:
+        case Pica::FramebufferRegs::DepthFormat::D24:
             surface_format = Format::D24;
             break;
 
-        case Pica::Regs::DepthFormat::D24S8:
+        case Pica::FramebufferRegs::DepthFormat::D24S8:
             surface_format = Format::D24X8;
             break;
 
@@ -478,14 +478,14 @@ void GraphicsSurfaceWidget::OnUpdate() {
     }
 
     case Source::StencilBuffer: {
-        const auto& framebuffer = Pica::g_state.regs.framebuffer;
+        const auto& framebuffer = Pica::g_state.regs.framebuffer.framebuffer;
 
         surface_address = framebuffer.GetDepthBufferPhysicalAddress();
         surface_width = framebuffer.GetWidth();
         surface_height = framebuffer.GetHeight();
 
         switch (framebuffer.depth_format) {
-        case Pica::Regs::DepthFormat::D24S8:
+        case Pica::FramebufferRegs::DepthFormat::D24S8:
             surface_format = Format::X24S8;
             break;
 

src/video_core/CMakeLists.txt

@@ -32,6 +32,7 @@ set(HEADERS
             primitive_assembly.h
             rasterizer.h
             rasterizer_interface.h
+            regs_framebuffer.h
             regs_rasterizer.h
             regs_texturing.h
             renderer_base.h

src/video_core/pica.h

@@ -18,6 +18,7 @@
 #include "common/common_types.h"
 #include "common/logging/log.h"
 #include "common/vector_math.h"
+#include "video_core/regs_framebuffer.h"
 #include "video_core/regs_rasterizer.h"
 #include "video_core/regs_texturing.h"
 
@@ -51,268 +52,7 @@ struct Regs {
     INSERT_PADDING_WORDS(0x2f);
     RasterizerRegs rasterizer;
     TexturingRegs texturing;
-
+    FramebufferRegs framebuffer;
-    enum class LogicOp : u32 {
-        Clear = 0,
-        And = 1,
-        AndReverse = 2,
-        Copy = 3,
-        Set = 4,
-        CopyInverted = 5,
-        NoOp = 6,
-        Invert = 7,
-        Nand = 8,
-        Or = 9,
-        Nor = 10,
-        Xor = 11,
-        Equiv = 12,
-        AndInverted = 13,
-        OrReverse = 14,
-        OrInverted = 15,
-    };
-
-    enum class BlendEquation : u32 {
-        Add = 0,
-        Subtract = 1,
-        ReverseSubtract = 2,
-        Min = 3,
-        Max = 4,
-    };
-
-    enum class BlendFactor : u32 {
-        Zero = 0,
-        One = 1,
-        SourceColor = 2,
-        OneMinusSourceColor = 3,
-        DestColor = 4,
-        OneMinusDestColor = 5,
-        SourceAlpha = 6,
-        OneMinusSourceAlpha = 7,
-        DestAlpha = 8,
-        OneMinusDestAlpha = 9,
-        ConstantColor = 10,
-        OneMinusConstantColor = 11,
-        ConstantAlpha = 12,
-        OneMinusConstantAlpha = 13,
-        SourceAlphaSaturate = 14,
-    };
-
-    enum class CompareFunc : u32 {
-        Never = 0,
-        Always = 1,
-        Equal = 2,
-        NotEqual = 3,
-        LessThan = 4,
-        LessThanOrEqual = 5,
-        GreaterThan = 6,
-        GreaterThanOrEqual = 7,
-    };
-
-    enum class StencilAction : u32 {
-        Keep = 0,
-        Zero = 1,
-        Replace = 2,
-        Increment = 3,
-        Decrement = 4,
-        Invert = 5,
-        IncrementWrap = 6,
-        DecrementWrap = 7,
-    };
-
-    struct {
-        union {
-            // If false, logic blending is used
-            BitField<8, 1, u32> alphablend_enable;
-        };
-
-        union {
-            BitField<0, 8, BlendEquation> blend_equation_rgb;
-            BitField<8, 8, BlendEquation> blend_equation_a;
-
-            BitField<16, 4, BlendFactor> factor_source_rgb;
-            BitField<20, 4, BlendFactor> factor_dest_rgb;
-
-            BitField<24, 4, BlendFactor> factor_source_a;
-            BitField<28, 4, BlendFactor> factor_dest_a;
-        } alpha_blending;
-
-        union {
-            BitField<0, 4, LogicOp> logic_op;
-        };
-
-        union {
-            u32 raw;
-            BitField<0, 8, u32> r;
-            BitField<8, 8, u32> g;
-            BitField<16, 8, u32> b;
-            BitField<24, 8, u32> a;
-        } blend_const;
-
-        union {
-            BitField<0, 1, u32> enable;
-            BitField<4, 3, CompareFunc> func;
-            BitField<8, 8, u32> ref;
-        } alpha_test;
-
-        struct {
-            union {
-                // Raw value of this register
-                u32 raw_func;
-
-                // If true, enable stencil testing
-                BitField<0, 1, u32> enable;
-
-                // Comparison operation for stencil testing
-                BitField<4, 3, CompareFunc> func;
-
-                // Mask used to control writing to the stencil buffer
-                BitField<8, 8, u32> write_mask;
-
-                // Value to compare against for stencil testing
-                BitField<16, 8, u32> reference_value;
-
-                // Mask to apply on stencil test inputs
-                BitField<24, 8, u32> input_mask;
-            };
-
-            union {
-                // Raw value of this register
-                u32 raw_op;
-
-                // Action to perform when the stencil test fails
-                BitField<0, 3, StencilAction> action_stencil_fail;
-
-                // Action to perform when stencil testing passed but depth testing fails
-                BitField<4, 3, StencilAction> action_depth_fail;
-
-                // Action to perform when both stencil and depth testing pass
-                BitField<8, 3, StencilAction> action_depth_pass;
-            };
-        } stencil_test;
-
-        union {
-            BitField<0, 1, u32> depth_test_enable;
-            BitField<4, 3, CompareFunc> depth_test_func;
-            BitField<8, 1, u32> red_enable;
-            BitField<9, 1, u32> green_enable;
-            BitField<10, 1, u32> blue_enable;
-            BitField<11, 1, u32> alpha_enable;
-            BitField<12, 1, u32> depth_write_enable;
-        };
-
-        INSERT_PADDING_WORDS(0x8);
-    } output_merger;
-
-    // Components are laid out in reverse byte order, most significant bits first.
-    enum class ColorFormat : u32 {
-        RGBA8 = 0,
-        RGB8 = 1,
-        RGB5A1 = 2,
-        RGB565 = 3,
-        RGBA4 = 4,
-    };
-
-    enum class DepthFormat : u32 {
-        D16 = 0,
-        D24 = 2,
-        D24S8 = 3,
-    };
-
-    // Returns the number of bytes in the specified color format
-    static unsigned BytesPerColorPixel(ColorFormat format) {
-        switch (format) {
-        case ColorFormat::RGBA8:
-            return 4;
-        case ColorFormat::RGB8:
-            return 3;
-        case ColorFormat::RGB5A1:
-        case ColorFormat::RGB565:
-        case ColorFormat::RGBA4:
-            return 2;
-        default:
-            LOG_CRITICAL(HW_GPU, "Unknown color format %u", format);
-            UNIMPLEMENTED();
-        }
-    }
-
-    struct FramebufferConfig {
-        INSERT_PADDING_WORDS(0x3);
-
-        union {
-            BitField<0, 4, u32> allow_color_write; // 0 = disable, else enable
-        };
-
-        INSERT_PADDING_WORDS(0x1);
-
-        union {
-            BitField<0, 2, u32> allow_depth_stencil_write; // 0 = disable, else enable
-        };
-
-        DepthFormat depth_format; // TODO: Should be a BitField!
-        BitField<16, 3, ColorFormat> color_format;
-
-        INSERT_PADDING_WORDS(0x4);
-
-        u32 depth_buffer_address;
-        u32 color_buffer_address;
-
-        union {
-            // Apparently, the framebuffer width is stored as expected,
-            // while the height is stored as the actual height minus one.
-            // Hence, don't access these fields directly but use the accessors
-            // GetWidth() and GetHeight() instead.
-            BitField<0, 11, u32> width;
-            BitField<12, 10, u32> height;
-        };
-
-        INSERT_PADDING_WORDS(0x1);
-
-        inline u32 GetColorBufferPhysicalAddress() const {
-            return DecodeAddressRegister(color_buffer_address);
-        }
-        inline u32 GetDepthBufferPhysicalAddress() const {
-            return DecodeAddressRegister(depth_buffer_address);
-        }
-
-        inline u32 GetWidth() const {
-            return width;
-        }
-
-        inline u32 GetHeight() const {
-            return height + 1;
-        }
-    } framebuffer;
-
-    // Returns the number of bytes in the specified depth format
-    static u32 BytesPerDepthPixel(DepthFormat format) {
-        switch (format) {
-        case DepthFormat::D16:
-            return 2;
-        case DepthFormat::D24:
-            return 3;
-        case DepthFormat::D24S8:
-            return 4;
-        default:
-            LOG_CRITICAL(HW_GPU, "Unknown depth format %u", format);
-            UNIMPLEMENTED();
-        }
-    }
-
-    // Returns the number of bits per depth component of the specified depth format
-    static u32 DepthBitsPerPixel(DepthFormat format) {
-        switch (format) {
-        case DepthFormat::D16:
-            return 16;
-        case DepthFormat::D24:
-        case DepthFormat::D24S8:
-            return 24;
-        default:
-            LOG_CRITICAL(HW_GPU, "Unknown depth format %u", format);
-            UNIMPLEMENTED();
-        }
-    }
-
-    INSERT_PADDING_WORDS(0x20);
 
     enum class LightingSampler {
         Distribution0 = 0,
@@ -957,8 +697,10 @@ ASSERT_REG_POSITION(texturing.tev_stage4, 0xf0);
 ASSERT_REG_POSITION(texturing.tev_stage5, 0xf8);
 ASSERT_REG_POSITION(texturing.tev_combiner_buffer_color, 0xfd);
 
-ASSERT_REG_POSITION(output_merger, 0x100);
+ASSERT_REG_POSITION(framebuffer, 0x100);
-ASSERT_REG_POSITION(framebuffer, 0x110);
+ASSERT_REG_POSITION(framebuffer.output_merger, 0x100);
+ASSERT_REG_POSITION(framebuffer.framebuffer, 0x110);
+
 ASSERT_REG_POSITION(lighting, 0x140);
 ASSERT_REG_POSITION(vertex_attributes, 0x200);
 ASSERT_REG_POSITION(index_array, 0x227);

src/video_core/rasterizer.cpp

@@ -29,7 +29,7 @@ namespace Pica {
 namespace Rasterizer {
 
 static void DrawPixel(int x, int y, const Math::Vec4<u8>& color) {
-    const auto& framebuffer = g_state.regs.framebuffer;
+    const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
     const PAddr addr = framebuffer.GetColorBufferPhysicalAddress();
 
     // Similarly to textures, the render framebuffer is laid out from bottom to top, too.
@@ -44,23 +44,23 @@ static void DrawPixel(int x, int y, const Math::Vec4<u8>& color) {
     u8* dst_pixel = Memory::GetPhysicalPointer(addr) + dst_offset;
 
     switch (framebuffer.color_format) {
-    case Regs::ColorFormat::RGBA8:
+    case FramebufferRegs::ColorFormat::RGBA8:
         Color::EncodeRGBA8(color, dst_pixel);
         break;
 
-    case Regs::ColorFormat::RGB8:
+    case FramebufferRegs::ColorFormat::RGB8:
         Color::EncodeRGB8(color, dst_pixel);
         break;
 
-    case Regs::ColorFormat::RGB5A1:
+    case FramebufferRegs::ColorFormat::RGB5A1:
         Color::EncodeRGB5A1(color, dst_pixel);
         break;
 
-    case Regs::ColorFormat::RGB565:
+    case FramebufferRegs::ColorFormat::RGB565:
         Color::EncodeRGB565(color, dst_pixel);
         break;
 
-    case Regs::ColorFormat::RGBA4:
+    case FramebufferRegs::ColorFormat::RGBA4:
         Color::EncodeRGBA4(color, dst_pixel);
         break;
 
@@ -72,7 +72,7 @@ static void DrawPixel(int x, int y, const Math::Vec4<u8>& color) {
 }
 
 static const Math::Vec4<u8> GetPixel(int x, int y) {
-    const auto& framebuffer = g_state.regs.framebuffer;
+    const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
     const PAddr addr = framebuffer.GetColorBufferPhysicalAddress();
 
     y = framebuffer.height - y;
@@ -85,19 +85,19 @@ static const Math::Vec4<u8> GetPixel(int x, int y) {
     u8* src_pixel = Memory::GetPhysicalPointer(addr) + src_offset;
 
     switch (framebuffer.color_format) {
-    case Regs::ColorFormat::RGBA8:
+    case FramebufferRegs::ColorFormat::RGBA8:
         return Color::DecodeRGBA8(src_pixel);
 
-    case Regs::ColorFormat::RGB8:
+    case FramebufferRegs::ColorFormat::RGB8:
         return Color::DecodeRGB8(src_pixel);
 
-    case Regs::ColorFormat::RGB5A1:
+    case FramebufferRegs::ColorFormat::RGB5A1:
         return Color::DecodeRGB5A1(src_pixel);
 
-    case Regs::ColorFormat::RGB565:
+    case FramebufferRegs::ColorFormat::RGB565:
         return Color::DecodeRGB565(src_pixel);
 
-    case Regs::ColorFormat::RGBA4:
+    case FramebufferRegs::ColorFormat::RGBA4:
         return Color::DecodeRGBA4(src_pixel);
 
     default:
@@ -110,25 +110,25 @@ static const Math::Vec4<u8> GetPixel(int x, int y) {
 }
 
 static u32 GetDepth(int x, int y) {
-    const auto& framebuffer = g_state.regs.framebuffer;
+    const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
     const PAddr addr = framebuffer.GetDepthBufferPhysicalAddress();
     u8* depth_buffer = Memory::GetPhysicalPointer(addr);
 
     y = framebuffer.height - y;
 
     const u32 coarse_y = y & ~7;
-    u32 bytes_per_pixel = Regs::BytesPerDepthPixel(framebuffer.depth_format);
+    u32 bytes_per_pixel = FramebufferRegs::BytesPerDepthPixel(framebuffer.depth_format);
     u32 stride = framebuffer.width * bytes_per_pixel;
 
     u32 src_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
     u8* src_pixel = depth_buffer + src_offset;
 
     switch (framebuffer.depth_format) {
-    case Regs::DepthFormat::D16:
+    case FramebufferRegs::DepthFormat::D16:
         return Color::DecodeD16(src_pixel);
-    case Regs::DepthFormat::D24:
+    case FramebufferRegs::DepthFormat::D24:
         return Color::DecodeD24(src_pixel);
-    case Regs::DepthFormat::D24S8:
+    case FramebufferRegs::DepthFormat::D24S8:
         return Color::DecodeD24S8(src_pixel).x;
     default:
         LOG_CRITICAL(HW_GPU, "Unimplemented depth format %u", framebuffer.depth_format);
@@ -138,21 +138,21 @@ static u32 GetDepth(int x, int y) {
 }
 
 static u8 GetStencil(int x, int y) {
-    const auto& framebuffer = g_state.regs.framebuffer;
+    const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
     const PAddr addr = framebuffer.GetDepthBufferPhysicalAddress();
     u8* depth_buffer = Memory::GetPhysicalPointer(addr);
 
     y = framebuffer.height - y;
 
     const u32 coarse_y = y & ~7;
-    u32 bytes_per_pixel = Pica::Regs::BytesPerDepthPixel(framebuffer.depth_format);
+    u32 bytes_per_pixel = Pica::FramebufferRegs::BytesPerDepthPixel(framebuffer.depth_format);
     u32 stride = framebuffer.width * bytes_per_pixel;
 
     u32 src_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
     u8* src_pixel = depth_buffer + src_offset;
 
     switch (framebuffer.depth_format) {
-    case Regs::DepthFormat::D24S8:
+    case FramebufferRegs::DepthFormat::D24S8:
         return Color::DecodeD24S8(src_pixel).y;
 
     default:
@@ -165,29 +165,29 @@ static u8 GetStencil(int x, int y) {
 }
 
 static void SetDepth(int x, int y, u32 value) {
-    const auto& framebuffer = g_state.regs.framebuffer;
+    const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
     const PAddr addr = framebuffer.GetDepthBufferPhysicalAddress();
     u8* depth_buffer = Memory::GetPhysicalPointer(addr);
 
     y = framebuffer.height - y;
 
     const u32 coarse_y = y & ~7;
-    u32 bytes_per_pixel = Regs::BytesPerDepthPixel(framebuffer.depth_format);
+    u32 bytes_per_pixel = FramebufferRegs::BytesPerDepthPixel(framebuffer.depth_format);
     u32 stride = framebuffer.width * bytes_per_pixel;
 
     u32 dst_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
     u8* dst_pixel = depth_buffer + dst_offset;
 
     switch (framebuffer.depth_format) {
-    case Regs::DepthFormat::D16:
+    case FramebufferRegs::DepthFormat::D16:
         Color::EncodeD16(value, dst_pixel);
         break;
 
-    case Regs::DepthFormat::D24:
+    case FramebufferRegs::DepthFormat::D24:
         Color::EncodeD24(value, dst_pixel);
         break;
 
-    case Regs::DepthFormat::D24S8:
+    case FramebufferRegs::DepthFormat::D24S8:
         Color::EncodeD24X8(value, dst_pixel);
         break;
 
@@ -199,26 +199,26 @@ static void SetDepth(int x, int y, u32 value) {
 }
 
 static void SetStencil(int x, int y, u8 value) {
-    const auto& framebuffer = g_state.regs.framebuffer;
+    const auto& framebuffer = g_state.regs.framebuffer.framebuffer;
     const PAddr addr = framebuffer.GetDepthBufferPhysicalAddress();
     u8* depth_buffer = Memory::GetPhysicalPointer(addr);
 
     y = framebuffer.height - y;
 
     const u32 coarse_y = y & ~7;
-    u32 bytes_per_pixel = Pica::Regs::BytesPerDepthPixel(framebuffer.depth_format);
+    u32 bytes_per_pixel = Pica::FramebufferRegs::BytesPerDepthPixel(framebuffer.depth_format);
     u32 stride = framebuffer.width * bytes_per_pixel;
 
     u32 dst_offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
     u8* dst_pixel = depth_buffer + dst_offset;
 
     switch (framebuffer.depth_format) {
-    case Pica::Regs::DepthFormat::D16:
+    case Pica::FramebufferRegs::DepthFormat::D16:
-    case Pica::Regs::DepthFormat::D24:
+    case Pica::FramebufferRegs::DepthFormat::D24:
         // Nothing to do
         break;
 
-    case Pica::Regs::DepthFormat::D24S8:
+    case Pica::FramebufferRegs::DepthFormat::D24S8:
         Color::EncodeX24S8(value, dst_pixel);
         break;
 
@@ -229,32 +229,32 @@ static void SetStencil(int x, int y, u8 value) {
     }
 }
 
-static u8 PerformStencilAction(Regs::StencilAction action, u8 old_stencil, u8 ref) {
+static u8 PerformStencilAction(FramebufferRegs::StencilAction action, u8 old_stencil, u8 ref) {
     switch (action) {
-    case Regs::StencilAction::Keep:
+    case FramebufferRegs::StencilAction::Keep:
         return old_stencil;
 
-    case Regs::StencilAction::Zero:
+    case FramebufferRegs::StencilAction::Zero:
         return 0;
 
-    case Regs::StencilAction::Replace:
+    case FramebufferRegs::StencilAction::Replace:
         return ref;
 
-    case Regs::StencilAction::Increment:
+    case FramebufferRegs::StencilAction::Increment:
         // Saturated increment
         return std::min<u8>(old_stencil, 254) + 1;
 
-    case Regs::StencilAction::Decrement:
+    case FramebufferRegs::StencilAction::Decrement:
         // Saturated decrement
         return std::max<u8>(old_stencil, 1) - 1;
 
-    case Regs::StencilAction::Invert:
+    case FramebufferRegs::StencilAction::Invert:
         return ~old_stencil;
 
-    case Regs::StencilAction::IncrementWrap:
+    case FramebufferRegs::StencilAction::IncrementWrap:
         return old_stencil + 1;
 
-    case Regs::StencilAction::DecrementWrap:
+    case FramebufferRegs::StencilAction::DecrementWrap:
         return old_stencil - 1;
 
     default:
@@ -400,9 +400,10 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
     auto textures = regs.texturing.GetTextures();
     auto tev_stages = regs.texturing.GetTevStages();
 
-    bool stencil_action_enable = g_state.regs.output_merger.stencil_test.enable &&
+    bool stencil_action_enable =
-                                 g_state.regs.framebuffer.depth_format == Regs::DepthFormat::D24S8;
+        g_state.regs.framebuffer.output_merger.stencil_test.enable &&
-    const auto stencil_test = g_state.regs.output_merger.stencil_test;
+        g_state.regs.framebuffer.framebuffer.depth_format == FramebufferRegs::DepthFormat::D24S8;
+    const auto stencil_test = g_state.regs.framebuffer.output_merger.stencil_test;
 
     // Enter rasterization loop, starting at the center of the topleft bounding box corner.
     // TODO: Not sure if looping through x first might be faster
@@ -879,41 +880,41 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
                 }
             }
 
-            const auto& output_merger = regs.output_merger;
+            const auto& output_merger = regs.framebuffer.output_merger;
             // TODO: Does alpha testing happen before or after stencil?
             if (output_merger.alpha_test.enable) {
                 bool pass = false;
 
                 switch (output_merger.alpha_test.func) {
-                case Regs::CompareFunc::Never:
+                case FramebufferRegs::CompareFunc::Never:
                     pass = false;
                     break;
 
-                case Regs::CompareFunc::Always:
+                case FramebufferRegs::CompareFunc::Always:
                     pass = true;
                     break;
 
-                case Regs::CompareFunc::Equal:
+                case FramebufferRegs::CompareFunc::Equal:
                     pass = combiner_output.a() == output_merger.alpha_test.ref;
                     break;
 
-                case Regs::CompareFunc::NotEqual:
+                case FramebufferRegs::CompareFunc::NotEqual:
                     pass = combiner_output.a() != output_merger.alpha_test.ref;
                     break;
 
-                case Regs::CompareFunc::LessThan:
+                case FramebufferRegs::CompareFunc::LessThan:
                     pass = combiner_output.a() < output_merger.alpha_test.ref;
                     break;
 
-                case Regs::CompareFunc::LessThanOrEqual:
+                case FramebufferRegs::CompareFunc::LessThanOrEqual:
                     pass = combiner_output.a() <= output_merger.alpha_test.ref;
                     break;
 
-                case Regs::CompareFunc::GreaterThan:
+                case FramebufferRegs::CompareFunc::GreaterThan:
                     pass = combiner_output.a() > output_merger.alpha_test.ref;
                     break;
 
-                case Regs::CompareFunc::GreaterThanOrEqual:
+                case FramebufferRegs::CompareFunc::GreaterThanOrEqual:
                     pass = combiner_output.a() >= output_merger.alpha_test.ref;
                     break;
                 }
@@ -959,10 +960,10 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
             u8 old_stencil = 0;
 
             auto UpdateStencil = [stencil_test, x, y,
-                                  &old_stencil](Pica::Regs::StencilAction action) {
+                                  &old_stencil](Pica::FramebufferRegs::StencilAction action) {
                 u8 new_stencil =
                     PerformStencilAction(action, old_stencil, stencil_test.reference_value);
-                if (g_state.regs.framebuffer.allow_depth_stencil_write != 0)
+                if (g_state.regs.framebuffer.framebuffer.allow_depth_stencil_write != 0)
                     SetStencil(x >> 4, y >> 4, (new_stencil & stencil_test.write_mask) |
                                                    (old_stencil & ~stencil_test.write_mask));
             };
@@ -974,35 +975,35 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
 
                 bool pass = false;
                 switch (stencil_test.func) {
-                case Regs::CompareFunc::Never:
+                case FramebufferRegs::CompareFunc::Never:
                     pass = false;
                     break;
 
-                case Regs::CompareFunc::Always:
+                case FramebufferRegs::CompareFunc::Always:
                     pass = true;
                     break;
 
-                case Regs::CompareFunc::Equal:
+                case FramebufferRegs::CompareFunc::Equal:
                     pass = (ref == dest);
                     break;
 
-                case Regs::CompareFunc::NotEqual:
+                case FramebufferRegs::CompareFunc::NotEqual:
                     pass = (ref != dest);
                     break;
 
-                case Regs::CompareFunc::LessThan:
+                case FramebufferRegs::CompareFunc::LessThan:
                     pass = (ref < dest);
                     break;
 
-                case Regs::CompareFunc::LessThanOrEqual:
+                case FramebufferRegs::CompareFunc::LessThanOrEqual:
                     pass = (ref <= dest);
                     break;
 
-                case Regs::CompareFunc::GreaterThan:
+                case FramebufferRegs::CompareFunc::GreaterThan:
                     pass = (ref > dest);
                     break;
 
-                case Regs::CompareFunc::GreaterThanOrEqual:
+                case FramebufferRegs::CompareFunc::GreaterThanOrEqual:
                     pass = (ref >= dest);
                     break;
                 }
@@ -1014,7 +1015,8 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
             }
 
             // Convert float to integer
-            unsigned num_bits = Regs::DepthBitsPerPixel(regs.framebuffer.depth_format);
+            unsigned num_bits =
+                FramebufferRegs::DepthBitsPerPixel(regs.framebuffer.framebuffer.depth_format);
             u32 z = (u32)(depth * ((1 << num_bits) - 1));
 
             if (output_merger.depth_test_enable) {
@@ -1023,35 +1025,35 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
                 bool pass = false;
 
                 switch (output_merger.depth_test_func) {
-                case Regs::CompareFunc::Never:
+                case FramebufferRegs::CompareFunc::Never:
                     pass = false;
                     break;
 
-                case Regs::CompareFunc::Always:
+                case FramebufferRegs::CompareFunc::Always:
                     pass = true;
                     break;
 
-                case Regs::CompareFunc::Equal:
+                case FramebufferRegs::CompareFunc::Equal:
                     pass = z == ref_z;
                     break;
 
-                case Regs::CompareFunc::NotEqual:
+                case FramebufferRegs::CompareFunc::NotEqual:
                     pass = z != ref_z;
                     break;
 
-                case Regs::CompareFunc::LessThan:
+                case FramebufferRegs::CompareFunc::LessThan:
                     pass = z < ref_z;
                     break;
 
-                case Regs::CompareFunc::LessThanOrEqual:
+                case FramebufferRegs::CompareFunc::LessThanOrEqual:
                     pass = z <= ref_z;
                     break;
 
-                case Regs::CompareFunc::GreaterThan:
+                case FramebufferRegs::CompareFunc::GreaterThan:
                     pass = z > ref_z;
                     break;
 
-                case Regs::CompareFunc::GreaterThanOrEqual:
+                case FramebufferRegs::CompareFunc::GreaterThanOrEqual:
                     pass = z >= ref_z;
                     break;
                 }
@@ -1063,8 +1065,11 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
                 }
             }
 
-            if (regs.framebuffer.allow_depth_stencil_write != 0 && output_merger.depth_write_enable)
+            if (regs.framebuffer.framebuffer.allow_depth_stencil_write != 0 &&
+                output_merger.depth_write_enable) {
+
                 SetDepth(x >> 4, y >> 4, z);
+            }
 
             // The stencil depth_pass action is executed even if depth testing is disabled
             if (stencil_action_enable)
@@ -1076,7 +1081,8 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
             if (output_merger.alphablend_enable) {
                 auto params = output_merger.alpha_blending;
 
-                auto LookupFactor = [&](unsigned channel, Regs::BlendFactor factor) -> u8 {
+                auto LookupFactor = [&](unsigned channel,
+                                        FramebufferRegs::BlendFactor factor) -> u8 {
                     DEBUG_ASSERT(channel < 4);
 
                     const Math::Vec4<u8> blend_const = {
@@ -1087,49 +1093,49 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
                     };
 
                     switch (factor) {
-                    case Regs::BlendFactor::Zero:
+                    case FramebufferRegs::BlendFactor::Zero:
                         return 0;
 
-                    case Regs::BlendFactor::One:
+                    case FramebufferRegs::BlendFactor::One:
                         return 255;
 
-                    case Regs::BlendFactor::SourceColor:
+                    case FramebufferRegs::BlendFactor::SourceColor:
                         return combiner_output[channel];
 
-                    case Regs::BlendFactor::OneMinusSourceColor:
+                    case FramebufferRegs::BlendFactor::OneMinusSourceColor:
                         return 255 - combiner_output[channel];
 
-                    case Regs::BlendFactor::DestColor:
+                    case FramebufferRegs::BlendFactor::DestColor:
                         return dest[channel];
 
-                    case Regs::BlendFactor::OneMinusDestColor:
+                    case FramebufferRegs::BlendFactor::OneMinusDestColor:
                         return 255 - dest[channel];
 
-                    case Regs::BlendFactor::SourceAlpha:
+                    case FramebufferRegs::BlendFactor::SourceAlpha:
                         return combiner_output.a();
 
-                    case Regs::BlendFactor::OneMinusSourceAlpha:
+                    case FramebufferRegs::BlendFactor::OneMinusSourceAlpha:
                         return 255 - combiner_output.a();
 
-                    case Regs::BlendFactor::DestAlpha:
+                    case FramebufferRegs::BlendFactor::DestAlpha:
                         return dest.a();
 
-                    case Regs::BlendFactor::OneMinusDestAlpha:
+                    case FramebufferRegs::BlendFactor::OneMinusDestAlpha:
                         return 255 - dest.a();
 
-                    case Regs::BlendFactor::ConstantColor:
+                    case FramebufferRegs::BlendFactor::ConstantColor:
                         return blend_const[channel];
 
-                    case Regs::BlendFactor::OneMinusConstantColor:
+                    case FramebufferRegs::BlendFactor::OneMinusConstantColor:
                         return 255 - blend_const[channel];
 
-                    case Regs::BlendFactor::ConstantAlpha:
+                    case FramebufferRegs::BlendFactor::ConstantAlpha:
                         return blend_const.a();
 
-                    case Regs::BlendFactor::OneMinusConstantAlpha:
+                    case FramebufferRegs::BlendFactor::OneMinusConstantAlpha:
                         return 255 - blend_const.a();
 
-                    case Regs::BlendFactor::SourceAlphaSaturate:
+                    case FramebufferRegs::BlendFactor::SourceAlphaSaturate:
                         // Returns 1.0 for the alpha channel
                         if (channel == 3)
                             return 255;
@@ -1147,36 +1153,37 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
                 static auto EvaluateBlendEquation = [](
                     const Math::Vec4<u8>& src, const Math::Vec4<u8>& srcfactor,
                     const Math::Vec4<u8>& dest, const Math::Vec4<u8>& destfactor,
-                    Regs::BlendEquation equation) {
+                    FramebufferRegs::BlendEquation equation) {
+
                     Math::Vec4<int> result;
 
                     auto src_result = (src * srcfactor).Cast<int>();
                     auto dst_result = (dest * destfactor).Cast<int>();
 
                     switch (equation) {
-                    case Regs::BlendEquation::Add:
+                    case FramebufferRegs::BlendEquation::Add:
                         result = (src_result + dst_result) / 255;
                         break;
 
-                    case Regs::BlendEquation::Subtract:
+                    case FramebufferRegs::BlendEquation::Subtract:
                         result = (src_result - dst_result) / 255;
                         break;
 
-                    case Regs::BlendEquation::ReverseSubtract:
+                    case FramebufferRegs::BlendEquation::ReverseSubtract:
                         result = (dst_result - src_result) / 255;
                         break;
 
                     // TODO: How do these two actually work?
                     //       OpenGL doesn't include the blend factors in the min/max computations,
                     //       but is this what the 3DS actually does?
-                    case Regs::BlendEquation::Min:
+                    case FramebufferRegs::BlendEquation::Min:
                         result.r() = std::min(src.r(), dest.r());
                         result.g() = std::min(src.g(), dest.g());
                         result.b() = std::min(src.b(), dest.b());
                         result.a() = std::min(src.a(), dest.a());
                         break;
 
-                    case Regs::BlendEquation::Max:
+                    case FramebufferRegs::BlendEquation::Max:
                         result.r() = std::max(src.r(), dest.r());
                         result.g() = std::max(src.g(), dest.g());
                         result.b() = std::max(src.b(), dest.b());
@@ -1209,54 +1216,54 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
                                                          dstfactor, params.blend_equation_a)
                                        .a();
             } else {
-                static auto LogicOp = [](u8 src, u8 dest, Regs::LogicOp op) -> u8 {
+                static auto LogicOp = [](u8 src, u8 dest, FramebufferRegs::LogicOp op) -> u8 {
                     switch (op) {
-                    case Regs::LogicOp::Clear:
+                    case FramebufferRegs::LogicOp::Clear:
                         return 0;
 
-                    case Regs::LogicOp::And:
+                    case FramebufferRegs::LogicOp::And:
                         return src & dest;
 
-                    case Regs::LogicOp::AndReverse:
+                    case FramebufferRegs::LogicOp::AndReverse:
                         return src & ~dest;
 
-                    case Regs::LogicOp::Copy:
+                    case FramebufferRegs::LogicOp::Copy:
                         return src;
 
-                    case Regs::LogicOp::Set:
+                    case FramebufferRegs::LogicOp::Set:
                         return 255;
 
-                    case Regs::LogicOp::CopyInverted:
+                    case FramebufferRegs::LogicOp::CopyInverted:
                         return ~src;
 
-                    case Regs::LogicOp::NoOp:
+                    case FramebufferRegs::LogicOp::NoOp:
                         return dest;
 
-                    case Regs::LogicOp::Invert:
+                    case FramebufferRegs::LogicOp::Invert:
                         return ~dest;
 
-                    case Regs::LogicOp::Nand:
+                    case FramebufferRegs::LogicOp::Nand:
                         return ~(src & dest);
 
-                    case Regs::LogicOp::Or:
+                    case FramebufferRegs::LogicOp::Or:
                         return src | dest;
 
-                    case Regs::LogicOp::Nor:
+                    case FramebufferRegs::LogicOp::Nor:
                         return ~(src | dest);
 
-                    case Regs::LogicOp::Xor:
+                    case FramebufferRegs::LogicOp::Xor:
                         return src ^ dest;
 
-                    case Regs::LogicOp::Equiv:
+                    case FramebufferRegs::LogicOp::Equiv:
                         return ~(src ^ dest);
 
-                    case Regs::LogicOp::AndInverted:
+                    case FramebufferRegs::LogicOp::AndInverted:
                         return ~src & dest;
 
-                    case Regs::LogicOp::OrReverse:
+                    case FramebufferRegs::LogicOp::OrReverse:
                         return src | ~dest;
 
-                    case Regs::LogicOp::OrInverted:
+                    case FramebufferRegs::LogicOp::OrInverted:
                         return ~src | dest;
                     }
                 };
@@ -1275,7 +1282,7 @@ static void ProcessTriangleInternal(const Vertex& v0, const Vertex& v1, const Ve
                 output_merger.alpha_enable ? blend_output.a() : dest.a(),
             };
 
-            if (regs.framebuffer.allow_color_write != 0)
+            if (regs.framebuffer.framebuffer.allow_color_write != 0)
                 DrawPixel(x >> 4, y >> 4, result);
         }
     }

src/video_core/regs_framebuffer.h

@@ -0,0 +1,282 @@
+// 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 FramebufferRegs {
+    enum class LogicOp : u32 {
+        Clear = 0,
+        And = 1,
+        AndReverse = 2,
+        Copy = 3,
+        Set = 4,
+        CopyInverted = 5,
+        NoOp = 6,
+        Invert = 7,
+        Nand = 8,
+        Or = 9,
+        Nor = 10,
+        Xor = 11,
+        Equiv = 12,
+        AndInverted = 13,
+        OrReverse = 14,
+        OrInverted = 15,
+    };
+
+    enum class BlendEquation : u32 {
+        Add = 0,
+        Subtract = 1,
+        ReverseSubtract = 2,
+        Min = 3,
+        Max = 4,
+    };
+
+    enum class BlendFactor : u32 {
+        Zero = 0,
+        One = 1,
+        SourceColor = 2,
+        OneMinusSourceColor = 3,
+        DestColor = 4,
+        OneMinusDestColor = 5,
+        SourceAlpha = 6,
+        OneMinusSourceAlpha = 7,
+        DestAlpha = 8,
+        OneMinusDestAlpha = 9,
+        ConstantColor = 10,
+        OneMinusConstantColor = 11,
+        ConstantAlpha = 12,
+        OneMinusConstantAlpha = 13,
+        SourceAlphaSaturate = 14,
+    };
+
+    enum class CompareFunc : u32 {
+        Never = 0,
+        Always = 1,
+        Equal = 2,
+        NotEqual = 3,
+        LessThan = 4,
+        LessThanOrEqual = 5,
+        GreaterThan = 6,
+        GreaterThanOrEqual = 7,
+    };
+
+    enum class StencilAction : u32 {
+        Keep = 0,
+        Zero = 1,
+        Replace = 2,
+        Increment = 3,
+        Decrement = 4,
+        Invert = 5,
+        IncrementWrap = 6,
+        DecrementWrap = 7,
+    };
+
+    struct {
+        union {
+            // If false, logic blending is used
+            BitField<8, 1, u32> alphablend_enable;
+        };
+
+        union {
+            BitField<0, 8, BlendEquation> blend_equation_rgb;
+            BitField<8, 8, BlendEquation> blend_equation_a;
+
+            BitField<16, 4, BlendFactor> factor_source_rgb;
+            BitField<20, 4, BlendFactor> factor_dest_rgb;
+
+            BitField<24, 4, BlendFactor> factor_source_a;
+            BitField<28, 4, BlendFactor> factor_dest_a;
+        } alpha_blending;
+
+        union {
+            BitField<0, 4, LogicOp> logic_op;
+        };
+
+        union {
+            u32 raw;
+            BitField<0, 8, u32> r;
+            BitField<8, 8, u32> g;
+            BitField<16, 8, u32> b;
+            BitField<24, 8, u32> a;
+        } blend_const;
+
+        union {
+            BitField<0, 1, u32> enable;
+            BitField<4, 3, CompareFunc> func;
+            BitField<8, 8, u32> ref;
+        } alpha_test;
+
+        struct {
+            union {
+                // Raw value of this register
+                u32 raw_func;
+
+                // If true, enable stencil testing
+                BitField<0, 1, u32> enable;
+
+                // Comparison operation for stencil testing
+                BitField<4, 3, CompareFunc> func;
+
+                // Mask used to control writing to the stencil buffer
+                BitField<8, 8, u32> write_mask;
+
+                // Value to compare against for stencil testing
+                BitField<16, 8, u32> reference_value;
+
+                // Mask to apply on stencil test inputs
+                BitField<24, 8, u32> input_mask;
+            };
+
+            union {
+                // Raw value of this register
+                u32 raw_op;
+
+                // Action to perform when the stencil test fails
+                BitField<0, 3, StencilAction> action_stencil_fail;
+
+                // Action to perform when stencil testing passed but depth testing fails
+                BitField<4, 3, StencilAction> action_depth_fail;
+
+                // Action to perform when both stencil and depth testing pass
+                BitField<8, 3, StencilAction> action_depth_pass;
+            };
+        } stencil_test;
+
+        union {
+            BitField<0, 1, u32> depth_test_enable;
+            BitField<4, 3, CompareFunc> depth_test_func;
+            BitField<8, 1, u32> red_enable;
+            BitField<9, 1, u32> green_enable;
+            BitField<10, 1, u32> blue_enable;
+            BitField<11, 1, u32> alpha_enable;
+            BitField<12, 1, u32> depth_write_enable;
+        };
+
+        INSERT_PADDING_WORDS(0x8);
+    } output_merger;
+
+    // Components are laid out in reverse byte order, most significant bits first.
+    enum class ColorFormat : u32 {
+        RGBA8 = 0,
+        RGB8 = 1,
+        RGB5A1 = 2,
+        RGB565 = 3,
+        RGBA4 = 4,
+    };
+
+    enum class DepthFormat : u32 {
+        D16 = 0,
+        D24 = 2,
+        D24S8 = 3,
+    };
+
+    // Returns the number of bytes in the specified color format
+    static unsigned BytesPerColorPixel(ColorFormat format) {
+        switch (format) {
+        case ColorFormat::RGBA8:
+            return 4;
+        case ColorFormat::RGB8:
+            return 3;
+        case ColorFormat::RGB5A1:
+        case ColorFormat::RGB565:
+        case ColorFormat::RGBA4:
+            return 2;
+        default:
+            LOG_CRITICAL(HW_GPU, "Unknown color format %u", format);
+            UNIMPLEMENTED();
+        }
+    }
+
+    struct FramebufferConfig {
+        INSERT_PADDING_WORDS(0x3);
+
+        union {
+            BitField<0, 4, u32> allow_color_write; // 0 = disable, else enable
+        };
+
+        INSERT_PADDING_WORDS(0x1);
+
+        union {
+            BitField<0, 2, u32> allow_depth_stencil_write; // 0 = disable, else enable
+        };
+
+        DepthFormat depth_format; // TODO: Should be a BitField!
+        BitField<16, 3, ColorFormat> color_format;
+
+        INSERT_PADDING_WORDS(0x4);
+
+        u32 depth_buffer_address;
+        u32 color_buffer_address;
+
+        union {
+            // Apparently, the framebuffer width is stored as expected,
+            // while the height is stored as the actual height minus one.
+            // Hence, don't access these fields directly but use the accessors
+            // GetWidth() and GetHeight() instead.
+            BitField<0, 11, u32> width;
+            BitField<12, 10, u32> height;
+        };
+
+        INSERT_PADDING_WORDS(0x1);
+
+        inline PAddr GetColorBufferPhysicalAddress() const {
+            return color_buffer_address * 8;
+        }
+        inline PAddr GetDepthBufferPhysicalAddress() const {
+            return depth_buffer_address * 8;
+        }
+
+        inline u32 GetWidth() const {
+            return width;
+        }
+
+        inline u32 GetHeight() const {
+            return height + 1;
+        }
+    } framebuffer;
+
+    // Returns the number of bytes in the specified depth format
+    static u32 BytesPerDepthPixel(DepthFormat format) {
+        switch (format) {
+        case DepthFormat::D16:
+            return 2;
+        case DepthFormat::D24:
+            return 3;
+        case DepthFormat::D24S8:
+            return 4;
+        default:
+            LOG_CRITICAL(HW_GPU, "Unknown depth format %u", format);
+            UNIMPLEMENTED();
+        }
+    }
+
+    // Returns the number of bits per depth component of the specified depth format
+    static u32 DepthBitsPerPixel(DepthFormat format) {
+        switch (format) {
+        case DepthFormat::D16:
+            return 16;
+        case DepthFormat::D24:
+        case DepthFormat::D24S8:
+            return 24;
+        default:
+            LOG_CRITICAL(HW_GPU, "Unknown depth format %u", format);
+            UNIMPLEMENTED();
+        }
+    }
+
+    INSERT_PADDING_WORDS(0x20);
+};
+
+static_assert(sizeof(FramebufferRegs) == 0x40 * sizeof(u32),
+              "FramebufferRegs struct has incorrect size");
+
+} // namespace Pica

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -183,7 +183,7 @@ void RasterizerOpenGL::DrawTriangles() {
     CachedSurface* depth_surface;
     MathUtil::Rectangle<int> rect;
     std::tie(color_surface, depth_surface, rect) =
-        res_cache.GetFramebufferSurfaces(regs.framebuffer);
+        res_cache.GetFramebufferSurfaces(regs.framebuffer.framebuffer);
 
     state.draw.draw_framebuffer = framebuffer.handle;
     state.Apply();
@@ -192,7 +192,8 @@ void RasterizerOpenGL::DrawTriangles() {
                            color_surface != nullptr ? color_surface->texture.handle : 0, 0);
     glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D,
                            depth_surface != nullptr ? depth_surface->texture.handle : 0, 0);
-    bool has_stencil = regs.framebuffer.depth_format == Pica::Regs::DepthFormat::D24S8;
+    bool has_stencil =
+        regs.framebuffer.framebuffer.depth_format == Pica::FramebufferRegs::DepthFormat::D24S8;
     glFramebufferTexture2D(
         GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D,
         (has_stencil && depth_surface != nullptr) ? depth_surface->texture.handle : 0, 0);
@@ -339,13 +340,13 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
         break;
 
     // Blending
-    case PICA_REG_INDEX(output_merger.alphablend_enable):
+    case PICA_REG_INDEX(framebuffer.output_merger.alphablend_enable):
         SyncBlendEnabled();
         break;
-    case PICA_REG_INDEX(output_merger.alpha_blending):
+    case PICA_REG_INDEX(framebuffer.output_merger.alpha_blending):
         SyncBlendFuncs();
         break;
-    case PICA_REG_INDEX(output_merger.blend_const):
+    case PICA_REG_INDEX(framebuffer.output_merger.blend_const):
         SyncBlendColor();
         break;
 
@@ -365,25 +366,25 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
         break;
 
     // Alpha test
-    case PICA_REG_INDEX(output_merger.alpha_test):
+    case PICA_REG_INDEX(framebuffer.output_merger.alpha_test):
         SyncAlphaTest();
         shader_dirty = true;
         break;
 
     // Sync GL stencil test + stencil write mask
     // (Pica stencil test function register also contains a stencil write mask)
-    case PICA_REG_INDEX(output_merger.stencil_test.raw_func):
+    case PICA_REG_INDEX(framebuffer.output_merger.stencil_test.raw_func):
         SyncStencilTest();
         SyncStencilWriteMask();
         break;
-    case PICA_REG_INDEX(output_merger.stencil_test.raw_op):
+    case PICA_REG_INDEX(framebuffer.output_merger.stencil_test.raw_op):
-    case PICA_REG_INDEX(framebuffer.depth_format):
+    case PICA_REG_INDEX(framebuffer.framebuffer.depth_format):
         SyncStencilTest();
         break;
 
     // Sync GL depth test + depth and color write mask
     // (Pica depth test function register also contains a depth and color write mask)
-    case PICA_REG_INDEX(output_merger.depth_test_enable):
+    case PICA_REG_INDEX(framebuffer.output_merger.depth_test_enable):
         SyncDepthTest();
         SyncDepthWriteMask();
         SyncColorWriteMask();
@@ -391,14 +392,14 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
 
     // Sync GL depth and stencil write mask
     // (This is a dedicated combined depth / stencil write-enable register)
-    case PICA_REG_INDEX(framebuffer.allow_depth_stencil_write):
+    case PICA_REG_INDEX(framebuffer.framebuffer.allow_depth_stencil_write):
         SyncDepthWriteMask();
         SyncStencilWriteMask();
         break;
 
     // Sync GL color write mask
     // (This is a dedicated color write-enable register)
-    case PICA_REG_INDEX(framebuffer.allow_color_write):
+    case PICA_REG_INDEX(framebuffer.framebuffer.allow_color_write):
         SyncColorWriteMask();
         break;
 
@@ -408,7 +409,7 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
         break;
 
     // Logic op
-    case PICA_REG_INDEX(output_merger.logic_op):
+    case PICA_REG_INDEX(framebuffer.output_merger.logic_op):
         SyncLogicOp();
         break;
 
@@ -1158,25 +1159,28 @@ void RasterizerOpenGL::SyncDepthOffset() {
 }
 
 void RasterizerOpenGL::SyncBlendEnabled() {
-    state.blend.enabled = (Pica::g_state.regs.output_merger.alphablend_enable == 1);
+    state.blend.enabled = (Pica::g_state.regs.framebuffer.output_merger.alphablend_enable == 1);
 }
 
 void RasterizerOpenGL::SyncBlendFuncs() {
     const auto& regs = Pica::g_state.regs;
     state.blend.rgb_equation =
-        PicaToGL::BlendEquation(regs.output_merger.alpha_blending.blend_equation_rgb);
+        PicaToGL::BlendEquation(regs.framebuffer.output_merger.alpha_blending.blend_equation_rgb);
     state.blend.a_equation =
-        PicaToGL::BlendEquation(regs.output_merger.alpha_blending.blend_equation_a);
+        PicaToGL::BlendEquation(regs.framebuffer.output_merger.alpha_blending.blend_equation_a);
     state.blend.src_rgb_func =
-        PicaToGL::BlendFunc(regs.output_merger.alpha_blending.factor_source_rgb);
+        PicaToGL::BlendFunc(regs.framebuffer.output_merger.alpha_blending.factor_source_rgb);
     state.blend.dst_rgb_func =
-        PicaToGL::BlendFunc(regs.output_merger.alpha_blending.factor_dest_rgb);
+        PicaToGL::BlendFunc(regs.framebuffer.output_merger.alpha_blending.factor_dest_rgb);
-    state.blend.src_a_func = PicaToGL::BlendFunc(regs.output_merger.alpha_blending.factor_source_a);
+    state.blend.src_a_func =
-    state.blend.dst_a_func = PicaToGL::BlendFunc(regs.output_merger.alpha_blending.factor_dest_a);
+        PicaToGL::BlendFunc(regs.framebuffer.output_merger.alpha_blending.factor_source_a);
+    state.blend.dst_a_func =
+        PicaToGL::BlendFunc(regs.framebuffer.output_merger.alpha_blending.factor_dest_a);
 }
 
 void RasterizerOpenGL::SyncBlendColor() {
-    auto blend_color = PicaToGL::ColorRGBA8(Pica::g_state.regs.output_merger.blend_const.raw);
+    auto blend_color =
+        PicaToGL::ColorRGBA8(Pica::g_state.regs.framebuffer.output_merger.blend_const.raw);
     state.blend.color.red = blend_color[0];
     state.blend.color.green = blend_color[1];
     state.blend.color.blue = blend_color[2];
@@ -1208,66 +1212,73 @@ void RasterizerOpenGL::SyncFogLUT() {
 
 void RasterizerOpenGL::SyncAlphaTest() {
     const auto& regs = Pica::g_state.regs;
-    if (regs.output_merger.alpha_test.ref != uniform_block_data.data.alphatest_ref) {
+    if (regs.framebuffer.output_merger.alpha_test.ref != uniform_block_data.data.alphatest_ref) {
-        uniform_block_data.data.alphatest_ref = regs.output_merger.alpha_test.ref;
+        uniform_block_data.data.alphatest_ref = regs.framebuffer.output_merger.alpha_test.ref;
         uniform_block_data.dirty = true;
     }
 }
 
 void RasterizerOpenGL::SyncLogicOp() {
-    state.logic_op = PicaToGL::LogicOp(Pica::g_state.regs.output_merger.logic_op);
+    state.logic_op = PicaToGL::LogicOp(Pica::g_state.regs.framebuffer.output_merger.logic_op);
 }
 
 void RasterizerOpenGL::SyncColorWriteMask() {
     const auto& regs = Pica::g_state.regs;
 
     auto IsColorWriteEnabled = [&](u32 value) {
-        return (regs.framebuffer.allow_color_write != 0 && value != 0) ? GL_TRUE : GL_FALSE;
+        return (regs.framebuffer.framebuffer.allow_color_write != 0 && value != 0) ? GL_TRUE
+                                                                                   : GL_FALSE;
     };
 
-    state.color_mask.red_enabled = IsColorWriteEnabled(regs.output_merger.red_enable);
+    state.color_mask.red_enabled = IsColorWriteEnabled(regs.framebuffer.output_merger.red_enable);
-    state.color_mask.green_enabled = IsColorWriteEnabled(regs.output_merger.green_enable);
+    state.color_mask.green_enabled =
-    state.color_mask.blue_enabled = IsColorWriteEnabled(regs.output_merger.blue_enable);
+        IsColorWriteEnabled(regs.framebuffer.output_merger.green_enable);
-    state.color_mask.alpha_enabled = IsColorWriteEnabled(regs.output_merger.alpha_enable);
+    state.color_mask.blue_enabled = IsColorWriteEnabled(regs.framebuffer.output_merger.blue_enable);
+    state.color_mask.alpha_enabled =
+        IsColorWriteEnabled(regs.framebuffer.output_merger.alpha_enable);
 }
 
 void RasterizerOpenGL::SyncStencilWriteMask() {
     const auto& regs = Pica::g_state.regs;
-    state.stencil.write_mask = (regs.framebuffer.allow_depth_stencil_write != 0)
+    state.stencil.write_mask =
-                                   ? static_cast<GLuint>(regs.output_merger.stencil_test.write_mask)
+        (regs.framebuffer.framebuffer.allow_depth_stencil_write != 0)
-                                   : 0;
+            ? static_cast<GLuint>(regs.framebuffer.output_merger.stencil_test.write_mask)
+            : 0;
 }
 
 void RasterizerOpenGL::SyncDepthWriteMask() {
     const auto& regs = Pica::g_state.regs;
-    state.depth.write_mask =
+    state.depth.write_mask = (regs.framebuffer.framebuffer.allow_depth_stencil_write != 0 &&
-        (regs.framebuffer.allow_depth_stencil_write != 0 && regs.output_merger.depth_write_enable)
+                              regs.framebuffer.output_merger.depth_write_enable)
-            ? GL_TRUE
+                                 ? GL_TRUE
-            : GL_FALSE;
+                                 : GL_FALSE;
 }
 
 void RasterizerOpenGL::SyncStencilTest() {
     const auto& regs = Pica::g_state.regs;
-    state.stencil.test_enabled = regs.output_merger.stencil_test.enable &&
+    state.stencil.test_enabled =
-                                 regs.framebuffer.depth_format == Pica::Regs::DepthFormat::D24S8;
+        regs.framebuffer.output_merger.stencil_test.enable &&
-    state.stencil.test_func = PicaToGL::CompareFunc(regs.output_merger.stencil_test.func);
+        regs.framebuffer.framebuffer.depth_format == Pica::FramebufferRegs::DepthFormat::D24S8;
-    state.stencil.test_ref = regs.output_merger.stencil_test.reference_value;
+    state.stencil.test_func =
-    state.stencil.test_mask = regs.output_merger.stencil_test.input_mask;
+        PicaToGL::CompareFunc(regs.framebuffer.output_merger.stencil_test.func);
+    state.stencil.test_ref = regs.framebuffer.output_merger.stencil_test.reference_value;
+    state.stencil.test_mask = regs.framebuffer.output_merger.stencil_test.input_mask;
     state.stencil.action_stencil_fail =
-        PicaToGL::StencilOp(regs.output_merger.stencil_test.action_stencil_fail);
+        PicaToGL::StencilOp(regs.framebuffer.output_merger.stencil_test.action_stencil_fail);
     state.stencil.action_depth_fail =
-        PicaToGL::StencilOp(regs.output_merger.stencil_test.action_depth_fail);
+        PicaToGL::StencilOp(regs.framebuffer.output_merger.stencil_test.action_depth_fail);
     state.stencil.action_depth_pass =
-        PicaToGL::StencilOp(regs.output_merger.stencil_test.action_depth_pass);
+        PicaToGL::StencilOp(regs.framebuffer.output_merger.stencil_test.action_depth_pass);
 }
 
 void RasterizerOpenGL::SyncDepthTest() {
     const auto& regs = Pica::g_state.regs;
-    state.depth.test_enabled =
+    state.depth.test_enabled = regs.framebuffer.output_merger.depth_test_enable == 1 ||
-        regs.output_merger.depth_test_enable == 1 || regs.output_merger.depth_write_enable == 1;
+                               regs.framebuffer.output_merger.depth_write_enable == 1;
-    state.depth.test_func = regs.output_merger.depth_test_enable == 1
+    state.depth.test_func =
-                                ? PicaToGL::CompareFunc(regs.output_merger.depth_test_func)
+        regs.framebuffer.output_merger.depth_test_enable == 1
-                                : GL_ALWAYS;
+            ? PicaToGL::CompareFunc(regs.framebuffer.output_merger.depth_test_func)
+            : GL_ALWAYS;
 }
 
 void RasterizerOpenGL::SyncCombinerColor() {

src/video_core/renderer_opengl/gl_rasterizer.h

@@ -56,9 +56,9 @@ union PicaShaderConfig {
 
         state.depthmap_enable = regs.rasterizer.depthmap_enable;
 
-        state.alpha_test_func = regs.output_merger.alpha_test.enable
+        state.alpha_test_func = regs.framebuffer.output_merger.alpha_test.enable
-                                    ? regs.output_merger.alpha_test.func.Value()
+                                    ? regs.framebuffer.output_merger.alpha_test.func.Value()
-                                    : Pica::Regs::CompareFunc::Always;
+                                    : Pica::FramebufferRegs::CompareFunc::Always;
 
         state.texture0_type = regs.texturing.texture0.type;
 
@@ -172,7 +172,7 @@ union PicaShaderConfig {
     };
 
     struct State {
-        Pica::Regs::CompareFunc alpha_test_func;
+        Pica::FramebufferRegs::CompareFunc alpha_test_func;
         Pica::RasterizerRegs::ScissorMode scissor_test_mode;
         Pica::TexturingRegs::TextureConfig::TextureType texture0_type;
         std::array<TevStageConfigRaw, 6> tev_stages;

src/video_core/renderer_opengl/gl_rasterizer_cache.cpp

@@ -525,7 +525,9 @@ CachedSurface* RasterizerCacheOpenGL::GetTextureSurface(
 }
 
 std::tuple<CachedSurface*, CachedSurface*, MathUtil::Rectangle<int>>
-RasterizerCacheOpenGL::GetFramebufferSurfaces(const Pica::Regs::FramebufferConfig& config) {
+RasterizerCacheOpenGL::GetFramebufferSurfaces(
+    const Pica::FramebufferRegs::FramebufferConfig& config) {
+
     const auto& regs = Pica::g_state.regs;
 
     // Make sur that framebuffers don't overlap if both color and depth are being used
@@ -537,11 +539,12 @@ RasterizerCacheOpenGL::GetFramebufferSurfaces(const Pica::Regs::FramebufferConfi
             config.GetColorBufferPhysicalAddress(),
             fb_area * GPU::Regs::BytesPerPixel(GPU::Regs::PixelFormat(config.color_format.Value())),
             config.GetDepthBufferPhysicalAddress(),
-            fb_area * Pica::Regs::BytesPerDepthPixel(config.depth_format));
+            fb_area * Pica::FramebufferRegs::BytesPerDepthPixel(config.depth_format));
     bool using_color_fb = config.GetColorBufferPhysicalAddress() != 0;
-    bool using_depth_fb = config.GetDepthBufferPhysicalAddress() != 0 &&
+    bool using_depth_fb =
-                          (regs.output_merger.depth_test_enable ||
+        config.GetDepthBufferPhysicalAddress() != 0 &&
-                           regs.output_merger.depth_write_enable || !framebuffers_overlap);
+        (regs.framebuffer.output_merger.depth_test_enable ||
+         regs.framebuffer.output_merger.depth_write_enable || !framebuffers_overlap);
 
     if (framebuffers_overlap && using_color_fb && using_depth_fb) {
         LOG_CRITICAL(Render_OpenGL, "Color and depth framebuffer memory regions overlap; "

src/video_core/renderer_opengl/gl_rasterizer_cache.h

@@ -100,11 +100,11 @@ struct CachedSurface {
         return ((unsigned int)format < 14) ? (PixelFormat)format : PixelFormat::Invalid;
     }
 
-    static PixelFormat PixelFormatFromColorFormat(Pica::Regs::ColorFormat format) {
+    static PixelFormat PixelFormatFromColorFormat(Pica::FramebufferRegs::ColorFormat format) {
         return ((unsigned int)format < 5) ? (PixelFormat)format : PixelFormat::Invalid;
     }
 
-    static PixelFormat PixelFormatFromDepthFormat(Pica::Regs::DepthFormat format) {
+    static PixelFormat PixelFormatFromDepthFormat(Pica::FramebufferRegs::DepthFormat format) {
         return ((unsigned int)format < 4) ? (PixelFormat)((unsigned int)format + 14)
                                           : PixelFormat::Invalid;
     }
@@ -217,7 +217,7 @@ public:
     /// Gets the color and depth surfaces and rect (resolution scaled) based on the framebuffer
     /// configuration
     std::tuple<CachedSurface*, CachedSurface*, MathUtil::Rectangle<int>> GetFramebufferSurfaces(
-        const Pica::Regs::FramebufferConfig& config);
+        const Pica::FramebufferRegs::FramebufferConfig& config);
 
     /// Attempt to get a surface that exactly matches the fill region and format
     CachedSurface* TryGetFillSurface(const GPU::Regs::MemoryFillConfig& config);

src/video_core/renderer_opengl/gl_shader_gen.cpp

@@ -277,8 +277,8 @@ static void AppendAlphaCombiner(std::string& out, TevStageConfig::Operation oper
 }
 
 /// Writes the if-statement condition used to evaluate alpha testing
-static void AppendAlphaTestCondition(std::string& out, Regs::CompareFunc func) {
+static void AppendAlphaTestCondition(std::string& out, Pica::FramebufferRegs::CompareFunc func) {
-    using CompareFunc = Regs::CompareFunc;
+    using CompareFunc = Pica::FramebufferRegs::CompareFunc;
     switch (func) {
     case CompareFunc::Never:
         out += "true";
@@ -634,7 +634,7 @@ vec4 secondary_fragment_color = vec4(0.0);
 )";
 
     // Do not do any sort of processing if it's obvious we're not going to pass the alpha test
-    if (state.alpha_test_func == Regs::CompareFunc::Never) {
+    if (state.alpha_test_func == Pica::FramebufferRegs::CompareFunc::Never) {
         out += "discard; }";
         return out;
     }
@@ -667,7 +667,7 @@ vec4 secondary_fragment_color = vec4(0.0);
     for (size_t index = 0; index < state.tev_stages.size(); ++index)
         WriteTevStage(out, config, (unsigned)index);
 
-    if (state.alpha_test_func != Regs::CompareFunc::Always) {
+    if (state.alpha_test_func != Pica::FramebufferRegs::CompareFunc::Always) {
         out += "if (";
         AppendAlphaTestCondition(out, state.alpha_test_func);
         out += ") discard;\n";

src/video_core/renderer_opengl/pica_to_gl.h

@@ -76,7 +76,7 @@ inline GLenum WrapMode(Pica::TexturingRegs::TextureConfig::WrapMode mode) {
     return gl_mode;
 }
 
-inline GLenum BlendEquation(Pica::Regs::BlendEquation equation) {
+inline GLenum BlendEquation(Pica::FramebufferRegs::BlendEquation equation) {
     static const GLenum blend_equation_table[] = {
         GL_FUNC_ADD,              // BlendEquation::Add
         GL_FUNC_SUBTRACT,         // BlendEquation::Subtract
@@ -96,7 +96,7 @@ inline GLenum BlendEquation(Pica::Regs::BlendEquation equation) {
     return blend_equation_table[(unsigned)equation];
 }
 
-inline GLenum BlendFunc(Pica::Regs::BlendFactor factor) {
+inline GLenum BlendFunc(Pica::FramebufferRegs::BlendFactor factor) {
     static const GLenum blend_func_table[] = {
         GL_ZERO,                     // BlendFactor::Zero
         GL_ONE,                      // BlendFactor::One
@@ -126,7 +126,7 @@ inline GLenum BlendFunc(Pica::Regs::BlendFactor factor) {
     return blend_func_table[(unsigned)factor];
 }
 
-inline GLenum LogicOp(Pica::Regs::LogicOp op) {
+inline GLenum LogicOp(Pica::FramebufferRegs::LogicOp op) {
     static const GLenum logic_op_table[] = {
         GL_CLEAR,         // Clear
         GL_AND,           // And
@@ -157,7 +157,7 @@ inline GLenum LogicOp(Pica::Regs::LogicOp op) {
     return logic_op_table[(unsigned)op];
 }
 
-inline GLenum CompareFunc(Pica::Regs::CompareFunc func) {
+inline GLenum CompareFunc(Pica::FramebufferRegs::CompareFunc func) {
     static const GLenum compare_func_table[] = {
         GL_NEVER,    // CompareFunc::Never
         GL_ALWAYS,   // CompareFunc::Always
@@ -180,7 +180,7 @@ inline GLenum CompareFunc(Pica::Regs::CompareFunc func) {
     return compare_func_table[(unsigned)func];
 }
 
-inline GLenum StencilOp(Pica::Regs::StencilAction action) {
+inline GLenum StencilOp(Pica::FramebufferRegs::StencilAction action) {
     static const GLenum stencil_op_table[] = {
         GL_KEEP,      // StencilAction::Keep
         GL_ZERO,      // StencilAction::Zero