Integrated to Software Rasterizer

src/common/color.h

@@ -110,6 +110,12 @@ inline const Math::Vec4<u8> DecodeRGBA4(const u8* bytes) {
             Convert4To8((pixel >> 4) & 0xF), Convert4To8(pixel & 0xF)};
 }
 
+// would an specialization but currently, you can't specialize static members.
+inline const Math::Vec4<u8> DecodeTexel(unsigned int rgba) {
+    return {(u8)(rgba & 0x00FF), (u8)((rgba >> 8) & 0x00FF), (u8)((rgba >> 16) & 0x00FF),
+            (u8)((rgba >> 24) & 0x00FF)};
+}
+
 /**
  * Decode a depth value stored in D16 format
  * @param bytes Pointer to encoded source value

src/video_core/rasterizer.cpp

@@ -21,6 +21,8 @@
 #include "video_core/pica_types.h"
 #include "video_core/rasterizer.h"
 #include "video_core/shader/shader.h"
+#include "video_core/texture/codec.h"
+#include "video_core/texture/formats.h"
 #include "video_core/utils.h"
 
 namespace Pica {
@@ -399,6 +401,25 @@ static void ProcessTriangleInternal(const Shader::OutputVertex& v0, const Shader
     auto textures = regs.GetTextures();
     auto tev_stages = regs.GetTevStages();
 
+    std::unique_ptr<u8[]> decoded_textures[3];
+    for (int i = 0; i < 3; i++) {
+        const auto& texture = textures[i];
+        if (!texture.enabled)
+            continue;
+        u8* texture_data = Memory::GetPhysicalPointer(texture.config.GetPhysicalAddress());
+        auto format = Pica::Texture::Format::FromTextureFormat(texture.format);
+        auto tmp = Pica::Texture::CodecFactory::build(format, texture_data, texture.config.width,
+                                                      texture.config.height);
+        Pica::Texture::Codec* codec = tmp.get();
+        codec->configTiling(true, 8);
+        codec->configRGBATransform(true);
+        codec->validate();
+        if (!codec->invalid()) {
+            codec->decode();
+            decoded_textures[i] = codec->transferInternalBuffer();
+        }
+    }
+
     bool stencil_action_enable = g_state.regs.output_merger.stencil_test.enable &&
                                  g_state.regs.framebuffer.depth_format == Regs::DepthFormat::D24S8;
     const auto stencil_test = g_state.regs.output_merger.stencil_test;
@@ -573,17 +594,17 @@ static void ProcessTriangleInternal(const Shader::OutputVertex& v0, const Shader
                     // NOTE: This may not be the right place for the inversion.
                     // TODO: Check if this applies to ETC textures, too.
                     s = GetWrappedTexCoord(texture.config.wrap_s, s, texture.config.width);
-                    t = texture.config.height - 1 -
+                    t = GetWrappedTexCoord(texture.config.wrap_t, t, texture.config.height);
-                        GetWrappedTexCoord(texture.config.wrap_t, t, texture.config.height);
 
+                    u8* decoded_texture = decoded_textures[i].get();
+                    u64 pos = s + texture.config.width * t;
+                    u32 texel;
+                    std::memcpy(&texel, &decoded_texture[pos * 4], 4);
+                    // TODO: Apply the min and mag filters to the texture
+                    texture_color[i] = Color::DecodeTexel(texel);
+#if PICA_DUMP_TEXTURES
                     u8* texture_data =
                         Memory::GetPhysicalPointer(texture.config.GetPhysicalAddress());
-                    auto info =
-                        DebugUtils::TextureInfo::FromPicaRegister(texture.config, texture.format);
-
-                    // TODO: Apply the min and mag filters to the texture
-                    texture_color[i] = DebugUtils::LookupTexture(texture_data, s, t, info);
-#if PICA_DUMP_TEXTURES
                     DebugUtils::DumpTexture(texture.config, texture_data);
 #endif
                 }
@@ -958,8 +979,9 @@ static void ProcessTriangleInternal(const Shader::OutputVertex& v0, const Shader
                 u8 new_stencil =
                     PerformStencilAction(action, old_stencil, stencil_test.reference_value);
                 if (g_state.regs.framebuffer.allow_depth_stencil_write != 0)
-                    SetStencil(x >> 4, y >> 4, (new_stencil & stencil_test.write_mask) |
+                    SetStencil(x >> 4, y >> 4,
-                                                   (old_stencil & ~stencil_test.write_mask));
+                               (new_stencil & stencil_test.write_mask) |
+                                   (old_stencil & ~stencil_test.write_mask));
             };
 
             if (stencil_action_enable) {

src/video_core/renderer_opengl/gl_rasterizer_cache.cpp

@@ -17,7 +17,6 @@
 #include "common/vector_math.h"
 #include "core/frontend/emu_window.h"
 #include "core/memory.h"
-#include "video_core/debug_utils/debug_utils.h"
 #include "video_core/pica_state.h"
 #include "video_core/renderer_opengl/gl_rasterizer_cache.h"
 #include "video_core/renderer_opengl/gl_state.h"
@@ -461,8 +460,7 @@ CachedSurface* RasterizerCacheOpenGL::GetSurfaceRect(const CachedSurface& params
 
 CachedSurface* RasterizerCacheOpenGL::GetTextureSurface(
     const Pica::Regs::FullTextureConfig& config) {
-    Pica::DebugUtils::TextureInfo info =
+    Pica::Texture::Info info = Pica::Texture::Info::FromPicaRegister(config.config, config.format);
-        Pica::DebugUtils::TextureInfo::FromPicaRegister(config.config, config.format);
 
     CachedSurface params;
     params.addr = info.physical_address;

src/video_core/texture/codec.cpp

@@ -1,3 +1,6 @@
+#include <cstring>
+#include <memory>
+#include <utility>
 #include "common/color.h"
 #include "common/math_util.h"
 #include "common/swap.h"
@@ -110,6 +113,30 @@ inline void Codec::encode_morton_pass() {
                              this->start_nibbles_size * 4);
 }
 
+u32 Codec::getTexel(u32 x, u32 y) {
+    const u32 tiling = this->morton_pass_tiling;
+    const u8* position = this->getTile(x, y);
+    const u32 bpp = this->start_nibbles_size * 4; // bits per pixel
+    const u32 mask = 0x0000FFFFFFFFUL >> (32 - bpp);
+    const u32 bit = (bpp % 8);
+    const u64 offset = (u64)EncodeMorton(x % tiling, y % tiling) % (tiling * tiling);
+    u32 result;
+    const u32 read_size = (bpp / 8) | ((bpp < 8) & 0x01);
+    std::memcpy(&result, &position[offset], read_size);
+    result >>= bit;
+    result &= mask;
+    return result;
+}
+
+u8* Codec::getTile(u32 x, u32 y) {
+    const u32 tiling = this->morton_pass_tiling;
+    x = (x / tiling) * tiling;
+    y = (y / tiling) * tiling;
+    const u32 bpp = this->start_nibbles_size * 4;
+    const u64 offset = ((x + y * this->width) * bpp) / 8;
+    return (this->target_buffer + offset);
+}
+
 std::unique_ptr<Codec> CodecFactory::build(Format::Type format, u8* target, u32 width, u32 height) {
     switch (format) {
     case Format::Type::RGBA8:

src/video_core/texture/codec.h

@@ -4,6 +4,7 @@
 #include <iostream>
 #include <memory>
 #include "common/common_types.h"
+#include "common/vector_math.h"
 #include "video_core/texture/formats.h"
 
 namespace Pica {
@@ -23,6 +24,11 @@ public:
     virtual void decode();
     virtual void encode();
 
+    // for legacy code compatibility
+    // returns the corresponding texel in RGBA format.
+    // prefer full decode/encode than texel lookups for full image decoding.
+    virtual const Math::Vec4<u8> lookupTexel(u32 x, u32 y) = 0;
+
     inline void setWidth(u32 width) {
         this->width = width;
     }
@@ -56,8 +62,6 @@ protected:
     u32 morton_pass_tiling = 8;
     bool raw_RGBA = false;
     bool preconverted = false;
-    bool disable_components = false;
-    u32 disable_components_mask = 0;
 
     u32 start_nibbles_size;
     u32 expected_nibbles_size;
@@ -77,6 +81,8 @@ protected:
 
     inline void decode_morton_pass();
     inline void encode_morton_pass();
+    u32 getTexel(u32 x, u32 y);
+    u8* getTile(u32 x, u32 y);
 };
 
 namespace CodecFactory {

src/video_core/texture/formats.h

@@ -10,6 +10,25 @@ namespace Pica {
 
 namespace Texture {
 
+struct Info {
+    PAddr physical_address;
+    int width;
+    int height;
+    int stride;
+    Pica::Regs::TextureFormat format;
+
+    static Info FromPicaRegister(const Pica::Regs::TextureConfig& config,
+                                 const Pica::Regs::TextureFormat& format) {
+        Info info;
+        info.physical_address = config.GetPhysicalAddress();
+        info.width = config.width;
+        info.height = config.height;
+        info.format = format;
+        info.stride = Pica::Regs::NibblesPerPixel(info.format) * info.width / 2;
+        return info;
+    }
+};
+
 struct Format {
 
     enum class Type {
@@ -92,17 +111,6 @@ struct Format {
 
 }; // Format
 
-struct Info {
-    PAddr physical_address;
-    int width;
-    int height;
-    int stride;
-    Pica::Regs::TextureFormat format;
-
-    static Info FromPicaRegister(const Pica::Regs::TextureConfig& config,
-                                 const Pica::Regs::TextureFormat& format);
-};
-
 } // Texture
 
 } // Pica

src/video_core/texture/internal/codecs.cpp

@@ -1,8 +1,10 @@
+#include "common/color.h"
+#include "common/common_types.h"
+#include "common/vector_math.h"
 #include "video_core/texture/internal/codecs.h"
 #include "video_core/texture/internal/etc1.h"
 #include "video_core/texture/internal/morton.h"
 #include "video_core/texture/internal/texture_utils.h"
-
 ///////////////////////////////////////////////////////////////////////////////
 // Optimizations
 //////////////////////////////////////////////////////////////////////////////
@@ -20,3 +22,6 @@
 
 // Encoders
 #include "encoders.cpp"
+
+// Lookup Texture
+#include "lookup.cpp"

src/video_core/texture/internal/codecs.h

@@ -4,15 +4,19 @@
 #include <iostream>
 #include <memory>
 #include "common/common_types.h"
+#include "common/vector_math.h"
 #include "video_core/texture/codec.h"
 #include "video_core/texture/formats.h"
 
 // each texture format codec
 class RGBACodec : public Pica::Texture::Codec {
 public:
-    RGBACodec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    RGBACodec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -26,9 +30,12 @@ protected:
 
 class RGBCodec : public Pica::Texture::Codec {
 public:
-    RGBCodec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    RGBCodec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -42,9 +49,12 @@ protected:
 
 class RGB5A1Codec : public Pica::Texture::Codec {
 public:
-    RGB5A1Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    RGB5A1Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -58,9 +68,12 @@ protected:
 
 class RGBA4Codec : public Pica::Texture::Codec {
 public:
-    RGBA4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    RGBA4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -74,9 +87,12 @@ protected:
 
 class RGB565Codec : public Pica::Texture::Codec {
 public:
-    RGB565Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    RGB565Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -90,9 +106,12 @@ protected:
 
 class RG8Codec : public Pica::Texture::Codec {
 public:
-    RG8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    RG8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -106,9 +125,12 @@ protected:
 
 class IA8Codec : public Pica::Texture::Codec {
 public:
-    IA8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    IA8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -122,9 +144,12 @@ protected:
 
 class I8Codec : public Pica::Texture::Codec {
 public:
-    I8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    I8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -138,9 +163,12 @@ protected:
 
 class A8Codec : public Pica::Texture::Codec {
 public:
-    A8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    A8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -154,9 +182,12 @@ protected:
 
 class IA4Codec : public Pica::Texture::Codec {
 public:
-    IA4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    IA4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -170,9 +201,12 @@ protected:
 
 class I4Codec : public Pica::Texture::Codec {
 public:
-    I4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    I4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -186,9 +220,12 @@ protected:
 
 class A4Codec : public Pica::Texture::Codec {
 public:
-    A4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    A4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -202,9 +239,12 @@ protected:
 
 class ETC1Codec : public Pica::Texture::Codec {
 public:
-    ETC1Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    ETC1Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -218,9 +258,12 @@ protected:
 
 class ETC1A4Codec : public Pica::Texture::Codec {
 public:
-    ETC1A4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    ETC1A4Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -234,9 +277,12 @@ protected:
 
 class D16Codec : public Pica::Texture::Codec {
 public:
-    D16Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    D16Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -250,9 +296,12 @@ protected:
 
 class D24Codec : public Pica::Texture::Codec {
 public:
-    D24Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    D24Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {
@@ -266,9 +315,12 @@ protected:
 
 class D24S8Codec : public Pica::Texture::Codec {
 public:
-    D24S8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {}
+    D24S8Codec(u8* target, u32 width, u32 height) : Pica::Texture::Codec(target, width, height) {
+        this->setSize();
+    }
     void decode();
     void encode();
+    const Math::Vec4<u8> lookupTexel(u32 x, u32 y);
 
 protected:
     virtual void setSize() {

src/video_core/texture/internal/lookup.cpp

@@ -0,0 +1,110 @@
+
+const Math::Vec4<u8> RGBACodec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRGBA8(tmp);
+}
+
+const Math::Vec4<u8> RGBCodec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRGB8(tmp);
+}
+
+const Math::Vec4<u8> RGB5A1Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRGB5A1(tmp);
+}
+
+const Math::Vec4<u8> RGB565Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRGB565(tmp);
+}
+
+const Math::Vec4<u8> RGBA4Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRGBA4(tmp);
+}
+
+const Math::Vec4<u8> RG8Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRG8(tmp);
+}
+
+const Math::Vec4<u8> IA8Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8 intensity = (texel & 0x00FF00) >> 8;
+    u8 alpha = (texel & 0x0000FF);
+    Math::Vec4<u8> result(intensity, intensity, intensity, alpha);
+    return result;
+}
+
+const Math::Vec4<u8> IA4Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8 intensity = Color::Convert4To8((texel & 0x00F0) >> 4);
+    u8 alpha = Color::Convert4To8(texel & 0x0F);
+    Math::Vec4<u8> result(intensity, intensity, intensity, alpha);
+    return result;
+}
+
+const Math::Vec4<u8> I8Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8 intensity = (texel & 0x0000FF);
+    Math::Vec4<u8> result(intensity, intensity, intensity, 255);
+    return result;
+}
+
+const Math::Vec4<u8> I4Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    const u32 bit = 1 - (x % 2);
+    u8 intensity = Color::Convert4To8((texel & 0x0000FF) >> bit);
+    Math::Vec4<u8> result(intensity, intensity, intensity, 255);
+    return result;
+}
+
+const Math::Vec4<u8> A8Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8 alpha = (texel & 0x0000FF);
+    Math::Vec4<u8> result(0, 0, 0, alpha);
+    return result;
+}
+
+const Math::Vec4<u8> A4Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    const u32 bit = 1 - (x % 2);
+    u8 alpha = Color::Convert4To8((texel & 0x0000FF) >> bit);
+    Math::Vec4<u8> result(0, 0, 0, alpha);
+    return result;
+}
+
+const Math::Vec4<u8> ETC1Codec::lookupTexel(u32 x, u32 y) {
+    Math::Vec4<u8> result(0, 0, 0, 255);
+    return result;
+}
+
+const Math::Vec4<u8> ETC1A4Codec::lookupTexel(u32 x, u32 y) {
+    Math::Vec4<u8> result(0, 0, 0, 255);
+    return result;
+}
+
+const Math::Vec4<u8> D16Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRG8(tmp);
+}
+
+const Math::Vec4<u8> D24Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRGB8(tmp);
+}
+
+const Math::Vec4<u8> D24S8Codec::lookupTexel(u32 x, u32 y) {
+    u32 texel = super::getTexel(x, y);
+    u8* tmp = reinterpret_cast<u8*>(&texel);
+    return Color::DecodeRGBA8(tmp);
+}

src/video_core/texture/internal/morton.cpp

@@ -19,22 +19,16 @@ static u32 Compact1By1(u32 x) {
     return x;
 }
 
-static u32 EncodeMorton(u32 x, u32 y) {
+u32 EncodeMorton(u32 x, u32 y) {
     return (Part1By1(y) << 1) | Part1By1(x);
 }
 
-static u32 DecodeMortonX(u32 code) {
+u32 DecodeMortonX(u32 code) {
     return Compact1By1(code >> 0);
 }
 
-static u32 DecodeMortonY(u32 code) {
+u32 DecodeMortonY(u32 code) {
     return Compact1By1(code >> 1);
 }
 
-u32 MortonOffset(u32 x, u32 y, u32 width, u32 height, u32 tiling, u32 bpp) {
-    u32 tile = (x + y * height) * width / (tiling * tiling);
-    tile = (tile * bpp) / 8;
-    return tile + EncodeMorton(x % tiling, y % tiling);
-}
-
 #include "morton8x8_optimized.cpp"

src/video_core/texture/internal/morton.h

@@ -2,7 +2,9 @@
 
 #include "common/common_types.h"
 
-u32 MortonOffset(u32 x, u32 y, u32 width, u32 height, u32 tiling, u32 bpp);
+u32 EncodeMorton(u32 x, u32 y);
+u32 DecodeMortonX(u32 code);
+u32 DecodeMortonY(u32 code);
 
 namespace Decoders {
 bool Morton_8x8(u8* morton_buffer, u8* matrix_buffer, u32 width, u32 height, u32 bpp);