Removed legacy code and refactored to the new texture module

src/citra_qt/debugger/graphics/graphics_cmdlists.cpp

@@ -20,24 +20,43 @@
 #include "video_core/debug_utils/debug_utils.h"
 #include "video_core/pica.h"
 #include "video_core/pica_state.h"
+#include "video_core/texture/codec.h"
+#include "video_core/texture/formats.h"
 
 namespace {
-QImage LoadTexture(const u8* src, const Pica::DebugUtils::TextureInfo& info) {
+QImage LoadTexture(const u8* src, const Pica::Texture::Info& info) {
+    auto format = Pica::Texture::Format::FromTextureFormat(info.format);
+    auto tmp = Pica::Texture::CodecFactory::build(
+        // clang-format off
+        format, const_cast<u8*>(src), info.width, info.height
+        // clang-format on
+        );
+    Pica::Texture::Codec* codec = tmp.get();
+    codec->configTiling(true, 8); // change 8 for 32 in case the image is tiled
+                                  // on blocks of 32x32
+    codec->configRGBATransform(true);
+    codec->validate();
+    std::unique_ptr<u8[]> texture;
+    if (!codec->invalid()) {
+        codec->decode();
+        texture = codec->transferInternalBuffer();
+    }
     QImage decoded_image(info.width, info.height, QImage::Format_ARGB32);
+    u8* tex_ptr = texture.get();
     for (int y = 0; y < info.height; ++y) {
         for (int x = 0; x < info.width; ++x) {
-            Math::Vec4<u8> color = Pica::DebugUtils::LookupTexture(src, x, y, info, true);
+            u32 texel;
-            decoded_image.setPixel(x, y, qRgba(color.r(), color.g(), color.b(), color.a()));
+            std::memcpy(&texel, &tex_ptr[(x + y * info.width) * 4], 4);
+            texel = (texel >> 8) | (texel << 24);
+            decoded_image.setPixel(x, y, texel);
         }
     }
-
     return decoded_image;
 }
 
 class TextureInfoWidget : public QWidget {
 public:
-    TextureInfoWidget(const u8* src, const Pica::DebugUtils::TextureInfo& info,
+    TextureInfoWidget(const u8* src, const Pica::Texture::Info& info, QWidget* parent = nullptr)
-                      QWidget* parent = nullptr)
         : QWidget(parent) {
         QLabel* image_widget = new QLabel;
         QPixmap image_pixmap = QPixmap::fromImage(LoadTexture(src, info));
@@ -160,7 +179,7 @@ void GPUCommandListWidget::SetCommandInfo(const QModelIndex& index) {
         const auto config = texture.config;
         const auto format = texture.format;
 
-        const auto info = Pica::DebugUtils::TextureInfo::FromPicaRegister(config, format);
+        const auto info = Pica::Texture::Info::FromPicaRegister(config, format);
         const u8* src = Memory::GetPhysicalPointer(config.GetPhysicalAddress());
         new_info_widget = new TextureInfoWidget(src, info);
     }

src/citra_qt/debugger/graphics/graphics_surface.cpp

@@ -18,6 +18,8 @@
 #include "core/memory.h"
 #include "video_core/pica.h"
 #include "video_core/pica_state.h"
+#include "video_core/texture/codec.h"
+#include "video_core/texture/formats.h"
 #include "video_core/utils.h"
 
 SurfacePicture::SurfacePicture(QWidget* parent, GraphicsSurfaceWidget* surface_widget_)
@@ -512,7 +514,7 @@ void GraphicsSurfaceWidget::OnUpdate() {
         }
 
         const auto texture = Pica::g_state.regs.GetTextures()[texture_index];
-        auto info = Pica::DebugUtils::TextureInfo::FromPicaRegister(texture.config, texture.format);
+        auto info = Pica::Texture::Info::FromPicaRegister(texture.config, texture.format);
 
         surface_address = info.physical_address;
         surface_width = info.width;
@@ -570,70 +572,38 @@ void GraphicsSurfaceWidget::OnUpdate() {
     unsigned nibbles_per_pixel = GraphicsSurfaceWidget::NibblesPerPixel(surface_format);
     unsigned stride = nibbles_per_pixel * surface_width / 2;
 
-    // We handle depth formats here because DebugUtils only supports TextureFormats
-    if (surface_format <= Format::MaxTextureFormat) {
-
     // Generate a virtual texture
-        Pica::DebugUtils::TextureInfo info;
+    Pica::Texture::Info info;
     info.physical_address = surface_address;
     info.width = surface_width;
     info.height = surface_height;
     info.format = static_cast<Pica::Regs::TextureFormat>(surface_format);
     info.stride = stride;
 
-        for (unsigned int y = 0; y < surface_height; ++y) {
+    auto format = Pica::Texture::Format::FromTextureFormat(info.format);
-            for (unsigned int x = 0; x < surface_width; ++x) {
+    auto tmp = Pica::Texture::CodecFactory::build(
-                Math::Vec4<u8> color = Pica::DebugUtils::LookupTexture(buffer, x, y, info, true);
+        // clang-format off
-                decoded_image.setPixel(x, y, qRgba(color.r(), color.g(), color.b(), color.a()));
+            format, buffer, info.width, info.height
-            }
+        // clang-format on
+        );
+    Pica::Texture::Codec* codec = tmp.get();
+    codec->configTiling(true, 8); // change 8 for 32 in case the image is tiled
+                                  // on blocks of 32x32
+    codec->configRGBATransform(true);
+    codec->validate();
+    std::unique_ptr<u8[]> texture;
+    if (!codec->invalid()) {
+        codec->decode();
+        texture = codec->transferInternalBuffer();
     }
 
-    } else {
+    u8* tex_ptr = texture.get();
-
+    for (int y = 0; y < info.height; ++y) {
-        ASSERT_MSG(nibbles_per_pixel >= 2,
+        for (int x = 0; x < info.width; ++x) {
-                   "Depth decoder only supports formats with at least one byte per pixel");
+            u32 texel;
-        unsigned bytes_per_pixel = nibbles_per_pixel / 2;
+            std::memcpy(&texel, &tex_ptr[(x + y * info.width) * 4], 4);
-
+            texel = (texel >> 8) | (texel << 24);
-        for (unsigned int y = 0; y < surface_height; ++y) {
+            decoded_image.setPixel(x, y, texel);
-            for (unsigned int x = 0; x < surface_width; ++x) {
-                const u32 coarse_y = y & ~7;
-                u32 offset = VideoCore::GetMortonOffset(x, y, bytes_per_pixel) + coarse_y * stride;
-                const u8* pixel = buffer + offset;
-                Math::Vec4<u8> color = {0, 0, 0, 0};
-
-                switch (surface_format) {
-                case Format::D16: {
-                    u32 data = Color::DecodeD16(pixel);
-                    color.r() = data & 0xFF;
-                    color.g() = (data >> 8) & 0xFF;
-                    break;
-                }
-                case Format::D24: {
-                    u32 data = Color::DecodeD24(pixel);
-                    color.r() = data & 0xFF;
-                    color.g() = (data >> 8) & 0xFF;
-                    color.b() = (data >> 16) & 0xFF;
-                    break;
-                }
-                case Format::D24X8: {
-                    Math::Vec2<u32> data = Color::DecodeD24S8(pixel);
-                    color.r() = data.x & 0xFF;
-                    color.g() = (data.x >> 8) & 0xFF;
-                    color.b() = (data.x >> 16) & 0xFF;
-                    break;
-                }
-                case Format::X24S8: {
-                    Math::Vec2<u32> data = Color::DecodeD24S8(pixel);
-                    color.r() = color.g() = color.b() = data.y;
-                    break;
-                }
-                default:
-                    qDebug() << "Unknown surface format " << static_cast<int>(surface_format);
-                    break;
-                }
-
-                decoded_image.setPixel(x, y, qRgba(color.r(), color.g(), color.b(), 255));
-            }
         }
     }
 

src/video_core/debug_utils/debug_utils.cpp

@@ -35,6 +35,8 @@
 #include "video_core/rasterizer_interface.h"
 #include "video_core/renderer_base.h"
 #include "video_core/shader/shader.h"
+#include "video_core/texture/codec.h"
+#include "video_core/texture/formats.h"
 #include "video_core/utils.h"
 #include "video_core/video_core.h"
 
@@ -315,257 +317,6 @@ std::unique_ptr<PicaTrace> FinishPicaTracing() {
     return ret;
 }
 
-const Math::Vec4<u8> LookupTexture(const u8* source, int x, int y, const TextureInfo& info,
-                                   bool disable_alpha) {
-    const unsigned int coarse_x = x & ~7;
-    const unsigned int coarse_y = y & ~7;
-
-    if (info.format != Regs::TextureFormat::ETC1 && info.format != Regs::TextureFormat::ETC1A4) {
-        // TODO(neobrain): Fix code design to unify vertical block offsets!
-        source += coarse_y * info.stride;
-    }
-
-    // TODO: Assert that width/height are multiples of block dimensions
-
-    switch (info.format) {
-    case Regs::TextureFormat::RGBA8: {
-        auto res = Color::DecodeRGBA8(source + VideoCore::GetMortonOffset(x, y, 4));
-        return {res.r(), res.g(), res.b(), static_cast<u8>(disable_alpha ? 255 : res.a())};
-    }
-
-    case Regs::TextureFormat::RGB8: {
-        auto res = Color::DecodeRGB8(source + VideoCore::GetMortonOffset(x, y, 3));
-        return {res.r(), res.g(), res.b(), 255};
-    }
-
-    case Regs::TextureFormat::RGB5A1: {
-        auto res = Color::DecodeRGB5A1(source + VideoCore::GetMortonOffset(x, y, 2));
-        return {res.r(), res.g(), res.b(), static_cast<u8>(disable_alpha ? 255 : res.a())};
-    }
-
-    case Regs::TextureFormat::RGB565: {
-        auto res = Color::DecodeRGB565(source + VideoCore::GetMortonOffset(x, y, 2));
-        return {res.r(), res.g(), res.b(), 255};
-    }
-
-    case Regs::TextureFormat::RGBA4: {
-        auto res = Color::DecodeRGBA4(source + VideoCore::GetMortonOffset(x, y, 2));
-        return {res.r(), res.g(), res.b(), static_cast<u8>(disable_alpha ? 255 : res.a())};
-    }
-
-    case Regs::TextureFormat::IA8: {
-        const u8* source_ptr = source + VideoCore::GetMortonOffset(x, y, 2);
-
-        if (disable_alpha) {
-            // Show intensity as red, alpha as green
-            return {source_ptr[1], source_ptr[0], 0, 255};
-        } else {
-            return {source_ptr[1], source_ptr[1], source_ptr[1], source_ptr[0]};
-        }
-    }
-
-    case Regs::TextureFormat::RG8: {
-        auto res = Color::DecodeRG8(source + VideoCore::GetMortonOffset(x, y, 2));
-        return {res.r(), res.g(), 0, 255};
-    }
-
-    case Regs::TextureFormat::I8: {
-        const u8* source_ptr = source + VideoCore::GetMortonOffset(x, y, 1);
-        return {*source_ptr, *source_ptr, *source_ptr, 255};
-    }
-
-    case Regs::TextureFormat::A8: {
-        const u8* source_ptr = source + VideoCore::GetMortonOffset(x, y, 1);
-
-        if (disable_alpha) {
-            return {*source_ptr, *source_ptr, *source_ptr, 255};
-        } else {
-            return {0, 0, 0, *source_ptr};
-        }
-    }
-
-    case Regs::TextureFormat::IA4: {
-        const u8* source_ptr = source + VideoCore::GetMortonOffset(x, y, 1);
-
-        u8 i = Color::Convert4To8(((*source_ptr) & 0xF0) >> 4);
-        u8 a = Color::Convert4To8((*source_ptr) & 0xF);
-
-        if (disable_alpha) {
-            // Show intensity as red, alpha as green
-            return {i, a, 0, 255};
-        } else {
-            return {i, i, i, a};
-        }
-    }
-
-    case Regs::TextureFormat::I4: {
-        u32 morton_offset = VideoCore::GetMortonOffset(x, y, 1);
-        const u8* source_ptr = source + morton_offset / 2;
-
-        u8 i = (morton_offset % 2) ? ((*source_ptr & 0xF0) >> 4) : (*source_ptr & 0xF);
-        i = Color::Convert4To8(i);
-
-        return {i, i, i, 255};
-    }
-
-    case Regs::TextureFormat::A4: {
-        u32 morton_offset = VideoCore::GetMortonOffset(x, y, 1);
-        const u8* source_ptr = source + morton_offset / 2;
-
-        u8 a = (morton_offset % 2) ? ((*source_ptr & 0xF0) >> 4) : (*source_ptr & 0xF);
-        a = Color::Convert4To8(a);
-
-        if (disable_alpha) {
-            return {a, a, a, 255};
-        } else {
-            return {0, 0, 0, a};
-        }
-    }
-
-    case Regs::TextureFormat::ETC1:
-    case Regs::TextureFormat::ETC1A4: {
-        bool has_alpha = (info.format == Regs::TextureFormat::ETC1A4);
-
-        // ETC1 further subdivides each 8x8 tile into four 4x4 subtiles
-        const int subtile_width = 4;
-        const int subtile_height = 4;
-
-        int subtile_index = ((x / subtile_width) & 1) + 2 * ((y / subtile_height) & 1);
-        unsigned subtile_bytes = has_alpha ? 2 : 1; // TODO: Name...
-
-        const u64* source_ptr = (const u64*)(source + coarse_x * subtile_bytes * 4 +
-                                             coarse_y * subtile_bytes * 4 * (info.width / 8) +
-                                             subtile_index * subtile_bytes * 8);
-        u64 alpha = 0xFFFFFFFFFFFFFFFF;
-        if (has_alpha) {
-            alpha = *source_ptr;
-            source_ptr++;
-        }
-
-        union ETC1Tile {
-            // Each of these two is a collection of 16 bits (one per lookup value)
-            BitField<0, 16, u64> table_subindexes;
-            BitField<16, 16, u64> negation_flags;
-
-            unsigned GetTableSubIndex(unsigned index) const {
-                return (table_subindexes >> index) & 1;
-            }
-
-            bool GetNegationFlag(unsigned index) const {
-                return ((negation_flags >> index) & 1) == 1;
-            }
-
-            BitField<32, 1, u64> flip;
-            BitField<33, 1, u64> differential_mode;
-
-            BitField<34, 3, u64> table_index_2;
-            BitField<37, 3, u64> table_index_1;
-
-            union {
-                // delta value + base value
-                BitField<40, 3, s64> db;
-                BitField<43, 5, u64> b;
-
-                BitField<48, 3, s64> dg;
-                BitField<51, 5, u64> g;
-
-                BitField<56, 3, s64> dr;
-                BitField<59, 5, u64> r;
-            } differential;
-
-            union {
-                BitField<40, 4, u64> b2;
-                BitField<44, 4, u64> b1;
-
-                BitField<48, 4, u64> g2;
-                BitField<52, 4, u64> g1;
-
-                BitField<56, 4, u64> r2;
-                BitField<60, 4, u64> r1;
-            } separate;
-
-            const Math::Vec3<u8> GetRGB(int x, int y) const {
-                int texel = 4 * x + y;
-
-                if (flip)
-                    std::swap(x, y);
-
-                // Lookup base value
-                Math::Vec3<int> ret;
-                if (differential_mode) {
-                    ret.r() = static_cast<int>(differential.r);
-                    ret.g() = static_cast<int>(differential.g);
-                    ret.b() = static_cast<int>(differential.b);
-                    if (x >= 2) {
-                        ret.r() += static_cast<int>(differential.dr);
-                        ret.g() += static_cast<int>(differential.dg);
-                        ret.b() += static_cast<int>(differential.db);
-                    }
-                    ret.r() = Color::Convert5To8(ret.r());
-                    ret.g() = Color::Convert5To8(ret.g());
-                    ret.b() = Color::Convert5To8(ret.b());
-                } else {
-                    if (x < 2) {
-                        ret.r() = Color::Convert4To8(static_cast<u8>(separate.r1));
-                        ret.g() = Color::Convert4To8(static_cast<u8>(separate.g1));
-                        ret.b() = Color::Convert4To8(static_cast<u8>(separate.b1));
-                    } else {
-                        ret.r() = Color::Convert4To8(static_cast<u8>(separate.r2));
-                        ret.g() = Color::Convert4To8(static_cast<u8>(separate.g2));
-                        ret.b() = Color::Convert4To8(static_cast<u8>(separate.b2));
-                    }
-                }
-
-                // Add modifier
-                unsigned table_index =
-                    static_cast<int>((x < 2) ? table_index_1.Value() : table_index_2.Value());
-
-                static const std::array<std::array<u8, 2>, 8> etc1_modifier_table = {{
-                    {{2, 8}},
-                    {{5, 17}},
-                    {{9, 29}},
-                    {{13, 42}},
-                    {{18, 60}},
-                    {{24, 80}},
-                    {{33, 106}},
-                    {{47, 183}},
-                }};
-
-                int modifier = etc1_modifier_table.at(table_index).at(GetTableSubIndex(texel));
-                if (GetNegationFlag(texel))
-                    modifier *= -1;
-
-                ret.r() = MathUtil::Clamp(ret.r() + modifier, 0, 255);
-                ret.g() = MathUtil::Clamp(ret.g() + modifier, 0, 255);
-                ret.b() = MathUtil::Clamp(ret.b() + modifier, 0, 255);
-
-                return ret.Cast<u8>();
-            }
-        } const* etc1_tile = reinterpret_cast<const ETC1Tile*>(source_ptr);
-
-        alpha >>= 4 * ((x & 3) * 4 + (y & 3));
-        return Math::MakeVec(etc1_tile->GetRGB(x & 3, y & 3),
-                             disable_alpha ? (u8)255 : Color::Convert4To8(alpha & 0xF));
-    }
-
-    default:
-        LOG_ERROR(HW_GPU, "Unknown texture format: %x", (u32)info.format);
-        DEBUG_ASSERT(false);
-        return {};
-    }
-}
-
-TextureInfo TextureInfo::FromPicaRegister(const Regs::TextureConfig& config,
-                                          const Regs::TextureFormat& format) {
-    TextureInfo 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;
-}
-
 #ifdef HAVE_PNG
 // Adapter functions to libpng to write/flush to File::IOFile instances.
 static void WriteIOFile(png_structp png_ptr, png_bytep data, png_size_t length) {
@@ -581,6 +332,13 @@ static void FlushIOFile(png_structp png_ptr) {
 }
 #endif
 
+void clean_mess(png_infop info_ptr, png_structp png_ptr) {
+    if (info_ptr != nullptr)
+        png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);
+    if (png_ptr != nullptr)
+        png_destroy_write_struct(&png_ptr, (png_infopp) nullptr);
+}
+
 void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data) {
 #ifndef HAVE_PNG
     return;
@@ -608,20 +366,23 @@ void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data) {
     png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
     if (png_ptr == nullptr) {
         LOG_ERROR(Debug_GPU, "Could not allocate write struct");
-        goto finalise;
+        clean_mess(info_ptr, png_ptr);
+        return;
     }
 
     // Initialize info structure
     info_ptr = png_create_info_struct(png_ptr);
     if (info_ptr == nullptr) {
         LOG_ERROR(Debug_GPU, "Could not allocate info struct");
-        goto finalise;
+        clean_mess(info_ptr, png_ptr);
+        return;
     }
 
     // Setup Exception handling
     if (setjmp(png_jmpbuf(png_ptr))) {
         LOG_ERROR(Debug_GPU, "Error during png creation");
-        goto finalise;
+        clean_mess(info_ptr, png_ptr);
+        return;
     }
 
     png_set_write_fn(png_ptr, static_cast<void*>(&fp), WriteIOFile, FlushIOFile);
@@ -639,18 +400,30 @@ void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data) {
 
     png_write_info(png_ptr, info_ptr);
 
+    auto format = Pica::Texture::Format::FromTextureFormat(g_state.regs.texture0_format);
+    auto tmp = Pica::Texture::CodecFactory::build(
+        // clang-format off
+        format, data, texture_config.width, texture_config.height
+        // clang-format on
+        );
+    Pica::Texture::Codec* codec = tmp.get();
+    codec->configTiling(true, 8); // change 8 for 32 in case the image is tiled
+                                  // on blocks of 32x32
+    codec->configRGBATransform(true);
+    codec->validate();
+    std::unique_ptr<u8[]> texture;
+    if (!codec->invalid()) {
+        codec->decode();
+        texture = codec->transferInternalBuffer();
+    }
+
     buf = new u8[row_stride * texture_config.height];
     for (unsigned y = 0; y < texture_config.height; ++y) {
         for (unsigned x = 0; x < texture_config.width; ++x) {
-            TextureInfo info;
+            const size_t pos1 = 3 * x + y * row_stride;
-            info.width = texture_config.width;
+            const size_t pos2 = (x + y * texture_config.width) * 4;
-            info.height = texture_config.height;
+            auto tex = texture.get();
-            info.stride = row_stride;
+            std::memcpy(&buf[pos1], &tex[pos2], 3);
-            info.format = g_state.regs.texture0_format;
-            Math::Vec4<u8> texture_color = LookupTexture(data, x, y, info);
-            buf[3 * x + y * row_stride] = texture_color.r();
-            buf[3 * x + y * row_stride + 1] = texture_color.g();
-            buf[3 * x + y * row_stride + 2] = texture_color.b();
         }
     }
 
@@ -665,11 +438,8 @@ void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data) {
     // End write
     png_write_end(png_ptr, nullptr);
 
-finalise:
+    clean_mess(info_ptr, png_ptr);
-    if (info_ptr != nullptr)
+    return;
-        png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);
-    if (png_ptr != nullptr)
-        png_destroy_write_struct(&png_ptr, (png_infopp) nullptr);
 #endif
 }
 

src/video_core/debug_utils/debug_utils.h

@@ -205,31 +205,6 @@ inline bool IsPicaTracing() {
 void OnPicaRegWrite(PicaTrace::Write write);
 std::unique_ptr<PicaTrace> FinishPicaTracing();
 
-struct TextureInfo {
-    PAddr physical_address;
-    int width;
-    int height;
-    int stride;
-    Pica::Regs::TextureFormat format;
-
-    static TextureInfo FromPicaRegister(const Pica::Regs::TextureConfig& config,
-                                        const Pica::Regs::TextureFormat& format);
-};
-
-/**
- * Lookup texel located at the given coordinates and return an RGBA vector of its color.
- * @param source Source pointer to read data from
- * @param s,t Texture coordinates to read from
- * @param info TextureInfo object describing the texture setup
- * @param disable_alpha This is used for debug widgets which use this method to display textures
- * without providing a good way to visualize alpha by themselves. If true, this will return 255 for
- * the alpha component, and either drop the information entirely or store it in an "unused" color
- * channel.
- * @todo Eventually we should get rid of the disable_alpha parameter.
- */
-const Math::Vec4<u8> LookupTexture(const u8* source, int s, int t, const TextureInfo& info,
-                                   bool disable_alpha = false);
-
 void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data);
 
 std::string GetTevStageConfigColorCombinerString(const Pica::Regs::TevStageConfig& tev_stage);