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GPU: Add support for the DXT23 and DXT45 compressed texture formats.
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@ -49,9 +49,11 @@ struct FormatTuple {
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};
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static constexpr std::array<FormatTuple, SurfaceParams::MaxPixelFormat> tex_format_tuples = {{
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{GL_RGBA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, false, 1}, // ABGR8
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{GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV, false, 1}, // B5G6R5
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{GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_INT_8_8_8_8, true, 16}, // DXT1
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{GL_RGBA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, false, 1}, // ABGR8
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{GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV, false, 1}, // B5G6R5
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{GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_INT_8_8_8_8, true, 16}, // DXT1
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{GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, true, 16}, // DXT23
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{GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, true, 16}, // DXT45
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}};
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static const FormatTuple& GetFormatTuple(PixelFormat pixel_format, ComponentType component_type) {
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@ -81,23 +83,6 @@ static u16 GetResolutionScaleFactor() {
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: Settings::values.resolution_factor);
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}
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template <bool morton_to_gl, PixelFormat format>
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static void MortonCopyTile(u32 stride, u8* tile_buffer, u8* gl_buffer) {
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constexpr u32 bytes_per_pixel = SurfaceParams::GetFormatBpp(format) / 8;
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constexpr u32 gl_bytes_per_pixel = CachedSurface::GetGLBytesPerPixel(format);
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for (u32 y = 0; y < 8; ++y) {
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for (u32 x = 0; x < 8; ++x) {
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u8* tile_ptr = tile_buffer + VideoCore::MortonInterleave(x, y) * bytes_per_pixel;
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u8* gl_ptr = gl_buffer + ((7 - y) * stride + x) * gl_bytes_per_pixel;
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if (morton_to_gl) {
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std::memcpy(gl_ptr, tile_ptr, bytes_per_pixel);
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} else {
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std::memcpy(tile_ptr, gl_ptr, bytes_per_pixel);
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}
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}
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}
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}
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template <bool morton_to_gl, PixelFormat format>
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void MortonCopy(u32 stride, u32 block_height, u32 height, u8* gl_buffer, VAddr base, VAddr start,
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VAddr end) {
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@ -121,9 +106,9 @@ void MortonCopy(u32 stride, u32 block_height, u32 height, u8* gl_buffer, VAddr b
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static constexpr std::array<void (*)(u32, u32, u32, u8*, VAddr, VAddr, VAddr),
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SurfaceParams::MaxPixelFormat>
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morton_to_gl_fns = {
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MortonCopy<true, PixelFormat::ABGR8>,
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MortonCopy<true, PixelFormat::B5G6R5>,
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MortonCopy<true, PixelFormat::DXT1>,
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MortonCopy<true, PixelFormat::ABGR8>, MortonCopy<true, PixelFormat::B5G6R5>,
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MortonCopy<true, PixelFormat::DXT1>, MortonCopy<true, PixelFormat::DXT23>,
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MortonCopy<true, PixelFormat::DXT45>,
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};
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static constexpr std::array<void (*)(u32, u32, u32, u8*, VAddr, VAddr, VAddr),
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@ -131,7 +116,9 @@ static constexpr std::array<void (*)(u32, u32, u32, u8*, VAddr, VAddr, VAddr),
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gl_to_morton_fns = {
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MortonCopy<false, PixelFormat::ABGR8>,
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MortonCopy<false, PixelFormat::B5G6R5>,
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// TODO(Subv): Swizzling the DXT1 format is not yet supported
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// TODO(Subv): Swizzling the DXT1/DXT23/DXT45 formats is not yet supported
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nullptr,
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nullptr,
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nullptr,
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};
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@ -55,6 +55,8 @@ struct SurfaceParams {
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ABGR8 = 0,
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B5G6R5 = 1,
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DXT1 = 2,
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DXT23 = 3,
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DXT45 = 4,
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Max,
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Invalid = 255,
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@ -84,9 +86,11 @@ struct SurfaceParams {
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return 0;
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constexpr std::array<unsigned int, MaxPixelFormat> bpp_table = {
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32, // ABGR8
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16, // B5G6R5
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64, // DXT1
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32, // ABGR8
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16, // B5G6R5
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64, // DXT1
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128, // DXT23
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128, // DXT45
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};
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ASSERT(static_cast<size_t>(format) < bpp_table.size());
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@ -125,6 +129,10 @@ struct SurfaceParams {
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return PixelFormat::B5G6R5;
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case Tegra::Texture::TextureFormat::DXT1:
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return PixelFormat::DXT1;
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case Tegra::Texture::TextureFormat::DXT23:
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return PixelFormat::DXT23;
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case Tegra::Texture::TextureFormat::DXT45:
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return PixelFormat::DXT45;
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default:
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NGLOG_CRITICAL(HW_GPU, "Unimplemented format={}", static_cast<u32>(format));
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UNREACHABLE();
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@ -140,6 +148,10 @@ struct SurfaceParams {
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return Tegra::Texture::TextureFormat::B5G6R5;
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case PixelFormat::DXT1:
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return Tegra::Texture::TextureFormat::DXT1;
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case PixelFormat::DXT23:
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return Tegra::Texture::TextureFormat::DXT23;
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case PixelFormat::DXT45:
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return Tegra::Texture::TextureFormat::DXT45;
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default:
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UNREACHABLE();
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}
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@ -48,6 +48,10 @@ u32 BytesPerPixel(TextureFormat format) {
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case TextureFormat::DXT1:
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// In this case a 'pixel' actually refers to a 4x4 tile.
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return 8;
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case TextureFormat::DXT23:
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case TextureFormat::DXT45:
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// In this case a 'pixel' actually refers to a 4x4 tile.
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return 16;
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case TextureFormat::A8R8G8B8:
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return 4;
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case TextureFormat::B5G6R5:
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@ -67,7 +71,9 @@ std::vector<u8> UnswizzleTexture(VAddr address, TextureFormat format, u32 width,
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switch (format) {
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case TextureFormat::DXT1:
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// In the DXT1 format, each 4x4 tile is swizzled instead of just individual pixel values.
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case TextureFormat::DXT23:
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case TextureFormat::DXT45:
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// In the DXT formats, each 4x4 tile is swizzled instead of just individual pixel values.
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CopySwizzledData(width / 4, height / 4, bytes_per_pixel, bytes_per_pixel, data,
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unswizzled_data.data(), true, block_height);
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break;
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@ -91,6 +97,8 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
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// TODO(Subv): Implement.
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switch (format) {
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case TextureFormat::DXT1:
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case TextureFormat::DXT23:
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case TextureFormat::DXT45:
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case TextureFormat::A8R8G8B8:
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case TextureFormat::B5G6R5:
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// TODO(Subv): For the time being just forward the same data without any decoding.
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