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Merge pull request #353 from Subv/compressed_formats

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GPU: Add support for the DXT23 and DXT45 compressed texture formats.
This commit is contained in:
bunnei 2018-04-19 09:02:19 -04:00 committed by GitHub
commit d019bb16f6
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 35 additions and 28 deletions
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35
src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
View File

@ -49,9 +49,11 @@ struct FormatTuple {
};
static constexpr std::array<FormatTuple, SurfaceParams::MaxPixelFormat> tex_format_tuples = {{
{GL_RGBA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, false, 1}, // ABGR8
{GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV, false, 1}, // B5G6R5
{GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_INT_8_8_8_8, true, 16}, // DXT1
{GL_RGBA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, false, 1}, // ABGR8
{GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV, false, 1}, // B5G6R5
{GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_INT_8_8_8_8, true, 16}, // DXT1
{GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, true, 16}, // DXT23
{GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, true, 16}, // DXT45
}};
static const FormatTuple& GetFormatTuple(PixelFormat pixel_format, ComponentType component_type) {
@ -81,23 +83,6 @@ static u16 GetResolutionScaleFactor() {
: Settings::values.resolution_factor);
}
template <bool morton_to_gl, PixelFormat format>
static void MortonCopyTile(u32 stride, u8* tile_buffer, u8* gl_buffer) {
constexpr u32 bytes_per_pixel = SurfaceParams::GetFormatBpp(format) / 8;
constexpr u32 gl_bytes_per_pixel = CachedSurface::GetGLBytesPerPixel(format);
for (u32 y = 0; y < 8; ++y) {
for (u32 x = 0; x < 8; ++x) {
u8* tile_ptr = tile_buffer + VideoCore::MortonInterleave(x, y) * bytes_per_pixel;
u8* gl_ptr = gl_buffer + ((7 - y) * stride + x) * gl_bytes_per_pixel;
if (morton_to_gl) {
std::memcpy(gl_ptr, tile_ptr, bytes_per_pixel);
} else {
std::memcpy(tile_ptr, gl_ptr, bytes_per_pixel);
}
}
}
}
template <bool morton_to_gl, PixelFormat format>
void MortonCopy(u32 stride, u32 block_height, u32 height, u8* gl_buffer, VAddr base, VAddr start,
VAddr end) {
@ -121,9 +106,9 @@ void MortonCopy(u32 stride, u32 block_height, u32 height, u8* gl_buffer, VAddr b
static constexpr std::array<void (*)(u32, u32, u32, u8*, VAddr, VAddr, VAddr),
SurfaceParams::MaxPixelFormat>
morton_to_gl_fns = {
MortonCopy<true, PixelFormat::ABGR8>,
MortonCopy<true, PixelFormat::B5G6R5>,
MortonCopy<true, PixelFormat::DXT1>,
MortonCopy<true, PixelFormat::ABGR8>, MortonCopy<true, PixelFormat::B5G6R5>,
MortonCopy<true, PixelFormat::DXT1>, MortonCopy<true, PixelFormat::DXT23>,
MortonCopy<true, PixelFormat::DXT45>,
};
static constexpr std::array<void (*)(u32, u32, u32, u8*, VAddr, VAddr, VAddr),
@ -131,7 +116,9 @@ static constexpr std::array<void (*)(u32, u32, u32, u8*, VAddr, VAddr, VAddr),
gl_to_morton_fns = {
MortonCopy<false, PixelFormat::ABGR8>,
MortonCopy<false, PixelFormat::B5G6R5>,
// TODO(Subv): Swizzling the DXT1 format is not yet supported
// TODO(Subv): Swizzling the DXT1/DXT23/DXT45 formats is not yet supported
nullptr,
nullptr,
nullptr,
};

18
src/video_core/renderer_opengl/gl_rasterizer_cache.h
View File

@ -55,6 +55,8 @@ struct SurfaceParams {
ABGR8 = 0,
B5G6R5 = 1,
DXT1 = 2,
DXT23 = 3,
DXT45 = 4,
Max,
Invalid = 255,
@ -84,9 +86,11 @@ struct SurfaceParams {
return 0;
constexpr std::array<unsigned int, MaxPixelFormat> bpp_table = {
32, // ABGR8
16, // B5G6R5
64, // DXT1
32, // ABGR8
16, // B5G6R5
64, // DXT1
128, // DXT23
128, // DXT45
};
ASSERT(static_cast<size_t>(format) < bpp_table.size());
@ -125,6 +129,10 @@ struct SurfaceParams {
return PixelFormat::B5G6R5;
case Tegra::Texture::TextureFormat::DXT1:
return PixelFormat::DXT1;
case Tegra::Texture::TextureFormat::DXT23:
return PixelFormat::DXT23;
case Tegra::Texture::TextureFormat::DXT45:
return PixelFormat::DXT45;
default:
NGLOG_CRITICAL(HW_GPU, "Unimplemented format={}", static_cast<u32>(format));
UNREACHABLE();
@ -140,6 +148,10 @@ struct SurfaceParams {
return Tegra::Texture::TextureFormat::B5G6R5;
case PixelFormat::DXT1:
return Tegra::Texture::TextureFormat::DXT1;
case PixelFormat::DXT23:
return Tegra::Texture::TextureFormat::DXT23;
case PixelFormat::DXT45:
return Tegra::Texture::TextureFormat::DXT45;
default:
UNREACHABLE();
}

10
src/video_core/textures/decoders.cpp
View File

@ -48,6 +48,10 @@ u32 BytesPerPixel(TextureFormat format) {
case TextureFormat::DXT1:
// In this case a 'pixel' actually refers to a 4x4 tile.
return 8;
case TextureFormat::DXT23:
case TextureFormat::DXT45:
// In this case a 'pixel' actually refers to a 4x4 tile.
return 16;
case TextureFormat::A8R8G8B8:
return 4;
case TextureFormat::B5G6R5:
@ -67,7 +71,9 @@ std::vector<u8> UnswizzleTexture(VAddr address, TextureFormat format, u32 width,
switch (format) {
case TextureFormat::DXT1:
// In the DXT1 format, each 4x4 tile is swizzled instead of just individual pixel values.
case TextureFormat::DXT23:
case TextureFormat::DXT45:
// In the DXT formats, each 4x4 tile is swizzled instead of just individual pixel values.
CopySwizzledData(width / 4, height / 4, bytes_per_pixel, bytes_per_pixel, data,
unswizzled_data.data(), true, block_height);
break;
@ -91,6 +97,8 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
// TODO(Subv): Implement.
switch (format) {
case TextureFormat::DXT1:
case TextureFormat::DXT23:
case TextureFormat::DXT45:
case TextureFormat::A8R8G8B8:
case TextureFormat::B5G6R5:
// TODO(Subv): For the time being just forward the same data without any decoding.