diff options
Diffstat (limited to 'src/video_core/compatible_formats.cpp')
| -rw-r--r-- | src/video_core/compatible_formats.cpp | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/video_core/compatible_formats.cpp b/src/video_core/compatible_formats.cpp new file mode 100644 index 000000000..b06c32c84 --- /dev/null +++ b/src/video_core/compatible_formats.cpp @@ -0,0 +1,155 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <array> +#include <bitset> +#include <cstddef> + +#include "video_core/compatible_formats.h" +#include "video_core/surface.h" + +namespace VideoCore::Surface { + +namespace { + +// Compatibility table taken from Table 3.X.2 in: +// https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_texture_view.txt + +constexpr std::array VIEW_CLASS_128_BITS = { + PixelFormat::R32G32B32A32_FLOAT, + PixelFormat::R32G32B32A32_UINT, + PixelFormat::R32G32B32A32_SINT, +}; + +constexpr std::array VIEW_CLASS_96_BITS = { + PixelFormat::R32G32B32_FLOAT, +}; +// Missing formats: +// PixelFormat::RGB32UI, +// PixelFormat::RGB32I, + +constexpr std::array VIEW_CLASS_64_BITS = { + PixelFormat::R32G32_FLOAT, PixelFormat::R32G32_UINT, + PixelFormat::R32G32_SINT, PixelFormat::R16G16B16A16_FLOAT, + PixelFormat::R16G16B16A16_UNORM, PixelFormat::R16G16B16A16_SNORM, + PixelFormat::R16G16B16A16_UINT, PixelFormat::R16G16B16A16_SINT, +}; + +// TODO: How should we handle 48 bits? + +constexpr std::array VIEW_CLASS_32_BITS = { + PixelFormat::R16G16_FLOAT, PixelFormat::B10G11R11_FLOAT, PixelFormat::R32_FLOAT, + PixelFormat::A2B10G10R10_UNORM, PixelFormat::R16G16_UINT, PixelFormat::R32_UINT, + PixelFormat::R16G16_SINT, PixelFormat::R32_SINT, PixelFormat::A8B8G8R8_UNORM, + PixelFormat::R16G16_UNORM, PixelFormat::A8B8G8R8_SNORM, PixelFormat::R16G16_SNORM, + PixelFormat::A8B8G8R8_SRGB, PixelFormat::E5B9G9R9_FLOAT, PixelFormat::B8G8R8A8_UNORM, + PixelFormat::B8G8R8A8_SRGB, PixelFormat::A8B8G8R8_UINT, PixelFormat::A8B8G8R8_SINT, + PixelFormat::A2B10G10R10_UINT, +}; + +// TODO: How should we handle 24 bits? + +constexpr std::array VIEW_CLASS_16_BITS = { + PixelFormat::R16_FLOAT, PixelFormat::R8G8_UINT, PixelFormat::R16_UINT, + PixelFormat::R16_SINT, PixelFormat::R8G8_UNORM, PixelFormat::R16_UNORM, + PixelFormat::R8G8_SNORM, PixelFormat::R16_SNORM, PixelFormat::R8G8_SINT, +}; + +constexpr std::array VIEW_CLASS_8_BITS = { + PixelFormat::R8_UINT, + PixelFormat::R8_UNORM, + PixelFormat::R8_SINT, + PixelFormat::R8_SNORM, +}; + +constexpr std::array VIEW_CLASS_RGTC1_RED = { + PixelFormat::BC4_UNORM, + PixelFormat::BC4_SNORM, +}; + +constexpr std::array VIEW_CLASS_RGTC2_RG = { + PixelFormat::BC5_UNORM, + PixelFormat::BC5_SNORM, +}; + +constexpr std::array VIEW_CLASS_BPTC_UNORM = { + PixelFormat::BC7_UNORM, + PixelFormat::BC7_SRGB, +}; + +constexpr std::array VIEW_CLASS_BPTC_FLOAT = { + PixelFormat::BC6H_SFLOAT, + PixelFormat::BC6H_UFLOAT, +}; + +// Compatibility table taken from Table 4.X.1 in: +// https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_copy_image.txt + +constexpr std::array COPY_CLASS_128_BITS = { + PixelFormat::R32G32B32A32_UINT, PixelFormat::R32G32B32A32_FLOAT, PixelFormat::R32G32B32A32_SINT, + PixelFormat::BC2_UNORM, PixelFormat::BC2_SRGB, PixelFormat::BC3_UNORM, + PixelFormat::BC3_SRGB, PixelFormat::BC5_UNORM, PixelFormat::BC5_SNORM, + PixelFormat::BC7_UNORM, PixelFormat::BC7_SRGB, PixelFormat::BC6H_SFLOAT, + PixelFormat::BC6H_UFLOAT, +}; +// Missing formats: +// PixelFormat::RGBA32I +// COMPRESSED_RG_RGTC2 + +constexpr std::array COPY_CLASS_64_BITS = { + PixelFormat::R16G16B16A16_FLOAT, PixelFormat::R16G16B16A16_UINT, + PixelFormat::R16G16B16A16_UNORM, PixelFormat::R16G16B16A16_SNORM, + PixelFormat::R16G16B16A16_SINT, PixelFormat::R32G32_UINT, + PixelFormat::R32G32_FLOAT, PixelFormat::R32G32_SINT, + PixelFormat::BC1_RGBA_UNORM, PixelFormat::BC1_RGBA_SRGB, +}; +// Missing formats: +// COMPRESSED_RGB_S3TC_DXT1_EXT +// COMPRESSED_SRGB_S3TC_DXT1_EXT +// COMPRESSED_RGBA_S3TC_DXT1_EXT +// COMPRESSED_SIGNED_RED_RGTC1 + +void Enable(FormatCompatibility::Table& compatiblity, size_t format_a, size_t format_b) { + compatiblity[format_a][format_b] = true; + compatiblity[format_b][format_a] = true; +} + +void Enable(FormatCompatibility::Table& compatibility, PixelFormat format_a, PixelFormat format_b) { + Enable(compatibility, static_cast<size_t>(format_a), static_cast<size_t>(format_b)); +} + +template <typename Range> +void EnableRange(FormatCompatibility::Table& compatibility, const Range& range) { + for (auto it_a = range.begin(); it_a != range.end(); ++it_a) { + for (auto it_b = it_a; it_b != range.end(); ++it_b) { + Enable(compatibility, *it_a, *it_b); + } + } +} + +} // Anonymous namespace + +FormatCompatibility::FormatCompatibility() { + for (size_t i = 0; i < MaxPixelFormat; ++i) { + // Identity is allowed + Enable(view, i, i); + } + + EnableRange(view, VIEW_CLASS_128_BITS); + EnableRange(view, VIEW_CLASS_96_BITS); + EnableRange(view, VIEW_CLASS_64_BITS); + EnableRange(view, VIEW_CLASS_32_BITS); + EnableRange(view, VIEW_CLASS_16_BITS); + EnableRange(view, VIEW_CLASS_8_BITS); + EnableRange(view, VIEW_CLASS_RGTC1_RED); + EnableRange(view, VIEW_CLASS_RGTC2_RG); + EnableRange(view, VIEW_CLASS_BPTC_UNORM); + EnableRange(view, VIEW_CLASS_BPTC_FLOAT); + + copy = view; + EnableRange(copy, COPY_CLASS_128_BITS); + EnableRange(copy, COPY_CLASS_64_BITS); +} + +} // namespace VideoCore::Surface |