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Diffstat (limited to 'src/video_core/compatible_formats.cpp')
-rw-r--r-- | src/video_core/compatible_formats.cpp | 162 |
1 files changed, 162 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..01e5c26ae --- /dev/null +++ b/src/video_core/compatible_formats.cpp @@ -0,0 +1,162 @@ +// 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::RGBA32F, + PixelFormat::RGBA32UI, +}; +// Missing formats: +// PixelFormat::RGBA32I + +constexpr std::array VIEW_CLASS_96_BITS = { + PixelFormat::RGB32F, +}; +// Missing formats: +// PixelFormat::RGB32UI, +// PixelFormat::RGB32I, + +constexpr std::array VIEW_CLASS_64_BITS = { + PixelFormat::RGBA16F, PixelFormat::RG32F, PixelFormat::RGBA16UI, PixelFormat::RG32UI, + PixelFormat::RGBA16U, PixelFormat::RGBA16F, PixelFormat::RGBA16S, +}; +// Missing formats: +// PixelFormat::RGBA16I +// PixelFormat::RG32I + +// TODO: How should we handle 48 bits? + +constexpr std::array VIEW_CLASS_32_BITS = { + PixelFormat::RG16F, PixelFormat::R11FG11FB10F, PixelFormat::R32F, + PixelFormat::A2B10G10R10U, PixelFormat::RG16UI, PixelFormat::R32UI, + PixelFormat::RG16I, PixelFormat::R32I, PixelFormat::ABGR8U, + PixelFormat::RG16, PixelFormat::ABGR8S, PixelFormat::RG16S, + PixelFormat::RGBA8_SRGB, PixelFormat::E5B9G9R9F, PixelFormat::BGRA8, + PixelFormat::BGRA8_SRGB, +}; +// Missing formats: +// PixelFormat::RGBA8UI +// PixelFormat::RGBA8I +// PixelFormat::RGB10_A2_UI + +// TODO: How should we handle 24 bits? + +constexpr std::array VIEW_CLASS_16_BITS = { + PixelFormat::R16F, PixelFormat::RG8UI, PixelFormat::R16UI, PixelFormat::R16I, + PixelFormat::RG8U, PixelFormat::R16U, PixelFormat::RG8S, PixelFormat::R16S, +}; +// Missing formats: +// PixelFormat::RG8I + +constexpr std::array VIEW_CLASS_8_BITS = { + PixelFormat::R8UI, + PixelFormat::R8U, +}; +// Missing formats: +// PixelFormat::R8I +// PixelFormat::R8S + +constexpr std::array VIEW_CLASS_RGTC1_RED = { + PixelFormat::DXN1, +}; +// Missing formats: +// COMPRESSED_SIGNED_RED_RGTC1 + +constexpr std::array VIEW_CLASS_RGTC2_RG = { + PixelFormat::DXN2UNORM, + PixelFormat::DXN2SNORM, +}; + +constexpr std::array VIEW_CLASS_BPTC_UNORM = { + PixelFormat::BC7U, + PixelFormat::BC7U_SRGB, +}; + +constexpr std::array VIEW_CLASS_BPTC_FLOAT = { + PixelFormat::BC6H_SF16, + PixelFormat::BC6H_UF16, +}; + +// 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::RGBA32UI, PixelFormat::RGBA32F, PixelFormat::DXT23, + PixelFormat::DXT23_SRGB, PixelFormat::DXT45, PixelFormat::DXT45_SRGB, + PixelFormat::DXN2SNORM, PixelFormat::BC7U, PixelFormat::BC7U_SRGB, + PixelFormat::BC6H_SF16, PixelFormat::BC6H_UF16, +}; +// Missing formats: +// PixelFormat::RGBA32I +// COMPRESSED_RG_RGTC2 + +constexpr std::array COPY_CLASS_64_BITS = { + PixelFormat::RGBA16F, PixelFormat::RG32F, PixelFormat::RGBA16UI, PixelFormat::RG32UI, + PixelFormat::RGBA16U, PixelFormat::RGBA16S, PixelFormat::DXT1_SRGB, PixelFormat::DXT1, + +}; +// Missing formats: +// PixelFormat::RGBA16I +// PixelFormat::RG32I, +// 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(*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 |