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-rw-r--r-- | src/video_core/texture_cache/surface_params.h | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/src/video_core/texture_cache/surface_params.h b/src/video_core/texture_cache/surface_params.h new file mode 100644 index 000000000..358d6757c --- /dev/null +++ b/src/video_core/texture_cache/surface_params.h @@ -0,0 +1,286 @@ +// Copyright 2019 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <map> + +#include "common/alignment.h" +#include "common/bit_util.h" +#include "common/cityhash.h" +#include "common/common_types.h" +#include "video_core/engines/fermi_2d.h" +#include "video_core/engines/maxwell_3d.h" +#include "video_core/shader/shader_ir.h" +#include "video_core/surface.h" +#include "video_core/textures/decoders.h" + +namespace VideoCommon { + +using VideoCore::Surface::SurfaceCompression; + +class SurfaceParams { +public: + /// Creates SurfaceCachedParams from a texture configuration. + static SurfaceParams CreateForTexture(Core::System& system, + const Tegra::Texture::FullTextureInfo& config, + const VideoCommon::Shader::Sampler& entry); + + /// Creates SurfaceCachedParams for a depth buffer configuration. + static SurfaceParams CreateForDepthBuffer( + Core::System& system, u32 zeta_width, u32 zeta_height, Tegra::DepthFormat format, + u32 block_width, u32 block_height, u32 block_depth, + Tegra::Engines::Maxwell3D::Regs::InvMemoryLayout type); + + /// Creates SurfaceCachedParams from a framebuffer configuration. + static SurfaceParams CreateForFramebuffer(Core::System& system, std::size_t index); + + /// Creates SurfaceCachedParams from a Fermi2D surface configuration. + static SurfaceParams CreateForFermiCopySurface( + const Tegra::Engines::Fermi2D::Regs::Surface& config); + + std::size_t Hash() const { + return static_cast<std::size_t>( + Common::CityHash64(reinterpret_cast<const char*>(this), sizeof(*this))); + } + + bool operator==(const SurfaceParams& rhs) const; + + bool operator!=(const SurfaceParams& rhs) const { + return !operator==(rhs); + } + + std::size_t GetGuestSizeInBytes() const { + return GetInnerMemorySize(false, false, false); + } + + std::size_t GetHostSizeInBytes() const { + std::size_t host_size_in_bytes; + if (GetCompressionType() == SurfaceCompression::Converted) { + constexpr std::size_t rgb8_bpp = 4ULL; + // ASTC is uncompressed in software, in emulated as RGBA8 + host_size_in_bytes = 0; + for (u32 level = 0; level < num_levels; ++level) { + host_size_in_bytes += GetConvertedMipmapSize(level); + } + } else { + host_size_in_bytes = GetInnerMemorySize(true, false, false); + } + return host_size_in_bytes; + } + + u32 GetBlockAlignedWidth() const { + return Common::AlignUp(width, 64 / GetBytesPerPixel()); + } + + /// Returns the width of a given mipmap level. + u32 GetMipWidth(u32 level) const { + return std::max(1U, width >> level); + } + + /// Returns the height of a given mipmap level. + u32 GetMipHeight(u32 level) const { + return std::max(1U, height >> level); + } + + /// Returns the depth of a given mipmap level. + u32 GetMipDepth(u32 level) const { + return is_layered ? depth : std::max(1U, depth >> level); + } + + /// Returns the block height of a given mipmap level. + u32 GetMipBlockHeight(u32 level) const; + + /// Returns the block depth of a given mipmap level. + u32 GetMipBlockDepth(u32 level) const; + + /// Returns the best possible row/pitch alignment for the surface. + u32 GetRowAlignment(u32 level) const { + const u32 bpp = + GetCompressionType() == SurfaceCompression::Converted ? 4 : GetBytesPerPixel(); + return 1U << Common::CountTrailingZeroes32(GetMipWidth(level) * bpp); + } + + /// Returns the offset in bytes in guest memory of a given mipmap level. + std::size_t GetGuestMipmapLevelOffset(u32 level) const; + + /// Returns the offset in bytes in host memory (linear) of a given mipmap level. + std::size_t GetHostMipmapLevelOffset(u32 level) const; + + /// Returns the offset in bytes in host memory (linear) of a given mipmap level + /// for a texture that is converted in host gpu. + std::size_t GetConvertedMipmapOffset(u32 level) const; + + /// Returns the size in bytes in guest memory of a given mipmap level. + std::size_t GetGuestMipmapSize(u32 level) const { + return GetInnerMipmapMemorySize(level, false, false); + } + + /// Returns the size in bytes in host memory (linear) of a given mipmap level. + std::size_t GetHostMipmapSize(u32 level) const { + return GetInnerMipmapMemorySize(level, true, false) * GetNumLayers(); + } + + std::size_t GetConvertedMipmapSize(u32 level) const; + + /// Returns the size of a layer in bytes in guest memory. + std::size_t GetGuestLayerSize() const { + return GetLayerSize(false, false); + } + + /// Returns the size of a layer in bytes in host memory for a given mipmap level. + std::size_t GetHostLayerSize(u32 level) const { + ASSERT(target != VideoCore::Surface::SurfaceTarget::Texture3D); + return GetInnerMipmapMemorySize(level, true, false); + } + + /// Returns the max possible mipmap that the texture can have in host gpu + u32 MaxPossibleMipmap() const { + const u32 max_mipmap_w = Common::Log2Ceil32(width) + 1U; + const u32 max_mipmap_h = Common::Log2Ceil32(height) + 1U; + const u32 max_mipmap = std::max(max_mipmap_w, max_mipmap_h); + if (target != VideoCore::Surface::SurfaceTarget::Texture3D) + return max_mipmap; + return std::max(max_mipmap, Common::Log2Ceil32(depth) + 1U); + } + + /// Returns if the guest surface is a compressed surface. + bool IsCompressed() const { + return GetDefaultBlockHeight() > 1 || GetDefaultBlockWidth() > 1; + } + + /// Returns the default block width. + u32 GetDefaultBlockWidth() const { + return VideoCore::Surface::GetDefaultBlockWidth(pixel_format); + } + + /// Returns the default block height. + u32 GetDefaultBlockHeight() const { + return VideoCore::Surface::GetDefaultBlockHeight(pixel_format); + } + + /// Returns the bits per pixel. + u32 GetBitsPerPixel() const { + return VideoCore::Surface::GetFormatBpp(pixel_format); + } + + /// Returns the bytes per pixel. + u32 GetBytesPerPixel() const { + return VideoCore::Surface::GetBytesPerPixel(pixel_format); + } + + /// Returns true if the pixel format is a depth and/or stencil format. + bool IsPixelFormatZeta() const { + return pixel_format >= VideoCore::Surface::PixelFormat::MaxColorFormat && + pixel_format < VideoCore::Surface::PixelFormat::MaxDepthStencilFormat; + } + + /// Returns how the compression should be handled for this texture. + SurfaceCompression GetCompressionType() const { + return VideoCore::Surface::GetFormatCompressionType(pixel_format); + } + + /// Returns is the surface is a TextureBuffer type of surface. + bool IsBuffer() const { + return target == VideoCore::Surface::SurfaceTarget::TextureBuffer; + } + + /// Returns the debug name of the texture for use in graphic debuggers. + std::string TargetName() const; + + // Helper used for out of class size calculations + static std::size_t AlignLayered(const std::size_t out_size, const u32 block_height, + const u32 block_depth) { + return Common::AlignBits(out_size, + Tegra::Texture::GetGOBSizeShift() + block_height + block_depth); + } + + /// Converts a width from a type of surface into another. This helps represent the + /// equivalent value between compressed/non-compressed textures. + static u32 ConvertWidth(u32 width, VideoCore::Surface::PixelFormat pixel_format_from, + VideoCore::Surface::PixelFormat pixel_format_to) { + const u32 bw1 = VideoCore::Surface::GetDefaultBlockWidth(pixel_format_from); + const u32 bw2 = VideoCore::Surface::GetDefaultBlockWidth(pixel_format_to); + return (width * bw2 + bw1 - 1) / bw1; + } + + /// Converts a height from a type of surface into another. This helps represent the + /// equivalent value between compressed/non-compressed textures. + static u32 ConvertHeight(u32 height, VideoCore::Surface::PixelFormat pixel_format_from, + VideoCore::Surface::PixelFormat pixel_format_to) { + const u32 bh1 = VideoCore::Surface::GetDefaultBlockHeight(pixel_format_from); + const u32 bh2 = VideoCore::Surface::GetDefaultBlockHeight(pixel_format_to); + return (height * bh2 + bh1 - 1) / bh1; + } + + // Finds the maximun possible width between 2 2D layers of different formats + static u32 IntersectWidth(const SurfaceParams& src_params, const SurfaceParams& dst_params, + const u32 src_level, const u32 dst_level) { + const u32 bw1 = src_params.GetDefaultBlockWidth(); + const u32 bw2 = dst_params.GetDefaultBlockWidth(); + const u32 t_src_width = (src_params.GetMipWidth(src_level) * bw2 + bw1 - 1) / bw1; + const u32 t_dst_width = (dst_params.GetMipWidth(dst_level) * bw1 + bw2 - 1) / bw2; + return std::min(t_src_width, t_dst_width); + } + + // Finds the maximun possible height between 2 2D layers of different formats + static u32 IntersectHeight(const SurfaceParams& src_params, const SurfaceParams& dst_params, + const u32 src_level, const u32 dst_level) { + const u32 bh1 = src_params.GetDefaultBlockHeight(); + const u32 bh2 = dst_params.GetDefaultBlockHeight(); + const u32 t_src_height = (src_params.GetMipHeight(src_level) * bh2 + bh1 - 1) / bh1; + const u32 t_dst_height = (dst_params.GetMipHeight(dst_level) * bh1 + bh2 - 1) / bh2; + return std::min(t_src_height, t_dst_height); + } + + bool is_tiled; + bool srgb_conversion; + bool is_layered; + u32 block_width; + u32 block_height; + u32 block_depth; + u32 tile_width_spacing; + u32 width; + u32 height; + u32 depth; + u32 pitch; + u32 num_levels; + u32 emulated_levels; + VideoCore::Surface::PixelFormat pixel_format; + VideoCore::Surface::ComponentType component_type; + VideoCore::Surface::SurfaceType type; + VideoCore::Surface::SurfaceTarget target; + +private: + /// Returns the size of a given mipmap level inside a layer. + std::size_t GetInnerMipmapMemorySize(u32 level, bool as_host_size, bool uncompressed) const; + + /// Returns the size of all mipmap levels and aligns as needed. + std::size_t GetInnerMemorySize(bool as_host_size, bool layer_only, bool uncompressed) const { + return GetLayerSize(as_host_size, uncompressed) * (layer_only ? 1U : depth); + } + + /// Returns the size of a layer + std::size_t GetLayerSize(bool as_host_size, bool uncompressed) const; + + std::size_t GetNumLayers() const { + return is_layered ? depth : 1; + } + + /// Returns true if these parameters are from a layered surface. + bool IsLayered() const; +}; + +} // namespace VideoCommon + +namespace std { + +template <> +struct hash<VideoCommon::SurfaceParams> { + std::size_t operator()(const VideoCommon::SurfaceParams& k) const noexcept { + return k.Hash(); + } +}; + +} // namespace std |