video_core: Rewrite the texture cache

The current texture cache has several points that hurt maintainability
and performance. It's easy to break unrelated parts of the cache
when doing minor changes. The cache can easily forget valuable
information about the cached textures by CPU writes or simply by its
normal usage.The current texture cache has several points that hurt
maintainability and performance. It's easy to break unrelated parts
of the cache when doing minor changes. The cache can easily forget
valuable information about the cached textures by CPU writes or simply
by its normal usage.

This commit aims to address those issues.

1 files changed, 0 insertions, 294 deletions

diff --git a/src/video_core/texture_cache/surface_params.h b/src/video_core/texture_cache/surface_params.h
deleted file mode 100644
index 4466c3c34..000000000
--- a/src/video_core/texture_cache/surface_params.h
+++ /dev/null
@@ -1,294 +0,0 @@
-// Copyright 2019 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <utility>
-
-#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 {
-
-class FormatLookupTable;
-
-class SurfaceParams {
-public:
-    /// Creates SurfaceCachedParams from a texture configuration.
-    static SurfaceParams CreateForTexture(const FormatLookupTable& lookup_table,
-                                          const Tegra::Texture::TICEntry& tic,
-                                          const VideoCommon::Shader::Sampler& entry);
-
-    /// Creates SurfaceCachedParams from an image configuration.
-    static SurfaceParams CreateForImage(const FormatLookupTable& lookup_table,
-                                        const Tegra::Texture::TICEntry& tic,
-                                        const VideoCommon::Shader::Image& entry);
-
-    /// Creates SurfaceCachedParams for a depth buffer configuration.
-    static SurfaceParams CreateForDepthBuffer(Tegra::Engines::Maxwell3D& maxwell3d);
-
-    /// Creates SurfaceCachedParams from a framebuffer configuration.
-    static SurfaceParams CreateForFramebuffer(Tegra::Engines::Maxwell3D& maxwell3d,
-                                              std::size_t index);
-
-    /// Creates SurfaceCachedParams from a Fermi2D surface configuration.
-    static SurfaceParams CreateForFermiCopySurface(
-        const Tegra::Engines::Fermi2D::Regs::Surface& config);
-
-    /// Obtains the texture target from a shader's sampler entry.
-    static VideoCore::Surface::SurfaceTarget ExpectedTarget(
-        const VideoCommon::Shader::Sampler& entry);
-
-    /// Obtains the texture target from a shader's sampler entry.
-    static VideoCore::Surface::SurfaceTarget ExpectedTarget(
-        const VideoCommon::Shader::Image& entry);
-
-    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(bool is_converted) const {
-        if (!is_converted) {
-            return GetInnerMemorySize(true, false, false);
-        }
-        // ASTC is uncompressed in software, in emulated as RGBA8
-        std::size_t host_size_in_bytes = 0;
-        for (u32 level = 0; level < num_levels; ++level) {
-            host_size_in_bytes += GetConvertedMipmapSize(level) * GetNumLayers();
-        }
-        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, bool is_converted) const {
-        const u32 bpp = is_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, bool is_converted) 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;
-
-    /// Get this texture Tegra Block size in guest memory layout
-    u32 GetBlockSize() const;
-
-    /// Get X, Y coordinates max sizes of a single block.
-    std::pair<u32, u32> GetBlockXY() const;
-
-    /// Get the offset in x, y, z coordinates from a memory offset
-    std::tuple<u32, u32, u32> GetBlockOffsetXYZ(u32 offset) 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 is the surface is a TextureBuffer type of surface.
-    bool IsBuffer() const {
-        return target == VideoCore::Surface::SurfaceTarget::TextureBuffer;
-    }
-
-    /// Returns the number of layers in the surface.
-    std::size_t GetNumLayers() const {
-        return is_layered ? depth : 1;
-    }
-
-    /// 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::GOB_SIZE_SHIFT + 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::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 : (is_layered ? depth : 1U));
-    }
-
-    /// Returns the size of a layer
-    std::size_t GetLayerSize(bool as_host_size, bool uncompressed) const;
-
-    /// 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