369 lines
12 KiB
C++
369 lines
12 KiB
C++
// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <memory>
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#include <set>
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#include <tuple>
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#ifdef __GNUC__
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
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#endif
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#include <boost/icl/interval_map.hpp>
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#include <boost/icl/interval_set.hpp>
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#ifdef __GNUC__
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#pragma GCC diagnostic pop
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#endif
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#include <glad/glad.h>
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#include "common/assert.h"
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#include "common/common_funcs.h"
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#include "common/common_types.h"
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#include "common/math_util.h"
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#include "core/hw/gpu.h"
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#include "video_core/regs_framebuffer.h"
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#include "video_core/regs_texturing.h"
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#include "video_core/renderer_opengl/gl_resource_manager.h"
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struct CachedSurface;
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using Surface = std::shared_ptr<CachedSurface>;
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using SurfaceSet = std::set<Surface>;
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using SurfaceRegions = boost::icl::interval_set<PAddr>;
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using SurfaceMap = boost::icl::interval_map<PAddr, Surface>;
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using SurfaceCache = boost::icl::interval_map<PAddr, SurfaceSet>;
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using SurfaceInterval = SurfaceCache::interval_type;
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static_assert(std::is_same<SurfaceRegions::interval_type, SurfaceCache::interval_type>() &&
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std::is_same<SurfaceMap::interval_type, SurfaceCache::interval_type>(),
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"incorrect interval types");
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using SurfaceRect_Tuple = std::tuple<Surface, MathUtil::Rectangle<u32>>;
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using SurfaceSurfaceRect_Tuple = std::tuple<Surface, Surface, MathUtil::Rectangle<u32>>;
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using PageMap = boost::icl::interval_map<u32, int>;
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enum class ScaleMatch {
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Exact, // only accept same res scale
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Upscale, // only allow higher scale than params
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Ignore // accept every scaled res
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};
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struct SurfaceParams {
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enum class PixelFormat {
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// First 5 formats are shared between textures and color buffers
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RGBA8 = 0,
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RGB8 = 1,
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RGB5A1 = 2,
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RGB565 = 3,
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RGBA4 = 4,
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// Texture-only formats
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IA8 = 5,
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RG8 = 6,
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I8 = 7,
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A8 = 8,
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IA4 = 9,
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I4 = 10,
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A4 = 11,
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ETC1 = 12,
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ETC1A4 = 13,
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// Depth buffer-only formats
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D16 = 14,
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// gap
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D24 = 16,
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D24S8 = 17,
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Invalid = 255,
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};
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enum class SurfaceType {
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Color = 0,
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Texture = 1,
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Depth = 2,
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DepthStencil = 3,
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Fill = 4,
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Invalid = 5
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};
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static constexpr unsigned int GetFormatBpp(PixelFormat format) {
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constexpr std::array<unsigned int, 18> bpp_table = {
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32, // RGBA8
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24, // RGB8
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16, // RGB5A1
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16, // RGB565
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16, // RGBA4
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16, // IA8
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16, // RG8
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8, // I8
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8, // A8
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8, // IA4
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4, // I4
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4, // A4
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4, // ETC1
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8, // ETC1A4
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16, // D16
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0,
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24, // D24
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32, // D24S8
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};
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assert(static_cast<size_t>(format) < bpp_table.size());
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return bpp_table[static_cast<size_t>(format)];
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}
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unsigned int GetFormatBpp() const {
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return GetFormatBpp(pixel_format);
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}
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static PixelFormat PixelFormatFromTextureFormat(Pica::TexturingRegs::TextureFormat format) {
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return ((unsigned int)format < 14) ? (PixelFormat)format : PixelFormat::Invalid;
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}
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static PixelFormat PixelFormatFromColorFormat(Pica::FramebufferRegs::ColorFormat format) {
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return ((unsigned int)format < 5) ? (PixelFormat)format : PixelFormat::Invalid;
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}
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static PixelFormat PixelFormatFromDepthFormat(Pica::FramebufferRegs::DepthFormat format) {
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return ((unsigned int)format < 4) ? (PixelFormat)((unsigned int)format + 14)
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: PixelFormat::Invalid;
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}
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static PixelFormat PixelFormatFromGPUPixelFormat(GPU::Regs::PixelFormat format) {
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switch (format) {
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// RGB565 and RGB5A1 are switched in PixelFormat compared to ColorFormat
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case GPU::Regs::PixelFormat::RGB565:
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return PixelFormat::RGB565;
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case GPU::Regs::PixelFormat::RGB5A1:
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return PixelFormat::RGB5A1;
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default:
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return ((unsigned int)format < 5) ? (PixelFormat)format : PixelFormat::Invalid;
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}
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}
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static bool CheckFormatsBlittable(PixelFormat pixel_format_a, PixelFormat pixel_format_b) {
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SurfaceType a_type = GetFormatType(pixel_format_a);
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SurfaceType b_type = GetFormatType(pixel_format_b);
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if ((a_type == SurfaceType::Color || a_type == SurfaceType::Texture) &&
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(b_type == SurfaceType::Color || b_type == SurfaceType::Texture)) {
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return true;
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}
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if (a_type == SurfaceType::Depth && b_type == SurfaceType::Depth) {
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return true;
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}
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if (a_type == SurfaceType::DepthStencil && b_type == SurfaceType::DepthStencil) {
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return true;
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}
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return false;
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}
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static constexpr SurfaceType GetFormatType(PixelFormat pixel_format) {
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if ((unsigned int)pixel_format < 5) {
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return SurfaceType::Color;
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}
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if ((unsigned int)pixel_format < 14) {
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return SurfaceType::Texture;
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}
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if (pixel_format == PixelFormat::D16 || pixel_format == PixelFormat::D24) {
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return SurfaceType::Depth;
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}
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if (pixel_format == PixelFormat::D24S8) {
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return SurfaceType::DepthStencil;
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}
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return SurfaceType::Invalid;
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}
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/// Update the params "size", "end" and "type" from the already set "addr", "width", "height"
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/// and "pixel_format"
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void UpdateParams() {
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if (stride == 0) {
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stride = width;
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}
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type = GetFormatType(pixel_format);
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size = !is_tiled ? BytesInPixels(stride * (height - 1) + width)
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: BytesInPixels(stride * 8 * (height / 8 - 1) + width * 8);
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end = addr + size;
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}
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SurfaceInterval GetInterval() const {
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return SurfaceInterval::right_open(addr, end);
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}
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// Returns the outer rectangle containing "interval"
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SurfaceParams FromInterval(SurfaceInterval interval) const;
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SurfaceInterval GetSubRectInterval(MathUtil::Rectangle<u32> unscaled_rect) const;
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// Returns the region of the biggest valid rectange within interval
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SurfaceInterval GetCopyableInterval(const Surface& src_surface) const;
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u32 GetScaledWidth() const {
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return width * res_scale;
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}
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u32 GetScaledHeight() const {
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return height * res_scale;
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}
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MathUtil::Rectangle<u32> GetRect() const {
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return {0, height, width, 0};
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}
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MathUtil::Rectangle<u32> GetScaledRect() const {
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return {0, GetScaledHeight(), GetScaledWidth(), 0};
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}
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u32 PixelsInBytes(u32 size) const {
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return size * CHAR_BIT / GetFormatBpp(pixel_format);
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}
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u32 BytesInPixels(u32 pixels) const {
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return pixels * GetFormatBpp(pixel_format) / CHAR_BIT;
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}
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bool ExactMatch(const SurfaceParams& other_surface) const;
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bool CanSubRect(const SurfaceParams& sub_surface) const;
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bool CanExpand(const SurfaceParams& expanded_surface) const;
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bool CanTexCopy(const SurfaceParams& texcopy_params) const;
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MathUtil::Rectangle<u32> GetSubRect(const SurfaceParams& sub_surface) const;
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MathUtil::Rectangle<u32> GetScaledSubRect(const SurfaceParams& sub_surface) const;
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PAddr addr = 0;
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PAddr end = 0;
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u32 size = 0;
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u32 width = 0;
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u32 height = 0;
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u32 stride = 0;
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u16 res_scale = 1;
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bool is_tiled = false;
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PixelFormat pixel_format = PixelFormat::Invalid;
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SurfaceType type = SurfaceType::Invalid;
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};
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struct CachedSurface : SurfaceParams {
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bool CanFill(const SurfaceParams& dest_surface, SurfaceInterval fill_interval) const;
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bool CanCopy(const SurfaceParams& dest_surface, SurfaceInterval copy_interval) const;
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bool IsRegionValid(SurfaceInterval interval) const {
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return (invalid_regions.find(interval) == invalid_regions.end());
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}
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bool IsSurfaceFullyInvalid() const {
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return (invalid_regions & GetInterval()) == SurfaceRegions(GetInterval());
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}
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bool registered = false;
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SurfaceRegions invalid_regions;
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u32 fill_size = 0; /// Number of bytes to read from fill_data
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std::array<u8, 4> fill_data;
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OGLTexture texture;
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static constexpr unsigned int GetGLBytesPerPixel(PixelFormat format) {
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// OpenGL needs 4 bpp alignment for D24 since using GL_UNSIGNED_INT as type
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return format == PixelFormat::Invalid
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? 0
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: (format == PixelFormat::D24 || GetFormatType(format) == SurfaceType::Texture)
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? 4
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: SurfaceParams::GetFormatBpp(format) / 8;
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}
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std::unique_ptr<u8[]> gl_buffer;
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size_t gl_buffer_size = 0;
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// Read/Write data in 3DS memory to/from gl_buffer
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void LoadGLBuffer(PAddr load_start, PAddr load_end);
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void FlushGLBuffer(PAddr flush_start, PAddr flush_end);
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// Upload/Download data in gl_buffer in/to this surface's texture
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void UploadGLTexture(const MathUtil::Rectangle<u32>& rect, GLuint read_fb_handle,
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GLuint draw_fb_handle);
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void DownloadGLTexture(const MathUtil::Rectangle<u32>& rect, GLuint read_fb_handle,
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GLuint draw_fb_handle);
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};
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class RasterizerCacheOpenGL : NonCopyable {
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public:
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RasterizerCacheOpenGL();
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~RasterizerCacheOpenGL();
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/// Blit one surface's texture to another
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bool BlitSurfaces(const Surface& src_surface, const MathUtil::Rectangle<u32>& src_rect,
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const Surface& dst_surface, const MathUtil::Rectangle<u32>& dst_rect);
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/// Copy one surface's region to another
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void CopySurface(const Surface& src_surface, const Surface& dst_surface,
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SurfaceInterval copy_interval);
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/// Load a texture from 3DS memory to OpenGL and cache it (if not already cached)
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Surface GetSurface(const SurfaceParams& params, ScaleMatch match_res_scale,
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bool load_if_create);
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/// Attempt to find a subrect (resolution scaled) of a surface, otherwise loads a texture from
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/// 3DS memory to OpenGL and caches it (if not already cached)
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SurfaceRect_Tuple GetSurfaceSubRect(const SurfaceParams& params, ScaleMatch match_res_scale,
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bool load_if_create);
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/// Get a surface based on the texture configuration
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Surface GetTextureSurface(const Pica::TexturingRegs::FullTextureConfig& config);
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/// Get the color and depth surfaces based on the framebuffer configuration
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SurfaceSurfaceRect_Tuple GetFramebufferSurfaces(bool using_color_fb, bool using_depth_fb,
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const MathUtil::Rectangle<s32>& viewport_rect);
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/// Get a surface that matches the fill config
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Surface GetFillSurface(const GPU::Regs::MemoryFillConfig& config);
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/// Get a surface that matches a "texture copy" display transfer config
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SurfaceRect_Tuple GetTexCopySurface(const SurfaceParams& params);
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/// Write any cached resources overlapping the region back to memory (if dirty)
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void FlushRegion(PAddr addr, u32 size, Surface flush_surface = nullptr);
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/// Mark region as being invalidated by region_owner (nullptr if 3DS memory)
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void InvalidateRegion(PAddr addr, u32 size, const Surface& region_owner);
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/// Flush all cached resources tracked by this cache manager
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void FlushAll();
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private:
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void DuplicateSurface(const Surface& src_surface, const Surface& dest_surface);
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/// Update surface's texture for given region when necessary
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void ValidateSurface(const Surface& surface, PAddr addr, u32 size);
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/// Create a new surface
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Surface CreateSurface(const SurfaceParams& params);
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/// Register surface into the cache
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void RegisterSurface(const Surface& surface);
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/// Remove surface from the cache
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void UnregisterSurface(const Surface& surface);
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/// Increase/decrease the number of surface in pages touching the specified region
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void UpdatePagesCachedCount(PAddr addr, u32 size, int delta);
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SurfaceCache surface_cache;
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PageMap cached_pages;
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SurfaceMap dirty_regions;
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SurfaceSet remove_surfaces;
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OGLFramebuffer read_framebuffer;
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OGLFramebuffer draw_framebuffer;
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};
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