dolphin/Source/Core/VideoBackends/Vulkan/TextureConverter.h

101 lines
4.1 KiB
C++

// Copyright 2016 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <memory>
#include "Common/CommonTypes.h"
#include "VideoBackends/Vulkan/StreamBuffer.h"
#include "VideoBackends/Vulkan/TextureCache.h"
#include "VideoCommon/BPMemory.h"
#include "VideoCommon/TextureDecoder.h"
#include "VideoCommon/VideoCommon.h"
namespace Vulkan
{
class StagingTexture2D;
class Texture2D;
class TextureConverter
{
public:
TextureConverter();
~TextureConverter();
bool Initialize();
// Applies palette to dst_entry, using indices from src_entry.
void ConvertTexture(TextureCache::TCacheEntry* dst_entry, TextureCache::TCacheEntry* src_entry,
VkRenderPass render_pass, const void* palette, TlutFormat palette_format);
// Uses an encoding shader to copy src_texture to dest_ptr.
// NOTE: Executes the current command buffer.
void EncodeTextureToMemory(VkImageView src_texture, u8* dest_ptr, u32 format, u32 native_width,
u32 bytes_per_row, u32 num_blocks_y, u32 memory_stride,
bool is_depth_copy, bool is_intensity, int scale_by_half,
const EFBRectangle& source);
// Encodes texture to guest memory in XFB (YUYV) format.
void EncodeTextureToMemoryYUYV(void* dst_ptr, u32 dst_width, u32 dst_stride, u32 dst_height,
Texture2D* src_texture, const MathUtil::Rectangle<int>& src_rect);
// Decodes data from guest memory in XFB (YUYV) format to a RGBA format texture on the GPU.
void DecodeYUYVTextureFromMemory(TextureCache::TCacheEntry* dst_texture, const void* src_ptr,
u32 src_width, u32 src_stride, u32 src_height);
private:
static const u32 NUM_TEXTURE_ENCODING_SHADERS = 64;
static const u32 ENCODING_TEXTURE_WIDTH = EFB_WIDTH * 4;
static const u32 ENCODING_TEXTURE_HEIGHT = 1024;
static const VkFormat ENCODING_TEXTURE_FORMAT = VK_FORMAT_B8G8R8A8_UNORM;
static const size_t NUM_PALETTE_CONVERSION_SHADERS = 3;
bool CreateTexelBuffer();
VkBufferView CreateTexelBufferView(VkFormat format) const;
bool CompilePaletteConversionShaders();
bool CompileEncodingShaders();
bool CreateEncodingRenderPass();
bool CreateEncodingTexture();
bool CreateEncodingDownloadTexture();
bool CompileYUYVConversionShaders();
// Allocates storage in the texel command buffer of the specified size.
// If the buffer does not have enough space, executes the current command buffer and tries again.
// If this is done, g_command_buffer_mgr->GetCurrentCommandBuffer() will return a different value,
// so it always should be re-obtained after calling this method.
// Once the data copy is done, call m_texel_buffer->CommitMemory(size).
bool ReserveTexelBufferStorage(size_t size, size_t alignment);
// Returns the command buffer that the texture conversion should occur in for the given texture.
// This can be the initialization/copy command buffer, or the drawing command buffer.
VkCommandBuffer GetCommandBufferForTextureConversion(const TextureCache::TCacheEntry* src_entry);
// Shared between conversion types
std::unique_ptr<StreamBuffer> m_texel_buffer;
VkBufferView m_texel_buffer_view_r16_uint = VK_NULL_HANDLE;
VkBufferView m_texel_buffer_view_rgba8_unorm = VK_NULL_HANDLE;
size_t m_texel_buffer_size = 0;
// Palette conversion - taking an indexed texture and applying palette
std::array<VkShaderModule, NUM_PALETTE_CONVERSION_SHADERS> m_palette_conversion_shaders = {};
// Texture encoding - RGBA8->GX format in memory
std::array<VkShaderModule, NUM_TEXTURE_ENCODING_SHADERS> m_encoding_shaders = {};
VkRenderPass m_encoding_render_pass = VK_NULL_HANDLE;
std::unique_ptr<Texture2D> m_encoding_render_texture;
VkFramebuffer m_encoding_render_framebuffer = VK_NULL_HANDLE;
std::unique_ptr<StagingTexture2D> m_encoding_download_texture;
// XFB encoding/decoding shaders
VkShaderModule m_rgb_to_yuyv_shader = VK_NULL_HANDLE;
VkShaderModule m_yuyv_to_rgb_shader = VK_NULL_HANDLE;
};
} // namespace Vulkan