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Vulkan: Implement compute-shader based GPU texture decoding

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This commit is contained in:
Stenzek
2016-12-09 22:23:07 +10:00
parent 5fbc63fbcf
commit 739aced97c
5 changed files with 226 additions and 2 deletions
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27
Source/Core/VideoBackends/Vulkan/TextureConverter.h
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@ -5,11 +5,14 @@
#pragma once
#include <array>
#include <map>
#include <memory>
#include <utility>
#include "Common/CommonTypes.h"
#include "VideoBackends/Vulkan/StreamBuffer.h"
#include "VideoBackends/Vulkan/TextureCache.h"
#include "VideoCommon/TextureConversionShader.h"
#include "VideoCommon/TextureDecoder.h"
#include "VideoCommon/VideoCommon.h"
@ -45,6 +48,12 @@ public:
void DecodeYUYVTextureFromMemory(TextureCache::TCacheEntry* dst_texture, const void* src_ptr,
u32 src_width, u32 src_stride, u32 src_height);
bool SupportsTextureDecoding(TextureFormat format, TlutFormat palette_format);
void DecodeTexture(TextureCache::TCacheEntry* entry, u32 dst_level, const u8* data,
size_t data_size, TextureFormat format, u32 width, u32 height,
u32 aligned_width, u32 aligned_height, u32 row_stride, const u8* palette,
TlutFormat palette_format);
private:
static const u32 NUM_TEXTURE_ENCODING_SHADERS = 64;
static const u32 ENCODING_TEXTURE_WIDTH = EFB_WIDTH * 4;
@ -52,6 +61,10 @@ private:
static const VkFormat ENCODING_TEXTURE_FORMAT = VK_FORMAT_B8G8R8A8_UNORM;
static const size_t NUM_PALETTE_CONVERSION_SHADERS = 3;
// Maximum size of a texture based on BP registers.
static const u32 DECODING_TEXTURE_WIDTH = 1024;
static const u32 DECODING_TEXTURE_HEIGHT = 1024;
bool CreateTexelBuffer();
VkBufferView CreateTexelBufferView(VkFormat format) const;
@ -62,6 +75,8 @@ private:
bool CreateEncodingTexture();
bool CreateEncodingDownloadTexture();
bool CreateDecodingTexture();
bool CompileYUYVConversionShaders();
// Allocates storage in the texel command buffer of the specified size.
@ -77,7 +92,9 @@ private:
// Shared between conversion types
std::unique_ptr<StreamBuffer> m_texel_buffer;
VkBufferView m_texel_buffer_view_r8_uint = VK_NULL_HANDLE;
VkBufferView m_texel_buffer_view_r16_uint = VK_NULL_HANDLE;
VkBufferView m_texel_buffer_view_r32g32_uint = VK_NULL_HANDLE;
VkBufferView m_texel_buffer_view_rgba8_unorm = VK_NULL_HANDLE;
size_t m_texel_buffer_size = 0;
@ -91,6 +108,16 @@ private:
VkFramebuffer m_encoding_render_framebuffer = VK_NULL_HANDLE;
std::unique_ptr<StagingTexture2D> m_encoding_download_texture;
// Texture decoding - GX format in memory->RGBA8
struct TextureDecodingPipeline
{
const TextureConversionShader::DecodingShaderInfo* base_info;
VkShaderModule compute_shader;
bool valid;
};
std::map<std::pair<TextureFormat, TlutFormat>, TextureDecodingPipeline> m_decoding_pipelines;
std::unique_ptr<Texture2D> m_decoding_texture;
// XFB encoding/decoding shaders
VkShaderModule m_rgb_to_yuyv_shader = VK_NULL_HANDLE;
VkShaderModule m_yuyv_to_rgb_shader = VK_NULL_HANDLE;