piwalker/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-07-22 22:00:39 -06:00
Code Issues Packages Projects Releases Wiki Activity

Vulkan: Implement compute-shader based GPU texture decoding

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

177
Source/Core/VideoBackends/Vulkan/TextureConverter.cpp
View File

@ -42,8 +42,12 @@ TextureConverter::~TextureConverter()
vkDestroyShaderModule(g_vulkan_context->GetDevice(), it, nullptr);
}
if (m_texel_buffer_view_r8_uint != VK_NULL_HANDLE)
vkDestroyBufferView(g_vulkan_context->GetDevice(), m_texel_buffer_view_r8_uint, nullptr);
if (m_texel_buffer_view_r16_uint != VK_NULL_HANDLE)
vkDestroyBufferView(g_vulkan_context->GetDevice(), m_texel_buffer_view_r16_uint, nullptr);
if (m_texel_buffer_view_r32g32_uint != VK_NULL_HANDLE)
vkDestroyBufferView(g_vulkan_context->GetDevice(), m_texel_buffer_view_r32g32_uint, nullptr);
if (m_texel_buffer_view_rgba8_unorm != VK_NULL_HANDLE)
vkDestroyBufferView(g_vulkan_context->GetDevice(), m_texel_buffer_view_rgba8_unorm, nullptr);
@ -59,6 +63,12 @@ TextureConverter::~TextureConverter()
vkDestroyShaderModule(g_vulkan_context->GetDevice(), shader, nullptr);
}
for (const auto& it : m_decoding_pipelines)
{
if (it.second.compute_shader != VK_NULL_HANDLE)
vkDestroyShaderModule(g_vulkan_context->GetDevice(), it.second.compute_shader, nullptr);
}
if (m_rgb_to_yuyv_shader != VK_NULL_HANDLE)
vkDestroyShaderModule(g_vulkan_context->GetDevice(), m_rgb_to_yuyv_shader, nullptr);
if (m_yuyv_to_rgb_shader != VK_NULL_HANDLE)
@ -103,6 +113,12 @@ bool TextureConverter::Initialize()
return false;
}
if (!CreateDecodingTexture())
{
PanicAlert("Failed to create decoding texture");
return false;
}
if (!CompileYUYVConversionShaders())
{
PanicAlert("Failed to compile YUYV conversion shaders");
@ -371,6 +387,152 @@ void TextureConverter::DecodeYUYVTextureFromMemory(TextureCache::TCacheEntry* ds
draw.EndRenderPass();
}
bool TextureConverter::SupportsTextureDecoding(TextureFormat format, TlutFormat palette_format)
{
auto key = std::make_pair(format, palette_format);
auto iter = m_decoding_pipelines.find(key);
if (iter != m_decoding_pipelines.end())
return iter->second.valid;
TextureDecodingPipeline pipeline;
pipeline.base_info = TextureConversionShader::GetDecodingShaderInfo(format);
pipeline.compute_shader = VK_NULL_HANDLE;
pipeline.valid = false;
if (!pipeline.base_info)
{
m_decoding_pipelines.emplace(key, pipeline);
return false;
}
std::string shader_source =
TextureConversionShader::GenerateDecodingShader(format, palette_format, APIType::Vulkan);
pipeline.compute_shader = Util::CompileAndCreateComputeShader(shader_source, true);
if (pipeline.compute_shader == VK_NULL_HANDLE)
{
m_decoding_pipelines.emplace(key, pipeline);
return false;
}
pipeline.valid = true;
m_decoding_pipelines.emplace(key, pipeline);
return true;
}
void TextureConverter::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)
{
auto key = std::make_pair(format, palette_format);
auto iter = m_decoding_pipelines.find(key);
if (iter == m_decoding_pipelines.end())
return;
struct PushConstants
{
u32 dst_size[2];
u32 src_size[2];
u32 src_offset;
u32 src_row_stride;
u32 palette_offset;
};
// Copy to GPU-visible buffer, aligned to the data type
auto info = iter->second;
u32 bytes_per_buffer_elem =
TextureConversionShader::GetBytesPerBufferElement(info.base_info->buffer_format);
// Calculate total data size, including palette.
// Only copy palette if it is required.
u32 total_upload_size = static_cast<u32>(data_size);
u32 palette_size = iter->second.base_info->palette_size;
u32 palette_offset = total_upload_size;
bool has_palette = palette_size > 0;
if (has_palette)
{
// Align to u16.
if ((total_upload_size % sizeof(u16)) != 0)
{
total_upload_size++;
palette_offset++;
}
total_upload_size += palette_size;
}
// Allocate space for upload, if it fails, execute the buffer.
if (!m_texel_buffer->ReserveMemory(total_upload_size, bytes_per_buffer_elem))
{
Util::ExecuteCurrentCommandsAndRestoreState(true, false);
if (!m_texel_buffer->ReserveMemory(total_upload_size, bytes_per_buffer_elem))
PanicAlert("Failed to reserve memory for encoded texture upload");
}
// Copy/commit upload buffer.
u32 texel_buffer_offset = static_cast<u32>(m_texel_buffer->GetCurrentOffset());
std::memcpy(m_texel_buffer->GetCurrentHostPointer(), data, data_size);
if (has_palette)
std::memcpy(m_texel_buffer->GetCurrentHostPointer() + palette_offset, palette, palette_size);
m_texel_buffer->CommitMemory(total_upload_size);
// Determine uniforms.
PushConstants constants = {
{width, height},
{aligned_width, aligned_height},
texel_buffer_offset / bytes_per_buffer_elem,
row_stride / bytes_per_buffer_elem,
static_cast<u32>((texel_buffer_offset + palette_offset) / sizeof(u16))};
// Determine view to use for texel buffers.
VkBufferView data_view = VK_NULL_HANDLE;
switch (iter->second.base_info->buffer_format)
{
case TextureConversionShader::BUFFER_FORMAT_R8_UINT:
data_view = m_texel_buffer_view_r8_uint;
break;
case TextureConversionShader::BUFFER_FORMAT_R16_UINT:
data_view = m_texel_buffer_view_r16_uint;
break;
case TextureConversionShader::BUFFER_FORMAT_R32G32_UINT:
data_view = m_texel_buffer_view_r32g32_uint;
break;
default:
break;
}
// Place compute shader dispatches together in the init command buffer.
// That way we don't have to pay a penalty for switching from graphics->compute,
// or end/restart our render pass.
VkCommandBuffer command_buffer = g_command_buffer_mgr->GetCurrentInitCommandBuffer();
// Dispatch compute to temporary texture.
ComputeShaderDispatcher dispatcher(command_buffer,
g_object_cache->GetPipelineLayout(PIPELINE_LAYOUT_COMPUTE),
iter->second.compute_shader);
m_decoding_texture->TransitionToLayout(command_buffer, Texture2D::ComputeImageLayout::WriteOnly);
dispatcher.SetPushConstants(&constants, sizeof(constants));
dispatcher.SetStorageImage(m_decoding_texture->GetView(), m_decoding_texture->GetLayout());
dispatcher.SetTexelBuffer(0, data_view);
if (has_palette)
dispatcher.SetTexelBuffer(1, m_texel_buffer_view_r16_uint);
auto groups = TextureConversionShader::GetDispatchCount(iter->second.base_info, width, height);
dispatcher.Dispatch(groups.first, groups.second, 1);
// Copy from temporary texture to final destination.
m_decoding_texture->TransitionToLayout(command_buffer, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
entry->GetTexture()->TransitionToLayout(command_buffer, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
VkImageCopy image_copy = {{VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1},
{0, 0, 0},
{VK_IMAGE_ASPECT_COLOR_BIT, dst_level, 0, 1},
{0, 0, 0},
{width, height, 1}};
vkCmdCopyImage(command_buffer, m_decoding_texture->GetImage(),
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, entry->GetTexture()->GetImage(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &image_copy);
}
bool TextureConverter::CreateTexelBuffer()
{
// Prefer an 8MB buffer if possible, but use less if the device doesn't support this.
@ -386,9 +548,13 @@ bool TextureConverter::CreateTexelBuffer()
return false;
// Create views of the formats that we will be using.
m_texel_buffer_view_r8_uint = CreateTexelBufferView(VK_FORMAT_R8_UINT);
m_texel_buffer_view_r16_uint = CreateTexelBufferView(VK_FORMAT_R16_UINT);
m_texel_buffer_view_r32g32_uint = CreateTexelBufferView(VK_FORMAT_R32G32_UINT);
m_texel_buffer_view_rgba8_unorm = CreateTexelBufferView(VK_FORMAT_R8G8B8A8_UNORM);
return m_texel_buffer_view_r16_uint != VK_NULL_HANDLE &&
return m_texel_buffer_view_r8_uint != VK_NULL_HANDLE &&
m_texel_buffer_view_r16_uint != VK_NULL_HANDLE &&
m_texel_buffer_view_r32g32_uint != VK_NULL_HANDLE &&
m_texel_buffer_view_rgba8_unorm != VK_NULL_HANDLE;
}
@ -611,6 +777,15 @@ bool TextureConverter::CreateEncodingDownloadTexture()
return m_encoding_download_texture && m_encoding_download_texture->Map();
}
bool TextureConverter::CreateDecodingTexture()
{
m_decoding_texture = Texture2D::Create(
DECODING_TEXTURE_WIDTH, DECODING_TEXTURE_HEIGHT, 1, 1, VK_FORMAT_R8G8B8A8_UNORM,
VK_SAMPLE_COUNT_1_BIT, VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL,
VK_IMAGE_USAGE_STORAGE_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT);
return static_cast<bool>(m_decoding_texture);
}
bool TextureConverter::CompileYUYVConversionShaders()
{
static const char RGB_TO_YUYV_SHADER_SOURCE[] = R"(