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dolphin/Source/Core/VideoBackends/Vulkan/TextureCache.cpp

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// Copyright 2016 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoBackends/Vulkan/TextureCache.h"
#include <algorithm>
#include <cstring>
#include <string>
#include <vector>
#include "Common/Align.h"
#include "Common/Assert.h"
#include "Common/CommonFuncs.h"
#include "Common/Logging/Log.h"
#include "Common/MsgHandler.h"
#include "VideoBackends/Vulkan/CommandBufferManager.h"
#include "VideoBackends/Vulkan/FramebufferManager.h"
#include "VideoBackends/Vulkan/ObjectCache.h"
#include "VideoBackends/Vulkan/Renderer.h"
#include "VideoBackends/Vulkan/StagingTexture2D.h"
#include "VideoBackends/Vulkan/StateTracker.h"
#include "VideoBackends/Vulkan/StreamBuffer.h"
#include "VideoBackends/Vulkan/Texture2D.h"
#include "VideoBackends/Vulkan/TextureConverter.h"
#include "VideoBackends/Vulkan/Util.h"
#include "VideoBackends/Vulkan/VulkanContext.h"
#include "VideoCommon/ImageWrite.h"
namespace Vulkan
{
TextureCache::TextureCache()
{
}
TextureCache::~TextureCache()
{
if (m_render_pass != VK_NULL_HANDLE)
vkDestroyRenderPass(g_vulkan_context->GetDevice(), m_render_pass, nullptr);
TextureCache::DeleteShaders();
}
TextureCache* TextureCache::GetInstance()
{
return static_cast<TextureCache*>(g_texture_cache.get());
}
bool TextureCache::Initialize()
{
m_texture_upload_buffer =
StreamBuffer::Create(VK_BUFFER_USAGE_TRANSFER_SRC_BIT, INITIAL_TEXTURE_UPLOAD_BUFFER_SIZE,
MAXIMUM_TEXTURE_UPLOAD_BUFFER_SIZE);
if (!m_texture_upload_buffer)
{
PanicAlert("Failed to create texture upload buffer");
return false;
}
if (!CreateRenderPasses())
{
PanicAlert("Failed to create copy render pass");
return false;
}
m_texture_converter = std::make_unique<TextureConverter>();
if (!m_texture_converter->Initialize())
{
PanicAlert("Failed to initialize texture converter");
return false;
}
if (!CompileShaders())
{
PanicAlert("Failed to compile one or more shaders");
return false;
}
return true;
}
void TextureCache::ConvertTexture(TCacheEntryBase* base_entry, TCacheEntryBase* base_unconverted,
void* palette, TlutFormat format)
{
TCacheEntry* entry = static_cast<TCacheEntry*>(base_entry);
TCacheEntry* unconverted = static_cast<TCacheEntry*>(base_unconverted);
m_texture_converter->ConvertTexture(entry, unconverted, m_render_pass, palette, format);
}
void TextureCache::CopyEFB(u8* dst, const EFBCopyFormat& format, u32 native_width,
u32 bytes_per_row, u32 num_blocks_y, u32 memory_stride,
bool is_depth_copy, const EFBRectangle& src_rect, bool scale_by_half)
{
// Flush EFB pokes first, as they're expected to be included.
FramebufferManager::GetInstance()->FlushEFBPokes();
// MSAA case where we need to resolve first.
// An out-of-bounds source region is valid here, and fine for the draw (since it is converted
// to texture coordinates), but it's not valid to resolve an out-of-range rectangle.
TargetRectangle scaled_src_rect = g_renderer->ConvertEFBRectangle(src_rect);
VkRect2D region = {{scaled_src_rect.left, scaled_src_rect.top},
{static_cast<u32>(scaled_src_rect.GetWidth()),
static_cast<u32>(scaled_src_rect.GetHeight())}};
region = Util::ClampRect2D(region, FramebufferManager::GetInstance()->GetEFBWidth(),
FramebufferManager::GetInstance()->GetEFBHeight());
Texture2D* src_texture;
if (is_depth_copy)
src_texture = FramebufferManager::GetInstance()->ResolveEFBDepthTexture(region);
else
src_texture = FramebufferManager::GetInstance()->ResolveEFBColorTexture(region);
// End render pass before barrier (since we have no self-dependencies).
// The barrier has to happen after the render pass, not inside it, as we are going to be
// reading from the texture immediately afterwards.
StateTracker::GetInstance()->EndRenderPass();
StateTracker::GetInstance()->OnReadback();
// Transition to shader resource before reading.
VkImageLayout original_layout = src_texture->GetLayout();
src_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
m_texture_converter->EncodeTextureToMemory(src_texture->GetView(), dst, format, native_width,
bytes_per_row, num_blocks_y, memory_stride,
is_depth_copy, src_rect, scale_by_half);
// Transition back to original state
src_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(), original_layout);
}
void TextureCache::CopyRectangleFromTexture(TCacheEntry* dst_texture,
const MathUtil::Rectangle<int>& dst_rect,
Texture2D* src_texture,
const MathUtil::Rectangle<int>& src_rect)
{
// Fast path when not scaling the image.
if (src_rect.GetWidth() == dst_rect.GetWidth() && src_rect.GetHeight() == dst_rect.GetHeight())
CopyTextureRectangle(dst_texture, dst_rect, src_texture, src_rect);
else
ScaleTextureRectangle(dst_texture, dst_rect, src_texture, src_rect);
}
bool TextureCache::SupportsGPUTextureDecode(TextureFormat format, TlutFormat palette_format)
{
return m_texture_converter->SupportsTextureDecoding(format, palette_format);
}
void TextureCache::DecodeTextureOnGPU(TCacheEntryBase* 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)
{
m_texture_converter->DecodeTexture(static_cast<TCacheEntry*>(entry), dst_level, data, data_size,
format, width, height, aligned_width, aligned_height,
row_stride, palette, palette_format);
}
void TextureCache::CopyTextureRectangle(TCacheEntry* dst_texture,
const MathUtil::Rectangle<int>& dst_rect,
Texture2D* src_texture,
const MathUtil::Rectangle<int>& src_rect)
{
_assert_msg_(VIDEO, static_cast<u32>(src_rect.GetWidth()) <= src_texture->GetWidth() &&
static_cast<u32>(src_rect.GetHeight()) <= src_texture->GetHeight(),
"Source rect is too large for CopyRectangleFromTexture");
_assert_msg_(VIDEO, static_cast<u32>(dst_rect.GetWidth()) <= dst_texture->config.width &&
static_cast<u32>(dst_rect.GetHeight()) <= dst_texture->config.height,
"Dest rect is too large for CopyRectangleFromTexture");
VkImageCopy image_copy = {
{VK_IMAGE_ASPECT_COLOR_BIT, 0, 0,
src_texture->GetLayers()}, // VkImageSubresourceLayers srcSubresource
{src_rect.left, src_rect.top, 0}, // VkOffset3D srcOffset
{VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, // VkImageSubresourceLayers dstSubresource
dst_texture->config.layers},
{dst_rect.left, dst_rect.top, 0}, // VkOffset3D dstOffset
{static_cast<uint32_t>(src_rect.GetWidth()), static_cast<uint32_t>(src_rect.GetHeight()),
1} // VkExtent3D extent
};
// Must be called outside of a render pass.
StateTracker::GetInstance()->EndRenderPass();
src_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
dst_texture->GetTexture()->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
vkCmdCopyImage(g_command_buffer_mgr->GetCurrentCommandBuffer(), src_texture->GetImage(),
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, dst_texture->GetTexture()->GetImage(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &image_copy);
}
void TextureCache::ScaleTextureRectangle(TCacheEntry* dst_texture,
const MathUtil::Rectangle<int>& dst_rect,
Texture2D* src_texture,
const MathUtil::Rectangle<int>& src_rect)
{
// Can't do this within a game render pass.
StateTracker::GetInstance()->EndRenderPass();
StateTracker::GetInstance()->SetPendingRebind();
// Can't render to a non-rendertarget (no framebuffer).
_assert_msg_(VIDEO, dst_texture->config.rendertarget,
"Destination texture for partial copy is not a rendertarget");
// Render pass expects dst_texture to be in SHADER_READ_ONLY state.
src_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
dst_texture->GetTexture()->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
UtilityShaderDraw draw(g_command_buffer_mgr->GetCurrentCommandBuffer(),
g_object_cache->GetPipelineLayout(PIPELINE_LAYOUT_STANDARD), m_render_pass,
g_object_cache->GetPassthroughVertexShader(),
g_object_cache->GetPassthroughGeometryShader(), m_copy_shader);
VkRect2D region = {
{dst_rect.left, dst_rect.top},
{static_cast<u32>(dst_rect.GetWidth()), static_cast<u32>(dst_rect.GetHeight())}};
draw.BeginRenderPass(dst_texture->GetFramebuffer(), region);
draw.SetPSSampler(0, src_texture->GetView(), g_object_cache->GetLinearSampler());
draw.DrawQuad(dst_rect.left, dst_rect.top, dst_rect.GetWidth(), dst_rect.GetHeight(),
src_rect.left, src_rect.top, 0, src_rect.GetWidth(), src_rect.GetHeight(),
static_cast<int>(src_texture->GetWidth()),
static_cast<int>(src_texture->GetHeight()));
draw.EndRenderPass();
}
TextureCacheBase::TCacheEntryBase* TextureCache::CreateTexture(const TCacheEntryConfig& config)
{
// Determine image usage, we need to flag as an attachment if it can be used as a rendertarget.
VkImageUsageFlags usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT;
if (config.rendertarget)
usage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
// Allocate texture object
VkFormat vk_format = Util::GetVkFormatForHostTextureFormat(config.format);
std::unique_ptr<Texture2D> texture = Texture2D::Create(
config.width, config.height, config.levels, config.layers, vk_format, VK_SAMPLE_COUNT_1_BIT,
VK_IMAGE_VIEW_TYPE_2D_ARRAY, VK_IMAGE_TILING_OPTIMAL, usage);
if (!texture)
return nullptr;
// If this is a render target (for efb copies), allocate a framebuffer
VkFramebuffer framebuffer = VK_NULL_HANDLE;
if (config.rendertarget)
{
VkImageView framebuffer_attachments[] = {texture->GetView()};
VkFramebufferCreateInfo framebuffer_info = {
VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
nullptr,
0,
m_render_pass,
static_cast<u32>(ArraySize(framebuffer_attachments)),
framebuffer_attachments,
texture->GetWidth(),
texture->GetHeight(),
texture->GetLayers()};
VkResult res = vkCreateFramebuffer(g_vulkan_context->GetDevice(), &framebuffer_info, nullptr,
&framebuffer);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateFramebuffer failed: ");
return nullptr;
}
// Clear render targets before use to prevent reading uninitialized memory.
VkClearColorValue clear_value = {{0.0f, 0.0f, 0.0f, 1.0f}};
VkImageSubresourceRange clear_range = {VK_IMAGE_ASPECT_COLOR_BIT, 0, config.levels, 0,
config.layers};
texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentInitCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
vkCmdClearColorImage(g_command_buffer_mgr->GetCurrentInitCommandBuffer(), texture->GetImage(),
texture->GetLayout(), &clear_value, 1, &clear_range);
}
return new TCacheEntry(config, std::move(texture), framebuffer);
}
bool TextureCache::CreateRenderPasses()
{
static constexpr VkAttachmentDescription update_attachment = {
0,
TEXTURECACHE_TEXTURE_FORMAT,
VK_SAMPLE_COUNT_1_BIT,
VK_ATTACHMENT_LOAD_OP_DONT_CARE,
VK_ATTACHMENT_STORE_OP_STORE,
VK_ATTACHMENT_LOAD_OP_DONT_CARE,
VK_ATTACHMENT_STORE_OP_DONT_CARE,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL};
static constexpr VkAttachmentReference color_attachment_reference = {
0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL};
static constexpr VkSubpassDescription subpass_description = {
0, VK_PIPELINE_BIND_POINT_GRAPHICS,
0, nullptr,
1, &color_attachment_reference,
nullptr, nullptr,
0, nullptr};
VkRenderPassCreateInfo update_info = {VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
nullptr,
0,
1,
&update_attachment,
1,
&subpass_description,
0,
nullptr};
VkResult res =
vkCreateRenderPass(g_vulkan_context->GetDevice(), &update_info, nullptr, &m_render_pass);
if (res != VK_SUCCESS)
{
LOG_VULKAN_ERROR(res, "vkCreateRenderPass failed: ");
return false;
}
return true;
}
TextureCache::TCacheEntry::TCacheEntry(const TCacheEntryConfig& config_,
std::unique_ptr<Texture2D> texture,
VkFramebuffer framebuffer)
: TCacheEntryBase(config_), m_texture(std::move(texture)), m_framebuffer(framebuffer)
{
}
TextureCache::TCacheEntry::~TCacheEntry()
{
// Texture is automatically cleaned up, however, we don't want to leave it bound.
StateTracker::GetInstance()->UnbindTexture(m_texture->GetView());
if (m_framebuffer != VK_NULL_HANDLE)
g_command_buffer_mgr->DeferFramebufferDestruction(m_framebuffer);
}
void TextureCache::TCacheEntry::Load(u32 level, u32 width, u32 height, u32 row_length,
const u8* buffer, size_t buffer_size)
{
// Can't copy data larger than the texture extents.
width = std::max(1u, std::min(width, m_texture->GetWidth() >> level));
height = std::max(1u, std::min(height, m_texture->GetHeight() >> level));
// We don't care about the existing contents of the texture, so we could the image layout to
// VK_IMAGE_LAYOUT_UNDEFINED here. However, under section 2.2.1, Queue Operation of the Vulkan
// specification, it states:
//
// Command buffer submissions to a single queue must always adhere to command order and
// API order, but otherwise may overlap or execute out of order.
//
// Therefore, if a previous frame's command buffer is still sampling from this texture, and we
// overwrite it without a pipeline barrier, a texture sample could occur in parallel with the
// texture upload/copy. I'm not sure if any drivers currently take advantage of this, but we
// should insert an explicit pipeline barrier just in case (done by TransitionToLayout).
//
// We transition to TRANSFER_DST, ready for the image copy, and leave the texture in this state.
// This is so that the remaining mip levels can be uploaded without barriers, and then when the
// texture is used, it can be transitioned to SHADER_READ_ONLY (see TCacheEntry::Bind).
m_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentInitCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
// For unaligned textures, we can save some memory in the transfer buffer by skipping the rows
// that lie outside of the texture's dimensions.
u32 upload_alignment = static_cast<u32>(g_vulkan_context->GetBufferImageGranularity());
u32 block_size = Util::GetBlockSize(m_texture->GetFormat());
u32 num_rows = Common::AlignUp(height, block_size) / block_size;
size_t source_pitch = CalculateHostTextureLevelPitch(config.format, row_length);
size_t upload_size = source_pitch * num_rows;
std::unique_ptr<StagingBuffer> temp_buffer;
VkBuffer upload_buffer;
VkDeviceSize upload_buffer_offset;
// Does this texture data fit within the streaming buffer?
if (upload_size <= STAGING_TEXTURE_UPLOAD_THRESHOLD &&
upload_size <= MAXIMUM_TEXTURE_UPLOAD_BUFFER_SIZE)
{
StreamBuffer* stream_buffer = TextureCache::GetInstance()->m_texture_upload_buffer.get();
if (!stream_buffer->ReserveMemory(upload_size, upload_alignment))
{
// Execute the command buffer first.
WARN_LOG(VIDEO, "Executing command list while waiting for space in texture upload buffer");
Util::ExecuteCurrentCommandsAndRestoreState(false);
// Try allocating again. This may cause a fence wait.
if (!stream_buffer->ReserveMemory(upload_size, upload_alignment))
PanicAlert("Failed to allocate space in texture upload buffer");
}
// Copy to the streaming buffer.
upload_buffer = stream_buffer->GetBuffer();
upload_buffer_offset = stream_buffer->GetCurrentOffset();
std::memcpy(stream_buffer->GetCurrentHostPointer(), buffer, upload_size);
stream_buffer->CommitMemory(upload_size);
}
else
{
// Create a temporary staging buffer that is destroyed after the image is copied.
temp_buffer = StagingBuffer::Create(STAGING_BUFFER_TYPE_UPLOAD, upload_size,
VK_BUFFER_USAGE_TRANSFER_SRC_BIT);
if (!temp_buffer || !temp_buffer->Map())
{
PanicAlert("Failed to allocate staging texture for large texture upload.");
return;
}
upload_buffer = temp_buffer->GetBuffer();
upload_buffer_offset = 0;
temp_buffer->Write(0, buffer, upload_size, true);
temp_buffer->Unmap();
}
// Copy from the streaming buffer to the actual image.
VkBufferImageCopy image_copy = {
upload_buffer_offset, // VkDeviceSize bufferOffset
row_length, // uint32_t bufferRowLength
0, // uint32_t bufferImageHeight
{VK_IMAGE_ASPECT_COLOR_BIT, level, 0, 1}, // VkImageSubresourceLayers imageSubresource
{0, 0, 0}, // VkOffset3D imageOffset
{width, height, 1} // VkExtent3D imageExtent
};
vkCmdCopyBufferToImage(g_command_buffer_mgr->GetCurrentInitCommandBuffer(), upload_buffer,
m_texture->GetImage(), VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1,
&image_copy);
}
void TextureCache::TCacheEntry::FromRenderTarget(bool is_depth_copy, const EFBRectangle& src_rect,
bool scale_by_half, unsigned int cbufid,
const float* colmat)
{
// A better way of doing this would be nice.
FramebufferManager* framebuffer_mgr =
static_cast<FramebufferManager*>(g_framebuffer_manager.get());
TargetRectangle scaled_src_rect = g_renderer->ConvertEFBRectangle(src_rect);
// Flush EFB pokes first, as they're expected to be included.
framebuffer_mgr->FlushEFBPokes();
// Has to be flagged as a render target.
_assert_(m_framebuffer != VK_NULL_HANDLE);
// Can't be done in a render pass, since we're doing our own render pass!
VkCommandBuffer command_buffer = g_command_buffer_mgr->GetCurrentCommandBuffer();
StateTracker::GetInstance()->EndRenderPass();
// Transition EFB to shader resource before binding.
// An out-of-bounds source region is valid here, and fine for the draw (since it is converted
// to texture coordinates), but it's not valid to resolve an out-of-range rectangle.
VkRect2D region = {{scaled_src_rect.left, scaled_src_rect.top},
{static_cast<u32>(scaled_src_rect.GetWidth()),
static_cast<u32>(scaled_src_rect.GetHeight())}};
region = Util::ClampRect2D(region, FramebufferManager::GetInstance()->GetEFBWidth(),
FramebufferManager::GetInstance()->GetEFBHeight());
Texture2D* src_texture;
if (is_depth_copy)
src_texture = FramebufferManager::GetInstance()->ResolveEFBDepthTexture(region);
else
src_texture = FramebufferManager::GetInstance()->ResolveEFBColorTexture(region);
VkSampler src_sampler =
scale_by_half ? g_object_cache->GetLinearSampler() : g_object_cache->GetPointSampler();
VkImageLayout original_layout = src_texture->GetLayout();
src_texture->TransitionToLayout(command_buffer, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
m_texture->TransitionToLayout(command_buffer, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
UtilityShaderDraw draw(
command_buffer, g_object_cache->GetPipelineLayout(PIPELINE_LAYOUT_PUSH_CONSTANT),
TextureCache::GetInstance()->m_render_pass, g_object_cache->GetPassthroughVertexShader(),
g_object_cache->GetPassthroughGeometryShader(),
is_depth_copy ? TextureCache::GetInstance()->m_efb_depth_to_tex_shader :
TextureCache::GetInstance()->m_efb_color_to_tex_shader);
draw.SetPushConstants(colmat, (is_depth_copy ? sizeof(float) * 20 : sizeof(float) * 28));
draw.SetPSSampler(0, src_texture->GetView(), src_sampler);
VkRect2D dest_region = {{0, 0}, {m_texture->GetWidth(), m_texture->GetHeight()}};
draw.BeginRenderPass(m_framebuffer, dest_region);
draw.DrawQuad(0, 0, config.width, config.height, scaled_src_rect.left, scaled_src_rect.top, 0,
scaled_src_rect.GetWidth(), scaled_src_rect.GetHeight(),
framebuffer_mgr->GetEFBWidth(), framebuffer_mgr->GetEFBHeight());
draw.EndRenderPass();
// We touched everything, so put it back.
StateTracker::GetInstance()->SetPendingRebind();
// Transition the EFB back to its original layout.
src_texture->TransitionToLayout(command_buffer, original_layout);
// Render pass transitions texture to SHADER_READ_ONLY.
m_texture->TransitionToLayout(command_buffer, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
}
void TextureCache::TCacheEntry::CopyRectangleFromTexture(const TCacheEntryBase* source,
const MathUtil::Rectangle<int>& src_rect,
const MathUtil::Rectangle<int>& dst_rect)
{
const TCacheEntry* source_vk = static_cast<const TCacheEntry*>(source);
TextureCache::GetInstance()->CopyRectangleFromTexture(this, dst_rect, source_vk->GetTexture(),
src_rect);
// Ensure textures are ready for use again.
m_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
source_vk->GetTexture()->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
}
void TextureCache::TCacheEntry::Bind(unsigned int stage)
{
m_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
StateTracker::GetInstance()->SetTexture(stage, m_texture->GetView());
}
bool TextureCache::TCacheEntry::Save(const std::string& filename, unsigned int level)
{
_assert_(level < config.levels);
// We can't dump compressed textures currently (it would mean drawing them to a RGBA8
// framebuffer, and saving that). TextureCache does not call Save for custom textures
// anyway, so this is fine for now.
_assert_(config.format == HostTextureFormat::RGBA8);
// Determine dimensions of image we want to save.
u32 level_width = std::max(1u, config.width >> level);
u32 level_height = std::max(1u, config.height >> level);
// Use a temporary staging texture for the download. Certainly not optimal,
// but since we have to idle the GPU anyway it doesn't really matter.
std::unique_ptr<StagingTexture2D> staging_texture = StagingTexture2D::Create(
STAGING_BUFFER_TYPE_READBACK, level_width, level_height, TEXTURECACHE_TEXTURE_FORMAT);
// Transition image to transfer source, and invalidate the current state,
// since we'll be executing the command buffer.
m_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
StateTracker::GetInstance()->EndRenderPass();
// Copy to download buffer.
staging_texture->CopyFromImage(g_command_buffer_mgr->GetCurrentCommandBuffer(),
m_texture->GetImage(), VK_IMAGE_ASPECT_COLOR_BIT, 0, 0,
level_width, level_height, level, 0);
// Restore original state of texture.
m_texture->TransitionToLayout(g_command_buffer_mgr->GetCurrentCommandBuffer(),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
// Block until the GPU has finished copying to the staging texture.
Util::ExecuteCurrentCommandsAndRestoreState(false, true);
// Map the staging texture so we can copy the contents out.
if (!staging_texture->Map())
{
PanicAlert("Failed to map staging texture");
return false;
}
// Write texture out to file.
// It's okay to throw this texture away immediately, since we're done with it, and
// we blocked until the copy completed on the GPU anyway.
bool result = TextureToPng(reinterpret_cast<u8*>(staging_texture->GetMapPointer()),
static_cast<u32>(staging_texture->GetRowStride()), filename,
level_width, level_height);
staging_texture->Unmap();
return result;
}
bool TextureCache::CompileShaders()
{
static const char COPY_SHADER_SOURCE[] = R"(
layout(set = 1, binding = 0) uniform sampler2DArray samp0;
layout(location = 0) in float3 uv0;
layout(location = 1) in float4 col0;
layout(location = 0) out float4 ocol0;
void main()
{
ocol0 = texture(samp0, uv0);
}
)";
static const char EFB_COLOR_TO_TEX_SOURCE[] = R"(
SAMPLER_BINDING(0) uniform sampler2DArray samp0;
layout(std140, push_constant) uniform PSBlock
{
vec4 colmat[7];
} C;
layout(location = 0) in vec3 uv0;
layout(location = 1) in vec4 col0;
layout(location = 0) out vec4 ocol0;
void main()
{
float4 texcol = texture(samp0, uv0);
texcol = floor(texcol * C.colmat[5]) * C.colmat[6];
ocol0 = texcol * mat4(C.colmat[0], C.colmat[1], C.colmat[2], C.colmat[3]) + C.colmat[4];
}
)";
static const char EFB_DEPTH_TO_TEX_SOURCE[] = R"(
SAMPLER_BINDING(0) uniform sampler2DArray samp0;
layout(std140, push_constant) uniform PSBlock
{
vec4 colmat[5];
} C;
layout(location = 0) in vec3 uv0;
layout(location = 1) in vec4 col0;
layout(location = 0) out vec4 ocol0;
void main()
{
#if MONO_DEPTH
vec4 texcol = texture(samp0, vec3(uv0.xy, 0.0f));
#else
vec4 texcol = texture(samp0, uv0);
#endif
int depth = int((1.0 - texcol.x) * 16777216.0);
// Convert to Z24 format
ivec4 workspace;
workspace.r = (depth >> 16) & 255;
workspace.g = (depth >> 8) & 255;
workspace.b = depth & 255;
// Convert to Z4 format
workspace.a = (depth >> 16) & 0xF0;
// Normalize components to [0.0..1.0]
texcol = vec4(workspace) / 255.0;
ocol0 = texcol * mat4(C.colmat[0], C.colmat[1], C.colmat[2], C.colmat[3]) + C.colmat[4];
}
)";
std::string header = g_object_cache->GetUtilityShaderHeader();
std::string source;
source = header + COPY_SHADER_SOURCE;
m_copy_shader = Util::CompileAndCreateFragmentShader(source);
source = header + EFB_COLOR_TO_TEX_SOURCE;
m_efb_color_to_tex_shader = Util::CompileAndCreateFragmentShader(source);
if (g_ActiveConfig.bStereoEFBMonoDepth)
source = header + "#define MONO_DEPTH 1\n" + EFB_DEPTH_TO_TEX_SOURCE;
else
source = header + EFB_DEPTH_TO_TEX_SOURCE;
m_efb_depth_to_tex_shader = Util::CompileAndCreateFragmentShader(source);
return m_copy_shader != VK_NULL_HANDLE && m_efb_color_to_tex_shader != VK_NULL_HANDLE &&
m_efb_depth_to_tex_shader != VK_NULL_HANDLE;
}
void TextureCache::DeleteShaders()
{
// It is safe to destroy shader modules after they are consumed by creating a pipeline.
// Therefore, no matter where this function is called from, it won't cause an issue due to
// pending commands, although at the time of writing should only be called at the end of
// a frame. See Vulkan spec, section 2.3.1. Object Lifetime.
if (m_copy_shader != VK_NULL_HANDLE)
{
vkDestroyShaderModule(g_vulkan_context->GetDevice(), m_copy_shader, nullptr);
m_copy_shader = VK_NULL_HANDLE;
}
if (m_efb_color_to_tex_shader != VK_NULL_HANDLE)
{
vkDestroyShaderModule(g_vulkan_context->GetDevice(), m_efb_color_to_tex_shader, nullptr);
m_efb_color_to_tex_shader = VK_NULL_HANDLE;
}
if (m_efb_depth_to_tex_shader != VK_NULL_HANDLE)
{
vkDestroyShaderModule(g_vulkan_context->GetDevice(), m_efb_depth_to_tex_shader, nullptr);
m_efb_depth_to_tex_shader = VK_NULL_HANDLE;
}
}
} // namespace Vulkan
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