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dolphin/Source/Core/VideoCommon/FramebufferManager.cpp

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// Copyright 2010 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoCommon/FramebufferManager.h"
#include <memory>
#include "VideoCommon/FramebufferShaderGen.h"
#include "VideoCommon/VertexManagerBase.h"
#include "Common/ChunkFile.h"
#include "Common/Logging/Log.h"
#include "Common/MsgHandler.h"
#include "Core/Config/GraphicsSettings.h"
#include "VideoCommon/AbstractFramebuffer.h"
#include "VideoCommon/AbstractPipeline.h"
#include "VideoCommon/AbstractShader.h"
#include "VideoCommon/AbstractStagingTexture.h"
#include "VideoCommon/AbstractTexture.h"
#include "VideoCommon/DriverDetails.h"
#include "VideoCommon/RenderBase.h"
#include "VideoCommon/VideoConfig.h"
// Maximum number of pixels poked in one batch * 6
constexpr size_t MAX_POKE_VERTICES = 32768;
std::unique_ptr<FramebufferManager> g_framebuffer_manager;
FramebufferManager::FramebufferManager() = default;
FramebufferManager::~FramebufferManager()
{
DestroyClearPipelines();
DestroyPokePipelines();
DestroyConversionPipelines();
DestroyReadbackPipelines();
DestroyReadbackFramebuffer();
DestroyEFBFramebuffer();
}
bool FramebufferManager::Initialize()
{
if (!CreateEFBFramebuffer())
{
PanicAlert("Failed to create EFB framebuffer");
return false;
}
m_efb_cache_tile_size = static_cast<u32>(std::max(g_ActiveConfig.iEFBAccessTileSize, 0));
if (!CreateReadbackFramebuffer())
{
PanicAlert("Failed to create EFB readback framebuffer");
return false;
}
if (!CompileReadbackPipelines())
{
PanicAlert("Failed to compile EFB readback pipelines");
return false;
}
if (!CompileConversionPipelines())
{
PanicAlert("Failed to compile EFB conversion pipelines");
return false;
}
if (!CompileClearPipelines())
{
PanicAlert("Failed to compile EFB clear pipelines");
return false;
}
if (!CompilePokePipelines())
{
PanicAlert("Failed to compile EFB poke pipelines");
return false;
}
return true;
}
void FramebufferManager::RecreateEFBFramebuffer()
{
FlushEFBPokes();
InvalidatePeekCache(true);
DestroyReadbackFramebuffer();
DestroyEFBFramebuffer();
if (!CreateEFBFramebuffer() || !CreateReadbackFramebuffer())
PanicAlert("Failed to recreate EFB framebuffer");
}
void FramebufferManager::RecompileShaders()
{
DestroyPokePipelines();
DestroyClearPipelines();
DestroyConversionPipelines();
DestroyReadbackPipelines();
if (!CompileReadbackPipelines() || !CompileConversionPipelines() || !CompileClearPipelines() ||
!CompilePokePipelines())
{
PanicAlert("Failed to recompile EFB pipelines");
}
}
AbstractTextureFormat FramebufferManager::GetEFBColorFormat()
{
// The EFB can be set to different pixel formats by the game through the
// BPMEM_ZCOMPARE register (which should probably have a different name).
// They are:
// - 24-bit RGB (8-bit components) with 24-bit Z
// - 24-bit RGBA (6-bit components) with 24-bit Z
// - Multisampled 16-bit RGB (5-6-5 format) with 16-bit Z
// We only use one EFB format here: 32-bit ARGB with 32-bit Z.
// Multisampling depends on user settings.
// The distinction becomes important for certain operations, i.e. the
// alpha channel should be ignored if the EFB does not have one.
return AbstractTextureFormat::RGBA8;
}
AbstractTextureFormat FramebufferManager::GetEFBDepthFormat()
{
// 32-bit depth clears are broken in the Adreno Vulkan driver, and have no effect.
// To work around this, we use a D24_S8 buffer instead, which results in a loss of accuracy.
// We still resolve this to a R32F texture, as there is no 24-bit format.
if (DriverDetails::HasBug(DriverDetails::BUG_BROKEN_D32F_CLEAR))
return AbstractTextureFormat::D24_S8;
else
return AbstractTextureFormat::D32F;
}
static u32 CalculateEFBLayers()
{
return (g_ActiveConfig.stereo_mode != StereoMode::Off) ? 2 : 1;
}
TextureConfig FramebufferManager::GetEFBColorTextureConfig()
{
return TextureConfig(g_renderer->GetTargetWidth(), g_renderer->GetTargetHeight(), 1,
CalculateEFBLayers(), g_ActiveConfig.iMultisamples, GetEFBColorFormat(),
AbstractTextureFlag_RenderTarget);
}
TextureConfig FramebufferManager::GetEFBDepthTextureConfig()
{
return TextureConfig(g_renderer->GetTargetWidth(), g_renderer->GetTargetHeight(), 1,
CalculateEFBLayers(), g_ActiveConfig.iMultisamples, GetEFBDepthFormat(),
AbstractTextureFlag_RenderTarget);
}
FramebufferState FramebufferManager::GetEFBFramebufferState() const
{
FramebufferState ret = {};
ret.color_texture_format = m_efb_color_texture->GetFormat();
ret.depth_texture_format = m_efb_depth_texture->GetFormat();
ret.per_sample_shading = IsEFBMultisampled() && g_ActiveConfig.bSSAA;
ret.samples = m_efb_color_texture->GetSamples();
return ret;
}
bool FramebufferManager::CreateEFBFramebuffer()
{
const TextureConfig efb_color_texture_config = GetEFBColorTextureConfig();
const TextureConfig efb_depth_texture_config = GetEFBDepthTextureConfig();
// We need a second texture to swap with for changing pixel formats
m_efb_color_texture = g_renderer->CreateTexture(efb_color_texture_config);
m_efb_depth_texture = g_renderer->CreateTexture(efb_depth_texture_config);
m_efb_convert_color_texture = g_renderer->CreateTexture(efb_color_texture_config);
if (!m_efb_color_texture || !m_efb_depth_texture || !m_efb_convert_color_texture)
return false;
m_efb_framebuffer =
g_renderer->CreateFramebuffer(m_efb_color_texture.get(), m_efb_depth_texture.get());
m_efb_convert_framebuffer =
g_renderer->CreateFramebuffer(m_efb_convert_color_texture.get(), m_efb_depth_texture.get());
if (!m_efb_framebuffer || !m_efb_convert_framebuffer)
return false;
// Create resolved textures if MSAA is on
if (g_ActiveConfig.MultisamplingEnabled())
{
m_efb_resolve_color_texture = g_renderer->CreateTexture(
TextureConfig(efb_color_texture_config.width, efb_color_texture_config.height, 1,
efb_color_texture_config.layers, 1, efb_color_texture_config.format, 0));
m_efb_depth_resolve_texture = g_renderer->CreateTexture(TextureConfig(
efb_depth_texture_config.width, efb_depth_texture_config.height, 1,
efb_depth_texture_config.layers, 1,
AbstractTexture::GetColorFormatForDepthFormat(efb_depth_texture_config.format),
AbstractTextureFlag_RenderTarget));
if (!m_efb_resolve_color_texture || !m_efb_depth_resolve_texture)
return false;
m_efb_depth_resolve_framebuffer =
g_renderer->CreateFramebuffer(m_efb_depth_resolve_texture.get(), nullptr);
if (!m_efb_depth_resolve_framebuffer)
return false;
}
// Clear the renderable textures out.
g_renderer->SetAndClearFramebuffer(
m_efb_framebuffer.get(), {{0.0f, 0.0f, 0.0f, 0.0f}},
g_ActiveConfig.backend_info.bSupportsReversedDepthRange ? 1.0f : 0.0f);
return true;
}
void FramebufferManager::DestroyEFBFramebuffer()
{
m_efb_framebuffer.reset();
m_efb_convert_framebuffer.reset();
m_efb_color_texture.reset();
m_efb_convert_color_texture.reset();
m_efb_depth_texture.reset();
m_efb_resolve_color_texture.reset();
m_efb_depth_resolve_framebuffer.reset();
m_efb_depth_resolve_texture.reset();
}
void FramebufferManager::BindEFBFramebuffer()
{
g_renderer->SetFramebuffer(m_efb_framebuffer.get());
}
AbstractTexture* FramebufferManager::ResolveEFBColorTexture(const MathUtil::Rectangle<int>& region)
{
// Return the normal EFB texture if multisampling is off.
if (!IsEFBMultisampled())
return m_efb_color_texture.get();
// It's not valid to resolve an out-of-range rectangle.
MathUtil::Rectangle<int> clamped_region = region;
clamped_region.ClampUL(0, 0, GetEFBWidth(), GetEFBHeight());
// Resolve to our already-created texture.
for (u32 layer = 0; layer < GetEFBLayers(); layer++)
{
m_efb_resolve_color_texture->ResolveFromTexture(m_efb_color_texture.get(), clamped_region,
layer, 0);
}
m_efb_resolve_color_texture->FinishedRendering();
return m_efb_resolve_color_texture.get();
}
AbstractTexture* FramebufferManager::ResolveEFBDepthTexture(const MathUtil::Rectangle<int>& region)
{
if (!IsEFBMultisampled())
return m_efb_depth_texture.get();
// It's not valid to resolve an out-of-range rectangle.
MathUtil::Rectangle<int> clamped_region = region;
clamped_region.ClampUL(0, 0, GetEFBWidth(), GetEFBHeight());
m_efb_depth_texture->FinishedRendering();
g_renderer->BeginUtilityDrawing();
g_renderer->SetAndDiscardFramebuffer(m_efb_depth_resolve_framebuffer.get());
g_renderer->SetPipeline(m_efb_depth_resolve_pipeline.get());
g_renderer->SetTexture(0, m_efb_depth_texture.get());
g_renderer->SetSamplerState(0, RenderState::GetPointSamplerState());
g_renderer->SetViewportAndScissor(clamped_region);
g_renderer->Draw(0, 3);
m_efb_depth_resolve_texture->FinishedRendering();
g_renderer->EndUtilityDrawing();
return m_efb_depth_resolve_texture.get();
}
bool FramebufferManager::ReinterpretPixelData(EFBReinterpretType convtype)
{
if (!m_format_conversion_pipelines[static_cast<u32>(convtype)])
return false;
// Draw to the secondary framebuffer.
// We don't discard here because discarding the framebuffer also throws away the depth
// buffer, which we want to preserve. If we find this to be hindering performance in the
// future (e.g. on mobile/tilers), it may be worth discarding only the color buffer.
m_efb_color_texture->FinishedRendering();
g_renderer->BeginUtilityDrawing();
g_renderer->SetFramebuffer(m_efb_convert_framebuffer.get());
g_renderer->SetViewportAndScissor(m_efb_framebuffer->GetRect());
g_renderer->SetPipeline(m_format_conversion_pipelines[static_cast<u32>(convtype)].get());
g_renderer->SetTexture(0, m_efb_color_texture.get());
g_renderer->Draw(0, 3);
// And swap the framebuffers around, so we do new drawing to the converted framebuffer.
std::swap(m_efb_color_texture, m_efb_convert_color_texture);
std::swap(m_efb_framebuffer, m_efb_convert_framebuffer);
g_renderer->EndUtilityDrawing();
InvalidatePeekCache(true);
return true;
}
bool FramebufferManager::CompileConversionPipelines()
{
for (u32 i = 0; i < NUM_EFB_REINTERPRET_TYPES; i++)
{
std::unique_ptr<AbstractShader> pixel_shader = g_renderer->CreateShaderFromSource(
ShaderStage::Pixel, FramebufferShaderGen::GenerateFormatConversionShader(
static_cast<EFBReinterpretType>(i), GetEFBSamples()));
if (!pixel_shader)
return false;
AbstractPipelineConfig config = {};
config.vertex_shader = g_shader_cache->GetScreenQuadVertexShader();
config.geometry_shader = IsEFBStereo() ? g_shader_cache->GetTexcoordGeometryShader() : nullptr;
config.pixel_shader = pixel_shader.get();
config.rasterization_state = RenderState::GetNoCullRasterizationState(PrimitiveType::Triangles);
config.depth_state = RenderState::GetNoDepthTestingDepthState();
config.blending_state = RenderState::GetNoBlendingBlendState();
config.framebuffer_state = GetEFBFramebufferState();
config.usage = AbstractPipelineUsage::Utility;
m_format_conversion_pipelines[i] = g_renderer->CreatePipeline(config);
if (!m_format_conversion_pipelines[i])
return false;
}
return true;
}
void FramebufferManager::DestroyConversionPipelines()
{
for (auto& pipeline : m_format_conversion_pipelines)
pipeline.reset();
}
bool FramebufferManager::IsUsingTiledEFBCache() const
{
return m_efb_cache_tile_size > 0;
}
bool FramebufferManager::IsEFBCacheTilePresent(bool depth, u32 x, u32 y, u32* tile_index) const
{
const EFBCacheData& data = depth ? m_efb_depth_cache : m_efb_color_cache;
if (m_efb_cache_tile_size == 0)
{
*tile_index = 0;
return data.valid;
}
else
{
*tile_index =
((y / m_efb_cache_tile_size) * m_efb_cache_tiles_wide) + (x / m_efb_cache_tile_size);
return data.valid && data.tiles[*tile_index];
}
}
MathUtil::Rectangle<int> FramebufferManager::GetEFBCacheTileRect(u32 tile_index) const
{
if (m_efb_cache_tile_size == 0)
return MathUtil::Rectangle<int>(0, 0, EFB_WIDTH, EFB_HEIGHT);
const u32 tile_y = tile_index / m_efb_cache_tiles_wide;
const u32 tile_x = tile_index % m_efb_cache_tiles_wide;
const u32 start_y = tile_y * m_efb_cache_tile_size;
const u32 start_x = tile_x * m_efb_cache_tile_size;
return MathUtil::Rectangle<int>(
start_x, start_y, std::min(start_x + m_efb_cache_tile_size, static_cast<u32>(EFB_WIDTH)),
std::min(start_y + m_efb_cache_tile_size, static_cast<u32>(EFB_HEIGHT)));
}
u32 FramebufferManager::PeekEFBColor(u32 x, u32 y)
{
// The y coordinate here assumes upper-left origin, but the readback texture is lower-left in GL.
if (g_ActiveConfig.backend_info.bUsesLowerLeftOrigin)
y = EFB_HEIGHT - 1 - y;
u32 tile_index;
if (!IsEFBCacheTilePresent(false, x, y, &tile_index))
PopulateEFBCache(false, tile_index);
u32 value;
m_efb_color_cache.readback_texture->ReadTexel(x, y, &value);
return value;
}
float FramebufferManager::PeekEFBDepth(u32 x, u32 y)
{
// The y coordinate here assumes upper-left origin, but the readback texture is lower-left in GL.
if (g_ActiveConfig.backend_info.bUsesLowerLeftOrigin)
y = EFB_HEIGHT - 1 - y;
u32 tile_index;
if (!IsEFBCacheTilePresent(true, x, y, &tile_index))
PopulateEFBCache(true, tile_index);
float value;
m_efb_depth_cache.readback_texture->ReadTexel(x, y, &value);
return value;
}
void FramebufferManager::SetEFBCacheTileSize(u32 size)
{
if (m_efb_cache_tile_size == size)
return;
InvalidatePeekCache(true);
m_efb_cache_tile_size = size;
DestroyReadbackFramebuffer();
if (!CreateReadbackFramebuffer())
PanicAlert("Failed to create EFB readback framebuffers");
}
void FramebufferManager::InvalidatePeekCache(bool forced)
{
if (forced || m_efb_color_cache.out_of_date)
{
if (m_efb_color_cache.valid)
std::fill(m_efb_color_cache.tiles.begin(), m_efb_color_cache.tiles.end(), false);
m_efb_color_cache.valid = false;
m_efb_color_cache.out_of_date = false;
}
if (forced || m_efb_depth_cache.out_of_date)
{
if (m_efb_depth_cache.valid)
std::fill(m_efb_depth_cache.tiles.begin(), m_efb_depth_cache.tiles.end(), false);
m_efb_depth_cache.valid = false;
m_efb_depth_cache.out_of_date = false;
}
}
void FramebufferManager::FlagPeekCacheAsOutOfDate()
{
if (m_efb_color_cache.valid)
m_efb_color_cache.out_of_date = true;
if (m_efb_depth_cache.valid)
m_efb_depth_cache.out_of_date = true;
if (!g_ActiveConfig.bEFBAccessDeferInvalidation)
InvalidatePeekCache();
}
bool FramebufferManager::CompileReadbackPipelines()
{
AbstractPipelineConfig config = {};
config.vertex_shader = g_shader_cache->GetTextureCopyVertexShader();
config.geometry_shader = IsEFBStereo() ? g_shader_cache->GetTexcoordGeometryShader() : nullptr;
config.pixel_shader = g_shader_cache->GetTextureCopyPixelShader();
config.rasterization_state = RenderState::GetNoCullRasterizationState(PrimitiveType::Triangles);
config.depth_state = RenderState::GetNoDepthTestingDepthState();
config.blending_state = RenderState::GetNoBlendingBlendState();
config.framebuffer_state = RenderState::GetColorFramebufferState(GetEFBColorFormat());
config.usage = AbstractPipelineUsage::Utility;
m_efb_color_cache.copy_pipeline = g_renderer->CreatePipeline(config);
if (!m_efb_color_cache.copy_pipeline)
return false;
// same for depth, except different format
config.framebuffer_state.color_texture_format =
AbstractTexture::GetColorFormatForDepthFormat(GetEFBDepthFormat());
m_efb_depth_cache.copy_pipeline = g_renderer->CreatePipeline(config);
if (!m_efb_depth_cache.copy_pipeline)
return false;
if (IsEFBMultisampled())
{
auto depth_resolve_shader = g_renderer->CreateShaderFromSource(
ShaderStage::Pixel, FramebufferShaderGen::GenerateResolveDepthPixelShader(GetEFBSamples()));
if (!depth_resolve_shader)
return false;
config.pixel_shader = depth_resolve_shader.get();
m_efb_depth_resolve_pipeline = g_renderer->CreatePipeline(config);
if (!m_efb_depth_resolve_pipeline)
return false;
}
// EFB restore pipeline
auto restore_shader = g_renderer->CreateShaderFromSource(
ShaderStage::Pixel, FramebufferShaderGen::GenerateEFBRestorePixelShader());
if (!restore_shader)
return false;
config.depth_state = RenderState::GetAlwaysWriteDepthState();
config.framebuffer_state = GetEFBFramebufferState();
config.framebuffer_state.per_sample_shading = false;
config.vertex_shader = g_shader_cache->GetScreenQuadVertexShader();
config.pixel_shader = restore_shader.get();
m_efb_restore_pipeline = g_renderer->CreatePipeline(config);
if (!m_efb_restore_pipeline)
return false;
return true;
}
void FramebufferManager::DestroyReadbackPipelines()
{
m_efb_depth_resolve_pipeline.reset();
m_efb_depth_cache.copy_pipeline.reset();
m_efb_color_cache.copy_pipeline.reset();
}
bool FramebufferManager::CreateReadbackFramebuffer()
{
// Since we can't partially copy from a depth buffer directly to the staging texture in D3D, we
// use an intermediate buffer to avoid copying the whole texture.
if ((IsUsingTiledEFBCache() && !g_ActiveConfig.backend_info.bSupportsPartialDepthCopies) ||
g_renderer->GetEFBScale() != 1)
{
const TextureConfig color_config(IsUsingTiledEFBCache() ? m_efb_cache_tile_size : EFB_WIDTH,
IsUsingTiledEFBCache() ? m_efb_cache_tile_size : EFB_HEIGHT, 1,
1, 1, GetEFBColorFormat(), AbstractTextureFlag_RenderTarget);
const TextureConfig depth_config(
color_config.width, color_config.height, 1, 1, 1,
AbstractTexture::GetColorFormatForDepthFormat(GetEFBDepthFormat()),
AbstractTextureFlag_RenderTarget);
m_efb_color_cache.texture = g_renderer->CreateTexture(color_config);
m_efb_depth_cache.texture = g_renderer->CreateTexture(depth_config);
if (!m_efb_color_cache.texture || !m_efb_depth_cache.texture)
return false;
m_efb_color_cache.framebuffer =
g_renderer->CreateFramebuffer(m_efb_color_cache.texture.get(), nullptr);
m_efb_depth_cache.framebuffer =
g_renderer->CreateFramebuffer(m_efb_depth_cache.texture.get(), nullptr);
if (!m_efb_color_cache.framebuffer || !m_efb_depth_cache.framebuffer)
return false;
}
// Staging texture use the full EFB dimensions, as this is the buffer for the whole cache.
m_efb_color_cache.readback_texture = g_renderer->CreateStagingTexture(
StagingTextureType::Mutable,
TextureConfig(EFB_WIDTH, EFB_HEIGHT, 1, 1, 1, GetEFBColorFormat(), 0));
m_efb_depth_cache.readback_texture = g_renderer->CreateStagingTexture(
StagingTextureType::Mutable,
TextureConfig(EFB_WIDTH, EFB_HEIGHT, 1, 1, 1,
AbstractTexture::GetColorFormatForDepthFormat(GetEFBDepthFormat()), 0));
if (!m_efb_color_cache.readback_texture || !m_efb_depth_cache.readback_texture)
return false;
if (IsUsingTiledEFBCache())
{
const u32 tiles_wide = ((EFB_WIDTH + (m_efb_cache_tile_size - 1)) / m_efb_cache_tile_size);
const u32 tiles_high = ((EFB_HEIGHT + (m_efb_cache_tile_size - 1)) / m_efb_cache_tile_size);
const u32 total_tiles = tiles_wide * tiles_high;
m_efb_color_cache.tiles.resize(total_tiles);
std::fill(m_efb_color_cache.tiles.begin(), m_efb_color_cache.tiles.end(), false);
m_efb_depth_cache.tiles.resize(total_tiles);
std::fill(m_efb_depth_cache.tiles.begin(), m_efb_depth_cache.tiles.end(), false);
m_efb_cache_tiles_wide = tiles_wide;
}
return true;
}
void FramebufferManager::DestroyReadbackFramebuffer()
{
auto DestroyCache = [](EFBCacheData& data) {
data.readback_texture.reset();
data.framebuffer.reset();
data.texture.reset();
data.valid = false;
};
DestroyCache(m_efb_color_cache);
DestroyCache(m_efb_depth_cache);
}
void FramebufferManager::PopulateEFBCache(bool depth, u32 tile_index)
{
g_vertex_manager->OnCPUEFBAccess();
// Force the path through the intermediate texture, as we can't do an image copy from a depth
// buffer directly to a staging texture (must be the whole resource).
const bool force_intermediate_copy =
depth && !g_ActiveConfig.backend_info.bSupportsPartialDepthCopies && IsUsingTiledEFBCache();
// Issue a copy from framebuffer -> copy texture if we have >1xIR or MSAA on.
EFBCacheData& data = depth ? m_efb_depth_cache : m_efb_color_cache;
const MathUtil::Rectangle<int> rect = GetEFBCacheTileRect(tile_index);
const MathUtil::Rectangle<int> native_rect = g_renderer->ConvertEFBRectangle(rect);
AbstractTexture* src_texture =
depth ? ResolveEFBDepthTexture(native_rect) : ResolveEFBColorTexture(native_rect);
if (g_renderer->GetEFBScale() != 1 || force_intermediate_copy)
{
// Downsample from internal resolution to 1x.
// TODO: This won't produce correct results at IRs above 2x. More samples are required.
// This is the same issue as with EFB copies.
src_texture->FinishedRendering();
g_renderer->BeginUtilityDrawing();
const float rcp_src_width = 1.0f / m_efb_framebuffer->GetWidth();
const float rcp_src_height = 1.0f / m_efb_framebuffer->GetHeight();
const std::array<float, 4> uniforms = {
{native_rect.left * rcp_src_width, native_rect.top * rcp_src_height,
native_rect.GetWidth() * rcp_src_width, native_rect.GetHeight() * rcp_src_height}};
g_vertex_manager->UploadUtilityUniforms(&uniforms, sizeof(uniforms));
// Viewport will not be TILE_SIZExTILE_SIZE for the last row of tiles, assuming a tile size of
// 64, because 528 is not evenly divisible by 64.
g_renderer->SetAndDiscardFramebuffer(data.framebuffer.get());
g_renderer->SetViewportAndScissor(
MathUtil::Rectangle<int>(0, 0, rect.GetWidth(), rect.GetHeight()));
g_renderer->SetPipeline(data.copy_pipeline.get());
g_renderer->SetTexture(0, src_texture);
g_renderer->SetSamplerState(0, depth ? RenderState::GetPointSamplerState() :
RenderState::GetLinearSamplerState());
g_renderer->Draw(0, 3);
// Copy from EFB or copy texture to staging texture.
// No need to call FinishedRendering() here because CopyFromTexture() transitions.
data.readback_texture->CopyFromTexture(
data.texture.get(), MathUtil::Rectangle<int>(0, 0, rect.GetWidth(), rect.GetHeight()), 0, 0,
rect);
g_renderer->EndUtilityDrawing();
}
else
{
data.readback_texture->CopyFromTexture(src_texture, rect, 0, 0, rect);
}
// Wait until the copy is complete.
data.readback_texture->Flush();
data.valid = true;
data.out_of_date = false;
if (IsUsingTiledEFBCache())
data.tiles[tile_index] = true;
}
void FramebufferManager::ClearEFB(const MathUtil::Rectangle<int>& rc, bool clear_color,
bool clear_alpha, bool clear_z, u32 color, u32 z)
{
FlushEFBPokes();
FlagPeekCacheAsOutOfDate();
g_renderer->BeginUtilityDrawing();
// Set up uniforms.
struct Uniforms
{
float clear_color[4];
float clear_depth;
float padding1, padding2, padding3;
};
static_assert(std::is_standard_layout<Uniforms>::value);
Uniforms uniforms = {{static_cast<float>((color >> 16) & 0xFF) / 255.0f,
static_cast<float>((color >> 8) & 0xFF) / 255.0f,
static_cast<float>((color >> 0) & 0xFF) / 255.0f,
static_cast<float>((color >> 24) & 0xFF) / 255.0f},
static_cast<float>(z & 0xFFFFFF) / 16777216.0f};
if (!g_ActiveConfig.backend_info.bSupportsReversedDepthRange)
uniforms.clear_depth = 1.0f - uniforms.clear_depth;
g_vertex_manager->UploadUtilityUniforms(&uniforms, sizeof(uniforms));
const auto target_rc = g_renderer->ConvertFramebufferRectangle(
g_renderer->ConvertEFBRectangle(rc), m_efb_framebuffer.get());
g_renderer->SetPipeline(m_efb_clear_pipelines[clear_color][clear_alpha][clear_z].get());
g_renderer->SetViewportAndScissor(target_rc);
g_renderer->Draw(0, 3);
g_renderer->EndUtilityDrawing();
}
bool FramebufferManager::CompileClearPipelines()
{
auto vertex_shader = g_renderer->CreateShaderFromSource(
ShaderStage::Vertex, FramebufferShaderGen::GenerateClearVertexShader());
if (!vertex_shader)
return false;
AbstractPipelineConfig config;
config.vertex_format = nullptr;
config.vertex_shader = vertex_shader.get();
config.geometry_shader = IsEFBStereo() ? g_shader_cache->GetColorGeometryShader() : nullptr;
config.pixel_shader = g_shader_cache->GetColorPixelShader();
config.rasterization_state = RenderState::GetNoCullRasterizationState(PrimitiveType::Triangles);
config.depth_state = RenderState::GetAlwaysWriteDepthState();
config.blending_state = RenderState::GetNoBlendingBlendState();
config.framebuffer_state = GetEFBFramebufferState();
config.usage = AbstractPipelineUsage::Utility;
for (u32 color_enable = 0; color_enable < 2; color_enable++)
{
config.blending_state.colorupdate = color_enable != 0;
for (u32 alpha_enable = 0; alpha_enable < 2; alpha_enable++)
{
config.blending_state.alphaupdate = alpha_enable != 0;
for (u32 depth_enable = 0; depth_enable < 2; depth_enable++)
{
config.depth_state.testenable = depth_enable != 0;
config.depth_state.updateenable = depth_enable != 0;
m_efb_clear_pipelines[color_enable][alpha_enable][depth_enable] =
g_renderer->CreatePipeline(config);
if (!m_efb_clear_pipelines[color_enable][alpha_enable][depth_enable])
return false;
}
}
}
return true;
}
void FramebufferManager::DestroyClearPipelines()
{
for (u32 color_enable = 0; color_enable < 2; color_enable++)
{
for (u32 alpha_enable = 0; alpha_enable < 2; alpha_enable++)
{
for (u32 depth_enable = 0; depth_enable < 2; depth_enable++)
{
m_efb_clear_pipelines[color_enable][alpha_enable][depth_enable].reset();
}
}
}
}
void FramebufferManager::PokeEFBColor(u32 x, u32 y, u32 color)
{
// Flush if we exceeded the number of vertices per batch.
if ((m_color_poke_vertices.size() + 6) > MAX_POKE_VERTICES)
FlushEFBPokes();
CreatePokeVertices(&m_color_poke_vertices, x, y, 0.0f, color);
// See comment above for reasoning for lower-left coordinates.
if (g_ActiveConfig.backend_info.bUsesLowerLeftOrigin)
y = EFB_HEIGHT - 1 - y;
// Update the peek cache if it's valid, since we know the color of the pixel now.
u32 tile_index;
if (IsEFBCacheTilePresent(false, x, y, &tile_index))
m_efb_color_cache.readback_texture->WriteTexel(x, y, &color);
}
void FramebufferManager::PokeEFBDepth(u32 x, u32 y, float depth)
{
// Flush if we exceeded the number of vertices per batch.
if ((m_depth_poke_vertices.size() + 6) > MAX_POKE_VERTICES)
FlushEFBPokes();
CreatePokeVertices(&m_depth_poke_vertices, x, y, depth, 0);
// See comment above for reasoning for lower-left coordinates.
if (g_ActiveConfig.backend_info.bUsesLowerLeftOrigin)
y = EFB_HEIGHT - 1 - y;
// Update the peek cache if it's valid, since we know the color of the pixel now.
u32 tile_index;
if (IsEFBCacheTilePresent(true, x, y, &tile_index))
m_efb_depth_cache.readback_texture->WriteTexel(x, y, &depth);
}
void FramebufferManager::CreatePokeVertices(std::vector<EFBPokeVertex>* destination_list, u32 x,
u32 y, float z, u32 color)
{
const float cs_pixel_width = 1.0f / EFB_WIDTH * 2.0f;
const float cs_pixel_height = 1.0f / EFB_HEIGHT * 2.0f;
if (g_ActiveConfig.backend_info.bSupportsLargePoints)
{
// GPU will expand the point to a quad.
const float cs_x = (static_cast<float>(x) + 0.5f) * cs_pixel_width - 1.0f;
const float cs_y = 1.0f - (static_cast<float>(y) + 0.5f) * cs_pixel_height;
const float point_size = static_cast<float>(g_renderer->GetEFBScale());
destination_list->push_back({{cs_x, cs_y, z, point_size}, color});
return;
}
// Generate quad from the single point (clip-space coordinates).
const float x1 = static_cast<float>(x) * cs_pixel_width - 1.0f;
const float y1 = 1.0f - static_cast<float>(y) * cs_pixel_height;
const float x2 = x1 + cs_pixel_width;
const float y2 = y1 - cs_pixel_height;
destination_list->push_back({{x1, y1, z, 1.0f}, color});
destination_list->push_back({{x2, y1, z, 1.0f}, color});
destination_list->push_back({{x1, y2, z, 1.0f}, color});
destination_list->push_back({{x1, y2, z, 1.0f}, color});
destination_list->push_back({{x2, y1, z, 1.0f}, color});
destination_list->push_back({{x2, y2, z, 1.0f}, color});
}
void FramebufferManager::FlushEFBPokes()
{
if (!m_color_poke_vertices.empty())
{
DrawPokeVertices(m_color_poke_vertices.data(), static_cast<u32>(m_color_poke_vertices.size()),
m_color_poke_pipeline.get());
m_color_poke_vertices.clear();
}
if (!m_depth_poke_vertices.empty())
{
DrawPokeVertices(m_depth_poke_vertices.data(), static_cast<u32>(m_depth_poke_vertices.size()),
m_depth_poke_pipeline.get());
m_depth_poke_vertices.clear();
}
}
void FramebufferManager::DrawPokeVertices(const EFBPokeVertex* vertices, u32 vertex_count,
const AbstractPipeline* pipeline)
{
// Copy to vertex buffer.
g_renderer->BeginUtilityDrawing();
u32 base_vertex, base_index;
g_vertex_manager->UploadUtilityVertices(vertices, sizeof(EFBPokeVertex),
static_cast<u32>(vertex_count), nullptr, 0, &base_vertex,
&base_index);
// Now we can draw.
g_renderer->SetViewportAndScissor(m_efb_framebuffer->GetRect());
g_renderer->SetPipeline(pipeline);
g_renderer->Draw(base_vertex, vertex_count);
g_renderer->EndUtilityDrawing();
}
bool FramebufferManager::CompilePokePipelines()
{
PortableVertexDeclaration vtx_decl = {};
vtx_decl.position.enable = true;
vtx_decl.position.type = VAR_FLOAT;
vtx_decl.position.components = 4;
vtx_decl.position.integer = false;
vtx_decl.position.offset = offsetof(EFBPokeVertex, position);
vtx_decl.colors[0].enable = true;
vtx_decl.colors[0].type = VAR_UNSIGNED_BYTE;
vtx_decl.colors[0].components = 4;
vtx_decl.colors[0].integer = false;
vtx_decl.colors[0].offset = offsetof(EFBPokeVertex, color);
vtx_decl.stride = sizeof(EFBPokeVertex);
m_poke_vertex_format = g_renderer->CreateNativeVertexFormat(vtx_decl);
if (!m_poke_vertex_format)
return false;
auto poke_vertex_shader = g_renderer->CreateShaderFromSource(
ShaderStage::Vertex, FramebufferShaderGen::GenerateEFBPokeVertexShader());
if (!poke_vertex_shader)
return false;
AbstractPipelineConfig config = {};
config.vertex_format = m_poke_vertex_format.get();
config.vertex_shader = poke_vertex_shader.get();
config.geometry_shader = IsEFBStereo() ? g_shader_cache->GetColorGeometryShader() : nullptr;
config.pixel_shader = g_shader_cache->GetColorPixelShader();
config.rasterization_state = RenderState::GetNoCullRasterizationState(
g_ActiveConfig.backend_info.bSupportsLargePoints ? PrimitiveType::Points :
PrimitiveType::Triangles);
config.depth_state = RenderState::GetNoDepthTestingDepthState();
config.blending_state = RenderState::GetNoBlendingBlendState();
config.framebuffer_state = GetEFBFramebufferState();
config.usage = AbstractPipelineUsage::Utility;
m_color_poke_pipeline = g_renderer->CreatePipeline(config);
if (!m_color_poke_pipeline)
return false;
// Turn off color writes, depth writes on for depth pokes.
config.depth_state = RenderState::GetAlwaysWriteDepthState();
config.blending_state = RenderState::GetNoColorWriteBlendState();
m_depth_poke_pipeline = g_renderer->CreatePipeline(config);
if (!m_depth_poke_pipeline)
return false;
return true;
}
void FramebufferManager::DestroyPokePipelines()
{
m_depth_poke_pipeline.reset();
m_color_poke_pipeline.reset();
m_poke_vertex_format.reset();
}
void FramebufferManager::DoState(PointerWrap& p)
{
FlushEFBPokes();
bool save_efb_state = Config::Get(Config::GFX_SAVE_TEXTURE_CACHE_TO_STATE);
p.Do(save_efb_state);
if (!save_efb_state)
return;
if (p.GetMode() == PointerWrap::MODE_WRITE || p.GetMode() == PointerWrap::MODE_MEASURE)
DoSaveState(p);
else
DoLoadState(p);
}
void FramebufferManager::DoSaveState(PointerWrap& p)
{
// For multisampling, we need to resolve first before we can save.
// This won't be bit-exact when loading, which could cause interesting rendering side-effects for
// a frame. But whatever, MSAA doesn't exactly behave that well anyway.
AbstractTexture* color_texture = ResolveEFBColorTexture(m_efb_color_texture->GetRect());
AbstractTexture* depth_texture = ResolveEFBDepthTexture(m_efb_depth_texture->GetRect());
// We don't want to save these as rendertarget textures, just the data itself when deserializing.
const TextureConfig color_texture_config(color_texture->GetWidth(), color_texture->GetHeight(),
color_texture->GetLevels(), color_texture->GetLayers(),
1, GetEFBColorFormat(), 0);
g_texture_cache->SerializeTexture(color_texture, color_texture_config, p);
if (GetEFBDepthFormat() == AbstractTextureFormat::D32F)
{
const TextureConfig depth_texture_config(
depth_texture->GetWidth(), depth_texture->GetHeight(), depth_texture->GetLevels(),
depth_texture->GetLayers(), 1,
AbstractTexture::GetColorFormatForDepthFormat(GetEFBDepthFormat()), 0);
g_texture_cache->SerializeTexture(depth_texture, depth_texture_config, p);
}
else
{
// If the EFB is backed by a D24S8 texture, we first have to convert it to R32F.
const TextureConfig temp_texture_config(depth_texture->GetWidth(), depth_texture->GetHeight(),
depth_texture->GetLevels(), depth_texture->GetLayers(),
1, AbstractTextureFormat::R32F,
AbstractTextureFlag_RenderTarget);
std::unique_ptr<AbstractTexture> temp_texture = g_renderer->CreateTexture(temp_texture_config);
std::unique_ptr<AbstractFramebuffer> temp_fb =
g_renderer->CreateFramebuffer(temp_texture.get(), nullptr);
if (temp_texture && temp_fb)
{
g_renderer->ScaleTexture(temp_fb.get(), temp_texture->GetRect(), depth_texture,
depth_texture->GetRect());
const TextureConfig depth_texture_config(
depth_texture->GetWidth(), depth_texture->GetHeight(), depth_texture->GetLevels(),
depth_texture->GetLayers(), 1, temp_texture->GetFormat(), 0);
g_texture_cache->SerializeTexture(depth_texture, depth_texture_config, p);
}
else
{
PanicAlert("Failed to create temp texture for depth saving");
g_texture_cache->SerializeTexture(color_texture, color_texture_config, p);
}
}
}
void FramebufferManager::DoLoadState(PointerWrap& p)
{
// Invalidate any peek cache tiles.
InvalidatePeekCache(true);
// Deserialize the color and depth textures. This could fail.
auto color_tex = g_texture_cache->DeserializeTexture(p);
auto depth_tex = g_texture_cache->DeserializeTexture(p);
// If the stereo mode is different in the save state, throw it away.
if (!color_tex || !depth_tex ||
color_tex->texture->GetLayers() != m_efb_color_texture->GetLayers())
{
WARN_LOG(VIDEO, "Failed to deserialize EFB contents. Clearing instead.");
g_renderer->SetAndClearFramebuffer(
m_efb_framebuffer.get(), {{0.0f, 0.0f, 0.0f, 0.0f}},
g_ActiveConfig.backend_info.bSupportsReversedDepthRange ? 1.0f : 0.0f);
return;
}
// Size differences are okay here, since the linear filtering will downscale/upscale it.
// Depth buffer is always point sampled, since we don't want to interpolate depth values.
const bool rescale = color_tex->texture->GetWidth() != m_efb_color_texture->GetWidth() ||
color_tex->texture->GetHeight() != m_efb_color_texture->GetHeight();
// Draw the deserialized textures over the EFB.
g_renderer->BeginUtilityDrawing();
g_renderer->SetAndDiscardFramebuffer(m_efb_framebuffer.get());
g_renderer->SetViewportAndScissor(m_efb_framebuffer->GetRect());
g_renderer->SetPipeline(m_efb_restore_pipeline.get());
g_renderer->SetTexture(0, color_tex->texture.get());
g_renderer->SetTexture(1, depth_tex->texture.get());
g_renderer->SetSamplerState(0, rescale ? RenderState::GetLinearSamplerState() :
RenderState::GetPointSamplerState());
g_renderer->SetSamplerState(1, RenderState::GetPointSamplerState());
g_renderer->Draw(0, 3);
g_renderer->EndUtilityDrawing();
}
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