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GPU/HW: Dynamically size downsampling textures

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Stenzek 2023-12-08 17:35:34 +10:00
parent ff37afef55
commit f1604db4a3
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3 changed files with 84 additions and 67 deletions
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140
src/core/gpu_hw.cpp
View file

@ -3,10 +3,10 @@
#include "gpu_hw.h"
#include "cpu_core.h"
#include "cpu_pgxp.h"
#include "gpu_hw_shadergen.h"
#include "gpu_sw_backend.h"
#include "host.h"
#include "cpu_pgxp.h"
#include "settings.h"
#include "system.h"
@ -653,30 +653,9 @@ bool GPU_HW::CreateBuffers()
Log_InfoFmt("Created HW framebuffer of {}x{}", texture_width, texture_height);
if (m_downsample_mode == GPUDownsampleMode::Adaptive)
{
const u32 levels = GetAdaptiveDownsamplingMipLevels();
if (!(m_downsample_texture = g_gpu_device->FetchTexture(texture_width, texture_height, 1, levels, 1,
GPUTexture::Type::Texture, VRAM_RT_FORMAT)) ||
!(m_downsample_render_texture = g_gpu_device->FetchTexture(texture_width, texture_height, 1, 1, 1,
GPUTexture::Type::RenderTarget, VRAM_RT_FORMAT)) ||
!(m_downsample_weight_texture =
g_gpu_device->FetchTexture(texture_width >> (levels - 1), texture_height >> (levels - 1), 1, 1, 1,
GPUTexture::Type::RenderTarget, GPUTexture::Format::R8)))
{
return false;
}
}
m_downsample_scale_or_levels = GetAdaptiveDownsamplingMipLevels();
else if (m_downsample_mode == GPUDownsampleMode::Box)
{
const u32 downsample_scale = GetBoxDownsampleScale(m_resolution_scale);
if (!(m_downsample_render_texture =
g_gpu_device->FetchTexture(VRAM_WIDTH * downsample_scale, VRAM_HEIGHT * downsample_scale, 1, 1, 1,
GPUTexture::Type::RenderTarget, VRAM_RT_FORMAT)))
{
return false;
}
}
m_downsample_scale_or_levels = m_resolution_scale / GetBoxDownsampleScale(m_resolution_scale);
g_gpu_device->SetRenderTarget(m_vram_texture.get(), m_vram_depth_texture.get());
SetFullVRAMDirtyRectangle();
@ -700,8 +679,6 @@ void GPU_HW::DestroyBuffers()
ClearDisplayTexture();
m_vram_upload_buffer.reset();
g_gpu_device->RecycleTexture(std::move(m_downsample_weight_texture));
g_gpu_device->RecycleTexture(std::move(m_downsample_render_texture));
g_gpu_device->RecycleTexture(std::move(m_downsample_texture));
g_gpu_device->RecycleTexture(std::move(m_vram_read_texture));
g_gpu_device->RecycleTexture(std::move(m_vram_depth_texture));
@ -2846,21 +2823,39 @@ void GPU_HW::DownsampleFramebufferAdaptive(GPUTexture* source, u32 left, u32 top
float lod;
};
g_gpu_device->CopyTextureRegion(m_downsample_texture.get(), 0, 0, 0, 0, source, left, top, 0, 0, width, height);
g_gpu_device->SetTextureSampler(0, m_downsample_texture.get(), m_downsample_lod_sampler.get());
if (!m_downsample_texture || m_downsample_texture->GetWidth() != width || m_downsample_texture->GetHeight() != height)
{
g_gpu_device->RecycleTexture(std::move(m_downsample_texture));
m_downsample_texture =
g_gpu_device->FetchTexture(width, height, 1, 1, 1, GPUTexture::Type::RenderTarget, VRAM_RT_FORMAT);
}
std::unique_ptr<GPUTexture, GPUDevice::PooledTextureDeleter> level_texture = g_gpu_device->FetchAutoRecycleTexture(
width, height, 1, m_downsample_scale_or_levels, 1, GPUTexture::Type::Texture, VRAM_RT_FORMAT);
std::unique_ptr<GPUTexture, GPUDevice::PooledTextureDeleter> weight_texture =
g_gpu_device->FetchAutoRecycleTexture(std::max(width >> (m_downsample_scale_or_levels - 1), 1u),
std::max(height >> (m_downsample_scale_or_levels - 1), 1u), 1, 1, 1,
GPUTexture::Type::RenderTarget, GPUTexture::Format::R8);
if (!m_downsample_texture || !level_texture || !weight_texture)
{
Log_ErrorFmt("Failed to create {}x{} RTs for adaptive downsampling", width, height);
SetDisplayTexture(source, left, top, width, height);
return;
}
g_gpu_device->CopyTextureRegion(level_texture.get(), 0, 0, 0, 0, source, left, top, 0, 0, width, height);
g_gpu_device->SetTextureSampler(0, level_texture.get(), m_downsample_lod_sampler.get());
const u32 levels = m_downsample_texture->GetLevels();
SmoothingUBOData uniforms;
// create mip chain
for (u32 level = 1; level < levels; level++)
for (u32 level = 1; level < m_downsample_scale_or_levels; level++)
{
GL_SCOPE_FMT("Create miplevel {}", level);
const u32 level_width = width >> level;
const u32 level_height = height >> level;
const float rcp_width = 1.0f / static_cast<float>(m_downsample_texture->GetMipWidth(level));
const float rcp_height = 1.0f / static_cast<float>(m_downsample_texture->GetMipHeight(level));
const float rcp_width = 1.0f / static_cast<float>(level_texture->GetMipWidth(level));
const float rcp_height = 1.0f / static_cast<float>(level_texture->GetMipHeight(level));
uniforms.min_uv[0] = 0.0f;
uniforms.min_uv[1] = 0.0f;
uniforms.max_uv[0] = static_cast<float>(level_width) * rcp_width;
@ -2869,26 +2864,26 @@ void GPU_HW::DownsampleFramebufferAdaptive(GPUTexture* source, u32 left, u32 top
uniforms.rcp_size[1] = rcp_height;
uniforms.lod = static_cast<float>(level - 1);
g_gpu_device->ClearRenderTarget(m_downsample_render_texture.get(), 0);
g_gpu_device->SetRenderTarget(m_downsample_render_texture.get());
g_gpu_device->InvalidateRenderTarget(m_downsample_texture.get());
g_gpu_device->SetRenderTarget(m_downsample_texture.get());
g_gpu_device->SetViewportAndScissor(0, 0, level_width, level_height);
g_gpu_device->SetPipeline((level == 1) ? m_downsample_first_pass_pipeline.get() :
m_downsample_mid_pass_pipeline.get());
g_gpu_device->PushUniformBuffer(&uniforms, sizeof(uniforms));
g_gpu_device->Draw(3, 0);
g_gpu_device->CopyTextureRegion(m_downsample_texture.get(), 0, 0, 0, level, m_downsample_render_texture.get(), 0, 0,
0, 0, level_width, level_height);
g_gpu_device->CopyTextureRegion(level_texture.get(), 0, 0, 0, level, m_downsample_texture.get(), 0, 0, 0, 0,
level_width, level_height);
}
// blur pass at lowest level
{
GL_SCOPE("Blur");
const u32 last_level = levels - 1;
const u32 last_width = width >> last_level;
const u32 last_height = height >> last_level;
const float rcp_width = 1.0f / static_cast<float>(m_downsample_render_texture->GetWidth());
const float rcp_height = 1.0f / static_cast<float>(m_downsample_render_texture->GetHeight());
const u32 last_level = m_downsample_scale_or_levels - 1;
const u32 last_width = level_texture->GetMipWidth(last_level);
const u32 last_height = level_texture->GetMipHeight(last_level);
const float rcp_width = 1.0f / static_cast<float>(m_downsample_texture->GetWidth());
const float rcp_height = 1.0f / static_cast<float>(m_downsample_texture->GetHeight());
uniforms.min_uv[0] = 0.0f;
uniforms.min_uv[1] = 0.0f;
uniforms.max_uv[0] = static_cast<float>(last_width) * rcp_width;
@ -2897,58 +2892,81 @@ void GPU_HW::DownsampleFramebufferAdaptive(GPUTexture* source, u32 left, u32 top
uniforms.rcp_size[1] = rcp_height;
uniforms.lod = 0.0f;
m_downsample_render_texture->MakeReadyForSampling();
g_gpu_device->ClearRenderTarget(m_downsample_weight_texture.get(), 0);
g_gpu_device->SetRenderTarget(m_downsample_weight_texture.get());
g_gpu_device->SetTextureSampler(0, m_downsample_render_texture.get(), g_gpu_device->GetNearestSampler());
m_downsample_texture->MakeReadyForSampling();
g_gpu_device->InvalidateRenderTarget(weight_texture.get());
g_gpu_device->SetRenderTarget(weight_texture.get());
g_gpu_device->SetTextureSampler(0, m_downsample_texture.get(), g_gpu_device->GetNearestSampler());
g_gpu_device->SetViewportAndScissor(0, 0, last_width, last_height);
g_gpu_device->SetPipeline(m_downsample_blur_pass_pipeline.get());
g_gpu_device->PushUniformBuffer(&uniforms, sizeof(uniforms));
g_gpu_device->Draw(3, 0);
m_downsample_weight_texture->MakeReadyForSampling();
weight_texture->MakeReadyForSampling();
}
// composite downsampled and upsampled images together
{
GL_SCOPE("Composite");
g_gpu_device->ClearRenderTarget(m_downsample_render_texture.get(), 0);
g_gpu_device->SetRenderTarget(m_downsample_render_texture.get());
g_gpu_device->SetTextureSampler(0, m_downsample_texture.get(), m_downsample_composite_sampler.get());
g_gpu_device->SetTextureSampler(1, m_downsample_weight_texture.get(), m_downsample_lod_sampler.get());
uniforms.min_uv[0] = 0.0f;
uniforms.min_uv[1] = 0.0f;
uniforms.max_uv[0] = 1.0f;
uniforms.max_uv[1] = 1.0f;
g_gpu_device->InvalidateRenderTarget(m_downsample_texture.get());
g_gpu_device->SetRenderTarget(m_downsample_texture.get());
g_gpu_device->SetTextureSampler(0, level_texture.get(), m_downsample_composite_sampler.get());
g_gpu_device->SetTextureSampler(1, weight_texture.get(), m_downsample_lod_sampler.get());
g_gpu_device->SetViewportAndScissor(0, 0, width, height);
g_gpu_device->SetPipeline(m_downsample_composite_pass_pipeline.get());
g_gpu_device->PushUniformBuffer(&uniforms, sizeof(uniforms));
g_gpu_device->Draw(3, 0);
m_downsample_render_texture->MakeReadyForSampling();
m_downsample_texture->MakeReadyForSampling();
}
GL_POP();
RestoreDeviceContext();
SetDisplayTexture(m_downsample_render_texture.get(), 0, 0, width, height);
SetDisplayTexture(m_downsample_texture.get(), 0, 0, width, height);
}
void GPU_HW::DownsampleFramebufferBoxFilter(GPUTexture* source, u32 left, u32 top, u32 width, u32 height)
{
const u32 factor = m_resolution_scale / GetBoxDownsampleScale(m_resolution_scale);
const u32 ds_left = left / factor;
const u32 ds_top = top / factor;
const u32 ds_width = width / factor;
const u32 ds_height = height / factor;
GL_SCOPE_FMT("DownsampleFramebufferBoxFilter({},{} => {},{} ({}x{})", left, top, left + width, top + height, width,
height);
const u32 ds_width = width / m_downsample_scale_or_levels;
const u32 ds_height = height / m_downsample_scale_or_levels;
if (!m_downsample_texture || m_downsample_texture->GetWidth() != ds_width ||
m_downsample_texture->GetHeight() != ds_height)
{
g_gpu_device->RecycleTexture(std::move(m_downsample_texture));
m_downsample_texture =
g_gpu_device->FetchTexture(ds_width, ds_height, 1, 1, 1, GPUTexture::Type::RenderTarget, VRAM_RT_FORMAT);
}
if (!m_downsample_texture)
{
Log_ErrorFmt("Failed to create {}x{} RT for box downsampling", width, height);
SetDisplayTexture(source, left, top, width, height);
return;
}
source->MakeReadyForSampling();
g_gpu_device->ClearRenderTarget(m_downsample_render_texture.get(), 0);
g_gpu_device->SetRenderTarget(m_downsample_render_texture.get());
const u32 uniforms[4] = {left, top, 0u, 0u};
g_gpu_device->PushUniformBuffer(uniforms, sizeof(uniforms));
g_gpu_device->InvalidateRenderTarget(m_downsample_texture.get());
g_gpu_device->SetRenderTarget(m_downsample_texture.get());
g_gpu_device->SetPipeline(m_downsample_first_pass_pipeline.get());
g_gpu_device->SetTextureSampler(0, source, g_gpu_device->GetNearestSampler());
g_gpu_device->SetViewportAndScissor(ds_left, ds_top, ds_width, ds_height);
g_gpu_device->SetViewportAndScissor(0, 0, ds_width, ds_height);
g_gpu_device->Draw(3, 0);
RestoreDeviceContext();
SetDisplayTexture(m_downsample_render_texture.get(), ds_left, ds_top, ds_width, ds_height);
SetDisplayTexture(m_downsample_texture.get(), 0, 0, ds_width, ds_height);
}
void GPU_HW::DrawRendererStats(bool is_idle_frame)

3
src/core/gpu_hw.h
View file

@ -282,14 +282,13 @@ private:
std::unique_ptr<GPUPipeline> m_copy_pipeline;
std::unique_ptr<GPUTexture> m_downsample_texture;
std::unique_ptr<GPUTexture> m_downsample_render_texture;
std::unique_ptr<GPUTexture> m_downsample_weight_texture;
std::unique_ptr<GPUPipeline> m_downsample_first_pass_pipeline;
std::unique_ptr<GPUPipeline> m_downsample_mid_pass_pipeline;
std::unique_ptr<GPUPipeline> m_downsample_blur_pass_pipeline;
std::unique_ptr<GPUPipeline> m_downsample_composite_pass_pipeline;
std::unique_ptr<GPUSampler> m_downsample_lod_sampler;
std::unique_ptr<GPUSampler> m_downsample_composite_sampler;
u32 m_downsample_scale_or_levels = 0;
// Statistics
RendererStats m_renderer_stats = {};

8
src/core/gpu_hw_shadergen.cpp
View file

@ -1582,10 +1582,9 @@ std::string GPU_HW_ShaderGen::GenerateAdaptiveDownsampleCompositeFragmentShader(
DeclareFragmentEntryPoint(ss, 0, 1, {}, true, 1, false, false, false, false);
ss << R"(
{
float2 uv = v_pos.xy * RCP_VRAM_SIZE;
float bias = SAMPLE_TEXTURE(samp1, uv).r;
float bias = SAMPLE_TEXTURE(samp1, v_tex0).r;
float mip = float(RESOLUTION_SCALE - 1u) * bias;
float3 color = SAMPLE_TEXTURE_LEVEL(samp0, uv, mip).rgb;
float3 color = SAMPLE_TEXTURE_LEVEL(samp0, v_tex0, mip).rgb;
o_col0 = float4(color, 1.0);
}
)";
@ -1598,6 +1597,7 @@ std::string GPU_HW_ShaderGen::GenerateBoxSampleDownsampleFragmentShader(u32 fact
std::stringstream ss;
WriteHeader(ss);
WriteCommonFunctions(ss);
DeclareUniformBuffer(ss, {"uint2 u_base_coords"}, true);
DeclareTexture(ss, "samp0", 0, false);
ss << "#define FACTOR " << factor << "\n";
@ -1606,7 +1606,7 @@ std::string GPU_HW_ShaderGen::GenerateBoxSampleDownsampleFragmentShader(u32 fact
ss << R"(
{
float3 color = float3(0.0, 0.0, 0.0);
uint2 base_coords = uint2(v_pos.xy) * uint2(FACTOR, FACTOR);
uint2 base_coords = u_base_coords + uint2(v_pos.xy) * uint2(FACTOR, FACTOR);
for (uint offset_x = 0u; offset_x < FACTOR; offset_x++)
{
for (uint offset_y = 0u; offset_y < FACTOR; offset_y++)