flutter · bdero · Apr 19, 2023 · Apr 19, 2023
diff --git a/impeller/display_list/dl_image_impeller.cc b/impeller/display_list/dl_image_impeller.cc
@@ -31,7 +31,8 @@ sk_sp<DlImageImpeller> DlImageImpeller::MakeFromYUVTextures(
   impeller::Entity entity;
   entity.SetBlendMode(impeller::BlendMode::kSource);
   auto snapshot = yuv_to_rgb_filter_contents->RenderToSnapshot(
-      aiks_context->GetContentContext(), entity);
+      aiks_context->GetContentContext(), entity, std::nullopt, true,
+      "MakeYUVToRGBFilter Snapshot");
   return impeller::DlImageImpeller::Make(snapshot->texture);
 }
 

diff --git a/impeller/entity/contents/atlas_contents.cc b/impeller/entity/contents/atlas_contents.cc
@@ -248,7 +248,8 @@ bool AtlasContents::Render(const ContentContext& renderer,
     auto contents = ColorFilterContents::MakeBlend(
         blend_mode_,
         {FilterInput::Make(dst_contents), FilterInput::Make(src_contents)});
-    auto snapshot = contents->RenderToSnapshot(renderer, entity);
+    auto snapshot = contents->RenderToSnapshot(renderer, entity, std::nullopt,
+                                               true, "AtlasContents Snapshot");
     if (!snapshot.has_value()) {
       return false;
     }

diff --git a/impeller/entity/contents/contents.cc b/impeller/entity/contents/contents.cc
@@ -56,14 +56,15 @@ std::optional<Snapshot> Contents::RenderToSnapshot(
     const ContentContext& renderer,
     const Entity& entity,
     const std::optional<SamplerDescriptor>& sampler_descriptor,
-    bool msaa_enabled) const {
+    bool msaa_enabled,
+    const std::string& label) const {
   auto coverage = GetCoverage(entity);
   if (!coverage.has_value()) {
     return std::nullopt;
   }
 
   auto texture = renderer.MakeSubpass(
-      "Snapshot", ISize::Ceil(coverage->size),
+      label, ISize::Ceil(coverage->size),
       [&contents = *this, &entity, &coverage](const ContentContext& renderer,
                                               RenderPass& pass) -> bool {
         Entity sub_entity;

diff --git a/impeller/entity/contents/contents.h b/impeller/entity/contents/contents.h
@@ -72,7 +72,8 @@ class Contents {
       const ContentContext& renderer,
       const Entity& entity,
       const std::optional<SamplerDescriptor>& sampler_descriptor = std::nullopt,
-      bool msaa_enabled = true) const;
+      bool msaa_enabled = true,
+      const std::string& label = "Snapshot") const;
 
   virtual bool ShouldRender(const Entity& entity,
                             const std::optional<Rect>& stencil_coverage) const;

diff --git a/impeller/entity/contents/filters/blend_filter_contents.cc b/impeller/entity/contents/filters/blend_filter_contents.cc
@@ -54,7 +54,8 @@ static std::optional<Entity> AdvancedBlend(
     return std::nullopt;
   }
 
-  auto dst_snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto dst_snapshot =
+      inputs[0]->GetSnapshot("AdvancedBlend(Dst)", renderer, entity);
   if (!dst_snapshot.has_value()) {
     return std::nullopt;
   }
@@ -67,7 +68,8 @@ static std::optional<Entity> AdvancedBlend(
   std::optional<Snapshot> src_snapshot;
   std::array<Point, 4> src_uvs;
   if (!foreground_color.has_value()) {
-    src_snapshot = inputs[1]->GetSnapshot(renderer, entity);
+    src_snapshot =
+        inputs[1]->GetSnapshot("AdvancedBlend(Src)", renderer, entity);
     if (!src_snapshot.has_value()) {
       if (!dst_snapshot.has_value()) {
         return std::nullopt;
@@ -188,7 +190,8 @@ std::optional<Entity> BlendFilterContents::CreateForegroundAdvancedBlend(
     BlendMode blend_mode,
     std::optional<Scalar> alpha,
     bool absorb_opacity) const {
-  auto dst_snapshot = input->GetSnapshot(renderer, entity);
+  auto dst_snapshot =
+      input->GetSnapshot("ForegroundAdvancedBlend", renderer, entity);
   if (!dst_snapshot.has_value()) {
     return std::nullopt;
   }
@@ -353,7 +356,8 @@ std::optional<Entity> BlendFilterContents::CreateForegroundPorterDuffBlend(
     BlendMode blend_mode,
     std::optional<Scalar> alpha,
     bool absorb_opacity) const {
-  auto dst_snapshot = input->GetSnapshot(renderer, entity);
+  auto dst_snapshot =
+      input->GetSnapshot("ForegroundPorterDuffBlend", renderer, entity);
   if (!dst_snapshot.has_value()) {
     return std::nullopt;
   }
@@ -477,7 +481,8 @@ static std::optional<Entity> PipelineBlend(
   using VS = BlendPipeline::VertexShader;
   using FS = BlendPipeline::FragmentShader;
 
-  auto dst_snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto dst_snapshot =
+      inputs[0]->GetSnapshot("PipelineBlend(Dst)", renderer, entity);
 
   ContentContext::SubpassCallback callback = [&](const ContentContext& renderer,
                                                  RenderPass& pass) {
@@ -544,7 +549,8 @@ static std::optional<Entity> PipelineBlend(
 
       for (auto texture_i = inputs.begin() + 1; texture_i < inputs.end();
            texture_i++) {
-        auto src_input = texture_i->get()->GetSnapshot(renderer, entity);
+        auto src_input = texture_i->get()->GetSnapshot("PipelineBlend(Src)",
+                                                       renderer, entity);
         if (!add_blend_command(src_input)) {
           return true;
         }

diff --git a/impeller/entity/contents/filters/border_mask_blur_filter_contents.cc b/impeller/entity/contents/filters/border_mask_blur_filter_contents.cc
@@ -65,7 +65,8 @@ std::optional<Entity> BorderMaskBlurFilterContents::RenderFilter(
     return std::nullopt;
   }
 
-  auto input_snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto input_snapshot =
+      inputs[0]->GetSnapshot("BorderMaskBlur", renderer, entity);
   if (!input_snapshot.has_value()) {
     return std::nullopt;
   }

diff --git a/impeller/entity/contents/filters/color_matrix_filter_contents.cc b/impeller/entity/contents/filters/color_matrix_filter_contents.cc
@@ -41,7 +41,7 @@ std::optional<Entity> ColorMatrixFilterContents::RenderFilter(
     return std::nullopt;
   }
 
-  auto input_snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto input_snapshot = inputs[0]->GetSnapshot("ColorMatrix", renderer, entity);
   if (!input_snapshot.has_value()) {
     return std::nullopt;
   }

diff --git a/impeller/entity/contents/filters/filter_contents.cc b/impeller/entity/contents/filters/filter_contents.cc
@@ -242,12 +242,14 @@ std::optional<Snapshot> FilterContents::RenderToSnapshot(
     const ContentContext& renderer,
     const Entity& entity,
     const std::optional<SamplerDescriptor>& sampler_descriptor,
-    bool msaa_enabled) const {
+    bool msaa_enabled,
+    const std::string& label) const {
   // Resolve the render instruction (entity) from the filter and render it to a
   // snapshot.
   if (std::optional<Entity> result = GetEntity(renderer, entity);
       result.has_value()) {
-    return result->GetContents()->RenderToSnapshot(renderer, result.value());
+    return result->GetContents()->RenderToSnapshot(renderer, result.value(),
+                                                   std::nullopt, true, label);
   }
 
   return std::nullopt;

diff --git a/impeller/entity/contents/filters/filter_contents.h b/impeller/entity/contents/filters/filter_contents.h
@@ -126,7 +126,8 @@ class FilterContents : public Contents {
       const ContentContext& renderer,
       const Entity& entity,
       const std::optional<SamplerDescriptor>& sampler_descriptor = std::nullopt,
-      bool msaa_enabled = true) const override;
+      bool msaa_enabled = true,
+      const std::string& label = "Filter Snapshot") const override;
 
   virtual Matrix GetLocalTransform(const Matrix& parent_transform) const;
 

diff --git a/impeller/entity/contents/filters/gaussian_blur_filter_contents.cc b/impeller/entity/contents/filters/gaussian_blur_filter_contents.cc
@@ -100,7 +100,8 @@ std::optional<Entity> DirectionalGaussianBlurFilterContents::RenderFilter(
 
   // Input 0 snapshot.
 
-  auto input_snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto input_snapshot =
+      inputs[0]->GetSnapshot("GaussianBlur", renderer, entity);
   if (!input_snapshot.has_value()) {
     return std::nullopt;
   }
@@ -148,7 +149,8 @@ std::optional<Entity> DirectionalGaussianBlurFilterContents::RenderFilter(
   // Source override snapshot.
 
   auto source = source_override_ ? source_override_ : inputs[0];
-  auto source_snapshot = source->GetSnapshot(renderer, entity);
+  auto source_snapshot =
+      source->GetSnapshot("GaussianBlur(Override)", renderer, entity);
   if (!source_snapshot.has_value()) {
     return std::nullopt;
   }

diff --git a/impeller/entity/contents/filters/inputs/contents_filter_input.cc b/impeller/entity/contents/filters/inputs/contents_filter_input.cc
@@ -7,6 +7,8 @@
 #include <optional>
 #include <utility>
 
+#include "impeller/base/strings.h"
+
 namespace impeller {
 
 ContentsFilterInput::ContentsFilterInput(std::shared_ptr<Contents> contents,
@@ -20,11 +22,13 @@ FilterInput::Variant ContentsFilterInput::GetInput() const {
 }
 
 std::optional<Snapshot> ContentsFilterInput::GetSnapshot(
+    const std::string& label,
     const ContentContext& renderer,
     const Entity& entity) const {
   if (!snapshot_.has_value()) {
-    snapshot_ = contents_->RenderToSnapshot(renderer, entity, std::nullopt,
-                                            msaa_enabled_);
+    snapshot_ = contents_->RenderToSnapshot(
+        renderer, entity, std::nullopt, msaa_enabled_,
+        SPrintF("Contents to %s Filter Snapshot", label.c_str()));
   }
   return snapshot_;
 }

diff --git a/impeller/entity/contents/filters/inputs/contents_filter_input.h b/impeller/entity/contents/filters/inputs/contents_filter_input.h
@@ -16,7 +16,8 @@ class ContentsFilterInput final : public FilterInput {
   Variant GetInput() const override;
 
   // |FilterInput|
-  std::optional<Snapshot> GetSnapshot(const ContentContext& renderer,
+  std::optional<Snapshot> GetSnapshot(const std::string& label,
+                                      const ContentContext& renderer,
                                       const Entity& entity) const override;
 
   // |FilterInput|

diff --git a/impeller/entity/contents/filters/inputs/filter_contents_filter_input.cc b/impeller/entity/contents/filters/inputs/filter_contents_filter_input.cc
@@ -6,6 +6,7 @@
 
 #include <utility>
 
+#include "impeller/base/strings.h"
 #include "impeller/entity/contents/filters/filter_contents.h"
 
 namespace impeller {
@@ -21,10 +22,13 @@ FilterInput::Variant FilterContentsFilterInput::GetInput() const {
 }
 
 std::optional<Snapshot> FilterContentsFilterInput::GetSnapshot(
+    const std::string& label,
     const ContentContext& renderer,
     const Entity& entity) const {
   if (!snapshot_.has_value()) {
-    snapshot_ = filter_->RenderToSnapshot(renderer, entity);
+    snapshot_ = filter_->RenderToSnapshot(
+        renderer, entity, std::nullopt, true,
+        SPrintF("Filter to %s Filter Snapshot", label.c_str()));
   }
   return snapshot_;
 }

diff --git a/impeller/entity/contents/filters/inputs/filter_contents_filter_input.h b/impeller/entity/contents/filters/inputs/filter_contents_filter_input.h
@@ -16,7 +16,8 @@ class FilterContentsFilterInput final : public FilterInput {
   Variant GetInput() const override;
 
   // |FilterInput|
-  std::optional<Snapshot> GetSnapshot(const ContentContext& renderer,
+  std::optional<Snapshot> GetSnapshot(const std::string& label,
+                                      const ContentContext& renderer,
                                       const Entity& entity) const override;
 
   // |FilterInput|

diff --git a/impeller/entity/contents/filters/inputs/filter_input.h b/impeller/entity/contents/filters/inputs/filter_input.h
@@ -45,7 +45,8 @@ class FilterInput {
 
   virtual Variant GetInput() const = 0;
 
-  virtual std::optional<Snapshot> GetSnapshot(const ContentContext& renderer,
+  virtual std::optional<Snapshot> GetSnapshot(const std::string& label,
+                                              const ContentContext& renderer,
                                               const Entity& entity) const = 0;
 
   std::optional<Rect> GetLocalCoverage(const Entity& entity) const;

diff --git a/impeller/entity/contents/filters/inputs/texture_filter_input.cc b/impeller/entity/contents/filters/inputs/texture_filter_input.cc
@@ -21,6 +21,7 @@ FilterInput::Variant TextureFilterInput::GetInput() const {
 }
 
 std::optional<Snapshot> TextureFilterInput::GetSnapshot(
+    const std::string& label,
     const ContentContext& renderer,
     const Entity& entity) const {
   auto snapshot =

diff --git a/impeller/entity/contents/filters/inputs/texture_filter_input.h b/impeller/entity/contents/filters/inputs/texture_filter_input.h
@@ -18,7 +18,8 @@ class TextureFilterInput final : public FilterInput {
   Variant GetInput() const override;
 
   // |FilterInput|
-  std::optional<Snapshot> GetSnapshot(const ContentContext& renderer,
+  std::optional<Snapshot> GetSnapshot(const std::string& label,
+                                      const ContentContext& renderer,
                                       const Entity& entity) const override;
 
   // |FilterInput|

diff --git a/impeller/entity/contents/filters/linear_to_srgb_filter_contents.cc b/impeller/entity/contents/filters/linear_to_srgb_filter_contents.cc
@@ -31,7 +31,8 @@ std::optional<Entity> LinearToSrgbFilterContents::RenderFilter(
   using VS = LinearToSrgbFilterPipeline::VertexShader;
   using FS = LinearToSrgbFilterPipeline::FragmentShader;
 
-  auto input_snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto input_snapshot =
+      inputs[0]->GetSnapshot("LinearToSrgb", renderer, entity);
   if (!input_snapshot.has_value()) {
     return std::nullopt;
   }

diff --git a/impeller/entity/contents/filters/local_matrix_filter_contents.cc b/impeller/entity/contents/filters/local_matrix_filter_contents.cc
@@ -25,8 +25,9 @@ std::optional<Entity> LocalMatrixFilterContents::RenderFilter(
     const Entity& entity,
     const Matrix& effect_transform,
     const Rect& coverage) const {
-  return Entity::FromSnapshot(inputs[0]->GetSnapshot(renderer, entity),
-                              entity.GetBlendMode(), entity.GetStencilDepth());
+  return Entity::FromSnapshot(
+      inputs[0]->GetSnapshot("LocalMatrix", renderer, entity),
+      entity.GetBlendMode(), entity.GetStencilDepth());
 }
 
 }  // namespace impeller
diff --git a/impeller/entity/contents/filters/matrix_filter_contents.cc b/impeller/entity/contents/filters/matrix_filter_contents.cc
@@ -28,7 +28,7 @@ std::optional<Entity> MatrixFilterContents::RenderFilter(
     const Entity& entity,
     const Matrix& effect_transform,
     const Rect& coverage) const {
-  auto snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto snapshot = inputs[0]->GetSnapshot("Matrix", renderer, entity);
   if (!snapshot.has_value()) {
     return std::nullopt;
   }

diff --git a/impeller/entity/contents/filters/morphology_filter_contents.cc b/impeller/entity/contents/filters/morphology_filter_contents.cc
@@ -51,7 +51,7 @@ std::optional<Entity> DirectionalMorphologyFilterContents::RenderFilter(
     return std::nullopt;
   }
 
-  auto input_snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto input_snapshot = inputs[0]->GetSnapshot("Morphology", renderer, entity);
   if (!input_snapshot.has_value()) {
     return std::nullopt;
   }

diff --git a/impeller/entity/contents/filters/srgb_to_linear_filter_contents.cc b/impeller/entity/contents/filters/srgb_to_linear_filter_contents.cc
@@ -31,7 +31,8 @@ std::optional<Entity> SrgbToLinearFilterContents::RenderFilter(
   using VS = SrgbToLinearFilterPipeline::VertexShader;
   using FS = SrgbToLinearFilterPipeline::FragmentShader;
 
-  auto input_snapshot = inputs[0]->GetSnapshot(renderer, entity);
+  auto input_snapshot =
+      inputs[0]->GetSnapshot("SrgbToLinear", renderer, entity);
   if (!input_snapshot.has_value()) {
     return std::nullopt;
   }

diff --git a/impeller/entity/contents/filters/yuv_to_rgb_filter_contents.cc b/impeller/entity/contents/filters/yuv_to_rgb_filter_contents.cc
@@ -50,8 +50,10 @@ std::optional<Entity> YUVToRGBFilterContents::RenderFilter(
   using VS = YUVToRGBFilterPipeline::VertexShader;
   using FS = YUVToRGBFilterPipeline::FragmentShader;
 
-  auto y_input_snapshot = inputs[0]->GetSnapshot(renderer, entity);
-  auto uv_input_snapshot = inputs[1]->GetSnapshot(renderer, entity);
+  auto y_input_snapshot =
+      inputs[0]->GetSnapshot("YUVToRGB(Y)", renderer, entity);
+  auto uv_input_snapshot =
+      inputs[1]->GetSnapshot("YUVToRGB(UV)", renderer, entity);
   if (!y_input_snapshot.has_value() || !uv_input_snapshot.has_value()) {
     return std::nullopt;
   }

diff --git a/impeller/entity/contents/framebuffer_blend_contents.cc b/impeller/entity/contents/framebuffer_blend_contents.cc
@@ -41,7 +41,9 @@ bool FramebufferBlendContents::Render(const ContentContext& renderer,
 
   auto& host_buffer = pass.GetTransientsBuffer();
 
-  auto src_snapshot = child_contents_->RenderToSnapshot(renderer, entity);
+  auto src_snapshot =
+      child_contents_->RenderToSnapshot(renderer, entity, std::nullopt, true,
+                                        "FramebufferBlendContents Snapshot");
   if (!src_snapshot.has_value()) {
     return true;
   }

diff --git a/impeller/entity/contents/texture_contents.cc b/impeller/entity/contents/texture_contents.cc
@@ -77,7 +77,8 @@ std::optional<Snapshot> TextureContents::RenderToSnapshot(
     const ContentContext& renderer,
     const Entity& entity,
     const std::optional<SamplerDescriptor>& sampler_descriptor,
-    bool msaa_enabled) const {
+    bool msaa_enabled,
+    const std::string& label) const {
   // Passthrough textures that have simple rectangle paths and complete source
   // rects.
   auto bounds = rect_;
@@ -94,7 +95,8 @@ std::optional<Snapshot> TextureContents::RenderToSnapshot(
         .opacity = opacity};
   }
   return Contents::RenderToSnapshot(
-      renderer, entity, sampler_descriptor.value_or(sampler_descriptor_));
+      renderer, entity, sampler_descriptor.value_or(sampler_descriptor_), true,
+      label);
 }
 
 static TextureFillVertexShader::PerVertexData ComputeVertexData(

diff --git a/impeller/entity/contents/texture_contents.h b/impeller/entity/contents/texture_contents.h
@@ -58,7 +58,8 @@ class TextureContents final : public Contents {
       const ContentContext& renderer,
       const Entity& entity,
       const std::optional<SamplerDescriptor>& sampler_descriptor = std::nullopt,
-      bool msaa_enabled = true) const override;
+      bool msaa_enabled = true,
+      const std::string& label = "Texture Snapshot") const override;
 
   // |Contents|
   bool Render(const ContentContext& renderer,

diff --git a/impeller/entity/contents/tiled_texture_contents.cc b/impeller/entity/contents/tiled_texture_contents.cc
@@ -65,7 +65,8 @@ TiledTextureContents::CreateFilterTexture(
     const ContentContext& renderer) const {
   const ColorFilterProc& filter = color_filter_.value();
   auto color_filter_contents = filter(FilterInput::Make(texture_));
-  auto snapshot = color_filter_contents->RenderToSnapshot(renderer, Entity());
+  auto snapshot = color_filter_contents->RenderToSnapshot(
+      renderer, Entity(), std::nullopt, true, "TiledTextureContents Snapshot");
   if (snapshot.has_value()) {
     return snapshot.value().texture;
   }

diff --git a/impeller/entity/contents/vertices_contents.cc b/impeller/entity/contents/vertices_contents.cc
@@ -107,7 +107,8 @@ bool VerticesUVContents::Render(const ContentContext& renderer,
 
   auto src_contents = parent_.GetSourceContents();
 
-  auto snapshot = src_contents->RenderToSnapshot(renderer, entity);
+  auto snapshot = src_contents->RenderToSnapshot(
+      renderer, entity, std::nullopt, true, "VerticesUVContents Snapshot");
   if (!snapshot.has_value()) {
     return false;
   }