blob: fa6c6782f40cb09489d1c5b4ffccb6d549ef3342 [file] [log] [blame]
// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "impeller/entity/contents/content_context.h"
#include <sstream>
#include "impeller/entity/entity.h"
#include "impeller/renderer/command_buffer.h"
#include "impeller/renderer/formats.h"
#include "impeller/renderer/render_pass.h"
#include "impeller/renderer/render_target.h"
#include "impeller/tessellator/tessellator.h"
namespace impeller {
void ContentContextOptions::ApplyToPipelineDescriptor(
PipelineDescriptor& desc) const {
auto pipeline_blend = blend_mode;
if (blend_mode > Entity::kLastPipelineBlendMode) {
VALIDATION_LOG << "Cannot use blend mode " << static_cast<int>(blend_mode)
<< " as a pipeline blend.";
pipeline_blend = BlendMode::kSourceOver;
}
desc.SetSampleCount(sample_count);
ColorAttachmentDescriptor color0 = *desc.GetColorAttachmentDescriptor(0u);
color0.alpha_blend_op = BlendOperation::kAdd;
color0.color_blend_op = BlendOperation::kAdd;
switch (pipeline_blend) {
case BlendMode::kClear:
color0.dst_alpha_blend_factor = BlendFactor::kZero;
color0.dst_color_blend_factor = BlendFactor::kZero;
color0.src_alpha_blend_factor = BlendFactor::kZero;
color0.src_color_blend_factor = BlendFactor::kZero;
break;
case BlendMode::kSource:
color0.dst_alpha_blend_factor = BlendFactor::kZero;
color0.dst_color_blend_factor = BlendFactor::kZero;
color0.src_alpha_blend_factor = BlendFactor::kOne;
color0.src_color_blend_factor = BlendFactor::kOne;
break;
case BlendMode::kDestination:
color0.dst_alpha_blend_factor = BlendFactor::kOne;
color0.dst_color_blend_factor = BlendFactor::kOne;
color0.src_alpha_blend_factor = BlendFactor::kZero;
color0.src_color_blend_factor = BlendFactor::kZero;
break;
case BlendMode::kSourceOver:
color0.dst_alpha_blend_factor = BlendFactor::kOneMinusSourceAlpha;
color0.dst_color_blend_factor = BlendFactor::kOneMinusSourceAlpha;
color0.src_alpha_blend_factor = BlendFactor::kOne;
color0.src_color_blend_factor = BlendFactor::kOne;
break;
case BlendMode::kDestinationOver:
color0.dst_alpha_blend_factor = BlendFactor::kOne;
color0.dst_color_blend_factor = BlendFactor::kOne;
color0.src_alpha_blend_factor = BlendFactor::kOneMinusDestinationAlpha;
color0.src_color_blend_factor = BlendFactor::kOneMinusDestinationAlpha;
break;
case BlendMode::kSourceIn:
color0.dst_alpha_blend_factor = BlendFactor::kZero;
color0.dst_color_blend_factor = BlendFactor::kZero;
color0.src_alpha_blend_factor = BlendFactor::kDestinationAlpha;
color0.src_color_blend_factor = BlendFactor::kDestinationAlpha;
break;
case BlendMode::kDestinationIn:
color0.dst_alpha_blend_factor = BlendFactor::kSourceAlpha;
color0.dst_color_blend_factor = BlendFactor::kSourceAlpha;
color0.src_alpha_blend_factor = BlendFactor::kZero;
color0.src_color_blend_factor = BlendFactor::kZero;
break;
case BlendMode::kSourceOut:
color0.dst_alpha_blend_factor = BlendFactor::kZero;
color0.dst_color_blend_factor = BlendFactor::kZero;
color0.src_alpha_blend_factor = BlendFactor::kOneMinusDestinationAlpha;
color0.src_color_blend_factor = BlendFactor::kOneMinusDestinationAlpha;
break;
case BlendMode::kDestinationOut:
color0.dst_alpha_blend_factor = BlendFactor::kOneMinusSourceAlpha;
color0.dst_color_blend_factor = BlendFactor::kOneMinusSourceAlpha;
color0.src_alpha_blend_factor = BlendFactor::kZero;
color0.src_color_blend_factor = BlendFactor::kZero;
break;
case BlendMode::kSourceATop:
color0.dst_alpha_blend_factor = BlendFactor::kOneMinusSourceAlpha;
color0.dst_color_blend_factor = BlendFactor::kOneMinusSourceAlpha;
color0.src_alpha_blend_factor = BlendFactor::kDestinationAlpha;
color0.src_color_blend_factor = BlendFactor::kDestinationAlpha;
break;
case BlendMode::kDestinationATop:
color0.dst_alpha_blend_factor = BlendFactor::kSourceAlpha;
color0.dst_color_blend_factor = BlendFactor::kSourceAlpha;
color0.src_alpha_blend_factor = BlendFactor::kOneMinusDestinationAlpha;
color0.src_color_blend_factor = BlendFactor::kOneMinusDestinationAlpha;
break;
case BlendMode::kXor:
color0.dst_alpha_blend_factor = BlendFactor::kOneMinusSourceAlpha;
color0.dst_color_blend_factor = BlendFactor::kOneMinusSourceAlpha;
color0.src_alpha_blend_factor = BlendFactor::kOneMinusDestinationAlpha;
color0.src_color_blend_factor = BlendFactor::kOneMinusDestinationAlpha;
break;
case BlendMode::kPlus:
color0.dst_alpha_blend_factor = BlendFactor::kOne;
color0.dst_color_blend_factor = BlendFactor::kOne;
color0.src_alpha_blend_factor = BlendFactor::kOne;
color0.src_color_blend_factor = BlendFactor::kOne;
break;
case BlendMode::kModulate:
color0.dst_alpha_blend_factor = BlendFactor::kSourceAlpha;
color0.dst_color_blend_factor = BlendFactor::kSourceColor;
color0.src_alpha_blend_factor = BlendFactor::kZero;
color0.src_color_blend_factor = BlendFactor::kZero;
break;
default:
FML_UNREACHABLE();
}
desc.SetColorAttachmentDescriptor(0u, color0);
if (desc.GetFrontStencilAttachmentDescriptor().has_value()) {
StencilAttachmentDescriptor stencil =
desc.GetFrontStencilAttachmentDescriptor().value();
stencil.stencil_compare = stencil_compare;
stencil.depth_stencil_pass = stencil_operation;
desc.SetStencilAttachmentDescriptors(stencil);
}
desc.SetPrimitiveType(primitive_type);
}
template <typename PipelineT>
static std::unique_ptr<PipelineT> CreateDefaultPipeline(
const Context& context) {
auto desc = PipelineT::Builder::MakeDefaultPipelineDescriptor(context);
if (!desc.has_value()) {
return nullptr;
}
// Apply default ContentContextOptions to the descriptor.
ContentContextOptions{}.ApplyToPipelineDescriptor(*desc);
return std::make_unique<PipelineT>(context, desc);
}
ContentContext::ContentContext(std::shared_ptr<Context> context)
: context_(std::move(context)),
tessellator_(std::make_shared<Tessellator>()),
glyph_atlas_context_(std::make_shared<GlyphAtlasContext>()) {
if (!context_ || !context_->IsValid()) {
return;
}
solid_fill_pipelines_[{}] =
CreateDefaultPipeline<SolidFillPipeline>(*context_);
linear_gradient_fill_pipelines_[{}] =
CreateDefaultPipeline<LinearGradientFillPipeline>(*context_);
radial_gradient_fill_pipelines_[{}] =
CreateDefaultPipeline<RadialGradientFillPipeline>(*context_);
if (context_->GetBackendFeatures().ssbo_support) {
linear_gradient_ssbo_fill_pipelines_[{}] =
CreateDefaultPipeline<LinearGradientSSBOFillPipeline>(*context_);
radial_gradient_ssbo_fill_pipelines_[{}] =
CreateDefaultPipeline<RadialGradientSSBOFillPipeline>(*context_);
sweep_gradient_ssbo_fill_pipelines_[{}] =
CreateDefaultPipeline<SweepGradientSSBOFillPipeline>(*context_);
}
sweep_gradient_fill_pipelines_[{}] =
CreateDefaultPipeline<SweepGradientFillPipeline>(*context_);
rrect_blur_pipelines_[{}] =
CreateDefaultPipeline<RRectBlurPipeline>(*context_);
texture_blend_pipelines_[{}] =
CreateDefaultPipeline<BlendPipeline>(*context_);
blend_color_pipelines_[{}] =
CreateDefaultPipeline<BlendColorPipeline>(*context_);
blend_colorburn_pipelines_[{}] =
CreateDefaultPipeline<BlendColorBurnPipeline>(*context_);
blend_colordodge_pipelines_[{}] =
CreateDefaultPipeline<BlendColorDodgePipeline>(*context_);
blend_darken_pipelines_[{}] =
CreateDefaultPipeline<BlendDarkenPipeline>(*context_);
blend_difference_pipelines_[{}] =
CreateDefaultPipeline<BlendDifferencePipeline>(*context_);
blend_exclusion_pipelines_[{}] =
CreateDefaultPipeline<BlendExclusionPipeline>(*context_);
blend_hardlight_pipelines_[{}] =
CreateDefaultPipeline<BlendHardLightPipeline>(*context_);
blend_hue_pipelines_[{}] = CreateDefaultPipeline<BlendHuePipeline>(*context_);
blend_lighten_pipelines_[{}] =
CreateDefaultPipeline<BlendLightenPipeline>(*context_);
blend_luminosity_pipelines_[{}] =
CreateDefaultPipeline<BlendLuminosityPipeline>(*context_);
blend_multiply_pipelines_[{}] =
CreateDefaultPipeline<BlendMultiplyPipeline>(*context_);
blend_overlay_pipelines_[{}] =
CreateDefaultPipeline<BlendOverlayPipeline>(*context_);
blend_saturation_pipelines_[{}] =
CreateDefaultPipeline<BlendSaturationPipeline>(*context_);
blend_screen_pipelines_[{}] =
CreateDefaultPipeline<BlendScreenPipeline>(*context_);
blend_softlight_pipelines_[{}] =
CreateDefaultPipeline<BlendSoftLightPipeline>(*context_);
texture_pipelines_[{}] = CreateDefaultPipeline<TexturePipeline>(*context_);
tiled_texture_pipelines_[{}] =
CreateDefaultPipeline<TiledTexturePipeline>(*context_);
gaussian_blur_pipelines_[{}] =
CreateDefaultPipeline<GaussianBlurPipeline>(*context_);
border_mask_blur_pipelines_[{}] =
CreateDefaultPipeline<BorderMaskBlurPipeline>(*context_);
morphology_filter_pipelines_[{}] =
CreateDefaultPipeline<MorphologyFilterPipeline>(*context_);
color_matrix_color_filter_pipelines_[{}] =
CreateDefaultPipeline<ColorMatrixColorFilterPipeline>(*context_);
linear_to_srgb_filter_pipelines_[{}] =
CreateDefaultPipeline<LinearToSrgbFilterPipeline>(*context_);
srgb_to_linear_filter_pipelines_[{}] =
CreateDefaultPipeline<SrgbToLinearFilterPipeline>(*context_);
glyph_atlas_pipelines_[{}] =
CreateDefaultPipeline<GlyphAtlasPipeline>(*context_);
glyph_atlas_sdf_pipelines_[{}] =
CreateDefaultPipeline<GlyphAtlasSdfPipeline>(*context_);
geometry_color_pipelines_[{}] =
CreateDefaultPipeline<GeometryColorPipeline>(*context_);
geometry_position_pipelines_[{}] =
CreateDefaultPipeline<GeometryPositionPipeline>(*context_);
atlas_pipelines_[{}] = CreateDefaultPipeline<AtlasPipeline>(*context_);
yuv_to_rgb_filter_pipelines_[{}] =
CreateDefaultPipeline<YUVToRGBFilterPipeline>(*context_);
if (solid_fill_pipelines_[{}]->GetDescriptor().has_value()) {
auto clip_pipeline_descriptor =
solid_fill_pipelines_[{}]->GetDescriptor().value();
clip_pipeline_descriptor.SetLabel("Clip Pipeline");
// Disable write to all color attachments.
auto color_attachments =
clip_pipeline_descriptor.GetColorAttachmentDescriptors();
for (auto& color_attachment : color_attachments) {
color_attachment.second.write_mask =
static_cast<uint64_t>(ColorWriteMask::kNone);
}
clip_pipeline_descriptor.SetColorAttachmentDescriptors(
std::move(color_attachments));
clip_pipelines_[{}] =
std::make_unique<ClipPipeline>(*context_, clip_pipeline_descriptor);
} else {
return;
}
is_valid_ = true;
}
ContentContext::~ContentContext() = default;
bool ContentContext::IsValid() const {
return is_valid_;
}
std::shared_ptr<Texture> ContentContext::MakeSubpass(
ISize texture_size,
const SubpassCallback& subpass_callback) const {
auto context = GetContext();
RenderTarget subpass_target;
if (context->SupportsOffscreenMSAA()) {
subpass_target = RenderTarget::CreateOffscreenMSAA(*context, texture_size);
} else {
subpass_target = RenderTarget::CreateOffscreen(*context, texture_size);
}
auto subpass_texture = subpass_target.GetRenderTargetTexture();
if (!subpass_texture) {
return nullptr;
}
auto sub_command_buffer = context->CreateCommandBuffer();
sub_command_buffer->SetLabel("Offscreen Contents Command Buffer");
if (!sub_command_buffer) {
return nullptr;
}
auto sub_renderpass = sub_command_buffer->CreateRenderPass(subpass_target);
if (!sub_renderpass) {
return nullptr;
}
sub_renderpass->SetLabel("OffscreenContentsPass");
if (!subpass_callback(*this, *sub_renderpass)) {
return nullptr;
}
if (!sub_renderpass->EncodeCommands()) {
return nullptr;
}
if (!sub_command_buffer->SubmitCommands()) {
return nullptr;
}
return subpass_texture;
}
std::shared_ptr<Tessellator> ContentContext::GetTessellator() const {
return tessellator_;
}
std::shared_ptr<GlyphAtlasContext> ContentContext::GetGlyphAtlasContext()
const {
return glyph_atlas_context_;
}
std::shared_ptr<Context> ContentContext::GetContext() const {
return context_;
}
const BackendFeatures& ContentContext::GetBackendFeatures() const {
return context_->GetBackendFeatures();
}
} // namespace impeller