blob: b0dd0ed2f310c7fc489ca5547a8121bee91cef8e [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 "solid_color_contents.h"
#include "impeller/entity/contents/clip_contents.h"
#include "impeller/entity/contents/content_context.h"
#include "impeller/entity/entity.h"
#include "impeller/geometry/path.h"
#include "impeller/renderer/render_pass.h"
namespace impeller {
SolidColorContents::SolidColorContents() = default;
SolidColorContents::~SolidColorContents() = default;
void SolidColorContents::SetColor(Color color) {
color_ = color;
}
const Color& SolidColorContents::GetColor() const {
return color_;
}
void SolidColorContents::SetGeometry(std::unique_ptr<Geometry> geometry) {
geometry_ = std::move(geometry);
}
std::optional<Rect> SolidColorContents::GetCoverage(
const Entity& entity) const {
if (color_.IsTransparent()) {
return std::nullopt;
}
if (geometry_ == nullptr) {
return std::nullopt;
}
return geometry_->GetCoverage(entity.GetTransformation());
};
bool SolidColorContents::ShouldRender(
const Entity& entity,
const std::optional<Rect>& stencil_coverage) const {
if (!stencil_coverage.has_value()) {
return false;
}
return Contents::ShouldRender(entity, stencil_coverage);
}
bool SolidColorContents::Render(const ContentContext& renderer,
const Entity& entity,
RenderPass& pass) const {
using VS = SolidFillPipeline::VertexShader;
using FS = SolidFillPipeline::FragmentShader;
Command cmd;
cmd.label = "Solid Fill";
cmd.stencil_reference = entity.GetStencilDepth();
auto geometry_result = geometry_->GetPositionBuffer(renderer, entity, pass);
auto options = OptionsFromPassAndEntity(pass, entity);
if (geometry_result.prevent_overdraw) {
options.stencil_compare = CompareFunction::kEqual;
options.stencil_operation = StencilOperation::kIncrementClamp;
}
options.primitive_type = geometry_result.type;
cmd.pipeline = renderer.GetSolidFillPipeline(options);
cmd.BindVertices(geometry_result.vertex_buffer);
VS::VertInfo vert_info;
vert_info.mvp = Matrix::MakeOrthographic(pass.GetRenderTargetSize()) *
entity.GetTransformation();
VS::BindVertInfo(cmd, pass.GetTransientsBuffer().EmplaceUniform(vert_info));
FS::FragInfo frag_info;
frag_info.color = color_.Premultiply();
FS::BindFragInfo(cmd, pass.GetTransientsBuffer().EmplaceUniform(frag_info));
if (!pass.AddCommand(std::move(cmd))) {
return false;
}
if (geometry_result.prevent_overdraw) {
return ClipRestoreContents().Render(renderer, entity, pass);
}
return true;
}
std::unique_ptr<SolidColorContents> SolidColorContents::Make(const Path& path,
Color color) {
auto contents = std::make_unique<SolidColorContents>();
contents->SetGeometry(Geometry::MakeFillPath(path));
contents->SetColor(color);
return contents;
}
} // namespace impeller