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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/vr/ui_element_renderer.h"
#include <math.h>
#include <algorithm>
#include <string>
#include "base/trace_event/trace_event.h"
#include "chrome/browser/vr/renderers/base_quad_renderer.h"
#include "chrome/browser/vr/renderers/base_renderer.h"
#include "chrome/browser/vr/renderers/grid_renderer.h"
#include "chrome/browser/vr/renderers/radial_gradient_quad_renderer.h"
#include "chrome/browser/vr/renderers/textured_quad_renderer.h"
#include "ui/gfx/geometry/point3_f.h"
#include "ui/gfx/geometry/vector3d_f.h"
namespace vr {
UiElementRenderer::UiElementRenderer() : UiElementRenderer(true) {}
UiElementRenderer::UiElementRenderer(bool use_gl) {
if (!use_gl)
return;
Init();
BaseQuadRenderer::CreateBuffers();
TexturedQuadRenderer::CreateBuffers();
}
UiElementRenderer::~UiElementRenderer() = default;
void UiElementRenderer::Init() {
textured_quad_renderer_ = std::make_unique<TexturedQuadRenderer>();
radial_gradient_quad_renderer_ =
std::make_unique<RadialGradientQuadRenderer>();
gradient_grid_renderer_ = std::make_unique<GridRenderer>();
}
void UiElementRenderer::DrawTexturedQuad(
int texture_data_handle,
int overlay_texture_data_handle,
const gfx::Transform& model_view_proj_matrix,
const gfx::RectF& clip_rect,
float opacity,
const gfx::SizeF& element_size,
float corner_radius,
bool blend) {
TRACE_EVENT0("gpu", "UiElementRenderer::DrawTexturedQuad");
// TODO(vollick): handle drawing this degenerate situation crbug.com/768922
if (corner_radius * 2.0 > element_size.width() ||
corner_radius * 2.0 > element_size.height()) {
return;
}
FlushIfNecessary(textured_quad_renderer_.get());
textured_quad_renderer_->AddQuad(
texture_data_handle, overlay_texture_data_handle, model_view_proj_matrix,
clip_rect, opacity, element_size, corner_radius, blend);
}
void UiElementRenderer::DrawRadialGradientQuad(
const gfx::Transform& model_view_proj_matrix,
const SkColor edge_color,
const SkColor center_color,
const gfx::RectF& clip_rect,
float opacity,
const gfx::SizeF& element_size,
const CornerRadii& radii) {
TRACE_EVENT0("gpu", "UiElementRenderer::DrawRadialGradientQuad");
FlushIfNecessary(radial_gradient_quad_renderer_.get());
radial_gradient_quad_renderer_->Draw(model_view_proj_matrix, edge_color,
center_color, clip_rect, opacity,
element_size, radii);
}
void UiElementRenderer::DrawGradientGridQuad(
const gfx::Transform& model_view_proj_matrix,
const SkColor grid_color,
int gridline_count,
float opacity) {
TRACE_EVENT0("gpu", "UiElementRenderer::DrawGradientGridQuad");
FlushIfNecessary(gradient_grid_renderer_.get());
gradient_grid_renderer_->Draw(model_view_proj_matrix, grid_color,
gridline_count, opacity);
}
void UiElementRenderer::Flush() {
textured_quad_renderer_->Flush();
last_renderer_ = nullptr;
}
void UiElementRenderer::FlushIfNecessary(BaseRenderer* renderer) {
if (last_renderer_ && renderer != last_renderer_) {
last_renderer_->Flush();
}
last_renderer_ = renderer;
}
} // namespace vr
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