| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include "Layer.h" |
| |
| #include "Texture.h" |
| |
| namespace android { |
| namespace uirenderer { |
| |
| // Forward declarations |
| class Caches; |
| |
| /** |
| * A layer has dimensions and is backed by an OpenGL texture or FBO. |
| */ |
| class GlLayer : public Layer { |
| public: |
| GlLayer(RenderState& renderState, uint32_t layerWidth, uint32_t layerHeight, |
| sk_sp<SkColorFilter> colorFilter, int alpha, SkBlendMode mode, bool blend); |
| virtual ~GlLayer(); |
| |
| uint32_t getWidth() const override { return texture.mWidth; } |
| |
| uint32_t getHeight() const override { return texture.mHeight; } |
| |
| void setSize(uint32_t width, uint32_t height) override { |
| texture.updateLayout(width, height, texture.internalFormat(), texture.format(), |
| texture.target()); |
| } |
| |
| void setBlend(bool blend) override { texture.blend = blend; } |
| |
| bool isBlend() const override { return texture.blend; } |
| |
| inline GLuint getTextureId() const { return texture.id(); } |
| |
| inline GLenum getRenderTarget() const { return texture.target(); } |
| |
| void setRenderTarget(GLenum renderTarget); |
| |
| void generateTexture(); |
| |
| /** |
| * Lost the GL context but the layer is still around, mark it invalid internally |
| * so the dtor knows not to do any GL work |
| */ |
| void onGlContextLost(); |
| |
| private: |
| Caches& caches; |
| |
| /** |
| * The texture backing this layer. |
| */ |
| Texture texture; |
| }; // struct GlLayer |
| |
| }; // namespace uirenderer |
| }; // namespace android |