| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // 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. |
| |
| #ifndef COBALT_RENDERER_BACKEND_EGL_FRAMEBUFFER_RENDER_TARGET_H_ |
| #define COBALT_RENDERER_BACKEND_EGL_FRAMEBUFFER_RENDER_TARGET_H_ |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "cobalt/math/size.h" |
| #include "cobalt/renderer/backend/egl/framebuffer.h" |
| #include "cobalt/renderer/backend/egl/render_target.h" |
| |
| namespace cobalt { |
| namespace renderer { |
| namespace backend { |
| |
| // A framebuffer object wrapped in a RenderTarget interface. This allows |
| // an easier path to reading pixels from the render target. |
| class FramebufferRenderTargetEGL : public RenderTargetEGL { |
| public: |
| FramebufferRenderTargetEGL(GraphicsContextEGL* graphics_context, |
| const math::Size& size) |
| : framebuffer_(graphics_context, size, GL_RGBA, GL_NONE) {} |
| |
| const math::Size& GetSize() const OVERRIDE { return framebuffer_.GetSize(); } |
| |
| // This render target does not have an EGLSurface. |
| EGLSurface GetSurface() const OVERRIDE { return EGL_NO_SURFACE; } |
| |
| // This handle is suitable for use with glBindFramebuffer. |
| intptr_t GetPlatformHandle() const OVERRIDE { |
| return framebuffer_.gl_handle(); |
| } |
| |
| // Create a depth buffer for the render target if it doesn't already have one. |
| void EnsureDepthBufferAttached(GLenum depth_format) { |
| framebuffer_.EnsureDepthBufferAttached(depth_format); |
| } |
| |
| // Get the color texture attachment of the framebuffer. |
| TextureEGL* GetColorTexture() const { |
| return framebuffer_.GetColorTexture(); |
| } |
| |
| private: |
| ~FramebufferRenderTargetEGL() OVERRIDE {} |
| |
| FramebufferEGL framebuffer_; |
| }; |
| |
| } // namespace backend |
| } // namespace renderer |
| } // namespace cobalt |
| |
| #endif // COBALT_RENDERER_BACKEND_EGL_FRAMEBUFFER_RENDER_TARGET_H_ |