| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_UI_LIB_ESCHER_VK_IMPL_FRAMEBUFFER_H_ |
| #define SRC_UI_LIB_ESCHER_VK_IMPL_FRAMEBUFFER_H_ |
| |
| #include <vulkan/vulkan.hpp> |
| |
| #include "src/ui/lib/escher/forward_declarations.h" |
| #include "src/ui/lib/escher/third_party/granite/vk/render_pass.h" |
| #include "src/ui/lib/escher/vk/render_pass_info.h" |
| |
| namespace escher { |
| namespace impl { |
| |
| // Wraps a Vulkan framebuffer object, and makes available the corresponding |
| // Vulkan render pass. |
| class Framebuffer : public Resource { |
| public: |
| static const ResourceTypeInfo kTypeInfo; |
| const ResourceTypeInfo& type_info() const override { return kTypeInfo; } |
| |
| Framebuffer(ResourceRecycler* recycler, RenderPassPtr pass, const RenderPassInfo& pass_info); |
| ~Framebuffer() override; |
| |
| vk::Framebuffer vk() const { return framebuffer_; } |
| |
| // In Vulkan, framebuffers and render passes are tightly coupled concepts; |
| // this is reflected by making the render pass available here, for convenient |
| // access by CommandBuffer/ShaderProgram, which use it to generate appropriate |
| // VkPipelines. |
| vk::RenderPass vk_render_pass() const { return render_pass_->vk(); } |
| const RenderPassPtr& render_pass() const { return render_pass_; } |
| const RenderPassInfo& render_pass_info() const { return render_pass_info_; } |
| |
| // Get the color or depth-stencil attachment identified by |index|. The color |
| // attachments indices are [0, render_pass_info().num_color_attachments - 1], |
| // and the index of the depth-stencil attachment (if any) is one greater than |
| // the highest color attachment index. |
| const ImageViewPtr& GetAttachment(uint32_t index) { |
| FXL_DCHECK(index < render_pass_info_.num_color_attachments + |
| (render_pass_info_.depth_stencil_attachment ? 1 : 0)); |
| return index < render_pass_info_.num_color_attachments |
| ? render_pass_info_.color_attachments[index] |
| : render_pass_info_.depth_stencil_attachment; |
| } |
| |
| uint32_t width() const { return width_; } |
| uint32_t height() const { return height_; } |
| vk::Extent2D extent() const { return {width_, height_}; } |
| |
| private: |
| vk::Framebuffer framebuffer_; |
| impl::RenderPassPtr render_pass_; |
| RenderPassInfo render_pass_info_; |
| uint32_t width_ = 0; |
| uint32_t height_ = 0; |
| }; |
| |
| } // namespace impl |
| } // namespace escher |
| |
| #endif // SRC_UI_LIB_ESCHER_VK_IMPL_FRAMEBUFFER_H_ |