| // Copyright 2014 The Chromium 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 UI_OZONE_PLATFORM_DRM_GPU_DRM_BUFFER_H_ |
| #define UI_OZONE_PLATFORM_DRM_GPU_DRM_BUFFER_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "base/macros.h" |
| #include "third_party/skia/include/core/SkRefCnt.h" |
| #include "ui/ozone/platform/drm/gpu/scanout_buffer.h" |
| |
| class SkCanvas; |
| struct SkImageInfo; |
| class SkSurface; |
| |
| namespace ui { |
| |
| class DrmDevice; |
| |
| // Wrapper for a DRM allocated buffer. Keeps track of the native properties of |
| // the buffer and wraps the pixel memory into a SkSurface which can be used to |
| // draw into using Skia. |
| class DrmBuffer : public ScanoutBuffer { |
| public: |
| DrmBuffer(const scoped_refptr<DrmDevice>& drm); |
| |
| // Allocates the backing pixels and wraps them in |surface_|. |info| is used |
| // to describe the buffer characteristics (size, color format). |
| // |should_register_framebuffer| is used to distinguish the buffers that are |
| // used for modesetting. |
| bool Initialize(const SkImageInfo& info, bool should_register_framebuffer); |
| |
| SkCanvas* GetCanvas() const; |
| |
| // ScanoutBuffer: |
| uint32_t GetFramebufferId() const override; |
| uint32_t GetFramebufferPixelFormat() const override; |
| uint32_t GetHandle() const override; |
| gfx::Size GetSize() const override; |
| const DrmDevice* GetDrmDevice() const override; |
| bool RequiresGlFinish() const override; |
| |
| protected: |
| ~DrmBuffer() override; |
| |
| scoped_refptr<DrmDevice> drm_; |
| |
| // Length of a row of pixels. |
| uint32_t stride_ = 0; |
| |
| // Buffer handle used by the DRM allocator. |
| uint32_t handle_ = 0; |
| |
| // Base address for memory mapping. |
| void* mmap_base_ = 0; |
| |
| // Size for memory mapping. |
| size_t mmap_size_ = 0; |
| |
| // Buffer ID used by the DRM modesettings API. This is set when the buffer is |
| // registered with the CRTC. |
| uint32_t framebuffer_ = 0; |
| |
| // Pixel format of |framebuffer_| |
| uint32_t fb_pixel_format_ = 0; |
| |
| // Wrapper around the native pixel memory. |
| sk_sp<SkSurface> surface_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DrmBuffer); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_OZONE_PLATFORM_DRM_GPU_DRM_BUFFER_H_ |