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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GL_GL_IMAGE_D3D_H_
#define UI_GL_GL_IMAGE_D3D_H_
#include <d3d11.h>
#include <dxgi1_2.h>
#include <windows.h>
#include <wrl/client.h>
#include "base/memory/raw_ptr.h"
#include "ui/gl/gl_export.h"
#include "ui/gl/gl_image.h"
namespace gl {
class GL_EXPORT GLImageD3D : public GLImage {
public:
// Creates a GLImage backed by a D3D11 |texture| with given |size| and GL
// unsized |internal_format|, optionally associated with |swap_chain|. The
// |internal_format| and |data_type| are passed to ANGLE and used for GL
// operations. |internal_format| may be different from the internal format
// associated with the DXGI_FORMAT of the texture (e.g. RGB instead of
// BGRA_EXT for DXGI_FORMAT_B8G8R8A8_UNORM). |data_type| should match the data
// type accociated with the DXGI_FORMAT of the texture. |array_slice| is used
// when the |texture| is a D3D11 texture array, and |plane_index| is used for
// specifying the plane to bind to for multi-planar YUV textures.
// See EGL_ANGLE_d3d_texture_client_buffer spec for format restrictions.
GLImageD3D(const gfx::Size& size,
unsigned internal_format,
unsigned data_type,
const gfx::ColorSpace& color_space,
Microsoft::WRL::ComPtr<ID3D11Texture2D> texture,
size_t array_slice = 0,
size_t plane_index = 0,
Microsoft::WRL::ComPtr<IDXGISwapChain1> swap_chain = nullptr);
GLImageD3D(const GLImageD3D&) = delete;
GLImageD3D& operator=(const GLImageD3D&) = delete;
// Safe downcast. Returns nullptr on failure.
static GLImageD3D* FromGLImage(GLImage* image);
bool Initialize();
// GLImage implementation
Type GetType() const override;
void* GetEGLImage() const override;
BindOrCopy ShouldBindOrCopy() override;
gfx::Size GetSize() override;
unsigned GetInternalFormat() override;
unsigned GetDataType() override;
bool BindTexImage(unsigned target) override;
void ReleaseTexImage(unsigned target) override {}
bool CopyTexImage(unsigned target) override;
bool CopyTexSubImage(unsigned target,
const gfx::Point& offset,
const gfx::Rect& rect) override;
void Flush() override {}
void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
uint64_t process_tracing_id,
const std::string& dump_name) override;
const Microsoft::WRL::ComPtr<ID3D11Texture2D>& texture() const {
return texture_;
}
const Microsoft::WRL::ComPtr<IDXGISwapChain1>& swap_chain() const {
return swap_chain_;
}
HANDLE& shared_handle() { return shared_handle_; }
size_t array_slice() const { return array_slice_; }
size_t plane_index() const { return plane_index_; }
protected:
const gfx::Size size_;
const unsigned internal_format_; // GLenum
const unsigned data_type_; // GLenum
Microsoft::WRL::ComPtr<ID3D11Texture2D> texture_;
const size_t array_slice_;
const size_t plane_index_;
HANDLE shared_handle_ = NULL;
Microsoft::WRL::ComPtr<IDXGISwapChain1> swap_chain_;
private:
~GLImageD3D() override;
raw_ptr<void> egl_image_ = nullptr; // EGLImageKHR
};
} // namespace gl
#endif // UI_GL_GL_IMAGE_D3D_H_
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