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// Copyright 2022 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_OZONE_COMMON_NATIVE_PIXMAP_EGL_BINDING_H_
#define UI_OZONE_COMMON_NATIVE_PIXMAP_EGL_BINDING_H_
#include <memory>
#include "base/threading/thread_checker.h"
#include "ui/gfx/color_space.h"
#include "ui/gfx/native_pixmap.h"
#include "ui/gl/scoped_egl_image.h"
#include "ui/ozone/public/native_pixmap_gl_binding.h"
namespace ui {
// A binding maintained between NativePixmap and GL Textures in Ozone.
class NativePixmapEGLBinding : public NativePixmapGLBinding {
public:
NativePixmapEGLBinding(const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferPlane plane);
~NativePixmapEGLBinding() override;
static bool IsBufferFormatSupported(gfx::BufferFormat format);
// Create an EGLImage from a given NativePixmap and plane and bind
// |texture_id| to |target| followed by binding the image to |target|. The
// color space is for the external sampler: When we sample the YUV buffer as
// RGB, we need to tell it the encoding (BT.601, BT.709, or BT.2020) and range
// (limited or null), and |color_space| conveys this.
static std::unique_ptr<NativePixmapGLBinding> Create(
scoped_refptr<gfx::NativePixmap> pixmap,
gfx::BufferFormat plane_format,
gfx::BufferPlane plane,
gfx::Size plane_size,
const gfx::ColorSpace& color_space,
GLenum target,
GLuint texture_id);
private:
// Create an EGLImage from a given NativePixmap and bind |texture_id| to
// |target| followed by binding the image to |target|. This EGLImage can be
// converted to a GL texture.
bool InitializeFromNativePixmap(scoped_refptr<gfx::NativePixmap> pixmap,
const gfx::ColorSpace& color_space,
GLenum target,
GLuint texture_id);
gl::ScopedEGLImage egl_image_;
const gfx::Size size_;
THREAD_CHECKER(thread_checker_);
gfx::BufferFormat format_;
scoped_refptr<gfx::NativePixmap> pixmap_;
gfx::BufferPlane plane_;
};
} // namespace ui
#endif // UI_OZONE_COMMON_NATIVE_PIXMAP_EGL_BINDING_H_
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