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// Copyright 2017 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 COMPONENTS_VIZ_SERVICE_DISPLAY_SCOPED_RENDER_PASS_TEXTURE_H_
#define COMPONENTS_VIZ_SERVICE_DISPLAY_SCOPED_RENDER_PASS_TEXTURE_H_
#include "base/macros.h"
#include "components/viz/common/resources/resource_format.h"
#include "components/viz/common/resources/resource_texture_hint.h"
#include "components/viz/service/viz_service_export.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "ui/gfx/color_space.h"
#include "ui/gfx/geometry/size.h"
namespace viz {
class ContextProvider;
// ScopedRenderPassTexture is resource used inside the same GL context and will
// not being sent into another process. So no need to create fence and mailbox
// for these resources.
class VIZ_SERVICE_EXPORT ScopedRenderPassTexture {
public:
ScopedRenderPassTexture();
ScopedRenderPassTexture(ContextProvider* context_provider,
const gfx::Size& size,
ResourceFormat format,
const gfx::ColorSpace& color_space,
bool mipmap);
~ScopedRenderPassTexture();
ScopedRenderPassTexture(ScopedRenderPassTexture&& other);
ScopedRenderPassTexture& operator=(ScopedRenderPassTexture&& other);
void BindForSampling();
GLuint id() const { return gl_id_; }
const gfx::Size& size() const { return size_; }
bool mipmap() const { return mipmap_; }
const gfx::ColorSpace& color_space() const { return color_space_; }
void set_generate_mipmap() { mipmap_state_ = GENERATE; }
private:
void Free();
ContextProvider* context_provider_ = nullptr;
// The GL texture id.
GLuint gl_id_ = 0;
// Size of the resource in pixels.
gfx::Size size_;
// When true, and immutable textures are used, this specifies to
// generate mipmaps at powers of 2.
bool mipmap_ = false;
// TODO(xing.xu): Remove this and set the color space when we draw the
// RenderPassDrawQuad.
gfx::ColorSpace color_space_;
enum MipmapState { INVALID, GENERATE, VALID };
MipmapState mipmap_state_ = INVALID;
};
} // namespace viz
#endif // COMPONENTS_VIZ_SERVICE_DISPLAY_SCOPED_RENDER_PASS_TEXTURE_H_
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