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// 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_EXTENSIONS_3D_UTIL_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_EXTENSIONS_3D_UTIL_H_
#include <memory>
#include "base/macros.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/hash_set.h"
#include "third_party/blink/renderer/platform/wtf/text/string_hash.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/khronos/GLES2/gl2.h"
namespace gpu {
namespace gles2 {
class GLES2Interface;
}
}
namespace blink {
class PLATFORM_EXPORT Extensions3DUtil final {
USING_FAST_MALLOC(Extensions3DUtil);
public:
// Creates a new Extensions3DUtil. If the passed GLES2Interface has been
// spontaneously lost, returns null.
static std::unique_ptr<Extensions3DUtil> Create(gpu::gles2::GLES2Interface*);
~Extensions3DUtil();
bool IsValid() { return is_valid_; }
bool SupportsExtension(const String& name);
bool EnsureExtensionEnabled(const String& name);
bool IsExtensionEnabled(const String& name);
static bool CopyTextureCHROMIUMNeedsESSL3(GLenum dest_format);
static bool CanUseCopyTextureCHROMIUM(GLenum dest_target);
private:
Extensions3DUtil(gpu::gles2::GLES2Interface*);
void InitializeExtensions();
gpu::gles2::GLES2Interface* gl_;
HashSet<String> enabled_extensions_;
HashSet<String> requestable_extensions_;
bool is_valid_;
DISALLOW_COPY_AND_ASSIGN(Extensions3DUtil);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_GPU_EXTENSIONS_3D_UTIL_H_
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