chromium/gpu/command_buffer/common/gles2_cmd_utils.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

// This file is here so other GLES2 related files can have a common set of
// includes where appropriate.

#ifndef GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_
#define GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_

#include <stddef.h>
#include <stdint.h>

#include <limits>
#include <string>

#include "base/check.h"
#include "base/numerics/safe_math.h"
#include "gpu/command_buffer/common/gles2_utils_export.h"

namespace gpu {
namespace gles2 {

// A 32-bit and 64-bit compatible way of converting a pointer to a
// 32-bit usigned integer, suitable to be stored in a GLuint.
inline uint32_t ToGLuint(const void* ptr) { … }

// Returns the address of the first byte after a struct.
template <typename T>
const volatile void* AddressAfterStruct(const volatile T& pod) { … }

// Returns the address of the frst byte after the struct or nullptr if size >
// immediate_data_size.
template <typename RETURN_TYPE, typename COMMAND_TYPE>
RETURN_TYPE GetImmediateDataAs(const volatile COMMAND_TYPE& pod,
                               uint32_t size,
                               uint32_t immediate_data_size) { … }

struct GLES2_UTILS_EXPORT PixelStoreParams { … };

// Utilties for GLES2 support.
class GLES2_UTILS_EXPORT GLES2Util { … };

class GLES2_UTILS_EXPORT GLSLArrayName { … };

}  // namespace gles2
}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_