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//
// Copyright 2018 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// android_util.cpp: Utilities for the using the Android platform
#include "libANGLE/renderer/gl/egl/android/android_util.h"
namespace rx
{
namespace
{
// Taken from android/hardware_buffer.h
// https://android.googlesource.com/platform/frameworks/native/+/master/libs/nativewindow/include/android/hardware_buffer.h
// AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM AHARDWAREBUFFER_FORMAT_B4G4R4A4_UNORM,
// AHARDWAREBUFFER_FORMAT_B5G5R5A1_UNORM formats were deprecated and re-added explicitly.
// clang-format off
/**
* Buffer pixel formats.
*/
enum {
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_R8G8B8A8_UNORM
* OpenGL ES: GL_RGBA8
*/
AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM = 1,
/**
* 32 bits per pixel, 8 bits per channel format where alpha values are
* ignored (always opaque).
* Corresponding formats:
* Vulkan: VK_FORMAT_R8G8B8A8_UNORM
* OpenGL ES: GL_RGB8
*/
AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM = 2,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_R8G8B8_UNORM
* OpenGL ES: GL_RGB8
*/
AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM = 3,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_R5G6B5_UNORM_PACK16
* OpenGL ES: GL_RGB565
*/
AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM = 4,
AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM = 5,
AHARDWAREBUFFER_FORMAT_B4G4R4A4_UNORM = 6,
AHARDWAREBUFFER_FORMAT_B5G5R5A1_UNORM = 7,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_R16G16B16A16_SFLOAT
* OpenGL ES: GL_RGBA16F
*/
AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT = 0x16,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_A2B10G10R10_UNORM_PACK32
* OpenGL ES: GL_RGB10_A2
*/
AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM = 0x2b,
/**
* An opaque binary blob format that must have height 1, with width equal to
* the buffer size in bytes.
*/
AHARDWAREBUFFER_FORMAT_BLOB = 0x21,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_D16_UNORM
* OpenGL ES: GL_DEPTH_COMPONENT16
*/
AHARDWAREBUFFER_FORMAT_D16_UNORM = 0x30,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_X8_D24_UNORM_PACK32
* OpenGL ES: GL_DEPTH_COMPONENT24
*/
AHARDWAREBUFFER_FORMAT_D24_UNORM = 0x31,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_D24_UNORM_S8_UINT
* OpenGL ES: GL_DEPTH24_STENCIL8
*/
AHARDWAREBUFFER_FORMAT_D24_UNORM_S8_UINT = 0x32,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_D32_SFLOAT
* OpenGL ES: GL_DEPTH_COMPONENT32F
*/
AHARDWAREBUFFER_FORMAT_D32_FLOAT = 0x33,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_D32_SFLOAT_S8_UINT
* OpenGL ES: GL_DEPTH32F_STENCIL8
*/
AHARDWAREBUFFER_FORMAT_D32_FLOAT_S8_UINT = 0x34,
/**
* Corresponding formats:
* Vulkan: VK_FORMAT_S8_UINT
* OpenGL ES: GL_STENCIL_INDEX8
*/
AHARDWAREBUFFER_FORMAT_S8_UINT = 0x35,
};
// clang-format on
} // anonymous namespace
namespace android
{
GLenum NativePixelFormatToGLInternalFormat(int pixelFormat)
{
switch (pixelFormat)
{
case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM:
return GL_RGBA8;
case AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM:
return GL_RGB8;
case AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM:
return GL_RGB8;
case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM:
return GL_RGB565;
case AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM:
return GL_BGRA8_EXT;
case AHARDWAREBUFFER_FORMAT_B4G4R4A4_UNORM:
return GL_RGBA4;
case AHARDWAREBUFFER_FORMAT_B5G5R5A1_UNORM:
return GL_RGB5_A1;
case AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT:
return GL_RGBA16F;
case AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM:
return GL_RGB10_A2;
case AHARDWAREBUFFER_FORMAT_BLOB:
return GL_NONE;
case AHARDWAREBUFFER_FORMAT_D16_UNORM:
return GL_DEPTH_COMPONENT16;
case AHARDWAREBUFFER_FORMAT_D24_UNORM:
return GL_DEPTH_COMPONENT24;
case AHARDWAREBUFFER_FORMAT_D24_UNORM_S8_UINT:
return GL_DEPTH24_STENCIL8;
case AHARDWAREBUFFER_FORMAT_D32_FLOAT:
return GL_DEPTH_COMPONENT32F;
case AHARDWAREBUFFER_FORMAT_D32_FLOAT_S8_UINT:
return GL_DEPTH32F_STENCIL8;
case AHARDWAREBUFFER_FORMAT_S8_UINT:
return GL_STENCIL_INDEX8;
default:
return GL_NONE;
}
}
} // namespace android
} // namespace rx
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