2019-11-23 20:27:39 +08:00
|
|
|
/****************************************************************************
|
|
|
|
Copyright (c) 2018-2019 Xiamen Yaji Software Co., Ltd.
|
|
|
|
|
|
|
|
http://www.cocos2d-x.org
|
|
|
|
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
|
|
in the Software without restriction, including without limitation the rights
|
|
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
|
|
all copies or substantial portions of the Software.
|
|
|
|
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
|
THE SOFTWARE.
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#include "Texture.h"
|
|
|
|
#include <cassert>
|
|
|
|
CC_BACKEND_BEGIN
|
|
|
|
|
|
|
|
#define byte(n) ((n) * 8)
|
|
|
|
#define bit(n) (n)
|
|
|
|
namespace
|
|
|
|
{
|
|
|
|
uint8_t computeBitsPerElement(PixelFormat textureFormat)
|
|
|
|
{
|
|
|
|
switch (textureFormat)
|
|
|
|
{
|
|
|
|
case PixelFormat::RGBA8888:
|
|
|
|
case PixelFormat::BGRA8888:
|
|
|
|
return byte(4);
|
|
|
|
case PixelFormat::RGB888:
|
|
|
|
return byte(3);
|
|
|
|
case PixelFormat::RGBA4444:
|
|
|
|
return byte(2);
|
|
|
|
case PixelFormat::A8:
|
|
|
|
return byte(1);
|
|
|
|
case PixelFormat::I8:
|
|
|
|
return byte(1);
|
|
|
|
case PixelFormat::RGB565:
|
|
|
|
return byte(2);
|
|
|
|
case PixelFormat::RGB5A1:
|
|
|
|
return byte(2);
|
|
|
|
case PixelFormat::AI88:
|
|
|
|
return byte(2);
|
|
|
|
case PixelFormat::ETC:
|
|
|
|
return bit(4);
|
|
|
|
case PixelFormat::ATC_RGB:
|
|
|
|
return bit(4);
|
|
|
|
case PixelFormat::ATC_EXPLICIT_ALPHA:
|
|
|
|
return byte(1);
|
|
|
|
case PixelFormat::ATC_INTERPOLATED_ALPHA:
|
|
|
|
return byte(1);
|
|
|
|
case PixelFormat::PVRTC2:
|
|
|
|
return bit(2);
|
|
|
|
case PixelFormat::PVRTC2A:
|
|
|
|
return bit(2);
|
|
|
|
case PixelFormat::PVRTC4:
|
|
|
|
return bit(4);
|
|
|
|
case PixelFormat::PVRTC4A:
|
|
|
|
return bit(4);
|
|
|
|
case PixelFormat::S3TC_DXT1:
|
|
|
|
return bit(4);
|
|
|
|
case PixelFormat::S3TC_DXT3:
|
|
|
|
return byte(1);
|
|
|
|
case PixelFormat::S3TC_DXT5:
|
|
|
|
return byte(1);
|
|
|
|
case PixelFormat::MTL_BGR5A1:
|
|
|
|
return byte(2);
|
|
|
|
case PixelFormat::MTL_B5G6R5:
|
|
|
|
return byte(2);
|
|
|
|
case PixelFormat::MTL_ABGR4:
|
|
|
|
return byte(2);
|
2020-02-12 20:24:29 +08:00
|
|
|
case PixelFormat::ASTC4:
|
|
|
|
return bit(8);
|
|
|
|
case PixelFormat::ASTC8:
|
|
|
|
return bit(2);
|
2019-11-23 20:27:39 +08:00
|
|
|
case PixelFormat::D24S8:
|
|
|
|
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
|
|
|
|
//ios use MTLPixelFormatDepth32Float_Stencil8 as DepthStencil combined format, its 64 bits
|
|
|
|
return byte(8);
|
|
|
|
#else
|
|
|
|
//mac and opengl use Depth24_Stnicl8 combined format, its 32 bits
|
|
|
|
return byte(4);
|
|
|
|
#endif
|
|
|
|
default:
|
|
|
|
return byte(0); //"textureFormat pixel size in bytes not defined!";
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
TextureBackend::TextureBackend(const TextureDescriptor& descriptor)
|
|
|
|
: _bitsPerElement(computeBitsPerElement(descriptor.textureFormat))
|
|
|
|
, _width(descriptor.width)
|
|
|
|
, _height(descriptor.height)
|
|
|
|
, _textureType(descriptor.textureType)
|
|
|
|
, _textureFormat(descriptor.textureFormat)
|
|
|
|
, _textureUsage(descriptor.textureUsage)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
TextureBackend::~TextureBackend()
|
|
|
|
{}
|
|
|
|
|
|
|
|
void TextureBackend::updateTextureDescriptor(const cocos2d::backend::TextureDescriptor &descriptor, int /*index*/)
|
|
|
|
{
|
|
|
|
_bitsPerElement = computeBitsPerElement(descriptor.textureFormat);
|
|
|
|
_textureType = descriptor.textureType;
|
|
|
|
_textureFormat = descriptor.textureFormat;
|
|
|
|
_textureUsage = descriptor.textureUsage;
|
|
|
|
_width = descriptor.width;
|
|
|
|
_height = descriptor.height;
|
|
|
|
}
|
|
|
|
|
|
|
|
Texture2DBackend::Texture2DBackend(const TextureDescriptor& descriptor)
|
|
|
|
: TextureBackend(descriptor)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
TextureCubemapBackend::TextureCubemapBackend(const TextureDescriptor &descriptor)
|
|
|
|
: TextureBackend(descriptor)
|
|
|
|
{
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
CC_BACKEND_END
|