Function imageDecodeToRgba8

3rdparty/bimg/src/image.cpp:4967–5086

	}

	void imageDecodeToRgba8(bx::AllocatorI* _allocator, void* _dst, const void* _src, uint32_t _width, uint32_t _height, uint32_t _dstPitch, TextureFormat::Enum _srcFormat)
	{
		switch (_srcFormat)
		{
		case TextureFormat::RGBA8:
			{
				const uint32_t srcPitch = _width * 4;
				const uint32_t size = bx::uint32_min(srcPitch, _dstPitch);
				bx::memCopy(_dst, _dstPitch, _src, srcPitch, size, _height);
			}
			break;

		case TextureFormat::BGRA8:
			{
				const uint32_t srcPitch = _width * 4;
				imageSwizzleBgra8(_dst, _dstPitch, _width, _height, _src, srcPitch);
			}
			break;

		case TextureFormat::ASTC4x4:
		case TextureFormat::ASTC5x4:
		case TextureFormat::ASTC5x5:
		case TextureFormat::ASTC6x5:
		case TextureFormat::ASTC6x6:
		case TextureFormat::ASTC8x5:
		case TextureFormat::ASTC8x6:
		case TextureFormat::ASTC8x8:
		case TextureFormat::ASTC10x5:
		case TextureFormat::ASTC10x6:
		case TextureFormat::ASTC10x8:
		case TextureFormat::ASTC10x10:
		case TextureFormat::ASTC12x10:
		case TextureFormat::ASTC12x12:
			if (BX_ENABLED(BIMG_DECODE_ASTC) )
			{
					const bimg::ImageBlockInfo& astcBlockInfo = bimg::getBlockInfo(_srcFormat);

					astcenc_config config{};

					astcenc_error status = astcenc_config_init(
						  ASTCENC_PRF_LDR
						, astcBlockInfo.blockWidth
						, astcBlockInfo.blockHeight
						, 1
						, ASTCENC_PRE_MEDIUM
						, ASTCENC_FLG_DECOMPRESS_ONLY
						, &config
						);

					if (status != ASTCENC_SUCCESS)
					{
						BX_TRACE("astc error in config init %s", astcenc_get_error_string(status));
						imageCheckerboard(_dst, _width, _height, 16, UINT32_C(0xff000000), UINT32_C(0xffffff00) );
						break;
					}

					astcenc_context* context;
					status = astcenc_context_alloc(&config, 1, &context);