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93 lines
3.3 KiB
93 lines
3.3 KiB
/****************************************************************************
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Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
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http://www.cocos.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "core/utils/ImageUtils.h"
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#include "base/Log.h"
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#include "renderer/gfx-base/GFXDef-common.h"
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namespace {
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uint8_t *convertRGB2RGBA(uint32_t length, uint8_t *src) {
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auto *dst = reinterpret_cast<uint8_t *>(malloc(length));
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for (uint32_t i = 0; i < length; i += 4) {
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dst[i] = *src++;
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dst[i + 1] = *src++;
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dst[i + 2] = *src++;
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dst[i + 3] = 255;
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}
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return dst;
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}
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uint8_t *convertIA2RGBA(uint32_t length, uint8_t *src) {
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auto *dst = reinterpret_cast<uint8_t *>(malloc(length));
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for (uint32_t i = 0; i < length; i += 4) {
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dst[i] = *src;
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dst[i + 1] = *src;
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dst[i + 2] = *src++;
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dst[i + 3] = *src++;
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}
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return dst;
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}
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uint8_t *convertI2RGBA(uint32_t length, uint8_t *src) {
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auto *dst = reinterpret_cast<uint8_t *>(malloc(length));
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for (uint32_t i = 0; i < length; i += 4) {
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dst[i] = *src;
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dst[i + 1] = *src;
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dst[i + 2] = *src++;
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dst[i + 3] = 255;
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}
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return dst;
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}
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} // namespace
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namespace cc {
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void ImageUtils::convert2RGBA(Image *image) {
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if (!image->_isCompressed && image->_renderFormat != gfx::Format::RGBA8) {
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image->_dataLen = image->_width * image->_height * 4;
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uint8_t *dst = nullptr;
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uint32_t length = static_cast<uint32_t>(image->_dataLen);
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uint8_t *src = image->_data;
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switch (image->_renderFormat) {
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case gfx::Format::A8:
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case gfx::Format::LA8:
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dst = convertIA2RGBA(length, src);
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break;
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case gfx::Format::L8:
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case gfx::Format::R8:
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case gfx::Format::R8I:
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dst = convertI2RGBA(length, src);
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break;
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case gfx::Format::RGB8:
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dst = convertRGB2RGBA(length, src);
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break;
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default:
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CC_LOG_INFO("cannot convert to RGBA: unknown image format");
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break;
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}
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if (dst != image->_data) free(image->_data);
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image->_data = dst;
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image->_renderFormat = gfx::Format::RGBA8;
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}
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}
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} // namespace cc
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