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/*
* Copyright (c) 2021 - 2022 Samsung Electronics Co., Ltd. All rights reserved.
* 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.
*/
static void inline cRasterRGBA32(uint32_t *dst, uint32_t val, uint32_t offset, int32_t len)
{
dst += offset;
while (len--) *dst++ = val;
}
static bool inline cRasterTranslucentRle(SwSurface* surface, const SwRleData* rle, uint32_t color)
{
auto span = rle->spans;
uint32_t src;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
if (span->coverage < 255) src = ALPHA_BLEND(color, span->coverage);
else src = color;
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
*dst = src + ALPHA_BLEND(*dst, _ialpha(src));
}
}
return true;
}
static bool inline cRasterTranslucentRect(SwSurface* surface, const SwBBox& region, uint32_t color)
{
auto buffer = surface->buffer + (region.min.y * surface->stride) + region.min.x;
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
auto ialpha = _ialpha(color);
for (uint32_t y = 0; y < h; ++y) {
auto dst = &buffer[y * surface->stride];
for (uint32_t x = 0; x < w; ++x, ++dst) {
*dst = color + ALPHA_BLEND(*dst, ialpha);
}
}
return true;
}
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