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/*
* Copyright (c) 2021 - 2023 the ThorVG project. 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.
*/
template<typename PIXEL_T>
static void inline cRasterPixels(PIXEL_T* dst, PIXEL_T val, uint32_t offset, int32_t len)
{
dst += offset;
//fix the misaligned memory
auto alignOffset = (long long) dst % 8;
if (alignOffset > 0) {
if (sizeof(PIXEL_T) == 4) alignOffset /= 4;
else if (sizeof(PIXEL_T) == 1) alignOffset = 8 - alignOffset;
while (alignOffset > 0 && len > 0) {
*dst++ = val;
--len;
--alignOffset;
}
}
//64bits faster clear
if ((sizeof(PIXEL_T) == 4)) {
auto val64 = (uint64_t(val) << 32) | uint64_t(val);
while (len > 1) {
*reinterpret_cast<uint64_t*>(dst) = val64;
len -= 2;
dst += 2;
}
} else if (sizeof(PIXEL_T) == 1) {
auto val32 = (uint32_t(val) << 24) | (uint32_t(val) << 16) | (uint32_t(val) << 8) | uint32_t(val);
auto val64 = (uint64_t(val32) << 32) | val32;
while (len > 7) {
*reinterpret_cast<uint64_t*>(dst) = val64;
len -= 8;
dst += 8;
}
}
//leftovers
while (len--) *dst++ = val;
}
static bool inline cRasterTranslucentRle(SwSurface* surface, const SwRleData* rle, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
auto span = rle->spans;
//32bit channels
if (surface->channelSize == sizeof(uint32_t)) {
auto color = surface->join(r, g, b, a);
uint32_t src;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buf32[span->y * surface->stride + span->x];
if (span->coverage < 255) src = ALPHA_BLEND(color, span->coverage);
else src = color;
auto ialpha = IA(src);
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
*dst = src + ALPHA_BLEND(*dst, ialpha);
}
}
//8bit grayscale
} else if (surface->channelSize == sizeof(uint8_t)) {
uint8_t src;
for (uint32_t i = 0; i < rle->size; ++i, ++span) {
auto dst = &surface->buf8[span->y * surface->stride + span->x];
if (span->coverage < 255) src = MULTIPLY(span->coverage, a);
else src = a;
auto ialpha = ~a;
for (uint32_t x = 0; x < span->len; ++x, ++dst) {
*dst = src + MULTIPLY(*dst, ialpha);
}
}
}
return true;
}
static bool inline cRasterTranslucentRect(SwSurface* surface, const SwBBox& region, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
//32bits channels
if (surface->channelSize == sizeof(uint32_t)) {
auto color = surface->join(r, g, b, 255);
auto buffer = surface->buf32 + (region.min.y * surface->stride) + region.min.x;
auto ialpha = 255 - a;
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);
}
}
//8bit grayscale
} else if (surface->channelSize == sizeof(uint8_t)) {
auto buffer = surface->buf8 + (region.min.y * surface->stride) + region.min.x;
auto ialpha = ~a;
for (uint32_t y = 0; y < h; ++y) {
auto dst = &buffer[y * surface->stride];
for (uint32_t x = 0; x < w; ++x, ++dst) {
*dst = a + MULTIPLY(*dst, ialpha);
}
}
}
return true;
}
static bool inline cRasterABGRtoARGB(Surface* surface)
{
TVGLOG("SW_ENGINE", "Convert ColorSpace ABGR - ARGB [Size: %d x %d]", surface->w, surface->h);
//64bits faster converting
if (surface->w % 2 == 0) {
auto buffer = reinterpret_cast<uint64_t*>(surface->buf32);
for (uint32_t y = 0; y < surface->h; ++y, buffer += surface->stride / 2) {
auto dst = buffer;
for (uint32_t x = 0; x < surface->w / 2; ++x, ++dst) {
auto c = *dst;
//flip Blue, Red channels
*dst = (c & 0xff000000ff000000) + ((c & 0x00ff000000ff0000) >> 16) + (c & 0x0000ff000000ff00) + ((c & 0x000000ff000000ff) << 16);
}
}
//default converting
} else {
auto buffer = surface->buf32;
for (uint32_t y = 0; y < surface->h; ++y, buffer += surface->stride) {
auto dst = buffer;
for (uint32_t x = 0; x < surface->w; ++x, ++dst) {
auto c = *dst;
//flip Blue, Red channels
*dst = (c & 0xff000000) + ((c & 0x00ff0000) >> 16) + (c & 0x0000ff00) + ((c & 0x000000ff) << 16);
}
}
}
return true;
}
static bool inline cRasterARGBtoABGR(Surface* surface)
{
//exactly same with ABGRtoARGB
return cRasterABGRtoARGB(surface);
}
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