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sw_engine: add support for 8bits gradient rectangles

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Rastering for 32bits dst buffer was implemented,
but 8bits dst were not supported.

@Issue: https://github.com/thorvg/thorvg/issues/2765
This commit is contained in:
Mira Grudzinska 2024-09-26 23:33:51 +02:00 • committed by Hermet Park
parent 932f55070d
commit edf1cfe927
1 changed files with 28 additions and 7 deletions
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35
src/renderer/sw_engine/tvgSwRaster.cpp
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@ -1352,13 +1352,23 @@ static bool _rasterBlendingGradientRect(SwSurface* surface, const SwBBox& region
template<typename fillMethod>
static bool _rasterTranslucentGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{
auto buffer = surface->buf32 + (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);
for (uint32_t y = 0; y < h; ++y) {
fillMethod()(fill, buffer, region.min.y + y, region.min.x, w, opBlendPreNormal, 255);
buffer += surface->stride;
//32 bits
if (surface->channelSize == sizeof(uint32_t)) {
auto buffer = surface->buf32 + (region.min.y * surface->stride) + region.min.x;
for (uint32_t y = 0; y < h; ++y) {
fillMethod()(fill, buffer, region.min.y + y, region.min.x, w, opBlendPreNormal, 255);
buffer += surface->stride;
}
//8 bits
} else if (surface->channelSize == sizeof(uint8_t)) {
auto buffer = surface->buf8 + (region.min.y * surface->stride) + region.min.x;
for (uint32_t y = 0; y < h; ++y) {
fillMethod()(fill, buffer, region.min.y + y, region.min.x, w, _opMaskAdd, 255);
buffer += surface->stride;
}
}
return true;
}
@ -1367,12 +1377,23 @@ static bool _rasterTranslucentGradientRect(SwSurface* surface, const SwBBox& reg
template<typename fillMethod>
static bool _rasterSolidGradientRect(SwSurface* surface, const SwBBox& region, const SwFill* fill)
{
auto buffer = surface->buf32 + (region.min.y * surface->stride) + region.min.x;
auto w = static_cast<uint32_t>(region.max.x - region.min.x);
auto h = static_cast<uint32_t>(region.max.y - region.min.y);
for (uint32_t y = 0; y < h; ++y) {
fillMethod()(fill, buffer + y * surface->stride, region.min.y + y, region.min.x, w, opBlendSrcOver, 255);
//32 bits
if (surface->channelSize == sizeof(uint32_t)) {
auto buffer = surface->buf32 + (region.min.y * surface->stride) + region.min.x;
for (uint32_t y = 0; y < h; ++y) {
fillMethod()(fill, buffer, region.min.y + y, region.min.x, w, opBlendSrcOver, 255);
buffer += surface->stride;
}
//8 bits
} else if (surface->channelSize == sizeof(uint8_t)) {
auto buffer = surface->buf8 + (region.min.y * surface->stride) + region.min.x;
for (uint32_t y = 0; y < h; ++y) {
fillMethod()(fill, buffer, region.min.y + y, region.min.x, w, _opMaskNone, 255);
buffer += surface->stride;
}
}
return true;
}