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sw_engine: support the grayscale scaled-image drawing

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Hermet Park 2024-07-02 18:12:12 +09:00
parent 98e613e3f0
commit 3390ff21fc
1 changed files with 34 additions and 14 deletions
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36
src/renderer/sw_engine/tvgSwRaster.cpp
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@ -1087,6 +1087,7 @@ static bool _rasterDirectScaledMaskedImage(SwSurface* surface, const SwImage* im
static bool _rasterScaledMaskedImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint8_t opacity)
{
TVGERR("SW_ENGINE", "Not supported ScaledMaskedImage!");
#if 0 //Enable it when GRAYSCALE image is supported
TVGLOG("SW_ENGINE", "Scaled Masked(%d) Image [Region: %lu %lu %lu %lu]", (int)surface->compositor->method, region.min.x, region.min.y, region.max.x - region.min.x, region.max.y - region.min.y);
@ -1100,6 +1101,11 @@ static bool _rasterScaledMaskedImage(SwSurface* surface, const SwImage* image, c
static bool _rasterScaledMattedImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint8_t opacity)
{
if (surface->channelSize == sizeof(uint8_t)) {
TVGERR("SW_ENGINE", "Not supported grayscale scaled matted image!");
return false;
}
auto dbuffer = surface->buf32 + (region.min.y * surface->stride + region.min.x);
auto csize = surface->compositor->image.channelSize;
auto cbuffer = surface->compositor->image.buf8 + (region.min.y * surface->compositor->image.stride + region.min.x) * csize;
@ -1130,6 +1136,11 @@ static bool _rasterScaledMattedImage(SwSurface* surface, const SwImage* image, c
static bool _rasterScaledBlendingImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint8_t opacity)
{
if (surface->channelSize == sizeof(uint8_t)) {
TVGERR("SW_ENGINE", "Not supported grayscale scaled blending image!");
return false;
}
auto dbuffer = surface->buf32 + (region.min.y * surface->stride + region.min.x);
auto scaleMethod = image->scale < DOWN_SCALE_TOLERANCE ? _interpDownScaler : _interpUpScaler;
auto sampleSize = _sampleSize(image->scale);
@ -1152,14 +1163,16 @@ static bool _rasterScaledBlendingImage(SwSurface* surface, const SwImage* image,
static bool _rasterScaledImage(SwSurface* surface, const SwImage* image, const Matrix* itransform, const SwBBox& region, uint8_t opacity)
{
auto dbuffer = surface->buf32 + (region.min.y * surface->stride + region.min.x);
auto scaleMethod = image->scale < DOWN_SCALE_TOLERANCE ? _interpDownScaler : _interpUpScaler;
auto sampleSize = _sampleSize(image->scale);
int32_t miny = 0, maxy = 0;
for (auto y = region.min.y; y < region.max.y; ++y, dbuffer += surface->stride) {
//32bits channels
if (surface->channelSize == sizeof(uint32_t)) {
auto buffer = surface->buf32 + (region.min.y * surface->stride + region.min.x);
for (auto y = region.min.y; y < region.max.y; ++y, buffer += surface->stride) {
SCALED_IMAGE_RANGE_Y(y)
auto dst = dbuffer;
auto dst = buffer;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
SCALED_IMAGE_RANGE_X
auto src = scaleMethod(image->buf32, image->stride, image->w, image->h, sx, sy, miny, maxy, sampleSize);
@ -1167,17 +1180,24 @@ static bool _rasterScaledImage(SwSurface* surface, const SwImage* image, const M
*dst = src + ALPHA_BLEND(*dst, IA(src));
}
}
} else if (surface->channelSize == sizeof(uint8_t)) {
auto buffer = surface->buf8 + (region.min.y * surface->stride + region.min.x);
for (auto y = region.min.y; y < region.max.y; ++y, buffer += surface->stride) {
SCALED_IMAGE_RANGE_Y(y)
auto dst = buffer;
for (auto x = region.min.x; x < region.max.x; ++x, ++dst) {
SCALED_IMAGE_RANGE_X
auto src = scaleMethod(image->buf32, image->stride, image->w, image->h, sx, sy, miny, maxy, sampleSize);
*dst = MULTIPLY(A(src), opacity);
}
}
}
return true;
}
static bool _scaledImage(SwSurface* surface, const SwImage* image, const Matrix* transform, const SwBBox& region, uint8_t opacity)
{
if (surface->channelSize == sizeof(uint8_t)) {
TVGERR("SW_ENGINE", "Not supported grayscale Textmap polygon mesh!");
return false;
}
Matrix itransform;
if (transform) {