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sw_engine image: code refactoring

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This commit is contained in:
Hermet Park 2021-11-19 13:22:32 +09:00
parent 93da844d94
commit e195ac8b30
3 changed files with 31 additions and 37 deletions
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6
src/lib/sw_engine/tvgSwCommon.h
View file

@ -224,11 +224,11 @@ struct SwImage
SwRleData* rle = nullptr;
uint32_t* data = nullptr;
uint32_t w, h, stride;
int32_t x = 0; //shift x
int32_t y = 0; //shift y
int32_t ox = 0; //offset x
int32_t oy = 0; //offset y
float scale;
bool transformed = false;
bool direct = false; //draw image directly (with offset)
};
struct SwBlender

34
src/lib/sw_engine/tvgSwImage.cpp
View file

@ -26,6 +26,13 @@
/* Internal Class Implementation */
/************************************************************************/
static inline bool _onlyShifted(const Matrix* m)
{
if (mathEqual(m->e11, 1.0f) && mathEqual(m->e22, 1.0f) && mathZero(m->e12) && mathZero(m->e21)) return true;
return false;
}
static bool _genOutline(SwImage* image, const Matrix* transform, SwMpool* mpool, unsigned tid)
{
image->outline = mpoolReqOutline(mpool, tid);
@ -67,40 +74,27 @@ static bool _genOutline(SwImage* image, const Matrix* transform, SwMpool* mpool,
}
static inline bool _onlyShifted(const Matrix* m)
{
if (mathEqual(m->e11, 1.0f) && mathEqual(m->e22, 1.0f) && mathZero(m->e12) && mathZero(m->e21)) return true;
return false;
}
/************************************************************************/
/* External Class Implementation */
/************************************************************************/
bool imagePrepare(SwImage* image, const Matrix* transform, const SwBBox& clipRegion, SwBBox& renderRegion, SwMpool* mpool, unsigned tid)
{
image->transformed = !_onlyShifted(transform);
bool fastTrack;
image->direct = _onlyShifted(transform);
//Fast track: Non-transformed image but just shifted.
if (image->direct) {
image->ox = -static_cast<uint32_t>(round(transform->e13));
image->oy = -static_cast<uint32_t>(round(transform->e23));
//Figure out the scale factor by transform matrix
if (image->transformed) {
} else {
auto scaleX = sqrtf((transform->e11 * transform->e11) + (transform->e21 * transform->e21));
auto scaleY = sqrtf((transform->e22 * transform->e22) + (transform->e12 * transform->e12));
//TODO:If the x and y axis scale is different, a separate interpolation algorithm for each axis should be applied.
image->scale = (fabsf(scaleX - scaleY) > 0.01f) ? 1.0f : scaleX;
fastTrack = false;
//Fast track: Non-transformed image but just shifted.
} else {
image->scale = 1.0f;
image->x = -static_cast<uint32_t>(round(transform->e13));
image->y = -static_cast<uint32_t>(round(transform->e23));
fastTrack = true;
}
if (!_genOutline(image, transform, mpool, tid)) return false;
return mathUpdateOutlineBBox(image->outline, clipRegion, renderRegion, fastTrack);
return mathUpdateOutlineBBox(image->outline, clipRegion, renderRegion, image->direct);
}

28
src/lib/sw_engine/tvgSwRaster.cpp
View file

@ -597,7 +597,7 @@ static bool _rasterDirectMaskedRleImage(SwSurface* surface, const SwImage* image
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto img = image->data + (span->y + image->y) * image->stride + (span->x + image->x);
auto img = image->data + (span->y + image->oy) * image->stride + (span->x + image->ox);
auto alpha = _multiplyAlpha(span->coverage, opacity);
if (alpha == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++cmp, ++img) {
@ -621,7 +621,7 @@ static bool __rasterDirectTranslucentRleImage(SwSurface* surface, const SwImage*
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto img = image->data + (span->y + image->y) * image->stride + (span->x + image->x);
auto img = image->data + (span->y + image->oy) * image->stride + (span->x + image->ox);
auto alpha = _multiplyAlpha(span->coverage, opacity);
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++img) {
auto src = ALPHA_BLEND(*img, alpha);
@ -651,7 +651,7 @@ static bool _rasterDirectSolidRleImage(SwSurface* surface, const SwImage* image)
for (uint32_t i = 0; i < image->rle->size; ++i, ++span) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto img = image->data + (span->y + image->y) * image->stride + (span->x + image->x);
auto img = image->data + (span->y + image->oy) * image->stride + (span->x + image->ox);
if (span->coverage == 255) {
for (uint32_t x = 0; x < span->len; ++x, ++dst, ++img) {
*dst = *img;
@ -978,7 +978,7 @@ static bool _rasterDirectMaskedImage(SwSurface* surface, const SwImage* image, u
TVGLOG("SW_ENGINE", "Direct Masked Image");
auto sbuffer = image->data + (region.min.y + image->y) * image->stride + (region.min.x + image->x);
auto sbuffer = image->data + (region.min.y + image->oy) * image->stride + (region.min.x + image->ox);
auto cbuffer = surface->compositor->image.data + (region.min.y * surface->stride) + region.min.x; //compositor buffer
for (uint32_t y = 0; y < h2; ++y) {
@ -1000,7 +1000,7 @@ static bool _rasterDirectMaskedImage(SwSurface* surface, const SwImage* image, u
static bool __rasterDirectTranslucentImage(SwSurface* surface, const SwImage* image, uint32_t opacity, const SwBBox& region)
{
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
auto sbuffer = image->data + (region.min.y + image->y) * image->stride + (region.min.x + image->x);
auto sbuffer = image->data + (region.min.y + image->oy) * image->stride + (region.min.x + image->ox);
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
@ -1032,7 +1032,7 @@ static bool _rasterDirectTranslucentImage(SwSurface* surface, const SwImage* ima
static bool _rasterDirectSolidImage(SwSurface* surface, const SwImage* image, const SwBBox& region)
{
auto dbuffer = &surface->buffer[region.min.y * surface->stride + region.min.x];
auto sbuffer = image->data + (region.min.y + image->y) * image->stride + (region.min.x + image->x);
auto sbuffer = image->data + (region.min.y + image->oy) * image->stride + (region.min.x + image->ox);
for (auto y = region.min.y; y < region.max.y; ++y) {
auto dst = dbuffer;
@ -1592,21 +1592,21 @@ bool rasterImage(SwSurface* surface, SwImage* image, const Matrix* transform, co
//Clipped Image
if (image->rle) {
if (image->transformed) {
if (translucent) return _rasterTransformedTranslucentRleImage(surface, image, opacity, &itransform, halfScale);
else return _rasterTransformedSolidRleImage(surface, image, &itransform, halfScale);
} else {
if (image->direct) {
if (translucent) return _rasterDirectTranslucentRleImage(surface, image, opacity);
else return _rasterDirectSolidRleImage(surface, image);
} else {
if (translucent) return _rasterTransformedTranslucentRleImage(surface, image, opacity, &itransform, halfScale);
else return _rasterTransformedSolidRleImage(surface, image, &itransform, halfScale);
}
//Whole Image
} else {
if (image->transformed) {
if (translucent) return _rasterTransformedTranslucentImage(surface, image, opacity, bbox, &itransform, halfScale);
else return _rasterTransformedSolidImage(surface, image, bbox, &itransform, halfScale);
} else {
if (image->direct) {
if (translucent) return _rasterDirectTranslucentImage(surface, image, opacity, bbox);
else return _rasterDirectSolidImage(surface, image, bbox);
} else {
if (translucent) return _rasterTransformedTranslucentImage(surface, image, opacity, bbox, &itransform, halfScale);
else return _rasterTransformedSolidImage(surface, image, bbox, &itransform, halfScale);
}
}
}