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sw_engine: fixing the composition for canvas width != canvas stride

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When canvas width was smaller than its stride and a composition is used,
the plots were drawn incorrectly. This is fixed by setting the image width
(image from a compositor) to be equal to the surface stride, instead of its width.
The image data are now allocated accordingly the fixed image width.
This commit is contained in:
Mira Grudzinska 2021-06-07 15:48:52 +02:00 • committed by Hermet Park
parent f0598a7481
commit 419751c736
1 changed files with 3 additions and 3 deletions
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6
src/lib/sw_engine/tvgSwRenderer.cpp
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@ -455,7 +455,7 @@ Compositor* SwRenderer::target(const RenderRegion& region)
if (!cmp->compositor) goto err; if (!cmp->compositor) goto err;
//SwImage, Optimize Me: Surface size from MainSurface(WxH) to Parameter W x H //SwImage, Optimize Me: Surface size from MainSurface(WxH) to Parameter W x H
cmp->compositor->image.data = (uint32_t*) malloc(sizeof(uint32_t) * surface->w * surface->h); cmp->compositor->image.data = (uint32_t*) malloc(sizeof(uint32_t) * surface->stride * surface->h);
if (!cmp->compositor->image.data) goto err; if (!cmp->compositor->image.data) goto err;
compositors.push(cmp); compositors.push(cmp);
} }
@ -475,7 +475,7 @@ Compositor* SwRenderer::target(const RenderRegion& region)
cmp->compositor->bbox.min.y = y; cmp->compositor->bbox.min.y = y;
cmp->compositor->bbox.max.x = x + w; cmp->compositor->bbox.max.x = x + w;
cmp->compositor->bbox.max.y = y + h; cmp->compositor->bbox.max.y = y + h;
cmp->compositor->image.w = surface->w; cmp->compositor->image.w = surface->stride;
cmp->compositor->image.h = surface->h; cmp->compositor->image.h = surface->h;
//We know partial clear region //We know partial clear region
@ -648,4 +648,4 @@ SwRenderer* SwRenderer::gen()
{ {
++rendererCnt; ++rendererCnt;
return new SwRenderer(); return new SwRenderer();
} }