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renderer/canvas: tweak the viewport behavior.

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reset the viewport context when target buffer is reset.
This commit is contained in:
Hermet Park 2024-05-20 13:54:57 +09:00
parent 5c48127012
commit a93c348207
5 changed files with 5 additions and 5 deletions
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2
inc/thorvg.h
View file

@ -668,7 +668,7 @@ public:
*
* @warning It's not allowed to change the viewport during Canvas::push() - Canvas::sync() or Canvas::update() - Canvas::sync().
*
* @note The specified viewport region will be intersected with the target region.
* @note When resetting the target, the viewport will also be reset to the target size.
* @note Experimental API
*/
virtual Result viewport(int32_t x, int32_t y, int32_t w, int32_t h) noexcept;

2
src/bindings/capi/thorvg_capi.h
View file

@ -761,7 +761,7 @@ TVG_API Tvg_Result tvg_canvas_sync(Tvg_Canvas* canvas);
*
* \warning It's not allowed to change the viewport during tvg_canvas_update() - tvg_canvas_sync() or tvg_canvas_push() - tvg_canvas_sync().
*
* \note The specified viewport region will be intersected with the target region.
* \note When resetting the target, the viewport will also be reset to the target size.
* \note Experimental API
* \see tvg_swcanvas_set_target()
*/

2
src/renderer/tvgGlCanvas.cpp
View file

@ -68,7 +68,7 @@ Result GlCanvas::target(int32_t id, uint32_t w, uint32_t h) noexcept
if (!renderer) return Result::MemoryCorruption;
if (!renderer->target(id, w, h)) return Result::Unknown;
Canvas::pImpl->vport.intersect({0, 0, (int32_t)w, (int32_t)h});
Canvas::pImpl->vport = {0, 0, (int32_t)w, (int32_t)h};
renderer->viewport(Canvas::pImpl->vport);
//Paints must be updated again with this new target.

2
src/renderer/tvgSwCanvas.cpp
View file

@ -87,7 +87,7 @@ Result SwCanvas::target(uint32_t* buffer, uint32_t stride, uint32_t w, uint32_t
if (!renderer) return Result::MemoryCorruption;
if (!renderer->target(buffer, stride, w, h, static_cast<ColorSpace>(cs))) return Result::InvalidArguments;
Canvas::pImpl->vport.intersect({0, 0, (int32_t)w, (int32_t)h});
Canvas::pImpl->vport = {0, 0, (int32_t)w, (int32_t)h};
renderer->viewport(Canvas::pImpl->vport);
//Paints must be updated again with this new target.

2
src/renderer/tvgWgCanvas.cpp
View file

@ -63,7 +63,7 @@ Result WgCanvas::target(void* window, uint32_t w, uint32_t h) noexcept
if (!renderer) return Result::MemoryCorruption;
if (!renderer->target(window, w, h)) return Result::Unknown;
Canvas::pImpl->vport.intersect({0, 0, (int32_t)w, (int32_t)h});
Canvas::pImpl->vport = {0, 0, (int32_t)w, (int32_t)h};
renderer->viewport(Canvas::pImpl->vport);
//Paints must be updated again with this new target.