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Author	SHA1	Message	Date
Hermet Park	498f35e01a	sw_engine: add support for partial rendering ... This implements RenderDirtyRegion. issue: https://github.com/thorvg/thorvg/issues/1747	2025-06-13 18:15:11 +09:00
Hermet Park	6ce477854d	renderer: add partial rendering support ... Partial Rendering refers to a rendering technique where only a portion of the scene or screen is updated, rather than redrawing the entire output. It is commonly used as a performance optimization strategy, focusing on redrawing only the regions that have changed, often called dirty regions. This introduces RenderDirtyRegion, which assists in collecting a compact dirty region from render tasks. Each backend can utilize this class to support efficient partial rendering. This is implemented using a Line Sweep and Subdivision Merging O(NlogN). The basic per-frame workflow is as follows: 1. RenderDirtyRegion::prepare() //Call this in Renderer::preRender(). 2. RenderDirtyRegion::add() //Add all dirty paints for the frame before rendering. 3. RenderDirtyRegion::commit() //Generate the partial rendering region list before rendering. 4. RenderDirtyRegion::get() //Retrieve the current dirty region list and use it when drawing paints. 5. RenderDirtyRegion::clear() //Reset the state. issue: https://github.com/thorvg/thorvg/issues/1747	2025-06-13 18:15:06 +09:00
Hermet Park	b22ceaae7c	sw_engine: enable render region clipping during rendering ... Implemented support for clipping shapes and images using a render region bounding box at render time. This allows partial drawing of content, laying the groundwork for upcoming partial rendering functionality. for fast access of the drawing region from the linear rle data, we introduced the binary search for begin/end of rle instead of additional y index buffer. There is a reason for not using a y-index buffer: the shapes in the RLE are not single, continuous shapes but multiple shapes scattered across the space. which means that we need a double-associated data structure per shapes for y indexing, and this data preparation wouldn't be cheaper enough than realtime binary search especially animated data. This also helps for current clipping performance by utilizing the introduced fast-clipping region access. issue: https://github.com/thorvg/thorvg/issues/1747	2025-06-13 15:43:43 +09:00
Hermet Park	830db9ecb7	sw_engine: code refactoring ... - removed a redundant code, sync() will take over. - deferred the sync as possible as later	2025-06-13 15:43:06 +09:00
Sergii Liebodkin	ed93570756	wg_engine: remove unnecessary mesh pools ... remove unnecessary mesh pools	2025-06-13 11:37:34 +09:00
Mira Grudzinska	27e78095ff	lottie: fix offset with miter join ... One point was skipped during the creation of the offset corner. The error was not visible because the point lies on the line, but it will become apparent if further modifiers are applied to the object (not supported now).	2025-06-13 11:36:22 +09:00
Hermet Park	60f0f4cbe4	Revert "sw_engine: replaced texture mapping AA with 4x sampling interp" ... This reverts commit 174fae9089. Will revisit this since the quality is too poor...	2025-06-12 23:40:18 +09:00
Hermet Park	d5a5e3215c	renderer: hotfix ... added exceptional handling	2025-06-12 23:04:16 +09:00
Sergii Liebodkin	92e3c243ec	wg_engine: uniform stage buffers implementation ... Introduced stage buffer for uniforms to reduce number of memory shafles from cpu to gpu memory https://github.com/thorvg/thorvg/issues/3505	2025-06-12 21:57:24 +09:00
Mira Grudzinska	4c3c5d9d06	lottie: readability++ ... Introduce the _colinear function - checks if a Bezier curve is degenerated to a line.	2025-06-12 18:48:07 +09:00
Hermet Park	8f10f45756	renderer: caching the viewport update ... reuse cached scene viewport data if scene had no update before, just a minor optimization	2025-06-12 18:44:07 +09:00
Hermet Park	3eaf110e0a	sw_engine: revised the texture clipping ... previous logic doesn't work if the clipping shape has any inner corners. replace the logic with a intermediate composition approach for stability. - performance can be drop at texture clipping by ~11% - size is reduced by -0.5kb issue: https://github.com/thorvg/thorvg/issues/3520	2025-06-11 22:35:54 +09:00
Hermet Park	174fae9089	sw_engine: replaced texture mapping AA with 4x sampling interp ... The old approach often produced incorrect results, especially when the fixed pixel had a noticeably different color from the texture due to the AA target blending position was fixed. Although the previous method worked well as an analytical AA solution with good speed and fair quality, it couldn't overcome the above limitation. The new approach still applies AA only to polygon edges for efficiency. While the quality may be slightly reduced, it offers greater stability. - binary size: -1.1kb - performance diff: ignoreable issue: https://github.com/thorvg/thorvg/issues/1729	2025-06-11 10:09:39 +09:00
Hermet Park	596f7f767f	renderer: chores++	2025-06-11 01:49:36 +09:00
Hermet Park	2e5af58592	sw_engine: texture mapping performance optimization ... - Replaced `modff()` with a custom method, boosting texture mapping performance by ~15%. - Unified opacity/non-opacity logic for improved binary size efficiency(-0.5kb). - Implemented minor changes for better cache effectiveness.	2025-06-10 19:38:20 +09:00
Hermet Park	bfef89858f	renderer: increased the reference count capacity ... 255 is enough size in general but a bit limited.	2025-06-10 14:51:19 +09:00
Hermet Park	b3d73e1568	lottie: do not try matting if the layer has no contents	2025-06-09 22:33:25 +09:00
Hermet Park	a2665cbab7	lottie: fixed a repeater opacity logic ... preserve the target opacity by multiplying, do not overwrite it.	2025-06-09 18:52:05 +09:00
Hermet Park	6c1b388d77	docs: updated contributors	2025-06-09 17:04:11 +09:00
Sungun No	676a465c55	gl_engine: fix always-true clear flag ... The clear flag specified in Canvas::draw is ignored when set to false, since GlRenderer::mClearBuffer is never explicitly reset to false. This commit ensures that mClearBuffer is reset to its default (false) after being used, so that the clear operation behaves correctly per frame. - Issue: #1779	2025-06-09 17:02:56 +09:00
Hermet Park	8eb046c318	sw_engine: skip AA if texture are orthogonally rotated. ... there is no necessary applying AA for 0/90/180/270 degree rotation issue: https://github.com/thorvg/thorvg/issues/3452	2025-06-09 16:07:45 +09:00
Hermet Park	ae97f5f20f	docs: corrected wrong info	2025-06-09 10:54:53 +09:00
Jinny You	dfc7d268a1	infra(ios): Set cpu family to aarch64 for meson compatibility ... Use meson's official cpu_family name 'aarch64' instead of 'arm64' for ios build.	2025-06-08 11:54:11 +09:00
Hermet Park	eb76769dcf	jpg: removed setjmp usage which is not portable with rust	2025-06-08 11:54:08 +09:00
Hermet Park	0fa5d41c8d	doc: replaced svg sample shot ... issue: https://github.com/thorvg/thorvg/issues/3499	2025-06-03 11:32:07 +09:00
Hermet Park	92070fe0de	examples: replaced the Lenna with free images ... https://www.pexels.com/photo/lovebirds-cuddling-on-a-wooden-branch-30518529/ https://www.pexels.com/@hardeep/ issue: https://github.com/thorvg/thorvg/issues/3499	2025-06-03 11:26:00 +09:00
Hermet Park	6fd7b87754	sw_engine: clean code++	2025-06-03 00:58:29 +09:00
Hermet Park	eeebfbb654	sw_engine: hotfix++ ... resolved a memory violation introduced by: e2909dd6a4	2025-06-02 22:40:43 +09:00
Hermet Park	dc59440744	Update CODEOWNERS ... Removed inactive maintaining parts.	2025-05-31 01:24:36 +09:00
Sergii Liebodkin	24509b0e41	wg_engine: geometry stage buffers implementation ... Implemented task-based rendering and geometry stage buffers: 1. Get information about current frame objects 2. Accumulate geometry data into a stage buffer during frame rendering 3. Flush it to the GPU in single call 4. Run rendering process in post render stage https://github.com/thorvg/thorvg/issues/3489 https://github.com/thorvg/thorvg/issues/3455	2025-05-30 02:21:31 +09:00
Hermet Park	1f53f2d72f	capi: code refactoring ... begin with a positive path for optimal instruction flow at the machine code level.	2025-05-29 15:30:59 +09:00
Hermet Park	2eb2b83bb0	api: revise the clip() apis. ... - Paint explicity allows a shape as a clipper - Added clipper getter apis API Updates + Shape* Paint::clip() * Result Paint::clip(Paint* clipper) -> Result Paint::clip(Shape* clipper) CAPI Updates + Tvg_Paint* tvg_paint_get_clip(const Tvg_Paint* paint) * Tvg_Result tvg_paint_clip(Tvg_Paint* paint, Tvg_Paint* clipper) -> Tvg_Result tvg_paint_set_clip(Tvg_Paint* paint, Tvg_Paint* clipper); Please note that clipper type can be changed again to tvg::Path in the upcoming update.	2025-05-29 14:02:32 +09:00
Hermet Park	e2909dd6a4	sw_engine: replace RLE memory with common array ... This commit has two purposes: - refactoring to introduce y indexing method for the upcoming partial rendering. - replaces the RLE-specific memory allocation with a shared array structure, eliminating potential memory overflows during RLE clipping.	2025-05-28 23:17:18 +09:00
Sergii Liebodkin	d0be8cd2bd	gl_engine: fix compilation warning with RenderRegion data type	2025-05-28 19:20:47 +09:00
Hermet Park	dc8c5bce50	sw_engine: code refactoring ... just renamed internal variables (region -> bbox) for the sake of a shorter name, no logical changes.	2025-05-28 11:41:52 +09:00
Hermet Park	cc72eda465	sw_engine: unify RenderRegion and SwBBox ... refactored for smoother data flow through the rendering pipeline.	2025-05-28 11:41:52 +09:00
Hermet Park	8a35f02105	renderer/engines: redesigned RenderRegion property layout ... redefiend properties so that min/max are prioritized, as they are accessed more frequently than pos/size during rendering calculations. also introduced miscellaneous functions to improve usability.	2025-05-28 11:41:52 +09:00
Hermet Park	04b7bb4f25	renderer: allow empty content during canvas rendering ... This allow more generous handling of failure cases for invalid content, thorvg can draw other successful contents. Now, only raster engines can return fail cases in the picture.	2025-05-28 00:48:48 +09:00
Hermet Park	b221eed7fa	renderer: chores	2025-05-27 17:58:10 +09:00
Mira Grudzinska	211fee73e2	lottie: fix precomposition with masking ... A precomposition layer is clipped to its viewport. If the same layer also had a mask that was optimized using clipping, this clip was unintentionally overridden by the viewport clipping. This conflict is now fixed.	2025-05-26 19:26:45 +09:00
Sergii Liebodkin	55847bdcb3	gl_engine: fix memoty leak on target resize ... We must to remove offscreen render buffers during removing render target https://github.com/thorvg/thorvg/issues/3210	2025-05-25 23:04:12 +09:00
Hermet Park	32c38041db	sw_engine: added diagnostics for potential issues	2025-05-22 16:12:42 +09:00
Mira Grudzinska	1b72113fcc	sw_engine: fix too small memory alloc for spans ... In some clipping cases, the memory allocated for storing spans was too small. As a result, the entire clipped area might not have been rendered. This has been resolved by adding an experimental factor to increase the size of allocated memory. @issue: https://github.com/thorvg/thorvg/issues/3461	2025-05-22 16:03:04 +09:00
Hermet Park	1d0973cdf0	wasm: enable software only it's valid	2025-05-22 15:34:58 +09:00
Hermet Park	e01ccb5db9	sw_engine: handle an exception ASAP	2025-05-21 17:30:32 +09:00
JunsuChoi	c41b2c2a1c	svg_loader: Fix <stop> being registered in closed latestGradient ... If stop is declared immediately after Gradient is closed, the stop is registered in latestGradient. Change latestGradient to a Stack and add a stop only to the last added gradient. When that gradient is closed, no more stops should be registered for that gradient. And gradients do not allow nested declarations, so only the earliest declared Gradient is valid.	2025-05-21 11:41:03 +09:00
Benson Muite	633bcd3176	tools/lottie2gif: typo fix	2025-05-16 16:05:18 +09:00
Hermet Park	e98b87892b	gl_engine: revert some wrong change ... my fault. signed value should be respected from cd12618529	2025-05-16 02:08:25 +09:00
Hermet Park	97d96a7f8b	Update README.md ... added deepwiki	2025-05-16 00:54:23 +09:00
Hermet Park	bace6b9e52	lottie: removed undesired embedded option. ... Use local font by default and fall back if no glyphs exist. Co-Authored-By: Mira Grudzinska <mira@lottiefiles.com>	2025-05-15 19:21:24 +09:00