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render: Enable clipping for zero-sized rectangles

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Battle for Wesnoth apparently relies on being able to disable rendering
of UI elements by setting the clip rectangle to be empty.

Resolves: https://github.com/libsdl-org/SDL/issues/6896
Fixes: 00f05dcf "render: only enable clipping when the rectangle is valid"
Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie 2023-09-09 14:36:21 +01:00 • committed by Sam Lantinga
parent b388f6e32d
commit 8ad043fc38
1 changed files with 1 additions and 1 deletions
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src/render/SDL_render.c
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@ -2481,7 +2481,7 @@ int SDL_RenderSetClipRect(SDL_Renderer *renderer, const SDL_Rect *rect)
int retval;
CHECK_RENDERER_MAGIC(renderer, -1)
if (rect && rect->w > 0 && rect->h > 0) {
if (rect && rect->w >= 0 && rect->h >= 0) {
renderer->clipping_enabled = SDL_TRUE;
renderer->clip_rect.x = (double)rect->x * renderer->scale.x;
renderer->clip_rect.y = (double)rect->y * renderer->scale.y;