Render: Allow empty cliprect.
This fixes an issue where an empty cliprect is treated the same as a NULL cliprect, causing the render backends to disable clipping. Also adds a new API, SDL_RenderIsClipEnabled(render) that allows you to differentiate between: - SDL_RenderSetClipRect(render, NULL) - SDL_Rect r = {0,0,0,0}; SDL_RenderSetClipRect(render, &r); Fixes https://bugzilla.libsdl.org/show_bug.cgi?id=2504 --HG-- extra : amend_source : 9e5ac76e3f009d9ae49bc61c350df3ba891267b5 extra : histedit_source : b92b8be4d05b19a89fa0dee57f7ed6b1e924cb99%2Cce419f6ade87bafc78ff42702c1f263d2469e7e7
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11 changed files with 43 additions and 18 deletions
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@ -1145,12 +1145,13 @@ D3D_UpdateViewport(SDL_Renderer * renderer)
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static int
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D3D_UpdateClipRect(SDL_Renderer * renderer)
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{
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const SDL_Rect *rect = &renderer->clip_rect;
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D3D_RenderData *data = (D3D_RenderData *) renderer->driverdata;
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RECT r;
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HRESULT result;
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if (!SDL_RectEmpty(rect)) {
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if (renderer->clipping_enabled) {
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const SDL_Rect *rect = &renderer->clip_rect;
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RECT r;
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HRESULT result;
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IDirect3DDevice9_SetRenderState(data->device, D3DRS_SCISSORTESTENABLE, TRUE);
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r.left = rect->x;
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r.top = rect->y;
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