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Fixed destination coordinates when using scale with the software renderer

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Fixes https://github.com/libsdl-org/SDL/issues/14051
This commit is contained in:
Sam Lantinga
2025-10-03 13:57:19 -07:00
parent b7b2e8bc31
commit d333044462
1 changed files with 5 additions and 3 deletions
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8
src/render/software/SDL_render_sw.c
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@@ -924,9 +924,11 @@ static bool SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, v
PrepTextureForCopy(cmd, &drawstate);
// Apply viewport
if (drawstate.viewport && (drawstate.viewport->x || drawstate.viewport->y)) {
copydata->dstrect.x += drawstate.viewport->x;
copydata->dstrect.y += drawstate.viewport->y;
if (drawstate.viewport &&
(drawstate.viewport->x || drawstate.viewport->y) &&
(copydata->scale_x > 0.0f && copydata->scale_y > 0.0f)) {
copydata->dstrect.x += drawstate.viewport->x / copydata->scale_x;
copydata->dstrect.y += drawstate.viewport->y / copydata->scale_y;
}
SW_RenderCopyEx(renderer, surface, cmd->data.draw.texture, &copydata->srcrect,