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revert [vk] Fix fallback viewport/scissor origin handling (#294) When viewport_scale_offset_enabled is disabled, the fallback path previously assumed a top-left origin for both viewport and scissor. This caused incorrect positioning or inverted geometry when the GPU state expected a lower-left origin. This change: - Adjusts viewport setup: if window_origin is lower-left, shift Y and flip height negative to emulate lower-left in Vulkan’s top-left space. - Updates scissor setup: recalculates Y for lower-left origin and ensures width/height fall back to 1 if zero, avoiding invalid extents. This aligns Vulkan’s viewport/scissor behavior with Maxwell state, fixing rendering issues in paths without scale/offset enabled. Co-authored-by: MaranBr <maranbr@outlook.com> Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/294 Co-authored-by: Shinmegumi <shinmegumi@eden-emu.dev> Co-committed-by: Shinmegumi <shinmegumi@eden-emu.dev>pull/3024/head
John
3 months ago