From ee39a6e6a93df2dfe15572baab455d135d46e469 Mon Sep 17 00:00:00 2001
From: CamilleLaVey <camillelavey99@gmail.com>
Date: Sat, 15 Nov 2025 14:10:42 +0100
Subject: [PATCH] revert [android] Snapdragon 865 patches (#23)
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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>