fix(android/vulkan): fix rotated/tiled rendering on portrait Android devices — bump osu-framework to 2026.503.1

[Copilot]

Vulkan on Android rendered with 90° rotation, tiled/duplicated backgrounds, and garbled UI on portrait-panel devices (Adreno 740, e.g. Galaxy S23 Ultra class).

Root cause

winnerspiros/veldrid PR #18 set swapchainCi.preTransform = surfaceCapabilities.currentTransform (e.g. Rotate90KHR) to fix a black screen. This tells the compositor "I've already pre-rotated my content" — but Veldrid never applies an inverse rotation matrix to the scene. The hardware display controller then rotates again on top of an already-unrotated frame, producing the corruption visible in the screenshots.

The black screen that PR #18 "fixed" was actually caused by four separate Adreno 740 driver bugs — all since fixed independently (MAILBOX stalls, oversized texture-update batches, fragment shading rate SIGSEGV, push descriptor null pointer). With those resolved, preTransform = IDENTITY is correct and the compositor handles rotation transparently.

Fix (in winnerspiros/veldrid, veldrid commit b5c3cb2)

// Before (wrong — tells compositor "already rotated", but we never pre-rotate)
var preTransform = surfaceCapabilities.currentTransform;

// After — compositor applies currentTransform transparently, ~0.1 ms cost on Adreno 740
var preTransform = VkSurfaceTransformFlagsKHR.IdentityKHR;

This PR

Bumps ppy.osu.Framework / .Android / .iOS from 2026.502.4 → 2026.503.1 (osu-framework pack run #23, commit 02acb26d), which vendors the corrected veldrid.

• osu.Game/osu.Game.csproj — ppy.osu.Framework
• osu.Android.props — ppy.osu.Framework.Android
• osu.iOS.props — ppy.osu.Framework.iOS

[gitar-bot]

Important

You are using the Gitar free plan. Upgrade to unlock code review, CI analysis, auto-apply, custom automations, and more.

_Gitar