From 470d2f0f4efe18652f3bcf6b738d8511cea332fd Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Thu, 1 Sep 2022 23:22:52 -0700
Subject: [PATCH] vertexjit: Remove unused ReadUV() cases.

---
 GPU/Common/VertexDecoderCommon.cpp |  1 +
 GPU/Common/VertexDecoderCommon.h   | 34 ++++--------------------------
 2 files changed, 5 insertions(+), 30 deletions(-)

diff --git a/GPU/Common/VertexDecoderCommon.cpp b/GPU/Common/VertexDecoderCommon.cpp
index e8d3310eed..6ac9806c01 100644
--- a/GPU/Common/VertexDecoderCommon.cpp
+++ b/GPU/Common/VertexDecoderCommon.cpp
@@ -1265,6 +1265,7 @@ void VertexDecoder::SetVertexType(u32 fmt, const VertexDecoderOptions &options,
 	}
 
 	_assert_msg_(decFmt.posfmt == DEC_FLOAT_3, "Reader only supports float pos");
+	_assert_msg_(decFmt.uvfmt == DEC_FLOAT_2 || decFmt.uvfmt == DEC_NONE, "Reader only supports float UV");
 
 	// Attempt to JIT as well. But only do that if the main CPU JIT is enabled, in order to aid
 	// debugging attempts - if the main JIT doesn't work, this one won't do any better, probably.
diff --git a/GPU/Common/VertexDecoderCommon.h b/GPU/Common/VertexDecoderCommon.h
index a12eb250c4..3d6377a86c 100644
--- a/GPU/Common/VertexDecoderCommon.h
+++ b/GPU/Common/VertexDecoderCommon.h
@@ -171,36 +171,10 @@ public:
 	}
 
 	void ReadUV(float uv[2]) const {
-		switch (decFmt_.uvfmt) {
-		case DEC_U8_2:
-			{
-				const u8 *b = (const u8 *)(data_ + decFmt_.uvoff);
-				uv[0] = b[0] * (1.f / 128.f);
-				uv[1] = b[1] * (1.f / 128.f);
-			}
-			break;
-
-		case DEC_U16_2:
-			{
-				const u16 *s = (const u16 *)(data_ + decFmt_.uvoff);
-				uv[0] = s[0] * (1.f / 32768.f);
-				uv[1] = s[1] * (1.f / 32768.f);
-			}
-			break;
-
-		case DEC_FLOAT_2:
-			{
-				const float *f = (const float *)(data_ + decFmt_.uvoff);
-				uv[0] = f[0];
-				uv[1] = f[1];
-			}
-			break;
-
-		default:
-			ERROR_LOG_REPORT_ONCE(fmtuv, G3D, "Reader: Unsupported UV Format %d", decFmt_.uvfmt);
-			memset(uv, 0, sizeof(float) * 2);
-			break;
-		}
+		// Only DEC_FLOAT_2 is supported.
+		const float *f = (const float *)(data_ + decFmt_.uvoff);
+		uv[0] = f[0];
+		uv[1] = f[1];
 	}
 
 	void ReadColor0(float color[4]) const {