From: lordhavoc <lordhavoc@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Wed, 15 May 2002 02:25:08 +0000 (+0000)
Subject: slight optimizations to GL_ConvertColorsFloattoByte
X-Git-Tag: RELEASE_0_2_0_RC1~517
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=50749f7e6a4d2cfc27b95774a67045a87c98b5da;p=xonotic%2Fdarkplaces.git

slight optimizations to GL_ConvertColorsFloattoByte


git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@1833 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/gl_backend.c b/gl_backend.c
index 5cdf1153..42cbcf34 100644
--- a/gl_backend.c
+++ b/gl_backend.c
@@ -581,25 +581,33 @@ void GL_UpdateFarclip(void)
 
 void GL_ConvertColorsFloatToByte(void)
 {
-	int i, k, *icolor;
+	int i, k, total, *icolor;
 	float *fcolor;
 	qbyte *bcolor;
 
+	total = currentvertex * 4;
+
 	// shift float to have 8bit fraction at base of number
-	for (i = 0, fcolor = &buf_fcolor->c[0];i < currentvertex;i++)
+	fcolor = &buf_fcolor->c[0];
+	for (i = 0;i < total;)
 	{
-		*fcolor++ += 32768.0f;
-		*fcolor++ += 32768.0f;
-		*fcolor++ += 32768.0f;
-		*fcolor++ += 32768.0f;
+		fcolor[i    ] += 32768.0f;
+		fcolor[i + 1] += 32768.0f;
+		fcolor[i + 2] += 32768.0f;
+		fcolor[i + 3] += 32768.0f;
+		i += 4;
 	}
+
 	// then read as integer and kill float bits...
-	for (i = 0, icolor = (int *)&buf_fcolor->c[0], bcolor = &buf_bcolor->c[0];i < currentvertex;i++)
-	{
-		k = (*icolor++) & 0x7FFFFF;*bcolor++ = k > 255 ? 255 : k;
-		k = (*icolor++) & 0x7FFFFF;*bcolor++ = k > 255 ? 255 : k;
-		k = (*icolor++) & 0x7FFFFF;*bcolor++ = k > 255 ? 255 : k;
-		k = (*icolor++) & 0x7FFFFF;*bcolor++ = k > 255 ? 255 : k;
+	icolor = (int *)&buf_fcolor->c[0];
+	bcolor = &buf_bcolor->c[0];
+	for (i = 0;i < total;)
+	{
+		k = icolor[i    ] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i    ] = (qbyte) k;
+		k = icolor[i + 1] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 1] = (qbyte) k;
+		k = icolor[i + 2] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 2] = (qbyte) k;
+		k = icolor[i + 3] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 3] = (qbyte) k;
+		i += 4;
 	}
 }