From: lordhavoc <lordhavoc@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Tue, 30 Oct 2001 21:48:21 +0000 (+0000)
Subject: added R_TextureHasAlpha function to check if a loaded texture has alpha
X-Git-Tag: RELEASE_0_2_0_RC1~751
X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=commitdiff_plain;h=65b6fba19973d88a53a67425f025b32376507553;ds=sidebyside

added R_TextureHasAlpha function to check if a loaded texture has alpha


git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@986 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/gl_textures.c b/gl_textures.c
index 5ac0614f..eea2586d 100644
--- a/gl_textures.c
+++ b/gl_textures.c
@@ -725,3 +725,12 @@ int R_GetTextureSlots(int count)
 	gl_texture_number += count;
 	return i;
 }
+
+int R_TextureHasAlpha(rtexture_t *rt)
+{
+	gltexture_t *glt;
+	if (!rt)
+		return false;
+	glt = (gltexture_t *)rt;
+	return (glt->flags & TEXF_ALPHA) != 0;
+}
diff --git a/r_textures.h b/r_textures.h
index 9cfcca3e..fb4b844d 100644
--- a/r_textures.h
+++ b/r_textures.h
@@ -18,3 +18,4 @@ extern rtexture_t *R_LoadTexture (char *identifier, int width, int height, byte
 extern int R_GetTexture (rtexture_t *rt);
 // returns a GL texture slot (only used for lightmaps)
 extern int R_GetTextureSlots(int count);
+extern int R_TextureHasAlpha(rtexture_t *rt);