mesa: fix signed/unsignd mix-up in fetch_signed_l_latc1()
authorBrian Paul <brianp@vmware.com>
Wed, 2 Jan 2013 16:00:36 +0000 (09:00 -0700)
committerBrian Paul <brianp@vmware.com>
Wed, 2 Jan 2013 16:02:04 +0000 (09:02 -0700)
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=58844

src/mesa/main/texcompress_rgtc.c

index fa9172aa2827127b130002d0d314e970ab884571..1f8de25ec812bcf17716a6eaf2e15a58adfd969b 100644 (file)
@@ -364,9 +364,10 @@ fetch_signed_l_latc1(const GLubyte *map, const GLuint imageOffsets[],
                      GLint rowStride, GLint i, GLint j, GLint k,
                      GLfloat *texel)
 {
-   GLubyte red;
+   GLbyte red;
    GLuint sliceOffset = k ? imageOffsets[k] / 2 : 0;
-   unsigned_fetch_texel_rgtc(rowStride,  map + sliceOffset, i, j, &red, 1);
+   signed_fetch_texel_rgtc(rowStride, (GLbyte *) map + sliceOffset,
+                           i, j, &red, 1);
    texel[RCOMP] =
    texel[GCOMP] =
    texel[BCOMP] = BYTE_TO_FLOAT(red);