diff options
| -rw-r--r-- | src/mesa/main/texcompress_rgtc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/main/texcompress_rgtc.c b/src/mesa/main/texcompress_rgtc.c index ebdaaf4755d..6b4e3b13cbe 100644 --- a/src/mesa/main/texcompress_rgtc.c +++ b/src/mesa/main/texcompress_rgtc.c @@ -321,7 +321,7 @@ static void _fetch_texel_rgtc_u(GLint srcRowStride, const GLubyte *pixdata, const GLubyte alpha1 = blksrc[1]; const GLubyte bit_pos = ((j&3) * 4 + (i&3)) * 3; const GLubyte acodelow = blksrc[2 + bit_pos / 8]; - const GLubyte acodehigh = blksrc[3 + bit_pos / 8]; + const uint8_t acodehigh = (3 + bit_pos / 8) < 8 ? blksrc[3 + bit_pos / 8] : 0; const GLubyte code = (acodelow >> (bit_pos & 0x7) | (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7; @@ -351,7 +351,7 @@ static void _fetch_texel_rgtc_s(GLint srcRowStride, const GLbyte *pixdata, const GLbyte alpha1 = blksrc[1]; const GLbyte bit_pos = ((j&3) * 4 + (i&3)) * 3; const GLbyte acodelow = blksrc[2 + bit_pos / 8]; - const GLbyte acodehigh = blksrc[3 + bit_pos / 8]; + const uint8_t acodehigh = (3 + bit_pos / 8) < 8 ? blksrc[3 + bit_pos / 8] : 0; const GLbyte code = (acodelow >> (bit_pos & 0x7) | (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7; |