Luminance is the least-significant byte of the uint16, rather than the
lowest byte in memory. Other parts of mesa already handle this correctly
for big-endian, and swrast already handles other MESA_FORMAT_x8y8 formats
correctly. This case was just an odd-one-out.
Signed-off-by: Richard Sandiford <rsand...@linux.vnet.ibm.com>
---
src/mesa/swrast/s_texfetch_tmp.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/mesa/swrast/s_texfetch_tmp.h b/src/mesa/swrast/s_texfetch_tmp.h
index deda592..0fce355 100644
--- a/src/mesa/swrast/s_texfetch_tmp.h
+++ b/src/mesa/swrast/s_texfetch_tmp.h
@@ -808,11 +808,11 @@ static void
FETCH(L8A8_SRGB)(const struct swrast_texture_image *texImage,
GLint i, GLint j, GLint k, GLfloat *texel)
{
- const GLubyte *src = TEXEL_ADDR(GLubyte, texImage, i, j, k, 2);
+ const GLushort s = *TEXEL_ADDR(GLushort, texImage, i, j, k, 1);
texel[RCOMP] =
texel[GCOMP] =
- texel[BCOMP] = nonlinear_to_linear(src[0]);
- texel[ACOMP] = UBYTE_TO_FLOAT(src[1]); /* linear */
+ texel[BCOMP] = nonlinear_to_linear(s & 0xff);
+ texel[ACOMP] = UBYTE_TO_FLOAT(s >> 8); /* linear */
}
--
1.8.3.1
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