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u_format/rgtc: fix alpha values in returned texels.

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This fixes fbo-generatemipmap-formats GL_EXT_texture_compression_rgtc
on llvmpipe.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2011-12-30 20:29:08 +00:00
parent 141d961d84
commit 0c6ee788f2
1 changed files with 10 additions and 1 deletions
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11
src/gallium/auxiliary/util/u_format_rgtc.c
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@ -42,6 +42,9 @@ void
util_format_rgtc1_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j)
{
u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1);
dst[1] = 0;
dst[2] = 0;
dst[3] = 255;
}
void
@ -58,6 +61,9 @@ util_format_rgtc1_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride
for(i = 0; i < bw; ++i) {
uint8_t *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*comps;
u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1);
dst[1] = 0;
dst[2] = 0;
dst[3] = 255;
}
}
src += block_size;
@ -229,6 +235,8 @@ util_format_rgtc2_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsi
{
u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2);
u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 1, 2);
dst[2] = 0;
dst[3] = 255;
}
void
@ -246,7 +254,8 @@ util_format_rgtc2_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride
uint8_t *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*comps;
u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2);
u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 1, 2);
dst[2] = 0;
dst[3] = 255;
}
}
src += block_size;