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softpipe: fix depth sampling for linear vs nearest. 

This sample compare was always doing linear, and this makes the
glsl-fs-shadow1DArray test render like the Intel driver.

fix wrong 0->j from initial patch

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Dave Airlie 2011-12-18 21:25:15 +00:00
parent 07eeb92abc
commit 417aad5a99
1 changed files with 15 additions and 6 deletions
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21
src/gallium/drivers/softpipe/sp_tex_sample.c
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@ -2172,13 +2172,22 @@ sample_compare(struct tgsi_sampler *tgsi_sampler,
break;
}
/* convert four pass/fail values to an intensity in [0,1] */
val = 0.25F * (k0 + k1 + k2 + k3);
if (sampler->mag_img_filter == PIPE_TEX_FILTER_LINEAR) {
/* convert four pass/fail values to an intensity in [0,1] */
val = 0.25F * (k0 + k1 + k2 + k3);
/* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */
for (j = 0; j < 4; j++) {
rgba[0][j] = rgba[1][j] = rgba[2][j] = val;
rgba[3][j] = 1.0F;
/* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */
for (j = 0; j < 4; j++) {
rgba[0][j] = rgba[1][j] = rgba[2][j] = val;
rgba[3][j] = 1.0F;
}
} else {
for (j = 0; j < 4; j++) {
rgba[0][j] = k0;
rgba[1][j] = k1;
rgba[2][j] = k2;
rgba[3][j] = 1.0F;
}
}
}