From 417aad5a992c8d7659438d20f82b4cf405c9c7b2 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sun, 18 Dec 2011 21:25:15 +0000 Subject: [PATCH] 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 Reviewed-by: Brian Paul --- src/gallium/drivers/softpipe/sp_tex_sample.c | 23 ++++++++++++++------ 1 file changed, 16 insertions(+), 7 deletions(-) diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.c b/src/gallium/drivers/softpipe/sp_tex_sample.c index 72629a0bcac..43f201f7784 100644 --- a/src/gallium/drivers/softpipe/sp_tex_sample.c +++ b/src/gallium/drivers/softpipe/sp_tex_sample.c @@ -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); - - /* 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; + 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; + } + } else { + for (j = 0; j < 4; j++) { + rgba[0][j] = k0; + rgba[1][j] = k1; + rgba[2][j] = k2; + rgba[3][j] = 1.0F; + } } } -- 2.30.2