softpipe: fix integer texture swizzling for 1 vs 1.0f

[mesa.git] / src / gallium / drivers / softpipe / sp_tex_sample.c

diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.c b/src/gallium/drivers/softpipe/sp_tex_sample.c
index 92c78da86f369f83f231c72426b730b5262233f8..26d38296073b55b4f352de9b65edbc164e2a913a 100644 (file)
--- a/src/gallium/drivers/softpipe/sp_tex_sample.c
+++ b/src/gallium/drivers/softpipe/sp_tex_sample.c
@@ -2754,6 +2754,7 @@ do_swizzling(const struct pipe_sampler_view *sview,
    const unsigned swizzle_g = sview->swizzle_g;
    const unsigned swizzle_b = sview->swizzle_b;
    const unsigned swizzle_a = sview->swizzle_a;
+   float oneval = util_format_is_pure_integer(sview->format) ? uif(1) : 1.0f;
 
    switch (swizzle_r) {
    case PIPE_SWIZZLE_0:
@@ -2762,7 +2763,7 @@ do_swizzling(const struct pipe_sampler_view *sview,
       break;
    case PIPE_SWIZZLE_1:
       for (j = 0; j < 4; j++)
-         out[0][j] = 1.0f;
+         out[0][j] = oneval;
       break;
    default:
       assert(swizzle_r < 4);
@@ -2777,7 +2778,7 @@ do_swizzling(const struct pipe_sampler_view *sview,
       break;
    case PIPE_SWIZZLE_1:
       for (j = 0; j < 4; j++)
-         out[1][j] = 1.0f;
+         out[1][j] = oneval;
       break;
    default:
       assert(swizzle_g < 4);
@@ -2792,7 +2793,7 @@ do_swizzling(const struct pipe_sampler_view *sview,
       break;
    case PIPE_SWIZZLE_1:
       for (j = 0; j < 4; j++)
-         out[2][j] = 1.0f;
+         out[2][j] = oneval;
       break;
    default:
       assert(swizzle_b < 4);
@@ -2807,7 +2808,7 @@ do_swizzling(const struct pipe_sampler_view *sview,
       break;
    case PIPE_SWIZZLE_1:
       for (j = 0; j < 4; j++)
-         out[3][j] = 1.0f;
+         out[3][j] = oneval;
       break;
    default:
       assert(swizzle_a < 4);