diff options
Diffstat (limited to 'src/gallium/drivers/i915/i915_fpc_translate.c')
| -rw-r--r-- | src/gallium/drivers/i915/i915_fpc_translate.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/gallium/drivers/i915/i915_fpc_translate.c b/src/gallium/drivers/i915/i915_fpc_translate.c index 345f8609805..7e36f2f0736 100644 --- a/src/gallium/drivers/i915/i915_fpc_translate.c +++ b/src/gallium/drivers/i915/i915_fpc_translate.c @@ -364,10 +364,9 @@ emit_tex(struct i915_fp_compile *p, const struct i915_full_instruction *inst, uint32_t sampler = i915_emit_decl(p, REG_TYPE_S, unit, tex); uint32_t coord = src_vector(p, &inst->Src[0], fs); - /* For 1D textures, make sure that the Y coordinate is actually - * initialized. It seems that if the channel is never written during the - * program, texturing returns undefined results (even if the Y wrap is - * REPEAT). + /* For 1D textures, set the Y coord to the same as X. Otherwise, we could + * select the wrong LOD based on the uninitialized Y coord when we sample our + * 1D textures as 2D. */ if (texture == TGSI_TEXTURE_1D || texture == TGSI_TEXTURE_SHADOW1D) coord = swizzle(coord, X, X, Z, W); |