Merge remote branch 'origin/master' into gallium_draw_llvm

[mesa.git] / src / gallium / auxiliary / gallivm / lp_bld_sample.c

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.c b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
index 311c9f1b9e435d0cbd87c1f7e0c47d687c1152e2..2f74aa5e00a1f4d3fab3412f003d362b0721ed2f 100644 (file)
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
@@ -84,8 +84,12 @@ lp_sampler_static_state(struct lp_sampler_static_state *state,
    state->wrap_t            = sampler->wrap_t;
    state->wrap_r            = sampler->wrap_r;
    state->min_img_filter    = sampler->min_img_filter;
-   state->min_mip_filter    = sampler->min_mip_filter;
    state->mag_img_filter    = sampler->mag_img_filter;
+   if (texture->last_level) {
+      state->min_mip_filter = sampler->min_mip_filter;
+   } else {
+      state->min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
+   }
 
    state->compare_mode      = sampler->compare_mode;
    if (sampler->compare_mode != PIPE_TEX_COMPARE_NONE) {
@@ -155,14 +159,16 @@ lp_build_gather(LLVMBuilderRef builder,
 /**
  * Compute the offset of a pixel.
  *
- * x, y, y_stride are vectors
+ * x, y, z, y_stride, z_stride are vectors
  */
 LLVMValueRef
 lp_build_sample_offset(struct lp_build_context *bld,
                        const struct util_format_description *format_desc,
                        LLVMValueRef x,
                        LLVMValueRef y,
-                       LLVMValueRef y_stride)
+                       LLVMValueRef z,
+                       LLVMValueRef y_stride,
+                       LLVMValueRef z_stride)
 {
    LLVMValueRef x_stride;
    LLVMValueRef offset;
@@ -178,6 +184,10 @@ lp_build_sample_offset(struct lp_build_context *bld,
       LLVMValueRef y_offset_lo, y_offset_hi;
       LLVMValueRef offset_lo, offset_hi;
 
+      /* XXX 1D & 3D addressing not done yet */
+      assert(!z);
+      assert(!z_stride);
+
       x_lo = LLVMBuildAnd(bld->builder, x, bld->one, "");
       y_lo = LLVMBuildAnd(bld->builder, y, bld->one, "");
 
@@ -201,13 +211,17 @@ lp_build_sample_offset(struct lp_build_context *bld,
       offset = lp_build_add(bld, offset_hi, offset_lo);
    }
    else {
-      LLVMValueRef x_offset;
-      LLVMValueRef y_offset;
+      offset = lp_build_mul(bld, x, x_stride);
 
-      x_offset = lp_build_mul(bld, x, x_stride);
-      y_offset = lp_build_mul(bld, y, y_stride);
+      if (y && y_stride) {
+         LLVMValueRef y_offset = lp_build_mul(bld, y, y_stride);
+         offset = lp_build_add(bld, offset, y_offset);
+      }
 
-      offset = lp_build_add(bld, x_offset, y_offset);
+      if (z && z_stride) {
+         LLVMValueRef z_offset = lp_build_mul(bld, z, z_stride);
+         offset = lp_build_add(bld, offset, z_offset);
+      }
    }
 
    return offset;