draw: rename vertex header members

clip -> clip_vertex and pre_clip_pos -> clip_pos.
Looks more obvious to me what these values actually represent (so use
something resembling the vs output names).

Reviewed-by: Brian Paul <[email protected]
Reviewed-by: Jose Fonseca <[email protected]>

6 files changed, 46 insertions, 42 deletions

diff --git a/src/gallium/auxiliary/draw/draw_cliptest_tmp.h b/src/gallium/auxiliary/draw/draw_cliptest_tmp.h
index c26d288525b..06c82c39429 100644
--- a/src/gallium/auxiliary/draw/draw_cliptest_tmp.h
+++ b/src/gallium/auxiliary/draw/draw_cliptest_tmp.h
@@ -91,8 +91,8 @@ static boolean TAG(do_cliptest)( struct pt_post_vs *pvs,
          }
 
          for (i = 0; i < 4; i++) {
-            out->clip[i] = clipvertex[i];
-            out->pre_clip_pos[i] = position[i];
+            out->clip_vertex[i] = clipvertex[i];
+            out->clip_pos[i] = position[i];
          }
 
          /* Do the hardwired planes first:
diff --git a/src/gallium/auxiliary/draw/draw_llvm.c b/src/gallium/auxiliary/draw/draw_llvm.c
index a66f270dfc6..934f4525381 100644
--- a/src/gallium/auxiliary/draw/draw_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_llvm.c
@@ -188,6 +188,7 @@ create_jit_sampler_type(struct gallivm_state *gallivm, const char *struct_name)
    sampler_type = LLVMStructTypeInContext(gallivm->context, elem_types,
                                           Elements(elem_types), 0);
 
+   (void) target; /* silence unused var warning for non-debug build */
    LP_CHECK_MEMBER_OFFSET(struct draw_jit_sampler, min_lod,
                           target, sampler_type,
                           DRAW_JIT_SAMPLER_MIN_LOD);
@@ -234,6 +235,8 @@ create_jit_context_type(struct gallivm_state *gallivm,
                                  PIPE_MAX_SAMPLERS); /* samplers */
    context_type = LLVMStructTypeInContext(gallivm->context, elem_types,
                                           Elements(elem_types), 0);
+
+   (void) target; /* silence unused var warning for non-debug build */
    LP_CHECK_MEMBER_OFFSET(struct draw_jit_context, vs_constants,
                           target, context_type, DRAW_JIT_CTX_CONSTANTS);
    LP_CHECK_MEMBER_OFFSET(struct draw_jit_context, num_vs_constants,
@@ -382,8 +385,8 @@ create_jit_vertex_header(struct gallivm_state *gallivm, int data_elems)
    util_snprintf(struct_name, 23, "vertex_header%d", data_elems);
 
    elem_types[DRAW_JIT_VERTEX_VERTEX_ID]  = LLVMIntTypeInContext(gallivm->context, 32);
-   elem_types[DRAW_JIT_VERTEX_CLIP]  = LLVMArrayType(LLVMFloatTypeInContext(gallivm->context), 4);
-   elem_types[DRAW_JIT_VERTEX_PRE_CLIP_POS]  = LLVMArrayType(LLVMFloatTypeInContext(gallivm->context), 4);
+   elem_types[DRAW_JIT_VERTEX_CLIP_VERTEX]  = LLVMArrayType(LLVMFloatTypeInContext(gallivm->context), 4);
+   elem_types[DRAW_JIT_VERTEX_CLIP_POS]  = LLVMArrayType(LLVMFloatTypeInContext(gallivm->context), 4);
    elem_types[DRAW_JIT_VERTEX_DATA]  = LLVMArrayType(elem_types[1], data_elems);
 
    vertex_header = LLVMStructTypeInContext(gallivm->context, elem_types,
@@ -403,12 +406,13 @@ create_jit_vertex_header(struct gallivm_state *gallivm, int data_elems)
       target, vertex_header,
       DRAW_JIT_VERTEX_VERTEX_ID);
    */
-   LP_CHECK_MEMBER_OFFSET(struct vertex_header, clip,
+   (void) target; /* silence unused var warning for non-debug build */
+   LP_CHECK_MEMBER_OFFSET(struct vertex_header, clip_vertex,
                           target, vertex_header,
-                          DRAW_JIT_VERTEX_CLIP);
-   LP_CHECK_MEMBER_OFFSET(struct vertex_header, pre_clip_pos,
+                          DRAW_JIT_VERTEX_CLIP_VERTEX);
+   LP_CHECK_MEMBER_OFFSET(struct vertex_header, clip_pos,
                           target, vertex_header,
-                          DRAW_JIT_VERTEX_PRE_CLIP_POS);
+                          DRAW_JIT_VERTEX_CLIP_POS);
    LP_CHECK_MEMBER_OFFSET(struct vertex_header, data,
                           target, vertex_header,
                           DRAW_JIT_VERTEX_DATA);
@@ -1015,7 +1019,7 @@ store_clip(struct gallivm_state *gallivm,
            const struct lp_type vs_type,
            LLVMValueRef io_ptr,
            LLVMValueRef (*outputs)[TGSI_NUM_CHANNELS],
-           boolean pre_clip_pos, int idx)
+           boolean clip_vertex, int idx)
 {
    LLVMBuilderRef builder = gallivm->builder;
    LLVMValueRef soa[4];
@@ -1042,13 +1046,13 @@ store_clip(struct gallivm_state *gallivm,
    soa[2] = LLVMBuildLoad(builder, outputs[idx][2], ""); /*z0 z1 .. zn*/
    soa[3] = LLVMBuildLoad(builder, outputs[idx][3], ""); /*w0 w1 .. wn*/
 
-   if (!pre_clip_pos) {
+   if (clip_vertex) {
       for (i = 0; i < vs_type.length; i++) {
-         clip_ptrs[i] = draw_jit_header_clip(gallivm, io_ptrs[i]);
+         clip_ptrs[i] = draw_jit_header_clip_vertex(gallivm, io_ptrs[i]);
       }
    } else {
       for (i = 0; i < vs_type.length; i++) {
-         clip_ptrs[i] = draw_jit_header_pre_clip_pos(gallivm, io_ptrs[i]);
+         clip_ptrs[i] = draw_jit_header_clip_pos(gallivm, io_ptrs[i]);
       }
    }
 
@@ -1767,8 +1771,8 @@ draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant,
 
       if (pos != -1 && cv != -1) {
          /* store original positions in clip before further manipulation */
-         store_clip(gallivm, vs_type, io, outputs, FALSE, key->clip_user ? cv : pos);
-         store_clip(gallivm, vs_type, io, outputs, TRUE, pos);
+         store_clip(gallivm, vs_type, io, outputs, TRUE, key->clip_user ? cv : pos);
+         store_clip(gallivm, vs_type, io, outputs, FALSE, pos);
 
          /* do cliptest */
          if (enable_cliptest) {
diff --git a/src/gallium/auxiliary/draw/draw_llvm.h b/src/gallium/auxiliary/draw/draw_llvm.h
index d153c166ead..c40df1c1342 100644
--- a/src/gallium/auxiliary/draw/draw_llvm.h
+++ b/src/gallium/auxiliary/draw/draw_llvm.h
@@ -104,8 +104,8 @@ enum {
 
 enum {
    DRAW_JIT_VERTEX_VERTEX_ID = 0,
-   DRAW_JIT_VERTEX_CLIP,
-   DRAW_JIT_VERTEX_PRE_CLIP_POS,
+   DRAW_JIT_VERTEX_CLIP_VERTEX,
+   DRAW_JIT_VERTEX_CLIP_POS,
    DRAW_JIT_VERTEX_DATA
 };
 
@@ -162,11 +162,11 @@ enum {
 #define draw_jit_header_id(_gallivm, _ptr)              \
    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_VERTEX_ID, "id")
 
-#define draw_jit_header_clip(_gallivm, _ptr) \
-   lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_CLIP, "clip")
+#define draw_jit_header_clip_vertex(_gallivm, _ptr) \
+   lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_CLIP_VERTEX, "clip_vertex")
 
-#define draw_jit_header_pre_clip_pos(_gallivm, _ptr) \
-   lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_PRE_CLIP_POS, "pre_clip_pos")
+#define draw_jit_header_clip_pos(_gallivm, _ptr) \
+   lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_CLIP_POS, "clip_pos")
 
 #define draw_jit_header_data(_gallivm, _ptr)            \
    lp_build_struct_get_ptr(_gallivm, _ptr, DRAW_JIT_VERTEX_DATA, "data")
diff --git a/src/gallium/auxiliary/draw/draw_pipe_clip.c b/src/gallium/auxiliary/draw/draw_pipe_clip.c
index f1bda94a16e..6adfdf876ee 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_clip.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_clip.c
@@ -151,15 +151,15 @@ static void interp(const struct clip_stage *clip,
 
    /* Interpolate the clip-space coords.
     */
-   interp_attr(dst->clip, t, in->clip, out->clip);
+   interp_attr(dst->clip_vertex, t, in->clip_vertex, out->clip_vertex);
    /* interpolate the clip-space position */
-   interp_attr(dst->pre_clip_pos, t, in->pre_clip_pos, out->pre_clip_pos);
+   interp_attr(dst->clip_pos, t, in->clip_pos, out->clip_pos);
 
    /* Do the projective divide and viewport transformation to get
     * new window coordinates:
     */
    {
-      const float *pos = dst->pre_clip_pos;
+      const float *pos = dst->clip_pos;
       const float *scale =
          clip->stage.draw->viewports[viewport_index].scale;
       const float *trans =
@@ -193,11 +193,11 @@ static void interp(const struct clip_stage *clip,
       t_nopersp = t;
       /* find either in.x != out.x or in.y != out.y */
       for (k = 0; k < 2; k++) {
-         if (in->pre_clip_pos[k] != out->pre_clip_pos[k]) {
+         if (in->clip_pos[k] != out->clip_pos[k]) {
             /* do divide by W, then compute linear interpolation factor */
-            float in_coord = in->pre_clip_pos[k] / in->pre_clip_pos[3];
-            float out_coord = out->pre_clip_pos[k] / out->pre_clip_pos[3];
-            float dst_coord = dst->pre_clip_pos[k] / dst->pre_clip_pos[3];
+            float in_coord = in->clip_pos[k] / in->clip_pos[3];
+            float out_coord = out->clip_pos[k] / out->clip_pos[3];
+            float dst_coord = dst->clip_pos[k] / dst->clip_pos[3];
             t_nopersp = (dst_coord - out_coord) / (in_coord - out_coord);
             break;
          }
@@ -308,10 +308,10 @@ static void emit_poly(struct draw_stage *stage,
                       stage->draw->rasterizer->flatshade_first);
          for (j = 0; j < 3; j++) {
             debug_printf("  Vert %d: clip: %f %f %f %f\n", j,
-                         header.v[j]->clip[0],
-                         header.v[j]->clip[1],
-                         header.v[j]->clip[2],
-                         header.v[j]->clip[3]);
+                         header.v[j]->clip_vertex[0],
+                         header.v[j]->clip_vertex[1],
+                         header.v[j]->clip_vertex[2],
+                         header.v[j]->clip_vertex[3]);
             for (k = 0; k < draw_num_shader_outputs(stage->draw); k++) {
                debug_printf("  Vert %d: Attr %d:  %f %f %f %f\n", j, k,
                             header.v[j]->data[k][0],
@@ -349,7 +349,7 @@ static inline float getclipdist(const struct clip_stage *clipper,
    if (plane_idx < 6) {
       /* ordinary xyz view volume clipping uses pos output */
       plane = clipper->plane[plane_idx];
-      dp = dot4(vert->pre_clip_pos, plane);
+      dp = dot4(vert->clip_pos, plane);
    }
    else if (clipper->have_clipdist) {
       /* pick the correct clipdistance element from the output vectors */
@@ -363,7 +363,7 @@ static inline float getclipdist(const struct clip_stage *clipper,
        * (clip will contain clipVertex output if available, pos otherwise).
        */
       plane = clipper->plane[plane_idx];
-      dp = dot4(vert->clip, plane);
+      dp = dot4(vert->clip_vertex, plane);
    }
    return dp;
 }
@@ -410,9 +410,9 @@ do_clip_tri(struct draw_stage *stage,
    viewport_index = draw_viewport_index(clipper->stage.draw, prov_vertex);
 
    if (DEBUG_CLIP) {
-      const float *v0 = header->v[0]->clip;
-      const float *v1 = header->v[1]->clip;
-      const float *v2 = header->v[2]->clip;
+      const float *v0 = header->v[0]->clip_vertex;
+      const float *v1 = header->v[1]->clip_vertex;
+      const float *v2 = header->v[2]->clip_vertex;
       debug_printf("Clip triangle:\n");
       debug_printf(" %f, %f, %f, %f\n", v0[0], v0[1], v0[2], v0[3]);
       debug_printf(" %f, %f, %f, %f\n", v1[0], v1[1], v1[2], v1[3]);
@@ -681,9 +681,9 @@ clip_point_guard_xy(struct draw_stage *stage, struct prim_header *header)
           * automatically). These would usually be captured by depth clip
           * too but this can be disabled.
           */
-         if (header->v[0]->clip[3] <= 0.0f ||
-             util_is_inf_or_nan(header->v[0]->clip[0]) ||
-             util_is_inf_or_nan(header->v[0]->clip[1]))
+         if (header->v[0]->clip_vertex[3] <= 0.0f ||
+             util_is_inf_or_nan(header->v[0]->clip_vertex[0]) ||
+             util_is_inf_or_nan(header->v[0]->clip_vertex[1]))
             return;
       }
       stage->next->point(stage->next, header);
diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h
index afc357914ea..7040d75a7fc 100644
--- a/src/gallium/auxiliary/draw/draw_private.h
+++ b/src/gallium/auxiliary/draw/draw_private.h
@@ -89,8 +89,8 @@ struct vertex_header {
    unsigned pad:1;
    unsigned vertex_id:16;
 
-   float clip[4];
-   float pre_clip_pos[4];
+   float clip_vertex[4];
+   float clip_pos[4];
 
    /* This will probably become float (*data)[4] soon:
     */
diff --git a/src/gallium/auxiliary/draw/draw_pt_so_emit.c b/src/gallium/auxiliary/draw/draw_pt_so_emit.c
index 20de26fd08a..261bd3467f9 100644
--- a/src/gallium/auxiliary/draw/draw_pt_so_emit.c
+++ b/src/gallium/auxiliary/draw/draw_pt_so_emit.c
@@ -275,7 +275,7 @@ void draw_pt_so_emit( struct pt_so_emit *emit,
    emit->generated_primitives = 0;
    emit->input_vertex_stride = input_verts->stride;
    if (emit->use_pre_clip_pos)
-      emit->pre_clip_pos = input_verts->verts->pre_clip_pos;
+      emit->pre_clip_pos = input_verts->verts->clip_pos;
 
    emit->inputs = (const float (*)[4])input_verts->verts->data;