Checkpoint: vertex attribute clean-up.

Remove/disable the attrib/slot mapping arrays in a few places.
Work in progress...

src/mesa/pipe/draw/draw_clip.c

@@ -382,8 +382,10 @@ static void clip_begin( struct draw_stage *stage )
 {
    /* sanity checks.  If these fail, review the clip/interp code! */
    assert(stage->draw->vertex_info.num_attribs >= 3);
+#if 0
    assert(stage->draw->vertex_info.slot_to_attrib[0] == TGSI_ATTRIB_VERTEX_HEADER);
    assert(stage->draw->vertex_info.slot_to_attrib[1] == TGSI_ATTRIB_CLIP_POS);
+#endif
 
    stage->next->begin( stage->next );
 }

src/mesa/pipe/draw/draw_feedback.c

@@ -78,7 +78,7 @@ feedback_vertex(struct draw_stage *stage, const struct vertex_header *vertex)
     * we can either address output buffer 0 (for interleaving) or
     * output buffer i (for non-interleaved).
     */
-
+#if 0
    for (i = 0; i < feedback->num_attribs; i++) {
       const uint attr = feedback->attrib[i];
       const uint slot = stage->draw->vertex_info.attrib_to_slot[attr];
@@ -104,6 +104,7 @@ feedback_vertex(struct draw_stage *stage, const struct vertex_header *vertex)
       }
       fs->dest[i * select] += size;
    }
+#endif
 
    fs->num_vert_emitted++;
 }

src/mesa/pipe/draw/draw_private.h

@@ -62,7 +62,7 @@ struct vertex_header {
 };
 
 /* XXX This is too large */
-#define MAX_VERTEX_SIZE ((2 + TGSI_ATTRIB_MAX) * 4 * sizeof(float))
+#define MAX_VERTEX_SIZE ((2 + PIPE_MAX_SHADER_OUTPUTS) * 4 * sizeof(float))
 
 
 

src/mesa/pipe/draw/draw_vertex.c

@@ -45,17 +45,10 @@
 
 
 static INLINE void
-emit_vertex_attr(struct vertex_info *vinfo, uint vfAttr,
+emit_vertex_attr(struct vertex_info *vinfo, /*uint vfAttr,*/
                  attrib_format format, interp_mode interp)
 {
    const uint n = vinfo->num_attribs;
-   vinfo->attr_mask |= (1 << vfAttr);
-   vinfo->slot_to_attrib[n] = vfAttr;
-   if (n >= 2) {
-      /* the first two slots are the vertex header & clippos */
-      assert(vfAttr < Elements(vinfo->attrib_to_slot));
-      vinfo->attrib_to_slot[vfAttr] = n - 2;
-   }
    vinfo->interp_mode[n] = interp;
    vinfo->format[n] = format;
    vinfo->num_attribs++;
@@ -110,22 +103,24 @@ draw_set_vertex_attributes( struct draw_context *draw,
    struct vertex_info *vinfo = &draw->vertex_info;
    unsigned i;
 
+#if 0
    assert(slot_to_vf_attr[0] == TGSI_ATTRIB_POS);
+#endif
 
    memset(vinfo, 0, sizeof(*vinfo));
 
    /*
     * First three attribs are always the same: header, clip pos, winpos
     */
-   emit_vertex_attr(vinfo, TGSI_ATTRIB_VERTEX_HEADER, FORMAT_1F, INTERP_NONE);
+   emit_vertex_attr(vinfo, /*TGSI_ATTRIB_VERTEX_HEADER,*/ FORMAT_1F, INTERP_NONE);
-   emit_vertex_attr(vinfo, TGSI_ATTRIB_CLIP_POS, FORMAT_4F, INTERP_LINEAR);
+   emit_vertex_attr(vinfo, /*TGSI_ATTRIB_CLIP_POS,*/ FORMAT_4F, INTERP_LINEAR);
-   emit_vertex_attr(vinfo, TGSI_ATTRIB_POS, FORMAT_4F_VIEWPORT, INTERP_LINEAR);
+   emit_vertex_attr(vinfo, /*TGSI_ATTRIB_POS,*/ FORMAT_4F_VIEWPORT, INTERP_LINEAR);
 
    /*
     * Remaining attribs (color, texcoords, etc)
     */
    for (i = 1; i < nr_attrs; i++) {
-      emit_vertex_attr(vinfo, slot_to_vf_attr[i], FORMAT_4F, interps[i]);
+      emit_vertex_attr(vinfo, /*slot_to_vf_attr[i],*/ FORMAT_4F, interps[i]);
    }
 
    draw_compute_vertex_size(vinfo);

src/mesa/pipe/draw/draw_vertex.h

@@ -68,16 +68,15 @@ typedef enum {
 } interp_mode;
 
 
-
+/**
+ * Information about post-transformed vertex layout.
+ */
 struct vertex_info
 {
    uint num_attribs;
    uint hwfmt[4];      /**< hardware format info for this format */
-   uint attr_mask;     /**< mask of VF_ATTR_ bits */
+   interp_mode interp_mode[PIPE_MAX_SHADER_OUTPUTS];
-   uint slot_to_attrib[MAX_VERT_ATTRIBS];
+   attrib_format format[PIPE_MAX_SHADER_OUTPUTS];   /**< FORMAT_x */
-   uint attrib_to_slot[TGSI_ATTRIB_MAX];
-   interp_mode interp_mode[MAX_VERT_ATTRIBS];
-   attrib_format format[MAX_VERT_ATTRIBS];   /**< FORMAT_x */
    uint size;          /**< total vertex size in dwords */
 };
 
@@ -92,9 +91,10 @@ draw_emit_vertex_attr(struct vertex_info *vinfo, uint vfAttr,
                       attrib_format format, interp_mode interp)
 {
    const uint n = vinfo->num_attribs;
-   assert(n < MAX_VERT_ATTRIBS);
+   assert(n < PIPE_MAX_SHADER_OUTPUTS);
+   /*
    vinfo->attr_mask |= (1 << vfAttr);
-   vinfo->slot_to_attrib[n] = vfAttr;
+   */
    vinfo->format[n] = format;
    vinfo->interp_mode[n] = interp;
    vinfo->num_attribs++;

src/mesa/pipe/draw/draw_vertex_fetch.c

@@ -81,6 +81,9 @@ void draw_vertex_fetch( struct draw_context *draw,
    /* loop over vertices */
    for (j = 0; j < count; j++) {
       uint attr;
+
+      /*printf("fetch vertex %u: \n", j);*/
+
       /* loop over vertex attributes (vertex shader inputs) */
       for (attr = 0; attr < draw->vertex_shader.num_inputs; attr++) {
 
@@ -94,6 +97,8 @@ void draw_vertex_fetch( struct draw_context *draw,
 
          fetch_attrib4(src, draw->vertex_element[attr].src_format, p);
 
+         /*printf("  %u: %f %f %f %f\n", attr, p[0], p[1], p[2], p[3]);*/
+
          machine->Inputs[attr].xyzw[0].f[j] = p[0]; /*X*/
          machine->Inputs[attr].xyzw[1].f[j] = p[1]; /*Y*/
          machine->Inputs[attr].xyzw[2].f[j] = p[2]; /*Z*/

src/mesa/pipe/i915simple/i915_state_derived.c

@@ -173,7 +173,7 @@ static void calculate_vertex_layout( struct i915_context *i915 )
     * vertex layout.  We'll also update the hardware vertex format info.
     */
    draw_set_vertex_attributes( i915->draw,
-                               vinfo->slot_to_attrib,
+                               NULL,/*vinfo->slot_to_attrib,*/
                                vinfo->interp_mode,
 			       vinfo->num_attribs);
 

src/mesa/pipe/softpipe/sp_context.h

@@ -111,6 +111,7 @@ struct softpipe_context {
    unsigned nr_frag_attrs;  /**< number of active fragment attribs */
    boolean need_z;  /**< produce quad/fragment Z values? */
    boolean need_w;  /**< produce quad/fragment W values? */
+   int psize_slot;
 
    /** Feedback buffers */
    struct pipe_feedback_buffer feedback_buffer[PIPE_MAX_FEEDBACK_ATTRIBS];

src/mesa/pipe/softpipe/sp_prim_setup.c

@@ -79,8 +79,6 @@ struct setup_stage {
 
    float oneoverarea;
 
-   const unsigned *lookup;  /**< vertex attribute positions */
-
    struct tgsi_interp_coef coef[TGSI_ATTRIB_MAX];
    struct quad_header quad; 
 
@@ -249,7 +247,7 @@ static void print_vertex(const struct setup_stage *setup,
 {
    int i;
    printf("Vertex:\n");
-   for (i = 0; i < setup->softpipe->nr_attrs; i++) {
+   for (i = 0; i < setup->quad.nr_attrs; i++) {
       printf("  %d: %f %f %f\n",  i, 
           v->data[i][0], v->data[i][1], v->data[i][2]);
    }
@@ -907,8 +905,7 @@ setup_point(struct draw_stage *stage, struct prim_header *prim)
 {
    struct setup_stage *setup = setup_stage( stage );
    const struct vertex_header *v0 = prim->v[0];
-
+   const int sizeAttr = setup->softpipe->psize_slot;
-   const int sizeAttr = setup->lookup[TGSI_ATTRIB_POINTSIZE];
    const float halfSize
       = sizeAttr ? (0.5f * v0->data[sizeAttr][0])
         : (0.5f * setup->softpipe->rasterizer->point_size);
@@ -917,6 +914,8 @@ setup_point(struct draw_stage *stage, struct prim_header *prim)
    const float y = v0->data[TGSI_ATTRIB_POS][1];
    unsigned slot, j;
 
+   assert(sizeAttr >= 0);
+
    /* For points, all interpolants are constant-valued.
     * However, for point sprites, we'll need to setup texcoords appropriately.
     * XXX: which coefficients are the texcoords???
@@ -1097,7 +1096,5 @@ struct draw_stage *sp_draw_render_stage( struct softpipe_context *softpipe )
 
    setup->quad.coef = setup->coef;
 
-   setup->lookup = softpipe->draw->vertex_info.attrib_to_slot;
-
    return &setup->stage;
 }

src/mesa/pipe/softpipe/sp_state_derived.c

@@ -59,6 +59,8 @@ static void calculate_vertex_layout( struct softpipe_context *softpipe )
       softpipe->need_z = FALSE;
    softpipe->need_w = FALSE;
 
+   softpipe->psize_slot = -1;
+
    /* always emit vertex pos */
    /* TODO - Figure out if we need to do perspective divide, etc. */
    draw_emit_vertex_attr(vinfo, TGSI_ATTRIB_POS, FORMAT_4F, INTERP_LINEAR);
@@ -93,6 +95,7 @@ static void calculate_vertex_layout( struct softpipe_context *softpipe )
                                FORMAT_4F, INTERP_CONSTANT);
          break;
 #endif
+         softpipe->psize_slot = i;
          /*case TGSI_SEMANTIC_TEXCOORD:*/
       case TGSI_SEMANTIC_TEX0:
          draw_emit_vertex_attr(vinfo, TGSI_ATTRIB_TEX0,
@@ -131,10 +134,10 @@ static void calculate_vertex_layout( struct softpipe_context *softpipe )
     */
    /* XXX we also need to do this when the shading mode (interp modes) change: */
    if (1/*vinfo->attr_mask != softpipe->attr_mask*/) {
-      softpipe->attr_mask = vinfo->attr_mask;
+      /*softpipe->attr_mask = vinfo->attr_mask;*/
 
       draw_set_vertex_attributes( softpipe->draw,
-                                  vinfo->slot_to_attrib,
+                                  NULL,/*vinfo->slot_to_attrib,*/
                                   vinfo->interp_mode,
                                   vinfo->num_attribs);
 

src/mesa/state_tracker/st_atom_vs.c

@@ -57,7 +57,6 @@ const struct cso_vertex_shader *
 st_translate_vertex_shader(struct st_context *st,
                            struct st_vertex_program *stvp)
 {
-   GLuint outputMapping[PIPE_MAX_SHADER_INPUTS];
    struct pipe_shader_state vs;
    const struct cso_vertex_shader *cso;
    GLuint i;
@@ -83,6 +82,9 @@ st_translate_vertex_shader(struct st_context *st,
          case VERT_ATTRIB_COLOR1:
             vs.input_semantics[vs.num_inputs] = TGSI_SEMANTIC_COLOR1;
             break;
+         case VERT_ATTRIB_TEX0:
+            vs.input_semantics[vs.num_inputs] = TGSI_SEMANTIC_TEX0;
+            break;
          default:
             vs.input_semantics[vs.num_inputs] = TGSI_SEMANTIC_OTHER;
          }
@@ -95,11 +97,8 @@ st_translate_vertex_shader(struct st_context *st,
     */
    for (i = 0; i < VERT_RESULT_MAX; i++) {
       if (stvp->Base.Base.OutputsWritten & (1 << i)) {
-#if 0
+         /* put this attrib in the next available slot */
-         stvp->output_to_index[i] = vs.num_outputs;
+         st->vertex_attrib_to_slot[i] = vs.num_outputs;
-         stvp->index_to_output[vs.num_outputs] = i;
-#endif
-         outputMapping[i] = vs.num_outputs;
 
          switch (i) {
          case VERT_RESULT_HPOS:
@@ -129,11 +128,7 @@ st_translate_vertex_shader(struct st_context *st,
     */
    tgsi_mesa_compile_vp_program( &stvp->Base,
                                  stvp->input_to_index,
-#if 0
+                                 st->vertex_attrib_to_slot,
-                                 stvp->output_to_index,
-#else
-                                 outputMapping,
-#endif
                                  stvp->tokens, ST_FP_MAX_TOKENS );
 
 #if 0
@@ -195,6 +190,12 @@ static void update_vs( struct st_context *st )
       st->vp = stvp;
       st->state.vs = stvp->vs;
 
+#if 0
+      printf("###### bind vp tokens: %p %p  num_inp=%u\n",
+             stvp, stvp->tokens, stvp->vs->state.num_inputs);
+      if (TGSI_DEBUG)
+         tgsi_dump( stvp->tokens, 0 );
+#endif
       st->pipe->bind_vs_state(st->pipe, st->state.vs->data);
    }
 }

src/mesa/state_tracker/st_cb_clear.c

@@ -491,7 +491,7 @@ clear_depth_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
 
    assert(strb->surface->format);
 
-#if 01
+#if 0
    if (ctx->Scissor.Enabled ||
        (isDS && ctx->DrawBuffer->Visual.stencilBits > 0)) {
       /* scissoring or we have a combined depth/stencil buffer */

src/mesa/state_tracker/st_cb_feedback.c

@@ -87,6 +87,7 @@ static void
 feedback_vertex(GLcontext *ctx, const struct draw_context *draw,
                 const struct vertex_header *v)
 {
+   const struct st_context *st = ctx->st;
    GLfloat win[4];
    const GLfloat *color, *texcoord;
    const GLfloat ci = 0;
@@ -97,13 +98,18 @@ feedback_vertex(GLcontext *ctx, const struct draw_context *draw,
    win[2] = v->data[0][2];
    win[3] = 1.0F / v->data[0][3];
 
-   slot = draw->vertex_info.attrib_to_slot[TGSI_ATTRIB_COLOR0];
+   /* XXX
+    * When we compute vertex layout, save info about position of the
+    * color and texcoord attribs to use here.
+    */
+
+   slot = st->vertex_attrib_to_slot[VERT_RESULT_COL0];
    if (slot)
       color = v->data[slot];
    else
       color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
 
-   slot = draw->vertex_info.attrib_to_slot[TGSI_ATTRIB_TEX0];
+   slot = st->vertex_attrib_to_slot[VERT_RESULT_TEX0];
    if (slot)
       texcoord = v->data[slot];
    else

src/mesa/state_tracker/st_context.h

@@ -119,9 +119,17 @@ struct st_context
 
    GLfloat polygon_offset_scale; /* ?? */
 
-   struct st_vertex_program *vp;
+   /** Mapping from VERT_ATTRIB_x to post-transformed vertex slot */
-   struct st_fragment_program *fp;
+   GLuint vertex_attrib_to_slot[VERT_RESULT_MAX];
 
+   struct st_vertex_program *vp;    /**< Currently bound vertex program */
+   struct st_fragment_program *fp;  /**< Currently bound fragment program */
+
+   /**
+    * Buffer object which stores the ctx->Current.Attrib[] values.
+    * Used for vertex array drawing when we we need an attribute for
+    * which there's no enabled array.
+    */
    struct pipe_buffer_handle *default_attrib_buffer;
 
    struct cso_cache *cache;

src/mesa/state_tracker/st_program.h

@@ -71,11 +71,6 @@ struct st_vertex_program
    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
    GLuint index_to_input[MAX_VERTEX_PROGRAM_ATTRIBS];
 
-#if 0
-   GLuint output_to_index[MAX_VERTEX_PROGRAM_ATTRIBS];
-   GLuint index_to_output[MAX_VERTEX_PROGRAM_ATTRIBS];
-#endif
-
    /** The program in TGSI format */
    struct tgsi_token tokens[ST_FP_MAX_TOKENS];
    GLboolean dirty;