r300: Fix emit size prediction to know about primitive splitting.

[mesa.git] / src / mesa / state_tracker / st_program.c

diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index feaac013c1a6f864a4ac220334d2fbd36d8b540c..21ad6fef2b47788f65a73f17ae1b6b273fac5eb8 100644 (file)
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -44,7 +44,6 @@
 
 #include "st_debug.h"
 #include "st_context.h"
-#include "st_atom.h"
 #include "st_program.h"
 #include "st_mesa_to_tgsi.h"
 #include "cso_cache/cso_context.h"
@@ -102,6 +101,8 @@ st_prepare_vertex_program(struct st_context *st,
    if (stvp->Base.IsPositionInvariant)
       _mesa_insert_mvp_code(st->ctx, &stvp->Base);
 
+   assert(stvp->Base.Base.NumInstructions > 1);
+
    /*
     * Determine number of inputs, the mappings between VERT_ATTRIB_x
     * and TGSI generic input indexes, plus input attrib semantic info.
@@ -268,24 +269,20 @@ fail:
 
 /**
  * Translate a Mesa fragment shader into a TGSI shader.
- * \param inputMapping  to map fragment program input registers to TGSI
- *                      input slots
  * \return  pointer to cached pipe_shader object.
  */
 void
 st_translate_fragment_program(struct st_context *st,
-                              struct st_fragment_program *stfp,
-                              const GLuint inputMapping[])
+                              struct st_fragment_program *stfp )
 {
    struct pipe_context *pipe = st->pipe;
    GLuint outputMapping[FRAG_RESULT_MAX];
-   GLuint defaultInputMapping[FRAG_ATTRIB_MAX];
+   GLuint inputMapping[FRAG_ATTRIB_MAX];
    GLuint interpMode[16];  /* XXX size? */
    GLuint attr;
    enum pipe_error error;
    const GLbitfield inputsRead = stfp->Base.Base.InputsRead;
    struct ureg_program *ureg;
-   GLuint vslot = 0;
 
    uint fs_num_inputs = 0;
 
@@ -293,24 +290,14 @@ st_translate_fragment_program(struct st_context *st,
    ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
    uint fs_num_outputs = 0;
 
-   /* which vertex output goes to the first fragment input: */
-   if (inputsRead & FRAG_BIT_WPOS)
-      vslot = 0;
-   else
-      vslot = 1;
-
    /*
     * Convert Mesa program inputs to TGSI input register semantics.
     */
    for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) {
       if (inputsRead & (1 << attr)) {
-         const GLuint slot = fs_num_inputs;
-
-         defaultInputMapping[attr] = slot;
-
-         stfp->input_map[slot] = vslot++;
+         const GLuint slot = fs_num_inputs++;
 
-         fs_num_inputs++;
+         inputMapping[attr] = slot;
 
          switch (attr) {
          case FRAG_ATTRIB_WPOS:
@@ -338,6 +325,16 @@ st_translate_fragment_program(struct st_context *st,
             stfp->input_semantic_index[slot] = 0;
             interpMode[slot] = TGSI_INTERPOLATE_CONSTANT;
             break;
+         case FRAG_ATTRIB_PNTC:
+            /* This is a hack.  We really need a new semantic label for
+             * point coord.  The draw module needs to know which fragment
+             * shader input is the point coord attribute so that it can set
+             * up the right vertex attribute values.
+             */
+            stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC;
+            stfp->input_semantic_index[slot] = 0;
+            interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
+            break;
 
             /* In most cases, there is nothing special about these
              * inputs, so adopt a convention to use the generic
@@ -362,7 +359,6 @@ st_translate_fragment_program(struct st_context *st,
          case FRAG_ATTRIB_TEX5:
          case FRAG_ATTRIB_TEX6:
          case FRAG_ATTRIB_TEX7:
-         case FRAG_ATTRIB_PNTC:
          case FRAG_ATTRIB_VAR0:
          default:
             /* Actually, let's try and zero-base this just for
@@ -375,6 +371,9 @@ st_translate_fragment_program(struct st_context *st,
             break;
          }
       }
+      else {
+        inputMapping[attr] = -1;
+      }
    }
 
    /*
@@ -416,9 +415,6 @@ st_translate_fragment_program(struct st_context *st,
       }
    }
 
-   if (!inputMapping)
-      inputMapping = defaultInputMapping;
-
    ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT );
    if (ureg == NULL)
       return;