Merge branch '7.8'

[mesa.git] / src / gallium / auxiliary / draw / draw_vertex.h

diff --git a/src/gallium/auxiliary/draw/draw_vertex.h b/src/gallium/auxiliary/draw/draw_vertex.h
index 16c65c43175b00f07b6468be6fb1cc425214f34b..ca272371267a957aab5f23dbd11892ca03c1515a 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_vertex.h
+++ b/src/gallium/auxiliary/draw/draw_vertex.h
@@ -39,7 +39,9 @@
 #define DRAW_VERTEX_H
 
 
+#include "pipe/p_compiler.h"
 #include "pipe/p_state.h"
+#include "util/u_debug.h"
 
 
 /**
@@ -52,7 +54,8 @@ enum attrib_emit {
    EMIT_2F,
    EMIT_3F,
    EMIT_4F,
-   EMIT_4UB  /**< XXX may need variations for RGBA vs BGRA, etc */
+   EMIT_4UB, /**< is RGBA like the rest */
+   EMIT_4UB_BGRA
 };
 
 
@@ -75,12 +78,40 @@ struct vertex_info
 {
    uint num_attribs;
    uint hwfmt[4];      /**< hardware format info for this format */
-   enum interp_mode interp_mode[PIPE_MAX_SHADER_INPUTS];
-   enum attrib_emit emit[PIPE_MAX_SHADER_INPUTS];   /**< EMIT_x */
-   uint src_index[PIPE_MAX_SHADER_INPUTS]; /**< map to post-xform attribs */
    uint size;          /**< total vertex size in dwords */
+   
+   /* Keep this small and at the end of the struct to allow quick
+    * memcmp() comparisons.
+    */
+   struct {
+      unsigned interp_mode:4;      /**< INTERP_x */
+      unsigned emit:4;             /**< EMIT_x */
+      unsigned src_index:8;          /**< map to post-xform attribs */
+   } attrib[PIPE_MAX_SHADER_INPUTS];
 };
 
+static INLINE size_t
+draw_vinfo_size( const struct vertex_info *a )
+{
+   return offsetof(const struct vertex_info, attrib[a->num_attribs]);
+}
+
+static INLINE int
+draw_vinfo_compare( const struct vertex_info *a,
+                    const struct vertex_info *b )
+{
+   size_t sizea = draw_vinfo_size( a );
+   return memcmp( a, b, sizea );
+}
+
+static INLINE void
+draw_vinfo_copy( struct vertex_info *dst,
+                 const struct vertex_info *src )
+{
+   size_t size = draw_vinfo_size( src );
+   memcpy( dst, src, size );
+}
+
 
 
 /**
@@ -91,14 +122,15 @@ struct vertex_info
  */
 static INLINE uint
 draw_emit_vertex_attr(struct vertex_info *vinfo,
-                      enum attrib_emit emit, enum interp_mode interp,
+                      enum attrib_emit emit, 
+                      enum interp_mode interp, /* only used by softpipe??? */
                       uint src_index)
 {
    const uint n = vinfo->num_attribs;
    assert(n < PIPE_MAX_SHADER_INPUTS);
-   vinfo->emit[n] = emit;
-   vinfo->interp_mode[n] = interp;
-   vinfo->src_index[n] = src_index;
+   vinfo->attrib[n].emit = emit;
+   vinfo->attrib[n].interp_mode = interp;
+   vinfo->attrib[n].src_index = src_index;
    vinfo->num_attribs++;
    return n;
 }
@@ -110,9 +142,11 @@ void draw_dump_emitted_vertex(const struct vertex_info *vinfo,
                               const uint8_t *data);
 
 
-static INLINE unsigned draw_translate_vinfo_format(unsigned format )
+static INLINE unsigned draw_translate_vinfo_format(enum attrib_emit emit)
 {
-   switch (format) {
+   switch (emit) {
+   case EMIT_OMIT:
+      return PIPE_FORMAT_NONE;
    case EMIT_1F:
    case EMIT_1F_PSIZE:
       return PIPE_FORMAT_R32_FLOAT;
@@ -124,10 +158,36 @@ static INLINE unsigned draw_translate_vinfo_format(unsigned format )
       return PIPE_FORMAT_R32G32B32A32_FLOAT;
    case EMIT_4UB:
       return PIPE_FORMAT_R8G8B8A8_UNORM;
+   case EMIT_4UB_BGRA:
+      return PIPE_FORMAT_B8G8R8A8_UNORM;
    default:
+      assert(!"unexpected format");
       return PIPE_FORMAT_NONE;
    }
 }
 
+static INLINE unsigned draw_translate_vinfo_size(enum attrib_emit emit)
+{
+   switch (emit) {
+   case EMIT_OMIT:
+      return 0;
+   case EMIT_1F:
+   case EMIT_1F_PSIZE:
+      return 1 * sizeof(float);
+   case EMIT_2F:
+      return 2 * sizeof(float);
+   case EMIT_3F:
+      return 3 * sizeof(float);
+   case EMIT_4F:
+      return 4 * sizeof(float);
+   case EMIT_4UB:
+      return 4 * sizeof(unsigned char);
+   case EMIT_4UB_BGRA:
+      return 4 * sizeof(unsigned char);
+   default:
+      assert(!"unexpected format");
+      return 0;
+   }
+}
 
 #endif /* DRAW_VERTEX_H */