translate_generic: factor out common code between linear and indexed
[mesa.git] / src / gallium / auxiliary / translate / translate_generic.c
index 8d39b64c6c1106dfaae69435a627196fcad0fc07..828b76dc77fee4da3baa52b0b99d5cf1d89c5f5a 100644 (file)
   */
 
 #include "util/u_memory.h"
+#include "util/u_format.h"
+#include "util/u_math.h"
 #include "pipe/p_state.h"
 #include "translate.h"
 
 
 #define DRAW_DBG 0
 
-typedef void (*fetch_func)(const void *ptr, float *attrib);
+typedef void (*fetch_func)(float *dst,
+                           const uint8_t *src,
+                           unsigned i, unsigned j);
 typedef void (*emit_func)(const float *attrib, void *ptr);
 
 
@@ -46,15 +50,27 @@ struct translate_generic {
    struct translate translate;
 
    struct {
+      enum translate_element_type type;
+
       fetch_func fetch;
       unsigned buffer;
       unsigned input_offset;
+      unsigned instance_divisor;
 
       emit_func emit;
       unsigned output_offset;
       
-      char *input_ptr;
+      const uint8_t *input_ptr;
       unsigned input_stride;
+      unsigned max_index;
+
+      /* this value is set to -1 if this is a normal element with output_format != input_format:
+       * in this case, u_format is used to do a full conversion
+       *
+       * this value is set to the format size in bytes if output_format == input_format or for 32-bit instance ids:
+       * in this case, memcpy is used to copy this amount of bytes
+       */
+      int copy_size;
 
    } attrib[PIPE_MAX_ATTRIBS];
 
@@ -74,22 +90,7 @@ static struct translate_generic *translate_generic( struct translate *translate
  * This is probably needed/dupliocated elsewhere, eg format
  * conversion, texture sampling etc.
  */
-#define ATTRIB( NAME, SZ, TYPE, FROM, TO )             \
-static void                                            \
-fetch_##NAME(const void *ptr, float *attrib)           \
-{                                                      \
-   const float defaults[4] = { 0.0f,0.0f,0.0f,1.0f };  \
-   unsigned i;                                         \
-                                                       \
-   for (i = 0; i < SZ; i++) {                          \
-      attrib[i] = FROM(i);                             \
-   }                                                   \
-                                                       \
-   for (; i < 4; i++) {                                        \
-      attrib[i] = defaults[i];                         \
-   }                                                   \
-}                                                      \
-                                                       \
+#define ATTRIB( NAME, SZ, TYPE, TO )                   \
 static void                                            \
 emit_##NAME(const float *attrib, void *ptr)            \
 {  \
@@ -102,27 +103,6 @@ emit_##NAME(const float *attrib, void *ptr)                \
 }
 
 
-#define FROM_64_FLOAT(i)   ((float) ((double *) ptr)[i])
-#define FROM_32_FLOAT(i)   (((float *) ptr)[i])
-
-#define FROM_8_USCALED(i)  ((float) ((unsigned char *) ptr)[i])
-#define FROM_16_USCALED(i) ((float) ((unsigned short *) ptr)[i])
-#define FROM_32_USCALED(i) ((float) ((unsigned int *) ptr)[i])
-
-#define FROM_8_SSCALED(i)  ((float) ((char *) ptr)[i])
-#define FROM_16_SSCALED(i) ((float) ((short *) ptr)[i])
-#define FROM_32_SSCALED(i) ((float) ((int *) ptr)[i])
-
-#define FROM_8_UNORM(i)    ((float) ((unsigned char *) ptr)[i] / 255.0f)
-#define FROM_16_UNORM(i)   ((float) ((unsigned short *) ptr)[i] / 65535.0f)
-#define FROM_32_UNORM(i)   ((float) ((unsigned int *) ptr)[i] / 4294967295.0f)
-
-#define FROM_8_SNORM(i)    ((float) ((char *) ptr)[i] / 127.0f)
-#define FROM_16_SNORM(i)   ((float) ((short *) ptr)[i] / 32767.0f)
-#define FROM_32_SNORM(i)   ((float) ((int *) ptr)[i] / 2147483647.0f)
-
-#define FROM_32_FIXED(i)   (((int *) ptr)[i] / 65536.0f)
-
 #define TO_64_FLOAT(x)   ((double) x)
 #define TO_32_FLOAT(x)   (x)
 
@@ -145,94 +125,84 @@ emit_##NAME(const float *attrib, void *ptr)               \
 #define TO_32_FIXED(x)   ((int) (x * 65536.0f))
 
 
-
-ATTRIB( R64G64B64A64_FLOAT,   4, double, FROM_64_FLOAT, TO_64_FLOAT )
-ATTRIB( R64G64B64_FLOAT,      3, double, FROM_64_FLOAT, TO_64_FLOAT )
-ATTRIB( R64G64_FLOAT,         2, double, FROM_64_FLOAT, TO_64_FLOAT )
-ATTRIB( R64_FLOAT,            1, double, FROM_64_FLOAT, TO_64_FLOAT )
-
-ATTRIB( R32G32B32A32_FLOAT,   4, float, FROM_32_FLOAT, TO_32_FLOAT )
-ATTRIB( R32G32B32_FLOAT,      3, float, FROM_32_FLOAT, TO_32_FLOAT )
-ATTRIB( R32G32_FLOAT,         2, float, FROM_32_FLOAT, TO_32_FLOAT )
-ATTRIB( R32_FLOAT,            1, float, FROM_32_FLOAT, TO_32_FLOAT )
-
-ATTRIB( R32G32B32A32_USCALED, 4, unsigned, FROM_32_USCALED, TO_32_USCALED )
-ATTRIB( R32G32B32_USCALED,    3, unsigned, FROM_32_USCALED, TO_32_USCALED )
-ATTRIB( R32G32_USCALED,       2, unsigned, FROM_32_USCALED, TO_32_USCALED )
-ATTRIB( R32_USCALED,          1, unsigned, FROM_32_USCALED, TO_32_USCALED )
-
-ATTRIB( R32G32B32A32_SSCALED, 4, int, FROM_32_SSCALED, TO_32_SSCALED )
-ATTRIB( R32G32B32_SSCALED,    3, int, FROM_32_SSCALED, TO_32_SSCALED )
-ATTRIB( R32G32_SSCALED,       2, int, FROM_32_SSCALED, TO_32_SSCALED )
-ATTRIB( R32_SSCALED,          1, int, FROM_32_SSCALED, TO_32_SSCALED )
-
-ATTRIB( R32G32B32A32_UNORM, 4, unsigned, FROM_32_UNORM, TO_32_UNORM )
-ATTRIB( R32G32B32_UNORM,    3, unsigned, FROM_32_UNORM, TO_32_UNORM )
-ATTRIB( R32G32_UNORM,       2, unsigned, FROM_32_UNORM, TO_32_UNORM )
-ATTRIB( R32_UNORM,          1, unsigned, FROM_32_UNORM, TO_32_UNORM )
-
-ATTRIB( R32G32B32A32_SNORM, 4, int, FROM_32_SNORM, TO_32_SNORM )
-ATTRIB( R32G32B32_SNORM,    3, int, FROM_32_SNORM, TO_32_SNORM )
-ATTRIB( R32G32_SNORM,       2, int, FROM_32_SNORM, TO_32_SNORM )
-ATTRIB( R32_SNORM,          1, int, FROM_32_SNORM, TO_32_SNORM )
-
-ATTRIB( R16G16B16A16_USCALED, 4, ushort, FROM_16_USCALED, TO_16_USCALED )
-ATTRIB( R16G16B16_USCALED,    3, ushort, FROM_16_USCALED, TO_16_USCALED )
-ATTRIB( R16G16_USCALED,       2, ushort, FROM_16_USCALED, TO_16_USCALED )
-ATTRIB( R16_USCALED,          1, ushort, FROM_16_USCALED, TO_16_USCALED )
-
-ATTRIB( R16G16B16A16_SSCALED, 4, short, FROM_16_SSCALED, TO_16_SSCALED )
-ATTRIB( R16G16B16_SSCALED,    3, short, FROM_16_SSCALED, TO_16_SSCALED )
-ATTRIB( R16G16_SSCALED,       2, short, FROM_16_SSCALED, TO_16_SSCALED )
-ATTRIB( R16_SSCALED,          1, short, FROM_16_SSCALED, TO_16_SSCALED )
-
-ATTRIB( R16G16B16A16_UNORM, 4, ushort, FROM_16_UNORM, TO_16_UNORM )
-ATTRIB( R16G16B16_UNORM,    3, ushort, FROM_16_UNORM, TO_16_UNORM )
-ATTRIB( R16G16_UNORM,       2, ushort, FROM_16_UNORM, TO_16_UNORM )
-ATTRIB( R16_UNORM,          1, ushort, FROM_16_UNORM, TO_16_UNORM )
-
-ATTRIB( R16G16B16A16_SNORM, 4, short, FROM_16_SNORM, TO_16_SNORM )
-ATTRIB( R16G16B16_SNORM,    3, short, FROM_16_SNORM, TO_16_SNORM )
-ATTRIB( R16G16_SNORM,       2, short, FROM_16_SNORM, TO_16_SNORM )
-ATTRIB( R16_SNORM,          1, short, FROM_16_SNORM, TO_16_SNORM )
-
-ATTRIB( R8G8B8A8_USCALED,   4, ubyte, FROM_8_USCALED, TO_8_USCALED )
-ATTRIB( R8G8B8_USCALED,     3, ubyte, FROM_8_USCALED, TO_8_USCALED )
-ATTRIB( R8G8_USCALED,       2, ubyte, FROM_8_USCALED, TO_8_USCALED )
-ATTRIB( R8_USCALED,         1, ubyte, FROM_8_USCALED, TO_8_USCALED )
-
-ATTRIB( R8G8B8A8_SSCALED,  4, char, FROM_8_SSCALED, TO_8_SSCALED )
-ATTRIB( R8G8B8_SSCALED,    3, char, FROM_8_SSCALED, TO_8_SSCALED )
-ATTRIB( R8G8_SSCALED,      2, char, FROM_8_SSCALED, TO_8_SSCALED )
-ATTRIB( R8_SSCALED,        1, char, FROM_8_SSCALED, TO_8_SSCALED )
-
-ATTRIB( R8G8B8A8_UNORM,  4, ubyte, FROM_8_UNORM, TO_8_UNORM )
-ATTRIB( R8G8B8_UNORM,    3, ubyte, FROM_8_UNORM, TO_8_UNORM )
-ATTRIB( R8G8_UNORM,      2, ubyte, FROM_8_UNORM, TO_8_UNORM )
-ATTRIB( R8_UNORM,        1, ubyte, FROM_8_UNORM, TO_8_UNORM )
-
-ATTRIB( R8G8B8A8_SNORM,  4, char, FROM_8_SNORM, TO_8_SNORM )
-ATTRIB( R8G8B8_SNORM,    3, char, FROM_8_SNORM, TO_8_SNORM )
-ATTRIB( R8G8_SNORM,      2, char, FROM_8_SNORM, TO_8_SNORM )
-ATTRIB( R8_SNORM,        1, char, FROM_8_SNORM, TO_8_SNORM )
-
-ATTRIB( A8R8G8B8_UNORM,       4, ubyte, FROM_8_UNORM, TO_8_UNORM )
-//ATTRIB( R8G8B8A8_UNORM,       4, ubyte, FROM_8_UNORM, TO_8_UNORM )
-
-ATTRIB( R32G32B32A32_FIXED,   4, int, FROM_32_FIXED, TO_32_FIXED )
-ATTRIB( R32G32B32_FIXED,      3, int, FROM_32_FIXED, TO_32_FIXED )
-ATTRIB( R32G32_FIXED,         2, int, FROM_32_FIXED, TO_32_FIXED )
-ATTRIB( R32_FIXED,            1, int, FROM_32_FIXED, TO_32_FIXED )
-
-
+ATTRIB( R64G64B64A64_FLOAT,   4, double, TO_64_FLOAT )
+ATTRIB( R64G64B64_FLOAT,      3, double, TO_64_FLOAT )
+ATTRIB( R64G64_FLOAT,         2, double, TO_64_FLOAT )
+ATTRIB( R64_FLOAT,            1, double, TO_64_FLOAT )
+
+ATTRIB( R32G32B32A32_FLOAT,   4, float, TO_32_FLOAT )
+ATTRIB( R32G32B32_FLOAT,      3, float, TO_32_FLOAT )
+ATTRIB( R32G32_FLOAT,         2, float, TO_32_FLOAT )
+ATTRIB( R32_FLOAT,            1, float, TO_32_FLOAT )
+
+ATTRIB( R32G32B32A32_USCALED, 4, unsigned, TO_32_USCALED )
+ATTRIB( R32G32B32_USCALED,    3, unsigned, TO_32_USCALED )
+ATTRIB( R32G32_USCALED,       2, unsigned, TO_32_USCALED )
+ATTRIB( R32_USCALED,          1, unsigned, TO_32_USCALED )
+
+ATTRIB( R32G32B32A32_SSCALED, 4, int, TO_32_SSCALED )
+ATTRIB( R32G32B32_SSCALED,    3, int, TO_32_SSCALED )
+ATTRIB( R32G32_SSCALED,       2, int, TO_32_SSCALED )
+ATTRIB( R32_SSCALED,          1, int, TO_32_SSCALED )
+
+ATTRIB( R32G32B32A32_UNORM, 4, unsigned, TO_32_UNORM )
+ATTRIB( R32G32B32_UNORM,    3, unsigned, TO_32_UNORM )
+ATTRIB( R32G32_UNORM,       2, unsigned, TO_32_UNORM )
+ATTRIB( R32_UNORM,          1, unsigned, TO_32_UNORM )
+
+ATTRIB( R32G32B32A32_SNORM, 4, int, TO_32_SNORM )
+ATTRIB( R32G32B32_SNORM,    3, int, TO_32_SNORM )
+ATTRIB( R32G32_SNORM,       2, int, TO_32_SNORM )
+ATTRIB( R32_SNORM,          1, int, TO_32_SNORM )
+
+ATTRIB( R16G16B16A16_USCALED, 4, ushort, TO_16_USCALED )
+ATTRIB( R16G16B16_USCALED,    3, ushort, TO_16_USCALED )
+ATTRIB( R16G16_USCALED,       2, ushort, TO_16_USCALED )
+ATTRIB( R16_USCALED,          1, ushort, TO_16_USCALED )
+
+ATTRIB( R16G16B16A16_SSCALED, 4, short, TO_16_SSCALED )
+ATTRIB( R16G16B16_SSCALED,    3, short, TO_16_SSCALED )
+ATTRIB( R16G16_SSCALED,       2, short, TO_16_SSCALED )
+ATTRIB( R16_SSCALED,          1, short, TO_16_SSCALED )
+
+ATTRIB( R16G16B16A16_UNORM, 4, ushort, TO_16_UNORM )
+ATTRIB( R16G16B16_UNORM,    3, ushort, TO_16_UNORM )
+ATTRIB( R16G16_UNORM,       2, ushort, TO_16_UNORM )
+ATTRIB( R16_UNORM,          1, ushort, TO_16_UNORM )
+
+ATTRIB( R16G16B16A16_SNORM, 4, short, TO_16_SNORM )
+ATTRIB( R16G16B16_SNORM,    3, short, TO_16_SNORM )
+ATTRIB( R16G16_SNORM,       2, short, TO_16_SNORM )
+ATTRIB( R16_SNORM,          1, short, TO_16_SNORM )
+
+ATTRIB( R8G8B8A8_USCALED,   4, ubyte, TO_8_USCALED )
+ATTRIB( R8G8B8_USCALED,     3, ubyte, TO_8_USCALED )
+ATTRIB( R8G8_USCALED,       2, ubyte, TO_8_USCALED )
+ATTRIB( R8_USCALED,         1, ubyte, TO_8_USCALED )
+
+ATTRIB( R8G8B8A8_SSCALED,  4, char, TO_8_SSCALED )
+ATTRIB( R8G8B8_SSCALED,    3, char, TO_8_SSCALED )
+ATTRIB( R8G8_SSCALED,      2, char, TO_8_SSCALED )
+ATTRIB( R8_SSCALED,        1, char, TO_8_SSCALED )
+
+ATTRIB( R8G8B8A8_UNORM,  4, ubyte, TO_8_UNORM )
+ATTRIB( R8G8B8_UNORM,    3, ubyte, TO_8_UNORM )
+ATTRIB( R8G8_UNORM,      2, ubyte, TO_8_UNORM )
+ATTRIB( R8_UNORM,        1, ubyte, TO_8_UNORM )
+
+ATTRIB( R8G8B8A8_SNORM,  4, char, TO_8_SNORM )
+ATTRIB( R8G8B8_SNORM,    3, char, TO_8_SNORM )
+ATTRIB( R8G8_SNORM,      2, char, TO_8_SNORM )
+ATTRIB( R8_SNORM,        1, char, TO_8_SNORM )
 
 static void
-fetch_B8G8R8A8_UNORM(const void *ptr, float *attrib)
+emit_A8R8G8B8_UNORM( const float *attrib, void *ptr)
 {
-   attrib[2] = FROM_8_UNORM(0);
-   attrib[1] = FROM_8_UNORM(1);
-   attrib[0] = FROM_8_UNORM(2);
-   attrib[3] = FROM_8_UNORM(3);
+   ubyte *out = (ubyte *)ptr;
+   out[0] = TO_8_UNORM(attrib[3]);
+   out[1] = TO_8_UNORM(attrib[0]);
+   out[2] = TO_8_UNORM(attrib[1]);
+   out[3] = TO_8_UNORM(attrib[2]);
 }
 
 static void
@@ -245,182 +215,14 @@ emit_B8G8R8A8_UNORM( const float *attrib, void *ptr)
    out[3] = TO_8_UNORM(attrib[3]);
 }
 
-static void 
-fetch_NULL( const void *ptr, float *attrib )
-{
-   attrib[0] = 0;
-   attrib[1] = 0;
-   attrib[2] = 0;
-   attrib[3] = 1;
-}
-
 static void 
 emit_NULL( const float *attrib, void *ptr )
 {
    /* do nothing is the only sensible option */
 }
 
-static fetch_func get_fetch_func( enum pipe_format format )
-{
-   switch (format) {
-   case PIPE_FORMAT_R64_FLOAT:
-      return &fetch_R64_FLOAT;
-   case PIPE_FORMAT_R64G64_FLOAT:
-      return &fetch_R64G64_FLOAT;
-   case PIPE_FORMAT_R64G64B64_FLOAT:
-      return &fetch_R64G64B64_FLOAT;
-   case PIPE_FORMAT_R64G64B64A64_FLOAT:
-      return &fetch_R64G64B64A64_FLOAT;
-
-   case PIPE_FORMAT_R32_FLOAT:
-      return &fetch_R32_FLOAT;
-   case PIPE_FORMAT_R32G32_FLOAT:
-      return &fetch_R32G32_FLOAT;
-   case PIPE_FORMAT_R32G32B32_FLOAT:
-      return &fetch_R32G32B32_FLOAT;
-   case PIPE_FORMAT_R32G32B32A32_FLOAT:
-      return &fetch_R32G32B32A32_FLOAT;
-
-   case PIPE_FORMAT_R32_UNORM:
-      return &fetch_R32_UNORM;
-   case PIPE_FORMAT_R32G32_UNORM:
-      return &fetch_R32G32_UNORM;
-   case PIPE_FORMAT_R32G32B32_UNORM:
-      return &fetch_R32G32B32_UNORM;
-   case PIPE_FORMAT_R32G32B32A32_UNORM:
-      return &fetch_R32G32B32A32_UNORM;
-
-   case PIPE_FORMAT_R32_USCALED:
-      return &fetch_R32_USCALED;
-   case PIPE_FORMAT_R32G32_USCALED:
-      return &fetch_R32G32_USCALED;
-   case PIPE_FORMAT_R32G32B32_USCALED:
-      return &fetch_R32G32B32_USCALED;
-   case PIPE_FORMAT_R32G32B32A32_USCALED:
-      return &fetch_R32G32B32A32_USCALED;
-
-   case PIPE_FORMAT_R32_SNORM:
-      return &fetch_R32_SNORM;
-   case PIPE_FORMAT_R32G32_SNORM:
-      return &fetch_R32G32_SNORM;
-   case PIPE_FORMAT_R32G32B32_SNORM:
-      return &fetch_R32G32B32_SNORM;
-   case PIPE_FORMAT_R32G32B32A32_SNORM:
-      return &fetch_R32G32B32A32_SNORM;
-
-   case PIPE_FORMAT_R32_SSCALED:
-      return &fetch_R32_SSCALED;
-   case PIPE_FORMAT_R32G32_SSCALED:
-      return &fetch_R32G32_SSCALED;
-   case PIPE_FORMAT_R32G32B32_SSCALED:
-      return &fetch_R32G32B32_SSCALED;
-   case PIPE_FORMAT_R32G32B32A32_SSCALED:
-      return &fetch_R32G32B32A32_SSCALED;
-
-   case PIPE_FORMAT_R16_UNORM:
-      return &fetch_R16_UNORM;
-   case PIPE_FORMAT_R16G16_UNORM:
-      return &fetch_R16G16_UNORM;
-   case PIPE_FORMAT_R16G16B16_UNORM:
-      return &fetch_R16G16B16_UNORM;
-   case PIPE_FORMAT_R16G16B16A16_UNORM:
-      return &fetch_R16G16B16A16_UNORM;
-
-   case PIPE_FORMAT_R16_USCALED:
-      return &fetch_R16_USCALED;
-   case PIPE_FORMAT_R16G16_USCALED:
-      return &fetch_R16G16_USCALED;
-   case PIPE_FORMAT_R16G16B16_USCALED:
-      return &fetch_R16G16B16_USCALED;
-   case PIPE_FORMAT_R16G16B16A16_USCALED:
-      return &fetch_R16G16B16A16_USCALED;
-
-   case PIPE_FORMAT_R16_SNORM:
-      return &fetch_R16_SNORM;
-   case PIPE_FORMAT_R16G16_SNORM:
-      return &fetch_R16G16_SNORM;
-   case PIPE_FORMAT_R16G16B16_SNORM:
-      return &fetch_R16G16B16_SNORM;
-   case PIPE_FORMAT_R16G16B16A16_SNORM:
-      return &fetch_R16G16B16A16_SNORM;
-
-   case PIPE_FORMAT_R16_SSCALED:
-      return &fetch_R16_SSCALED;
-   case PIPE_FORMAT_R16G16_SSCALED:
-      return &fetch_R16G16_SSCALED;
-   case PIPE_FORMAT_R16G16B16_SSCALED:
-      return &fetch_R16G16B16_SSCALED;
-   case PIPE_FORMAT_R16G16B16A16_SSCALED:
-      return &fetch_R16G16B16A16_SSCALED;
-
-   case PIPE_FORMAT_R8_UNORM:
-      return &fetch_R8_UNORM;
-   case PIPE_FORMAT_R8G8_UNORM:
-      return &fetch_R8G8_UNORM;
-   case PIPE_FORMAT_R8G8B8_UNORM:
-      return &fetch_R8G8B8_UNORM;
-   case PIPE_FORMAT_R8G8B8A8_UNORM:
-      return &fetch_R8G8B8A8_UNORM;
-
-   case PIPE_FORMAT_R8_USCALED:
-      return &fetch_R8_USCALED;
-   case PIPE_FORMAT_R8G8_USCALED:
-      return &fetch_R8G8_USCALED;
-   case PIPE_FORMAT_R8G8B8_USCALED:
-      return &fetch_R8G8B8_USCALED;
-   case PIPE_FORMAT_R8G8B8A8_USCALED:
-      return &fetch_R8G8B8A8_USCALED;
-
-   case PIPE_FORMAT_R8_SNORM:
-      return &fetch_R8_SNORM;
-   case PIPE_FORMAT_R8G8_SNORM:
-      return &fetch_R8G8_SNORM;
-   case PIPE_FORMAT_R8G8B8_SNORM:
-      return &fetch_R8G8B8_SNORM;
-   case PIPE_FORMAT_R8G8B8A8_SNORM:
-      return &fetch_R8G8B8A8_SNORM;
-
-   case PIPE_FORMAT_R8_SSCALED:
-      return &fetch_R8_SSCALED;
-   case PIPE_FORMAT_R8G8_SSCALED:
-      return &fetch_R8G8_SSCALED;
-   case PIPE_FORMAT_R8G8B8_SSCALED:
-      return &fetch_R8G8B8_SSCALED;
-   case PIPE_FORMAT_R8G8B8A8_SSCALED:
-      return &fetch_R8G8B8A8_SSCALED;
-
-   case PIPE_FORMAT_A8R8G8B8_UNORM:
-      return &fetch_A8R8G8B8_UNORM;
-
-   case PIPE_FORMAT_B8G8R8A8_UNORM:
-      return &fetch_B8G8R8A8_UNORM;
-
-   case PIPE_FORMAT_R32_FIXED:
-      return &fetch_R32_FIXED;
-   case PIPE_FORMAT_R32G32_FIXED:
-      return &fetch_R32G32_FIXED;
-   case PIPE_FORMAT_R32G32B32_FIXED:
-      return &fetch_R32G32B32_FIXED;
-   case PIPE_FORMAT_R32G32B32A32_FIXED:
-      return &fetch_R32G32B32A32_FIXED;
-
-   default:
-      assert(0); 
-      return &fetch_NULL;
-   }
-}
-
-
-
-
 static emit_func get_emit_func( enum pipe_format format )
 {
-   /* silence warnings */
-   (void) emit_R32G32B32A32_FIXED;
-   (void) emit_R32G32B32_FIXED;
-   (void) emit_R32G32_FIXED;
-   (void) emit_R32_FIXED;
-
    switch (format) {
    case PIPE_FORMAT_R64_FLOAT:
       return &emit_R64_FLOAT;
@@ -548,19 +350,77 @@ static emit_func get_emit_func( enum pipe_format format )
    case PIPE_FORMAT_R8G8B8A8_SSCALED:
       return &emit_R8G8B8A8_SSCALED;
 
-   case PIPE_FORMAT_A8R8G8B8_UNORM:
-      return &emit_A8R8G8B8_UNORM;
-
    case PIPE_FORMAT_B8G8R8A8_UNORM:
       return &emit_B8G8R8A8_UNORM;
 
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
+      return &emit_A8R8G8B8_UNORM;
+
    default:
       assert(0); 
       return &emit_NULL;
    }
 }
 
+static ALWAYS_INLINE void PIPE_CDECL generic_run_one( struct translate_generic *tg,
+                                         unsigned elt,
+                                         unsigned instance_id,
+                                         void *vert )
+{
+   unsigned nr_attrs = tg->nr_attrib;
+   unsigned attr;
 
+   for (attr = 0; attr < nr_attrs; attr++) {
+      float data[4];
+      char *dst = vert + tg->attrib[attr].output_offset;
+
+      if (tg->attrib[attr].type == TRANSLATE_ELEMENT_NORMAL) {
+         const uint8_t *src;
+         unsigned index;
+         int copy_size;
+
+         if (tg->attrib[attr].instance_divisor) {
+            index = instance_id / tg->attrib[attr].instance_divisor;
+         }
+         else {
+            index = elt;
+         }
+
+         /* clamp to void going out of bounds */
+         index = MIN2(index, tg->attrib[attr].max_index);
+
+         src = tg->attrib[attr].input_ptr +
+               tg->attrib[attr].input_stride * index;
+
+         copy_size = tg->attrib[attr].copy_size;
+         if(likely(copy_size >= 0))
+            memcpy(dst, src, copy_size);
+         else
+         {
+            tg->attrib[attr].fetch( data, src, 0, 0 );
+
+            if (0)
+               debug_printf("Fetch linear attr %d  from %p  stride %d  index %d: "
+                         " %f, %f, %f, %f \n",
+                         attr,
+                         tg->attrib[attr].input_ptr,
+                         tg->attrib[attr].input_stride,
+                         index,
+                         data[0], data[1],data[2], data[3]);
+
+            tg->attrib[attr].emit( data, dst );
+         }
+      } else {
+         if(likely(tg->attrib[attr].copy_size >= 0))
+            memcpy(data, &instance_id, 4);
+         else
+         {
+            data[0] = (float)instance_id;
+            tg->attrib[attr].emit( data, dst );
+         }
+      }
+   }
+}
 
 /**
  * Fetch vertex attributes for 'count' vertices.
@@ -568,75 +428,31 @@ static emit_func get_emit_func( enum pipe_format format )
 static void PIPE_CDECL generic_run_elts( struct translate *translate,
                                          const unsigned *elts,
                                          unsigned count,
+                                         unsigned instance_id,
                                          void *output_buffer )
 {
    struct translate_generic *tg = translate_generic(translate);
    char *vert = output_buffer;
-   unsigned nr_attrs = tg->nr_attrib;
-   unsigned attr;
    unsigned i;
 
-   /* loop over vertex attributes (vertex shader inputs)
-    */
    for (i = 0; i < count; i++) {
-      unsigned elt = *elts++;
-
-      for (attr = 0; attr < nr_attrs; attr++) {
-        float data[4];
-
-        const char *src = (tg->attrib[attr].input_ptr + 
-                           tg->attrib[attr].input_stride * elt);
-
-        char *dst = (vert + 
-                     tg->attrib[attr].output_offset);
-
-        tg->attrib[attr].fetch( src, data );
-
-         if (0) debug_printf("vert %d/%d attr %d: %f %f %f %f\n",
-                             i, elt, attr, data[0], data[1], data[2], data[3]);
-
-        tg->attrib[attr].emit( data, dst );
-      }
-      
+      generic_run_one(tg, *elts++, instance_id, vert);
       vert += tg->translate.key.output_stride;
    }
 }
 
-
-
 static void PIPE_CDECL generic_run( struct translate *translate,
                                     unsigned start,
                                     unsigned count,
+                                    unsigned instance_id,
                                     void *output_buffer )
 {
    struct translate_generic *tg = translate_generic(translate);
    char *vert = output_buffer;
-   unsigned nr_attrs = tg->nr_attrib;
-   unsigned attr;
    unsigned i;
 
-   /* loop over vertex attributes (vertex shader inputs)
-    */
    for (i = 0; i < count; i++) {
-      unsigned elt = start + i;
-
-      for (attr = 0; attr < nr_attrs; attr++) {
-        float data[4];
-
-        const char *src = (tg->attrib[attr].input_ptr + 
-                           tg->attrib[attr].input_stride * elt);
-
-        char *dst = (vert + 
-                     tg->attrib[attr].output_offset);
-
-        tg->attrib[attr].fetch( src, data );
-
-         if (0) debug_printf("vert %d attr %d: %f %f %f %f\n",
-                             i, attr, data[0], data[1], data[2], data[3]);
-
-        tg->attrib[attr].emit( data, dst );
-      }
-      
+      generic_run_one(tg, start + i, instance_id, vert);
       vert += tg->translate.key.output_stride;
    }
 }
@@ -646,16 +462,18 @@ static void PIPE_CDECL generic_run( struct translate *translate,
 static void generic_set_buffer( struct translate *translate,
                                unsigned buf,
                                const void *ptr,
-                               unsigned stride )
+                               unsigned stride,
+                               unsigned max_index )
 {
    struct translate_generic *tg = translate_generic(translate);
    unsigned i;
 
    for (i = 0; i < tg->nr_attrib; i++) {
       if (tg->attrib[i].buffer == buf) {
-        tg->attrib[i].input_ptr = ((char *)ptr +
+        tg->attrib[i].input_ptr = ((const uint8_t *)ptr +
                                    tg->attrib[i].input_offset);
         tg->attrib[i].input_stride = stride;
+         tg->attrib[i].max_index = max_index;
       }
    }
 }
@@ -683,14 +501,41 @@ struct translate *translate_generic_create( const struct translate_key *key )
    tg->translate.run = generic_run;
 
    for (i = 0; i < key->nr_elements; i++) {
+      const struct util_format_description *format_desc =
+            util_format_description(key->element[i].input_format);
+
+      assert(format_desc);
+      assert(format_desc->fetch_rgba_float);
+
+      tg->attrib[i].type = key->element[i].type;
 
-      tg->attrib[i].fetch = get_fetch_func(key->element[i].input_format);
+      tg->attrib[i].fetch = format_desc->fetch_rgba_float;
       tg->attrib[i].buffer = key->element[i].input_buffer;
       tg->attrib[i].input_offset = key->element[i].input_offset;
+      tg->attrib[i].instance_divisor = key->element[i].instance_divisor;
 
-      tg->attrib[i].emit = get_emit_func(key->element[i].output_format);
       tg->attrib[i].output_offset = key->element[i].output_offset;
 
+      tg->attrib[i].copy_size = -1;
+      if (tg->attrib[i].type == TRANSLATE_ELEMENT_INSTANCE_ID)
+      {
+            if(key->element[i].output_format == PIPE_FORMAT_R32_USCALED
+                  || key->element[i].output_format == PIPE_FORMAT_R32_SSCALED)
+               tg->attrib[i].copy_size = 4;
+      }
+      else
+      {
+         if(key->element[i].input_format == key->element[i].output_format
+               && format_desc->block.width == 1
+               && format_desc->block.height == 1
+               && !(format_desc->block.bits & 7))
+            tg->attrib[i].copy_size = format_desc->block.bits >> 3;
+      }
+
+      if(tg->attrib[i].copy_size < 0)
+             tg->attrib[i].emit = get_emit_func(key->element[i].output_format);
+      else
+             tg->attrib[i].emit  = NULL;
    }
 
    tg->nr_attrib = key->nr_elements;
@@ -698,3 +543,83 @@ struct translate *translate_generic_create( const struct translate_key *key )
 
    return &tg->translate;
 }
+
+boolean translate_generic_is_output_format_supported(enum pipe_format format)
+{
+   switch(format)
+   {
+   case PIPE_FORMAT_R64G64B64A64_FLOAT: return TRUE;
+   case PIPE_FORMAT_R64G64B64_FLOAT: return TRUE;
+   case PIPE_FORMAT_R64G64_FLOAT: return TRUE;
+   case PIPE_FORMAT_R64_FLOAT: return TRUE;
+
+   case PIPE_FORMAT_R32G32B32A32_FLOAT: return TRUE;
+   case PIPE_FORMAT_R32G32B32_FLOAT: return TRUE;
+   case PIPE_FORMAT_R32G32_FLOAT: return TRUE;
+   case PIPE_FORMAT_R32_FLOAT: return TRUE;
+
+   case PIPE_FORMAT_R32G32B32A32_USCALED: return TRUE;
+   case PIPE_FORMAT_R32G32B32_USCALED: return TRUE;
+   case PIPE_FORMAT_R32G32_USCALED: return TRUE;
+   case PIPE_FORMAT_R32_USCALED: return TRUE;
+
+   case PIPE_FORMAT_R32G32B32A32_SSCALED: return TRUE;
+   case PIPE_FORMAT_R32G32B32_SSCALED: return TRUE;
+   case PIPE_FORMAT_R32G32_SSCALED: return TRUE;
+   case PIPE_FORMAT_R32_SSCALED: return TRUE;
+
+   case PIPE_FORMAT_R32G32B32A32_UNORM: return TRUE;
+   case PIPE_FORMAT_R32G32B32_UNORM: return TRUE;
+   case PIPE_FORMAT_R32G32_UNORM: return TRUE;
+   case PIPE_FORMAT_R32_UNORM: return TRUE;
+
+   case PIPE_FORMAT_R32G32B32A32_SNORM: return TRUE;
+   case PIPE_FORMAT_R32G32B32_SNORM: return TRUE;
+   case PIPE_FORMAT_R32G32_SNORM: return TRUE;
+   case PIPE_FORMAT_R32_SNORM: return TRUE;
+
+   case PIPE_FORMAT_R16G16B16A16_USCALED: return TRUE;
+   case PIPE_FORMAT_R16G16B16_USCALED: return TRUE;
+   case PIPE_FORMAT_R16G16_USCALED: return TRUE;
+   case PIPE_FORMAT_R16_USCALED: return TRUE;
+
+   case PIPE_FORMAT_R16G16B16A16_SSCALED: return TRUE;
+   case PIPE_FORMAT_R16G16B16_SSCALED: return TRUE;
+   case PIPE_FORMAT_R16G16_SSCALED: return TRUE;
+   case PIPE_FORMAT_R16_SSCALED: return TRUE;
+
+   case PIPE_FORMAT_R16G16B16A16_UNORM: return TRUE;
+   case PIPE_FORMAT_R16G16B16_UNORM: return TRUE;
+   case PIPE_FORMAT_R16G16_UNORM: return TRUE;
+   case PIPE_FORMAT_R16_UNORM: return TRUE;
+
+   case PIPE_FORMAT_R16G16B16A16_SNORM: return TRUE;
+   case PIPE_FORMAT_R16G16B16_SNORM: return TRUE;
+   case PIPE_FORMAT_R16G16_SNORM: return TRUE;
+   case PIPE_FORMAT_R16_SNORM: return TRUE;
+
+   case PIPE_FORMAT_R8G8B8A8_USCALED: return TRUE;
+   case PIPE_FORMAT_R8G8B8_USCALED: return TRUE;
+   case PIPE_FORMAT_R8G8_USCALED: return TRUE;
+   case PIPE_FORMAT_R8_USCALED: return TRUE;
+
+   case PIPE_FORMAT_R8G8B8A8_SSCALED: return TRUE;
+   case PIPE_FORMAT_R8G8B8_SSCALED: return TRUE;
+   case PIPE_FORMAT_R8G8_SSCALED: return TRUE;
+   case PIPE_FORMAT_R8_SSCALED: return TRUE;
+
+   case PIPE_FORMAT_R8G8B8A8_UNORM: return TRUE;
+   case PIPE_FORMAT_R8G8B8_UNORM: return TRUE;
+   case PIPE_FORMAT_R8G8_UNORM: return TRUE;
+   case PIPE_FORMAT_R8_UNORM: return TRUE;
+
+   case PIPE_FORMAT_R8G8B8A8_SNORM: return TRUE;
+   case PIPE_FORMAT_R8G8B8_SNORM: return TRUE;
+   case PIPE_FORMAT_R8G8_SNORM: return TRUE;
+   case PIPE_FORMAT_R8_SNORM: return TRUE;
+
+   case PIPE_FORMAT_A8R8G8B8_UNORM: return TRUE;
+   case PIPE_FORMAT_B8G8R8A8_UNORM: return TRUE;
+   default: return FALSE;
+   }
+}