src/gallium/drivers/cell/spu/spu_colorpack.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29
  30 #ifndef SPU_COLORPACK_H
  31 #define SPU_COLORPACK_H
  32
  33
  34 #include <transpose_matrix4x4.h>
  35 #include <spu_intrinsics.h>
  36
  37
  38 static INLINE unsigned int
  39 spu_pack_R8G8B8A8(vector float rgba)
  40 {
  41   vector unsigned int out = spu_convtu(rgba, 32);
  42
  43   out = spu_shuffle(out, out, ((vector unsigned char) {
  44                                   0, 4, 8, 12, 0, 0, 0, 0,
  45                                   0, 0, 0, 0, 0, 0, 0, 0 }) );
  46
  47   return spu_extract(out, 0);
  48 }
  49
  50
  51 static INLINE unsigned int
  52 spu_pack_A8R8G8B8(vector float rgba)
  53 {
  54   vector unsigned int out = spu_convtu(rgba, 32);
  55   out = spu_shuffle(out, out, ((vector unsigned char) {
  56                                   12, 0, 4, 8, 0, 0, 0, 0,
  57                                   0, 0, 0, 0, 0, 0, 0, 0}) );
  58   return spu_extract(out, 0);
  59 }
  60
  61
  62 static INLINE unsigned int
  63 spu_pack_B8G8R8A8(vector float rgba)
  64 {
  65   vector unsigned int out = spu_convtu(rgba, 32);
  66   out = spu_shuffle(out, out, ((vector unsigned char) {
  67                                   8, 4, 0, 12, 0, 0, 0, 0,
  68                                   0, 0, 0, 0, 0, 0, 0, 0}) );
  69   return spu_extract(out, 0);
  70 }
  71
  72
  73 static INLINE unsigned int
  74 spu_pack_color_shuffle(vector float rgba, vector unsigned char shuffle)
  75 {
  76   vector unsigned int out = spu_convtu(rgba, 32);
  77   out = spu_shuffle(out, out, shuffle);
  78   return spu_extract(out, 0);
  79 }
  80
  81
  82 static INLINE vector float
  83 spu_unpack_B8G8R8A8(uint color)
  84 {
  85    vector unsigned int color_u4 = spu_splats(color);
  86    color_u4 = spu_shuffle(color_u4, color_u4,
  87                           ((vector unsigned char) {
  88                              2, 2, 2, 2,
  89                              1, 1, 1, 1,
  90                              0, 0, 0, 0,
  91                              3, 3, 3, 3}) );
  92    return spu_convtf(color_u4, 32);
  93 }
  94
  95
  96 static INLINE vector float
  97 spu_unpack_A8R8G8B8(uint color)
  98 {
  99    vector unsigned int color_u4 = spu_splats(color);
 100    color_u4 = spu_shuffle(color_u4, color_u4,
 101                           ((vector unsigned char) {
 102                              1, 1, 1, 1,
 103                              2, 2, 2, 2,
 104                              3, 3, 3, 3,
 105                              0, 0, 0, 0}) );
 106    return spu_convtf(color_u4, 32);
 107 }
 108
 109
 110 /**
 111  * \param color_in - array of 32-bit packed ARGB colors
 112  * \param color_out - returns float colors in RRRR, GGGG, BBBB, AAAA order
 113  */
 114 static INLINE void
 115 spu_unpack_A8R8G8B8_transpose4(const vector unsigned int color_in[4],
 116                                vector float color_out[4])
 117 {
 118    vector unsigned int c0;
 119
 120    c0 = spu_shuffle(color_in[0], color_in[0],
 121                     ((vector unsigned char) {
 122                        1, 1, 1, 1,  2, 2, 2, 2,  3, 3, 3, 3,  0, 0, 0, 0}) );
 123    color_out[0] = spu_convtf(c0, 32);
 124
 125    c0 = spu_shuffle(color_in[1], color_in[1],
 126                     ((vector unsigned char) {
 127                        1, 1, 1, 1,  2, 2, 2, 2,  3, 3, 3, 3,  0, 0, 0, 0}) );
 128    color_out[1] = spu_convtf(c0, 32);
 129
 130    c0 = spu_shuffle(color_in[2], color_in[2],
 131                     ((vector unsigned char) {
 132                        1, 1, 1, 1,  2, 2, 2, 2,  3, 3, 3, 3,  0, 0, 0, 0}) );
 133    color_out[2] = spu_convtf(c0, 32);
 134
 135    c0 = spu_shuffle(color_in[3], color_in[3],
 136                     ((vector unsigned char) {
 137                        1, 1, 1, 1,  2, 2, 2, 2,  3, 3, 3, 3,  0, 0, 0, 0}) );
 138    color_out[3] = spu_convtf(c0, 32);
 139
 140    _transpose_matrix4x4(color_out, color_out);
 141 }
 142
 143
 144
 145 #endif /* SPU_COLORPACK_H */