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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef SPU_COLORPACK_H
#define SPU_COLORPACK_H
#include <transpose_matrix4x4.h>
#include <spu_intrinsics.h>
static INLINE unsigned int
spu_pack_R8G8B8A8(vector float rgba)
{
vector unsigned int out = spu_convtu(rgba, 32);
out = spu_shuffle(out, out, ((vector unsigned char) {
0, 4, 8, 12, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0 }) );
return spu_extract(out, 0);
}
static INLINE unsigned int
spu_pack_A8R8G8B8(vector float rgba)
{
vector unsigned int out = spu_convtu(rgba, 32);
out = spu_shuffle(out, out, ((vector unsigned char) {
12, 0, 4, 8, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0}) );
return spu_extract(out, 0);
}
static INLINE unsigned int
spu_pack_B8G8R8A8(vector float rgba)
{
vector unsigned int out = spu_convtu(rgba, 32);
out = spu_shuffle(out, out, ((vector unsigned char) {
8, 4, 0, 12, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0}) );
return spu_extract(out, 0);
}
static INLINE unsigned int
spu_pack_color_shuffle(vector float rgba, vector unsigned char shuffle)
{
vector unsigned int out = spu_convtu(rgba, 32);
out = spu_shuffle(out, out, shuffle);
return spu_extract(out, 0);
}
static INLINE vector float
spu_unpack_B8G8R8A8(uint color)
{
vector unsigned int color_u4 = spu_splats(color);
color_u4 = spu_shuffle(color_u4, color_u4,
((vector unsigned char) {
2, 2, 2, 2,
1, 1, 1, 1,
0, 0, 0, 0,
3, 3, 3, 3}) );
return spu_convtf(color_u4, 32);
}
static INLINE vector float
spu_unpack_A8R8G8B8(uint color)
{
vector unsigned int color_u4 = spu_splats(color);
color_u4 = spu_shuffle(color_u4, color_u4,
((vector unsigned char) {
1, 1, 1, 1,
2, 2, 2, 2,
3, 3, 3, 3,
0, 0, 0, 0}) );
return spu_convtf(color_u4, 32);
}
/**
* \param color_in - array of 32-bit packed ARGB colors
* \param color_out - returns float colors in RRRR, GGGG, BBBB, AAAA order
*/
static INLINE void
spu_unpack_A8R8G8B8_transpose4(const vector unsigned int color_in[4],
vector float color_out[4])
{
vector unsigned int c0;
c0 = spu_shuffle(color_in[0], color_in[0],
((vector unsigned char) {
1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 0, 0, 0, 0}) );
color_out[0] = spu_convtf(c0, 32);
c0 = spu_shuffle(color_in[1], color_in[1],
((vector unsigned char) {
1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 0, 0, 0, 0}) );
color_out[1] = spu_convtf(c0, 32);
c0 = spu_shuffle(color_in[2], color_in[2],
((vector unsigned char) {
1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 0, 0, 0, 0}) );
color_out[2] = spu_convtf(c0, 32);
c0 = spu_shuffle(color_in[3], color_in[3],
((vector unsigned char) {
1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 0, 0, 0, 0}) );
color_out[3] = spu_convtf(c0, 32);
_transpose_matrix4x4(color_out, color_out);
}
#endif /* SPU_COLORPACK_H */
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