5 /* pre-shuffled: just load these into XMM reg instead of load-scalar/shufps sequence */
6 #define FLOATSCALE (float)(PRECACHE_OUTPUT_SIZE)
7 #define CLAMPMAXVAL ( ((float) (PRECACHE_OUTPUT_SIZE - 1)) / PRECACHE_OUTPUT_SIZE )
8 static const ALIGN
float floatScaleX4
[4] =
9 { FLOATSCALE
, FLOATSCALE
, FLOATSCALE
, FLOATSCALE
};
10 static const ALIGN
float clampMaxValueX4
[4] =
11 { CLAMPMAXVAL
, CLAMPMAXVAL
, CLAMPMAXVAL
, CLAMPMAXVAL
};
13 void qcms_transform_data_rgb_out_lut_sse1(qcms_transform
*transform
,
19 float (*mat
)[4] = transform
->matrix
;
21 /* Ensure we have a buffer that's 16 byte aligned regardless of the original
22 * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(align(32))
23 * because they don't work on stack variables. gcc 4.4 does do the right thing
24 * on x86 but that's too new for us right now. For more info: gcc bug #16660 */
25 float const * input
= (float*)(((uintptr_t)&input_back
[16]) & ~0xf);
26 /* share input and output locations to save having to keep the
27 * locations in separate registers */
28 uint32_t const * output
= (uint32_t*)input
;
30 /* deref *transform now to avoid it in loop */
31 const float *igtbl_r
= transform
->input_gamma_table_r
;
32 const float *igtbl_g
= transform
->input_gamma_table_g
;
33 const float *igtbl_b
= transform
->input_gamma_table_b
;
35 /* deref *transform now to avoid it in loop */
36 const uint8_t *otdata_r
= &transform
->output_table_r
->data
[0];
37 const uint8_t *otdata_g
= &transform
->output_table_g
->data
[0];
38 const uint8_t *otdata_b
= &transform
->output_table_b
->data
[0];
40 /* input matrix values never change */
41 const __m128 mat0
= _mm_load_ps(mat
[0]);
42 const __m128 mat1
= _mm_load_ps(mat
[1]);
43 const __m128 mat2
= _mm_load_ps(mat
[2]);
45 /* these values don't change, either */
46 const __m128 max
= _mm_load_ps(clampMaxValueX4
);
47 const __m128 min
= _mm_setzero_ps();
48 const __m128 scale
= _mm_load_ps(floatScaleX4
);
50 /* working variables */
51 __m128 vec_r
, vec_g
, vec_b
, result
;
57 /* one pixel is handled outside of the loop */
60 /* setup for transforming 1st pixel */
61 vec_r
= _mm_load_ss(&igtbl_r
[src
[0]]);
62 vec_g
= _mm_load_ss(&igtbl_g
[src
[1]]);
63 vec_b
= _mm_load_ss(&igtbl_b
[src
[2]]);
66 /* transform all but final pixel */
68 for (i
=0; i
<length
; i
++)
70 /* position values from gamma tables */
71 vec_r
= _mm_shuffle_ps(vec_r
, vec_r
, 0);
72 vec_g
= _mm_shuffle_ps(vec_g
, vec_g
, 0);
73 vec_b
= _mm_shuffle_ps(vec_b
, vec_b
, 0);
76 vec_r
= _mm_mul_ps(vec_r
, mat0
);
77 vec_g
= _mm_mul_ps(vec_g
, mat1
);
78 vec_b
= _mm_mul_ps(vec_b
, mat2
);
80 /* crunch, crunch, crunch */
81 vec_r
= _mm_add_ps(vec_r
, _mm_add_ps(vec_g
, vec_b
));
82 vec_r
= _mm_max_ps(min
, vec_r
);
83 vec_r
= _mm_min_ps(max
, vec_r
);
84 result
= _mm_mul_ps(vec_r
, scale
);
86 /* store calc'd output tables indices */
87 *((__m64
*)&output
[0]) = _mm_cvtps_pi32(result
);
88 result
= _mm_movehl_ps(result
, result
);
89 *((__m64
*)&output
[2]) = _mm_cvtps_pi32(result
) ;
91 /* load for next loop while store completes */
92 vec_r
= _mm_load_ss(&igtbl_r
[src
[0]]);
93 vec_g
= _mm_load_ss(&igtbl_g
[src
[1]]);
94 vec_b
= _mm_load_ss(&igtbl_b
[src
[2]]);
97 /* use calc'd indices to output RGB values */
98 dest
[OUTPUT_R_INDEX
] = otdata_r
[output
[0]];
99 dest
[OUTPUT_G_INDEX
] = otdata_g
[output
[1]];
100 dest
[OUTPUT_B_INDEX
] = otdata_b
[output
[2]];
101 dest
+= RGB_OUTPUT_COMPONENTS
;
104 /* handle final (maybe only) pixel */
106 vec_r
= _mm_shuffle_ps(vec_r
, vec_r
, 0);
107 vec_g
= _mm_shuffle_ps(vec_g
, vec_g
, 0);
108 vec_b
= _mm_shuffle_ps(vec_b
, vec_b
, 0);
110 vec_r
= _mm_mul_ps(vec_r
, mat0
);
111 vec_g
= _mm_mul_ps(vec_g
, mat1
);
112 vec_b
= _mm_mul_ps(vec_b
, mat2
);
114 vec_r
= _mm_add_ps(vec_r
, _mm_add_ps(vec_g
, vec_b
));
115 vec_r
= _mm_max_ps(min
, vec_r
);
116 vec_r
= _mm_min_ps(max
, vec_r
);
117 result
= _mm_mul_ps(vec_r
, scale
);
119 *((__m64
*)&output
[0]) = _mm_cvtps_pi32(result
);
120 result
= _mm_movehl_ps(result
, result
);
121 *((__m64
*)&output
[2]) = _mm_cvtps_pi32(result
);
123 dest
[OUTPUT_R_INDEX
] = otdata_r
[output
[0]];
124 dest
[OUTPUT_G_INDEX
] = otdata_g
[output
[1]];
125 dest
[OUTPUT_B_INDEX
] = otdata_b
[output
[2]];
130 void qcms_transform_data_rgba_out_lut_sse1(qcms_transform
*transform
,
136 float (*mat
)[4] = transform
->matrix
;
138 /* Ensure we have a buffer that's 16 byte aligned regardless of the original
139 * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(align(32))
140 * because they don't work on stack variables. gcc 4.4 does do the right thing
141 * on x86 but that's too new for us right now. For more info: gcc bug #16660 */
142 float const * input
= (float*)(((uintptr_t)&input_back
[16]) & ~0xf);
143 /* share input and output locations to save having to keep the
144 * locations in separate registers */
145 uint32_t const * output
= (uint32_t*)input
;
147 /* deref *transform now to avoid it in loop */
148 const float *igtbl_r
= transform
->input_gamma_table_r
;
149 const float *igtbl_g
= transform
->input_gamma_table_g
;
150 const float *igtbl_b
= transform
->input_gamma_table_b
;
152 /* deref *transform now to avoid it in loop */
153 const uint8_t *otdata_r
= &transform
->output_table_r
->data
[0];
154 const uint8_t *otdata_g
= &transform
->output_table_g
->data
[0];
155 const uint8_t *otdata_b
= &transform
->output_table_b
->data
[0];
157 /* input matrix values never change */
158 const __m128 mat0
= _mm_load_ps(mat
[0]);
159 const __m128 mat1
= _mm_load_ps(mat
[1]);
160 const __m128 mat2
= _mm_load_ps(mat
[2]);
162 /* these values don't change, either */
163 const __m128 max
= _mm_load_ps(clampMaxValueX4
);
164 const __m128 min
= _mm_setzero_ps();
165 const __m128 scale
= _mm_load_ps(floatScaleX4
);
167 /* working variables */
168 __m128 vec_r
, vec_g
, vec_b
, result
;
175 /* one pixel is handled outside of the loop */
178 /* setup for transforming 1st pixel */
179 vec_r
= _mm_load_ss(&igtbl_r
[src
[0]]);
180 vec_g
= _mm_load_ss(&igtbl_g
[src
[1]]);
181 vec_b
= _mm_load_ss(&igtbl_b
[src
[2]]);
185 /* transform all but final pixel */
187 for (i
=0; i
<length
; i
++)
189 /* position values from gamma tables */
190 vec_r
= _mm_shuffle_ps(vec_r
, vec_r
, 0);
191 vec_g
= _mm_shuffle_ps(vec_g
, vec_g
, 0);
192 vec_b
= _mm_shuffle_ps(vec_b
, vec_b
, 0);
195 vec_r
= _mm_mul_ps(vec_r
, mat0
);
196 vec_g
= _mm_mul_ps(vec_g
, mat1
);
197 vec_b
= _mm_mul_ps(vec_b
, mat2
);
199 /* store alpha for this pixel; load alpha for next */
200 dest
[OUTPUT_A_INDEX
] = alpha
;
203 /* crunch, crunch, crunch */
204 vec_r
= _mm_add_ps(vec_r
, _mm_add_ps(vec_g
, vec_b
));
205 vec_r
= _mm_max_ps(min
, vec_r
);
206 vec_r
= _mm_min_ps(max
, vec_r
);
207 result
= _mm_mul_ps(vec_r
, scale
);
209 /* store calc'd output tables indices */
210 *((__m64
*)&output
[0]) = _mm_cvtps_pi32(result
);
211 result
= _mm_movehl_ps(result
, result
);
212 *((__m64
*)&output
[2]) = _mm_cvtps_pi32(result
);
214 /* load gamma values for next loop while store completes */
215 vec_r
= _mm_load_ss(&igtbl_r
[src
[0]]);
216 vec_g
= _mm_load_ss(&igtbl_g
[src
[1]]);
217 vec_b
= _mm_load_ss(&igtbl_b
[src
[2]]);
220 /* use calc'd indices to output RGB values */
221 dest
[OUTPUT_R_INDEX
] = otdata_r
[output
[0]];
222 dest
[OUTPUT_G_INDEX
] = otdata_g
[output
[1]];
223 dest
[OUTPUT_B_INDEX
] = otdata_b
[output
[2]];
227 /* handle final (maybe only) pixel */
229 vec_r
= _mm_shuffle_ps(vec_r
, vec_r
, 0);
230 vec_g
= _mm_shuffle_ps(vec_g
, vec_g
, 0);
231 vec_b
= _mm_shuffle_ps(vec_b
, vec_b
, 0);
233 vec_r
= _mm_mul_ps(vec_r
, mat0
);
234 vec_g
= _mm_mul_ps(vec_g
, mat1
);
235 vec_b
= _mm_mul_ps(vec_b
, mat2
);
237 dest
[OUTPUT_A_INDEX
] = alpha
;
239 vec_r
= _mm_add_ps(vec_r
, _mm_add_ps(vec_g
, vec_b
));
240 vec_r
= _mm_max_ps(min
, vec_r
);
241 vec_r
= _mm_min_ps(max
, vec_r
);
242 result
= _mm_mul_ps(vec_r
, scale
);
244 *((__m64
*)&output
[0]) = _mm_cvtps_pi32(result
);
245 result
= _mm_movehl_ps(result
, result
);
246 *((__m64
*)&output
[2]) = _mm_cvtps_pi32(result
);
248 dest
[OUTPUT_R_INDEX
] = otdata_r
[output
[0]];
249 dest
[OUTPUT_G_INDEX
] = otdata_g
[output
[1]];
250 dest
[OUTPUT_B_INDEX
] = otdata_b
[output
[2]];