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1 // qcms | 1 // qcms |
2 // Copyright (C) 2009 Mozilla Foundation | 2 // Copyright (C) 2009 Mozilla Foundation |
3 // | 3 // |
4 // Permission is hereby granted, free of charge, to any person obtaining | 4 // Permission is hereby granted, free of charge, to any person obtaining |
5 // a copy of this software and associated documentation files (the "Software"), | 5 // a copy of this software and associated documentation files (the "Software"), |
6 // to deal in the Software without restriction, including without limitation | 6 // to deal in the Software without restriction, including without limitation |
7 // the rights to use, copy, modify, merge, publish, distribute, sublicense, | 7 // the rights to use, copy, modify, merge, publish, distribute, sublicense, |
8 // and/or sell copies of the Software, and to permit persons to whom the Softwar
e | 8 // and/or sell copies of the Software, and to permit persons to whom the Softwar
e |
9 // is furnished to do so, subject to the following conditions: | 9 // is furnished to do so, subject to the following conditions: |
10 // | 10 // |
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135 vec_r = _mm_min_ps(max, vec_r); | 135 vec_r = _mm_min_ps(max, vec_r); |
136 result = _mm_mul_ps(vec_r, scale); | 136 result = _mm_mul_ps(vec_r, scale); |
137 | 137 |
138 _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result)); | 138 _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result)); |
139 | 139 |
140 dest[0] = otdata_r[output[0]]; | 140 dest[0] = otdata_r[output[0]]; |
141 dest[1] = otdata_g[output[1]]; | 141 dest[1] = otdata_g[output[1]]; |
142 dest[2] = otdata_b[output[2]]; | 142 dest[2] = otdata_b[output[2]]; |
143 } | 143 } |
144 | 144 |
| 145 void qcms_transform_data_bgra_out_lut_sse2(qcms_transform *transform, |
| 146 unsigned char *src, |
| 147 unsigned char *dest, |
| 148 size_t length) |
| 149 { |
| 150 unsigned int i; |
| 151 float (*mat)[4] = transform->matrix; |
| 152 char input_back[32]; |
| 153 /* Ensure we have a buffer that's 16 byte aligned regardless of the original |
| 154 * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(
align(32)) |
| 155 * because they don't work on stack variables. gcc 4.4 does do the right thi
ng |
| 156 * on x86 but that's too new for us right now. For more info: gcc bug #16660
*/ |
| 157 float const * input = (float*)(((uintptr_t)&input_back[16]) & ~0xf); |
| 158 /* share input and output locations to save having to keep the |
| 159 * locations in separate registers */ |
| 160 uint32_t const * output = (uint32_t*)input; |
| 161 |
| 162 /* deref *transform now to avoid it in loop */ |
| 163 const float *igtbl_r = transform->input_gamma_table_r; |
| 164 const float *igtbl_g = transform->input_gamma_table_g; |
| 165 const float *igtbl_b = transform->input_gamma_table_b; |
| 166 |
| 167 /* deref *transform now to avoid it in loop */ |
| 168 const uint8_t *otdata_r = &transform->output_table_r->data[0]; |
| 169 const uint8_t *otdata_g = &transform->output_table_g->data[0]; |
| 170 const uint8_t *otdata_b = &transform->output_table_b->data[0]; |
| 171 |
| 172 /* input matrix values never change */ |
| 173 const __m128 mat0 = _mm_load_ps(mat[0]); |
| 174 const __m128 mat1 = _mm_load_ps(mat[1]); |
| 175 const __m128 mat2 = _mm_load_ps(mat[2]); |
| 176 |
| 177 /* these values don't change, either */ |
| 178 const __m128 max = _mm_load_ps(clampMaxValueX4); |
| 179 const __m128 min = _mm_setzero_ps(); |
| 180 const __m128 scale = _mm_load_ps(floatScaleX4); |
| 181 |
| 182 /* working variables */ |
| 183 __m128 vec_r, vec_g, vec_b, result; |
| 184 unsigned char alpha; |
| 185 |
| 186 /* CYA */ |
| 187 if (!length) |
| 188 return; |
| 189 |
| 190 /* one pixel is handled outside of the loop */ |
| 191 length--; |
| 192 |
| 193 /* setup for transforming 1st pixel */ |
| 194 vec_b = _mm_load_ss(&igtbl_b[src[0]]); |
| 195 vec_g = _mm_load_ss(&igtbl_g[src[1]]); |
| 196 vec_r = _mm_load_ss(&igtbl_r[src[2]]); |
| 197 alpha = src[3]; |
| 198 src += 4; |
| 199 |
| 200 /* transform all but final pixel */ |
| 201 |
| 202 for (i=0; i<length; i++) |
| 203 { |
| 204 /* position values from gamma tables */ |
| 205 vec_r = _mm_shuffle_ps(vec_r, vec_r, 0); |
| 206 vec_g = _mm_shuffle_ps(vec_g, vec_g, 0); |
| 207 vec_b = _mm_shuffle_ps(vec_b, vec_b, 0); |
| 208 |
| 209 /* gamma * matrix */ |
| 210 vec_r = _mm_mul_ps(vec_r, mat0); |
| 211 vec_g = _mm_mul_ps(vec_g, mat1); |
| 212 vec_b = _mm_mul_ps(vec_b, mat2); |
| 213 |
| 214 /* store alpha for this pixel; load alpha for next */ |
| 215 dest[3] = alpha; |
| 216 alpha = src[3]; |
| 217 |
| 218 /* crunch, crunch, crunch */ |
| 219 vec_r = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b)); |
| 220 vec_r = _mm_max_ps(min, vec_r); |
| 221 vec_r = _mm_min_ps(max, vec_r); |
| 222 result = _mm_mul_ps(vec_r, scale); |
| 223 |
| 224 /* store calc'd output tables indices */ |
| 225 _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result)); |
| 226 |
| 227 /* load gamma values for next loop while store completes */ |
| 228 vec_b = _mm_load_ss(&igtbl_b[src[0]]); |
| 229 vec_g = _mm_load_ss(&igtbl_g[src[1]]); |
| 230 vec_r = _mm_load_ss(&igtbl_r[src[2]]); |
| 231 src += 4; |
| 232 |
| 233 /* use calc'd indices to output RGB values */ |
| 234 dest[0] = otdata_b[output[2]]; |
| 235 dest[1] = otdata_g[output[1]]; |
| 236 dest[2] = otdata_r[output[0]]; |
| 237 dest += 4; |
| 238 } |
| 239 |
| 240 /* handle final (maybe only) pixel */ |
| 241 |
| 242 vec_r = _mm_shuffle_ps(vec_r, vec_r, 0); |
| 243 vec_g = _mm_shuffle_ps(vec_g, vec_g, 0); |
| 244 vec_b = _mm_shuffle_ps(vec_b, vec_b, 0); |
| 245 |
| 246 vec_r = _mm_mul_ps(vec_r, mat0); |
| 247 vec_g = _mm_mul_ps(vec_g, mat1); |
| 248 vec_b = _mm_mul_ps(vec_b, mat2); |
| 249 |
| 250 dest[3] = alpha; |
| 251 |
| 252 vec_r = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b)); |
| 253 vec_r = _mm_max_ps(min, vec_r); |
| 254 vec_r = _mm_min_ps(max, vec_r); |
| 255 result = _mm_mul_ps(vec_r, scale); |
| 256 |
| 257 _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result)); |
| 258 |
| 259 dest[0] = otdata_b[output[2]]; |
| 260 dest[1] = otdata_g[output[1]]; |
| 261 dest[2] = otdata_r[output[0]]; |
| 262 } |
145 void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform, | 263 void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform, |
146 unsigned char *src, | 264 unsigned char *src, |
147 unsigned char *dest, | 265 unsigned char *dest, |
148 size_t length) | 266 size_t length) |
149 { | 267 { |
150 unsigned int i; | 268 unsigned int i; |
151 float (*mat)[4] = transform->matrix; | 269 float (*mat)[4] = transform->matrix; |
152 char input_back[32]; | 270 char input_back[32]; |
153 /* Ensure we have a buffer that's 16 byte aligned regardless of the original | 271 /* Ensure we have a buffer that's 16 byte aligned regardless of the original |
154 * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(
align(32)) | 272 * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(
align(32)) |
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253 vec_r = _mm_max_ps(min, vec_r); | 371 vec_r = _mm_max_ps(min, vec_r); |
254 vec_r = _mm_min_ps(max, vec_r); | 372 vec_r = _mm_min_ps(max, vec_r); |
255 result = _mm_mul_ps(vec_r, scale); | 373 result = _mm_mul_ps(vec_r, scale); |
256 | 374 |
257 _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result)); | 375 _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result)); |
258 | 376 |
259 dest[0] = otdata_r[output[0]]; | 377 dest[0] = otdata_r[output[0]]; |
260 dest[1] = otdata_g[output[1]]; | 378 dest[1] = otdata_g[output[1]]; |
261 dest[2] = otdata_b[output[2]]; | 379 dest[2] = otdata_b[output[2]]; |
262 } | 380 } |
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