| // qcms |
| // Copyright (C) 2009 Mozilla Foundation |
| // Copyright (C) 2010 Steve Snyder |
| // |
| // 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, sublicense, |
| // 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 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 |
| // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| |
| #include <xmmintrin.h> |
| |
| #include "qcmsint.h" |
| |
| /* pre-shuffled: just load these into XMM reg instead of load-scalar/shufps sequence */ |
| #define FLOATSCALE (float)(PRECACHE_OUTPUT_SIZE) |
| #define CLAMPMAXVAL ( ((float) (PRECACHE_OUTPUT_SIZE - 1)) / PRECACHE_OUTPUT_SIZE ) |
| static const ALIGN float floatScaleX4[4] = |
| { FLOATSCALE, FLOATSCALE, FLOATSCALE, FLOATSCALE}; |
| static const ALIGN float clampMaxValueX4[4] = |
| { CLAMPMAXVAL, CLAMPMAXVAL, CLAMPMAXVAL, CLAMPMAXVAL}; |
| |
| void qcms_transform_data_rgb_out_lut_sse1(qcms_transform *transform, |
| unsigned char *src, |
| unsigned char *dest, |
| size_t length) |
| { |
| unsigned int i; |
| float (*mat)[4] = transform->matrix; |
| char input_back[32]; |
| /* Ensure we have a buffer that's 16 byte aligned regardless of the original |
| * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(align(32)) |
| * because they don't work on stack variables. gcc 4.4 does do the right thing |
| * on x86 but that's too new for us right now. For more info: gcc bug #16660 */ |
| float const * input = (float*)(((uintptr_t)&input_back[16]) & ~0xf); |
| /* share input and output locations to save having to keep the |
| * locations in separate registers */ |
| uint32_t const * output = (uint32_t*)input; |
| |
| /* deref *transform now to avoid it in loop */ |
| const float *igtbl_r = transform->input_gamma_table_r; |
| const float *igtbl_g = transform->input_gamma_table_g; |
| const float *igtbl_b = transform->input_gamma_table_b; |
| |
| /* deref *transform now to avoid it in loop */ |
| const uint8_t *otdata_r = &transform->output_table_r->data[0]; |
| const uint8_t *otdata_g = &transform->output_table_g->data[0]; |
| const uint8_t *otdata_b = &transform->output_table_b->data[0]; |
| |
| /* input matrix values never change */ |
| const __m128 mat0 = _mm_load_ps(mat[0]); |
| const __m128 mat1 = _mm_load_ps(mat[1]); |
| const __m128 mat2 = _mm_load_ps(mat[2]); |
| |
| /* these values don't change, either */ |
| const __m128 max = _mm_load_ps(clampMaxValueX4); |
| const __m128 min = _mm_setzero_ps(); |
| const __m128 scale = _mm_load_ps(floatScaleX4); |
| |
| /* working variables */ |
| __m128 vec_r, vec_g, vec_b, result; |
| |
| /* CYA */ |
| if (!length) |
| return; |
| |
| /* one pixel is handled outside of the loop */ |
| length--; |
| |
| /* setup for transforming 1st pixel */ |
| vec_r = _mm_load_ss(&igtbl_r[src[0]]); |
| vec_g = _mm_load_ss(&igtbl_g[src[1]]); |
| vec_b = _mm_load_ss(&igtbl_b[src[2]]); |
| src += 3; |
| |
| /* transform all but final pixel */ |
| |
| for (i=0; i<length; i++) |
| { |
| /* position values from gamma tables */ |
| vec_r = _mm_shuffle_ps(vec_r, vec_r, 0); |
| vec_g = _mm_shuffle_ps(vec_g, vec_g, 0); |
| vec_b = _mm_shuffle_ps(vec_b, vec_b, 0); |
| |
| /* gamma * matrix */ |
| vec_r = _mm_mul_ps(vec_r, mat0); |
| vec_g = _mm_mul_ps(vec_g, mat1); |
| vec_b = _mm_mul_ps(vec_b, mat2); |
| |
| /* crunch, crunch, crunch */ |
| vec_r = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b)); |
| vec_r = _mm_max_ps(min, vec_r); |
| vec_r = _mm_min_ps(max, vec_r); |
| result = _mm_mul_ps(vec_r, scale); |
| |
| /* store calc'd output tables indices */ |
| *((__m64 *)&output[0]) = _mm_cvtps_pi32(result); |
| result = _mm_movehl_ps(result, result); |
| *((__m64 *)&output[2]) = _mm_cvtps_pi32(result) ; |
| |
| /* load for next loop while store completes */ |
| vec_r = _mm_load_ss(&igtbl_r[src[0]]); |
| vec_g = _mm_load_ss(&igtbl_g[src[1]]); |
| vec_b = _mm_load_ss(&igtbl_b[src[2]]); |
| src += 3; |
| |
| /* use calc'd indices to output RGB values */ |
| dest[OUTPUT_R_INDEX] = otdata_r[output[0]]; |
| dest[OUTPUT_G_INDEX] = otdata_g[output[1]]; |
| dest[OUTPUT_B_INDEX] = otdata_b[output[2]]; |
| dest += RGB_OUTPUT_COMPONENTS; |
| } |
| |
| /* handle final (maybe only) pixel */ |
| |
| vec_r = _mm_shuffle_ps(vec_r, vec_r, 0); |
| vec_g = _mm_shuffle_ps(vec_g, vec_g, 0); |
| vec_b = _mm_shuffle_ps(vec_b, vec_b, 0); |
| |
| vec_r = _mm_mul_ps(vec_r, mat0); |
| vec_g = _mm_mul_ps(vec_g, mat1); |
| vec_b = _mm_mul_ps(vec_b, mat2); |
| |
| vec_r = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b)); |
| vec_r = _mm_max_ps(min, vec_r); |
| vec_r = _mm_min_ps(max, vec_r); |
| result = _mm_mul_ps(vec_r, scale); |
| |
| *((__m64 *)&output[0]) = _mm_cvtps_pi32(result); |
| result = _mm_movehl_ps(result, result); |
| *((__m64 *)&output[2]) = _mm_cvtps_pi32(result); |
| |
| dest[OUTPUT_R_INDEX] = otdata_r[output[0]]; |
| dest[OUTPUT_G_INDEX] = otdata_g[output[1]]; |
| dest[OUTPUT_B_INDEX] = otdata_b[output[2]]; |
| |
| _mm_empty(); |
| } |
| |
| void qcms_transform_data_rgba_out_lut_sse1(qcms_transform *transform, |
| unsigned char *src, |
| unsigned char *dest, |
| size_t length) |
| { |
| unsigned int i; |
| float (*mat)[4] = transform->matrix; |
| char input_back[32]; |
| /* Ensure we have a buffer that's 16 byte aligned regardless of the original |
| * stack alignment. We can't use __attribute__((aligned(16))) or __declspec(align(32)) |
| * because they don't work on stack variables. gcc 4.4 does do the right thing |
| * on x86 but that's too new for us right now. For more info: gcc bug #16660 */ |
| float const * input = (float*)(((uintptr_t)&input_back[16]) & ~0xf); |
| /* share input and output locations to save having to keep the |
| * locations in separate registers */ |
| uint32_t const * output = (uint32_t*)input; |
| |
| /* deref *transform now to avoid it in loop */ |
| const float *igtbl_r = transform->input_gamma_table_r; |
| const float *igtbl_g = transform->input_gamma_table_g; |
| const float *igtbl_b = transform->input_gamma_table_b; |
| |
| /* deref *transform now to avoid it in loop */ |
| const uint8_t *otdata_r = &transform->output_table_r->data[0]; |
| const uint8_t *otdata_g = &transform->output_table_g->data[0]; |
| const uint8_t *otdata_b = &transform->output_table_b->data[0]; |
| |
| /* input matrix values never change */ |
| const __m128 mat0 = _mm_load_ps(mat[0]); |
| const __m128 mat1 = _mm_load_ps(mat[1]); |
| const __m128 mat2 = _mm_load_ps(mat[2]); |
| |
| /* these values don't change, either */ |
| const __m128 max = _mm_load_ps(clampMaxValueX4); |
| const __m128 min = _mm_setzero_ps(); |
| const __m128 scale = _mm_load_ps(floatScaleX4); |
| |
| /* working variables */ |
| __m128 vec_r, vec_g, vec_b, result; |
| unsigned char alpha; |
| |
| /* CYA */ |
| if (!length) |
| return; |
| |
| /* one pixel is handled outside of the loop */ |
| length--; |
| |
| /* setup for transforming 1st pixel */ |
| vec_r = _mm_load_ss(&igtbl_r[src[0]]); |
| vec_g = _mm_load_ss(&igtbl_g[src[1]]); |
| vec_b = _mm_load_ss(&igtbl_b[src[2]]); |
| alpha = src[3]; |
| src += 4; |
| |
| /* transform all but final pixel */ |
| |
| for (i=0; i<length; i++) |
| { |
| /* position values from gamma tables */ |
| vec_r = _mm_shuffle_ps(vec_r, vec_r, 0); |
| vec_g = _mm_shuffle_ps(vec_g, vec_g, 0); |
| vec_b = _mm_shuffle_ps(vec_b, vec_b, 0); |
| |
| /* gamma * matrix */ |
| vec_r = _mm_mul_ps(vec_r, mat0); |
| vec_g = _mm_mul_ps(vec_g, mat1); |
| vec_b = _mm_mul_ps(vec_b, mat2); |
| |
| /* store alpha for this pixel; load alpha for next */ |
| dest[OUTPUT_A_INDEX] = alpha; |
| alpha = src[3]; |
| |
| /* crunch, crunch, crunch */ |
| vec_r = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b)); |
| vec_r = _mm_max_ps(min, vec_r); |
| vec_r = _mm_min_ps(max, vec_r); |
| result = _mm_mul_ps(vec_r, scale); |
| |
| /* store calc'd output tables indices */ |
| *((__m64 *)&output[0]) = _mm_cvtps_pi32(result); |
| result = _mm_movehl_ps(result, result); |
| *((__m64 *)&output[2]) = _mm_cvtps_pi32(result); |
| |
| /* load gamma values for next loop while store completes */ |
| vec_r = _mm_load_ss(&igtbl_r[src[0]]); |
| vec_g = _mm_load_ss(&igtbl_g[src[1]]); |
| vec_b = _mm_load_ss(&igtbl_b[src[2]]); |
| src += 4; |
| |
| /* use calc'd indices to output RGB values */ |
| dest[OUTPUT_R_INDEX] = otdata_r[output[0]]; |
| dest[OUTPUT_G_INDEX] = otdata_g[output[1]]; |
| dest[OUTPUT_B_INDEX] = otdata_b[output[2]]; |
| dest += 4; |
| } |
| |
| /* handle final (maybe only) pixel */ |
| |
| vec_r = _mm_shuffle_ps(vec_r, vec_r, 0); |
| vec_g = _mm_shuffle_ps(vec_g, vec_g, 0); |
| vec_b = _mm_shuffle_ps(vec_b, vec_b, 0); |
| |
| vec_r = _mm_mul_ps(vec_r, mat0); |
| vec_g = _mm_mul_ps(vec_g, mat1); |
| vec_b = _mm_mul_ps(vec_b, mat2); |
| |
| dest[OUTPUT_A_INDEX] = alpha; |
| |
| vec_r = _mm_add_ps(vec_r, _mm_add_ps(vec_g, vec_b)); |
| vec_r = _mm_max_ps(min, vec_r); |
| vec_r = _mm_min_ps(max, vec_r); |
| result = _mm_mul_ps(vec_r, scale); |
| |
| *((__m64 *)&output[0]) = _mm_cvtps_pi32(result); |
| result = _mm_movehl_ps(result, result); |
| *((__m64 *)&output[2]) = _mm_cvtps_pi32(result); |
| |
| dest[OUTPUT_R_INDEX] = otdata_r[output[0]]; |
| dest[OUTPUT_G_INDEX] = otdata_g[output[1]]; |
| dest[OUTPUT_B_INDEX] = otdata_b[output[2]]; |
| |
| _mm_empty(); |
| } |