| // qcms |
| // Copyright (C) 2009 Mozilla Foundation |
| // Copyright (C) 2015 Intel Corporation |
| // |
| // 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 <emmintrin.h> |
| |
| #include "qcmsint.h" |
| |
| /* pre-shuffled: just load these into XMM reg instead of load-scalar/shufps sequence */ |
| #define FLOATSCALE (float)(PRECACHE_OUTPUT_SIZE - 1) |
| #define CLAMPMAXVAL 1.0f |
| |
| 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_sse2(qcms_transform *transform, |
| unsigned char *src, |
| unsigned char *dest, |
| size_t length, |
| qcms_format_type output_format) |
| { |
| 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; |
| const int r_out = output_format.r; |
| const int b_out = output_format.b; |
| |
| /* 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_g, _mm_add_ps(vec_r, 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 */ |
| _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(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[r_out] = otdata_r[output[0]]; |
| dest[1] = otdata_g[output[1]]; |
| dest[b_out] = otdata_b[output[2]]; |
| dest += 3; |
| } |
| |
| /* 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_g, _mm_add_ps(vec_r, 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); |
| |
| _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result)); |
| |
| dest[r_out] = otdata_r[output[0]]; |
| dest[1] = otdata_g[output[1]]; |
| dest[b_out] = otdata_b[output[2]]; |
| } |
| |
| void qcms_transform_data_rgba_out_lut_sse2(qcms_transform *transform, |
| unsigned char *src, |
| unsigned char *dest, |
| size_t length, |
| qcms_format_type output_format) |
| { |
| 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; |
| const int r_out = output_format.r; |
| const int b_out = output_format.b; |
| 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[3] = alpha; |
| alpha = src[3]; |
| |
| /* crunch, crunch, crunch */ |
| vec_r = _mm_add_ps(vec_g, _mm_add_ps(vec_r, 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 */ |
| _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(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[r_out] = otdata_r[output[0]]; |
| dest[1] = otdata_g[output[1]]; |
| dest[b_out] = 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[3] = alpha; |
| |
| vec_r = _mm_add_ps(vec_g, _mm_add_ps(vec_r, 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); |
| |
| _mm_store_si128((__m128i*)output, _mm_cvtps_epi32(result)); |
| |
| dest[r_out] = otdata_r[output[0]]; |
| dest[1] = otdata_g[output[1]]; |
| dest[b_out] = otdata_b[output[2]]; |
| } |
| |
| static inline __m128i __mm_swizzle_epi32(__m128i value, int bgra) |
| { |
| return bgra ? _mm_shuffle_epi32(value, _MM_SHUFFLE(0, 1, 2, 3)) : |
| _mm_shuffle_epi32(value, _MM_SHUFFLE(0, 3, 2, 1)) ; |
| } |
| |
| void qcms_transform_data_tetra_clut_rgba_sse2(qcms_transform *transform, |
| unsigned char *src, |
| unsigned char *dest, |
| size_t length, |
| qcms_format_type output_format) |
| { |
| const int bgra = output_format.r; |
| |
| size_t i; |
| |
| const int xy_len_3 = 3 * 1; |
| const int x_len_3 = 3 * transform->grid_size; |
| const int len_3 = x_len_3 * transform->grid_size; |
| |
| const __m128 __255 = _mm_set1_ps(255.0f); |
| const __m128 __one = _mm_set1_ps(1.0f); |
| const __m128 __000 = _mm_setzero_ps(); |
| |
| const float* r_table = transform->r_clut; |
| const float* g_table = transform->g_clut; |
| const float* b_table = transform->b_clut; |
| |
| int i3, i2, i1, i0; |
| |
| __m128 c3; |
| __m128 c2; |
| __m128 c1; |
| __m128 c0; |
| |
| if (!(transform->transform_flags & TRANSFORM_FLAG_CLUT_CACHE)) |
| qcms_transform_build_clut_cache(transform); |
| |
| for (i = 0; i < length; ++i) { |
| unsigned char in_r = *src++; |
| unsigned char in_g = *src++; |
| unsigned char in_b = *src++; |
| |
| // initialize the output result with the alpha channel only |
| |
| __m128i result = _mm_setr_epi32(*src++, 0, 0, 0); |
| |
| // get the input point r.xyz relative to the subcube origin |
| |
| float rx = transform->r_cache[in_r]; |
| float ry = transform->r_cache[in_g]; |
| float rz = transform->r_cache[in_b]; |
| |
| // load and LUT scale the subcube maximum vertex |
| |
| int xn = transform->ceil_cache[in_r] * len_3; |
| int yn = transform->ceil_cache[in_g] * x_len_3; |
| int zn = transform->ceil_cache[in_b] * xy_len_3; |
| |
| // load and LUT scale the subcube origin vertex |
| |
| int x0 = transform->floor_cache[in_r] * len_3; |
| int y0 = transform->floor_cache[in_g] * x_len_3; |
| int z0 = transform->floor_cache[in_b] * xy_len_3; |
| |
| // tetrahedral interpolate the input color r.xyz |
| |
| #define TETRA_LOOKUP_CLUT(i3, i2, i1, i0) \ |
| c0 = _mm_set_ps(b_table[i0], g_table[i0], r_table[i0], 0.f), \ |
| c1 = _mm_set_ps(b_table[i1], g_table[i1], r_table[i1], 0.f), \ |
| c2 = _mm_set_ps(b_table[i2], g_table[i2], r_table[i2], 0.f), \ |
| c3 = _mm_set_ps(b_table[i3], g_table[i3], r_table[i3], 0.f) |
| |
| i0 = x0 + y0 + z0; |
| |
| if (rx >= ry) { |
| |
| if (ry >= rz) { // rx >= ry && ry >= rz |
| |
| i3 = yn + (i1 = xn); |
| i1 += i0 - x0; |
| i2 = i3 + z0; |
| i3 += zn; |
| |
| TETRA_LOOKUP_CLUT(i3, i2, i1, i0); |
| |
| c3 = _mm_sub_ps(c3, c2); |
| c2 = _mm_sub_ps(c2, c1); |
| c1 = _mm_sub_ps(c1, c0); |
| |
| } else if (rx >= rz) { // rx >= rz && rz >= ry |
| |
| i3 = zn + (i1 = xn); |
| i1 += i0 - x0; |
| i2 = i3 + yn; |
| i3 += y0; |
| |
| TETRA_LOOKUP_CLUT(i3, i2, i1, i0); |
| |
| c2 = _mm_sub_ps(c2, c3); |
| c3 = _mm_sub_ps(c3, c1); |
| c1 = _mm_sub_ps(c1, c0); |
| |
| } else { // rz > rx && rx >= ry |
| |
| i2 = xn + (i3 = zn); |
| i3 += i0 - z0; |
| i1 = i2 + y0; |
| i2 += yn; |
| |
| TETRA_LOOKUP_CLUT(i3, i2, i1, i0); |
| |
| c2 = _mm_sub_ps(c2, c1); |
| c1 = _mm_sub_ps(c1, c3); |
| c3 = _mm_sub_ps(c3, c0); |
| } |
| } else { |
| |
| if (rx >= rz) { // ry > rx && rx >= rz |
| |
| i3 = xn + (i2 = yn); |
| i2 += i0 - y0; |
| i1 = i3 + z0; |
| i3 += zn; |
| |
| TETRA_LOOKUP_CLUT(i3, i2, i1, i0); |
| |
| c3 = _mm_sub_ps(c3, c1); |
| c1 = _mm_sub_ps(c1, c2); |
| c2 = _mm_sub_ps(c2, c0); |
| |
| } else if (ry >= rz) { // ry >= rz && rz > rx |
| |
| i3 = zn + (i2 = yn); |
| i2 += i0 - y0; |
| i1 = i3 + xn; |
| i3 += x0; |
| |
| TETRA_LOOKUP_CLUT(i3, i2, i1, i0); |
| |
| c1 = _mm_sub_ps(c1, c3); |
| c3 = _mm_sub_ps(c3, c2); |
| c2 = _mm_sub_ps(c2, c0); |
| |
| } else { // rz > ry && ry > rx |
| |
| i2 = yn + (i3 = zn); |
| i3 += i0 - z0; |
| i1 = i2 + xn; |
| i2 += x0; |
| |
| TETRA_LOOKUP_CLUT(i3, i2, i1, i0); |
| |
| c1 = _mm_sub_ps(c1, c2); |
| c2 = _mm_sub_ps(c2, c3); |
| c3 = _mm_sub_ps(c3, c0); |
| } |
| } |
| |
| // output.xyz = column_matrix(c1, c2, c3) x r.xyz + c0.xyz |
| |
| c0 = _mm_add_ps(c0, _mm_mul_ps(c1, _mm_set1_ps(rx))); |
| c0 = _mm_add_ps(c0, _mm_mul_ps(c2, _mm_set1_ps(ry))); |
| c0 = _mm_add_ps(c0, _mm_mul_ps(c3, _mm_set1_ps(rz))); |
| |
| // clamp to [0.0..1.0], then scale by 255 |
| |
| c0 = _mm_max_ps(c0, __000); |
| c0 = _mm_min_ps(c0, __one); |
| c0 = _mm_mul_ps(c0, __255); |
| |
| // int(c0) with float rounding, add alpha |
| |
| result = _mm_add_epi32(result, _mm_cvtps_epi32(c0)); |
| |
| // swizzle and repack in result low bytes |
| |
| result = __mm_swizzle_epi32(result, bgra); |
| result = _mm_packus_epi16(result, result); |
| result = _mm_packus_epi16(result, result); |
| |
| // store into uint32_t* pixel destination |
| |
| *(uint32_t *)dest = _mm_cvtsi128_si32(result); |
| dest += 4; |
| } |
| } |