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