| /* |
| * Software equalizer (brightness, contrast, gamma, saturation) |
| * |
| * Hampa Hug <hampa@hampa.ch> (original LUT gamma/contrast/brightness filter) |
| * Daniel Moreno <comac@comac.darktech.org> (saturation, R/G/B gamma support) |
| * Richard Felker (original MMX contrast/brightness code (vf_eq.c)) |
| * Michael Niedermayer <michalni@gmx.at> (LUT16) |
| * |
| * This file is part of MPlayer. |
| * |
| * MPlayer is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * MPlayer is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with MPlayer; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <math.h> |
| #include <inttypes.h> |
| |
| #include "config.h" |
| #include "mp_msg.h" |
| #include "cpudetect.h" |
| |
| #include "img_format.h" |
| #include "mp_image.h" |
| #include "vf.h" |
| |
| #define LUT16 |
| |
| /* Per channel parameters */ |
| typedef struct eq2_param_t { |
| unsigned char lut[256]; |
| #ifdef LUT16 |
| uint16_t lut16[256*256]; |
| #endif |
| int lut_clean; |
| |
| void (*adjust) (struct eq2_param_t *par, unsigned char *dst, unsigned char *src, |
| unsigned w, unsigned h, unsigned dstride, unsigned sstride); |
| |
| double c; |
| double b; |
| double g; |
| double w; |
| } eq2_param_t; |
| |
| typedef struct vf_priv_s { |
| eq2_param_t param[3]; |
| |
| double contrast; |
| double brightness; |
| double saturation; |
| |
| double gamma; |
| double gamma_weight; |
| double rgamma; |
| double ggamma; |
| double bgamma; |
| |
| unsigned buf_w[3]; |
| unsigned buf_h[3]; |
| unsigned char *buf[3]; |
| } vf_eq2_t; |
| |
| |
| static |
| void create_lut (eq2_param_t *par) |
| { |
| unsigned i; |
| double g, v; |
| double lw, gw; |
| |
| g = par->g; |
| gw = par->w; |
| lw = 1.0 - gw; |
| |
| if ((g < 0.001) || (g > 1000.0)) { |
| g = 1.0; |
| } |
| |
| g = 1.0 / g; |
| |
| for (i = 0; i < 256; i++) { |
| v = (double) i / 255.0; |
| v = par->c * (v - 0.5) + 0.5 + par->b; |
| |
| if (v <= 0.0) { |
| par->lut[i] = 0; |
| } |
| else { |
| v = v*lw + pow(v, g)*gw; |
| |
| if (v >= 1.0) { |
| par->lut[i] = 255; |
| } |
| else { |
| par->lut[i] = (unsigned char) (256.0 * v); |
| } |
| } |
| } |
| |
| #ifdef LUT16 |
| for(i=0; i<256*256; i++){ |
| par->lut16[i]= par->lut[i&0xFF] + (par->lut[i>>8]<<8); |
| } |
| #endif |
| |
| par->lut_clean = 1; |
| } |
| |
| #if HAVE_MMX |
| static |
| void affine_1d_MMX (eq2_param_t *par, unsigned char *dst, unsigned char *src, |
| unsigned w, unsigned h, unsigned dstride, unsigned sstride) |
| { |
| unsigned i; |
| int contrast, brightness; |
| unsigned dstep, sstep; |
| int pel; |
| short brvec[4]; |
| short contvec[4]; |
| |
| // printf("\nmmx: src=%p dst=%p w=%d h=%d ds=%d ss=%d\n",src,dst,w,h,dstride,sstride); |
| |
| contrast = (int) (par->c * 256 * 16); |
| brightness = ((int) (100.0 * par->b + 100.0) * 511) / 200 - 128 - contrast / 32; |
| |
| brvec[0] = brvec[1] = brvec[2] = brvec[3] = brightness; |
| contvec[0] = contvec[1] = contvec[2] = contvec[3] = contrast; |
| |
| sstep = sstride - w; |
| dstep = dstride - w; |
| |
| while (h-- > 0) { |
| __asm__ volatile ( |
| "movq (%5), %%mm3 \n\t" |
| "movq (%6), %%mm4 \n\t" |
| "pxor %%mm0, %%mm0 \n\t" |
| "movl %4, %%eax\n\t" |
| ASMALIGN(4) |
| "1: \n\t" |
| "movq (%0), %%mm1 \n\t" |
| "movq (%0), %%mm2 \n\t" |
| "punpcklbw %%mm0, %%mm1 \n\t" |
| "punpckhbw %%mm0, %%mm2 \n\t" |
| "psllw $4, %%mm1 \n\t" |
| "psllw $4, %%mm2 \n\t" |
| "pmulhw %%mm4, %%mm1 \n\t" |
| "pmulhw %%mm4, %%mm2 \n\t" |
| "paddw %%mm3, %%mm1 \n\t" |
| "paddw %%mm3, %%mm2 \n\t" |
| "packuswb %%mm2, %%mm1 \n\t" |
| "add $8, %0 \n\t" |
| "movq %%mm1, (%1) \n\t" |
| "add $8, %1 \n\t" |
| "decl %%eax \n\t" |
| "jnz 1b \n\t" |
| : "=r" (src), "=r" (dst) |
| : "0" (src), "1" (dst), "r" (w >> 3), "r" (brvec), "r" (contvec) |
| : "%eax" |
| ); |
| |
| for (i = w & 7; i > 0; i--) { |
| pel = ((*src++ * contrast) >> 12) + brightness; |
| if (pel & 768) { |
| pel = (-pel) >> 31; |
| } |
| *dst++ = pel; |
| } |
| |
| src += sstep; |
| dst += dstep; |
| } |
| |
| __asm__ volatile ( "emms \n\t" ::: "memory" ); |
| } |
| #endif |
| |
| static |
| void apply_lut (eq2_param_t *par, unsigned char *dst, unsigned char *src, |
| unsigned w, unsigned h, unsigned dstride, unsigned sstride) |
| { |
| unsigned i, j, w2; |
| unsigned char *lut; |
| uint16_t *lut16; |
| |
| if (!par->lut_clean) { |
| create_lut (par); |
| } |
| |
| lut = par->lut; |
| #ifdef LUT16 |
| lut16 = par->lut16; |
| w2= (w>>3)<<2; |
| for (j = 0; j < h; j++) { |
| uint16_t *src16= (uint16_t*)src; |
| uint16_t *dst16= (uint16_t*)dst; |
| for (i = 0; i < w2; i+=4) { |
| dst16[i+0] = lut16[src16[i+0]]; |
| dst16[i+1] = lut16[src16[i+1]]; |
| dst16[i+2] = lut16[src16[i+2]]; |
| dst16[i+3] = lut16[src16[i+3]]; |
| } |
| i <<= 1; |
| #else |
| w2= (w>>3)<<3; |
| for (j = 0; j < h; j++) { |
| for (i = 0; i < w2; i+=8) { |
| dst[i+0] = lut[src[i+0]]; |
| dst[i+1] = lut[src[i+1]]; |
| dst[i+2] = lut[src[i+2]]; |
| dst[i+3] = lut[src[i+3]]; |
| dst[i+4] = lut[src[i+4]]; |
| dst[i+5] = lut[src[i+5]]; |
| dst[i+6] = lut[src[i+6]]; |
| dst[i+7] = lut[src[i+7]]; |
| } |
| #endif |
| for (; i < w; i++) { |
| dst[i] = lut[src[i]]; |
| } |
| |
| src += sstride; |
| dst += dstride; |
| } |
| } |
| |
| static |
| int put_image (vf_instance_t *vf, mp_image_t *src, double pts) |
| { |
| unsigned i; |
| vf_eq2_t *eq2; |
| mp_image_t *dst; |
| unsigned long img_n,img_c; |
| |
| eq2 = vf->priv; |
| |
| if ((eq2->buf_w[0] != src->w) || (eq2->buf_h[0] != src->h)) { |
| eq2->buf_w[0] = src->w; |
| eq2->buf_h[0] = src->h; |
| eq2->buf_w[1] = eq2->buf_w[2] = src->w >> src->chroma_x_shift; |
| eq2->buf_h[1] = eq2->buf_h[2] = src->h >> src->chroma_y_shift; |
| img_n = eq2->buf_w[0]*eq2->buf_h[0]; |
| if(src->num_planes>1){ |
| img_c = eq2->buf_w[1]*eq2->buf_h[1]; |
| eq2->buf[0] = realloc (eq2->buf[0], img_n + 2*img_c); |
| eq2->buf[1] = eq2->buf[0] + img_n; |
| eq2->buf[2] = eq2->buf[1] + img_c; |
| } else |
| eq2->buf[0] = realloc (eq2->buf[0], img_n); |
| } |
| |
| dst = vf_get_image (vf->next, src->imgfmt, MP_IMGTYPE_EXPORT, 0, src->w, src->h); |
| |
| for (i = 0; i < ((src->num_planes>1)?3:1); i++) { |
| if (eq2->param[i].adjust != NULL) { |
| dst->planes[i] = eq2->buf[i]; |
| dst->stride[i] = eq2->buf_w[i]; |
| |
| eq2->param[i].adjust (&eq2->param[i], dst->planes[i], src->planes[i], |
| eq2->buf_w[i], eq2->buf_h[i], dst->stride[i], src->stride[i]); |
| } |
| else { |
| dst->planes[i] = src->planes[i]; |
| dst->stride[i] = src->stride[i]; |
| } |
| } |
| |
| return vf_next_put_image (vf, dst, pts); |
| } |
| |
| static |
| void check_values (eq2_param_t *par) |
| { |
| /* yuck! floating point comparisons... */ |
| |
| if ((par->c == 1.0) && (par->b == 0.0) && (par->g == 1.0)) { |
| par->adjust = NULL; |
| } |
| #if HAVE_MMX |
| else if (par->g == 1.0 && gCpuCaps.hasMMX) { |
| par->adjust = &affine_1d_MMX; |
| } |
| #endif |
| else { |
| par->adjust = &apply_lut; |
| } |
| } |
| |
| static |
| void print_values (vf_eq2_t *eq2) |
| { |
| mp_msg (MSGT_VFILTER, MSGL_V, "vf_eq2: c=%.2f b=%.2f g=%.4f s=%.2f \n", |
| eq2->contrast, eq2->brightness, eq2->gamma, eq2->saturation |
| ); |
| } |
| |
| static |
| void set_contrast (vf_eq2_t *eq2, double c) |
| { |
| eq2->contrast = c; |
| eq2->param[0].c = c; |
| eq2->param[0].lut_clean = 0; |
| check_values (&eq2->param[0]); |
| print_values (eq2); |
| } |
| |
| static |
| void set_brightness (vf_eq2_t *eq2, double b) |
| { |
| eq2->brightness = b; |
| eq2->param[0].b = b; |
| eq2->param[0].lut_clean = 0; |
| check_values (&eq2->param[0]); |
| print_values (eq2); |
| } |
| |
| static |
| void set_gamma (vf_eq2_t *eq2, double g) |
| { |
| eq2->gamma = g; |
| |
| eq2->param[0].g = eq2->gamma * eq2->ggamma; |
| eq2->param[1].g = sqrt (eq2->bgamma / eq2->ggamma); |
| eq2->param[2].g = sqrt (eq2->rgamma / eq2->ggamma); |
| eq2->param[0].w = eq2->param[1].w = eq2->param[2].w = eq2->gamma_weight; |
| |
| eq2->param[0].lut_clean = 0; |
| eq2->param[1].lut_clean = 0; |
| eq2->param[2].lut_clean = 0; |
| |
| check_values (&eq2->param[0]); |
| check_values (&eq2->param[1]); |
| check_values (&eq2->param[2]); |
| |
| print_values (eq2); |
| } |
| |
| static |
| void set_saturation (vf_eq2_t *eq2, double s) |
| { |
| eq2->saturation = s; |
| |
| eq2->param[1].c = s; |
| eq2->param[2].c = s; |
| |
| eq2->param[1].lut_clean = 0; |
| eq2->param[2].lut_clean = 0; |
| |
| check_values (&eq2->param[1]); |
| check_values (&eq2->param[2]); |
| |
| print_values (eq2); |
| } |
| |
| static |
| int control (vf_instance_t *vf, int request, void *data) |
| { |
| vf_equalizer_t *eq; |
| |
| switch (request) { |
| case VFCTRL_SET_EQUALIZER: |
| eq = (vf_equalizer_t *) data; |
| |
| if (strcmp (eq->item, "gamma") == 0) { |
| set_gamma (vf->priv, exp (log (8.0) * eq->value / 100.0)); |
| return CONTROL_TRUE; |
| } |
| else if (strcmp (eq->item, "contrast") == 0) { |
| set_contrast (vf->priv, (1.0 / 100.0) * (eq->value + 100)); |
| return CONTROL_TRUE; |
| } |
| else if (strcmp (eq->item, "brightness") == 0) { |
| set_brightness (vf->priv, (1.0 / 100.0) * eq->value); |
| return CONTROL_TRUE; |
| } |
| else if (strcmp (eq->item, "saturation") == 0) { |
| set_saturation (vf->priv, (double) (eq->value + 100) / 100.0); |
| return CONTROL_TRUE; |
| } |
| break; |
| |
| case VFCTRL_GET_EQUALIZER: |
| eq = (vf_equalizer_t *) data; |
| if (strcmp (eq->item, "gamma") == 0) { |
| eq->value = (int) (100.0 * log (vf->priv->gamma) / log (8.0)); |
| return CONTROL_TRUE; |
| } |
| else if (strcmp (eq->item, "contrast") == 0) { |
| eq->value = (int) (100.0 * vf->priv->contrast) - 100; |
| return CONTROL_TRUE; |
| } |
| else if (strcmp (eq->item, "brightness") == 0) { |
| eq->value = (int) (100.0 * vf->priv->brightness); |
| return CONTROL_TRUE; |
| } |
| else if (strcmp (eq->item, "saturation") == 0) { |
| eq->value = (int) (100.0 * vf->priv->saturation) - 100; |
| return CONTROL_TRUE; |
| } |
| break; |
| } |
| |
| return vf_next_control (vf, request, data); |
| } |
| |
| static |
| int query_format (vf_instance_t *vf, unsigned fmt) |
| { |
| switch (fmt) { |
| case IMGFMT_YVU9: |
| case IMGFMT_IF09: |
| case IMGFMT_YV12: |
| case IMGFMT_I420: |
| case IMGFMT_IYUV: |
| case IMGFMT_Y800: |
| case IMGFMT_Y8: |
| case IMGFMT_444P: |
| case IMGFMT_422P: |
| case IMGFMT_411P: |
| return vf_next_query_format (vf, fmt); |
| } |
| |
| return 0; |
| } |
| |
| static |
| void uninit (vf_instance_t *vf) |
| { |
| if (vf->priv != NULL) { |
| free (vf->priv->buf[0]); |
| free (vf->priv); |
| } |
| } |
| |
| static |
| int vf_open(vf_instance_t *vf, char *args) |
| { |
| unsigned i; |
| vf_eq2_t *eq2; |
| double par[8]; |
| |
| vf->control = control; |
| vf->query_format = query_format; |
| vf->put_image = put_image; |
| vf->uninit = uninit; |
| |
| vf->priv = malloc (sizeof (vf_eq2_t)); |
| eq2 = vf->priv; |
| |
| for (i = 0; i < 3; i++) { |
| eq2->buf[i] = NULL; |
| eq2->buf_w[i] = 0; |
| eq2->buf_h[i] = 0; |
| |
| eq2->param[i].adjust = NULL; |
| eq2->param[i].c = 1.0; |
| eq2->param[i].b = 0.0; |
| eq2->param[i].g = 1.0; |
| eq2->param[i].lut_clean = 0; |
| } |
| |
| eq2->contrast = 1.0; |
| eq2->brightness = 0.0; |
| eq2->saturation = 1.0; |
| |
| eq2->gamma = 1.0; |
| eq2->gamma_weight = 1.0; |
| eq2->rgamma = 1.0; |
| eq2->ggamma = 1.0; |
| eq2->bgamma = 1.0; |
| |
| if (args != NULL) { |
| par[0] = 1.0; |
| par[1] = 1.0; |
| par[2] = 0.0; |
| par[3] = 1.0; |
| par[4] = 1.0; |
| par[5] = 1.0; |
| par[6] = 1.0; |
| par[7] = 1.0; |
| sscanf (args, "%lf:%lf:%lf:%lf:%lf:%lf:%lf:%lf", |
| par, par + 1, par + 2, par + 3, par + 4, par + 5, par + 6, par + 7 |
| ); |
| |
| eq2->rgamma = par[4]; |
| eq2->ggamma = par[5]; |
| eq2->bgamma = par[6]; |
| eq2->gamma_weight = par[7]; |
| |
| set_gamma (eq2, par[0]); |
| set_contrast (eq2, par[1]); |
| set_brightness (eq2, par[2]); |
| set_saturation (eq2, par[3]); |
| } |
| |
| return 1; |
| } |
| |
| const vf_info_t vf_info_eq2 = { |
| "Software equalizer", |
| "eq2", |
| "Hampa Hug, Daniel Moreno, Richard Felker", |
| "", |
| &vf_open, |
| NULL |
| }; |