diff options
Diffstat (limited to 'libass/ass_bitmap.c')
| -rw-r--r-- | libass/ass_bitmap.c | 720 |
1 files changed, 460 insertions, 260 deletions
diff --git a/libass/ass_bitmap.c b/libass/ass_bitmap.c index 15d583ac48..c7c039ddd5 100644 --- a/libass/ass_bitmap.c +++ b/libass/ass_bitmap.c @@ -1,5 +1,3 @@ -// -*- c-basic-offset: 8; indent-tabs-mode: t -*- -// vim:ts=8:sw=8:noet:ai: /* * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * @@ -27,311 +25,513 @@ #include <ft2build.h> #include FT_GLYPH_H -#include "mputils.h" +#include "ass_utils.h" #include "ass_bitmap.h" -struct ass_synth_priv_s { - int tmp_w, tmp_h; - unsigned short* tmp; +struct ass_synth_priv { + int tmp_w, tmp_h; + unsigned short *tmp; - int g_r; - int g_w; + int g_r; + int g_w; - unsigned *g; - unsigned *gt2; + unsigned *g; + unsigned *gt2; - double radius; + double radius; }; static const unsigned int maxcolor = 255; static const unsigned base = 256; -static int generate_tables(ass_synth_priv_t* priv, double radius) +static int generate_tables(ASS_SynthPriv *priv, double radius) { - double A = log(1.0/base)/(radius*radius*2); - int mx, i; - double volume_diff, volume_factor = 0; - unsigned volume; - - if (priv->radius == radius) - return 0; - else - priv->radius = radius; - - priv->g_r = ceil(radius); - priv->g_w = 2*priv->g_r+1; - - if (priv->g_r) { - priv->g = realloc(priv->g, priv->g_w * sizeof(unsigned)); - priv->gt2 = realloc(priv->gt2, 256 * priv->g_w * sizeof(unsigned)); - if (priv->g==NULL || priv->gt2==NULL) { - return -1; - } - } - - if (priv->g_r) { - // gaussian curve with volume = 256 - for (volume_diff=10000000; volume_diff>0.0000001; volume_diff*=0.5){ - volume_factor+= volume_diff; - volume=0; - for (i = 0; i<priv->g_w; ++i) { - priv->g[i] = (unsigned)(exp(A * (i-priv->g_r)*(i-priv->g_r)) * volume_factor + .5); - volume+= priv->g[i]; - } - if(volume>256) volume_factor-= volume_diff; - } - volume=0; - for (i = 0; i<priv->g_w; ++i) { - priv->g[i] = (unsigned)(exp(A * (i-priv->g_r)*(i-priv->g_r)) * volume_factor + .5); - volume+= priv->g[i]; - } - - // gauss table: - for(mx=0;mx<priv->g_w;mx++){ - for(i=0;i<256;i++){ - priv->gt2[mx+i*priv->g_w] = i*priv->g[mx]; - } - } - } - - return 0; + double A = log(1.0 / base) / (radius * radius * 2); + int mx, i; + double volume_diff, volume_factor = 0; + unsigned volume; + + if (priv->radius == radius) + return 0; + else + priv->radius = radius; + + priv->g_r = ceil(radius); + priv->g_w = 2 * priv->g_r + 1; + + if (priv->g_r) { + priv->g = realloc(priv->g, priv->g_w * sizeof(unsigned)); + priv->gt2 = realloc(priv->gt2, 256 * priv->g_w * sizeof(unsigned)); + if (priv->g == NULL || priv->gt2 == NULL) { + return -1; + } + } + + if (priv->g_r) { + // gaussian curve with volume = 256 + for (volume_diff = 10000000; volume_diff > 0.0000001; + volume_diff *= 0.5) { + volume_factor += volume_diff; + volume = 0; + for (i = 0; i < priv->g_w; ++i) { + priv->g[i] = + (unsigned) (exp(A * (i - priv->g_r) * (i - priv->g_r)) * + volume_factor + .5); + volume += priv->g[i]; + } + if (volume > 256) + volume_factor -= volume_diff; + } + volume = 0; + for (i = 0; i < priv->g_w; ++i) { + priv->g[i] = + (unsigned) (exp(A * (i - priv->g_r) * (i - priv->g_r)) * + volume_factor + .5); + volume += priv->g[i]; + } + + // gauss table: + for (mx = 0; mx < priv->g_w; mx++) { + for (i = 0; i < 256; i++) { + priv->gt2[mx + i * priv->g_w] = i * priv->g[mx]; + } + } + } + + return 0; } -static void resize_tmp(ass_synth_priv_t* priv, int w, int h) +static void resize_tmp(ASS_SynthPriv *priv, int w, int h) { - if (priv->tmp_w >= w && priv->tmp_h >= h) - return; - if (priv->tmp_w == 0) - priv->tmp_w = 64; - if (priv->tmp_h == 0) - priv->tmp_h = 64; - while (priv->tmp_w < w) priv->tmp_w *= 2; - while (priv->tmp_h < h) priv->tmp_h *= 2; - if (priv->tmp) - free(priv->tmp); - priv->tmp = malloc((priv->tmp_w + 1) * priv->tmp_h * sizeof(short)); + if (priv->tmp_w >= w && priv->tmp_h >= h) + return; + if (priv->tmp_w == 0) + priv->tmp_w = 64; + if (priv->tmp_h == 0) + priv->tmp_h = 64; + while (priv->tmp_w < w) + priv->tmp_w *= 2; + while (priv->tmp_h < h) + priv->tmp_h *= 2; + if (priv->tmp) + free(priv->tmp); + priv->tmp = malloc((priv->tmp_w + 1) * priv->tmp_h * sizeof(short)); } -ass_synth_priv_t* ass_synth_init(double radius) +ASS_SynthPriv *ass_synth_init(double radius) { - ass_synth_priv_t* priv = calloc(1, sizeof(ass_synth_priv_t)); - generate_tables(priv, radius); - return priv; + ASS_SynthPriv *priv = calloc(1, sizeof(ASS_SynthPriv)); + generate_tables(priv, radius); + return priv; } -void ass_synth_done(ass_synth_priv_t* priv) +void ass_synth_done(ASS_SynthPriv *priv) { - if (priv->tmp) - free(priv->tmp); - if (priv->g) - free(priv->g); - if (priv->gt2) - free(priv->gt2); - free(priv); + if (priv->tmp) + free(priv->tmp); + if (priv->g) + free(priv->g); + if (priv->gt2) + free(priv->gt2); + free(priv); } -static bitmap_t* alloc_bitmap(int w, int h) +static Bitmap *alloc_bitmap(int w, int h) { - bitmap_t* bm; - bm = calloc(1, sizeof(bitmap_t)); - bm->buffer = malloc(w*h); - bm->w = w; - bm->h = h; - bm->left = bm->top = 0; - return bm; + Bitmap *bm; + bm = calloc(1, sizeof(Bitmap)); + bm->buffer = malloc(w * h); + bm->w = w; + bm->h = h; + bm->left = bm->top = 0; + return bm; } -void ass_free_bitmap(bitmap_t* bm) +void ass_free_bitmap(Bitmap *bm) { - if (bm) { - if (bm->buffer) free(bm->buffer); - free(bm); - } + if (bm) { + if (bm->buffer) + free(bm->buffer); + free(bm); + } } -static bitmap_t* copy_bitmap(const bitmap_t* src) +static Bitmap *copy_bitmap(const Bitmap *src) { - bitmap_t* dst = alloc_bitmap(src->w, src->h); - dst->left = src->left; - dst->top = src->top; - memcpy(dst->buffer, src->buffer, src->w * src->h); - return dst; + Bitmap *dst = alloc_bitmap(src->w, src->h); + dst->left = src->left; + dst->top = src->top; + memcpy(dst->buffer, src->buffer, src->w * src->h); + return dst; } -static int check_glyph_area(FT_Glyph glyph) +static int check_glyph_area(ASS_Library *library, FT_Glyph glyph) { - FT_BBox bbox; - long long dx, dy; - FT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_TRUNCATE, &bbox); - dx = bbox.xMax - bbox.xMin; - dy = bbox.yMax - bbox.yMin; - if (dx * dy > 8000000) { - mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_GlyphBBoxTooLarge, (int)dx, (int)dy); - return 1; - } else - return 0; + FT_BBox bbox; + long long dx, dy; + FT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_TRUNCATE, &bbox); + dx = bbox.xMax - bbox.xMin; + dy = bbox.yMax - bbox.yMin; + if (dx * dy > 8000000) { + ass_msg(library, MSGL_WARN, "Glyph bounding box too large: %dx%dpx", + (int) dx, (int) dy); + return 1; + } else + return 0; } -static bitmap_t* glyph_to_bitmap_internal(FT_Glyph glyph, int bord) +static Bitmap *glyph_to_bitmap_internal(ASS_Library *library, + FT_Glyph glyph, int bord) { - FT_BitmapGlyph bg; - FT_Bitmap* bit; - bitmap_t* bm; - int w, h; - unsigned char* src; - unsigned char* dst; - int i; - int error; - - if (check_glyph_area(glyph)) - return 0; - error = FT_Glyph_To_Bitmap(&glyph, FT_RENDER_MODE_NORMAL, 0, 0); - if (error) { - mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FT_Glyph_To_BitmapError, error); - return 0; - } - - bg = (FT_BitmapGlyph)glyph; - bit = &(bg->bitmap); - if (bit->pixel_mode != FT_PIXEL_MODE_GRAY) { - mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_UnsupportedPixelMode, (int)(bit->pixel_mode)); - FT_Done_Glyph(glyph); - return 0; - } - - w = bit->width; - h = bit->rows; - bm = alloc_bitmap(w + 2*bord, h + 2*bord); - memset(bm->buffer, 0, bm->w * bm->h); - bm->left = bg->left - bord; - bm->top = - bg->top - bord; - - src = bit->buffer; - dst = bm->buffer + bord + bm->w * bord; - for (i = 0; i < h; ++i) { - memcpy(dst, src, w); - src += bit->pitch; - dst += bm->w; - } - - FT_Done_Glyph(glyph); - return bm; + FT_BitmapGlyph bg; + FT_Bitmap *bit; + Bitmap *bm; + int w, h; + unsigned char *src; + unsigned char *dst; + int i; + int error; + + if (check_glyph_area(library, glyph)) + return 0; + error = FT_Glyph_To_Bitmap(&glyph, FT_RENDER_MODE_NORMAL, 0, 0); + if (error) { + ass_msg(library, MSGL_WARN, "FT_Glyph_To_Bitmap error %d", + error); + return 0; + } + + bg = (FT_BitmapGlyph) glyph; + bit = &(bg->bitmap); + if (bit->pixel_mode != FT_PIXEL_MODE_GRAY) { + ass_msg(library, MSGL_WARN, "Unsupported pixel mode: %d", + (int) (bit->pixel_mode)); + FT_Done_Glyph(glyph); + return 0; + } + + w = bit->width; + h = bit->rows; + bm = alloc_bitmap(w + 2 * bord, h + 2 * bord); + memset(bm->buffer, 0, bm->w * bm->h); + bm->left = bg->left - bord; + bm->top = -bg->top - bord; + + src = bit->buffer; + dst = bm->buffer + bord + bm->w * bord; + for (i = 0; i < h; ++i) { + memcpy(dst, src, w); + src += bit->pitch; + dst += bm->w; + } + + FT_Done_Glyph(glyph); + return bm; } /** - * \brief fix outline bitmap and generate shadow bitmap - * Two things are done here: - * 1. Glyph bitmap is subtracted from outline bitmap. This way looks much better in some cases. - * 2. Shadow bitmap is created as a sum of glyph and outline bitmaps. + * \brief fix outline bitmap + * + * The glyph bitmap is subtracted from outline bitmap. This way looks much + * better in some cases. + */ +static void fix_outline(Bitmap *bm_g, Bitmap *bm_o) +{ + int x, y; + const int l = bm_o->left > bm_g->left ? bm_o->left : bm_g->left; + const int t = bm_o->top > bm_g->top ? bm_o->top : bm_g->top; + const int r = + bm_o->left + bm_o->w < + bm_g->left + bm_g->w ? bm_o->left + bm_o->w : bm_g->left + bm_g->w; + const int b = + bm_o->top + bm_o->h < + bm_g->top + bm_g->h ? bm_o->top + bm_o->h : bm_g->top + bm_g->h; + + unsigned char *g = + bm_g->buffer + (t - bm_g->top) * bm_g->w + (l - bm_g->left); + unsigned char *o = + bm_o->buffer + (t - bm_o->top) * bm_o->w + (l - bm_o->left); + + for (y = 0; y < b - t; ++y) { + for (x = 0; x < r - l; ++x) { + unsigned char c_g, c_o; + c_g = g[x]; + c_o = o[x]; + o[x] = (c_o > c_g) ? c_o - (c_g / 2) : 0; + } + g += bm_g->w; + o += bm_o->w; + } +} + +/** + * \brief Shift a bitmap by the fraction of a pixel in x and y direction + * expressed in 26.6 fixed point + */ +static void shift_bitmap(unsigned char *buf, int w, int h, int shift_x, + int shift_y) +{ + int x, y, b; + + // Shift in x direction + if (shift_x > 0) { + for (y = 0; y < h; y++) { + for (x = w - 1; x > 0; x--) { + b = (buf[x + y * w - 1] * shift_x) >> 6; + buf[x + y * w - 1] -= b; + buf[x + y * w] += b; + } + } + } else if (shift_x < 0) { + shift_x = -shift_x; + for (y = 0; y < h; y++) { + for (x = 0; x < w - 1; x++) { + b = (buf[x + y * w + 1] * shift_x) >> 6; + buf[x + y * w + 1] -= b; + buf[x + y * w] += b; + } + } + } + + // Shift in y direction + if (shift_y > 0) { + for (x = 0; x < w; x++) { + for (y = h - 1; y > 0; y--) { + b = (buf[x + (y - 1) * w] * shift_y) >> 6; + buf[x + (y - 1) * w] -= b; + buf[x + y * w] += b; + } + } + } else if (shift_y < 0) { + shift_y = -shift_y; + for (x = 0; x < w; x++) { + for (y = 0; y < h - 1; y++) { + b = (buf[x + (y + 1) * w] * shift_y) >> 6; + buf[x + (y + 1) * w] -= b; + buf[x + y * w] += b; + } + } + } +} + +/* + * Gaussian blur. An fast pure C implementation from MPlayer. */ -static bitmap_t* fix_outline_and_shadow(bitmap_t* bm_g, bitmap_t* bm_o) +static void ass_gauss_blur(unsigned char *buffer, unsigned short *tmp2, + int width, int height, int stride, int *m2, + int r, int mwidth) { - int x, y; - const int l = bm_o->left > bm_g->left ? bm_o->left : bm_g->left; - const int t = bm_o->top > bm_g->top ? bm_o->top : bm_g->top; - const int r = bm_o->left + bm_o->w < bm_g->left + bm_g->w ? bm_o->left + bm_o->w : bm_g->left + bm_g->w; - const int b = bm_o->top + bm_o->h < bm_g->top + bm_g->h ? bm_o->top + bm_o->h : bm_g->top + bm_g->h; - - bitmap_t* bm_s = copy_bitmap(bm_o); - - unsigned char* g = bm_g->buffer + (t - bm_g->top) * bm_g->w + (l - bm_g->left); - unsigned char* o = bm_o->buffer + (t - bm_o->top) * bm_o->w + (l - bm_o->left); - unsigned char* s = bm_s->buffer + (t - bm_s->top) * bm_s->w + (l - bm_s->left); - - for (y = 0; y < b - t; ++y) { - for (x = 0; x < r - l; ++x) { - unsigned char c_g, c_o; - c_g = g[x]; - c_o = o[x]; - o[x] = (c_o > c_g) ? c_o - (c_g/2) : 0; - s[x] = (c_o < 0xFF - c_g) ? c_o + c_g : 0xFF; - } - g += bm_g->w; - o += bm_o->w; - s += bm_s->w; - } - - assert(bm_s); - return bm_s; + + int x, y; + + unsigned char *s = buffer; + unsigned short *t = tmp2 + 1; + for (y = 0; y < height; y++) { + memset(t - 1, 0, (width + 1) * sizeof(short)); + + for (x = 0; x < r; x++) { + const int src = s[x]; + if (src) { + register unsigned short *dstp = t + x - r; + int mx; + unsigned *m3 = (unsigned *) (m2 + src * mwidth); + for (mx = r - x; mx < mwidth; mx++) { + dstp[mx] += m3[mx]; + } + } + } + + for (; x < width - r; x++) { + const int src = s[x]; + if (src) { + register unsigned short *dstp = t + x - r; + int mx; + unsigned *m3 = (unsigned *) (m2 + src * mwidth); + for (mx = 0; mx < mwidth; mx++) { + dstp[mx] += m3[mx]; + } + } + } + + for (; x < width; x++) { + const int src = s[x]; + if (src) { + register unsigned short *dstp = t + x - r; + int mx; + const int x2 = r + width - x; + unsigned *m3 = (unsigned *) (m2 + src * mwidth); + for (mx = 0; mx < x2; mx++) { + dstp[mx] += m3[mx]; + } + } + } + + s += stride; + t += width + 1; + } + + t = tmp2; + for (x = 0; x < width; x++) { + for (y = 0; y < r; y++) { + unsigned short *srcp = t + y * (width + 1) + 1; + int src = *srcp; + if (src) { + register unsigned short *dstp = srcp - 1 + width + 1; + const int src2 = (src + 128) >> 8; + unsigned *m3 = (unsigned *) (m2 + src2 * mwidth); + + int mx; + *srcp = 128; + for (mx = r - 1; mx < mwidth; mx++) { + *dstp += m3[mx]; + dstp += width + 1; + } + } + } + for (; y < height - r; y++) { + unsigned short *srcp = t + y * (width + 1) + 1; + int src = *srcp; + if (src) { + register unsigned short *dstp = srcp - 1 - r * (width + 1); + const int src2 = (src + 128) >> 8; + unsigned *m3 = (unsigned *) (m2 + src2 * mwidth); + + int mx; + *srcp = 128; + for (mx = 0; mx < mwidth; mx++) { + *dstp += m3[mx]; + dstp += width + 1; + } + } + } + for (; y < height; y++) { + unsigned short *srcp = t + y * (width + 1) + 1; + int src = *srcp; + if (src) { + const int y2 = r + height - y; + register unsigned short *dstp = srcp - 1 - r * (width + 1); + const int src2 = (src + 128) >> 8; + unsigned *m3 = (unsigned *) (m2 + src2 * mwidth); + + int mx; + *srcp = 128; + for (mx = 0; mx < y2; mx++) { + *dstp += m3[mx]; + dstp += width + 1; + } + } + } + t++; + } + + t = tmp2; + s = buffer; + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + s[x] = t[x] >> 8; + } + s += stride; + t += width + 1; + } } /** * \brief Blur with [[1,2,1]. [2,4,2], [1,2,1]] kernel * This blur is the same as the one employed by vsfilter. */ -static void be_blur(unsigned char *buf, int w, int h) { - unsigned int x, y; - unsigned int old_sum, new_sum; - - for (y=0; y<h; y++) { - old_sum = 2 * buf[y*w]; - for (x=0; x<w-1; x++) { - new_sum = buf[y*w+x] + buf[y*w+x+1]; - buf[y*w+x] = (old_sum + new_sum) >> 2; - old_sum = new_sum; - } - } - - for (x=0; x<w; x++) { - old_sum = 2 * buf[x]; - for (y=0; y<h-1; y++) { - new_sum = buf[y*w+x] + buf[(y+1)*w+x]; - buf[y*w+x] = (old_sum + new_sum) >> 2; - old_sum = new_sum; - } - } +static void be_blur(unsigned char *buf, int w, int h) +{ + unsigned int x, y; + unsigned int old_sum, new_sum; + + for (y = 0; y < h; y++) { + old_sum = 2 * buf[y * w]; + for (x = 0; x < w - 1; x++) { + new_sum = buf[y * w + x] + buf[y * w + x + 1]; + buf[y * w + x] = (old_sum + new_sum) >> 2; + old_sum = new_sum; + } + } + + for (x = 0; x < w; x++) { + old_sum = 2 * buf[x]; + for (y = 0; y < h - 1; y++) { + new_sum = buf[y * w + x] + buf[(y + 1) * w + x]; + buf[y * w + x] = (old_sum + new_sum) >> 2; + old_sum = new_sum; + } + } } -int glyph_to_bitmap(ass_synth_priv_t* priv_blur, - FT_Glyph glyph, FT_Glyph outline_glyph, bitmap_t** bm_g, - bitmap_t** bm_o, bitmap_t** bm_s, int be, double blur_radius) +int glyph_to_bitmap(ASS_Library *library, ASS_SynthPriv *priv_blur, + FT_Glyph glyph, FT_Glyph outline_glyph, + Bitmap **bm_g, Bitmap **bm_o, Bitmap **bm_s, + int be, double blur_radius, FT_Vector shadow_offset, + int border_style) { - int bord = be ? (be/4+1) : 0; - blur_radius *= 2; - bord = (blur_radius > 0.0) ? blur_radius : bord; - - assert(bm_g && bm_o && bm_s); - - *bm_g = *bm_o = *bm_s = 0; - - if (glyph) - *bm_g = glyph_to_bitmap_internal(glyph, bord); - if (!*bm_g) - return 1; - - if (outline_glyph) { - *bm_o = glyph_to_bitmap_internal(outline_glyph, bord); - if (!*bm_o) { - ass_free_bitmap(*bm_g); - return 1; - } - } - if (*bm_o) - resize_tmp(priv_blur, (*bm_o)->w, (*bm_o)->h); - resize_tmp(priv_blur, (*bm_g)->w, (*bm_g)->h); - - if (be) { - while (be--) { - if (*bm_o) - be_blur((*bm_o)->buffer, (*bm_o)->w, (*bm_o)->h); - else - be_blur((*bm_g)->buffer, (*bm_g)->w, (*bm_g)->h); - } - } else { - if (blur_radius > 0.0) { - generate_tables(priv_blur, blur_radius); - if (*bm_o) - blur((*bm_o)->buffer, priv_blur->tmp, (*bm_o)->w, (*bm_o)->h, (*bm_o)->w, (int*)priv_blur->gt2, priv_blur->g_r, priv_blur->g_w); - else - blur((*bm_g)->buffer, priv_blur->tmp, (*bm_g)->w, (*bm_g)->h, (*bm_g)->w, (int*)priv_blur->gt2, priv_blur->g_r, priv_blur->g_w); - } - } - if (*bm_o) - *bm_s = fix_outline_and_shadow(*bm_g, *bm_o); - else - *bm_s = copy_bitmap(*bm_g); - - assert(bm_s); - return 0; + blur_radius *= 2; + int bbord = be > 0 ? sqrt(2 * be) : 0; + int gbord = blur_radius > 0.0 ? blur_radius + 1 : 0; + int bord = FFMAX(bbord, gbord); + if (bord == 0 && (shadow_offset.x || shadow_offset.y)) + bord = 1; + + assert(bm_g && bm_o && bm_s); + + *bm_g = *bm_o = *bm_s = 0; + + if (glyph) + *bm_g = glyph_to_bitmap_internal(library, glyph, bord); + if (!*bm_g) + return 1; + + if (outline_glyph) { + *bm_o = glyph_to_bitmap_internal(library, outline_glyph, bord); + if (!*bm_o) { + return 1; + } + } + + // Apply box blur (multiple passes, if requested) + while (be--) { + if (*bm_o) + be_blur((*bm_o)->buffer, (*bm_o)->w, (*bm_o)->h); + else + be_blur((*bm_g)->buffer, (*bm_g)->w, (*bm_g)->h); + } + + // Apply gaussian blur + if (blur_radius > 0.0) { + if (*bm_o) + resize_tmp(priv_blur, (*bm_o)->w, (*bm_o)->h); + else + resize_tmp(priv_blur, (*bm_g)->w, (*bm_g)->h); + generate_tables(priv_blur, blur_radius); + if (*bm_o) + ass_gauss_blur((*bm_o)->buffer, priv_blur->tmp, + (*bm_o)->w, (*bm_o)->h, (*bm_o)->w, + (int *) priv_blur->gt2, priv_blur->g_r, + priv_blur->g_w); + else + ass_gauss_blur((*bm_g)->buffer, priv_blur->tmp, + (*bm_g)->w, (*bm_g)->h, (*bm_g)->w, + (int *) priv_blur->gt2, priv_blur->g_r, + priv_blur->g_w); + } + + // Create shadow and fix outline as needed + if (*bm_o && border_style != 3) { + *bm_s = copy_bitmap(*bm_o); + fix_outline(*bm_g, *bm_o); + } else if (*bm_o) { + *bm_s = copy_bitmap(*bm_o); + } else + *bm_s = copy_bitmap(*bm_g); + + assert(bm_s); + + shift_bitmap((*bm_s)->buffer, (*bm_s)->w,(*bm_s)->h, + shadow_offset.x, shadow_offset.y); + + return 0; } - |