diff options
Diffstat (limited to 'w3mimg/fb/fb_gdkpixbuf.c')
| -rw-r--r-- | w3mimg/fb/fb_gdkpixbuf.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/w3mimg/fb/fb_gdkpixbuf.c b/w3mimg/fb/fb_gdkpixbuf.c new file mode 100644 index 0000000..e615da6 --- /dev/null +++ b/w3mimg/fb/fb_gdkpixbuf.c @@ -0,0 +1,209 @@ +/* $Id: fb_gdkpixbuf.c,v 1.16 2003/06/13 15:03:35 ukai Exp $ */ +/************************************************************************** + fb_gdkpixbuf.c 0.3 Copyright (C) 2002, hito + **************************************************************************/ + +#include <gdk-pixbuf/gdk-pixbuf.h> +#include "fb.h" +#include "fb_img.h" + +static void draw(FB_IMAGE * img, int bg, int x, int y, int w, int h, + GdkPixbuf * pixbuf); +static GdkPixbuf *resize_image(GdkPixbuf * pixbuf, int width, int height); + +static void +get_animation_size(GdkPixbufAnimation * animation, int *w, int *h, int *delay) +{ + GList *frames; + int iw, ih, n, i, d = -1; + + frames = gdk_pixbuf_animation_get_frames(animation); + n = gdk_pixbuf_animation_get_num_frames(animation); + *w = gdk_pixbuf_animation_get_width(animation); + *h = gdk_pixbuf_animation_get_height(animation); + for (i = 0; i < n; i++) { + GdkPixbufFrame *frame; + GdkPixbuf *pixbuf; + int tmp; + + frame = (GdkPixbufFrame *) g_list_nth_data(frames, i); + tmp = gdk_pixbuf_frame_get_delay_time(frame); + if (tmp > d) + d = tmp; + pixbuf = gdk_pixbuf_frame_get_pixbuf(frame); + iw = gdk_pixbuf_frame_get_x_offset(frame) + + gdk_pixbuf_get_width(pixbuf); + ih = gdk_pixbuf_frame_get_y_offset(frame) + + gdk_pixbuf_get_height(pixbuf); + if (iw > *w) + *w = iw; + if (ih > *h) + *h = ih; + } + if (delay) + *delay = d; +} + +int +get_image_size(char *filename, int *w, int *h) +{ + GdkPixbufAnimation *animation; + if (filename == NULL) + return 1; + animation = gdk_pixbuf_animation_new_from_file(filename); + if (animation == NULL) + return 1; + get_animation_size(animation, w, h, NULL); + gdk_pixbuf_animation_unref(animation); + return 0; +} + +FB_IMAGE ** +fb_image_load(char *filename, int w, int h, int max_anim) +{ + GdkPixbufAnimation *animation; + GList *frames; + double ratio_w, ratio_h; + int n, i, j, fw, fh, frame_num, delay; + FB_IMAGE **fb_frame = NULL, *tmp_image = NULL; + + if (filename == NULL) + return NULL; + animation = gdk_pixbuf_animation_new_from_file(filename); + if (animation == NULL) + return NULL; + frames = gdk_pixbuf_animation_get_frames(animation); + get_animation_size(animation, &fw, &fh, &delay); + frame_num = n = gdk_pixbuf_animation_get_num_frames(animation); + if (delay <= 0) + max_anim = -1; + if (max_anim < 0) { + frame_num = (-max_anim > n) ? n : -max_anim; + } + else if (max_anim > 0) { + frame_num = n = (max_anim > n) ? n : max_anim; + } + if (w < 1 || h < 1) { + w = fw; + h = fh; + ratio_w = ratio_h = 1; + } + else { + ratio_w = 1.0 * w / fw; + ratio_h = 1.0 * h / fh; + } + + fb_frame = fb_frame_new(w, h, frame_num); + if (fb_frame == NULL) + goto END; + + tmp_image = fb_image_new(w, h); + if (tmp_image == NULL) { + fb_frame_free(fb_frame); + fb_frame = NULL; + goto END; + } + + if (bg_r != 0 || bg_g != 0 || bg_b != 0) { + fb_image_fill(tmp_image, bg_r, bg_g, bg_b); + } + + for (j = 0; j < n; j++) { + GdkPixbufFrame *frame; + GdkPixbuf *org_pixbuf, *pixbuf; + int width, height, ofstx, ofsty; + + if (max_anim < 0) { + i = (j - n + frame_num > 0) ? (j - n + frame_num) : 0; + } + else { + i = j; + } + frame = (GdkPixbufFrame *) g_list_nth_data(frames, j); + org_pixbuf = gdk_pixbuf_frame_get_pixbuf(frame); + ofstx = gdk_pixbuf_frame_get_x_offset(frame); + ofsty = gdk_pixbuf_frame_get_y_offset(frame); + width = gdk_pixbuf_get_width(org_pixbuf); + height = gdk_pixbuf_get_height(org_pixbuf); + if (ofstx == 0 && ofsty == 0 && width == fw && height == fh) { + pixbuf = resize_image(org_pixbuf, w, h); + } + else { + pixbuf = + resize_image(org_pixbuf, width * ratio_w, height * ratio_h); + ofstx *= ratio_w; + ofsty *= ratio_h; + } + width = gdk_pixbuf_get_width(pixbuf); + height = gdk_pixbuf_get_height(pixbuf); + + fb_frame[i]->delay = gdk_pixbuf_frame_get_delay_time(frame); + fb_image_copy(fb_frame[i], tmp_image); + draw(fb_frame[i], !i, ofstx, ofsty, width, height, pixbuf); + + switch (gdk_pixbuf_frame_get_action(frame)) { + case GDK_PIXBUF_FRAME_RETAIN: + fb_image_copy(tmp_image, fb_frame[i]); + break; + case GDK_PIXBUF_FRAME_DISPOSE: + break; + case GDK_PIXBUF_FRAME_REVERT: + fb_image_copy(tmp_image, fb_frame[0]); + break; + default: + fb_image_copy(tmp_image, fb_frame[0]); + } + + if (org_pixbuf != pixbuf) + gdk_pixbuf_finalize(pixbuf); + } + END: + if (tmp_image) + fb_image_free(tmp_image); + gdk_pixbuf_animation_unref(animation); + return fb_frame; +} +static void +draw(FB_IMAGE * img, int bg, int x, int y, int w, int h, GdkPixbuf * pixbuf) +{ + int i, j, r, g, b, offset, bpp, rowstride; + guchar *pixels; + gboolean alpha; + if (img == NULL || pixbuf == NULL) + return; + rowstride = gdk_pixbuf_get_rowstride(pixbuf); + pixels = gdk_pixbuf_get_pixels(pixbuf); + alpha = gdk_pixbuf_get_has_alpha(pixbuf); + bpp = rowstride / w; + for (j = 0; j < h; j++) { + offset = j * rowstride; + for (i = 0; i < w; i++, offset += bpp) { + r = pixels[offset]; + g = pixels[offset + 1]; + b = pixels[offset + 2]; + if (!alpha || pixels[offset + 3] != 0) { + fb_image_pset(img, i + x, j + y, r, g, b); + } + } + } + return; +} +static GdkPixbuf * +resize_image(GdkPixbuf * pixbuf, int width, int height) +{ + GdkPixbuf *resized_pixbuf; + int w, h; + if (pixbuf == NULL) + return NULL; + w = gdk_pixbuf_get_width(pixbuf); + h = gdk_pixbuf_get_height(pixbuf); + if (width < 1 || height < 1) + return pixbuf; + if (w == width && h == height) + return pixbuf; + resized_pixbuf = + gdk_pixbuf_scale_simple(pixbuf, width, height, GDK_INTERP_HYPER); + if (resized_pixbuf == NULL) + return NULL; + return resized_pixbuf; +} |