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pictreflow: tweak alpha value for the case number of slides < 3 so that fading looks a bit more smooth.

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do not save settings when it is not so needed.
make sliding animation better when you press right then left quickly.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28529 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Teruaki Kawashima 2010-11-07 14:37:02 +00:00
parent 24b0b38315
commit 8371d78519
1 changed files with 45 additions and 31 deletions
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76
apps/plugins/pictureflow/pictureflow.c
View file

@ -1174,11 +1174,12 @@ bool save_pfraw(char* filename, struct bitmap *bm)
int fh = rb->creat( filename , 0666);
if( fh < 0 ) return false;
rb->write( fh, &bmph, sizeof( struct pfraw_header ) );
pix_t *data = (pix_t*)( bm->data );
int y;
for( y = 0; y < bm->height; y++ )
{
pix_t *d = (pix_t*)( bm->data ) + (y*bm->width);
rb->write( fh, d, sizeof( pix_t ) * bm->width );
rb->write( fh, data , sizeof( pix_t ) * bm->width );
data += bm->width;
}
rb->close( fh );
return true;
@ -1199,8 +1200,6 @@ bool create_albumart_cache(void)
char albumart_file[MAX_PATH];
unsigned int format = FORMAT_NATIVE;
bool update = (cache_version == CACHE_UPDATE);
cache_version = CACHE_REBUILD;
configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
if (resize)
format |= FORMAT_RESIZE|FORMAT_KEEP_ASPECT;
for (i=0; i < album_count; i++)
@ -1211,8 +1210,10 @@ bool create_albumart_cache(void)
mfnv(get_album_name(i)));
/* delete existing cache, so it's a true rebuild */
if(rb->file_exists(pfraw_file)) {
if(update)
if(update) {
slides++;
continue;
}
rb->remove(pfraw_file);
}
if (!get_albumart_for_index_from_db(i, albumart_file, MAX_PATH))
@ -1234,10 +1235,12 @@ bool create_albumart_cache(void)
if (!save_pfraw(pfraw_file, &input_bmp))
{
rb->splash(HZ, "Could not write bmp");
continue;
}
slides++;
if ( rb->button_get(false) == PF_MENU ) return false;
}
draw_progressbar(i);
if ( slides == 0 ) {
/* Warn the user that we couldn't find any albumart */
rb->splash(2*HZ, "No album art found");
@ -1516,8 +1519,8 @@ int read_pfraw(char* filename, int prio)
else
rb->read(fh, &bmph, sizeof(struct pfraw_header));
int size = sizeof(struct bitmap) + sizeof( pix_t ) *
bmph.width * bmph.height;
int size = sizeof(struct dim) +
sizeof( pix_t ) * bmph.width * bmph.height;
int hid;
while (!(hid = buflib_alloc(&buf_ctx, size)) && free_slide_prio(prio));
@ -1928,6 +1931,7 @@ void render_slide(struct slide_data *slide, const int alpha)
}
rb->yield(); /* allow audio to play when fast scrolling */
bmp = surface(slide->slide_index); /* resync surface due to yield */
src = (pix_t*)(sizeof(struct dim) + (char *)bmp);
ptr = &src[column * bmp->height];
p = (bmp->height-DISPLAY_OFFS) * PFREAL_ONE;
plim = MIN(sh * PFREAL_ONE, p + (LCD_HEIGHT/2) * dy);
@ -2006,7 +2010,7 @@ void show_previous_slide(void)
}
} else if ( step > 0 ) {
target = center_index;
start_animation();
step = (target <= center_slide.slide_index) ? -1 : 1;
} else {
target = fmax(0, center_index - 2);
}
@ -2025,7 +2029,7 @@ void show_next_slide(void)
}
} else if ( step < 0 ) {
target = center_index;
start_animation();
step = (target < center_slide.slide_index) ? -1 : 1;
} else {
target = fmin(center_index + 2, number_of_slides - 1);
}
@ -2044,45 +2048,46 @@ void render_all_slides(void)
int nleft = num_slides;
int nright = num_slides;
int alpha;
int index;
if (step == 0) {
/* no animation, boring plain rendering */
for (index = nleft - 2; index >= 0; index--) {
int alpha = (index < nleft - 2) ? 256 : 128;
alpha = (index < nleft - 2) ? 256 : 128;
alpha -= extra_fade;
if (alpha > 0 )
render_slide(&left_slides[index], alpha);
}
for (index = nright - 2; index >= 0; index--) {
int alpha = (index < nright - 2) ? 256 : 128;
alpha = (index < nright - 2) ? 256 : 128;
alpha -= extra_fade;
if (alpha > 0 )
render_slide(&right_slides[index], alpha);
}
} else {
/* the first and last slide must fade in/fade out */
/* if step<0 and nleft==1, left_slides[0] is fading in */
alpha = ((step > 0) ? 0 : ((nleft == 1) ? 256 : 128)) - fade / 2;
for (index = nleft - 1; index >= 0; index--) {
int alpha = 256;
if (index == nleft - 1)
alpha = (step > 0) ? 0 : 128 - fade / 2;
if (index == nleft - 2)
alpha = (step > 0) ? 128 - fade / 2 : 256 - fade / 2;
if (index == nleft - 3)
alpha = (step > 0) ? 256 - fade / 2 : 256;
render_slide(&left_slides[index], alpha);
if (alpha > 0)
render_slide(&left_slides[index], alpha);
alpha += 128;
if (alpha > 256) alpha = 256;
}
/* if step>0 and nright==1, right_slides[0] is fading in */
alpha = ((step > 0) ? ((nright == 1) ? 128 : 0) : -128) + fade / 2;
for (index = nright - 1; index >= 0; index--) {
int alpha = (index < nright - 2) ? 256 : 128;
if (index == nright - 1)
alpha = (step > 0) ? fade / 2 : 0;
if (index == nright - 2)
alpha = (step > 0) ? 128 + fade / 2 : fade / 2;
if (index == nright - 3)
alpha = (step > 0) ? 256 : 128 + fade / 2;
render_slide(&right_slides[index], alpha);
if (alpha > 0)
render_slide(&right_slides[index], alpha);
alpha += 128;
if (alpha > 256) alpha = 256;
}
}
render_slide(&center_slide, 256);
alpha = 256;
if (step != 0 && num_slides <= 2) /* fading out center slide */
alpha = (step > 0) ? 256 - fade / 2 : 128 + fade / 2;
render_slide(&center_slide, alpha);
}
@ -2142,6 +2147,7 @@ void update_scroll_animation(void)
if (center_index == target) {
reset_slides();
pf_state = pf_idle;
slide_frame = center_index << 16;
step = 0;
fade = 256;
return;
@ -2285,6 +2291,8 @@ int settings_menu(void)
case 7:
cache_version = CACHE_REBUILD;
rb->remove(EMPTY_SLIDE);
configfile_save(CONFIG_FILE, config,
CONFIG_NUM_ITEMS, CONFIG_VERSION);
rb->splash(HZ, "Cache will be rebuilt on next restart");
break;
case 8:
@ -2298,7 +2306,6 @@ int settings_menu(void)
return PLUGIN_USB_CONNECTED;
}
} while ( selection >= 0 );
configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
return 0;
}
@ -2678,16 +2685,23 @@ int main(void)
ALIGN_BUFFER(buf, buf_size, 4);
number_of_slides = album_count;
if ((cache_version != CACHE_VERSION) && !create_albumart_cache()) {
cache_version = CACHE_REBUILD;
configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
error_wait("Could not create album art cache");
return PLUGIN_ERROR;
}
if (!create_empty_slide(cache_version != CACHE_VERSION)) {
cache_version = CACHE_REBUILD;
configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
error_wait("Could not load the empty slide");
return PLUGIN_ERROR;
}
cache_version = CACHE_VERSION;
configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
if (cache_version != CACHE_VERSION)
{
cache_version = CACHE_VERSION;
configfile_save(CONFIG_FILE, config, CONFIG_NUM_ITEMS, CONFIG_VERSION);
}
buflib_init(&buf_ctx, (void *)buf, buf_size);