mirror of
https://github.com/Rockbox/rockbox.git
synced 2026-05-12 11:43:16 -04:00
f4dc4d89dc
Looks nicer, especially when the "View Album Art" option is used. Add delay to progress bar, so it only appears when 250ms have passed. Change-Id: I183c839f1ab206385cd01327922933b544c4b78b
287 lines
8.3 KiB
C
287 lines
8.3 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Copyright (c) 2012 Marcin Bukat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "plugin.h"
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#include "lcd.h"
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#include <lib/pluginlib_bmp.h>
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#include "../imageviewer.h"
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#include "bmp.h"
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#include "gif_decoder.h"
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#include "gif_lib.h"
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/* decoder context struct */
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static struct gif_decoder decoder;
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static char print[32]; /* use a common snprintf() buffer */
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/* pointers to decompressed frame in the possible sizes ds = (1,2,4,8)
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* basicaly equivalent to *disp[n][4] where n is the number of frames
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* in gif file. The matrix is allocated after decoded frames.
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*/
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static unsigned char **disp;
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static unsigned char *disp_buf;
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#if defined(HAVE_LCD_COLOR)
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#define resize_bitmap smooth_resize_bitmap
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#else
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#define resize_bitmap grey_resize_bitmap
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#endif
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#if defined(USEGSLIB) && (CONFIG_PLATFORM & PLATFORM_HOSTED)
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/* hack: fix error "undefined reference to `_grey_info'". */
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GREY_INFO_STRUCT
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#endif /* USEGSLIB */
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static void draw_image_rect(struct image_info *info,
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int x, int y, int width, int height)
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{
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unsigned char **pdisp = (unsigned char **)info->data;
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#ifdef HAVE_LCD_COLOR
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rb->lcd_bitmap_part((fb_data *)*pdisp, info->x + x, info->y + y,
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STRIDE(SCREEN_MAIN, info->width, info->height),
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x + MAX(0, (LCD_WIDTH-info->width)/2),
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y + MAX(0, (LCD_HEIGHT-info->height)/2),
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width, height);
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#else
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mylcd_ub_gray_bitmap_part(*pdisp,
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info->x + x, info->y + y, info->width,
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x + MAX(0, (LCD_WIDTH-info->width)/2),
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y + MAX(0, (LCD_HEIGHT-info->height)/2),
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width, height);
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#endif
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}
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static int img_mem(int ds)
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{
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struct gif_decoder *p_decoder = &decoder;
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return (p_decoder->native_img_size/ds + 3) & ~3;
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}
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static int load_image(char *filename, struct image_info *info,
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unsigned char *buf, ssize_t *buf_size,
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int offset, int filesize)
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{
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(void)offset;(void)filesize;
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int w, h;
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long time = 0; /* measured ticks */
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struct gif_decoder *p_decoder = &decoder;
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unsigned char *memory, *memory_max;
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size_t memory_size, img_size, disp_size;
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/* align buffer */
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memory = (unsigned char *)((intptr_t)(buf + 3) & ~3);
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memory_max = (unsigned char *)((intptr_t)(memory + *buf_size) & ~3);
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memory_size = memory_max - memory;
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#ifdef DISK_SPINDOWN
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if (iv->running_slideshow && iv->immediate_ata_off) {
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/* running slideshow and time is long enough: power down disk */
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rb->storage_sleep();
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}
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#endif
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/* initialize decoder context struct, set buffer decoder is free
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* to use.
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*/
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gif_decoder_init(p_decoder, memory, memory_size);
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/* populate internal data from gif file control structs */
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gif_open(filename, p_decoder);
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if (!p_decoder->error)
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{
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if (!iv->settings->hide_info &&
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!iv->running_slideshow)
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{
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rb->lcd_putsf(0, 2, "file: %s",
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filename);
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rb->lcd_putsf(0, 3, "size: %dx%d",
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p_decoder->width,
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p_decoder->height);
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rb->lcd_update();
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}
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/* the actual decoding */
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time = *rb->current_tick;
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(true);
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#endif
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gif_decode(p_decoder, iv->cb_progress);
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(false);
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#endif
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time = *rb->current_tick - time;
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}
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gif_decoder_destroy_memory_pool(p_decoder);
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if (!iv->settings->hide_info &&
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!iv->running_slideshow &&
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!p_decoder->error)
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{
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rb->snprintf(print, sizeof(print), " %ld.%02ld sec ", time/HZ, time%HZ);
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rb->lcd_getstringsize(print, &w, &h); /* centered in progress bar */
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rb->lcd_putsxy((LCD_WIDTH - w)/2, LCD_HEIGHT - h, print);
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rb->lcd_update();
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}
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if (p_decoder->error)
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{
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if (p_decoder->error == D_GIF_ERR_NOT_ENOUGH_MEM)
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return PLUGIN_OUTOFMEM;
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rb->splashf(HZ, "%s", GifErrorString(p_decoder->error));
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return PLUGIN_ERROR;
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}
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info->x_size = p_decoder->width;
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info->y_size = p_decoder->height;
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info->frames_count = p_decoder->frames_count;
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info->delay = p_decoder->delay;
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/* check mem constraints
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* each frame can have 4 scaled versions with ds = (1,2,4,8)
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*/
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img_size = (p_decoder->native_img_size*p_decoder->frames_count + 3) & ~3;
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disp_size = (sizeof(unsigned char *)*p_decoder->frames_count*4 + 3) & ~3;
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/* No memory to allocate disp matrix */
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if (memory_size < img_size + disp_size)
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return PLUGIN_OUTOFMEM;
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disp = (unsigned char **)(p_decoder->mem + img_size);
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disp_buf = (unsigned char *)disp + disp_size;
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*buf_size = memory_max - disp_buf;
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/* set all pointers to NULL initially */
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memset(disp, 0, sizeof(unsigned char *)*p_decoder->frames_count*4);
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return PLUGIN_OK;
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}
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/* small helper to convert scalling factor ds
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* into disp[frame][] array index
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*/
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static int ds2index(int ds)
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{
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int index = 0;
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ds >>= 1;
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while (ds)
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{
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index++;
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ds >>=1;
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}
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return index;
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}
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static int get_image(struct image_info *info, int frame, int ds)
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{
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unsigned char **p_disp = disp + frame*4 + ds2index(ds);
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struct gif_decoder *p_decoder = &decoder;
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info->width = p_decoder->width / ds;
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info->height = p_decoder->height / ds;
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info->data = p_disp;
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if (*p_disp != NULL)
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{
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/* we still have it */
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return PLUGIN_OK;
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}
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/* assign image buffer */
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if (ds > 1)
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{
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if (!iv->settings->hide_info &&
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!iv->running_slideshow &&
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(info->frames_count == 1))
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{
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rb->lcd_putsf(0, 3, "resizing %d*%d", info->width, info->height);
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rb->lcd_update();
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}
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struct bitmap bmp_src, bmp_dst;
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/* size of the scalled image */
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int size = img_mem(ds);
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if (disp_buf + size >= p_decoder->mem + p_decoder->mem_size)
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{
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/* have to discard scaled versions */
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for (int i=0; i<p_decoder->frames_count; i++)
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{
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/* leave unscaled pointer allone,
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* set rest to NULL
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*/
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p_disp = disp + i*4 + 1;
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memset(p_disp, 0, 3*sizeof(unsigned char *));
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}
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/* start again from the beginning of the buffer */
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disp_buf = p_decoder->mem +
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p_decoder->native_img_size*p_decoder->frames_count +
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sizeof(unsigned char *)*p_decoder->frames_count*4;
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}
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*p_disp = disp_buf;
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disp_buf += size;
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bmp_src.width = p_decoder->width;
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bmp_src.height = p_decoder->height;
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bmp_src.data = p_decoder->mem + p_decoder->native_img_size*frame;
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bmp_dst.width = info->width;
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bmp_dst.height = info->height;
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bmp_dst.data = *p_disp;
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(true);
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#endif
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resize_bitmap(&bmp_src, &bmp_dst);
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(false);
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#endif
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}
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else
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{
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*p_disp = p_decoder->mem + p_decoder->native_img_size*frame;
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}
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return PLUGIN_OK;
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}
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const struct image_decoder image_decoder = {
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true,
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img_mem,
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load_image,
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get_image,
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draw_image_rect,
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};
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IMGDEC_HEADER
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