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jpeg,png: some minor changes.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24621 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Teruaki Kawashima 2010-02-12 14:41:52 +00:00
parent 7a81914786
commit 5b27fe9d95
4 changed files with 143 additions and 162 deletions
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35
apps/plugins/imageviewer/png/png.c
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@ -144,7 +144,7 @@ static fb_data *disp[9];
static fb_data *disp_buf;
/* my memory pool (from the mp3 buffer) */
static char print[128]; /* use a common snprintf() buffer */
static char print[32]; /* use a common snprintf() buffer */
unsigned char *memory, *memory_max; /* inffast.c needs memory_max */
static size_t memory_size;
@ -204,7 +204,6 @@ static unsigned LodePNG_decompress(unsigned char* out, size_t* outsize, const un
if (stream.msg != Z_NULL)
rb->strcpy(error_msg, stream.msg);
return err;
}
/* ////////////////////////////////////////////////////////////////////////// */
@ -469,8 +468,7 @@ unsigned LodePNG_convert(fb_data* out, const unsigned char* in, LodePNG_InfoColo
if (!running_slideshow)
{
rb->snprintf(print, sizeof(print), "color conversion in progress");
rb->lcd_puts(0, 3, print);
rb->lcd_puts(0, 3, "color conversion in progress");
rb->lcd_update();
}
@ -1201,8 +1199,7 @@ static void decodeGeneric(LodePNG_Decoder* decoder, unsigned char* in, size_t si
memset(decoded_image, 0, decoded_image_size * sizeof(unsigned char));
if (!running_slideshow)
{
rb->snprintf(print, sizeof(print), "unfiltering scanlines");
rb->lcd_puts(0, 3, print);
rb->lcd_puts(0, 3, "unfiltering scanlines");
rb->lcd_update();
}
decoder->error = postProcessScanlines(decoded_image, scanlines, decoder);
@ -1217,7 +1214,7 @@ void LodePNG_decode(LodePNG_Decoder* decoder, unsigned char* in, size_t insize,
/*TODO: check if this works according to the statement in the documentation: "The converter can convert from greyscale input color type, to 8-bit greyscale or greyscale with alpha"*/
if (!(decoder->infoRaw.color.colorType == 2 || decoder->infoRaw.color.colorType == 6) && !(decoder->infoRaw.color.bitDepth == 8)) { decoder->error = 56; return; }
converted_image = (fb_data *)((intptr_t)(memory + 3) & ~3);
converted_image = (fb_data *)memory;
converted_image_size = decoder->infoPng.width*decoder->infoPng.height;
if ((unsigned char *)(converted_image + converted_image_size) >= decoded_image) { decoder->error = OUT_OF_MEMORY; }
if (!decoder->error) decoder->error = LodePNG_convert(converted_image, decoded_image, &decoder->infoRaw.color, &decoder->infoPng.color, decoder->infoPng.width, decoder->infoPng.height);
@ -1333,9 +1330,10 @@ int load_image(char *filename, struct image_info *info,
memset(&disp, 0, sizeof(disp));
LodePNG_Decoder_init(decoder);
memory = buf;
memory_size = *buf_size;
memory_max = memory + memory_size;
/* align buffer */
memory = (unsigned char *)((intptr_t)(buf + 3) & ~3);
memory_max = (unsigned char *)((intptr_t)(memory + *buf_size) & ~3);
memory_size = memory_max - memory;
fd = rb->open(filename, O_RDONLY);
if (fd < 0)
@ -1348,8 +1346,7 @@ int load_image(char *filename, struct image_info *info,
DEBUGF("reading file '%s'\n", filename);
if (!running_slideshow) {
rb->snprintf(print, sizeof(print), "%s:", rb->strrchr(filename,'/')+1);
rb->lcd_puts(0, 0, print);
rb->lcd_puts(0, 0, rb->strrchr(filename,'/')+1);
rb->lcd_update();
}
@ -1369,8 +1366,7 @@ int load_image(char *filename, struct image_info *info,
rb->close(fd);
if (!running_slideshow) {
rb->snprintf(print, sizeof(print), "decoding image");
rb->lcd_puts(0, 2, print);
rb->lcd_puts(0, 2, "decoding image");
rb->lcd_update();
}
#ifdef DISK_SPINDOWN
@ -1409,11 +1405,10 @@ int load_image(char *filename, struct image_info *info,
#else
LodePNG_decode(decoder, image, image_size, cb_progress);
#endif /*HAVE_ADJUSTABLE_CPU_FREQ*/
time = *rb->current_tick - time;
}
}
time = *rb->current_tick - time;
if (!running_slideshow && !decoder->error)
{
rb->snprintf(print, sizeof(print), " %ld.%02ld sec ", time/HZ, time%HZ);
@ -1423,7 +1418,7 @@ int load_image(char *filename, struct image_info *info,
}
if (decoder->error) {
#if PLUGIN_BUFFER_SIZE >= MIN_MEM
#ifdef USE_PLUG_BUF
if (plug_buf && (decoder->error == FILE_TOO_LARGE
|| decoder->error == OUT_OF_MEMORY || decoder->error == Z_MEM_ERROR))
return PLUGIN_OUTOFMEM;
@ -1457,7 +1452,7 @@ int load_image(char *filename, struct image_info *info,
return PLUGIN_ERROR;
}
disp_buf = (fb_data *)((intptr_t)(converted_image + converted_image_size + 3) & ~3);
disp_buf = converted_image + converted_image_size;
info->x_size = decoder->infoPng.width;
info->y_size = decoder->infoPng.height;
*buf_size = memory_max - (unsigned char*)disp_buf;
@ -1498,11 +1493,11 @@ int get_image(struct image_info *info, int ds)
for (i=1; i<=8; i++)
disp[i] = NULL; /* invalidate all bitmaps */
/* start again from the beginning of the buffer */
disp_buf = (fb_data *)((intptr_t)(converted_image + converted_image_size + 3) & ~3);
disp_buf = converted_image + converted_image_size;
}
*p_disp = disp_buf;
disp_buf = (fb_data *)((intptr_t)(disp_buf + size + 3) & ~3);
disp_buf += size;
bmp_src.width = decoder->infoPng.width;
bmp_src.height = decoder->infoPng.height;