From d055ff4a94e5fe2f06a1454c4baa60c641ea8012 Mon Sep 17 00:00:00 2001 From: Teruaki Kawashima Date: Mon, 1 Nov 2010 12:13:49 +0000 Subject: reduce casts between "unsinged char *" and "fb_data *". make calculation precise. maintain spaces. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28428 a1c6a512-1295-4272-9138-f99709370657 --- apps/plugins/imageviewer/png/png.c | 45 +- apps/plugins/imageviewer/png/png.h | 25 - apps/plugins/imageviewer/png/png_decoder.c | 1082 ++++++++++++++-------------- apps/plugins/imageviewer/png/tinflate.c | 4 +- 4 files changed, 561 insertions(+), 595 deletions(-) delete mode 100644 apps/plugins/imageviewer/png/png.h (limited to 'apps/plugins') diff --git a/apps/plugins/imageviewer/png/png.c b/apps/plugins/imageviewer/png/png.c index 4bd988d939..956cad37d8 100644 --- a/apps/plugins/imageviewer/png/png.c +++ b/apps/plugins/imageviewer/png/png.c @@ -31,19 +31,18 @@ #include "lcd.h" #include #include "tinf.h" -#include "png.h" +#include "../imageviewer.h" #include "png_decoder.h" #include "bmp.h" /* decoder context struct */ static LodePNG_Decoder decoder; -/* 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 */ /* decompressed image in the possible sizes (1,2,4,8), wasting the other */ -static fb_data *disp[9]; -static fb_data *disp_buf; +static unsigned char *disp[9]; +static unsigned char *disp_buf; #if defined(HAVE_LCD_COLOR) #define resize_bitmap smooth_resize_bitmap @@ -64,16 +63,16 @@ bool img_ext(const char *ext) void draw_image_rect(struct image_info *info, int x, int y, int width, int height) { - fb_data **pdisp = (fb_data**)info->data; + unsigned char **pdisp = (unsigned char **)info->data; #ifdef HAVE_LCD_COLOR - rb->lcd_bitmap_part(*pdisp, info->x + x, info->y + y, + rb->lcd_bitmap_part((fb_data *)*pdisp, info->x + x, info->y + y, STRIDE(SCREEN_MAIN, info->width, info->height), x + MAX(0, (LCD_WIDTH-info->width)/2), y + MAX(0, (LCD_HEIGHT-info->height)/2), width, height); #else - mylcd_ub_gray_bitmap_part((const unsigned char*)*pdisp, + mylcd_ub_gray_bitmap_part(*pdisp, info->x + x, info->y + y, info->width, x + MAX(0, (LCD_WIDTH-info->width)/2), y + MAX(0, (LCD_HEIGHT-info->height)/2), @@ -102,9 +101,8 @@ int load_image(char *filename, struct image_info *info, int w, h; /* used to center output */ LodePNG_Decoder *p_decoder = &decoder; - unsigned char *memory, *memory_max; - static size_t memory_size, file_size; - static unsigned char *image; + unsigned char *memory, *memory_max, *image; + size_t memory_size, file_size; /* cleanup */ memset(&disp, 0, sizeof(disp)); @@ -239,16 +237,16 @@ int load_image(char *filename, struct image_info *info, info->x_size = p_decoder->infoPng.width; info->y_size = p_decoder->infoPng.height; - disp_buf = (fb_data *)(p_decoder->buf + p_decoder->native_img_size); - disp_buf = (fb_data *)ALIGN_UP((uintptr_t)disp_buf,4); - *buf_size = memory_max - (unsigned char*)disp_buf; + p_decoder->native_img_size = (p_decoder->native_img_size + 3) & ~3; + disp_buf = p_decoder->buf + p_decoder->native_img_size; + *buf_size = memory_max - disp_buf; return PLUGIN_OK; } int get_image(struct image_info *info, int ds) { - fb_data **p_disp = &disp[ds]; /* short cut */ + unsigned char **p_disp = &disp[ds]; /* short cut */ LodePNG_Decoder *p_decoder = &decoder; info->width = p_decoder->infoPng.width / ds; @@ -270,33 +268,28 @@ int get_image(struct image_info *info, int ds) } struct bitmap bmp_src, bmp_dst; - int size = info->width * info->height; + int size = img_mem(ds); - if ((unsigned char *)(disp_buf + size) >= p_decoder->buf + p_decoder->buf_size) { + if (disp_buf + size >= p_decoder->buf + p_decoder->buf_size) { /* have to discard the current */ int i; for (i=1; i<=8; i++) disp[i] = NULL; /* invalidate all bitmaps */ /* start again from the beginning of the buffer */ - disp_buf = (fb_data *)(p_decoder->buf + p_decoder->native_img_size); - disp_buf = (fb_data *)ALIGN_UP((uintptr_t)disp_buf,4); + disp_buf = p_decoder->buf + p_decoder->native_img_size; } *p_disp = disp_buf; -#ifdef USEGSLIB - disp_buf = (fb_data *)((unsigned char *)disp_buf + size); -#else disp_buf += size; -#endif bmp_src.width = p_decoder->infoPng.width; bmp_src.height = p_decoder->infoPng.height; - bmp_src.data = (unsigned char *)p_decoder->buf; + bmp_src.data = p_decoder->buf; bmp_dst.width = info->width; bmp_dst.height = info->height; - bmp_dst.data = (unsigned char *)*p_disp; + bmp_dst.data = *p_disp; #ifdef HAVE_ADJUSTABLE_CPU_FREQ rb->cpu_boost(true); resize_bitmap(&bmp_src, &bmp_dst); @@ -305,7 +298,7 @@ int get_image(struct image_info *info, int ds) resize_bitmap(&bmp_src, &bmp_dst); #endif /*HAVE_ADJUSTABLE_CPU_FREQ*/ } else { - *p_disp = (fb_data *)p_decoder->buf; + *p_disp = p_decoder->buf; } return PLUGIN_OK; diff --git a/apps/plugins/imageviewer/png/png.h b/apps/plugins/imageviewer/png/png.h deleted file mode 100644 index f5c76f1f44..0000000000 --- a/apps/plugins/imageviewer/png/png.h +++ /dev/null @@ -1,25 +0,0 @@ -/*************************************************************************** - * __________ __ ___. - * Open \______ \ ____ ____ | | _\_ |__ _______ ___ - * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / - * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < - * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ - * \/ \/ \/ \/ \/ - * $Id$id $ - * - * Copyright (C) 2009 by Christophe Gouiran - * - * Based on lodepng, a lightweight png decoder/encoder - * (c) 2005-2008 Lode Vandevenne - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ****************************************************************************/ - -#include "../imageviewer.h" diff --git a/apps/plugins/imageviewer/png/png_decoder.c b/apps/plugins/imageviewer/png/png_decoder.c index b09d2e2ece..a0ce0519de 100644 --- a/apps/plugins/imageviewer/png/png_decoder.c +++ b/apps/plugins/imageviewer/png/png_decoder.c @@ -199,7 +199,7 @@ static void setBitOfReversedStream0(size_t* bitpointer, */ if (bit) bitstream[(*bitpointer) >> 3] |= (bit << (7 - ((*bitpointer) & 0x7))); - + (*bitpointer)++; } @@ -408,7 +408,7 @@ static void LodePNG_convert(LodePNG_Decoder *decoder) #ifdef HAVE_LCD_COLOR struct uint8_rgb *line_buf = (struct uint8_rgb *)(out + w * h * FB_DATA_SZ); #else - uint8_t *line_buf = (unsigned char *)(out + w * h * FB_DATA_SZ); + uint8_t *line_buf = (unsigned char *)(out + w * h); #endif struct bitmap bm = { @@ -428,585 +428,585 @@ static void LodePNG_convert(LodePNG_Decoder *decoder) const struct custom_format *cformat = &format_native; #endif -void (*output_row_8)(uint32_t, void*, struct scaler_context*) = cformat->output_row_8; + void (*output_row_8)(uint32_t, void*, struct scaler_context*) = cformat->output_row_8; #ifdef HAVE_LCD_COLOR -struct uint8_rgb *pixel; + struct uint8_rgb *pixel; #else -unsigned char *pixel; + unsigned char *pixel; #endif #ifdef HAVE_LCD_COLOR - if (infoIn->color.bitDepth == 8) + if (infoIn->color.bitDepth == 8) + { + switch (infoIn->color.colorType) { - switch (infoIn->color.colorType) - { - case PNG_COLORTYPE_GREY: /*greyscale color*/ - i = 0; - for (y = 0 ; y < h ; y++) { - /* reset line buf */ - pixel = line_buf; - - for (x = 0; x < w ; x++) { - value = in[i++]; - if (infoIn->color.key_defined) - if ( (uint8_t)value == (uint8_t)infoIn->color.key_r ) - value = infoIn->background_r; /* full transparent */ - - pixel->red = (uint8_t)value; - pixel->green = (uint8_t)value; - pixel->blue = (uint8_t)value; - pixel++; - } - output_row_8(y,(void *)line_buf,&ctx); + case PNG_COLORTYPE_GREY: /*greyscale color*/ + i = 0; + for (y = 0 ; y < h ; y++) { + /* reset line buf */ + pixel = line_buf; + + for (x = 0; x < w ; x++) { + value = in[i++]; + if (infoIn->color.key_defined) + if ( (uint8_t)value == (uint8_t)infoIn->color.key_r ) + value = infoIn->background_r; /* full transparent */ + + pixel->red = (uint8_t)value; + pixel->green = (uint8_t)value; + pixel->blue = (uint8_t)value; + pixel++; } - break; - case PNG_COLORTYPE_RGB: /*RGB color*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - j = 3*i++; - - /* tRNs & bKGD */ - if (infoIn->color.key_defined && - in[j] == (uint8_t)infoIn->color.key_r && - in[j + 1] == (uint8_t)infoIn->color.key_g && - in[j + 2] == (uint8_t)infoIn->color.key_b) - { - pixel->red = (uint8_t)infoIn->background_r; - pixel->green = (uint8_t)infoIn->background_g; - pixel->blue = (uint8_t)infoIn->background_b; - } - else - { - pixel->red = in[j]; - pixel->green = in[j + 1]; - pixel->blue = in[j + 2]; - } - pixel++; + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_RGB: /*RGB color*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + j = 3*i++; + + /* tRNs & bKGD */ + if (infoIn->color.key_defined && + in[j] == (uint8_t)infoIn->color.key_r && + in[j + 1] == (uint8_t)infoIn->color.key_g && + in[j + 2] == (uint8_t)infoIn->color.key_b) + { + pixel->red = (uint8_t)infoIn->background_r; + pixel->green = (uint8_t)infoIn->background_g; + pixel->blue = (uint8_t)infoIn->background_b; } - output_row_8(y,(void *)line_buf,&ctx); - } - break; - case PNG_COLORTYPE_PALETTE: /*indexed color (palette)*/ - i = 0; - for (y = 0 ; y < h ; y++) { - /* reset line buf */ - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - if (in[i] >= infoIn->color.palettesize) - { - decoder->error = 46; - return; - } - - j = in[i++]<<2; - alpha = infoIn->color.palette[j + 3]; - alpha_complement = (256 - alpha); - - /* tRNS and bKGD */ - pixel->red = (infoIn->color.palette[j] * alpha + - alpha_complement*infoIn->background_r)>>8; - pixel->green = (infoIn->color.palette[j + 1] * alpha + - alpha_complement*infoIn->background_g)>>8; - pixel->blue = (infoIn->color.palette[j + 2] * alpha + - alpha_complement*infoIn->background_b)>>8; - pixel++; + else + { + pixel->red = in[j]; + pixel->green = in[j + 1]; + pixel->blue = in[j + 2]; } - output_row_8(y,(void *)(line_buf),&ctx); + pixel++; } - break; - case PNG_COLORTYPE_GREYA: /*greyscale with alpha*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - alpha = in[(i << 1) + 1]; - alpha_complement = (256 - alpha)*infoIn->background_r; - value = (alpha * in[i++ << 1] + alpha_complement)>>8; - pixel->red = (uint8_t)(value); - pixel->green = (uint8_t)value; - pixel->blue = (uint8_t)value; - pixel++; + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_PALETTE: /*indexed color (palette)*/ + i = 0; + for (y = 0 ; y < h ; y++) { + /* reset line buf */ + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + if (in[i] >= infoIn->color.palettesize) + { + decoder->error = 46; + return; } - output_row_8(y,(void *)line_buf,&ctx); + + j = in[i++]<<2; + alpha = infoIn->color.palette[j + 3]; + alpha_complement = (256 - alpha); + + /* tRNS and bKGD */ + pixel->red = (infoIn->color.palette[j] * alpha + + alpha_complement*infoIn->background_r)>>8; + pixel->green = (infoIn->color.palette[j + 1] * alpha + + alpha_complement*infoIn->background_g)>>8; + pixel->blue = (infoIn->color.palette[j + 2] * alpha + + alpha_complement*infoIn->background_b)>>8; + pixel++; } - break; - case PNG_COLORTYPE_RGBA: /*RGB with alpha*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - j = i++ << 2; - alpha = in[j + 3]; - alpha_complement = (256 - alpha); - pixel->red = (in[j] * alpha + - alpha_complement*infoIn->background_r)>>8; - pixel->green = (in[j + 1] * alpha + - alpha_complement*infoIn->background_g)>>8; - pixel->blue = (in[j + 2] * alpha + - alpha_complement*infoIn->background_b)>>8; - pixel++; - } - output_row_8(y,(void *)line_buf,&ctx); + output_row_8(y,(void *)(line_buf),&ctx); + } + break; + case PNG_COLORTYPE_GREYA: /*greyscale with alpha*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + alpha = in[(i << 1) + 1]; + alpha_complement = (256 - alpha)*infoIn->background_r; + value = (alpha * in[i++ << 1] + alpha_complement)>>8; + pixel->red = (uint8_t)(value); + pixel->green = (uint8_t)value; + pixel->blue = (uint8_t)value; + pixel++; } - break; - default: - break; + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_RGBA: /*RGB with alpha*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + j = i++ << 2; + alpha = in[j + 3]; + alpha_complement = (256 - alpha); + pixel->red = (in[j] * alpha + + alpha_complement*infoIn->background_r)>>8; + pixel->green = (in[j + 1] * alpha + + alpha_complement*infoIn->background_g)>>8; + pixel->blue = (in[j + 2] * alpha + + alpha_complement*infoIn->background_b)>>8; + pixel++; + } + output_row_8(y,(void *)line_buf,&ctx); } + break; + default: + break; } - else if (infoIn->color.bitDepth == 16) + } + else if (infoIn->color.bitDepth == 16) + { + switch (infoIn->color.colorType) { - switch (infoIn->color.colorType) - { - case PNG_COLORTYPE_GREY: /*greyscale color*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - value = (in[i<<1]<<8)|in[(i << 1) + 1]; - i++; - - /* tRNS and bKGD */ - if (infoIn->color.key_defined && - value == infoIn->color.key_r) - value = infoIn->background_r<<8; - - pixel->red = - pixel->green = - pixel->blue = (uint8_t)(value>>8); - pixel++; - } - output_row_8(y,(void *)line_buf,&ctx); + case PNG_COLORTYPE_GREY: /*greyscale color*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + value = (in[i<<1]<<8)|in[(i << 1) + 1]; + i++; + + /* tRNS and bKGD */ + if (infoIn->color.key_defined && + value == infoIn->color.key_r) + value = infoIn->background_r<<8; + + pixel->red = + pixel->green = + pixel->blue = (uint8_t)(value>>8); + pixel++; } - break; - case PNG_COLORTYPE_RGB: /*RGB color*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - j = 6 * i++; - - /* tRNS and bKGD */ - if (infoIn->color.key_defined && - ((uint16_t)(in[j]<<8|in[j + 1]) == - infoIn->color.key_r) && - ((uint16_t)(in[j + 2]<<8|in[j + 3]) == - infoIn->color.key_g) && - ((uint16_t)(in[j + 4]<<8|in[j + 5]) == - infoIn->color.key_b)) - { - pixel->red = (uint8_t)infoIn->background_r; - pixel->green = (uint8_t)infoIn->background_g; - pixel->blue = (uint8_t)infoIn->background_b; - } - else - { - pixel->red = in[j]; - pixel->green = in[j + 2]; - pixel->blue = in[j + 4]; - } - pixel++; + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_RGB: /*RGB color*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + j = 6 * i++; + + /* tRNS and bKGD */ + if (infoIn->color.key_defined && + ((uint16_t)(in[j]<<8|in[j + 1]) == + infoIn->color.key_r) && + ((uint16_t)(in[j + 2]<<8|in[j + 3]) == + infoIn->color.key_g) && + ((uint16_t)(in[j + 4]<<8|in[j + 5]) == + infoIn->color.key_b)) + { + pixel->red = (uint8_t)infoIn->background_r; + pixel->green = (uint8_t)infoIn->background_g; + pixel->blue = (uint8_t)infoIn->background_b; } - output_row_8(y,(void *)line_buf,&ctx); - } - break; - case PNG_COLORTYPE_GREYA: /*greyscale with alpha*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - alpha = in[(i << 2) + 2]; - alpha_complement = (256-alpha)*infoIn->background_r; - value = (in[i++ << 2] * alpha + alpha_complement)>>8; - pixel->red = (uint8_t)value; - pixel->green = (uint8_t)value; - pixel->blue = (uint8_t)value; - pixel++; + else + { + pixel->red = in[j]; + pixel->green = in[j + 2]; + pixel->blue = in[j + 4]; } - output_row_8(y,(void *)line_buf,&ctx); + pixel++; } - break; - case PNG_COLORTYPE_RGBA: /*RGB with alpha*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - j = i++ << 3; - alpha = in[j + 6]; - alpha_complement = (256-alpha); - pixel->red = (in[j] * alpha + - alpha_complement*infoIn->background_r)>>8; - pixel->green = (in[j + 2] * alpha + - alpha_complement*infoIn->background_g)>>8; - pixel->blue = (in[j + 4] * alpha + - alpha_complement*infoIn->background_b)>>8; - pixel++; - } - output_row_8(y,(void *)line_buf,&ctx); + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_GREYA: /*greyscale with alpha*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + alpha = in[(i << 2) + 2]; + alpha_complement = (256-alpha)*infoIn->background_r; + value = (in[i++ << 2] * alpha + alpha_complement)>>8; + pixel->red = (uint8_t)value; + pixel->green = (uint8_t)value; + pixel->blue = (uint8_t)value; + pixel++; } - break; - default: - break; + output_row_8(y,(void *)line_buf,&ctx); } + break; + case PNG_COLORTYPE_RGBA: /*RGB with alpha*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + j = i++ << 3; + alpha = in[j + 6]; + alpha_complement = (256-alpha); + pixel->red = (in[j] * alpha + + alpha_complement*infoIn->background_r)>>8; + pixel->green = (in[j + 2] * alpha + + alpha_complement*infoIn->background_g)>>8; + pixel->blue = (in[j + 4] * alpha + + alpha_complement*infoIn->background_b)>>8; + pixel++; + } + output_row_8(y,(void *)line_buf,&ctx); + } + break; + default: + break; } - else /*infoIn->bitDepth is less than 8 bit per channel*/ + } + else /*infoIn->bitDepth is less than 8 bit per channel*/ + { + switch (infoIn->color.colorType) { - switch (infoIn->color.colorType) - { - case PNG_COLORTYPE_GREY: /*greyscale color*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - value = readBitsFromReversedStream(&bp, in, infoIn->color.bitDepth); - - /* tRNS and bKGD */ - if (infoIn->color.key_defined) - if ( value == infoIn->color.key_r ) - value = infoIn->background_r; /* full transparent */ - - /* scale value from 0 to 255 */ - value = (value * 255) / ((1 << infoIn->color.bitDepth) - 1); - - pixel->red = (uint8_t)value; - pixel->green = (uint8_t)value; - pixel->blue = (uint8_t)value; - pixel++; - } - output_row_8(y,(void *)line_buf,&ctx); + case PNG_COLORTYPE_GREY: /*greyscale color*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + value = readBitsFromReversedStream(&bp, in, infoIn->color.bitDepth); + + /* tRNS and bKGD */ + if (infoIn->color.key_defined) + if ( value == infoIn->color.key_r ) + value = infoIn->background_r; /* full transparent */ + + /* scale value from 0 to 255 */ + value = (value * 255) / ((1 << infoIn->color.bitDepth) - 1); + + pixel->red = (uint8_t)value; + pixel->green = (uint8_t)value; + pixel->blue = (uint8_t)value; + pixel++; } - break; - case PNG_COLORTYPE_PALETTE: /*indexed color (palette)*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - value = readBitsFromReversedStream(&bp, in, infoIn->color.bitDepth); - if (value >= infoIn->color.palettesize) - { - decoder->error = 47; - return; - } - - j = value << 2; - - /* tRNS and bKGD */ - alpha = infoIn->color.palette[j + 3]; - alpha_complement = (256 - alpha); - pixel->red = (alpha * infoIn->color.palette[j] + - alpha_complement*infoIn->background_r)>>8; - pixel->green = (alpha * infoIn->color.palette[j + 1] + - alpha_complement*infoIn->background_g)>>8; - pixel->blue = (alpha * infoIn->color.palette[j + 2] + - alpha_complement*infoIn->background_b)>>8; - pixel++; + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_PALETTE: /*indexed color (palette)*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + value = readBitsFromReversedStream(&bp, in, infoIn->color.bitDepth); + if (value >= infoIn->color.palettesize) + { + decoder->error = 47; + return; } - output_row_8(y,(void *)line_buf,&ctx); + + j = value << 2; + + /* tRNS and bKGD */ + alpha = infoIn->color.palette[j + 3]; + alpha_complement = (256 - alpha); + pixel->red = (alpha * infoIn->color.palette[j] + + alpha_complement*infoIn->background_r)>>8; + pixel->green = (alpha * infoIn->color.palette[j + 1] + + alpha_complement*infoIn->background_g)>>8; + pixel->blue = (alpha * infoIn->color.palette[j + 2] + + alpha_complement*infoIn->background_b)>>8; + pixel++; } - break; - default: - break; + output_row_8(y,(void *)line_buf,&ctx); } + break; + default: + break; } + } #else /* greyscale targets */ -struct uint8_rgb px_rgb; /* for rgb(a) -> greyscale conversion */ -uint8_t background_grey; /* for rgb background -> greyscale background */ + struct uint8_rgb px_rgb; /* for rgb(a) -> greyscale conversion */ + uint8_t background_grey; /* for rgb background -> greyscale background */ - if (infoIn->color.bitDepth == 8) + if (infoIn->color.bitDepth == 8) + { + switch (infoIn->color.colorType) { - switch (infoIn->color.colorType) - { - case PNG_COLORTYPE_GREY: /*greyscale color*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++ ) { - value = in[i++]; - - /* transparent color defined in tRNS chunk */ - if (infoIn->color.key_defined) - if ( (uint8_t)value == (uint8_t)infoIn->color.key_r ) - value = infoIn->background_r; - - *pixel++ = (uint8_t)value; - } - output_row_8(y,(void *)line_buf,&ctx); + case PNG_COLORTYPE_GREY: /*greyscale color*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++ ) { + value = in[i++]; + + /* transparent color defined in tRNS chunk */ + if (infoIn->color.key_defined) + if ( (uint8_t)value == (uint8_t)infoIn->color.key_r ) + value = infoIn->background_r; + + *pixel++ = (uint8_t)value; } - break; - case PNG_COLORTYPE_RGB: /*RGB color*/ - /* convert background rgb color to greyscale */ - px_rgb.red = infoIn->background_r; - px_rgb.green = infoIn->background_g; - px_rgb.blue = infoIn->background_b; - background_grey = brightness(px_rgb); - - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - j = 3*i++; - - /* tRNs & bKGD */ - if (infoIn->color.key_defined && - in[j] == (uint8_t)infoIn->color.key_r && - in[j + 1] == (uint8_t)infoIn->color.key_g && - in[j + 2] == (uint8_t)infoIn->color.key_b) - { - *pixel = background_grey; - } - else - { - /* rgb -> greyscale */ - px_rgb.red = in[j]; - px_rgb.green = in[j + 1]; - px_rgb.blue = in[j + 2]; - *pixel = brightness(px_rgb); - } - pixel++; - - } - output_row_8(y,(void *)line_buf,&ctx); - } - break; - case PNG_COLORTYPE_PALETTE: /*indexed color (palette)*/ - i = 0; - /* calculate grey value of rgb background */ - px_rgb.red = infoIn->background_r; - px_rgb.green = infoIn->background_g; - px_rgb.blue = infoIn->background_b; - background_grey = brightness(px_rgb); - - for (y = 0 ; y < h ; y++) { - /* reset line buf */ - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - if (in[i] >= infoIn->color.palettesize) - { - decoder->error = 46; - return; - } - - j = in[i++] << 2; - alpha = infoIn->color.palette[j + 3]; - alpha_complement = (256 - alpha); - - /* tRNS and bKGD */ - px_rgb.red = (alpha * infoIn->color.palette[j] + - alpha_complement*background_grey)>>8; - px_rgb.green = (alpha * infoIn->color.palette[j + 1] + - alpha_complement*background_grey)>>8; - px_rgb.blue = (alpha * infoIn->color.palette[j + 2] + - alpha_complement*background_grey)>>8; - - *pixel++ = brightness(px_rgb); - } - output_row_8(y,(void *)(line_buf),&ctx); - } - break; - case PNG_COLORTYPE_GREYA: /*greyscale with alpha*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - alpha = in[(i << 1) + 1]; - alpha_complement = ((256 - alpha)*infoIn->background_r); - *pixel++ = (alpha * in[i++ << 1] + alpha_complement)>>8; + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_RGB: /*RGB color*/ + /* convert background rgb color to greyscale */ + px_rgb.red = infoIn->background_r; + px_rgb.green = infoIn->background_g; + px_rgb.blue = infoIn->background_b; + background_grey = brightness(px_rgb); + + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + j = 3*i++; + + /* tRNs & bKGD */ + if (infoIn->color.key_defined && + in[j] == (uint8_t)infoIn->color.key_r && + in[j + 1] == (uint8_t)infoIn->color.key_g && + in[j + 2] == (uint8_t)infoIn->color.key_b) + { + *pixel = background_grey; } - output_row_8(y,(void *)line_buf,&ctx); - } - break; - case PNG_COLORTYPE_RGBA: /*RGB with alpha*/ - px_rgb.red = infoIn->background_r; - px_rgb.green = infoIn->background_g; - px_rgb.blue = infoIn->background_b; - background_grey = brightness(px_rgb); - - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - j = i++ << 2; - alpha = in[j + 3]; - alpha_complement = ((256 - alpha)*background_grey); - + else + { + /* rgb -> greyscale */ px_rgb.red = in[j]; px_rgb.green = in[j + 1]; px_rgb.blue = in[j + 2]; - *pixel++ = (alpha * brightness(px_rgb) + - alpha_complement)>>8; + *pixel = brightness(px_rgb); } - output_row_8(y,(void *)line_buf,&ctx); + pixel++; + } - break; - default: - break; + output_row_8(y,(void *)line_buf,&ctx); } - } - else if (infoIn->color.bitDepth == 16) - { - switch (infoIn->color.colorType) - { - case PNG_COLORTYPE_GREY: /*greyscale color*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - /* specification states that we have to compare - * colors for simple transparency in 16bits - * even if we scale down to 8bits later - */ - value = in[i<<1]<<8|in[(i << 1) + 1]; - i++; - - /* tRNS and bKGD */ - if (infoIn->color.key_defined && - value == infoIn->color.key_r) - value = infoIn->background_r<<8; - - /* we take upper 8bits */ - *pixel++ = (uint8_t)(value>>8); + break; + case PNG_COLORTYPE_PALETTE: /*indexed color (palette)*/ + i = 0; + /* calculate grey value of rgb background */ + px_rgb.red = infoIn->background_r; + px_rgb.green = infoIn->background_g; + px_rgb.blue = infoIn->background_b; + background_grey = brightness(px_rgb); + + for (y = 0 ; y < h ; y++) { + /* reset line buf */ + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + if (in[i] >= infoIn->color.palettesize) + { + decoder->error = 46; + return; } - output_row_8(y,(void *)line_buf,&ctx); + j = in[i++] << 2; + alpha = infoIn->color.palette[j + 3]; + alpha_complement = (256 - alpha); + + /* tRNS and bKGD */ + px_rgb.red = (alpha * infoIn->color.palette[j] + + alpha_complement*background_grey)>>8; + px_rgb.green = (alpha * infoIn->color.palette[j + 1] + + alpha_complement*background_grey)>>8; + px_rgb.blue = (alpha * infoIn->color.palette[j + 2] + + alpha_complement*background_grey)>>8; + + *pixel++ = brightness(px_rgb); } - break; - case PNG_COLORTYPE_RGB: /*RGB color*/ - i = 0; - px_rgb.red = infoIn->background_r; - px_rgb.green = infoIn->background_g; - px_rgb.blue = infoIn->background_b; - background_grey = brightness(px_rgb); - - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - j = 6 * i++; - - /* tRNS and bKGD */ - if (infoIn->color.key_defined && - (uint16_t)(in[j]<<8|in[j + 1]) == - infoIn->color.key_r && - (uint16_t)(in[j + 2]<<8|in[j + 3]) == - infoIn->color.key_g && - (uint16_t)(in[j + 4]<<8|in[j + 5]) == - infoIn->color.key_b) - { - *pixel = background_grey; - } - else - { - /* we take only upper byte of 16bit value */ - px_rgb.red = in[j]; - px_rgb.green = in[j + 2]; - px_rgb.blue = in[j + 4]; - *pixel = brightness(px_rgb); - } - pixel++; - } - output_row_8(y,(void *)line_buf,&ctx); + output_row_8(y,(void *)(line_buf),&ctx); + } + break; + case PNG_COLORTYPE_GREYA: /*greyscale with alpha*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + alpha = in[(i << 1) + 1]; + alpha_complement = ((256 - alpha)*infoIn->background_r); + *pixel++ = (alpha * in[i++ << 1] + alpha_complement)>>8; } - break; - case PNG_COLORTYPE_GREYA: /*greyscale with alpha*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - alpha = in[(i << 2) + 2]; - alpha_complement = (256 - alpha)*infoIn->background_r; - *pixel++ = (alpha * in[i++ << 2] + alpha_complement)>>8; - } - output_row_8(y,(void *)line_buf,&ctx); + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_RGBA: /*RGB with alpha*/ + px_rgb.red = infoIn->background_r; + px_rgb.green = infoIn->background_g; + px_rgb.blue = infoIn->background_b; + background_grey = brightness(px_rgb); + + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + j = i++ << 2; + alpha = in[j + 3]; + alpha_complement = ((256 - alpha)*background_grey); + + px_rgb.red = in[j]; + px_rgb.green = in[j + 1]; + px_rgb.blue = in[j + 2]; + *pixel++ = (alpha * brightness(px_rgb) + + alpha_complement)>>8; } - break; - case PNG_COLORTYPE_RGBA: /*RGB with alpha*/ - px_rgb.red = infoIn->background_r; - px_rgb.green = infoIn->background_g; - px_rgb.blue = infoIn->background_b; - background_grey = brightness(px_rgb); - - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - j = i++ << 3; - alpha = in[j + 6]; - alpha_complement = (256 - alpha)*background_grey; + output_row_8(y,(void *)line_buf,&ctx); + } + break; + default: + break; + } + } + else if (infoIn->color.bitDepth == 16) + { + switch (infoIn->color.colorType) + { + case PNG_COLORTYPE_GREY: /*greyscale color*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + /* specification states that we have to compare + * colors for simple transparency in 16bits + * even if we scale down to 8bits later + */ + value = in[i<<1]<<8|in[(i << 1) + 1]; + i++; + + /* tRNS and bKGD */ + if (infoIn->color.key_defined && + value == infoIn->color.key_r) + value = infoIn->background_r<<8; + + /* we take upper 8bits */ + *pixel++ = (uint8_t)(value>>8); + } + + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_RGB: /*RGB color*/ + i = 0; + px_rgb.red = infoIn->background_r; + px_rgb.green = infoIn->background_g; + px_rgb.blue = infoIn->background_b; + background_grey = brightness(px_rgb); + + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + j = 6 * i++; + + /* tRNS and bKGD */ + if (infoIn->color.key_defined && + (uint16_t)(in[j]<<8|in[j + 1]) == + infoIn->color.key_r && + (uint16_t)(in[j + 2]<<8|in[j + 3]) == + infoIn->color.key_g && + (uint16_t)(in[j + 4]<<8|in[j + 5]) == + infoIn->color.key_b) + { + *pixel = background_grey; + } + else + { + /* we take only upper byte of 16bit value */ px_rgb.red = in[j]; px_rgb.green = in[j + 2]; px_rgb.blue = in[j + 4]; - *pixel++ = (alpha * brightness(px_rgb) + alpha_complement)>>8; + *pixel = brightness(px_rgb); } - output_row_8(y,(void *)line_buf,&ctx); + pixel++; } - break; - default: - break; + output_row_8(y,(void *)line_buf,&ctx); } + break; + case PNG_COLORTYPE_GREYA: /*greyscale with alpha*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + alpha = in[(i << 2) + 2]; + alpha_complement = (256 - alpha)*infoIn->background_r; + *pixel++ = (alpha * in[i++ << 2] + alpha_complement)>>8; + } + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_RGBA: /*RGB with alpha*/ + px_rgb.red = infoIn->background_r; + px_rgb.green = infoIn->background_g; + px_rgb.blue = infoIn->background_b; + background_grey = brightness(px_rgb); + + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + j = i++ << 3; + alpha = in[j + 6]; + alpha_complement = (256 - alpha)*background_grey; + px_rgb.red = in[j]; + px_rgb.green = in[j + 2]; + px_rgb.blue = in[j + 4]; + *pixel++ = (alpha * brightness(px_rgb) + alpha_complement)>>8; + } + output_row_8(y,(void *)line_buf,&ctx); + } + break; + default: + break; } - else /*infoIn->bitDepth is less than 8 bit per channel*/ + } + else /*infoIn->bitDepth is less than 8 bit per channel*/ + { + switch (infoIn->color.colorType) { - switch (infoIn->color.colorType) - { - case PNG_COLORTYPE_GREY: /*greyscale color*/ - i = 0; - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - value = readBitsFromReversedStream(&bp, in, infoIn->color.bitDepth); - - /* tRNS and bKGD */ - if (infoIn->color.key_defined) - if ( value == infoIn->color.key_r ) - value = infoIn->background_r; /* full transparent */ - - /*scale value from 0 to 255*/ - value = (value * 255) / ((1 << infoIn->color.bitDepth) - 1); - - *pixel++ = (unsigned char)value; - } - output_row_8(y,(void *)line_buf,&ctx); + case PNG_COLORTYPE_GREY: /*greyscale color*/ + i = 0; + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + value = readBitsFromReversedStream(&bp, in, infoIn->color.bitDepth); + + /* tRNS and bKGD */ + if (infoIn->color.key_defined) + if ( value == infoIn->color.key_r ) + value = infoIn->background_r; /* full transparent */ + + /*scale value from 0 to 255*/ + value = (value * 255) / ((1 << infoIn->color.bitDepth) - 1); + + *pixel++ = (unsigned char)value; } - break; - case PNG_COLORTYPE_PALETTE: /*indexed color (palette)*/ - i = 0; - px_rgb.red = infoIn->background_r; - px_rgb.green = infoIn->background_g; - px_rgb.blue = infoIn->background_b; - uint8_t background_grey = brightness(px_rgb); - - for (y = 0 ; y < h ; y++) { - pixel = line_buf; - for (x = 0 ; x < w ; x++) { - value = readBitsFromReversedStream(&bp, in, infoIn->color.bitDepth); - if (value >= infoIn->color.palettesize) - { - decoder->error = 47; - return; - } - - j = value << 2; - - /* tRNS and bKGD */ - alpha = infoIn->color.palette[j + 3]; - alpha_complement = (256 - alpha) * background_grey; - - px_rgb.red = (alpha * infoIn->color.palette[j] + - alpha_complement)>>8; - px_rgb.green = (alpha * infoIn->color.palette[j + 1] + - alpha_complement)>>8; - px_rgb.blue = (alpha * infoIn->color.palette[j + 2] + - alpha_complement)>>8; - *pixel++ = brightness(px_rgb); + output_row_8(y,(void *)line_buf,&ctx); + } + break; + case PNG_COLORTYPE_PALETTE: /*indexed color (palette)*/ + i = 0; + px_rgb.red = infoIn->background_r; + px_rgb.green = infoIn->background_g; + px_rgb.blue = infoIn->background_b; + uint8_t background_grey = brightness(px_rgb); + + for (y = 0 ; y < h ; y++) { + pixel = line_buf; + for (x = 0 ; x < w ; x++) { + value = readBitsFromReversedStream(&bp, in, infoIn->color.bitDepth); + if (value >= infoIn->color.palettesize) + { + decoder->error = 47; + return; } - output_row_8(y,(void *)line_buf,&ctx); + + j = value << 2; + + /* tRNS and bKGD */ + alpha = infoIn->color.palette[j + 3]; + alpha_complement = (256 - alpha) * background_grey; + + px_rgb.red = (alpha * infoIn->color.palette[j] + + alpha_complement)>>8; + px_rgb.green = (alpha * infoIn->color.palette[j + 1] + + alpha_complement)>>8; + px_rgb.blue = (alpha * infoIn->color.palette[j + 2] + + alpha_complement)>>8; + *pixel++ = brightness(px_rgb); } - break; - default: - break; + output_row_8(y,(void *)line_buf,&ctx); } + break; + default: + break; } + } #endif } @@ -1097,13 +1097,13 @@ static uint8_t unfilterScanline(uint8_t* recon, * disjoint. */ -/* storage space for cached portion of scanline */ -unsigned char cache[512+16]; + /* storage space for cached portion of scanline */ + unsigned char cache[512+16]; -/* ptr to second element of the cache */ -unsigned char *cache_1 = cache + bytewidth; -unsigned char *p_cache = cache + 256 + 8; /* half way */ -unsigned char *p_cache_1 = p_cache + bytewidth; + /* ptr to second element of the cache */ + unsigned char *cache_1 = cache + bytewidth; + unsigned char *p_cache = cache + 256 + 8; /* half way */ + unsigned char *p_cache_1 = p_cache + bytewidth; size_t i; switch (filterType) @@ -1192,7 +1192,7 @@ unsigned char *p_cache_1 = p_cache + bytewidth; memcpy(recon, cache, length); } } - else + else /* for(i = 0; i < length; i++) recon[i] = scanline[i]; */ memcpy(recon, scanline, length * sizeof(uint8_t)); break; @@ -1519,7 +1519,7 @@ static void Adam7_deinterlace(uint8_t* out, /* note that this function assumes the out buffer * is completely 0, use setBitOfReversedStream * otherwise*/ - setBitOfReversedStream0(&obp, out, bit); + setBitOfReversedStream0(&obp, out, bit); } } } @@ -1832,7 +1832,7 @@ static void decodeGeneric(LodePNG_Decoder* decoder) } decoder->infoPng.background_r = decoder->infoPng.color.palette[(data[0]<<2)]; - + decoder->infoPng.background_g = decoder->infoPng.color.palette[(data[0]<<2) | 1]; @@ -1880,7 +1880,7 @@ static void decodeGeneric(LodePNG_Decoder* decoder) */ decoder->error = 69; break; - } + } unknown = true; } @@ -2007,7 +2007,7 @@ void LodePNG_inspect(LodePNG_Decoder* decoder, uint8_t *in, size_t inlength) decoder->error = 29; return; } - + /* read the values given in the header */ decoder->infoPng.width = in[16]<<24|in[17]<<16|in[18]<<8|in[19]; decoder->infoPng.height = in[20]<<24|in[21]<<16|in[22]<<8|in[23]; @@ -2080,7 +2080,7 @@ void LodePNG_decode(LodePNG_Decoder* decoder, /* one line more as temp buffer for conversion */ #ifdef HAVE_LCD_COLOR decoder->native_img_size = decoder->infoPng.width * - (decoder->infoPng.height)*FB_DATA_SZ; + decoder->infoPng.height * FB_DATA_SZ; line_buf_size = decoder->infoPng.width * sizeof(struct uint8_rgb); #else decoder->native_img_size = decoder->infoPng.width * @@ -2134,11 +2134,9 @@ void LodePNG_decode(LodePNG_Decoder* decoder, { /* calculate 'corrected' image size */ #ifdef HAVE_LCD_COLOR - c_native_img_size = dim_dst.width * - (dim_dst.height)*FB_DATA_SZ; + c_native_img_size = dim_dst.width * dim_dst.height * FB_DATA_SZ; #else - c_native_img_size = dim_dst.width * - dim_dst.height; + c_native_img_size = dim_dst.width * dim_dst.height; #endif /* check memory constraints * do the correction only if there is enough @@ -2165,15 +2163,15 @@ void LodePNG_decode(LodePNG_Decoder* decoder, decoder->infoPng.width = img_dst.width; decoder->infoPng.height = img_dst.height; decoder->native_img_size = c_native_img_size; - + /* copy back corrected image to the begining of the buffer */ memcpy(img_src.data, img_dst.data, decoder->native_img_size); } } - #endif /* (LCD_PIXEL_ASPECT_HEIGHT != 1 || LCD_PIXEL_ASPECT_WIDTH != 1) */ -time = *rb->current_tick - time; -if (pf_progress) pf_progress(100, 100); + + time = *rb->current_tick - time; + if (pf_progress) pf_progress(100, 100); } void LodePNG_Decoder_init(LodePNG_Decoder* decoder, diff --git a/apps/plugins/imageviewer/png/tinflate.c b/apps/plugins/imageviewer/png/tinflate.c index b142f7afe7..95d8e2b483 100644 --- a/apps/plugins/imageviewer/png/tinflate.c +++ b/apps/plugins/imageviewer/png/tinflate.c @@ -148,7 +148,7 @@ TINF_TABLES tbl = { 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f}, }, - + .length_bits = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04, @@ -494,7 +494,7 @@ int tinf_uncompress(void *dest, unsigned int *destLen, } if (res != TINF_OK) return TINF_DATA_ERROR; - + if (d.source > (unsigned char *)source + sourceLen) return TINF_DATA_ERROR; } while (!bfinal); -- cgit v1.2.3