From 421d796e9b462939de9e9e116e09e9384a8ba5bc Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Mon, 22 Jun 2020 10:49:34 +0100 Subject: split tools and utils --- utils/convert_image.c | 304 -------------------------------------------------- 1 file changed, 304 deletions(-) delete mode 100644 utils/convert_image.c (limited to 'utils/convert_image.c') diff --git a/utils/convert_image.c b/utils/convert_image.c deleted file mode 100644 index de772fc29..000000000 --- a/utils/convert_image.c +++ /dev/null @@ -1,304 +0,0 @@ -/* - * Copyright 2009 Daniel Silverstone - * - * This file is part of NetSurf, http://www.netsurf-browser.org/ - * - * NetSurf 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; version 2 of the License. - * - * NetSurf is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#include -#include -#include -#include -#include -#include - -#if PNG_LIBPNG_VER < 10209 -#define png_set_expand_gray_1_2_4_to_8(png) png_set_gray_1_2_4_to_8(png) -#endif - -static png_structp png; -static png_infop info; -static int interlace; -static size_t rowbytes; -static int raw_width, raw_height; -static int rowstride; -static unsigned char *bitmap_data; -static bool is_cursor = true; -static int raw_hot_x, raw_hot_y; - -#define WIDTH (is_cursor?raw_width-1:raw_width) -#define HEIGHT (is_cursor?raw_height-1:raw_height) - -#define HOT_X (is_cursor?raw_hot_x-1:0) -#define HOT_Y (is_cursor?raw_hot_y-1:0) - -#define REAL(v) (is_cursor?v+1:v) - -#define PPIX_AT(x,y) ((bitmap_data + (rowstride * y)) + (x * 4)) - -#define R_OFF 2 -#define G_OFF 1 -#define B_OFF 0 -#define A_OFF 3 - -#define R_AT(x,y) *(PPIX_AT(x,y) + R_OFF) -#define G_AT(x,y) *(PPIX_AT(x,y) + G_OFF) -#define B_AT(x,y) *(PPIX_AT(x,y) + B_OFF) -#define A_AT(x,y) *(PPIX_AT(x,y) + A_OFF) - - -static void -usage(void) -{ - fprintf(stderr, "usage: fb_convert_image input.png output.inc varname\n"); -} - - -static void -detect_hotspot(void) -{ - int i; - int greenpixels = 0; - - for (i = 0; i < raw_width; ++i) { - if (A_AT(i, 0) == 255) { - if (G_AT(i, 0) == 255) { - greenpixels++; - raw_hot_x = i; - } - if ((B_AT(i, 0) != 0) || (R_AT(i, 0) != 0)) { - is_cursor = false; - return; - } - } else if (A_AT(i, 0) != 0) { - is_cursor = false; - return; - } - } - if (greenpixels != 1) { - is_cursor = false; - return; - } - - for (i = 0; i < raw_height; ++i) { - if (A_AT(0, i) == 255) { - if (G_AT(0, i) == 255) { - greenpixels++; - raw_hot_y = i; - } - if ((B_AT(0, i) != 0) || (R_AT(0, i) != 0)) { - is_cursor = false; - return; - } - } else if (A_AT(0, i) != 0) { - is_cursor = false; - return; - } - } - if (greenpixels != 2) { - is_cursor = false; - return; - } - printf(" Pointer detected. Adjusted hotspot at %d, %d (0-based)\n", - raw_hot_x - 1, raw_hot_y - 1); -} - - -static void -info_callback(png_structp png, png_infop info) -{ - int bit_depth, color_type, interlace, intent; - double gamma; - png_uint_32 width, height; - - /* Read the PNG details */ - png_get_IHDR(png, info, &width, &height, &bit_depth, - &color_type, &interlace, 0, 0); - - /* Set up our transformations */ - if (color_type == PNG_COLOR_TYPE_PALETTE) - png_set_palette_to_rgb(png); - if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) - png_set_expand_gray_1_2_4_to_8(png); - if (png_get_valid(png, info, PNG_INFO_tRNS)) - png_set_tRNS_to_alpha(png); - if (bit_depth == 16) - png_set_strip_16(png); - if (color_type == PNG_COLOR_TYPE_GRAY || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - png_set_gray_to_rgb(png); - if (!(color_type & PNG_COLOR_MASK_ALPHA)) - png_set_filler(png, 0xff, PNG_FILLER_AFTER); - /* gamma correction - we use 2.2 as our screen gamma - * this appears to be correct (at least in respect to !Browse) - * see http://www.w3.org/Graphics/PNG/all_seven.html for a test case - */ - if (png_get_sRGB(png, info, &intent)) - png_set_gamma(png, 2.2, 0.45455); - else { - if (png_get_gAMA(png, info, &gamma)) - png_set_gamma(png, 2.2, gamma); - else - png_set_gamma(png, 2.2, 0.45455); - } - - - png_read_update_info(png, info); - - rowbytes = png_get_rowbytes(png, info); - interlace = (interlace == PNG_INTERLACE_ADAM7); - raw_width = width; - raw_height = height; - - rowstride = raw_width * 4; - bitmap_data = malloc(rowstride * raw_height); -} - -static unsigned int interlace_start[8] = {0, 16, 0, 8, 0, 4, 0}; -static unsigned int interlace_step[8] = {28, 28, 12, 12, 4, 4, 0}; -static unsigned int interlace_row_start[8] = {0, 0, 4, 0, 2, 0, 1}; -static unsigned int interlace_row_step[8] = {8, 8, 8, 4, 4, 2, 2}; - -static void -row_callback(png_structp png, png_bytep new_row, - png_uint_32 row_num, int pass) -{ - unsigned long i, j; - unsigned int start, step; - unsigned char *row = bitmap_data + (rowstride * row_num); - - if (new_row == 0) - return; - - if (interlace) { - start = interlace_start[pass]; - step = interlace_step[pass]; - row_num = interlace_row_start[pass] + - interlace_row_step[pass] * row_num; - - /* Copy the data to our current row taking interlacing - * into consideration */ - row = bitmap_data + (rowstride * row_num); - for (j = 0, i = start; i < rowbytes; i += step) { - row[i++] = new_row[j++]; - row[i++] = new_row[j++]; - row[i++] = new_row[j++]; - row[i++] = new_row[j++]; - } - } else { - memcpy(row, new_row, rowbytes); - } -} - -static void -end_callback(png_structp png, png_infop info) -{ -} - - -int -main(int argc, char **argv) -{ - FILE *f; - unsigned char buffer[1024]; - int br; - int x, y, c; - - if (argc != 4) { - usage(); - return 1; - } - - printf(" CONVERT: %s (%s)\n", argv[1], argv[3]); - - png = png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, 0, 0); - info = png_create_info_struct(png); - - png_set_progressive_read_fn(png, NULL, info_callback, row_callback, end_callback); - - f = fopen(argv[1], "rb"); - if (f == NULL) { - printf(" Unable to open %s\n", argv[1]); - return 1; - } - - do { - br = fread(buffer, 1, 1024, f); - if (br > 0) { - png_process_data(png, info, buffer, br); - } - } while (br > 0); - - if (br < 0) { - printf("Error reading input: %s\n", strerror(errno)); - fclose(f); - return 1; - } - - fclose(f); - - detect_hotspot(); - - f = fopen(argv[2], "w"); - if (f == NULL) { - printf(" Unable to open %s\n", argv[2]); - return 2; - } - - fprintf(f, "/* This file is auto-generated from %s\n", argv[1]); - fprintf(f, " *\n * Do not edit this file directly.\n */\n\n"); - fprintf(f, "#include \n\n"); - fprintf(f, "#include \n\n"); - fprintf(f, "#include \n\n"); - fprintf(f, "#include \n\n"); - fprintf(f, "#include \"netsurf/plot_style.h\"\n"); - fprintf(f, "#include \"framebuffer/gui.h\"\n"); - fprintf(f, "#include \"framebuffer/fbtk.h\"\n\n"); - - fprintf(f, "static uint8_t %s_pixdata[] = {\n", argv[3]); - for (y = 0; y < HEIGHT; ++y) { - unsigned char *rowptr = bitmap_data + (rowstride * y); - if (is_cursor) { - /* If it's a cursor, skip one row and one column */ - rowptr += rowstride + 4; - } - fprintf(f, "\t"); - for (x = 0; x < WIDTH; ++x) { - for (c = 0; c < 4; ++c) { - unsigned char b = *rowptr++; - fprintf(f, "0x%02x, ", b); - } - } - fprintf(f, "\n"); - } - fprintf(f, "};\n\n"); - - fprintf(f, "struct fbtk_bitmap %s = {\n", argv[3]); - fprintf(f, "\t.width\t\t= %d,\n", WIDTH); - fprintf(f, "\t.height\t\t= %d,\n", HEIGHT); - fprintf(f, "\t.hot_x\t\t= %d,\n", HOT_X); - fprintf(f, "\t.hot_y\t\t= %d,\n", HOT_Y); - fprintf(f, "\t.pixdata\t= %s_pixdata,\n", argv[3]); - - fprintf(f, "};\n\n"); - fclose(f); - - return 0; -} - -/* - * Local Variables: - * c-basic-offset:8 - * End: - */ -- cgit v1.2.3