patch by Artur Wyszynski (aljen):
* Added a tool to generate the "image.h" header from supplied PNGs, which is going to be used by the new boot splash code. TODO: Integrate this whole thing as a build system tool, complete with source PNGs in the artwork folder. I am also in favor of renaming it to something like "splash_gen" or similar if it has to be short. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24433 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus
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//------------------------------------------------------------------------------
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// Copyright (c) 2008, Haiku, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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// File Name: hbsg.cpp
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// Author: Artur Wyszynski <[email protected]>
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// Description: Haiku Boot Splash Generator
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//
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//------------------------------------------------------------------------------
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#include <string>
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#include <iostream>
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#include <png.h>
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int x, y;
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int width, height;
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png_byte colorType;
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png_byte bpp;
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png_structp pngPtr;
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png_infop infoPtr;
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int noOfPasses;
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png_bytep* rowPtrs;
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FILE* finput = NULL;
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FILE* foutput = NULL;
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png_colorp palette;
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int paletteColors = 0;
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void
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cleanup()
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{
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fclose(finput);
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fclose(foutput);
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}
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void
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error(const char *s, ...)
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{
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va_list args;
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va_start(args, s);
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vfprintf(stderr, s, args);
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fprintf(stderr, "\n");
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va_end(args);
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cleanup();
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exit(-1);
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}
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void
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readPNG(char *filename)
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{
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printf("Reading file %s\n", filename);
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char header[8];
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finput = fopen(filename, "rb");
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if (!finput)
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error("[readPNG] File %s could not be opened for reading", filename);
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fread(header, 1, 8, finput);
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if (png_sig_cmp((png_byte *)header, 0, 8 ))
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error("[readPNG] File %s is not recognized as a PNG file", filename);
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pngPtr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
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if (!pngPtr)
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error("[readPNG] png_create_read_struct failed");
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infoPtr = png_create_info_struct(pngPtr);
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if (!infoPtr)
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error("[readPNG] png_create_info_struct failed");
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if (setjmp(png_jmpbuf(pngPtr)))
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error("[readPNG] Error during init_io");
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png_init_io(pngPtr, finput);
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png_set_sig_bytes(pngPtr, 8);
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png_read_info(pngPtr, infoPtr);
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width = infoPtr->width;
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height = infoPtr->height;
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colorType = infoPtr->color_type;
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bpp = infoPtr->bit_depth;
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noOfPasses = png_set_interlace_handling(pngPtr);
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png_read_update_info(pngPtr, infoPtr);
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if (setjmp(png_jmpbuf(pngPtr)))
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error("[readPNG] Error during read_image");
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rowPtrs = (png_bytep*)malloc(sizeof(png_bytep) * height);
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for ( y = 0; y < height; y++)
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rowPtrs[y] = (png_byte*)malloc(infoPtr->rowbytes);
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png_read_image(pngPtr, rowPtrs);
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png_get_PLTE(pngPtr, infoPtr, &palette, &paletteColors);
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fclose(finput);
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printf("[PNG] width:\t%d\n", width);
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printf("[PNG] height:\t%d\n", height);
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printf("[PNG] bpp:\t%d\n", bpp);
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printf("[PNG] palette:\t%d\n", paletteColors);
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}
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void
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writeHeader(char *filename)
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{
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int length = strlen(filename) - 4;
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char *varName = NULL;
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varName = new char[length];
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memset(varName, 0, sizeof(char) * length);
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strncat(varName, filename, length);
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printf("Exporting image %s\n", varName);
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// dumping palette
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char *line = new char[80];
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sprintf(line, "static const uint8 %sPalette[] = {\n", varName);
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fwrite(line, strlen(line), 1, foutput);
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for (int i = 0; i < paletteColors; i++) {
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if (i == paletteColors - 1)
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sprintf(line, "\t0x%x, 0x%x, 0x%x\n", palette[i].red, palette[i].green, palette[i].blue);
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else
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sprintf(line, "\t0x%x, 0x%x, 0x%x,\n", palette[i].red, palette[i].green, palette[i].blue);
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fwrite(line, strlen(line), 1, foutput);
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}
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fwrite("};\n\n", strlen("};\n\n"), 1, foutput);
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sprintf(line, "static const uint %sWidth=%d;\n", varName, width);
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fwrite(line, strlen(line), 1, foutput);
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sprintf(line, "static const uint %sHeight=%d;\n", varName, height);
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fwrite(line, strlen(line), 1, foutput);
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sprintf(line, "static const uint8 %sImage[] = {\n\t", varName);
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fwrite(line, strlen(line), 1, foutput);
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int offset = 0;
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unsigned char *data = new unsigned char[width * height];
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for (y = 0; y < height; y++) {
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png_byte* row = rowPtrs[y];
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for (x = 0; x < width; x++) {
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png_byte* ptr = &row[x];
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offset = (y * width) + x;
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data[offset] = ptr[0];
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}
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}
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bool end = false;
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offset = 0;
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while (!end) {
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if (offset == (width * height)) {
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sprintf(line, "0x%x", data[offset]);
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end = true;
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}
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else
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sprintf(line, "0x%x, ", data[offset]);
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fwrite(line, strlen(line), 1, foutput);
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if ((offset % 8) == 0) {
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fwrite("\n\t", strlen("\n\t"), 1, foutput);
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}
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offset++;
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}
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fwrite("};\n\n", strlen("};\n\n"), 1, foutput);
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delete varName;
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}
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void
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parseImage(char *filename)
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{
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readPNG(filename);
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writeHeader(filename);
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}
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int
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main(int argc, char *argv[])
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{
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printf("Haiku Boot Splash Generator\n");
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printf("Copyright 2008, Artur Wyszynski <[email protected]>\n");
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printf("Distributed under the terms of the Haiku License. All rights reserved.\n");
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if (argc < 4) {
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printf("Usage:\n");
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printf("\thbsg splash.png icons.png copyright.png\n");
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return 0;
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}
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foutput = fopen("images.h", "wb");
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if (!foutput)
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error("Could not open file images.h for writing");
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fwrite("// This file was generated by Haiku Boot Splash Generator\n\n",
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strlen("// This file was generated by Haiku Boot Splash Generator\n\n"), 1, foutput);
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parseImage(argv[1]);
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parseImage(argv[2]);
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parseImage(argv[3]);
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fclose(foutput);
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return 0;
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}
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