1 /* Project 16 Source Code~
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2 * Copyright (C) 2012-2016 sparky4 & pngwen & andrius4669 & joncampbell123 & yakui-lover
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4 * This file is part of Project 16.
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6 * Project 16 is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 3 of the License, or
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9 * (at your option) any later version.
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11 * Project 16 is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>, or
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18 * write to the Free Software Foundation, Inc., 51 Franklin Street,
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19 * Fifth Floor, Boston, MA 02110-1301 USA.
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26 #include "src/lib/bitmap.h"
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28 static struct pcxHeader {
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48 static void loadPcxStage1(FILE *file, bitmap_t *result) {
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54 /* read the header */
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55 fread(&head, sizeof(char), sizeof(struct pcxHeader), file);
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57 /* get the width and height */
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58 result->width = head.xmax - head.xmin + 1;
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59 result->height = head.ymax - head.ymin + 1;
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61 /* make sure this is 8bpp */
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63 printf("I only know how to handle 8bpp pcx files!\n");
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70 static void loadPcxPalette(FILE *file, bitmap_t *result) {
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74 /* handle the palette */
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75 fseek(file, -769, SEEK_END);
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77 result->palette = modexNewPal();
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78 if(head.version == 5 && val == 12) {
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79 /* use the vga palette */
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80 for(index=0; !feof(file) && index < PAL_SIZE; index++) {
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82 result->palette[index] = val >> 2;
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85 /* use the 16 color palette */
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86 for(index=0; index<48; index++) {
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87 result->palette[index] = head.pal16[index];
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94 bitmapLoadPcx(char *filename) {
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101 /* open the PCX file for reading */
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102 file = fopen(filename, "rb");
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104 printf("Could not open %s for reading.\n", filename);
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108 /* load the first part of the pcx file */
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109 loadPcxStage1(file, &result);
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111 /* allocate the buffer */
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112 //printf("%zu\n", _memmax());
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113 bufSize = (/*(dword)*/result.width * result.height);
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114 result.data = _fmalloc(bufSize);
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115 // result.data = (byte far *)_fmalloc(bufSize);
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116 // result.data = (byte __huge *)halloc(bufSize, sizeof(byte));
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117 /*printf("&bufSize=%p\n", &bufSize);
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118 printf("&result.data=%p\n", result.data);
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119 printf("Size of block is %zu bytes\n", _msize(result.data));
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120 printf("Size of bufSize is %zu bytes\n", bufSize);
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121 printf("Size of result.width is %zu \n", result.width);
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122 printf("Size of result.height is %zu \n", result.height);
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123 printf("Dimensions of result is %lu\n", (dword)result.width*result.height);*/
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126 fprintf(stderr, "Could not allocate memory for bitmap data.");
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131 /* read the buffer in */
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134 /* get the run length and the value */
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135 count = fgetc(file);
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136 if(0xC0 == (count & 0xC0)) { /* this is the run count */
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144 /* write the pixel the specified number of times */
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145 for(; count && index < bufSize; count--,index++) {
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146 result.data[index] = val;
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148 } while(index < bufSize);
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149 //printf("index=%d\n", index);
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151 loadPcxPalette(file, &result);
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160 bitmapLoadPcxTiles(char *filename, word twidth, word theight) {
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166 /* open the PCX file for reading */
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167 file = fopen(filename, "rb");
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169 printf("Could not open %s for reading.\n", filename);
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173 /* load the first part of the pcx file */
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174 loadPcxStage1(file, &result);
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176 /* get the number of tiles and set up the result structure */
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177 ts.twidth = twidth;
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178 ts.theight = theight;
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179 ts.ntiles = (result.width/twidth) * (result.height/theight);
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180 ts.palette = result.palette;
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182 /* allocate the pixel storage for the tiles */
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183 ts.data = malloc(sizeof(byte*) * ts.ntiles);
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184 //ts.data[0] = malloc(sizeof(byte) * ts.ntiles * twidth * theight);
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185 for(i=1; i < ts.ntiles; i++) {
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186 ts.data[i] = ts.data[i-1] + twidth * theight;
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189 /* finish off the file */
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190 loadPcxPalette(file, &result);
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