1 /* Project 16 Source Code~
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2 * Copyright (C) 2012-2015 sparky4 & pngwen & andrius4669
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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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27 #include "src/lib/modex16.h"
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31 static struct pcxHeader {
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50 #endif /*PCXHEADER_H*/
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53 static void loadPcxStage1(FILE *file, bitmap_t *result) {
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59 /* read the header */
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60 fread(&head, sizeof(char), sizeof(struct pcxHeader), file);
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62 /* get the width and height */
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63 result->width = head.xmax - head.xmin + 1;
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64 result->height = head.ymax - head.ymin + 1;
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66 /* make sure this is 8bpp */
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68 printf("I only know how to handle 8bpp pcx files!\n");
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75 static void loadPcxPalette(FILE *file, bitmap_t *result) {
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79 /* handle the palette */
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80 fseek(file, -769, SEEK_END);
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82 result->palette = modexNewPal();
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83 if(head.version == 5 && val == 12) {
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84 /* use the vga palette */
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85 for(index=0; !feof(file) && index < PAL_SIZE; index++) {
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87 result->palette[index] = val >> 2;
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90 /* use the 16 color palette */
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91 for(index=0; index<48; index++) {
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92 result->palette[index] = head.pal16[index];
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99 bitmapLoadPcx(char *filename) {
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106 /* open the PCX file for reading */
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107 file = fopen(filename, "rb");
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109 printf("Could not open %s for reading.\n", filename);
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113 /* load the first part of the pcx file */
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114 loadPcxStage1(file, &result);
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116 /* allocate the buffer */
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117 //printf("%zu\n", _memmax());
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118 bufSize = (/*(dword)*/result.width * result.height);
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119 result.data = malloc(bufSize);
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120 // result.data = (byte far *)_fmalloc(bufSize);
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121 // result.data = (byte __huge *)halloc(bufSize, sizeof(byte));
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122 /*printf("&bufSize=%p\n", &bufSize);
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123 printf("&result.data=%p\n", result.data);
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124 printf("Size of block is %zu bytes\n", _msize(result.data));
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125 printf("Size of bufSize is %zu bytes\n", bufSize);
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126 printf("Size of result.width is %zu \n", result.width);
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127 printf("Size of result.height is %zu \n", result.height);
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128 printf("Dimensions of result is %lu\n", (dword)result.width*result.height);*/
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131 fprintf(stderr, "Could not allocate memory for bitmap data.");
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136 /* read the buffer in */
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139 /* get the run length and the value */
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140 count = fgetc(file);
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141 if(0xC0 == (count & 0xC0)) { /* this is the run count */
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149 /* write the pixel the specified number of times */
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150 for(; count && index < bufSize; count--,index++) {
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151 result.data[index] = val;
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153 } while(index < bufSize);
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155 loadPcxPalette(file, &result);
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164 bitmapLoadPcxTiles(char *filename, word twidth, word theight) {
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170 /* open the PCX file for reading */
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171 file = fopen(filename, "rb");
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173 printf("Could not open %s for reading.\n", filename);
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177 /* load the first part of the pcx file */
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178 loadPcxStage1(file, &result);
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180 /* get the number of tiles and set up the result structure */
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181 ts.twidth = twidth;
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182 ts.theight = theight;
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183 ts.ntiles = (result.width/twidth) * (result.height/theight);
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184 ts.palette = result.palette;
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186 /* allocate the pixel storage for the tiles */
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187 ts.data = malloc(sizeof(byte*) * ts.ntiles);
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188 ts.data[0] = malloc(sizeof(byte) * ts.ntiles * twidth * theight);
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189 for(i=1; i < ts.ntiles; i++) {
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190 ts.data[i] = ts.data[i-1] + twidth * theight;
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193 /* finish off the file */
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194 loadPcxPalette(file, &result);
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