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-rw-r--r--src/tools/data.c440
1 files changed, 440 insertions, 0 deletions
diff --git a/src/tools/data.c b/src/tools/data.c
new file mode 100644
index 0000000..1da39b7
--- /dev/null
+++ b/src/tools/data.c
@@ -0,0 +1,440 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#include "data.h"
+
+unsigned char *Pal_3_4(unsigned char *dat)
+{
+ unsigned char *buf;
+ int i;
+
+ buf = (unsigned char *)malloc(256 * 4);
+
+ for (i = 0; i < 256; i++) {
+ buf[i*4+0] = dat[i*3+0];
+ buf[i*4+1] = dat[i*3+1];
+ buf[i*4+2] = dat[i*3+2];
+ buf[i*4+3] = 0xFF;
+ }
+ buf[3] = 0;
+
+ free(dat);
+
+ return buf;
+}
+
+unsigned char *Pixel_BGR_RGB(unsigned char *data, int length)
+{
+ int x;
+ unsigned char *ptr;
+ unsigned char tmp;
+
+ if (length % 3)
+ return data;
+
+ length /= 3;
+
+ ptr = data;
+ for (x = 0; x < length; x++) {
+ tmp = *ptr;
+ *ptr = *(ptr + 2);
+ *(ptr + 2) = tmp;
+ ptr += 3;
+ }
+
+ return data;
+}
+
+unsigned char *Pixel_BGRA_RGBA(unsigned char *data, int length)
+{
+ int x;
+ unsigned char *ptr;
+ unsigned char tmp;
+
+ if (length & 3)
+ return data;
+
+ length /= 4;
+
+ ptr = data;
+ for (x = 0; x < length; x++) {
+ tmp = *ptr;
+ *ptr = *(ptr + 2);
+ *(ptr + 2) = tmp;
+ ptr += 4;
+ }
+
+ return data;
+}
+
+unsigned char *Pixel_256_RGB(unsigned char *data, unsigned char *pal, int length)
+{
+ unsigned char *buf;
+ int x;
+
+ buf = (unsigned char *)malloc(length * 3);
+
+ for (x = 0; x < length; x++) {
+ buf[x*3+0] = pal[data[x]*3+0];
+ buf[x*3+1] = pal[data[x]*3+1];
+ buf[x*3+2] = pal[data[x]*3+2];
+ }
+
+ return buf;
+}
+
+unsigned char *Pixel_256_RGBA(unsigned char *data, unsigned char *pal, int length, int trans)
+{
+ unsigned char *buf;
+ int x;
+
+ buf = (unsigned char *)malloc(length * 4);
+
+ for (x = 0; x < length; x++) {
+ buf[x*4+0] = pal[data[x]*3+0];
+ buf[x*4+1] = pal[data[x]*3+1];
+ buf[x*4+2] = pal[data[x]*3+2];
+ if (data[x] == trans)
+ buf[x*4+3] = 0;
+ else
+ buf[x*4+3] = 0xFF;
+ }
+
+ return buf;
+}
+
+unsigned char *LoadTGA(char *filename, int *width, int *height)
+{
+ FILE *fp;
+ unsigned char *buf;
+ int len;
+ int x, y, w, h;
+
+ fp = fopen(filename, "rb");
+ if (fp == NULL)
+ return NULL;
+
+ fseek(fp, 0, SEEK_END);
+ len = ftell(fp);
+ rewind(fp);
+
+ buf = (unsigned char *)malloc(len);
+ fread(buf, len, 1, fp);
+ fclose(fp);
+
+ len = buf[0];
+
+ printf("one");
+
+ if (buf[1] != 0)
+ return NULL;
+
+ printf("one");
+
+ if (buf[2] != 2)
+ return NULL;
+
+ printf("one");
+
+ x = buf[8] | (buf[9] << 8);
+ y = buf[10] | (buf[11] << 8);
+ w = buf[12] | (buf[13] << 8);
+ h = buf[14] | (buf[15] << 8);
+
+ if (buf[16] != 24)
+ return NULL;
+
+ printf("one");
+
+ printf("buf 17 = %d\n", buf[17]);
+
+ if (buf[17] != 32)
+ return NULL;
+
+ printf("one");
+
+ *width = (w - x);
+ *height = (h - y);
+
+ return Pixel_BGR_RGB(&buf[18 + len], *width * *height * 3);
+}
+
+void SaveTGA()
+{
+}
+
+unsigned char *LoadPCX(char *filename, unsigned char **pal, int *width, int *height)
+{
+ pcx_header pcx;
+ FILE *fp;
+ unsigned char *buf, *ptr;
+ int i, j, n, x, y, ch;
+
+ fp = fopen(filename, "rb");
+ if (fp == NULL)
+ return NULL;
+
+ fread(&pcx, sizeof(pcx), 1, fp);
+
+ if (pcx.manufacturer != 10)
+ return NULL;
+
+ if (pcx.version != 5)
+ return NULL;
+
+ if (pcx.encoding != 1)
+ return NULL;
+
+ if (pcx.bits_per_pixel != 8)
+ return NULL;
+
+ if (pcx.num_color_planes != 1)
+ return NULL;
+
+ if (pcx.palette_type != 1)
+ return NULL;
+
+ x = pcx.width - pcx.x + 1;
+ y = pcx.height - pcx.y + 1;
+
+ buf = (unsigned char *)malloc(x * y);
+
+ ptr = buf;
+ for (i = 0; i < (x * y); i++) {
+ ch = fgetc(fp);
+ if (ch == -1)
+ return NULL;
+ if (ch > 0xC0) {
+ n = ch - 0xC1; /* 0xC0 */
+ ch = fgetc(fp);
+ for (j = 0; j < n; j++) {
+ *ptr = (unsigned char)ch;
+ ptr++;
+ i++;
+ }
+ }
+ *ptr = (unsigned char)ch;
+ ptr++;
+ }
+
+ fgetc(fp);
+
+ ptr = (unsigned char *)malloc(768);
+ for (i = 0; i < 768; i++) {
+ ptr[i] = (unsigned char)fgetc(fp);
+ }
+
+ fclose(fp);
+
+ *pal = ptr;
+ *width = x;
+ *height = y;
+
+ return buf;
+}
+
+unsigned char *LoadPCX_RGB(char *filename, int *width, int *height)
+{
+ unsigned char *pal;
+ unsigned char *dat, *dat2;
+
+ dat = LoadPCX(filename, &pal, width, height);
+
+ if (dat == NULL)
+ return NULL;
+
+ dat2 = Pixel_256_RGB(dat, pal, *width * *height);
+ free(dat);
+ free(pal);
+
+ return dat2;
+}
+
+unsigned char *LoadPCX_RGBA(char *filename, int *width, int *height)
+{
+ unsigned char *pal;
+ unsigned char *dat, *dat2;
+
+ dat = LoadPCX(filename, &pal, width, height);
+
+ if (dat == NULL)
+ return NULL;
+
+ dat2 = Pixel_256_RGBA(dat, pal, *width * *height, 0);
+ free(dat);
+ free(pal);
+
+ return dat2;
+}
+
+void SavePCX(unsigned char *buf, int width, int height, unsigned char *pal, char *name)
+{
+ FILE *fp;
+ pcx_header ph;
+ unsigned char *dat, *ptr, *ptrd, ch;
+ int x, y, z;
+
+ ph.manufacturer = 10;
+ ph.version = 5;
+ ph.encoding = 1;
+ ph.bits_per_pixel = 8;
+ ph.x = ph.y = 0;
+ ph.width = width - 1;
+ ph.height = height - 1;
+ ph.horz_res = ph.virt_res = 0; /* ? */
+ for (x = 0; x < sizeof(ph.ega_palette); x++)
+ ph.ega_palette[x] = 0;
+ ph.reserved = 0;
+ ph.num_color_planes = 1;
+ ph.byte_per_line = width;
+ ph.palette_type = 1;
+ ph.hscreen_size = width;
+ ph.vscreen_size = height;
+ for (x = 0; x < sizeof(ph.padding); x++)
+ ph.padding[x] = 0;
+
+#if 0
+ dat = malloc(width * height * 2);
+ for (x = 0; x < width * height; x++) {
+ *(dat + x*2) = 0xC1;
+ *(dat + x*2+1) = *(buf + x);
+ }
+#endif
+
+ dat = malloc(width * height * 2);
+ ptr = buf; ptrd = dat;
+ x = 0; z = 0;
+ while (x < width * height) {
+ ch = *ptr;
+ ptr++;
+ x++;
+ y = 0xC1;
+ while((x < width * height) && (*ptr == ch) && (y < 0xFF)) {
+ x++; y++; ptr++;
+ }
+ *ptrd = y;
+ ptrd++;
+ *ptrd = ch;
+ ptrd++;
+ z += 2;
+ }
+ dat = realloc(dat, z);
+
+ fp = fopen(name, "w");
+ fwrite(&ph, sizeof(ph), 1, fp);
+ fwrite(dat, 1, z, fp);
+ fputc(12, fp);
+ fwrite(pal, 1, 768, fp);
+ fclose(fp);
+
+ free(dat);
+
+ return;
+}
+
+void SavePCX256ToFile(unsigned char *buf, int width, int height, unsigned char *pal, char *name)
+{
+ FILE *fp;
+ pcx_header ph;
+ unsigned char *dat, *ptr, *ptrd, ch;
+ int x, y, z;
+
+ memset(&ph, 0, sizeof(ph));
+
+ ph.manufacturer = 10;
+ ph.version = 5;
+ ph.encoding = 1;
+ ph.bits_per_pixel = 8;
+ ph.x = ph.y = 0;
+ ph.width = width - 1;
+ ph.height = height - 1;
+ ph.horz_res = ph.virt_res = 0;
+ ph.reserved = 0;
+ ph.num_color_planes = 1;
+ ph.byte_per_line = width;
+ ph.palette_type = 1;
+ ph.hscreen_size = width;
+ ph.vscreen_size = height;
+
+ dat = (unsigned char *)malloc(width * height * 2);
+
+ ptr = buf; ptrd = dat;
+ x = 0; z = 0;
+ while (x < (width * height)) {
+ ch = *ptr;
+ ptr++;
+ x++;
+ y = 0xC1;
+ while((x < (width * height)) && (*ptr == ch) && (y < 0xFF)) {
+ x++; y++; ptr++;
+ }
+ if ((y == 0xC1) && (ch < 0xC0)) {
+ *ptrd = ch;
+ ptrd++;
+ z++;
+ } else {
+ *ptrd = y;
+ ptrd++;
+ *ptrd = ch;
+ ptrd++;
+ z += 2;
+ }
+ }
+
+ fp = fopen(name, "wb");
+ fwrite(&ph, sizeof(ph), 1, fp);
+ fwrite(dat, 1, z, fp);
+ fputc(12, fp);
+ fwrite(pal, 1, 768, fp);
+ fclose(fp);
+
+ free(dat);
+}
+
+/* TODO: make sure RGB version works */
+void SavePCXRGBToFile(unsigned char *buf, int width, int height, char *name)
+{
+ FILE *fp;
+ pcx_header ph;
+ unsigned char *dat;
+ int x, y, s;
+
+ memset(&ph, 0, sizeof(ph));
+
+ ph.manufacturer = 10;
+ ph.version = 5;
+ ph.encoding = 1;
+ ph.bits_per_pixel = 8;
+ ph.x = ph.y = 0;
+ ph.width = width - 1;
+ ph.height = height - 1;
+ ph.horz_res = ph.virt_res = 0;
+ ph.num_color_planes = 3;
+ ph.byte_per_line = width;
+ ph.palette_type = 1;
+ ph.hscreen_size = width;
+ ph.vscreen_size = height;
+
+ dat = malloc(width * height * 2 * 3);
+ for (y = 0; y < height; y++) {
+ for (s = 0; s < 3; s++) {
+ for (x = 0; x < width; x++) {
+ *(dat + (y*(width*3) + (width*s) + x)*2) = 0xC1;
+ *(dat + (y*(width*3) + (width*s) + x)*2+1) = *(buf + y*(width*3) + x*3 + s);
+ }
+ }
+ }
+
+ fp = fopen(name, "wb");
+ fwrite(&ph, sizeof(ph), 1, fp);
+ fwrite(dat, 1, width * height * 2 * 3, fp);
+ fclose(fp);
+
+ free(dat);
+}
+
+void LoadILBM()
+{
+}
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