mirror of
https://github.com/game-stop/veejay.git
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230 lines
8.0 KiB
C
230 lines
8.0 KiB
C
#include "goom_config.h"
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#include "gfontrle.h"
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#include "gfontlib.h"
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#include <string.h>
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#include <stdlib.h>
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static Pixel ***font_chars;
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static int *font_width;
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static int *font_height;
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static Pixel ***small_font_chars;
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static int *small_font_width;
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static int *small_font_height;
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void gfont_load (void) {
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unsigned char *gfont;
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unsigned int i = 0, j = 0;
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unsigned int nba = 0;
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unsigned int current = 32;
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int *font_pos;
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/* decompress le rle */
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gfont = malloc (the_font.width*the_font.height*the_font.bytes_per_pixel);
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while (i<the_font.rle_size) {
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unsigned char c = the_font.rle_pixel [i++];
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if (c == 0) {
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unsigned int nb = the_font.rle_pixel [i++];
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while (nb--)
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gfont[j++] = 0;
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}
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else
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gfont [j++] = c;
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}
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/* determiner les positions de chaque lettre. */
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font_height = calloc (256,sizeof(int));
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small_font_height = calloc (256,sizeof(int));
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font_width = calloc (256,sizeof(int));
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small_font_width = calloc (256,sizeof(int));
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font_chars = calloc (256,sizeof(int**));
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small_font_chars = calloc (256,sizeof(int**));
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font_pos = calloc (256,sizeof(int));
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for (i=0;i<the_font.width;i++) {
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unsigned char a = gfont [i*4 + 3];
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if (a)
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nba ++;
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else
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nba = 0;
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if (nba == 2) {
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font_width [current] = i - font_pos [current];
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small_font_width [current] = font_width [current]/2;
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font_pos [++current] = i;
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font_height [current] = the_font.height - 2;
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small_font_height [current] = font_height [current]/2;
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}
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}
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font_pos [current] = 0;
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font_height [current] = 0;
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small_font_height [current] = 0;
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/* charger les lettres et convertir au format de la machine */
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for (i=33;i<current;i++) {
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int x; int y;
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font_chars [i] = malloc (font_height[i]*sizeof(int *));
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small_font_chars [i] = malloc (font_height[i]*sizeof(int *)/2);
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for (y = 0; y < font_height[i]; y++) {
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font_chars [i][y] = malloc (font_width[i]*sizeof(int));
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for (x = 0; x < font_width[i]; x++) {
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unsigned int r,g,b,a;
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r = gfont[(y+2)*(the_font.width*4)+(x*4+font_pos[i]*4)];
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g = gfont[(y+2)*(the_font.width*4)+(x*4+font_pos[i]*4+1)];
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b = gfont[(y+2)*(the_font.width*4)+(x*4+font_pos[i]*4+2)];
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a = gfont[(y+2)*(the_font.width*4)+(x*4+font_pos[i]*4+3)];
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font_chars [i][y][x].val =
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(r<<(ROUGE*8))|(g<<(VERT*8))|(b<<(BLEU*8))|(a<<(ALPHA*8));
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}
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}
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for (y = 0; y < font_height[i]/2; y++) {
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small_font_chars [i][y] = malloc (font_width[i]*sizeof(int)/2);
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for (x = 0; x < font_width[i]/2; x++) {
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unsigned int r1,g1,b1,a1,r2,g2,b2,a2,r3,g3,b3,a3,r4,g4,b4,a4;
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r1 = gfont[2*(y+1)*(the_font.width*4)+(x*8+font_pos[i]*4)];
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g1 = gfont[2*(y+1)*(the_font.width*4)+(x*8+font_pos[i]*4+1)];
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b1 = gfont[2*(y+1)*(the_font.width*4)+(x*8+font_pos[i]*4+2)];
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a1 = gfont[2*(y+1)*(the_font.width*4)+(x*8+font_pos[i]*4+3)];
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r2 = gfont[(2*y+3)*(the_font.width*4)+(x*8+font_pos[i]*4+4)];
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g2 = gfont[(2*y+3)*(the_font.width*4)+(x*8+font_pos[i]*4+5)];
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b2 = gfont[(2*y+3)*(the_font.width*4)+(x*8+font_pos[i]*4+6)];
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a2 = gfont[(2*y+3)*(the_font.width*4)+(x*8+font_pos[i]*4+7)];
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r3 = gfont[(2*y+3)*(the_font.width*4)+(x*8+font_pos[i]*4)];
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g3 = gfont[(2*y+3)*(the_font.width*4)+(x*8+font_pos[i]*4+1)];
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b3 = gfont[(2*y+3)*(the_font.width*4)+(x*8+font_pos[i]*4+2)];
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a3 = gfont[(2*y+3)*(the_font.width*4)+(x*8+font_pos[i]*4+3)];
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r4 = gfont[2*(y+1)*(the_font.width*4)+(x*8+font_pos[i]*4+4)];
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g4 = gfont[2*(y+1)*(the_font.width*4)+(x*8+font_pos[i]*4+5)];
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b4 = gfont[2*(y+1)*(the_font.width*4)+(x*8+font_pos[i]*4+6)];
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a4 = gfont[2*(y+1)*(the_font.width*4)+(x*8+font_pos[i]*4+7)];
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small_font_chars [i][y][x].val =
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(((r1 + r2 + r3 + r4)>>2)<<(ROUGE*8))|
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(((g1 + g2 + g3 + g4)>>2)<<(VERT*8))|
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(((b1 + b2 + b3 + b4)>>2)<<(BLEU*8))|
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(((a1 + a2 + a3 + a4)>>2)<<(ALPHA*8));
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}
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}
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}
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/* definir les lettres restantes */
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for (i=0;i<256;i++) {
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if (font_chars[i]==0) {
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font_chars[i]=font_chars[42];
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small_font_chars[i]=small_font_chars[42];
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font_width[i]=font_width[42];
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font_pos[i]=font_pos[42];
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font_height[i]=font_height[42];
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small_font_width[i]=small_font_width[42];
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small_font_height[i]=small_font_height[42];
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}
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}
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font_width [32] = (the_font.height / 2) - 1;
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small_font_width [32] = font_width [32]/2;
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font_chars [32] = 0;
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small_font_chars [32] = 0;
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}
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void goom_draw_text (Pixel * buf,int resolx,int resoly,
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int x, int y,
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const char *str, float charspace, int center) {
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float fx = (float) x;
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int fin = 0;
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Pixel ***cur_font_chars;
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int *cur_font_width;
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int *cur_font_height;
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if (resolx>320)
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{
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/* printf("use big\n"); */
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cur_font_chars = font_chars;
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cur_font_width = font_width;
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cur_font_height = font_height;
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}
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else
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{
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/* printf ("use small\n"); */
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cur_font_chars = small_font_chars;
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cur_font_width = small_font_width;
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cur_font_height = small_font_height;
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}
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if (cur_font_chars == NULL)
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return ;
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if (center) {
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unsigned char *tmp = (unsigned char*)str;
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float lg = -charspace;
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while (*tmp != '\0')
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lg += cur_font_width[*(tmp++)] + charspace;
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fx -= lg / 2;
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}
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while (!fin) {
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unsigned char c = *str;
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x = (int) fx;
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if (c == '\0')
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fin = 1;
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else if (cur_font_chars[c]==0) {
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fx += cur_font_width[c] + charspace;
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}
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else {
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int xx, yy;
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int xmin = x;
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int xmax = x + cur_font_width[c];
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int ymin = y - cur_font_height[c];
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int ymax = y;
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yy = ymin;
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if (xmin < 0)
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xmin = 0;
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if (xmin >= resolx - 1)
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return;
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if (xmax >= (int) resolx)
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xmax = resolx - 1;
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if (yy < 0)
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yy = 0;
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if (yy <= (int) resoly - 1) {
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if (ymax >= (int) resoly - 1)
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ymax = resoly - 1;
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for (; yy < ymax; yy++)
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for (xx = xmin; xx < xmax; xx++)
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{
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Pixel color = cur_font_chars[c][yy - ymin][xx - x];
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Pixel transparency;
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transparency.val = color.val & A_CHANNEL;
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if (transparency.val)
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{
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if (transparency.val==A_CHANNEL) buf[yy * resolx + xx] = color;
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else
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{
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Pixel back = buf[yy * resolx + xx];
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unsigned int a1 = color.channels.a;
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unsigned int a2 = 255 - a1;
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buf[yy * resolx + xx].channels.r = (unsigned char)((((unsigned int)color.channels.r * a1) + ((unsigned int)back.channels.r * a2)) >> 8);
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buf[yy * resolx + xx].channels.g = (unsigned char)((((unsigned int)color.channels.g * a1) + ((unsigned int)back.channels.g * a2)) >> 8);
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buf[yy * resolx + xx].channels.b = (unsigned char)((((unsigned int)color.channels.b * a1) + ((unsigned int)back.channels.b * a2)) >> 8);
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}
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}
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}
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}
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fx += cur_font_width[c] + charspace;
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}
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str++;
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}
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}
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