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svn-id: r38666
This commit is contained in:
Paweł Kołodziejski 2009-02-21 07:42:23 +00:00
parent 3874465bdb
commit 30848dec14
1 changed files with 9 additions and 13 deletions
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22
engines/sci/gfx/antialias.cpp
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@ -28,17 +28,16 @@
#include "sci/include/gfx_system.h"
#include "sci/include/gfx_tools.h"
static void
antialiase_simple(gfx_pixmap_t *pixmap, int mask[], int shift_const, gfx_mode_t *mode) {
static void antialiase_simple(gfx_pixmap_t *pixmap, int mask[], int shift_const, gfx_mode_t *mode) {
int x, y, c;
int bytespp = mode->bytespp;
int line_size = bytespp * pixmap->xl;
char *lastline[2];
char *lastline_p = NULL;
char *data_p = (char *) pixmap->data;
char *data_p = (char *)pixmap->data;
lastline[0] = (char*)sci_malloc(line_size);
lastline[1] = (char*)sci_malloc(line_size);
lastline[0] = (char *)sci_malloc(line_size);
lastline[1] = (char *)sci_malloc(line_size);
for (y = 0; y < pixmap->yl; y++) {
int visimode = (y > 0 && y + 1 < pixmap->yl) ? 1 : 0;
@ -100,11 +99,11 @@ antialiase_simple(gfx_pixmap_t *pixmap, int mask[], int shift_const, gfx_mode_t
switch (visimode) {
case 0:
accum /= 9; /* Only happens twelve times */
accum /= 9; // Only happens twelve times
break;
case 1:
accum = (accum >> 6) + (accum >> 4); /* 15/16 intensity */
accum = (accum >> 6) + (accum >> 4); // 15/16 intensity
break;
case 2:
@ -112,7 +111,7 @@ antialiase_simple(gfx_pixmap_t *pixmap, int mask[], int shift_const, gfx_mode_t
break;
default:
accum = (c == 0) ? 0xffffffff : 0; /* Error: mark as red */
accum = (c == 0) ? 0xffffffff : 0; // Error: mark as red
}
result |= (accum & mask[c]);
@ -130,14 +129,13 @@ antialiase_simple(gfx_pixmap_t *pixmap, int mask[], int shift_const, gfx_mode_t
free(lastline[1]);
}
void
gfxr_antialiase(gfx_pixmap_t *pixmap, gfx_mode_t *mode, gfxr_antialiasing_t type) {
void gfxr_antialiase(gfx_pixmap_t *pixmap, gfx_mode_t *mode, gfxr_antialiasing_t type) {
int masks[3];
int shift_const = 0;
#ifdef WORDS_BIGENDIAN
shift_const = (sizeof(unsigned long) - mode->bytespp) << 3;
#endif /* WORDS_BIGENDIAN */
#endif
masks[0] = mode->red_mask;
masks[1] = mode->green_mask;
@ -158,6 +156,4 @@ gfxr_antialiase(gfx_pixmap_t *pixmap, gfx_mode_t *mode, gfxr_antialiasing_t type
default:
GFXERROR("Invalid antialiasing mode %d (internal error)\n", type);
}
return;
}