BOOL GUIAPI SetColorfulPalette (HDC hdc)
{
PDC pdc;
GAL_Color pal[256];
pdc = dc_HDC2PDC (hdc);
if (pdc->surface->format->BitsPerPixel == 8) {
GAL_DitherColors (pal, 8);
GAL_SetColors (pdc->surface, pal, 0, 256);
}
return FALSE;
}
int minigl_MakeCurrent(GAL_Surface *surface, minigl_Context *ctx, unsigned short client_width, unsigned short client_height)
{
int mode;
int xsize;
int ysize;
int n_colors = 0;
ZBuffer *zb;
if( ctx->gl_context == NULL )
{
// create the TinyGL context
xsize = client_width;
ysize = client_height;
// we ensure that xsize and ysize are multiples of 2 for the zbuffer.
xsize &= ~3;
ysize &= ~3;
switch( surface->format->BitsPerPixel )
{
case 8:
{
ctx->indexes = (unsigned char *)malloc(ZB_NB_COLORS);
if (ctx->indexes == NULL)
return 0;
for(mode=0;mode<ZB_NB_COLORS;mode++)
ctx->indexes[mode]=mode;
ctx->palette = (unsigned int *)calloc (ZB_NB_COLORS, sizeof(int));
if (ctx->palette == NULL)
{
free(ctx->indexes);
ctx->indexes = NULL;
return 0;
}
ctx->pitch = surface->pitch * 2;
n_colors = ZB_NB_COLORS;
mode = ZB_MODE_INDEX;
ctx->pDitherBuf = (unsigned char *)malloc(xsize * ysize);
}
break;
case 16:
{
ctx->pitch = surface->pitch;
mode = ZB_MODE_5R6G5B;
}
break;
case 24:
{
ctx->pitch = ( surface->pitch * 2 ) / 3;
mode = ZB_MODE_RGB24;
}
break;
case 32:
{
ctx->pitch = surface->pitch / 2;
mode = ZB_MODE_RGBA;
}
break;
default:
return 0;
}
zb = ZB_open( xsize, ysize, mode, n_colors, (unsigned char*)ctx->indexes, (int *)ctx->palette, NULL);
if( zb == NULL ){
// fprintf( stderr, "Error while initializing Z buffer\n" );
if (ctx->indexes != NULL )
{
free(ctx->indexes);
ctx->indexes = NULL;
}
if (ctx->palette != NULL )
{
free(ctx->palette);
ctx->palette = NULL;
}
return 0;
}
if (ctx->palette != NULL)
{
GAL_Color *pal=(GAL_Color *)calloc(ZB_NB_COLORS,sizeof(GAL_Color));
if (pal!=NULL)
{
for (mode=0; mode<ZB_NB_COLORS; mode++)
{
pal[mode].r = (ctx->palette[mode]>>16) & 0xFF;
pal[mode].g = (ctx->palette[mode]>>8) & 0xFF;
pal[mode].b = (ctx->palette[mode]) & 0xFF;
}
GAL_SetColors(surface, pal, 0, ZB_NB_COLORS);
free(pal);
}
}
