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ooptimized code for 8bpp/PseudoColor

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This commit is contained in:
kojima
2000-01-19 17:47:35 +00:00
parent ec5f3a294e
commit 0780ab82fe
6 changed files with 331 additions and 144 deletions
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29
wrlib/context.c
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@@ -67,8 +67,7 @@ static RContextAttributes DEFAULT_CONTEXT_ATTRIBS = {
* allocate colors according to colors_per_channel
*
* best/default:
* if there's a std colormap defined
then use it
* if there's a std colormap defined then use it
*
* else
* create a std colormap and set it
@@ -113,6 +112,17 @@ allocateStandardPseudoColor(RContext *ctx, XStandardColormap *stdcmap)
return False;
}
ctx->pixels = malloc(sizeof(unsigned long)*ctx->ncolors);
if (!ctx->pixels) {
free(ctx->colors);
ctx->colors = NULL;
RErrorCode = RERR_NOMEMORY;
return False;
}
#define calc(max,mult) (((i / stdcmap->mult) % \
(stdcmap->max + 1)) * 65535) / stdcmap->max
@@ -122,6 +132,8 @@ allocateStandardPseudoColor(RContext *ctx, XStandardColormap *stdcmap)
ctx->colors[i].red = calc(red_max, red_mult);
ctx->colors[i].green = calc(green_max, green_mult);
ctx->colors[i].blue = calc(blue_max, blue_mult);
ctx->pixels[i] = ctx->colors[i].pixel;
}
#undef calc
@@ -177,6 +189,14 @@ allocatePseudoColor(RContext *ctx)
RErrorCode = RERR_NOMEMORY;
return False;
}
ctx->pixels = malloc(sizeof(unsigned long)*ncolors);
if (!ctx->pixels) {
free(colors);
RErrorCode = RERR_NOMEMORY;
return False;
}
i=0;
if ((ctx->attribs->flags & RC_GammaCorrection) && ctx->attribs->rgamma > 0
@@ -276,6 +296,11 @@ allocatePseudoColor(RContext *ctx)
ctx->colors = colors;
ctx->ncolors = ncolors;
/* fill the pixels shortcut array */
for (i = 0; i < ncolors; i++) {
ctx->pixels[i] = ctx->colors[i].pixel;
}
return True;
}