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Xnest: replace XQueryColors() by xcb_query_colors() 

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult 2024-08-05 19:12:57 +02:00
parent 2880d18bda
commit c9c52faa16
1 changed files with 58 additions and 49 deletions
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107
hw/xnest/Color.c
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@ -45,17 +45,49 @@ static DevPrivateKeyRec cmapScrPrivateKeyRec;
#define GetInstalledColormap(s) ((ColormapPtr) dixLookupPrivate(&(s)->devPrivates, cmapScrPrivateKey))
#define SetInstalledColormap(s,c) (dixSetPrivate(&(s)->devPrivates, cmapScrPrivateKey, c))
static Bool load_colormap(ColormapPtr pCmap, int ncolors, uint32_t *colors)
{
xcb_generic_error_t *err = NULL;
xcb_query_colors_reply_t *reply = xcb_query_colors_reply(
xnestUpstreamInfo.conn,
xcb_query_colors(
xnestUpstreamInfo.conn,
xnestColormap(pCmap),
ncolors,
colors),
&err);
if (!reply) {
LogMessage(X_WARNING, "load_colormap(): missing reply for QueryColors request\n");
free(colors);
return FALSE;
}
if (xcb_query_colors_colors_length(reply) != ncolors) {
LogMessage(X_WARNING, "load_colormap(): received wrong number of entries: %d - expected %d\n",
xcb_query_colors_colors_length(reply), ncolors);
free(reply);
free(colors);
return FALSE;
}
xcb_rgb_t *rgb = xcb_query_colors_colors(reply);
for (int i = 0; i < ncolors; i++) {
pCmap->red[i].co.local.red = rgb[i].red;
pCmap->green[i].co.local.green = rgb[i].green;
pCmap->blue[i].co.local.blue = rgb[i].blue;
}
free(colors);
free(reply);
return TRUE;
}
Bool
xnestCreateColormap(ColormapPtr pCmap)
{
VisualPtr pVisual;
XColor *colors;
int i, ncolors;
Pixel red, green, blue;
Pixel redInc, greenInc, blueInc;
pVisual = pCmap->pVisual;
ncolors = pVisual->ColormapEntries;
VisualPtr pVisual = pCmap->pVisual;
int ncolors = pVisual->ColormapEntries;
uint32_t const cmap = xcb_generate_id(xnestUpstreamInfo.conn);
xnestColormapPriv(pCmap)->colormap = cmap;
@ -68,42 +100,24 @@ xnestCreateColormap(ColormapPtr pCmap)
switch (pVisual->class) {
case StaticGray: /* read only */
if (!(colors = calloc(ncolors, sizeof(XColor))))
return FALSE;
for (i = 0; i < ncolors; i++)
colors[i].pixel = i;
XQueryColors(xnestDisplay, xnestColormap(pCmap), colors, ncolors);
for (i = 0; i < ncolors; i++) {
pCmap->red[i].co.local.red = colors[i].red;
pCmap->red[i].co.local.green = colors[i].red;
pCmap->red[i].co.local.blue = colors[i].red;
}
free(colors);
break;
case StaticColor: /* read only */
if (!(colors = calloc(ncolors, sizeof(XColor))))
return FALSE;
for (i = 0; i < ncolors; i++)
colors[i].pixel = i;
XQueryColors(xnestDisplay, xnestColormap(pCmap), colors, ncolors);
for (i = 0; i < ncolors; i++) {
pCmap->red[i].co.local.red = colors[i].red;
pCmap->red[i].co.local.green = colors[i].green;
pCmap->red[i].co.local.blue = colors[i].blue;
}
free(colors);
break;
{
uint32_t *colors = malloc(ncolors * sizeof(uint32_t));
for (int i = 0; i < ncolors; i++)
colors[i] = i;
return load_colormap(pCmap, ncolors, colors);
}
break;
case TrueColor: /* read only */
if (!(colors = calloc(ncolors, sizeof(XColor))))
return FALSE;
red = green = blue = 0L;
redInc = lowbit(pVisual->redMask);
greenInc = lowbit(pVisual->greenMask);
blueInc = lowbit(pVisual->blueMask);
for (i = 0; i < ncolors; i++) {
colors[i].pixel = red | green | blue;
{
uint32_t *colors = malloc(ncolors * sizeof(uint32_t));
Pixel red = 0, redInc = lowbit(pVisual->redMask);
Pixel green = 0, greenInc = lowbit(pVisual->greenMask);
Pixel blue = 0, blueInc = lowbit(pVisual->blueMask);
for (int i = 0; i < ncolors; i++) {
colors[i] = red | green | blue;
red += redInc;
if (red > pVisual->redMask)
red = 0L;
@ -114,14 +128,9 @@ xnestCreateColormap(ColormapPtr pCmap)
if (blue > pVisual->blueMask)
blue = 0L;
}
XQueryColors(xnestDisplay, xnestColormap(pCmap), colors, ncolors);
for (i = 0; i < ncolors; i++) {
pCmap->red[i].co.local.red = colors[i].red;
pCmap->green[i].co.local.green = colors[i].green;
pCmap->blue[i].co.local.blue = colors[i].blue;
}
free(colors);
break;
return load_colormap(pCmap, ncolors, colors);
}
break;
case GrayScale: /* read and write */
break;