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wrlib: add merged code for xpm support in 2 distinct functions

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This patch is adding some merged code in
create_rimage_from_xpm and is_xpm_error fonctions.
This commit is contained in:
David Maciejak
2014-08-26 22:58:57 +08:00
committed by Carlos R. Mafra
parent 556b0d77a1
commit 4005557bb3
1 changed files with 115 additions and 0 deletions
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115
wrlib/load_xpm.c
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@@ -3,6 +3,7 @@
* Raster graphics library
*
* Copyright (c) 1997-2003 Alfredo K. Kojima
* Copyright (c) 2014 Window Maker Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@@ -31,6 +32,120 @@
#include "wraster.h"
#include "imgformat.h"
static RImage *create_rimage_from_xpm(RContext *context, XpmImage xpm)
{
Display *dpy = context->dpy;
Colormap cmap = context->cmap;
RImage *image;
unsigned char *color_table[4];
unsigned char *data;
int i;
int *p;
if (xpm.height < 1 || xpm.width < 1) {
RErrorCode = RERR_BADIMAGEFILE;
return NULL;
}
if (xpm.colorTable == NULL) {
RErrorCode = RERR_BADIMAGEFILE;
return NULL;
}
image = RCreateImage(xpm.width, xpm.height, True);
if (!image)
return NULL;
/* make color table */
for (i = 0; i < 4; i++) {
color_table[i] = malloc(xpm.ncolors * sizeof(unsigned char));
if (!color_table[i]) {
for (i = i - 1; i >= 0; i--) {
if (color_table[i])
free(color_table[i]);
}
RReleaseImage(image);
RErrorCode = RERR_NOMEMORY;
return NULL;
}
}
for (i = 0; i < xpm.ncolors; i++) {
XColor xcolor;
char *color = NULL;
if (xpm.colorTable[i].c_color)
color = xpm.colorTable[i].c_color;
else if (xpm.colorTable[i].g_color)
color = xpm.colorTable[i].g_color;
else if (xpm.colorTable[i].g4_color)
color = xpm.colorTable[i].g4_color;
else if (xpm.colorTable[i].m_color)
color = xpm.colorTable[i].m_color;
else if (xpm.colorTable[i].symbolic)
color = xpm.colorTable[i].symbolic;
if (!color) {
color_table[0][i] = 0xbe;
color_table[1][i] = 0xbe;
color_table[2][i] = 0xbe;
color_table[3][i] = 0xff;
continue;
}
if (strncmp(color, "None", 4) == 0) {
color_table[0][i] = 0;
color_table[1][i] = 0;
color_table[2][i] = 0;
color_table[3][i] = 0;
continue;
}
if (XParseColor(dpy, cmap, color, &xcolor)) {
color_table[0][i] = xcolor.red >> 8;
color_table[1][i] = xcolor.green >> 8;
color_table[2][i] = xcolor.blue >> 8;
color_table[3][i] = 0xff;
} else {
color_table[0][i] = 0xbe;
color_table[1][i] = 0xbe;
color_table[2][i] = 0xbe;
color_table[3][i] = 0xff;
}
}
/* convert pixmap to RImage */
p = (int *)xpm.data;
data = image->data;
for (i = 0; i < xpm.width * xpm.height; i++, p++) {
*(data++) = color_table[0][*p];
*(data++) = color_table[1][*p];
*(data++) = color_table[2][*p];
*(data++) = color_table[3][*p];
}
for (i = 0; i < 4; i++)
free(color_table[i]);
return image;
}
static int is_xpm_error(int status)
{
if (status == XpmSuccess)
return 0;
switch (status) {
case XpmOpenFailed:
RErrorCode = RERR_OPEN;
break;
case XpmFileInvalid:
RErrorCode = RERR_BADIMAGEFILE;
break;
case XpmNoMemory:
RErrorCode = RERR_NOMEMORY;
break;
default:
RErrorCode = RERR_BADIMAGEFILE;
break;
}
return 1;
}
RImage *RGetImageFromXPMData(RContext * context, char **xpmData)
{
Display *dpy = context->dpy;