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changed indentation to use spaces only

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dan
2004-10-12 21:28:27 +00:00
parent 5912898b06
commit 6830b05716
240 changed files with 35951 additions and 35773 deletions
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169
wrlib/png.c
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@@ -1,19 +1,19 @@
/* png.c - load PNG image from file
*
*
* Raster graphics library
*
*
* Copyright (c) 1997-2003 Alfredo K. Kojima
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
@@ -66,76 +66,76 @@ RLoadPNG(RContext *context, char *file, int index)
int depth, junk, color_type;
png_bytep *png_rows;
unsigned char *ptr;
f = fopen(file, "rb");
if (!f) {
RErrorCode = RERR_OPEN;
return NULL;
RErrorCode = RERR_OPEN;
return NULL;
}
png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL,
(png_error_ptr)NULL, (png_error_ptr)NULL);
png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL,
(png_error_ptr)NULL, (png_error_ptr)NULL);
if (!png) {
RErrorCode = RERR_NOMEMORY;
fclose(f);
return NULL;
RErrorCode = RERR_NOMEMORY;
fclose(f);
return NULL;
}
pinfo = png_create_info_struct(png);
if (!pinfo) {
RErrorCode = RERR_NOMEMORY;
fclose(f);
png_destroy_read_struct(&png, NULL, NULL);
return NULL;
RErrorCode = RERR_NOMEMORY;
fclose(f);
png_destroy_read_struct(&png, NULL, NULL);
return NULL;
}
einfo = png_create_info_struct(png);
if (!einfo) {
RErrorCode = RERR_NOMEMORY;
fclose(f);
png_destroy_read_struct(&png, &pinfo, NULL);
return NULL;
RErrorCode = RERR_NOMEMORY;
fclose(f);
png_destroy_read_struct(&png, &pinfo, NULL);
return NULL;
}
RErrorCode = RERR_INTERNAL;
if (setjmp(png->jmpbuf)) {
fclose(f);
png_destroy_read_struct(&png, &pinfo, &einfo);
if (image)
RReleaseImage(image);
return NULL;
fclose(f);
png_destroy_read_struct(&png, &pinfo, &einfo);
if (image)
RReleaseImage(image);
return NULL;
}
png_init_io(png, f);
png_read_info(png, pinfo);
png_get_IHDR(png, pinfo, &width, &height, &depth, &color_type,
&junk, &junk, &junk);
&junk, &junk, &junk);
/* sanity check */
if (width < 1 || height < 1) {
fclose(f);
png_destroy_read_struct(&png, &pinfo, &einfo);
RErrorCode = RERR_BADIMAGEFILE;
return NULL;
fclose(f);
png_destroy_read_struct(&png, &pinfo, &einfo);
RErrorCode = RERR_BADIMAGEFILE;
return NULL;
}
/* check for an alpha channel */
if (png_get_valid(png, pinfo, PNG_INFO_tRNS))
alpha = True;
alpha = True;
else
alpha = (color_type & PNG_COLOR_MASK_ALPHA);
alpha = (color_type & PNG_COLOR_MASK_ALPHA);
/* allocate RImage */
image = RCreateImage(width, height, alpha);
if (!image) {
fclose(f);
png_destroy_read_struct(&png, &pinfo, &einfo);
return NULL;
fclose(f);
png_destroy_read_struct(&png, &pinfo, &einfo);
return NULL;
}
/* normalize to 8bpp with alpha channel */
if (color_type == PNG_COLOR_TYPE_PALETTE && depth <= 8)
png_set_expand(png);
@@ -151,85 +151,85 @@ RLoadPNG(RContext *context, char *file, int index)
if (color_type == PNG_COLOR_TYPE_GRAY ||
color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
png_set_gray_to_rgb(png);
png_set_gray_to_rgb(png);
/* set gamma correction */
if ((context->attribs->flags & RC_GammaCorrection)
&& context->depth != 8) {
sgamma = (context->attribs->rgamma + context->attribs->ggamma +
context->attribs->bgamma) / 3;
&& context->depth != 8) {
sgamma = (context->attribs->rgamma + context->attribs->ggamma +
context->attribs->bgamma) / 3;
} else if ((tmp = getenv("DISPLAY_GAMMA")) != NULL) {
sgamma = atof(tmp);
if (sgamma==0)
sgamma = 1;
sgamma = atof(tmp);
if (sgamma==0)
sgamma = 1;
} else {
/* blah */
sgamma = 2.2;
/* blah */
sgamma = 2.2;
}
if (png_get_gAMA(png, pinfo, &gamma))
png_set_gamma(png, sgamma, gamma);
png_set_gamma(png, sgamma, gamma);
else
png_set_gamma(png, sgamma, 0.45);
png_set_gamma(png, sgamma, 0.45);
/* do the transforms */
png_read_update_info(png, pinfo);
/* set background color */
if (png_get_bKGD(png, pinfo, &bkcolor)) {
image->background.red = bkcolor->red >> 8;
image->background.green = bkcolor->green >> 8;
image->background.blue = bkcolor->blue >> 8;
image->background.red = bkcolor->red >> 8;
image->background.green = bkcolor->green >> 8;
image->background.blue = bkcolor->blue >> 8;
}
png_rows = alloca(sizeof(char*)*height);
if (!png_rows) {
RErrorCode = RERR_NOMEMORY;
fclose(f);
RReleaseImage(image);
png_destroy_read_struct(&png, &pinfo, &einfo);
RErrorCode = RERR_NOMEMORY;
fclose(f);
RReleaseImage(image);
png_destroy_read_struct(&png, &pinfo, &einfo);
#ifdef C_ALLOCA
alloca(0);
alloca(0);
#endif
return NULL;
return NULL;
}
for (y=0; y<height; y++) {
png_rows[y] = alloca(png_get_rowbytes(png, pinfo));
if (!png_rows[y]) {
RErrorCode = RERR_NOMEMORY;
fclose(f);
RReleaseImage(image);
png_destroy_read_struct(&png, &pinfo, &einfo);
png_rows[y] = alloca(png_get_rowbytes(png, pinfo));
if (!png_rows[y]) {
RErrorCode = RERR_NOMEMORY;
fclose(f);
RReleaseImage(image);
png_destroy_read_struct(&png, &pinfo, &einfo);
#ifdef C_ALLOCA
alloca(0);
alloca(0);
#endif
return NULL;
}
return NULL;
}
}
/* read data */
png_read_image(png, png_rows);
png_read_end(png, einfo);
png_destroy_read_struct(&png, &pinfo, &einfo);
fclose(f);
ptr = image->data;
/* convert to RImage */
if (alpha) {
for (y=0; y<height; y++) {
for (x=0, i=width*4; x<i; x++, ptr++) {
*ptr = *(png_rows[y]+x);
}
}
for (y=0; y<height; y++) {
for (x=0, i=width*4; x<i; x++, ptr++) {
*ptr = *(png_rows[y]+x);
}
}
} else {
for (y=0; y<height; y++) {
for (x=0, i=width*3; x<i; x++, ptr++) {
*ptr = *(png_rows[y]+x);
}
}
for (y=0; y<height; y++) {
for (x=0, i=width*3; x<i; x++, ptr++) {
*ptr = *(png_rows[y]+x);
}
}
}
#ifdef C_ALLOCA
alloca(0);
@@ -238,3 +238,4 @@ RLoadPNG(RContext *context, char *file, int index)
}
#endif /* USE_PNG */