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cnc-ddraw/screenshot.c

90 lines
2.4 KiB
C

/*
* Copyright (c) 2010 Toni Spets <toni.spets@iki.fi>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_LIBPNG
#include <windows.h>
#include <stdio.h>
#include <ctype.h>
#include "ddraw.h"
#include "palette.h"
#include "surface.h"
#include <png.h>
BOOL screenshot(struct IDirectDrawSurfaceImpl *src)
{
int i;
FILE *fh;
png_structp png_ptr;
png_infop info_ptr;
png_bytep *row_pointers;
png_color palette[256];
char filename[64];
time_t t = time(NULL);
strftime(filename, 64, "screenshot-%Y-%m-%d-%H_%M_%S.png", localtime(&t));
if(!src || !src->palette)
{
return FALSE;
}
if( !(fh = fopen(filename, "wb")) )
{
return FALSE;
}
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if(!png_ptr)
{
return FALSE;
}
info_ptr = png_create_info_struct(png_ptr);
for(i=0;i<256;i++) {
palette[i].red = src->palette->data_bgr[i];
palette[i].green = src->palette->data_bgr[i] >> 8;
palette[i].blue = src->palette->data_bgr[i] >> 16;
}
setjmp(png_jmpbuf(png_ptr));
png_init_io(png_ptr, fh);
png_set_IHDR(png_ptr, info_ptr, src->width, src->height, 8, PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_set_PLTE(png_ptr, info_ptr, (png_colorp)&palette, 256);
row_pointers = (png_bytep *)png_malloc(png_ptr, sizeof(png_bytep) * src->height);
for(i=0;i<src->height;i++) {
row_pointers[i] = src->surface + (src->width * i);
}
png_set_rows(png_ptr, info_ptr, row_pointers);
png_write_png(png_ptr, info_ptr, PNG_TRANSFORM_IDENTITY, NULL);
fclose(fh);
return TRUE;
}
#endif