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Location: cpp/openttd-patchpack/source/src/os/macosx/splash.cpp - annotation
r7283:49a2e04751af
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(svn r10622) -Feature: Introduction of the CBID_INDUSTRY_AVAILABLE's handling, in fund industry window.
In order to stay as much consistent with the specs, the fund window will perform (if required) the callback every game-day. TTDPatch performs the same call every second, but after discussions with Csaboka, we agreed that it was not required to be that intensive. So a game-day is plenty enough.
In order to stay as much consistent with the specs, the fund window will perform (if required) the callback every game-day. TTDPatch performs the same call every second, but after discussions with Csaboka, we agreed that it was not required to be that intensive. So a game-day is plenty enough.
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#include "../../stdafx.h"
#include "../../openttd.h"
#include "../../variables.h"
#include "../../macros.h"
#include "../../debug.h"
#include "../../functions.h"
#include "../../gfx.h"
#include "../../fileio.h"
#include "splash.h"
#ifdef WITH_PNG
#include <png.h>
static void PNGAPI png_my_error(png_structp png_ptr, png_const_charp message)
{
DEBUG(misc, 0, "[libpng] error: %s - %s", message, (char *)png_get_error_ptr(png_ptr));
longjmp(png_ptr->jmpbuf, 1);
}
static void PNGAPI png_my_warning(png_structp png_ptr, png_const_charp message)
{
DEBUG(misc, 1, "[libpng] warning: %s - %s", message, (char *)png_get_error_ptr(png_ptr));
}
void DisplaySplashImage()
{
png_byte header[8];
FILE *f;
png_structp png_ptr;
png_infop info_ptr, end_info;
uint width, height, bit_depth, color_type;
png_colorp palette;
int num_palette;
png_bytep *row_pointers;
uint8 *src, *dst;
uint y;
uint xoff, yoff;
int i;
f = FioFOpenFile(SPLASH_IMAGE_FILE);
if (f == NULL) return;
fread(header, 1, 8, f);
if (png_sig_cmp(header, 0, 8) != 0) {
fclose(f);
return;
}
png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, (png_voidp) NULL, png_my_error, png_my_warning);
if (png_ptr == NULL) {
fclose(f);
return;
}
info_ptr = png_create_info_struct(png_ptr);
if (info_ptr == NULL) {
png_destroy_read_struct(&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
fclose(f);
return;
}
end_info = png_create_info_struct(png_ptr);
if (end_info == NULL) {
png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
fclose(f);
return;
}
if (setjmp(png_jmpbuf(png_ptr))) {
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
fclose(f);
return;
}
png_init_io(png_ptr, f);
png_set_sig_bytes(png_ptr, 8);
png_read_png(png_ptr, info_ptr, PNG_TRANSFORM_IDENTITY, NULL);
width = png_get_image_width(png_ptr, info_ptr);
height = png_get_image_height(png_ptr, info_ptr);
bit_depth = png_get_bit_depth(png_ptr, info_ptr);
color_type = png_get_color_type(png_ptr, info_ptr);
if (color_type != PNG_COLOR_TYPE_PALETTE || bit_depth != 8) {
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
fclose(f);
return;
}
if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_PLTE)) {
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
fclose(f);
return;
}
png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette);
row_pointers = png_get_rows(png_ptr, info_ptr);
memset(_screen.dst_ptr, 0xff, _screen.pitch * _screen.height);
if (width > (uint) _screen.width) width = _screen.width;
if (height > (uint) _screen.height) height = _screen.height;
xoff = (_screen.width - width) / 2;
yoff = (_screen.height - height) / 2;
for (y = 0; y < height; y++) {
src = row_pointers[y];
dst = ((uint8 *) _screen.dst_ptr) + (yoff + y) * _screen.pitch + xoff;
memcpy(dst, src, width);
}
for (i = 0; i < num_palette; i++) {
_cur_palette[i].r = palette[i].red;
_cur_palette[i].g = palette[i].green;
_cur_palette[i].b = palette[i].blue;
}
_cur_palette[0xff].r = 0;
_cur_palette[0xff].g = 0;
_cur_palette[0xff].b = 0;
_pal_first_dirty = 0;
_pal_count_dirty = 255;
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
fclose(f);
return;
}
#else /* WITH_PNG */
void DisplaySplashImage() {}
#endif /* WITH_PNG */
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