mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

Imported from libpng-1.0.5h.tar

Browse Source
This commit is contained in:
Glenn Randers-Pehrson
1999-12-10 09:43:02 -06:00
parent 074af5e9ca
commit 166c5a397e
62 changed files with 3740 additions and 1045 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
contrib/gregbook/rpng-win.c
View File

@@ -53,7 +53,7 @@
/* #define DEBUG : this enables the Trace() macros */
#include "readpng.h" /* typedefs, common macros, readpng prototypes */
#include "readpng.h" /* typedefs, common macros, readpng prototypes */
/* could just include png.h, but this macro is the only thing we need
@@ -61,10 +61,10 @@
* only happen with alpha (which could easily be avoided with
* "ush acopy = (alpha);") */
#define alpha_composite(composite, fg, alpha, bg) { \
ush temp = ((ush)(fg)*(ush)(alpha) + \
(ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128); \
(composite) = (uch)((temp + (temp >> 8)) >> 8); \
#define alpha_composite(composite, fg, alpha, bg) { \
ush temp = ((ush)(fg)*(ush)(alpha) + \
(ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128); \
(composite) = (uch)((temp + (temp >> 8)) >> 8); \
}
@@ -78,7 +78,7 @@ LRESULT CALLBACK rpng_win_wndproc(HWND, UINT, WPARAM, LPARAM);
static char titlebar[1024], *window_name = titlebar;
static char *progname = PROGNAME;
static char *appname = LONGNAME;
static char *icon_name = PROGNAME; /* GRR: not (yet) used */
static char *icon_name = PROGNAME; /* GRR: not (yet) used */
static char *filename;
static FILE *infile;
@@ -104,15 +104,15 @@ static HWND global_hwnd;
int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
{
char *args[1024]; /* arbitrary limit, but should suffice */
char *args[1024]; /* arbitrary limit, but should suffice */
char *p, *q, **argv = args;
int argc = 0;
int rc, alen, flen;
int error = 0;
int have_bg = FALSE;
double LUT_exponent; /* just the lookup table */
double CRT_exponent = 2.2; /* just the monitor */
double default_display_exponent; /* whole display system */
double LUT_exponent; /* just the lookup table */
double CRT_exponent = 2.2; /* just the monitor */
double default_display_exponent; /* whole display system */
MSG msg;
@@ -150,7 +150,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
LUT_exponent = 1.8 / 2.61;
/*
if (some_mac_function_that_returns_gamma(&mac_gamma))
LUT_exponent = mac_gamma / 2.61;
LUT_exponent = mac_gamma / 2.61;
*/
#else
LUT_exponent = 1.0; /* assume no LUT: most PCs */
@@ -371,7 +371,7 @@ static int rpng_win_create_window(HINSTANCE hInst, int showmode)
if (!(dib = (uch *)malloc(sizeof(BITMAPINFOHEADER) +
wimage_rowbytes*image_height)))
{
return 4; /* fail */
return 4; /* fail */
}
/*---------------------------------------------------------------------------
@@ -477,7 +477,7 @@ static int rpng_win_display_image()
g = *src++;
b = *src++;
*dest++ = b;
*dest++ = g; /* note reverse order */
*dest++ = g; /* note reverse order */
*dest++ = r;
}
} else /* if (image_channels == 4) */ {
@@ -582,15 +582,15 @@ LRESULT CALLBACK rpng_win_wndproc(HWND hwnd, UINT iMsg, WPARAM wP, LPARAM lP)
/* wait for the user to tell us when to quit */
case WM_CHAR:
switch (wP) { /* only need one, so ignore repeat count */
switch (wP) { /* only need one, so ignore repeat count */
case 'q':
case 'Q':
case 0x1B: /* Esc key */
case 0x1B: /* Esc key */
PostQuitMessage(0);
}
return 0;
case WM_LBUTTONDOWN: /* another way of quitting */
case WM_LBUTTONDOWN: /* another way of quitting */
case WM_DESTROY:
PostQuitMessage(0);
return 0;