mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-07-15 08:34:40 +00:00
398 lines
8.5 KiB
C
398 lines
8.5 KiB
C
/*
|
|
fbmngplay - fb console MNG player.
|
|
(c) 2001 by Stefan Reinauer, <stepan :at: suse.de>
|
|
|
|
This program is based on mngplay, part of libmng, written and (C) by
|
|
Ralph Giles <giles :at: ashlu.bc.ca>
|
|
|
|
This program my be redistributed under the terms of the
|
|
GNU General Public Licence, version 2, or at your preference,
|
|
any later version.
|
|
*/
|
|
|
|
#include <unistd.h>
|
|
#include <sys/time.h>
|
|
#include <linux/vt.h>
|
|
|
|
#include "fbmngplay.h"
|
|
#include "console.h"
|
|
#include "mng.h"
|
|
|
|
mngstuff *mng;
|
|
unsigned char *bufferstream;
|
|
unsigned long bufferpos = 0, buffersize = 0;
|
|
|
|
inline void mdelay(unsigned long msec)
|
|
{
|
|
usleep(msec * 1000);
|
|
}
|
|
|
|
/* callbacks for the mng decoder */
|
|
|
|
/* memory allocation; data must be zeroed */
|
|
mng_ptr mngalloc(mng_uint32 size)
|
|
{
|
|
return (mng_ptr) calloc(1, size);
|
|
}
|
|
|
|
/* memory deallocation */
|
|
void mngfree(mng_ptr p, mng_uint32 size)
|
|
{
|
|
free(p);
|
|
return;
|
|
}
|
|
|
|
mng_bool mngopenstream(mng_handle mng)
|
|
{
|
|
mngstuff *mymng;
|
|
|
|
/* look up our stream struct */
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
|
|
/* open the file */
|
|
mymng->file = fopen(mymng->filename, "rb");
|
|
if (mymng->file == NULL) {
|
|
fprintf(stderr, "unable to open '%s'\n", mymng->filename);
|
|
run = 0;
|
|
return MNG_FALSE;
|
|
}
|
|
|
|
if (buffered) {
|
|
unsigned long len;
|
|
fseek(mymng->file, 0, SEEK_END);
|
|
len = ftell(mymng->file);
|
|
rewind(mymng->file);
|
|
bufferstream = malloc(len);
|
|
if (!bufferstream) {
|
|
/* Not enough memory for buffers
|
|
* -> we go back to unbuffered mode
|
|
*/
|
|
printf("Reverted to non buffered mode.\n");
|
|
buffered = 0;
|
|
return MNG_TRUE;
|
|
}
|
|
buffersize = len;
|
|
fread(bufferstream, 1, len, mymng->file);
|
|
bufferpos = 0;
|
|
fclose(mymng->file);
|
|
mymng->file = NULL;
|
|
}
|
|
|
|
return MNG_TRUE;
|
|
}
|
|
|
|
mng_bool mngclosestream(mng_handle mng)
|
|
{
|
|
mngstuff *mymng;
|
|
|
|
/* look up our stream struct */
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
|
|
/* close the file */
|
|
if (mymng->file)
|
|
fclose(mymng->file);
|
|
mymng->file = NULL; /* for safety */
|
|
|
|
if (bufferstream) {
|
|
free(bufferstream);
|
|
bufferstream = 0;
|
|
buffersize = 0;
|
|
bufferpos = 0;
|
|
}
|
|
return MNG_TRUE;
|
|
}
|
|
|
|
/* feed data to the decoder */
|
|
mng_bool mngreadstream(mng_handle mng, mng_ptr buffer,
|
|
mng_uint32 size, mng_uint32 * bytesread)
|
|
{
|
|
mngstuff *mymng;
|
|
|
|
/* look up our stream struct */
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
if (!buffered) {
|
|
/* read the requested amount of data from the file */
|
|
*bytesread = fread(buffer, 1, size, mymng->file);
|
|
} else {
|
|
*bytesread = (buffersize - bufferpos) <
|
|
size ? (buffersize - bufferpos) : size;
|
|
memcpy(buffer, bufferstream + bufferpos, *bytesread);
|
|
bufferpos += (*bytesread);
|
|
}
|
|
return MNG_TRUE;
|
|
}
|
|
|
|
/* the header's been read. set up the display stuff */
|
|
mng_bool mngprocessheader(mng_handle mng,
|
|
mng_uint32 width, mng_uint32 height)
|
|
{
|
|
mngstuff *mymng;
|
|
unsigned char *copybuffer, *background;
|
|
unsigned char *src;
|
|
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
mymng->width = width;
|
|
mymng->height = height;
|
|
|
|
if (dynpos) {
|
|
mymng->fbx = (mymng->fbwidth)-width-15;
|
|
switch (mymng->fbheight) {
|
|
case 768:
|
|
mymng->fby = 15;
|
|
break;
|
|
case 1024:
|
|
mymng->fby = 30;
|
|
break;
|
|
default:
|
|
mymng->fby = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
copybuffer = (unsigned char *) malloc(width * height * 4);
|
|
if (copybuffer == NULL) {
|
|
fprintf(stderr, "could not allocate copy buffer.\n");
|
|
exit(0);
|
|
}
|
|
mymng->copybuffer = copybuffer;
|
|
|
|
if (!mymng->background) {
|
|
background =
|
|
(unsigned char *) malloc(width * height *
|
|
(mymng->fbbpp >> 3));
|
|
if (background == NULL) {
|
|
fprintf(stderr,
|
|
"could not allocate background buffer.\n");
|
|
exit(0);
|
|
}
|
|
mymng->background = background;
|
|
|
|
src = mymng->display + (mymng->fbwidth * mymng->fby +
|
|
mymng->fbx) * (mymng->fbbpp >> 3);
|
|
|
|
while (height--) {
|
|
memcpy(background, src,
|
|
width * (mymng->fbbpp >> 3));
|
|
background += width * (mymng->fbbpp >> 3);
|
|
src += mymng->fbwidth * (mymng->fbbpp >> 3);
|
|
}
|
|
}
|
|
/* tell the mng decoder about our bit-depth choice */
|
|
/* FIXME: this works on intel. is it correct in general? */
|
|
mng_set_canvasstyle(mng, MNG_CANVAS_BGRA8);
|
|
|
|
return MNG_TRUE;
|
|
}
|
|
|
|
/* return a row pointer for the decoder to fill */
|
|
mng_ptr mnggetcanvasline(mng_handle mng, mng_uint32 line)
|
|
{
|
|
mngstuff *mymng;
|
|
mng_ptr row;
|
|
|
|
/* dereference our structure */
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
|
|
/* we assume any necessary locking has happened
|
|
outside, in the frame level code */
|
|
row = mymng->copybuffer + mymng->width * 4 * line;
|
|
|
|
return (row);
|
|
}
|
|
|
|
/* timer */
|
|
mng_uint32 mnggetticks(mng_handle mng)
|
|
{
|
|
mng_uint32 ticks;
|
|
struct timeval tv;
|
|
struct timezone tz;
|
|
|
|
gettimeofday(&tv, &tz);
|
|
ticks = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
|
|
|
|
return (ticks);
|
|
}
|
|
|
|
static inline void copyline(unsigned char *dest, unsigned char *src,
|
|
unsigned char *background, mngstuff * mymng)
|
|
{
|
|
// BGRA8
|
|
unsigned int i = mymng->width;
|
|
unsigned int fr, fg, fb, br, bg, bb, r, g, b, a;
|
|
unsigned short output, input;
|
|
|
|
while (i--) {
|
|
fb = *src++;
|
|
fg = *src++;
|
|
fr = *src++;
|
|
|
|
a = *src++;
|
|
a = a * mymng->alpha / 100;
|
|
switch (mymng->fbbpp) {
|
|
case 16:
|
|
input = *((unsigned short *) background)++;
|
|
br = (input >> 8) & 0xf8;
|
|
bg = (input >> 3) & 0xfc;
|
|
bb = input << 3 & 0xff;
|
|
break;
|
|
case 24:
|
|
bb = *background++;
|
|
bg = *background++;
|
|
br = *background++;
|
|
break;
|
|
case 32:
|
|
bb = *background++;
|
|
bg = *background++;
|
|
br = *background++;
|
|
background++;
|
|
break;
|
|
default:
|
|
br = 0;
|
|
bg = 0;
|
|
bb = 0;
|
|
printf("depth not supported.\n");
|
|
run = 0;
|
|
break;
|
|
}
|
|
|
|
r = ((fr * a) + (br * (0x100 - a))) >> 8;
|
|
g = ((fg * a) + (bg * (0x100 - a))) >> 8;
|
|
b = ((fb * a) + (bb * (0x100 - a))) >> 8;
|
|
|
|
switch (mymng->fbbpp) {
|
|
case 16:
|
|
// dumb 24->16 bit conversion.
|
|
r >>= 3;
|
|
g >>= 2;
|
|
b >>= 3;
|
|
|
|
output = (r << 11) | (g << 5) | b;
|
|
*((unsigned short *) dest)++ = output;
|
|
break;
|
|
case 24:
|
|
*dest++ = b;
|
|
*dest++ = g;
|
|
*dest++ = r;
|
|
break;
|
|
case 32:
|
|
*dest++ = b;
|
|
*dest++ = g;
|
|
*dest++ = r;
|
|
dest++;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
mng_bool mngrefresh(mng_handle mng, mng_uint32 x, mng_uint32 y,
|
|
mng_uint32 w, mng_uint32 h)
|
|
{
|
|
mngstuff *mymng;
|
|
unsigned char *dest, *src, *background;
|
|
|
|
if (sconly && current_console()!=start_console)
|
|
return MNG_TRUE;
|
|
|
|
/* dereference our structure */
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
|
|
dest = mymng->display + ((mymng->fby * mymng->fbwidth + mymng->fbx)
|
|
* (mymng->fbbpp >> 3));
|
|
src = mymng->copybuffer;
|
|
background = mymng->background;
|
|
/* refresh the screen with the new frame */
|
|
while (h-- > 0) {
|
|
copyline(dest, src, background, mymng);
|
|
dest += mymng->fbwidth * (mymng->fbbpp >> 3);
|
|
background += mymng->width * (mymng->fbbpp >> 3);
|
|
src += 4 * mymng->width; // 4 bytes per pixel due to RGBA
|
|
}
|
|
|
|
// remove traces
|
|
memset(mymng->copybuffer, 0, 4 * mymng->width * mymng->height);
|
|
|
|
return MNG_TRUE;
|
|
}
|
|
|
|
/* interframe delay callback */
|
|
mng_bool mngsettimer(mng_handle mng, mng_uint32 msecs)
|
|
{
|
|
mngstuff *mymng;
|
|
|
|
/* look up our stream struct */
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
|
|
/* set the timer for when the decoder wants to be woken */
|
|
mymng->delay = msecs;
|
|
|
|
return MNG_TRUE;
|
|
}
|
|
|
|
mng_bool mngerror(mng_handle mng, mng_int32 code, mng_int8 severity,
|
|
mng_chunkid chunktype, mng_uint32 chunkseq,
|
|
mng_int32 extra1, mng_int32 extra2, mng_pchar text)
|
|
{
|
|
mngstuff *mymng;
|
|
char chunk[5];
|
|
|
|
/* dereference our data so we can get the filename */
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
/* pull out the chuck type as a string */
|
|
// FIXME: does this assume unsigned char?
|
|
chunk[0] = (char) ((chunktype >> 24) & 0xFF);
|
|
chunk[1] = (char) ((chunktype >> 16) & 0xFF);
|
|
chunk[2] = (char) ((chunktype >> 8) & 0xFF);
|
|
chunk[3] = (char) ((chunktype) & 0xFF);
|
|
chunk[4] = '\0';
|
|
|
|
/* output the error */
|
|
fprintf(stderr, "error playing '%s' chunk %s (%d):\n",
|
|
mymng->filename, chunk, chunkseq);
|
|
fprintf(stderr, "%s\n", text);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mngquit(mng_handle mng)
|
|
{
|
|
mngstuff *mymng;
|
|
|
|
/* dereference our data so we can free it */
|
|
mymng = (mngstuff *) mng_get_userdata(mng);
|
|
|
|
/* cleanup. this will call mymngclosestream */
|
|
mng_cleanup(&mng);
|
|
|
|
/* free our data */
|
|
free(mymng);
|
|
/* quit */
|
|
exit(0);
|
|
}
|
|
|
|
void cleanup(void)
|
|
{
|
|
mngquit(mng->mng);
|
|
exit(0);
|
|
}
|
|
|
|
void restore_area(void)
|
|
{
|
|
int height, width;
|
|
unsigned char *dest, *background;
|
|
|
|
if (sconly && current_console()!=start_console)
|
|
return;
|
|
|
|
background = mng->background;
|
|
height = mng->height;
|
|
width = mng->width;
|
|
dest = mng->display + (mng->fbwidth * mng->fby +
|
|
mng->fbx) * (mng->fbbpp >> 3);
|
|
while (height--) {
|
|
memcpy(dest, background, width * (mng->fbbpp >> 3));
|
|
background += width * (mng->fbbpp >> 3);
|
|
dest += mng->fbwidth * (mng->fbbpp >> 3);
|
|
}
|
|
}
|