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-rw-r--r--fbmngplay/mng.c422
1 files changed, 0 insertions, 422 deletions
diff --git a/fbmngplay/mng.c b/fbmngplay/mng.c
deleted file mode 100644
index bee9f46..0000000
--- a/fbmngplay/mng.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/*
- * fbmngplay - fb console MNG player.
- * (c) 2001-2002 by Stefan Reinauer, <stepan@suse.de>
- *
- * This program is based on mngplay, part of libmng, written and (C) by
- * Ralph Giles <giles@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 "fbmngplay.h"
-#include "console.h"
-#include "mng.h"
-
-mngstuff *mng;
-unsigned char *bufferstream;
-unsigned long bufferpos = 0, buffersize = 0;
-
-/*
- * callbacks for the mng decoder
- */
-
-/* memory allocation; data must be zeroed */
-mng_ptr mngalloc(mng_size_t size)
-{
- return (mng_ptr) calloc(1, size);
-}
-
-/* memory deallocation */
-void mngfree(mng_ptr p, mng_size_t 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;
-}
-
-mng_bool mnggetbackgroundbuffer(mng_handle mng)
-{
- unsigned char *background, *src;
- mngstuff *mymng=mng_get_userdata(mng);
- mng_uint32 width=mymng->width, height=mymng->height;
- int bytes=(mymng->fbbpp >> 3);
-
- if (mymng->background)
- return MNG_TRUE;
-
- /* If we're not on the right terminal, don't
- * initialize background yet.
- */
- if (sconly && current_console()!=start_console)
- return MNG_FALSE;
-
- background = (unsigned char *) malloc(width * height * bytes);
- 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) * bytes;
-
- while (height--) {
- memcpy(background, src, width * bytes);
- background += width * bytes;
- src += mymng->fbrow;
- }
-
- 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;
-
- mymng = (mngstuff *) mng_get_userdata(mng);
- mymng->width = width;
- mymng->height = height;
-
- copybuffer = (unsigned char *) malloc(width * height * 4);
- if (copybuffer == NULL) {
- fprintf(stderr, "could not allocate copy buffer.\n");
- exit(0);
- }
- mymng->copybuffer = copybuffer;
-
- /* Try to get background buffer */
- mnggetbackgroundbuffer(mng);
-
- /* 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 = *background++ << 8 + *background++;
-
- br = (input >> mng->fbredo) << (8-mng->fbredl);
- bg = (input >> mng->fbgreeno) << (8-mng->fbgreenl);
- bb = (input >> mng->fbblueo) << (8-mng->fbbluel);
- br &= 0xf8;
- bg &= 0xfc;
- bb &= 0xff;
-#if 0
- br = (input >> 8) & 0xf8;
- bg = (input >> 3) & 0xfc;
- bb = input << 3 & 0xff;
-#endif
- 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 >>= (8-mng->fbredl);
- g >>= (8-mng->fbgreenl);
- b >>= (8-mng->fbbluel);
-
- output = (r << mng->fbredo) | (g << mng->fbgreeno) | (b << mng->fbblueo);
-
- *dest++ = output;
- *dest++ = output >> 8;
- 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=mng_get_userdata(mng);
- unsigned char *background;
- unsigned char *dest, *src;
- int bytes=(mymng->fbbpp >> 3);
-
- if (sconly && current_console()!=start_console)
- return MNG_TRUE;
-
- /* When we read the header, we might still
- * have been on a different console
- */
-
- if (!(mymng->background))
- mnggetbackgroundbuffer(mng);
-
- background = mymng->background;
-
- dest = mymng->display+(mymng->fby*mymng->fbwidth + mymng->fbx)*bytes;
- src = mymng->copybuffer;
-
- /* refresh the screen with the new frame */
- while (h-- > 0) {
- copyline(dest, src, background, mymng);
-
- dest += mymng->fbrow;
- background += mymng->width * bytes;
- /* 4 bytes per pixel due to RGBA */
- src += 4 * mymng->width;
- }
-
- /* remove traces in alpha transparent pictures. */
- 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);
-
- 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;
-
- /* when we didn't manage to get a background until
- * now, we don't have anything to restore anyways.
- */
-
- if (!(mng->background))
- 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->fbrow;
- }
-}
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