mirror of
https://github.com/joel16/SDL2.git
synced 2025-01-19 01:37:04 +00:00
cf548d0a6b
--HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402629
648 lines
18 KiB
C
648 lines
18 KiB
C
/********************************************************************************
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* *
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* Test of the overlay used for moved pictures, test more closed to real life. *
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* Running trojan moose :) Coded by Mike Gorchak. *
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* *
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********************************************************************************/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "SDL.h"
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#define MOOSEPIC_W 64
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#define MOOSEPIC_H 88
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#define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H)
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#define MOOSEFRAMES_COUNT 10
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SDL_Color MooseColors[84] = {
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{49, 49, 49}
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, {66, 24, 0}
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, {66, 33, 0}
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, {66, 66, 66}
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,
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{66, 115, 49}
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, {74, 33, 0}
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, {74, 41, 16}
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, {82, 33, 8}
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,
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{82, 41, 8}
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, {82, 49, 16}
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, {82, 82, 82}
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, {90, 41, 8}
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,
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{90, 41, 16}
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, {90, 57, 24}
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, {99, 49, 16}
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, {99, 66, 24}
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,
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{99, 66, 33}
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, {99, 74, 33}
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, {107, 57, 24}
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, {107, 82, 41}
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,
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{115, 57, 33}
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, {115, 66, 33}
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, {115, 66, 41}
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, {115, 74, 0}
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,
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{115, 90, 49}
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, {115, 115, 115}
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, {123, 82, 0}
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, {123, 99, 57}
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,
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{132, 66, 41}
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, {132, 74, 41}
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, {132, 90, 8}
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, {132, 99, 33}
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,
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{132, 99, 66}
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, {132, 107, 66}
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, {140, 74, 49}
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, {140, 99, 16}
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,
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{140, 107, 74}
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, {140, 115, 74}
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, {148, 107, 24}
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, {148, 115, 82}
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,
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{148, 123, 74}
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, {148, 123, 90}
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, {156, 115, 33}
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, {156, 115, 90}
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,
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{156, 123, 82}
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, {156, 132, 82}
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, {156, 132, 99}
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, {156, 156, 156}
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,
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{165, 123, 49}
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, {165, 123, 90}
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, {165, 132, 82}
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, {165, 132, 90}
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,
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{165, 132, 99}
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, {165, 140, 90}
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, {173, 132, 57}
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, {173, 132, 99}
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,
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{173, 140, 107}
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, {173, 140, 115}
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, {173, 148, 99}
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, {173, 173, 173}
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,
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{181, 140, 74}
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, {181, 148, 115}
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, {181, 148, 123}
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, {181, 156, 107}
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,
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{189, 148, 123}
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, {189, 156, 82}
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, {189, 156, 123}
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, {189, 156, 132}
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,
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{189, 189, 189}
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, {198, 156, 123}
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, {198, 165, 132}
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, {206, 165, 99}
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,
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{206, 165, 132}
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, {206, 173, 140}
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, {206, 206, 206}
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, {214, 173, 115}
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,
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{214, 173, 140}
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, {222, 181, 148}
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, {222, 189, 132}
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, {222, 189, 156}
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,
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{222, 222, 222}
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, {231, 198, 165}
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, {231, 231, 231}
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, {239, 206, 173}
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};
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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static void
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quit(int rc)
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{
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SDL_Quit();
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exit(rc);
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}
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/* All RGB2YUV conversion code and some other parts of code has been taken from testoverlay.c */
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/* NOTE: These RGB conversion functions are not intended for speed,
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only as examples.
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*/
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void
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RGBtoYUV(Uint8 * rgb, int *yuv, int monochrome, int luminance)
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{
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if (monochrome) {
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#if 1 /* these are the two formulas that I found on the FourCC site... */
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yuv[0] = 0.299 * rgb[0] + 0.587 * rgb[1] + 0.114 * rgb[2];
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yuv[1] = 128;
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yuv[2] = 128;
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#else
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yuv[0] = (0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16;
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yuv[1] = 128;
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yuv[2] = 128;
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#endif
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} else {
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#if 1 /* these are the two formulas that I found on the FourCC site... */
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yuv[0] = 0.299 * rgb[0] + 0.587 * rgb[1] + 0.114 * rgb[2];
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yuv[1] = (rgb[2] - yuv[0]) * 0.565 + 128;
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yuv[2] = (rgb[0] - yuv[0]) * 0.713 + 128;
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#else
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yuv[0] = (0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16;
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yuv[1] = 128 - (0.148 * rgb[0]) - (0.291 * rgb[1]) + (0.439 * rgb[2]);
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yuv[2] = 128 + (0.439 * rgb[0]) - (0.368 * rgb[1]) - (0.071 * rgb[2]);
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#endif
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}
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if (luminance != 100) {
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yuv[0] = yuv[0] * luminance / 100;
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if (yuv[0] > 255)
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yuv[0] = 255;
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}
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}
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void
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ConvertRGBtoYV12(SDL_Surface * s, SDL_Overlay * o, int monochrome,
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int luminance)
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{
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int x, y;
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int yuv[3];
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Uint8 *p, *op[3];
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SDL_LockSurface(s);
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SDL_LockYUVOverlay(o);
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/* Convert */
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for (y = 0; y < s->h && y < o->h; y++) {
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p = ((Uint8 *) s->pixels) + s->pitch * y;
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op[0] = o->pixels[0] + o->pitches[0] * y;
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op[1] = o->pixels[1] + o->pitches[1] * (y / 2);
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op[2] = o->pixels[2] + o->pitches[2] * (y / 2);
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for (x = 0; x < s->w && x < o->w; x++) {
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RGBtoYUV(p, yuv, monochrome, luminance);
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*(op[0]++) = yuv[0];
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if (x % 2 == 0 && y % 2 == 0) {
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*(op[1]++) = yuv[2];
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*(op[2]++) = yuv[1];
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}
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p += s->format->BytesPerPixel;
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}
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}
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SDL_UnlockYUVOverlay(o);
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SDL_UnlockSurface(s);
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}
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void
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ConvertRGBtoIYUV(SDL_Surface * s, SDL_Overlay * o, int monochrome,
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int luminance)
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{
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int x, y;
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int yuv[3];
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Uint8 *p, *op[3];
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SDL_LockSurface(s);
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SDL_LockYUVOverlay(o);
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/* Convert */
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for (y = 0; y < s->h && y < o->h; y++) {
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p = ((Uint8 *) s->pixels) + s->pitch * y;
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op[0] = o->pixels[0] + o->pitches[0] * y;
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op[1] = o->pixels[1] + o->pitches[1] * (y / 2);
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op[2] = o->pixels[2] + o->pitches[2] * (y / 2);
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for (x = 0; x < s->w && x < o->w; x++) {
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RGBtoYUV(p, yuv, monochrome, luminance);
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*(op[0]++) = yuv[0];
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if (x % 2 == 0 && y % 2 == 0) {
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*(op[1]++) = yuv[1];
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*(op[2]++) = yuv[2];
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}
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p += s->format->BytesPerPixel;
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}
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}
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SDL_UnlockYUVOverlay(o);
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SDL_UnlockSurface(s);
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}
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void
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ConvertRGBtoUYVY(SDL_Surface * s, SDL_Overlay * o, int monochrome,
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int luminance)
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{
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int x, y;
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int yuv[3];
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Uint8 *p, *op;
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SDL_LockSurface(s);
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SDL_LockYUVOverlay(o);
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for (y = 0; y < s->h && y < o->h; y++) {
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p = ((Uint8 *) s->pixels) + s->pitch * y;
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op = o->pixels[0] + o->pitches[0] * y;
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for (x = 0; x < s->w && x < o->w; x++) {
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RGBtoYUV(p, yuv, monochrome, luminance);
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if (x % 2 == 0) {
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*(op++) = yuv[1];
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*(op++) = yuv[0];
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*(op++) = yuv[2];
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} else
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*(op++) = yuv[0];
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p += s->format->BytesPerPixel;
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}
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}
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SDL_UnlockYUVOverlay(o);
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SDL_UnlockSurface(s);
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}
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void
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ConvertRGBtoYVYU(SDL_Surface * s, SDL_Overlay * o, int monochrome,
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int luminance)
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{
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int x, y;
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int yuv[3];
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Uint8 *p, *op;
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SDL_LockSurface(s);
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SDL_LockYUVOverlay(o);
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for (y = 0; y < s->h && y < o->h; y++) {
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p = ((Uint8 *) s->pixels) + s->pitch * y;
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op = o->pixels[0] + o->pitches[0] * y;
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for (x = 0; x < s->w && x < o->w; x++) {
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RGBtoYUV(p, yuv, monochrome, luminance);
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if (x % 2 == 0) {
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*(op++) = yuv[0];
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*(op++) = yuv[2];
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op[1] = yuv[1];
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} else {
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*op = yuv[0];
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op += 2;
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}
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p += s->format->BytesPerPixel;
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}
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}
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SDL_UnlockYUVOverlay(o);
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SDL_UnlockSurface(s);
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}
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void
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ConvertRGBtoYUY2(SDL_Surface * s, SDL_Overlay * o, int monochrome,
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int luminance)
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{
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int x, y;
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int yuv[3];
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Uint8 *p, *op;
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SDL_LockSurface(s);
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SDL_LockYUVOverlay(o);
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for (y = 0; y < s->h && y < o->h; y++) {
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p = ((Uint8 *) s->pixels) + s->pitch * y;
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op = o->pixels[0] + o->pitches[0] * y;
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for (x = 0; x < s->w && x < o->w; x++) {
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RGBtoYUV(p, yuv, monochrome, luminance);
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if (x % 2 == 0) {
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*(op++) = yuv[0];
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*(op++) = yuv[1];
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op[1] = yuv[2];
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} else {
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*op = yuv[0];
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op += 2;
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}
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p += s->format->BytesPerPixel;
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}
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}
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SDL_UnlockYUVOverlay(o);
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SDL_UnlockSurface(s);
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}
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static void
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PrintUsage(char *argv0)
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{
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fprintf(stderr, "Usage: %s [arg] [arg] [arg] ...\n", argv0);
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fprintf(stderr, "\n");
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fprintf(stderr, "Where 'arg' is any of the following options:\n");
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fprintf(stderr, "\n");
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fprintf(stderr, " -fps <frames per second>\n");
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fprintf(stderr,
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" -format <fmt> (one of the: YV12, IYUV, YUY2, UYVY, YVYU)\n");
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fprintf(stderr,
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" -scale <scale factor> (initial scale of the overlay)\n");
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fprintf(stderr, " -help (shows this help)\n");
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fprintf(stderr, "\n");
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fprintf(stderr,
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"Press ESC to exit, or SPACE to freeze the movie while application running.\n");
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fprintf(stderr, "\n");
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}
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int
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main(int argc, char **argv)
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{
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Uint8 *RawMooseData;
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SDL_RWops *handle;
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SDL_Surface *screen;
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SDL_Surface *MooseFrame[MOOSEFRAMES_COUNT];
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SDL_Overlay *overlay;
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SDL_Rect overlayrect;
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SDL_Event event;
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Uint32 lastftick;
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int paused = 0;
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int resized = 0;
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int i;
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int fps = 12;
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int fpsdelay;
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int overlay_format = SDL_YUY2_OVERLAY;
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int scale = 5;
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if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) {
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fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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return 3;
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}
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while (argc > 1) {
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if (strcmp(argv[1], "-fps") == 0) {
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if (argv[2]) {
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fps = atoi(argv[2]);
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if (fps == 0) {
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fprintf(stderr,
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"The -fps option requires an argument [from 1 to 1000], default is 12.\n");
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quit(10);
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}
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if ((fps < 0) || (fps > 1000)) {
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fprintf(stderr,
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"The -fps option must be in range from 1 to 1000, default is 12.\n");
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quit(10);
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}
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argv += 2;
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argc -= 2;
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} else {
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fprintf(stderr,
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"The -fps option requires an argument [from 1 to 1000], default is 12.\n");
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quit(10);
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}
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} else if (strcmp(argv[1], "-format") == 0) {
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if (argv[2]) {
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if (!strcmp(argv[2], "YV12"))
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overlay_format = SDL_YV12_OVERLAY;
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else if (!strcmp(argv[2], "IYUV"))
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overlay_format = SDL_IYUV_OVERLAY;
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else if (!strcmp(argv[2], "YUY2"))
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overlay_format = SDL_YUY2_OVERLAY;
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else if (!strcmp(argv[2], "UYVY"))
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overlay_format = SDL_UYVY_OVERLAY;
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else if (!strcmp(argv[2], "YVYU"))
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overlay_format = SDL_YVYU_OVERLAY;
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else {
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fprintf(stderr,
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"The -format option %s is not recognized, see help for info.\n",
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argv[2]);
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quit(10);
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}
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argv += 2;
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argc -= 2;
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} else {
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fprintf(stderr,
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"The -format option requires an argument, default is YUY2.\n");
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quit(10);
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}
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} else if (strcmp(argv[1], "-scale") == 0) {
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if (argv[2]) {
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scale = atoi(argv[2]);
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if (scale == 0) {
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fprintf(stderr,
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"The -scale option requires an argument [from 1 to 50], default is 5.\n");
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quit(10);
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}
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if ((scale < 0) || (scale > 50)) {
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fprintf(stderr,
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"The -scale option must be in range from 1 to 50, default is 5.\n");
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quit(10);
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}
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argv += 2;
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argc -= 2;
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} else {
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fprintf(stderr,
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"The -fps option requires an argument [from 1 to 1000], default is 12.\n");
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quit(10);
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}
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} else if ((strcmp(argv[1], "-help") == 0)
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|| (strcmp(argv[1], "-h") == 0)) {
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PrintUsage(argv[0]);
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quit(0);
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} else {
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fprintf(stderr, "Unrecognized option: %s.\n", argv[1]);
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quit(10);
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}
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break;
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}
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RawMooseData = (Uint8 *) malloc(MOOSEFRAME_SIZE * MOOSEFRAMES_COUNT);
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if (RawMooseData == NULL) {
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fprintf(stderr, "Can't allocate memory for movie !\n");
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free(RawMooseData);
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quit(1);
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}
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/* load the trojan moose images */
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handle = SDL_RWFromFile("moose.dat", "rb");
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if (handle == NULL) {
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fprintf(stderr, "Can't find the file moose.dat !\n");
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free(RawMooseData);
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quit(2);
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}
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SDL_RWread(handle, RawMooseData, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT);
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SDL_RWclose(handle);
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/* Set video mode */
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if ((screen =
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SDL_SetVideoMode(MOOSEPIC_W * scale, MOOSEPIC_H * scale, 0,
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SDL_RESIZABLE | SDL_SWSURFACE)) == NULL) {
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fprintf(stderr, "Couldn't set video mode: %s\n", SDL_GetError());
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free(RawMooseData);
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quit(4);
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}
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/* Set the window manager title bar */
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SDL_WM_SetCaption("SDL test overlay: running moose", "testoverlay2");
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for (i = 0; i < MOOSEFRAMES_COUNT; i++) {
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MooseFrame[i] =
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SDL_CreateRGBSurfaceFrom(RawMooseData + i * MOOSEFRAME_SIZE,
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MOOSEPIC_W, MOOSEPIC_H, 8, MOOSEPIC_W,
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0, 0, 0, 0);
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if (MooseFrame[i] == NULL) {
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fprintf(stderr, "Couldn't create SDL_Surfaces:%s\n",
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SDL_GetError());
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free(RawMooseData);
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quit(5);
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}
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SDL_SetColors(MooseFrame[i], MooseColors, 0, 84);
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{
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SDL_Surface *newsurf;
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SDL_PixelFormat format;
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format.palette = NULL;
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format.BitsPerPixel = 32;
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format.BytesPerPixel = 4;
|
|
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|
|
format.Rshift = 0;
|
|
format.Gshift = 8;
|
|
format.Bshift = 16;
|
|
#else
|
|
format.Rshift = 24;
|
|
format.Gshift = 16;
|
|
format.Bshift = 8;
|
|
#endif
|
|
format.Ashift = 0;
|
|
format.Rmask = 0xff << format.Rshift;
|
|
format.Gmask = 0xff << format.Gshift;
|
|
format.Bmask = 0xff << format.Bshift;
|
|
format.Amask = 0;
|
|
format.Rloss = 0;
|
|
format.Gloss = 0;
|
|
format.Bloss = 0;
|
|
format.Aloss = 8;
|
|
|
|
newsurf =
|
|
SDL_ConvertSurface(MooseFrame[i], &format, SDL_SWSURFACE);
|
|
if (!newsurf) {
|
|
fprintf(stderr,
|
|
"Couldn't convert picture to 32bits RGB: %s\n",
|
|
SDL_GetError());
|
|
quit(6);
|
|
}
|
|
SDL_FreeSurface(MooseFrame[i]);
|
|
MooseFrame[i] = newsurf;
|
|
}
|
|
}
|
|
|
|
free(RawMooseData);
|
|
|
|
overlay =
|
|
SDL_CreateYUVOverlay(MOOSEPIC_W, MOOSEPIC_H, overlay_format, screen);
|
|
if (!overlay) {
|
|
fprintf(stderr, "Couldn't create overlay: %s\n", SDL_GetError());
|
|
quit(7);
|
|
}
|
|
|
|
printf("Created %dx%dx%d %s %s overlay\n", overlay->w, overlay->h,
|
|
overlay->planes, overlay->hw_overlay ? "hardware" : "software",
|
|
overlay->format == SDL_YV12_OVERLAY ? "YV12" : overlay->format ==
|
|
SDL_IYUV_OVERLAY ? "IYUV" : overlay->format ==
|
|
SDL_YUY2_OVERLAY ? "YUY2" : overlay->format ==
|
|
SDL_UYVY_OVERLAY ? "UYVY" : overlay->format ==
|
|
SDL_YVYU_OVERLAY ? "YVYU" : "Unknown");
|
|
|
|
for (i = 0; i < overlay->planes; i++) {
|
|
printf(" plane %d: pitch=%d\n", i, overlay->pitches[i]);
|
|
}
|
|
|
|
overlayrect.x = 0;
|
|
overlayrect.y = 0;
|
|
overlayrect.w = MOOSEPIC_W * scale;
|
|
overlayrect.h = MOOSEPIC_H * scale;
|
|
|
|
/* set the start frame */
|
|
i = 0;
|
|
fpsdelay = 1000 / fps;
|
|
|
|
/* Ignore key up events, they don't even get filtered */
|
|
SDL_EventState(SDL_KEYUP, SDL_IGNORE);
|
|
|
|
lastftick = SDL_GetTicks();
|
|
|
|
/* Loop, waiting for QUIT or RESIZE */
|
|
while (1) {
|
|
if (SDL_PollEvent(&event)) {
|
|
switch (event.type) {
|
|
case SDL_VIDEORESIZE:
|
|
screen =
|
|
SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
|
|
SDL_RESIZABLE | SDL_SWSURFACE);
|
|
overlayrect.w = event.resize.w;
|
|
overlayrect.h = event.resize.h;
|
|
if (paused) {
|
|
resized = 1;
|
|
}
|
|
break;
|
|
case SDL_MOUSEBUTTONDOWN:
|
|
overlayrect.x = event.button.x - overlayrect.w / 2;
|
|
overlayrect.y = event.button.y - overlayrect.h / 2;
|
|
break;
|
|
case SDL_KEYDOWN:
|
|
if (event.key.keysym.sym == SDLK_SPACE) {
|
|
paused = !paused;
|
|
break;
|
|
}
|
|
if (event.key.keysym.sym != SDLK_ESCAPE) {
|
|
break;
|
|
}
|
|
case SDL_QUIT:
|
|
SDL_FreeYUVOverlay(overlay);
|
|
for (i = 0; i < MOOSEFRAMES_COUNT; i++) {
|
|
SDL_FreeSurface(MooseFrame[i]);
|
|
}
|
|
quit(0);
|
|
}
|
|
}
|
|
|
|
if ((!paused) || (resized)) {
|
|
if (((SDL_GetTicks() - lastftick) > fpsdelay) || (resized)) {
|
|
lastftick = SDL_GetTicks();
|
|
|
|
switch (overlay_format) {
|
|
case SDL_YUY2_OVERLAY:
|
|
ConvertRGBtoYUY2(MooseFrame[i], overlay, 0, 100);
|
|
break;
|
|
case SDL_YV12_OVERLAY:
|
|
ConvertRGBtoYV12(MooseFrame[i], overlay, 0, 100);
|
|
break;
|
|
case SDL_UYVY_OVERLAY:
|
|
ConvertRGBtoUYVY(MooseFrame[i], overlay, 0, 100);
|
|
break;
|
|
case SDL_YVYU_OVERLAY:
|
|
ConvertRGBtoYVYU(MooseFrame[i], overlay, 0, 100);
|
|
break;
|
|
case SDL_IYUV_OVERLAY:
|
|
ConvertRGBtoIYUV(MooseFrame[i], overlay, 0, 100);
|
|
break;
|
|
}
|
|
|
|
SDL_DisplayYUVOverlay(overlay, &overlayrect);
|
|
if (!resized) {
|
|
i++;
|
|
if (i == 10) {
|
|
i = 0;
|
|
}
|
|
} else {
|
|
resized = 0;
|
|
}
|
|
}
|
|
}
|
|
/* kind of timeslice to OS */
|
|
SDL_Delay(1);
|
|
}
|
|
|
|
SDL_Quit();
|
|
return 0;
|
|
}
|