1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
#include "SDL/SDL.h"
#include "SDL/SDL_image.h"
#include "SDL/SDL_rotozoom.h"
#ifdef EMSCRIPTEN
#include "emscripten.h"
#endif
const int numSprites = 9;
SDL_Surface *screen;
SDL_Surface *sprite[numSprites];
void mainloop() {
int i;
int row = 0;
SDL_Rect rect = { 0, 0, 100, 100 };
for (i = 0; i < numSprites; i++) {
rect.x = i & 1 ? 200 : 0;
rect.y = row * 200;
row += i & 1;
SDL_BlitSurface(sprite[i], 0, screen, &rect);
SDL_UpdateRect(screen, 0, 0, 0, 0);
}
}
int main(int argc, char **argv) {
SDL_Init(SDL_INIT_VIDEO);
const int width = 400;
const int height = 200 * (numSprites + 1) / 2;
screen = SDL_SetVideoMode(width, height, 32, SDL_SWSURFACE);
SDL_Rect rect = { 0, 0, width, height };
SDL_FillRect(screen, &rect, SDL_MapRGBA(screen->format, 0, 0, 0, 0xff));
sprite[0] = IMG_Load("screenshot.png");
sprite[1] = SDL_CreateRGBSurface(SDL_SWSURFACE, 100, 100, 32, 0xFF000000, 0xFF0000, 0xFF00, 0xFF);
SDL_FillRect(sprite[1], 0, 0xA0A0A0A0);
sprite[2] = zoomSurface(sprite[0], 0.5, 0.5, SMOOTHING_ON);
sprite[3] = zoomSurface(sprite[1], 0.5, 0.5, SMOOTHING_ON);
sprite[4] = rotozoomSurface(sprite[0], -20, 0.3, SMOOTHING_ON);
sprite[5] = rotozoomSurface(sprite[1], 20, 1, SMOOTHING_ON);
sprite[6] = zoomSurface(sprite[0], -0.5, 0.5, SMOOTHING_ON);
sprite[7] = zoomSurface(sprite[0], -0.5, -0.5, SMOOTHING_ON);
sprite[8] = rotozoomSurface(sprite[1], 0, 0.5, SMOOTHING_ON);
mainloop();
#ifndef EMSCRIPTEN
SDL_Event evt;
SDL_SaveBMP(screen, "native_output.bmp");
while (1) {
if (SDL_PollEvent(&evt) != 0 && evt.type == SDL_QUIT) break;
//mainloop();
SDL_Delay(33);
}
#endif
SDL_Quit();
return 1;
}
|
