SDL  2.0
testoverlay2.c File Reference
#include "SDL.h"
#include "testyuv_cvt.h"
+ Include dependency graph for testoverlay2.c:

Go to the source code of this file.

Macros

#define MOOSEPIC_W   64
 
#define MOOSEPIC_H   88
 
#define MOOSEFRAME_SIZE   (MOOSEPIC_W * MOOSEPIC_H)
 
#define MOOSEFRAMES_COUNT   10
 

Functions

static void quit (int rc)
 
static void PrintUsage (char *argv0)
 
void loop ()
 
int main (int argc, char **argv)
 

Variables

SDL_Color MooseColors [84]
 
Uint8 MooseFrame [MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE *2]
 
SDL_TextureMooseTexture
 
SDL_Rect displayrect
 
int window_w
 
int window_h
 
SDL_Windowwindow
 
SDL_Rendererrenderer
 
int paused = 0
 
int i
 
SDL_bool done = SDL_FALSE
 
static int fpsdelay
 

Macro Definition Documentation

◆ MOOSEFRAME_SIZE

#define MOOSEFRAME_SIZE   (MOOSEPIC_W * MOOSEPIC_H)

Definition at line 30 of file testoverlay2.c.

◆ MOOSEFRAMES_COUNT

#define MOOSEFRAMES_COUNT   10

Definition at line 31 of file testoverlay2.c.

◆ MOOSEPIC_H

#define MOOSEPIC_H   88

Definition at line 28 of file testoverlay2.c.

◆ MOOSEPIC_W

#define MOOSEPIC_W   64

Definition at line 27 of file testoverlay2.c.

Function Documentation

◆ loop()

void loop ( )

Definition at line 178 of file testoverlay2.c.

179 {
181 
182  while (SDL_PollEvent(&event)) {
183  switch (event.type) {
184  case SDL_WINDOWEVENT:
185  if (event.window.event == SDL_WINDOWEVENT_RESIZED) {
187  displayrect.w = window_w = event.window.data1;
188  displayrect.h = window_h = event.window.data2;
189  }
190  break;
191  case SDL_MOUSEBUTTONDOWN:
192  displayrect.x = event.button.x - window_w / 2;
193  displayrect.y = event.button.y - window_h / 2;
194  break;
195  case SDL_MOUSEMOTION:
196  if (event.motion.state) {
197  displayrect.x = event.motion.x - window_w / 2;
198  displayrect.y = event.motion.y - window_h / 2;
199  }
200  break;
201  case SDL_KEYDOWN:
202  if (event.key.keysym.sym == SDLK_SPACE) {
203  paused = !paused;
204  break;
205  }
206  if (event.key.keysym.sym != SDLK_ESCAPE) {
207  break;
208  }
209  case SDL_QUIT:
210  done = SDL_TRUE;
211  break;
212  }
213  }
214 
215 #ifndef __EMSCRIPTEN__
217 #endif
218 
219  if (!paused) {
220  i = (i + 1) % MOOSEFRAMES_COUNT;
221 
223  }
227 
228 #ifdef __EMSCRIPTEN__
229  if (done) {
230  emscripten_cancel_main_loop();
231  }
232 #endif
233 }

References displayrect, done, fpsdelay, SDL_Rect::h, i, MooseFrame, MOOSEFRAMES_COUNT, MOOSEPIC_W, MooseTexture, NULL, paused, renderer, SDL_Delay, SDL_KEYDOWN, SDL_MOUSEBUTTONDOWN, SDL_MOUSEMOTION, SDL_PollEvent, SDL_QUIT, SDL_RenderClear, SDL_RenderCopy, SDL_RenderPresent, SDL_RenderSetViewport, SDL_TRUE, SDL_UpdateTexture, SDL_WINDOWEVENT, SDL_WINDOWEVENT_RESIZED, SDLK_ESCAPE, SDLK_SPACE, SDL_Rect::w, window_h, window_w, SDL_Rect::x, and SDL_Rect::y.

Referenced by main().

◆ main()

int main ( int  argc,
char **  argv 
)

Definition at line 236 of file testoverlay2.c.

237 {
238  Uint8 *RawMooseData;
239  SDL_RWops *handle;
241  int j;
242  int fps = 12;
243  int nodelay = 0;
244  int scale = 5;
245 
246  /* Enable standard application logging */
248 
249  if (SDL_Init(SDL_INIT_VIDEO) < 0) {
250  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
251  return 3;
252  }
253 
254  while (argc > 1) {
255  if (SDL_strcmp(argv[1], "-fps") == 0) {
256  if (argv[2]) {
257  fps = SDL_atoi(argv[2]);
258  if (fps == 0) {
260  "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
261  quit(10);
262  }
263  if ((fps < 0) || (fps > 1000)) {
265  "The -fps option must be in range from 1 to 1000, default is 12.\n");
266  quit(10);
267  }
268  argv += 2;
269  argc -= 2;
270  } else {
272  "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
273  quit(10);
274  }
275  } else if (SDL_strcmp(argv[1], "-nodelay") == 0) {
276  nodelay = 1;
277  argv += 1;
278  argc -= 1;
279  } else if (SDL_strcmp(argv[1], "-scale") == 0) {
280  if (argv[2]) {
281  scale = SDL_atoi(argv[2]);
282  if (scale == 0) {
284  "The -scale option requires an argument [from 1 to 50], default is 5.\n");
285  quit(10);
286  }
287  if ((scale < 0) || (scale > 50)) {
289  "The -scale option must be in range from 1 to 50, default is 5.\n");
290  quit(10);
291  }
292  argv += 2;
293  argc -= 2;
294  } else {
296  "The -fps option requires an argument [from 1 to 1000], default is 12.\n");
297  quit(10);
298  }
299  } else if ((SDL_strcmp(argv[1], "-help") == 0)
300  || (SDL_strcmp(argv[1], "-h") == 0)) {
301  PrintUsage(argv[0]);
302  quit(0);
303  } else {
304  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unrecognized option: %s.\n", argv[1]);
305  quit(10);
306  }
307  break;
308  }
309 
310  RawMooseData = (Uint8 *) SDL_malloc(MOOSEFRAME_SIZE * MOOSEFRAMES_COUNT);
311  if (RawMooseData == NULL) {
312  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Can't allocate memory for movie !\n");
313  quit(1);
314  }
315 
316  /* load the trojan moose images */
317  handle = SDL_RWFromFile("moose.dat", "rb");
318  if (handle == NULL) {
319  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Can't find the file moose.dat !\n");
320  SDL_free(RawMooseData);
321  quit(2);
322  }
323 
325 
327 
328  /* Create the window and renderer */
331  window = SDL_CreateWindow("Happy Moose",
336  if (!window) {
337  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create window: %s\n", SDL_GetError());
338  SDL_free(RawMooseData);
339  quit(4);
340  }
341 
343  if (!renderer) {
344  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create renderer: %s\n", SDL_GetError());
345  SDL_free(RawMooseData);
346  quit(4);
347  }
348 
350  if (!MooseTexture) {
351  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s\n", SDL_GetError());
352  SDL_free(RawMooseData);
353  quit(5);
354  }
355  /* Uncomment this to check vertex color with a YUV texture */
356  /* SDL_SetTextureColorMod(MooseTexture, 0xff, 0x80, 0x80); */
357 
358  for (i = 0; i < MOOSEFRAMES_COUNT; i++) {
359  Uint8 MooseFrameRGB[MOOSEFRAME_SIZE*3];
360  Uint8 *rgb;
361  Uint8 *frame;
362 
363  rgb = MooseFrameRGB;
364  frame = RawMooseData + i * MOOSEFRAME_SIZE;
365  for (j = 0; j < MOOSEFRAME_SIZE; ++j) {
366  rgb[0] = MooseColors[frame[j]].r;
367  rgb[1] = MooseColors[frame[j]].g;
368  rgb[2] = MooseColors[frame[j]].b;
369  rgb += 3;
370  }
373  0, 100);
374  }
375 
376  SDL_free(RawMooseData);
377 
378  /* set the start frame */
379  i = 0;
380  if (nodelay) {
381  fpsdelay = 0;
382  } else {
383  fpsdelay = 1000 / fps;
384  }
385 
386  displayrect.x = 0;
387  displayrect.y = 0;
390 
391  /* Ignore key up events, they don't even get filtered */
393 
394  /* Loop, waiting for QUIT or RESIZE */
395 #ifdef __EMSCRIPTEN__
396  emscripten_set_main_loop(loop, nodelay ? 0 : fps, 1);
397 #else
398  while (!done) {
399  loop();
400  }
401 #endif
402 
404  quit(0);
405  return 0;
406 }

References SDL_Color::b, ConvertRGBtoYUV(), displayrect, done, fpsdelay, frame, SDL_Color::g, SDL_Rect::h, i, j, loop(), MooseColors, MooseFrame, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT, MOOSEPIC_H, MOOSEPIC_W, MooseTexture, NULL, PrintUsage(), quit(), SDL_Color::r, renderer, SDL_atoi, SDL_CreateRenderer, SDL_CreateTexture, SDL_CreateWindow, SDL_DestroyRenderer, SDL_EventState, SDL_free, SDL_GetError, SDL_GetYUVConversionModeForResolution, SDL_IGNORE, SDL_Init, SDL_INIT_VIDEO, SDL_KEYUP, SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, SDL_LogError, SDL_LogSetPriority, SDL_malloc, SDL_PIXELFORMAT_YV12, SDL_RWclose, SDL_RWFromFile, SDL_RWread, SDL_strcmp, SDL_TEXTUREACCESS_STREAMING, SDL_WINDOW_RESIZABLE, SDL_WINDOWPOS_UNDEFINED, SDL_Rect::w, window, window_h, window_w, SDL_Rect::x, and SDL_Rect::y.

◆ PrintUsage()

static void PrintUsage ( char *  argv0)
static

Definition at line 161 of file testoverlay2.c.

162 {
163  SDL_Log("Usage: %s [arg] [arg] [arg] ...\n", argv0);
164  SDL_Log("\n");
165  SDL_Log("Where 'arg' is any of the following options:\n");
166  SDL_Log("\n");
167  SDL_Log(" -fps <frames per second>\n");
168  SDL_Log(" -nodelay\n");
169  SDL_Log(" -format <fmt> (one of the: YV12, IYUV, YUY2, UYVY, YVYU)\n");
170  SDL_Log(" -scale <scale factor> (initial scale of the overlay)\n");
171  SDL_Log(" -help (shows this help)\n");
172  SDL_Log("\n");
173  SDL_Log("Press ESC to exit, or SPACE to freeze the movie while application running.\n");
174  SDL_Log("\n");
175 }

References SDL_Log.

Referenced by main().

◆ quit()

static void quit ( int  rc)
static

Definition at line 154 of file testoverlay2.c.

155 {
156  SDL_Quit();
157  exit(rc);
158 }

References SDL_Quit.

Referenced by main().

Variable Documentation

◆ displayrect

SDL_Rect displayrect

Definition at line 142 of file testoverlay2.c.

Referenced by loop(), and main().

◆ done

Definition at line 149 of file testoverlay2.c.

Referenced by loop(), and main().

◆ fpsdelay

int fpsdelay
static

Definition at line 150 of file testoverlay2.c.

Referenced by loop(), and main().

◆ i

int i

Definition at line 148 of file testoverlay2.c.

Referenced by loop(), and main().

◆ MooseColors

SDL_Color MooseColors[84]

Definition at line 33 of file testoverlay2.c.

Referenced by main().

◆ MooseFrame

Definition at line 140 of file testoverlay2.c.

Referenced by loop(), and main().

◆ MooseTexture

SDL_Texture* MooseTexture

Definition at line 141 of file testoverlay2.c.

Referenced by loop(), and main().

◆ paused

int paused = 0

Definition at line 147 of file testoverlay2.c.

Referenced by loop().

◆ renderer

SDL_Renderer* renderer

Definition at line 146 of file testoverlay2.c.

Referenced by loop(), and main().

◆ window

Definition at line 145 of file testoverlay2.c.

Referenced by main().

◆ window_h

int window_h

Definition at line 144 of file testoverlay2.c.

Referenced by loop(), main(), MoveSprites(), and SDL_CreateRenderer().

◆ window_w

int window_w

Definition at line 143 of file testoverlay2.c.

Referenced by loop(), main(), MoveSprites(), and SDL_CreateRenderer().

SDL_GetError
#define SDL_GetError
Definition: SDL_dynapi_overrides.h:113
SDL_RenderPresent
#define SDL_RenderPresent
Definition: SDL_dynapi_overrides.h:346
scale
GLenum GLenum GLenum GLenum GLenum scale
Definition: SDL_opengl_glext.h:9375
SDL_Color::b
Uint8 b
Definition: SDL_pixels.h:299
MooseColors
SDL_Color MooseColors[84]
Definition: testoverlay2.c:33
renderer
SDL_Renderer * renderer
Definition: testoverlay2.c:146
SDL_RenderSetViewport
#define SDL_RenderSetViewport
Definition: SDL_dynapi_overrides.h:324
SDL_PollEvent
#define SDL_PollEvent
Definition: SDL_dynapi_overrides.h:122
MOOSEFRAMES_COUNT
#define MOOSEFRAMES_COUNT
Definition: testoverlay2.c:31
SDL_LOG_CATEGORY_APPLICATION
@ SDL_LOG_CATEGORY_APPLICATION
Definition: SDL_log.h:66
window_w
int window_w
Definition: testoverlay2.c:143
NULL
#define NULL
Definition: begin_code.h:167
handle
EGLImageKHR EGLint EGLint * handle
Definition: eglext.h:937
SDL_KEYUP
@ SDL_KEYUP
Definition: SDL_events.h:97
MooseFrame
Uint8 MooseFrame[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE *2]
Definition: testoverlay2.c:140
SDL_Color::r
Uint8 r
Definition: SDL_pixels.h:297
SDL_WINDOWEVENT_RESIZED
@ SDL_WINDOWEVENT_RESIZED
Definition: SDL_video.h:155
SDL_WINDOWPOS_UNDEFINED
#define SDL_WINDOWPOS_UNDEFINED
Definition: SDL_video.h:130
window
SDL_Window * window
Definition: testoverlay2.c:145
SDL_RWread
#define SDL_RWread
Definition: SDL_dynapi_overrides.h:723
SDL_KEYDOWN
@ SDL_KEYDOWN
Definition: SDL_events.h:96
SDL_CreateWindow
#define SDL_CreateWindow
Definition: SDL_dynapi_overrides.h:514
SDL_Rect::x
int x
Definition: SDL_rect.h:79
SDL_LogError
#define SDL_LogError
Definition: SDL_dynapi_overrides.h:36
SDL_WINDOW_RESIZABLE
@ SDL_WINDOW_RESIZABLE
Definition: SDL_video.h:105
SDL_Rect::w
int w
Definition: SDL_rect.h:80
PrintUsage
static void PrintUsage(char *argv0)
Definition: testoverlay2.c:161
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:73
SDLK_ESCAPE
@ SDLK_ESCAPE
Definition: SDL_keycode.h:55
SDL_UpdateTexture
#define SDL_UpdateTexture
Definition: SDL_dynapi_overrides.h:315
loop
void loop()
Definition: testoverlay2.c:178
event
struct _cl_event * event
Definition: SDL_opengl_glext.h:2649
SDL_MOUSEMOTION
@ SDL_MOUSEMOTION
Definition: SDL_events.h:105
SDL_RenderCopy
#define SDL_RenderCopy
Definition: SDL_dynapi_overrides.h:343
window_h
int window_h
Definition: testoverlay2.c:144
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
SDL_Log
#define SDL_Log
Definition: SDL_dynapi_overrides.h:31
SDL_Color::g
Uint8 g
Definition: SDL_pixels.h:298
SDL_Rect::y
int y
Definition: SDL_rect.h:79
SDL_Rect::h
int h
Definition: SDL_rect.h:80
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
SDL_RWFromFile
#define SDL_RWFromFile
Definition: SDL_dynapi_overrides.h:351
MooseTexture
SDL_Texture * MooseTexture
Definition: testoverlay2.c:141
SDL_QUIT
@ SDL_QUIT
Definition: SDL_events.h:60
SDLK_SPACE
@ SDLK_SPACE
Definition: SDL_keycode.h:58
frame
int frame
Definition: teststreaming.c:60
SDL_Quit
#define SDL_Quit
Definition: SDL_dynapi_overrides.h:58
displayrect
SDL_Rect displayrect
Definition: testoverlay2.c:142
SDL_Delay
#define SDL_Delay
Definition: SDL_dynapi_overrides.h:486
i
int i
Definition: testoverlay2.c:148
SDL_atoi
#define SDL_atoi
Definition: SDL_dynapi_overrides.h:410
SDL_INIT_VIDEO
#define SDL_INIT_VIDEO
Definition: SDL.h:79
SDL_LOG_PRIORITY_INFO
@ SDL_LOG_PRIORITY_INFO
Definition: SDL_log.h:106
SDL_TRUE
@ SDL_TRUE
Definition: SDL_stdinc.h:164
SDL_LogSetPriority
#define SDL_LogSetPriority
Definition: SDL_dynapi_overrides.h:236
MOOSEPIC_H
#define MOOSEPIC_H
Definition: testoverlay2.c:28
j
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int in j)
Definition: SDL_x11sym.h:50
quit
static void quit(int rc)
Definition: testoverlay2.c:154
done
SDL_bool done
Definition: testoverlay2.c:149
MOOSEPIC_W
#define MOOSEPIC_W
Definition: testoverlay2.c:27
SDL_RWclose
#define SDL_RWclose
Definition: SDL_dynapi_overrides.h:725
SDL_IGNORE
#define SDL_IGNORE
Definition: SDL_events.h:757
SDL_RenderClear
#define SDL_RenderClear
Definition: SDL_dynapi_overrides.h:334
SDL_EventState
#define SDL_EventState
Definition: SDL_dynapi_overrides.h:131
SDL_MOUSEBUTTONDOWN
@ SDL_MOUSEBUTTONDOWN
Definition: SDL_events.h:106
MOOSEFRAME_SIZE
#define MOOSEFRAME_SIZE
Definition: testoverlay2.c:30
SDL_GetYUVConversionModeForResolution
#define SDL_GetYUVConversionModeForResolution
Definition: SDL_dynapi_overrides.h:665
paused
int paused
Definition: testoverlay2.c:147
SDL_Event
General event structure.
Definition: SDL_events.h:557
SDL_WINDOWEVENT
@ SDL_WINDOWEVENT
Definition: SDL_events.h:92
ConvertRGBtoYUV
SDL_bool ConvertRGBtoYUV(Uint32 format, Uint8 *src, int pitch, Uint8 *out, int w, int h, SDL_YUV_CONVERSION_MODE mode, int monochrome, int luminance)
Definition: testyuv_cvt.c:262
SDL_malloc
#define SDL_malloc
Definition: SDL_dynapi_overrides.h:374
SDL_CreateRenderer
#define SDL_CreateRenderer
Definition: SDL_dynapi_overrides.h:301
SDL_strcmp
#define SDL_strcmp
Definition: SDL_dynapi_overrides.h:417
SDL_PIXELFORMAT_YV12
@ SDL_PIXELFORMAT_YV12
Definition: SDL_pixels.h:277
SDL_Init
#define SDL_Init
Definition: SDL_dynapi_overrides.h:54
SDL_DestroyRenderer
#define SDL_DestroyRenderer
Definition: SDL_dynapi_overrides.h:348
SDL_TEXTUREACCESS_STREAMING
@ SDL_TEXTUREACCESS_STREAMING
Definition: SDL_render.h:94
SDL_RWops
Definition: SDL_rwops.h:52
fpsdelay
static int fpsdelay
Definition: testoverlay2.c:150
SDL_CreateTexture
#define SDL_CreateTexture
Definition: SDL_dynapi_overrides.h:306
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:179