SDL  2.0
video.c File Reference
#include "../../SDL_internal.h"
#include "../SDL_sysvideo.h"
#include "sdl_qnx.h"
+ Include dependency graph for video.c:

Go to the source code of this file.

Functions

static int videoInit (_THIS)
 
static void videoQuit (_THIS)
 
static int createWindow (_THIS, SDL_Window *window)
 
static int createWindowFramebuffer (_THIS, SDL_Window *window, Uint32 *format, void **pixels, int *pitch)
 
static int updateWindowFramebuffer (_THIS, SDL_Window *window, const SDL_Rect *rects, int numrects)
 
static void pumpEvents (_THIS)
 
static void setWindowSize (_THIS, SDL_Window *window)
 
static void showWindow (_THIS, SDL_Window *window)
 
static void hideWindow (_THIS, SDL_Window *window)
 
static void destroyWindow (_THIS, SDL_Window *window)
 
static void deleteDevice (SDL_VideoDevice *device)
 
static SDL_VideoDevicecreateDevice (int devindex)
 
static int available ()
 

Variables

static screen_context_t context
 
static screen_event_t event
 
VideoBootStrap QNX_bootstrap
 

Function Documentation

◆ available()

static int available ( )
static

Definition at line 356 of file video.c.

357 {
358  return 1;
359 }

Referenced by SDL_VideoInit().

◆ createDevice()

static SDL_VideoDevice* createDevice ( int  devindex)
static

Creates the QNX video plugin used by SDL.

Parameters
devindexUnused
Returns
Initialized device if successful, NULL otherwise

Definition at line 321 of file video.c.

322 {
324 
326  if (device == NULL) {
327  return NULL;
328  }
329 
330  device->driverdata = NULL;
331  device->VideoInit = videoInit;
332  device->VideoQuit = videoQuit;
333  device->CreateSDLWindow = createWindow;
334  device->CreateWindowFramebuffer = createWindowFramebuffer;
335  device->UpdateWindowFramebuffer = updateWindowFramebuffer;
336  device->SetWindowSize = setWindowSize;
337  device->ShowWindow = showWindow;
338  device->HideWindow = hideWindow;
339  device->PumpEvents = pumpEvents;
340  device->DestroyWindow = destroyWindow;
341 
342  device->GL_LoadLibrary = glLoadLibrary;
343  device->GL_GetProcAddress = glGetProcAddress;
344  device->GL_CreateContext = glCreateContext;
345  device->GL_SetSwapInterval = glSetSwapInterval;
346  device->GL_SwapWindow = glSwapWindow;
347  device->GL_MakeCurrent = glMakeCurrent;
348  device->GL_DeleteContext = glDeleteContext;
349  device->GL_UnloadLibrary = glUnloadLibrary;
350 
351  device->free = deleteDevice;
352  return device;
353 }

References createWindow(), createWindowFramebuffer(), deleteDevice(), destroyWindow(), device, glCreateContext(), glDeleteContext(), glGetProcAddress(), glLoadLibrary(), glMakeCurrent(), glSetSwapInterval(), glSwapWindow(), glUnloadLibrary(), hideWindow(), NULL, pumpEvents(), SDL_calloc, setWindowSize(), showWindow(), updateWindowFramebuffer(), videoInit(), and videoQuit().

◆ createWindow()

static int createWindow ( _THIS  ,
SDL_Window window 
)
static

Creates a new native Screen window and associates it with the given SDL window.

Parameters
_THIS
windowSDL window to initialize
Returns
0 if successful, -1 on error

Definition at line 71 of file video.c.

72 {
73  window_impl_t *impl;
74  int size[2];
75  int numbufs;
76  int format;
77  int usage;
78 
79  impl = SDL_calloc(1, sizeof(*impl));
80  if (impl == NULL) {
81  return -1;
82  }
83 
84  // Create a native window.
85  if (screen_create_window(&impl->window, context) < 0) {
86  goto fail;
87  }
88 
89  // Set the native window's size to match the SDL window.
90  size[0] = window->w;
91  size[1] = window->h;
92 
93  if (screen_set_window_property_iv(impl->window, SCREEN_PROPERTY_SIZE,
94  size) < 0) {
95  goto fail;
96  }
97 
98  if (screen_set_window_property_iv(impl->window, SCREEN_PROPERTY_SOURCE_SIZE,
99  size) < 0) {
100  goto fail;
101  }
102 
103  // Create window buffer(s).
104  if (window->flags & SDL_WINDOW_OPENGL) {
105  if (glGetConfig(&impl->conf, &format) < 0) {
106  goto fail;
107  }
108  numbufs = 2;
109 
110  usage = SCREEN_USAGE_OPENGL_ES2;
111  if (screen_set_window_property_iv(impl->window, SCREEN_PROPERTY_USAGE,
112  &usage) < 0) {
113  return -1;
114  }
115  } else {
116  format = SCREEN_FORMAT_RGBX8888;
117  numbufs = 1;
118  }
119 
120  // Set pixel format.
121  if (screen_set_window_property_iv(impl->window, SCREEN_PROPERTY_FORMAT,
122  &format) < 0) {
123  goto fail;
124  }
125 
126  // Create buffer(s).
127  if (screen_create_window_buffers(impl->window, numbufs) < 0) {
128  goto fail;
129  }
130 
131  window->driverdata = impl;
132  return 0;
133 
134 fail:
135  if (impl->window) {
136  screen_destroy_window(impl->window);
137  }
138 
139  SDL_free(impl);
140  return -1;
141 }

References window_impl_t::conf, context, glGetConfig(), NULL, SDL_calloc, SDL_free, SDL_WINDOW_OPENGL, and window_impl_t::window.

Referenced by createDevice().

◆ createWindowFramebuffer()

static int createWindowFramebuffer ( _THIS  ,
SDL_Window window,
Uint32 format,
void **  pixels,
int *  pitch 
)
static

Gets a pointer to the Screen buffer associated with the given window. Note that the buffer is actually created in createWindow().

Parameters
_THIS
windowSDL window to get the buffer for
[out]pixlesHolds a pointer to the window's buffer
[out]formatHolds the pixel format for the buffer
[out]pitchHolds the number of bytes per line
Returns
0 if successful, -1 on error

Definition at line 154 of file video.c.

156 {
157  window_impl_t *impl = (window_impl_t *)window->driverdata;
158  screen_buffer_t buffer;
159 
160  // Get a pointer to the buffer's memory.
161  if (screen_get_window_property_pv(impl->window, SCREEN_PROPERTY_BUFFERS,
162  (void **)&buffer) < 0) {
163  return -1;
164  }
165 
166  if (screen_get_buffer_property_pv(buffer, SCREEN_PROPERTY_POINTER,
167  pixels) < 0) {
168  return -1;
169  }
170 
171  // Set format and pitch.
172  if (screen_get_buffer_property_iv(buffer, SCREEN_PROPERTY_STRIDE,
173  pitch) < 0) {
174  return -1;
175  }
176 
178  return 0;
179 }

References if, SDL_PIXELFORMAT_RGB888, and window_impl_t::window.

Referenced by createDevice().

◆ deleteDevice()

static void deleteDevice ( SDL_VideoDevice device)
static

Frees the plugin object created by createDevice().

Parameters
devicePlugin object to free

Definition at line 310 of file video.c.

311 {
312  SDL_free(device);
313 }

References device, and SDL_free.

Referenced by createDevice().

◆ destroyWindow()

static void destroyWindow ( _THIS  ,
SDL_Window window 
)
static

Destroys the native window associated with the given SDL window.

Parameters
_THIS
windowSDL window that is being destroyed

Definition at line 295 of file video.c.

296 {
297  window_impl_t *impl = (window_impl_t *)window->driverdata;
298 
299  if (impl) {
300  screen_destroy_window(impl->window);
301  window->driverdata = NULL;
302  }
303 }

References if, NULL, and window_impl_t::window.

Referenced by createDevice().

◆ hideWindow()

static void hideWindow ( _THIS  ,
SDL_Window window 
)
static

Makes the native window associated with the given SDL window invisible.

Parameters
_THIS
windowSDL window to update

Definition at line 280 of file video.c.

281 {
282  window_impl_t *impl = (window_impl_t *)window->driverdata;
283  const int visible = 0;
284 
285  screen_set_window_property_iv(impl->window, SCREEN_PROPERTY_VISIBLE,
286  &visible);
287 }

References window_impl_t::window.

Referenced by createDevice().

◆ pumpEvents()

static void pumpEvents ( _THIS  )
static

Runs the main event loop.

Parameters
_THIS

Definition at line 211 of file video.c.

212 {
213  int type;
214 
215  for (;;) {
216  if (screen_get_event(context, event, 0) < 0) {
217  break;
218  }
219 
220  if (screen_get_event_property_iv(event, SCREEN_PROPERTY_TYPE, &type)
221  < 0) {
222  break;
223  }
224 
225  if (type == SCREEN_EVENT_NONE) {
226  break;
227  }
228 
229  switch (type) {
230  case SCREEN_EVENT_KEYBOARD:
232  break;
233 
234  default:
235  break;
236  }
237  }
238 }

References context, and handleKeyboardEvent().

Referenced by createDevice().

◆ setWindowSize()

static void setWindowSize ( _THIS  ,
SDL_Window window 
)
static

Updates the size of the native window using the geometry of the SDL window.

Parameters
_THIS
windowSDL window to update

Definition at line 246 of file video.c.

247 {
248  window_impl_t *impl = (window_impl_t *)window->driverdata;
249  int size[2];
250 
251  size[0] = window->w;
252  size[1] = window->h;
253 
254  screen_set_window_property_iv(impl->window, SCREEN_PROPERTY_SIZE, size);
255  screen_set_window_property_iv(impl->window, SCREEN_PROPERTY_SOURCE_SIZE,
256  size);
257 }

References window_impl_t::window.

Referenced by createDevice().

◆ showWindow()

static void showWindow ( _THIS  ,
SDL_Window window 
)
static

Makes the native window associated with the given SDL window visible.

Parameters
_THIS
windowSDL window to update

Definition at line 265 of file video.c.

266 {
267  window_impl_t *impl = (window_impl_t *)window->driverdata;
268  const int visible = 1;
269 
270  screen_set_window_property_iv(impl->window, SCREEN_PROPERTY_VISIBLE,
271  &visible);
272 }

References window_impl_t::window.

Referenced by createDevice().

◆ updateWindowFramebuffer()

static int updateWindowFramebuffer ( _THIS  ,
SDL_Window window,
const SDL_Rect rects,
int  numrects 
)
static

Informs the window manager that the window needs to be updated.

Parameters
_THIS
windowThe window to update
rectsAn array of reectangular areas to update
numrectsRect array length
Returns
0 if successful, -1 on error

Definition at line 190 of file video.c.

192 {
193  window_impl_t *impl = (window_impl_t *)window->driverdata;
194  screen_buffer_t buffer;
195 
196  if (screen_get_window_property_pv(impl->window, SCREEN_PROPERTY_BUFFERS,
197  (void **)&buffer) < 0) {
198  return -1;
199  }
200 
201  screen_post_window(impl->window, buffer, numrects, (int *)rects, 0);
202  screen_flush_context(context, 0);
203  return 0;
204 }

References context, if, and window_impl_t::window.

Referenced by createDevice().

◆ videoInit()

static int videoInit ( _THIS  )
static

Initializes the QNX video plugin. Creates the Screen context and event handles used for all window operations by the plugin.

Parameters
_THIS
Returns
0 if successful, -1 on error

Definition at line 36 of file video.c.

37 {
38  SDL_VideoDisplay display;
39 
40  if (screen_create_context(&context, 0) < 0) {
41  return -1;
42  }
43 
44  if (screen_create_event(&event) < 0) {
45  return -1;
46  }
47 
48  SDL_zero(display);
49 
50  if (SDL_AddVideoDisplay(&display) < 0) {
51  return -1;
52  }
53 
54  _this->num_displays = 1;
55  return 0;
56 }

References _this, context, SDL_VideoDevice::num_displays, SDL_AddVideoDisplay(), and SDL_zero.

Referenced by createDevice().

◆ videoQuit()

static void videoQuit ( _THIS  )
static

Definition at line 59 of file video.c.

60 {
61 }

Referenced by createDevice().

Variable Documentation

◆ context

◆ event

screen_event_t event
static

Definition at line 26 of file video.c.

◆ QNX_bootstrap

VideoBootStrap QNX_bootstrap
Initial value:
= {
"qnx", "QNX Screen",
}

Definition at line 361 of file video.c.

SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:418
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1572
glLoadLibrary
int glLoadLibrary(_THIS, const char *name)
Definition: gl.c:136
showWindow
static void showWindow(_THIS, SDL_Window *window)
Definition: video.c:265
if
set set set set set set set macro pixldst1 abits if abits op else op endif endm macro pixldst2 abits if abits op else op endif endm macro pixldst4 abits if abits op else op endif endm macro pixldst0 abits op endm macro pixldst3 mem_operand op endm macro pixldst30 mem_operand op endm macro pixldst abits if abits elseif abits elseif abits elseif abits elseif abits pixldst0 abits else pixldst0 abits pixldst0 abits pixldst0 abits pixldst0 abits endif elseif abits else pixldst0 abits pixldst0 abits endif elseif abits else error unsupported bpp *numpix else pixst endif endm macro pixld1_s mem_operand if asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl elseif asr adds SRC_WIDTH_FIXED bpl add asl mov asr adds SRC_WIDTH_FIXED bpl add asl else error unsupported endif endm macro pixld2_s mem_operand if mov asr add asl add asl mov asr sub UNIT_X add asl mov asr add asl add asl mov asr add UNIT_X add asl else pixld1_s mem_operand pixld1_s mem_operand endif endm macro pixld0_s mem_operand if asr adds SRC_WIDTH_FIXED bpl add asl elseif asr adds SRC_WIDTH_FIXED bpl add asl endif endm macro pixld_s_internal mem_operand if mem_operand pixld2_s mem_operand pixdeinterleave basereg elseif mem_operand elseif mem_operand elseif mem_operand elseif mem_operand pixld0_s mem_operand else pixld0_s mem_operand pixld0_s mem_operand pixld0_s mem_operand pixld0_s mem_operand endif elseif mem_operand else pixld0_s mem_operand pixld0_s mem_operand endif elseif mem_operand else error unsupported mem_operand if bpp mem_operand endif endm macro vuzp8 reg2 vuzp d d &reg2 endm macro vzip8 reg2 vzip d d &reg2 endm macro pixdeinterleave basereg basereg basereg basereg basereg endif endm macro pixinterleave basereg basereg basereg basereg basereg endif endm macro PF boost_increment endif if endif PF tst PF addne PF subne PF cmp ORIG_W if endif if endif if endif PF subge ORIG_W PF subges if endif if endif if endif endif endm macro cache_preload_simple endif if dst_r_bpp pld[DST_R, #(PREFETCH_DISTANCE_SIMPLE *dst_r_bpp/8)] endif if mask_bpp pld if[MASK, #(PREFETCH_DISTANCE_SIMPLE *mask_bpp/8)] endif endif endm macro fetch_mask_pixblock pixld mask_basereg pixblock_size MASK endm macro ensure_destination_ptr_alignment process_pixblock_tail_head if beq irp skip1(dst_w_bpp<=(lowbit *8)) &&((lowbit *8)<(pixblock_size *dst_w_bpp)) .if lowbit< 16 tst DST_R
Definition: pixman-arm-neon-asm.h:469
SDL_PIXELFORMAT_RGB888
@ SDL_PIXELFORMAT_RGB888
Definition: SDL_pixels.h:239
NULL
#define NULL
Definition: begin_code.h:167
window_impl_t::window
screen_window_t window
Definition: sdl_qnx.h:31
glSetSwapInterval
int glSetSwapInterval(_THIS, int interval)
Definition: gl.c:218
window_impl_t
Definition: sdl_qnx.h:29
SDL_WINDOW_OPENGL
@ SDL_WINDOW_OPENGL
Definition: SDL_video.h:100
setWindowSize
static void setWindowSize(_THIS, SDL_Window *window)
Definition: video.c:246
pumpEvents
static void pumpEvents(_THIS)
Definition: video.c:211
handleKeyboardEvent
void handleKeyboardEvent(screen_event_t event)
Definition: keyboard.c:99
glGetConfig
int glGetConfig(EGLConfig *pconf, int *pformat)
Definition: gl.c:68
glMakeCurrent
int glMakeCurrent(_THIS, SDL_Window *window, SDL_GLContext context)
Definition: gl.c:249
createDevice
static SDL_VideoDevice * createDevice(int devindex)
Definition: video.c:321
event
struct _cl_event * event
Definition: SDL_opengl_glext.h:2652
buffer
GLuint buffer
Definition: SDL_opengl_glext.h:536
context
static screen_context_t context
Definition: video.c:25
usage
GLsizeiptr const void GLenum usage
Definition: SDL_opengl_glext.h:540
videoQuit
static void videoQuit(_THIS)
Definition: video.c:59
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
SDL_VideoDevice::num_displays
int num_displays
Definition: SDL_sysvideo.h:323
window
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
createWindowFramebuffer
static int createWindowFramebuffer(_THIS, SDL_Window *window, Uint32 *format, void **pixels, int *pitch)
Definition: video.c:154
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
window_impl_t::conf
EGLConfig conf
Definition: sdl_qnx.h:33
glDeleteContext
void glDeleteContext(_THIS, SDL_GLContext context)
Definition: gl.c:272
updateWindowFramebuffer
static int updateWindowFramebuffer(_THIS, SDL_Window *window, const SDL_Rect *rects, int numrects)
Definition: video.c:190
SDL_AddVideoDisplay
int SDL_AddVideoDisplay(const SDL_VideoDisplay *display)
Definition: SDL_video.c:606
glCreateContext
SDL_GLContext glCreateContext(_THIS, SDL_Window *window)
Definition: gl.c:171
pixels
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1572
destroyWindow
static void destroyWindow(_THIS, SDL_Window *window)
Definition: video.c:295
SDL_VideoDevice
Definition: SDL_sysvideo.h:149
size
GLsizeiptr size
Definition: SDL_opengl_glext.h:540
glGetProcAddress
void * glGetProcAddress(_THIS, const char *proc)
Definition: gl.c:158
available
static int available()
Definition: video.c:356
glUnloadLibrary
void glUnloadLibrary(_THIS)
Definition: gl.c:282
SDL_calloc
#define SDL_calloc
Definition: SDL_dynapi_overrides.h:375
createWindow
static int createWindow(_THIS, SDL_Window *window)
Definition: video.c:71
glSwapWindow
int glSwapWindow(_THIS, SDL_Window *window)
Definition: gl.c:234
SDL_VideoDisplay
Definition: SDL_sysvideo.h:126
videoInit
static int videoInit(_THIS)
Definition: video.c:36
hideWindow
static void hideWindow(_THIS, SDL_Window *window)
Definition: video.c:280
deleteDevice
static void deleteDevice(SDL_VideoDevice *device)
Definition: video.c:310
device
static SDL_AudioDeviceID device
Definition: loopwave.c:37
rects
EGLSurface EGLint * rects
Definition: eglext.h:282
type
GLuint GLuint GLsizei GLenum type
Definition: SDL_opengl.h:1571