summaryrefslogtreecommitdiffstats
path: root/libvo/vo_gl.c
blob: cec4c4f2f79913233dfd51c98da812f92964c7c8 (plain)
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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
#define DISP

// this can be 3 or 4  (regarding 24bpp and 32bpp)
#define BYTES_PP 3

#define TEXTUREFORMAT_32BPP

/* 
 * video_out_gl.c, X11/OpenGL interface
 * based on video_out_x11 by Aaron Holtzman,
 * and WS opengl window manager by Pontscho/Fresh!
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"


LIBVO_EXTERN(gl)

#include <X11/Xlib.h>
#include <X11/Xutil.h>
//#include <X11/keysym.h>
#include <GL/glx.h>
#include <errno.h>
#include "yuv2rgb.h"

#include <GL/gl.h>

#include "x11_common.h"

static vo_info_t vo_info = 
{
	"X11 (OpenGL)",
	"gl",
	"Arpad Gereoffy <arpi@esp-team.scene.hu>",
	""
};

/* private prototypes */
static void Display_Image (unsigned char *ImageData);

/* local data */
static unsigned char *ImageData=NULL;

/* X11 related variables */
static Display *mydisplay;
static Window mywindow;
//static GC mygc;
//static XImage *myximage;
//static int depth,mode;
static XWindowAttributes attribs;
static int X_already_started = 0;

static int texture_id=1;

static GLXContext wsGLXContext;
//XVisualInfo        * wsVisualInfo;
int                  wsGLXAttrib[] = { GLX_RGBA,
                                       GLX_RED_SIZE,1,
                                       GLX_GREEN_SIZE,1,
                                       GLX_BLUE_SIZE,1,
//                                       GLX_DEPTH_SIZE,16,
                                       GLX_DOUBLEBUFFER,
                                       None };


static uint32_t image_width;
static uint32_t image_height;
static uint32_t image_format;
static uint32_t image_bpp;
static uint32_t image_bytes;

static uint32_t texture_width;
static uint32_t texture_height;

static void resize(int x,int y){
  printf("Resize: %dx%d\n",x,y);
  glViewport( 0, 0, x, y );

  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  glOrtho(0, image_width, image_height, 0, -1,1);

  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
}

/* connect to server, create and map window,
 * allocate colors and (shared) memory
 */
static uint32_t 
init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format)
{
	int screen;
	unsigned int fg, bg;
	char *hello = (title == NULL) ? "OpenGL rulez" : title;
	char *name = ":0.0";
	XSizeHints hint;
	XVisualInfo *vinfo;
	XEvent xev;

	XGCValues xgcv;
	XSetWindowAttributes xswa;
	unsigned long xswamask;

	image_height = height;
	image_width = width;
	image_format = format;
  
	if (X_already_started) return -1;

	if(getenv("DISPLAY"))	name = getenv("DISPLAY");

	mydisplay = XOpenDisplay(name);

	if (mydisplay == NULL)
	{
		printf("Can not open display\n");
		return -1;
	}

	screen = DefaultScreen(mydisplay);

	hint.x = 0;
	hint.y = 0;
	hint.width = d_width;
	hint.height = d_height;
	hint.flags = PPosition | PSize;

	/* Get some colors */

	bg = WhitePixel(mydisplay, screen);
	fg = BlackPixel(mydisplay, screen);

	/* Make the window */

	XGetWindowAttributes(mydisplay, DefaultRootWindow(mydisplay), &attribs);

#if 0
	/*
	 *
	 * depth in X11 terminology land is the number of bits used to
	 * actually represent the colour.
   	 *
	 * bpp in X11 land means how many bits in the frame buffer per
	 * pixel. 
	 *
	 * ex. 15 bit color is 15 bit depth and 16 bpp. Also 24 bit
	 *     color is 24 bit depth, but can be 24 bpp or 32 bpp.
	 */

	depth = attribs.depth;

	if (depth != 15 && depth != 16 && depth != 24 && depth != 32) 
	{
		/* The root window may be 8bit but there might still be
		* visuals with other bit depths. For example this is the 
		* case on Sun/Solaris machines.
		*/
		depth = 24;
	}
	//BEGIN HACK
	//mywindow = XCreateSimpleWindow(mydisplay, DefaultRootWindow(mydisplay),
	//hint.x, hint.y, hint.width, hint.height, 4, fg, bg);
	//
#endif

//	XMatchVisualInfo(mydisplay, screen, depth, TrueColor, &vinfo);
  vinfo=glXChooseVisual( mydisplay,screen,wsGLXAttrib );

	xswa.background_pixel = 0;
	xswa.border_pixel     = 1;
//	xswa.colormap         = XCreateColormap(mydisplay, RootWindow(mydisplay,screen), vinfo.visual, AllocNone);
	xswa.colormap         = XCreateColormap(mydisplay, RootWindow(mydisplay,screen), vinfo->visual, AllocNone);
	xswamask = CWBackPixel | CWBorderPixel | CWColormap;
//  xswamask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWCursor | CWOverrideRedirect | CWSaveUnder | CWX | CWY | CWWidth | CWHeight;

  mywindow = XCreateWindow(mydisplay, RootWindow(mydisplay,screen),
    hint.x, hint.y, hint.width, hint.height, 4, vinfo->depth,CopyFromParent,vinfo->visual,xswamask,&xswa);
  vo_hidecursor(mydisplay,mywindow);

  wsGLXContext=glXCreateContext( mydisplay,vinfo,NULL,True );
//  XStoreName( wsDisplay,wsMyWin,wsSysName );

//  printf("GLXcontext ok\n");

  if ( fullscreen ) vo_x11_decoration( mydisplay,mywindow,0 );

	XSelectInput(mydisplay, mywindow, StructureNotifyMask);

	/* Tell other applications about this window */

	XSetStandardProperties(mydisplay, mywindow, hello, hello, None, NULL, 0, &hint);

	/* Map window. */

	XMapWindow(mydisplay, mywindow);

	/* Wait for map. */
	do 
	{
		XNextEvent(mydisplay, &xev);
	}
	while (xev.type != MapNotify || xev.xmap.event != mywindow);

	XSelectInput(mydisplay, mywindow, NoEventMask);

  glXMakeCurrent( mydisplay,mywindow,wsGLXContext );

	XFlush(mydisplay);
	XSync(mydisplay, False);

//	mygc = XCreateGC(mydisplay, mywindow, 0L, &xgcv);

//		myximage = XGetImage(mydisplay, mywindow, 0, 0,
//		width, image_height, AllPlanes, ZPixmap);
//		ImageData = myximage->data;
//	bpp = myximage->bits_per_pixel;

	//XSelectInput(mydisplay, mywindow, StructureNotifyMask); // !!!!
        XSelectInput(mydisplay, mywindow, StructureNotifyMask | KeyPressMask );

//  printf("Window setup ok\n");

#if 0
	// If we have blue in the lowest bit then obviously RGB 
	mode = ((myximage->blue_mask & 0x01) != 0) ? MODE_RGB : MODE_BGR;
#ifdef WORDS_BIGENDIAN 
	if (myximage->byte_order != MSBFirst)
#else
	if (myximage->byte_order != LSBFirst) 
#endif
	{
		fprintf( stderr, "No support fon non-native XImage byte order!\n" );
		return -1;
	}

  printf("DEPTH=%d  BPP=%d\n",depth,bpp);
#endif

	/* 
	 * If depth is 24 then it may either be a 3 or 4 byte per pixel
	 * format. We can't use bpp because then we would lose the 
	 * distinction between 15/16bit depth (2 byte formate assumed).
	 *
	 * FIXME - change yuv2rgb_init to take both depth and bpp
	 * parameters
	 */

  texture_width=32;
  while(texture_width<image_width) texture_width*=2;
  while(texture_width<image_height) texture_width*=2;
  texture_height=texture_width;

  if(format==IMGFMT_YV12){
    yuv2rgb_init(8*BYTES_PP, MODE_BGR);
    printf("YUV init OK!\n");
    image_bpp=8*BYTES_PP;
    image_bytes=BYTES_PP;
  } else {
    image_bpp=format&0xFF;
    image_bytes=(image_bpp+7)/8;
  }

  ImageData=malloc(texture_width*texture_height*image_bytes);
  memset(ImageData,128,texture_width*texture_height*image_bytes);

  glDisable(GL_BLEND); 
  glDisable(GL_DEPTH_TEST);
  glDepthMask(GL_FALSE);
  glDisable(GL_CULL_FACE);

  glEnable(GL_TEXTURE_2D);

  printf("Creating %dx%d texture...\n",texture_width,texture_height);

#if 1
//  glBindTexture(GL_TEXTURE_2D, texture_id);
  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER, GL_LINEAR);
#ifdef TEXTUREFORMAT_32BPP
  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, texture_width, texture_height, 0,
#else
  glTexImage2D(GL_TEXTURE_2D, 0, BYTES_PP, texture_width, texture_height, 0,
#endif
       (image_bytes==4)?GL_RGBA:GL_BGR, GL_UNSIGNED_BYTE, ImageData);
#endif

  resize(d_width,d_height);

  glClearColor( 1.0f,0.0f,1.0f,0.0f );
  glClear( GL_COLOR_BUFFER_BIT );

//  printf("OpenGL setup OK!\n");

	X_already_started++;
	return 0;
}

static const vo_info_t*
get_info(void)
{
	return &vo_info;
}

static void 
Terminate_Display_Process(void) 
{
	getchar();	/* wait for enter to remove window */
	XDestroyWindow(mydisplay, mywindow);
	XCloseDisplay(mydisplay);
	X_already_started = 0;
}


static void check_events(void)
{
    int e=vo_x11_check_events(mydisplay);
    if(e&VO_EVENT_RESIZE) resize(vo_dwidth,vo_dheight);
}


static void
flip_page(void)
{

    check_events();

//  glEnable(GL_TEXTURE_2D);
//  glBindTexture(GL_TEXTURE_2D, texture_id);

  glColor3f(1,1,1);
  glBegin(GL_QUADS);
    glTexCoord2f(0,0);glVertex2i(0,0);
    glTexCoord2f(0,1);glVertex2i(0,texture_height);
    glTexCoord2f(1,1);glVertex2i(texture_width,texture_height);
    glTexCoord2f(1,0);glVertex2i(texture_width,0);
  glEnd();

//  glFlush();
  glFinish();
  glXSwapBuffers( mydisplay,mywindow );
  
}

//static inline uint32_t draw_slice_x11(uint8_t *src[], uint32_t slice_num)
static uint32_t draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
{
    int i;
    int dstride=w*BYTES_PP;
    
//    dstride=(dstride+15)&(~15);

	yuv2rgb(ImageData, src[0], src[1], src[2], 
			w,h, dstride, stride[0],stride[1]);

//	emms ();

    for(i=0;i<h;i++){
      glTexSubImage2D( GL_TEXTURE_2D,  // target
		       0,              // level
		       x,              // x offset
		       y+i,            // y offset
		       w,              // width
		       1,              // height
		       (BYTES_PP==4)?GL_RGBA:GL_RGB,        // format
		       GL_UNSIGNED_BYTE, // type
		       ImageData+i*dstride );        // *pixels
    }

	return 0;
}

static inline uint32_t 
draw_frame_x11_yv12(uint8_t *src[])
{
int i;
//  printf("Converting YUV->RGB...\n");
	yuv2rgb(ImageData, src[0], src[1], src[2],
		image_width, image_height, 
		image_width*BYTES_PP, image_width, image_width/2 );
//  printf("Ready!\n");

//		emms ();

    for(i=0;i<image_height;i++){
      glTexSubImage2D( GL_TEXTURE_2D,  // target
		       0,              // level
		       0,              // x offset
		       i,              // y offset
		       image_width,    // width
		       1,              // height
		       (BYTES_PP==4)?GL_RGBA:GL_RGB,        // format
		       GL_UNSIGNED_BYTE, // type
		       ImageData+i*BYTES_PP*image_width );        // *pixels
    }

//	Display_Image(ImageData);
	return 0; 
}


static inline uint32_t 
draw_frame_x11_bgr(uint8_t *src[])
{
int i;
uint8_t *s=src[0];
uint8_t *de=&ImageData[3*image_width];

    for(i=0;i<image_height;i++){
      int j;
      uint8_t *d=ImageData;
      while(d<de){
        d[0]=s[2];
        d[1]=s[1];
        d[2]=s[0];
        s+=3;d+=3;
      }
      glTexSubImage2D( GL_TEXTURE_2D,  // target
		       0,              // level
		       0,              // x offset
//		       image_height-1-i,  // y offset
		       i,  // y offset
		       image_width,    // width
		       1,              // height
		       (image_bytes==4)?GL_RGBA:GL_RGB,        // format
		       GL_UNSIGNED_BYTE, // type
		       ImageData);        // *pixels
    }

//	Display_Image(ImageData);
	return 0; 
}

static inline uint32_t 
draw_frame_x11_rgb(uint8_t *src[])
{
int i;
uint8_t *ImageData=src[0];

    for(i=0;i<image_height;i++){
      glTexSubImage2D( GL_TEXTURE_2D,  // target
		       0,              // level
		       0,              // x offset
//		       image_height-1-i,  // y offset
		       i,  // y offset
		       image_width,    // width
		       1,              // height
		       (image_bytes==4)?GL_RGBA:GL_RGB,        // format
		       GL_UNSIGNED_BYTE, // type
		       ImageData+i*image_bytes*image_width );        // *pixels
    }

//	Display_Image(ImageData);
	return 0; 
}


static uint32_t
draw_frame(uint8_t *src[])
{
    if(image_format==IMGFMT_YV12)
	return draw_frame_x11_yv12(src);
    else 
    if((image_format&IMGFMT_RGB_MASK)==IMGFMT_RGB)
	return draw_frame_x11_rgb(src);
    else
	return draw_frame_x11_bgr(src);
}

static uint32_t
query_format(uint32_t format)
{
    switch(format){
    case IMGFMT_YV12:
    case IMGFMT_RGB|24:
    case IMGFMT_BGR|24:
        return 1;
    }
    return 0;
}


static void
uninit(void)
{
}