aboutsummaryrefslogtreecommitdiffstats
path: root/src/modules/evas/engines/wayland_shm/evas_engine.c
blob: 61044c13c279df219bd69a31dea11638203e53dd (plain) (blame)
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
#include "evas_common_private.h"
#include "evas_private.h"
#ifdef EVAS_CSERVE2
# include "evas_cs2_private.h"
#endif

#include "evas_engine.h"
#include "../software_generic/evas_native_common.h"

#ifdef HAVE_DLSYM
# include <dlfcn.h>
#endif

/* logging domain variable */
int _evas_engine_way_shm_log_dom = -1;

/* evas function tables - filled in later (func and parent func) */
static Evas_Func func, pfunc;

Evas_Native_Tbm_Surface_Image_Set_Call  glsym__evas_native_tbm_surface_image_set = NULL;
Evas_Native_Tbm_Surface_Stride_Get_Call  glsym__evas_native_tbm_surface_stride_get = NULL;

/* engine structure data */
typedef struct _Render_Engine Render_Engine;
struct _Render_Engine
{
   Render_Engine_Software_Generic generic;
};

/* LOCAL FUNCTIONS */
static Render_Engine *
_render_engine_swapbuf_setup(int w, int h, Evas_Engine_Info_Wayland *einfo)
{
   Render_Engine *re;
   Outbuf *ob;
   Render_Engine_Merge_Mode merge_mode = MERGE_SMART;
   const char *s;

   LOGFN(__FILE__, __LINE__, __FUNCTION__);

   /* try to allocate space for new render engine */
   if (!(re = calloc(1, sizeof(Render_Engine)))) return NULL;

   ob = _evas_outbuf_setup(w, h, einfo);
   if (!ob) goto err;

   if (!evas_render_engine_software_generic_init(&re->generic, ob, 
                                                 _evas_outbuf_swap_mode_get,
                                                 _evas_outbuf_rotation_get,
                                                 NULL,
                                                 NULL,
                                                 NULL,
                                                 _evas_outbuf_update_region_new,
                                                 _evas_outbuf_update_region_push,
                                                 _evas_outbuf_update_region_free,
                                                 _evas_outbuf_idle_flush,
                                                 _evas_outbuf_flush,
                                                 _evas_outbuf_redraws_clear,
                                                 _evas_outbuf_free,
                                                 w, h))
     goto err;

   s = getenv("EVAS_WAYLAND_PARTIAL_MERGE");
   if (s)
     {
        if ((!strcmp(s, "bounding")) || (!strcmp(s, "b")))
          merge_mode = MERGE_BOUNDING;
        else if ((!strcmp(s, "full")) || (!strcmp(s, "f")))
          merge_mode = MERGE_FULL;
        else if ((!strcmp(s, "smart")) || (!strcmp(s, "s")))
          merge_mode = MERGE_SMART;
     }

   evas_render_engine_software_generic_merge_mode_set(&re->generic, merge_mode);

   re->generic.ob->info = einfo;

   /* return allocated render engine */
   return re;

err:
   if (ob) _evas_outbuf_free(ob);
   free(re);
   return NULL;
}

static void
_symbols(void)
{
   static int done = 0;

   if (done) return;

#define LINK2GENERIC(sym) \
   glsym_##sym = dlsym(RTLD_DEFAULT, #sym);

   // Get function pointer to native_common that is now provided through the link of SW_Generic.
   LINK2GENERIC(_evas_native_tbm_surface_image_set);
   LINK2GENERIC(_evas_native_tbm_surface_stride_get);

   done = 1;
}

/* ENGINE API FUNCTIONS WE PROVIDE */
static void *
eng_info(void)
{
   Evas_Engine_Info_Wayland *einfo;

   LOGFN(__FILE__, __LINE__, __FUNCTION__);

   /* try to allocate space for new engine info */
   if (!(einfo = calloc(1, sizeof(Evas_Engine_Info_Wayland))))
     return NULL;

   /* fill in engine info */
   einfo->magic.magic = rand();
   einfo->render_mode = EVAS_RENDER_MODE_BLOCKING;

   /* return allocated engine info */
   return einfo;
}

static void
eng_info_free(void *info)
{
   Evas_Engine_Info_Wayland *einfo;

   LOGFN(__FILE__, __LINE__, __FUNCTION__);

   /* try to free previously allocated engine info */
   if ((einfo = (Evas_Engine_Info_Wayland *)info))
     free(einfo);
}

static void *
eng_setup(void *engine EINA_UNUSED, void *info, unsigned int w, unsigned int h)
{
   Evas_Engine_Info_Wayland *einfo = info;

   LOGFN(__FILE__, __LINE__, __FUNCTION__);

   return _render_engine_swapbuf_setup(w, h, einfo);
}

static void
eng_output_resize(void *engine EINA_UNUSED, void *data, int w, int h)
{
   Render_Engine *re;
   Evas_Engine_Info_Wayland *einfo;
   Eina_Bool resize = EINA_FALSE;

   LOGFN(__FILE__, __LINE__, __FUNCTION__);

   if (!(re = (Render_Engine *)data)) return;
   if (!(einfo = re->generic.ob->info)) return;

   if (einfo->info.edges) resize = EINA_TRUE;

   _evas_outbuf_reconfigure(re->generic.ob, w, h,
                            einfo->info.rotation, einfo->info.depth,
                            einfo->info.destination_alpha, resize,
                            einfo->info.hidden);

   evas_common_tilebuf_free(re->generic.tb);
   if ((re->generic.tb = evas_common_tilebuf_new(w, h)))
     evas_common_tilebuf_set_tile_size(re->generic.tb, TILESIZE, TILESIZE);

   re->generic.w = w;
   re->generic.h = h;
}

static int
eng_update(void *engine, void *data, void *info, unsigned int w, unsigned int h)
{
   Evas_Engine_Info_Wayland *einfo = info;
   Render_Engine *re = data;

   _evas_outbuf_surface_set(re->generic.ob,
                            einfo->info.wl_shm,
                            einfo->info.wl_dmabuf);

   eng_output_resize(engine, data, w, h);

   evas_render_engine_software_generic_update(&re->generic, re->generic.ob,
                                              w, h);

   return 1;
}

static void
eng_output_free(void *engine EINA_UNUSED, void *data)
{
   Render_Engine *re;

   if ((re = (Render_Engine *)data))
     {
        evas_render_engine_software_generic_clean(&re->generic);
        free(re);
     }
}

static int
eng_image_native_init(void *engine EINA_UNUSED, Evas_Native_Surface_Type type)
{
   switch (type)
     {
      case EVAS_NATIVE_SURFACE_TBM:
        return _evas_native_tbm_init();
      case EVAS_NATIVE_SURFACE_EVASGL:
        return 1;
      default:
        ERR("Native surface type %d not supported!", type);
        return 0;
     }
}

static void
eng_image_native_shutdown(void *engine EINA_UNUSED, Evas_Native_Surface_Type type)
{
   switch (type)
     {
      case EVAS_NATIVE_SURFACE_TBM:
        _evas_native_tbm_shutdown();
        return;
      default:
        ERR("Native surface type %d not supported!", type);
        return;
     }
}

static void
_native_evasgl_free(void *image)
{
   RGBA_Image *im = image;
   Native *n = im->native.data;

   im->native.data        = NULL;
   im->native.func.bind   = NULL;
   im->native.func.unbind = NULL;
   im->native.func.free   = NULL;
   //im->image.data         = NULL;
   free(n);
}

static void *
eng_image_native_set(void *engine EINA_UNUSED, void *image, void *native)
{
   Evas_Native_Surface *ns = native;
   Image_Entry *ie = image;
   RGBA_Image *im = image, *im2;
   int stride;

   if (!im || !ns) return im;

   if (ns->type == EVAS_NATIVE_SURFACE_TBM)
     {
        if (im->native.data)
          {
             //image have native surface already
             Evas_Native_Surface *ens = im->native.data;

             if ((ens->type == ns->type) &&
                 (ens->data.tbm.buffer == ns->data.tbm.buffer))
                return im;
          }
      }

   if (ns->type == EVAS_NATIVE_SURFACE_EVASGL)
     {
        im2 = (RGBA_Image *) evas_cache_image_data(evas_common_image_cache_get(),
                                                   ie->w, ie->h, ns->data.evasgl.surface, 1,
                                                   EVAS_COLORSPACE_ARGB8888);
     }
   else if (ns->type == EVAS_NATIVE_SURFACE_TBM)
     {
        stride = glsym__evas_native_tbm_surface_stride_get(NULL, ns);
        im2 = (RGBA_Image *)evas_cache_image_copied_data(evas_common_image_cache_get(),
                                                         stride, ie->h, NULL, ie->flags.alpha,
                                                         EVAS_COLORSPACE_ARGB8888);
     }
   else
     im2 = (RGBA_Image *)evas_cache_image_data(evas_common_image_cache_get(),
                                               ie->w, ie->h,
                                               NULL, 1,
                                               EVAS_COLORSPACE_ARGB8888);

   if (im->native.data)
      {
         if (im->native.func.free)
            im->native.func.free(im);
      }

#ifdef EVAS_CSERVE2
   if (evas_cserve2_use_get() && evas_cache2_image_cached(ie))
     evas_cache2_image_close(ie);
   else
#endif
   evas_cache_image_drop(ie);
   im = im2;

   if (ns->type == EVAS_NATIVE_SURFACE_TBM)
     {
        return glsym__evas_native_tbm_surface_image_set(NULL, im, ns);
     }
   else if (ns->type == EVAS_NATIVE_SURFACE_EVASGL)
     {
        /* Native contains Evas_Native_Surface. What a mess. */
        Native *n = calloc(1, sizeof(Native));
        if (n)
          {
             n->ns_data.evasgl.surface = ns->data.evasgl.surface;
             n->ns.type = EVAS_NATIVE_SURFACE_EVASGL;
             n->ns.version = EVAS_NATIVE_SURFACE_VERSION;
             n->ns.data.evasgl.surface = ns->data.evasgl.surface;
             im->native.data = n;
             im->native.func.free = _native_evasgl_free;
             im->native.func.bind = NULL;
             im->native.func.unbind = NULL;
          }
     }

   return im;
}

static void *
eng_image_native_get(void *engine EINA_UNUSED, void *image)
{
   RGBA_Image *im = image;
   Native *n;
   if (!im) return NULL;
   n = im->native.data;
   if (!n) return NULL;
   return &(n->ns);
}

/* EVAS MODULE FUNCTIONS */
static int 
module_open(Evas_Module *em)
{
   LOGFN(__FILE__, __LINE__, __FUNCTION__);

   /* check for valid evas module */
   if (!em) return 0;

   /* try to get functions from whatever engine module we inherit from */
   if (!_evas_module_engine_inherit(&pfunc, "software_generic")) return 0;

   /* try to create our logging domain */
   _evas_engine_way_shm_log_dom = 
     eina_log_domain_register("evas-wayland_shm", EVAS_DEFAULT_LOG_COLOR);
   if (_evas_engine_way_shm_log_dom < 0)
     {
        EINA_LOG_ERR("Cannot create a module logging domain");
        return 0;
     }

   /* copy parent functions */
   func = pfunc;

   /* override engine specific functions */
#define ORD(f) EVAS_API_OVERRIDE(f, &func, eng_)
   ORD(info);
   ORD(info_free);
   ORD(setup);
   ORD(update);
   ORD(output_free);
   ORD(output_resize);
   ORD(image_native_set);
   ORD(image_native_get);
   ORD(image_native_init);
   ORD(image_native_shutdown);

   _symbols();
   /* advertise our own engine functions */
   em->functions = (void *)(&func);

   return 1;
}

static void 
module_close(Evas_Module *em EINA_UNUSED)
{
   LOGFN(__FILE__, __LINE__, __FUNCTION__);

   /* unregister logging domain */
   if (_evas_engine_way_shm_log_dom >= 0)
     {
        eina_log_domain_unregister(_evas_engine_way_shm_log_dom);
        _evas_engine_way_shm_log_dom = -1;
     }
}

static Evas_Module_Api evas_modapi = 
{
   EVAS_MODULE_API_VERSION, "wayland_shm", "none", {module_open, module_close}
};

EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_ENGINE, engine, wayland_shm);

#ifndef EVAS_STATIC_BUILD_WAYLAND_SHM
EVAS_EINA_MODULE_DEFINE(engine, wayland_shm);
#endif