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efl/src/modules/evas/engines/wayland_shm/evas_engine.c

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#include "evas_common_private.h"
#include "evas_private.h"
#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;
static Evas_Native_Tbm_Surface_Image_Set_Call glsym__evas_native_tbm_surface_image_set = NULL;
static 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_Output_Software_Generic generic;
};
static void *
eng_output_setup(void *engine, void *info, unsigned int w, unsigned int h)
{
Evas_Engine_Info_Wayland *einfo = info;
Render_Engine *re;
Outbuf *ob;
LOGFN;
/* 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(engine, &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,
NULL,
_evas_outbuf_idle_flush,
_evas_outbuf_flush,
_evas_outbuf_redraws_clear,
_evas_outbuf_free,
w, h))
goto err;
evas_render_engine_software_generic_merge_mode_set(&re->generic);
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_output_info_setup(void *info)
{
Evas_Engine_Info_Wayland *einfo = info;
LOGFN;
einfo->render_mode = EVAS_RENDER_MODE_BLOCKING;
}
static void
eng_output_resize(void *engine EINA_UNUSED, void *data, int w, int h)
{
Render_Engine *re;
Evas_Engine_Info_Wayland *einfo;
LOGFN;
if (!(re = (Render_Engine *)data)) return;
if (!(einfo = re->generic.ob->info)) return;
_evas_outbuf_reconfigure(re->generic.ob, w, h,
einfo->info.rotation, einfo->info.depth,
einfo->info.destination_alpha, 0);
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_output_update(void *engine, void *data, void *info, unsigned int w, unsigned int h)
{
Evas_Engine_Info_Wayland *einfo = info;
Render_Engine *re = data;
Ecore_Wl2_Display *ewd;
Outbuf *ob;
ob = re->generic.ob;
ewd = ecore_wl2_window_display_get(einfo->info.wl2_win);
if (ob->ewd != ewd)
{
/* We don't use a purging flush because we don't want to
* delete a buffer currently being displayed */
if (ewd)
ecore_wl2_surface_flush(ob->surface, EINA_FALSE);
re->generic.ob->ewd = ewd;
}
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, void *data)
{
Render_Engine *re;
if ((re = (Render_Engine *)data))
{
evas_render_engine_software_generic_clean(engine, &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);
}
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;
/* 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",
sizeof(Evas_Engine_Info_Wayland)))
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(output_info_setup);
ORD(output_setup);
ORD(output_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;
/* 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
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