evas-gl-drm: Refactor gl_drm engine to not use dumb buffers

@fix

Signed-off-by: Chris Michael <cp.michael@samsung.com>

3 files changed, 168 insertions, 124 deletions

diff --git a/src/modules/evas/engines/gl_drm/evas_engine.c b/src/modules/evas/engines/gl_drm/evas_engine.c
index 835417ccbb..ceddf5c537 100644
--- a/src/modules/evas/engines/gl_drm/evas_engine.c
+++ b/src/modules/evas/engines/gl_drm/evas_engine.c
@@ -8,6 +8,10 @@
 # error gl_drm should not get compiled if dlsym is not found on the system!
 #endif
 
+#ifdef EVAS_CSERVE2
+# include "evas_cs2_private.h"
+#endif
+
 #define EVAS_GL_NO_GL_H_CHECK 1
 #include "Evas_GL.h"
 
@@ -40,6 +44,15 @@ struct _Native
    void *egl_surface;
 };
 
+/* local function prototype types */
+typedef void (*_eng_fn)(void);
+typedef _eng_fn (*glsym_func_eng_fn)();
+typedef void (*glsym_func_void)();
+typedef void *(*glsym_func_void_ptr)();
+typedef int (*glsym_func_int)();
+typedef unsigned int (*glsym_func_uint)();
+typedef const char *(*glsym_func_const_char_ptr)();
+
 /* external dynamic loaded Evas_GL function pointers */
 Evas_GL_Common_Image_Call glsym_evas_gl_common_image_ref = NULL;
 Evas_GL_Common_Image_Call glsym_evas_gl_common_image_unref = NULL;
@@ -51,6 +64,7 @@ Evas_GL_Common_Context_Call glsym_evas_gl_common_image_all_unload = NULL;
 Evas_GL_Preload glsym_evas_gl_preload_init = NULL;
 Evas_GL_Preload glsym_evas_gl_preload_shutdown = NULL;
 EVGL_Engine_Call glsym_evgl_engine_shutdown = NULL;
+EVGL_Current_Native_Context_Get_Call glsym_evgl_current_native_context_get = NULL;
 Evas_Gl_Symbols glsym_evas_gl_symbols = NULL;
 
 Evas_GL_Common_Context_New glsym_evas_gl_common_context_new = NULL;
@@ -65,14 +79,7 @@ Evas_GL_Preload_Render_Call glsym_evas_gl_preload_render_lock = NULL;
 Evas_GL_Preload_Render_Call glsym_evas_gl_preload_render_unlock = NULL;
 Evas_GL_Preload_Render_Call glsym_evas_gl_preload_render_relax = NULL;
 
-/* local function prototype types */
-typedef void (*_eng_fn)(void);
-typedef _eng_fn (*glsym_func_eng_fn)();
-typedef void (*glsym_func_void)();
-typedef void *(*glsym_func_void_ptr)();
-typedef int (*glsym_func_int)();
-typedef unsigned int (*glsym_func_uint)();
-typedef const char *(*glsym_func_const_char_ptr)();
+glsym_func_void_ptr glsym_evas_gl_common_current_context_get = NULL;
 
 /* dynamic loaded local egl function pointers */
 _eng_fn (*glsym_eglGetProcAddress)(const char *a) = NULL;
@@ -163,7 +170,9 @@ gl_symbols(void)
    LINK2GENERIC(evas_gl_preload_init);
    LINK2GENERIC(evas_gl_preload_shutdown);
    LINK2GENERIC(evgl_engine_shutdown);
+   LINK2GENERIC(evgl_current_native_context_get);
    LINK2GENERIC(evas_gl_symbols);
+   LINK2GENERIC(evas_gl_common_current_context_get);
 
 #define FINDSYM(dst, sym, typ) \
    if (glsym_eglGetProcAddress) { \
@@ -248,7 +257,7 @@ evgl_eng_display_get(void *data)
      }
 
    if (eng_get_ob(re))
-     return (void*)eng_get_ob(re)->egl.disp;
+     return (void *)eng_get_ob(re)->egl.disp;
    else
      return NULL;
 }
@@ -266,7 +275,7 @@ evgl_eng_evas_surface_get(void *data)
      }
 
    if (eng_get_ob(re))
-     return (void*)eng_get_ob(re)->egl.surface[0];
+     return (void *)eng_get_ob(re)->egl.surface[0];
    else
      return NULL;
 }
@@ -371,6 +380,9 @@ evgl_eng_native_window_destroy(void *data, void *native_window)
      }
 
    gbm_surface_destroy((struct gbm_surface *)native_window);
+
+   native_window = NULL;
+
    return 1;
 }
 
@@ -468,7 +480,7 @@ evgl_eng_context_create(void *data, void *share_ctx, Evas_GL_Context_Version ver
 
    if (!context)
      {
-        ERR("Engine Context Creations Failed. Error: %#x.", eglGetError());
+        ERR("eglMakeCurrent() failed! Error Code=%#x", eglGetError());
         return NULL;
      }
 
@@ -596,6 +608,8 @@ _native_cb_bind(void *data EINA_UNUSED, void *image)
      }
    else if (n->ns.type == EVAS_NATIVE_SURFACE_OPENGL)
      glBindTexture(GL_TEXTURE_2D, n->ns.data.opengl.texture_id);
+
+   /* TODO: NATIVE_SURFACE_TBM and NATIVE_SURFACE_EVASGL */
 }
 
 static void
@@ -613,6 +627,8 @@ _native_cb_unbind(void *data EINA_UNUSED, void *image)
      }
    else if (n->ns.type == EVAS_NATIVE_SURFACE_OPENGL)
      glBindTexture(GL_TEXTURE_2D, 0);
+
+   /* TODO: NATIVE_SURFACE_TBM and NATIVE_SURFACE_EVASGL */
 }
 
 static void
@@ -669,7 +685,6 @@ eng_gbm_init(Evas_Engine_Info_GL_Drm *info, int w, int h)
    if (!info) return EINA_FALSE;
    if (!(dev = info->info.dev)) return EINA_FALSE;
 
-   DBG("Create GBM Device");
    if (!(info->info.gbm = gbm_create_device(dev->drm.fd)))
      {
         ERR("Coult not create gbm device: %m");
@@ -769,7 +784,7 @@ eng_setup(Evas *evas, void *in)
    if (!(re = epd->engine.data.output))
      {
         Outbuf *ob;
-        Render_Engine_Merge_Mode merge_mode = MERGE_FULL;
+        Render_Engine_Merge_Mode merge_mode = MERGE_BOUNDING;
 
         if (!initted)
           {
@@ -850,57 +865,45 @@ eng_setup(Evas *evas, void *in)
                  (info->info.depth != eng_get_ob(re)->depth) ||
                  (info->info.destination_alpha != eng_get_ob(re)->destination_alpha))
                {
-                  Outbuf *ob;
+                  Outbuf *ob, *ob_old;
 
-                  eng_get_ob(re)->gl_context->references++;
+                  ob_old = re->generic.software.ob;
+                  re->generic.software.ob = NULL;
                   gl_wins--;
 
                   ob = evas_outbuf_new(info, epd->output.w, epd->output.h, swap_mode);
-
-                  evas_outbuf_free(eng_get_ob(re));
-                  re->generic.software.ob = NULL;
+                  if (!ob)
+                    {
+                       if (ob_old) evas_outbuf_free(ob_old);
+                       free(re);
+                       return 0;
+                    }
 
                   evas_outbuf_use(ob);
-                  if (ob)
-                    {
-                       ob->evas = evas;
+                  if (ob_old) evas_outbuf_free(ob_old);
 
-                       evas_render_engine_software_generic_update(&re->generic.software, ob,
-                                                                  epd->output.w, epd->output.h);
+                  ob->evas = evas;
 
-                       gl_wins++;
-                       eng_get_ob(re)->gl_context->references--;
-                    }
+                  evas_render_engine_software_generic_update(&re->generic.software, ob,
+                                                             epd->output.w, epd->output.h);
+
+                  gl_wins++;
                }
              else if ((eng_get_ob(re)->w != epd->output.w) ||
                       (eng_get_ob(re)->h != epd->output.h) ||
                       (info->info.rotation != eng_get_ob(re)->rotation))
                {
-                  Outbuf *ob;
-
-                  eng_get_ob(re)->gl_context->references++;
-                  gl_wins--;
-
-                  evas_outbuf_free(eng_get_ob(re));
-                  re->generic.software.ob = NULL;
-
-                  eng_gbm_shutdown(eng_get_ob(re)->info);
-                  if (!eng_gbm_init(info, epd->output.w, epd->output.h))
-                    return 0;
-
-                  ob = evas_outbuf_new(info, epd->output.w, epd->output.h, swap_mode);
-
-                  evas_outbuf_use(ob);
-                  if (ob)
-                    {
-                       ob->evas = evas;
-
-                       evas_render_engine_software_generic_update(&re->generic.software, ob,
-                                                                  epd->output.w, epd->output.h);
-
-                       gl_wins++;
-                       eng_get_ob(re)->gl_context->references--;
-                    }
+                  evas_outbuf_reconfigure(eng_get_ob(re),
+                                          epd->output.w, epd->output.h,
+                                          info->info.rotation,
+                                          info->info.depth);
+                  if (re->generic.software.tb)
+                    evas_common_tilebuf_free(re->generic.software.tb);
+                  re->generic.software.tb =
+                    evas_common_tilebuf_new(epd->output.w, epd->output.h);
+                  if (re->generic.software.tb)
+                    evas_common_tilebuf_set_tile_size(re->generic.software.tb,
+                                                      TILESIZE, TILESIZE);
                }
           }
      }
@@ -923,7 +926,8 @@ eng_setup(Evas *evas, void *in)
         return 0;
      }
 
-   evas_render_engine_software_generic_tile_strict_set(&re->generic.software, EINA_TRUE);
+   if (re->generic.software.tb)
+     evas_render_engine_software_generic_tile_strict_set(&re->generic.software, EINA_TRUE);
 
    if (!epd->engine.data.context)
      {
@@ -1208,9 +1212,26 @@ eng_image_native_set(void *data, void *image, void *native)
           }
      }
 
+   /* TODO: NATIVE_SURFACE_TBM and NATIVE_SURFACE_EVASGL */
+
    return img;
 }
 
+static void *
+eng_gl_current_context_get(void *data EINA_UNUSED)
+{
+   EVGL_Context *ctx;
+   EVGLNative_Context context;
+
+   ctx = glsym_evas_gl_common_current_context_get();
+   if (!ctx) return NULL;
+
+   context = glsym_evgl_current_native_context_get(ctx);
+   if (eglGetCurrentContext() == context) return ctx;
+
+   return NULL;
+}
+
 /* module api functions */
 static int
 module_open(Evas_Module *em)
@@ -1246,10 +1267,12 @@ module_open(Evas_Module *em)
    EVAS_API_OVERRIDE(output_free, &func, eng_);
    EVAS_API_OVERRIDE(output_dump, &func, eng_);
    EVAS_API_OVERRIDE(image_native_set, &func, eng_);
+   EVAS_API_OVERRIDE(gl_current_context_get, &func, eng_);
 
    /* Mesa's EGL driver loads wayland egl by default. (called by eglGetProcaddr() )
     * implicit env set (EGL_PLATFORM=drm) prevent that. */
    setenv("EGL_PLATFORM", "drm", 1);
+
    gl_symbols();
 
    /* now advertise out own api */
diff --git a/src/modules/evas/engines/gl_drm/evas_engine.h b/src/modules/evas/engines/gl_drm/evas_engine.h
index 3aa25e4a33..28928932e7 100644
--- a/src/modules/evas/engines/gl_drm/evas_engine.h
+++ b/src/modules/evas/engines/gl_drm/evas_engine.h
@@ -87,7 +87,6 @@ struct _Outbuf
      {
         int prev_age, frame_cnt;
         int curr, last, num;
-        Ecore_Drm_Fb *buffer[4];
         struct gbm_bo *bo[4];
         Eina_List *pending_writes;
      } priv;
@@ -127,4 +126,6 @@ _re_wincheck(Outbuf *ob)
    return EINA_FALSE;
 }
 
+extern unsigned int (*glsym_eglSwapBuffersWithDamage)(EGLDisplay a, void *b, const EGLint *d, EGLint c);
+
 #endif
diff --git a/src/modules/evas/engines/gl_drm/evas_outbuf.c b/src/modules/evas/engines/gl_drm/evas_outbuf.c
index 9df628f47f..09f2981b7d 100644
--- a/src/modules/evas/engines/gl_drm/evas_outbuf.c
+++ b/src/modules/evas/engines/gl_drm/evas_outbuf.c
@@ -6,18 +6,74 @@ static EGLContext context = EGL_NO_CONTEXT;
 static int win_count = 0;
 
 static void
+_evas_outbuf_fb_cb_destroy(struct gbm_bo *bo, void *data)
+{
+   Ecore_Drm_Fb *fb;
+
+   fb = data;
+   if (fb)
+     {
+        struct gbm_device *gbm;
+
+        gbm = gbm_bo_get_device(bo);
+        drmModeRmFB(gbm_device_get_fd(gbm), fb->id);
+        free(fb);
+     }
+}
+
+static Ecore_Drm_Fb *
+_evas_outbuf_fb_get(Ecore_Drm_Device *dev, struct gbm_bo *bo)
+{
+   int ret;
+   Ecore_Drm_Fb *fb;
+   uint32_t format;
+   uint32_t handles[4], pitches[4], offsets[4];
+
+   fb = gbm_bo_get_user_data(bo);
+   if (fb) return fb;
+
+   if (!(fb = calloc(1, sizeof(Ecore_Drm_Fb)))) return NULL;
+
+   format = gbm_bo_get_format(bo);
+
+   fb->w = gbm_bo_get_width(bo);
+   fb->h = gbm_bo_get_height(bo);
+   fb->hdl = gbm_bo_get_handle(bo).u32;
+   fb->stride = gbm_bo_get_stride(bo);
+   fb->size = fb->stride * fb->h;
+
+   handles[0] = fb->hdl;
+   pitches[0] = fb->stride;
+   offsets[0] = 0;
+
+   ret = drmModeAddFB2(dev->drm.fd, fb->w, fb->h, format,
+                       handles, pitches, offsets, &(fb->id), 0);
+   if (ret)
+     ret = drmModeAddFB(dev->drm.fd, fb->w, fb->h, 24, 32,
+                        fb->stride, fb->hdl, &(fb->id));
+
+   if (ret) ERR("FAILED TO ADD FB: %m");
+
+   gbm_bo_set_user_data(bo, fb, _evas_outbuf_fb_cb_destroy);
+
+   return fb;
+}
+
+static void
 _evas_outbuf_cb_pageflip(void *data)
 {
    Outbuf *ob;
    Ecore_Drm_Fb *fb;
+   struct gbm_bo *bo;
 
    if (!(ob = data)) return;
 
-   if ((fb = ob->priv.buffer[ob->priv.curr]))
-     {
-        fb->pending_flip = EINA_FALSE;
-        gbm_surface_release_buffer(ob->surface, ob->priv.bo[ob->priv.curr]);
-     }
+   bo = ob->priv.bo[ob->priv.curr];
+
+   fb = _evas_outbuf_fb_get(ob->info->info.dev, bo);
+   if (fb) fb->pending_flip = EINA_FALSE;
+
+   gbm_surface_release_buffer(ob->surface, bo);
 
    ob->priv.last = ob->priv.curr;
    ob->priv.curr = (ob->priv.curr + 1) % ob->priv.num;
@@ -26,15 +82,17 @@ _evas_outbuf_cb_pageflip(void *data)
 static void
 _evas_outbuf_buffer_swap(Outbuf *ob, Eina_Rectangle *rects, unsigned int count)
 {
-   Ecore_Drm_Fb *buff;
-
-   buff = ob->priv.buffer[ob->priv.curr];
+   Ecore_Drm_Fb *fb;
 
    ob->priv.bo[ob->priv.curr] = gbm_surface_lock_front_buffer(ob->surface);
 
-   ecore_drm_fb_dirty(buff, rects, count);
-   ecore_drm_fb_set(ob->info->info.dev, buff);
-   ecore_drm_fb_send(ob->info->info.dev, buff, _evas_outbuf_cb_pageflip, ob);
+   fb = _evas_outbuf_fb_get(ob->info->info.dev, ob->priv.bo[ob->priv.curr]);
+   if (fb)
+     {
+        ecore_drm_fb_dirty(fb, rects, count);
+        ecore_drm_fb_set(ob->info->info.dev, fb);
+        ecore_drm_fb_send(ob->info->info.dev, fb, _evas_outbuf_cb_pageflip, ob);
+     }
 }
 
 static Eina_Bool
@@ -117,16 +175,6 @@ _evas_outbuf_egl_setup(Outbuf *ob)
         return EINA_FALSE;
      }
 
-   ob->egl.context[0] =
-     eglCreateContext(ob->egl.disp, ob->egl.config, context, ctx_attr);
-   if (ob->egl.context[0] == EGL_NO_CONTEXT)
-     {
-        ERR("eglCreateContext() fail. code=%#x", eglGetError());
-        return EINA_FALSE;
-     }
-
-   if (context == EGL_NO_CONTEXT) context = ob->egl.context[0];
-
    ob->egl.surface[0] =
      eglCreateWindowSurface(ob->egl.disp, ob->egl.config,
                             (EGLNativeWindowType)ob->surface, NULL);
@@ -137,6 +185,16 @@ _evas_outbuf_egl_setup(Outbuf *ob)
         return EINA_FALSE;
      }
 
+   ob->egl.context[0] =
+     eglCreateContext(ob->egl.disp, ob->egl.config, context, ctx_attr);
+   if (ob->egl.context[0] == EGL_NO_CONTEXT)
+     {
+        ERR("eglCreateContext() fail. code=%#x", eglGetError());
+        return EINA_FALSE;
+     }
+
+   if (context == EGL_NO_CONTEXT) context = ob->egl.context[0];
+
    if (eglMakeCurrent(ob->egl.disp, ob->egl.surface[0],
                       ob->egl.surface[0], ob->egl.context[0]) == EGL_FALSE)
      {
@@ -179,6 +237,8 @@ _evas_outbuf_egl_setup(Outbuf *ob)
         return EINA_FALSE;
      }
 
+   /* eng_gl_symbols(); */
+
    ob->gl_context = glsym_evas_gl_common_context_new();
    if (!ob->gl_context) return EINA_FALSE;
 
@@ -201,7 +261,6 @@ evas_outbuf_new(Evas_Engine_Info_GL_Drm *info, int w, int h, Render_Engine_Swap_
 {
    Outbuf *ob;
    char *num;
-   int i = 0;
 
    /* try to allocate space for outbuf */
    if (!(ob = calloc(1, sizeof(Outbuf)))) return NULL;
@@ -236,30 +295,13 @@ evas_outbuf_new(Evas_Engine_Info_GL_Drm *info, int w, int h, Render_Engine_Swap_
         return NULL;
      }
 
-   for (; i < ob->priv.num; i++)
-     {
-        ob->priv.buffer[i] = 
-          ecore_drm_fb_create(ob->info->info.dev, ob->w, ob->h);
-        if (!ob->priv.buffer[i]) break;
-
-        DBG("Evas Engine Created Dumb Buffer");
-        DBG("\tFb: %d", ob->priv.buffer[i]->id);
-        DBG("\tHandle: %d", ob->priv.buffer[i]->hdl);
-        DBG("\tStride: %d", ob->priv.buffer[i]->stride);
-        DBG("\tSize: %d", ob->priv.buffer[i]->size);
-        DBG("\tW: %d\tH: %d",
-            ob->priv.buffer[i]->w, ob->priv.buffer[i]->h);
-     }
-
-   ecore_drm_fb_set(info->info.dev, ob->priv.buffer[0]);
-
    return ob;
 }
 
 void
 evas_outbuf_free(Outbuf *ob)
 {
-   int i = 0, ref = 0;
+   int ref = 0;
 
    win_count--;
    evas_outbuf_use(ob);
@@ -296,9 +338,6 @@ evas_outbuf_free(Outbuf *ob)
         context = EGL_NO_CONTEXT;
      }
 
-   for (; i < ob->priv.num; i++)
-     ecore_drm_fb_destroy(ob->priv.buffer[i]);
-
    free(ob);
 }
 
@@ -390,38 +429,19 @@ evas_outbuf_unsurf(Outbuf *ob)
 void
 evas_outbuf_reconfigure(Outbuf *ob, int w, int h, int rot, Outbuf_Depth depth)
 {
-   int i = 0;
-
-   if (depth == OUTBUF_DEPTH_INHERIT) depth = ob->depth;
+   /* if (depth == OUTBUF_DEPTH_INHERIT) depth = ob->depth; */
 
    /* check for changes */
-   if ((ob->w == w) && (ob->h == h) &&
-       (ob->destination_alpha == ob->info->info.destination_alpha) &&
-       ((int)ob->rotation == rot) && (ob->depth == depth))
-     return;
+   /* if ((ob->w == w) && (ob->h == h) && */
+   /*     (ob->destination_alpha == ob->info->info.destination_alpha) && */
+   /*     ((int)ob->rotation == rot) && (ob->depth == depth)) */
+   /*   return; */
 
    ob->w = w;
    ob->h = h;
    ob->depth = depth;
    ob->rotation = rot;
-
-   /* destroy the old buffers */
-   for (; i < ob->priv.num; i++)
-     ecore_drm_fb_destroy(ob->priv.buffer[i]);
-
-   for (i = 0; i < ob->priv.num; i++)
-     {
-        ob->priv.buffer[i] = 
-          ecore_drm_fb_create(ob->info->info.dev, ob->w, ob->h);
-        if (!ob->priv.buffer[i])
-          {
-             ERR("Failed to create buffer %d", i);
-             break;
-          }
-     }
-
    evas_outbuf_use(ob);
-
    glsym_evas_gl_common_context_resize(ob->gl_context, w, h, rot);
 
    //TODO: need drm gbm surface destroy & re-create.?
@@ -532,7 +552,7 @@ evas_outbuf_flush(Outbuf *ob, Tilebuf_Rect *rects EINA_UNUSED, Evas_Render_Mode
      ob->info->callback.pre_swap(ob->info->callback.data, ob->evas);
 
 // TODO: Check eglSwapBuffersWithDamage for gl_drm and apply
-#if 0
+//#if 0
    if ((glsym_eglSwapBuffersWithDamage) && (ob->swap_mode != MODE_FULL))
      {
         EGLint num = 0, *result = NULL, i = 0;
@@ -549,7 +569,7 @@ evas_outbuf_flush(Outbuf *ob, Tilebuf_Rect *rects EINA_UNUSED, Evas_Render_Mode
 
                   gw = ob->gl_context->w;
                   gh = ob->gl_context->h;
-                  switch (ob->rot)
+                  switch (ob->rotation)
                     {
                      case 0:
                        result[i + 0] = r->x;
@@ -589,7 +609,7 @@ evas_outbuf_flush(Outbuf *ob, Tilebuf_Rect *rects EINA_UNUSED, Evas_Render_Mode
           }
      }
    else
-#endif
+//#endif
       eglSwapBuffers(ob->egl.disp, ob->egl.surface[0]);
 
    if (ob->info->callback.post_swap)
@@ -600,7 +620,7 @@ evas_outbuf_flush(Outbuf *ob, Tilebuf_Rect *rects EINA_UNUSED, Evas_Render_Mode
 
    ob->priv.frame_cnt++;
 
- end:
+end:
    //TODO: Need render unlock after drm page flip?
    glsym_evas_gl_preload_render_unlock(_evas_outbuf_make_current, ob);
 }