Add Pbuffer support on Tizen platformsubmit/tizen/20190429.015220accepted/tizen/unified/20190429.103817

Patch includes:
1. Add EGL_PBUFFER_BIT to surface_type if maskes match
2. Alloc local buffer when render buffer type is
"FRONT_LEFT" which will be used by Pbuffer

Change-Id: I8cb2b7776a334f96cf67408b81c8325bd9b46bf9
Signed-off-by: Zhaowei Yuan <zhaowei.yuan@samsung.com>

1 files changed, 45 insertions, 9 deletions

diff --git a/src/egl/drivers/dri2/platform_tizen.c b/src/egl/drivers/dri2/platform_tizen.c
index ad145b62ee2..0d33138e2e7 100644
--- a/src/egl/drivers/dri2/platform_tizen.c
+++ b/src/egl/drivers/dri2/platform_tizen.c
@@ -52,6 +52,13 @@
 #include <drm_fourcc.h>
 
 int tbm_bufmgr_fd = -1;
+struct rgba_masks {
+   unsigned int red;
+   unsigned int green;
+   unsigned int blue;
+   unsigned int alpha;
+};
+
 static void tizen_free_local_buffers(struct dri2_egl_surface *dri2_surf);
 
 /* createImageFromFds requires fourcc format */
@@ -359,7 +366,6 @@ tizen_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 
       tpl_surf_type = TPL_SURFACE_TYPE_WINDOW;
    } else if (type == EGL_PIXMAP_BIT) {
-
       if (!native_window) {
          _eglError(EGL_BAD_NATIVE_PIXMAP, "tizen_create_surface needs valid native pixmap");
          goto cleanup_surface;
@@ -376,17 +382,16 @@ tizen_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
       }
 
       tpl_surf_type = TPL_SURFACE_TYPE_PIXMAP;
-   } else {
-      _eglError(EGL_BAD_NATIVE_WINDOW, "tizen_create_surface does not support PBuffer");
-      goto cleanup_surface;
    }
 
-   dri2_surf->tpl_surface = tpl_surface_create(dri2_dpy->tpl_display,
+   if(type == EGL_WINDOW_BIT || type == EGL_PIXMAP_BIT) {
+      dri2_surf->tpl_surface = tpl_surface_create(dri2_dpy->tpl_display,
                                                (tpl_handle_t)native_window,
                                                tpl_surf_type,
                                                dri2_surf->tbm_format);
-   if (!dri2_surf->tpl_surface)
-      goto cleanup_surface;
+      if (!dri2_surf->tpl_surface)
+         goto cleanup_surface;
+   }
 
    if (dri2_dpy->dri2) {
       createNewDrawable = dri2_dpy->dri2->createNewDrawable;
@@ -464,7 +469,8 @@ tizen_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
 
    dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
 
-   tpl_object_unreference((tpl_object_t *)dri2_surf->tpl_surface);
+   if (dri2_surf->tpl_surface)
+      tpl_object_unreference((tpl_object_t *)dri2_surf->tpl_surface);
 
    free(dri2_surf);
 
@@ -1047,6 +1053,9 @@ tizen_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
             break;
          }
          /* fall through for pbuffers */
+      case __DRI_BUFFER_FRONT_LEFT:
+         if (dri2_surf->base.Type != EGL_PBUFFER_BIT)
+            break;
       case __DRI_BUFFER_DEPTH:
       case __DRI_BUFFER_STENCIL:
       case __DRI_BUFFER_ACCUM:
@@ -1059,7 +1068,6 @@ tizen_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
             num_buffers++;
          }
          break;
-      case __DRI_BUFFER_FRONT_LEFT:
       case __DRI_BUFFER_FRONT_RIGHT:
       case __DRI_BUFFER_FAKE_FRONT_LEFT:
       case __DRI_BUFFER_FAKE_FRONT_RIGHT:
@@ -1232,6 +1240,11 @@ tizen_add_configs(_EGLDriver *drv, _EGLDisplay *dpy)
    int count, i;
 
    for (i = 0, count = 0; dri2_dpy->driver_configs[i]; i++) {
+      static const struct rgba_masks pbuffer_masks[] = {
+         { 0xff0000, 0xff00, 0xff, 0xff000000 }, /* ARGB8888 */
+         { 0xff0000, 0xff00, 0xff, 0x0 },        /* RGB888 */
+         { 0x00f800, 0x07e0, 0x1f, 0x0 },        /* RGB565 */
+      };
       struct dri2_egl_config *dri2_cfg;
       unsigned int red, blue, green, alpha, depth;
       int surface_type = 0;
@@ -1241,6 +1254,8 @@ tizen_add_configs(_EGLDriver *drv, _EGLDisplay *dpy)
          EGL_NONE,
       };
       tpl_result_t res;
+      struct rgba_masks masks;
+      int j;
 
       dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[i],
                                       __DRI_ATTRIB_RED_SIZE, &red);
@@ -1265,6 +1280,27 @@ tizen_add_configs(_EGLDriver *drv, _EGLDisplay *dpy)
       if (res == TPL_ERROR_NONE)
         surface_type |= EGL_PIXMAP_BIT;
 
+      dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[i],
+                                      __DRI_ATTRIB_RED_MASK, &masks.red);
+      dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[i],
+                                      __DRI_ATTRIB_GREEN_MASK, &masks.green);
+      dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[i],
+                                      __DRI_ATTRIB_BLUE_MASK, &masks.blue);
+      dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[i],
+                                      __DRI_ATTRIB_ALPHA_MASK, &masks.alpha);
+
+      for (j = 0; j < ARRAY_SIZE(pbuffer_masks); j++) {
+         const struct rgba_masks *pbuffer_mask = &pbuffer_masks[j];
+
+         if (pbuffer_mask->red   == masks.red &&
+             pbuffer_mask->green == masks.green &&
+             pbuffer_mask->blue  == masks.blue &&
+             pbuffer_mask->alpha == masks.alpha) {
+            surface_type |= EGL_PBUFFER_BIT;
+            break;
+         }
+      }
+
       if (!surface_type)
         continue;