From ea5788d24716362891adfd1a7e47add7c79c4cc9 Mon Sep 17 00:00:00 2001
From: Dongyeon Kim <dy5.kim@samsung.com>
Date: Tue, 21 Apr 2015 10:18:16 +0900
Subject: [PATCH] Evas GL: destroy egl image when surface is destroyed

Summary:
We should destroy egl image when surface is destroyed
to avoid memory leak.
@fix

Test Plan: Evas GL test cases

Reviewers: jpeg

Subscribers: mer.kim, mythri, wonsik, cedric

Differential Revision: https://phab.enlightenment.org/D2357
---
 src/modules/evas/engines/gl_common/evas_gl_core.c | 39 +++++++++++++++++++++--
 1 file changed, 36 insertions(+), 3 deletions(-)

diff --git a/src/modules/evas/engines/gl_common/evas_gl_core.c b/src/modules/evas/engines/gl_common/evas_gl_core.c
index 8cccba8..1b836b7 100644
--- a/src/modules/evas/engines/gl_common/evas_gl_core.c
+++ b/src/modules/evas/engines/gl_common/evas_gl_core.c
@@ -270,6 +270,29 @@ _egl_image_create(EVGL_Context *context, GLuint tex)
 }
 
 static void
+_egl_image_destroy(void *image)
+{
+#ifdef GL_GLES
+   EGLDisplay dpy = EGL_NO_DISPLAY;
+   EVGL_Resource *rsc = NULL;
+
+   // Retrieve the resource object
+   if (!(rsc = _evgl_tls_resource_get()))
+     {
+        ERR("Error creating resources in tls.");
+        return;
+     }
+
+   dpy = (EGLDisplay)rsc->display;
+   if (!dpy) return;
+
+   EXT_FUNC(eglDestroyImage)(dpy, image);
+#else
+   (void) image;
+#endif
+}
+
+static void
 _framebuffer_create(GLuint *buf, Eina_Bool use_extension)
 {
    if (use_extension)
@@ -1150,7 +1173,12 @@ _surface_buffers_allocate(void *eng_data, EVGL_Surface *sfc, int w, int h, int m
      {
         _texture_allocate_2d(sfc->color_buf, sfc->color_ifmt, sfc->color_fmt,
                              GL_UNSIGNED_BYTE, w, h);
-        if ((sfc->current_ctx) && (sfc->current_ctx->fbo_image_supported))
+        if (sfc->egl_image)
+          {
+             _egl_image_destroy(sfc->egl_image);
+             sfc->egl_image = NULL;
+          }
+        if ((sfc->current_ctx) && (sfc->current_ctx->fbo_image_supported) && (w) && (h))
           sfc->egl_image = _egl_image_create(sfc->current_ctx, sfc->color_buf);
 
         sfc->buffer_mem[0] = w * h * 4;
@@ -1191,6 +1219,11 @@ _surface_buffers_allocate(void *eng_data, EVGL_Surface *sfc, int w, int h, int m
 static int
 _surface_buffers_destroy(EVGL_Surface *sfc)
 {
+   if (sfc->egl_image)
+     {
+        _egl_image_destroy(sfc->egl_image);
+        sfc->egl_image = NULL;
+     }
    if (sfc->color_buf)
       _texture_destroy(&sfc->color_buf);
    if (sfc->depth_buf)
@@ -2277,7 +2310,7 @@ evgl_make_current(void *eng_data, EVGL_Surface *sfc, EVGL_Context *ctx)
              // Destroy created resources
              if (sfc->buffers_allocated)
                {
-                  if (!_surface_buffers_allocate(eng_data, sfc, 0, 0, 1))
+                  if (!_surface_buffers_allocate(eng_data, sfc, 0, 0, 0))
                     {
                        ERR("Unable to destroy surface buffers!");
                        evas_gl_common_error_set(eng_data, EVAS_GL_BAD_ALLOC);
@@ -2298,7 +2331,7 @@ evgl_make_current(void *eng_data, EVGL_Surface *sfc, EVGL_Context *ctx)
                   if (!sfc->buffers_allocated)
                     {
                        if (dbg) DBG("Allocating buffers for sfc %p", sfc);
-                       if (!_surface_buffers_allocate(eng_data, sfc, sfc->w, sfc->h, 1))
+                       if (!_surface_buffers_allocate(eng_data, sfc, sfc->w, sfc->h, 0))
                          {
                             ERR("Unable Create Specificed Surfaces.  Unsupported format!");
                             evas_gl_common_error_set(eng_data, EVAS_GL_BAD_ALLOC);
-- 
2.7.4