evas: change alloca->malloc for avoid stack overflow

when texture upload using memcpy case, sometimes crash happens in enlightenment.
it may be memory corruption problem when alloac is failed because of Stack overflow
so i replace alloca to malloc for avoid stack overflow

Change-Id: I20ad80df73d9e63d832acfdf4a281743841b6b46

diff --git a/src/modules/evas/engines/gl_common/evas_gl_texture.c b/src/modules/evas/engines/gl_common/evas_gl_texture.c
index a99505a..1fe2c06 100644 (file)
--- a/src/modules/evas/engines/gl_common/evas_gl_texture.c
+++ b/src/modules/evas/engines/gl_common/evas_gl_texture.c
@@ -1154,7 +1154,12 @@ evas_gl_common_texture_upload(Evas_GL_Texture *tex, RGBA_Image *im, unsigned int
         dh = im->cache_entry.h + 2;
         sw = im->cache_entry.w;
         sh = im->cache_entry.h;
-        DATA32 * temp = alloca (dw * dh * bytes_count);
+        DATA32 * temp = malloc (dw * dh * bytes_count);
+        if(!temp)
+          {
+             ERR("memory allocation is failed..");
+             return;
+          }
         DATA8 *dp = (unsigned char *)temp;
         DATA8 *sp = (unsigned char *)im->image.data;
         int i;
@@ -1184,6 +1189,7 @@ evas_gl_common_texture_upload(Evas_GL_Texture *tex, RGBA_Image *im, unsigned int
         // xxxxx
         memcpy(dp, dp + (dw * bytes_count), dw * bytes_count);
         _tex_sub_2d(tex->gc, tex->x - 1, tex->y - 1, dw, dh, fmt, tex->pt->dataformat, temp);
+        free(temp);
      }
    else
      {