Thank you for porting this !! :)
Cheers,
dh
On 23/07/13 02:29, Sung W. Park - Enlightenment Git wrote:
> sung pushed a commit to branch master.
>
> commit 7aa516c01a620da3438de864ac0c0e5b80c93d0b
> Author: Sung W. Park <dunamis.p...@samsung.com>
> Date: Tue Jul 23 10:23:36 2013 +0900
>
> Evas: adding image dump debug feature for wayland_egl backend
>
> Porting commit f10c108283d9b76708418ba172b9ff0b28a09cd6 to wayland
> engine.
>
> Added a feature to dump out a png image before calling SwapBuffers.
> To turn on the feature, use the following env vars.
>
> EVAS_GL_SWAP_BUFFER_DEBUG_DIR="dir_name" sets the name of the directory
> that the files will be output to and enables the debug mode.
>
> EVAS_GL_SWAP_BUFFER_DEBUG_ALWAYS=1 will enable the writing of the
> files every frame. This in effect turns on the swap_buffer_debug
> variable, which can be set on or off in gdb for debugging. This will
> allow dumping of certain frames without having to dump out a ton of
> files to track down one frame.
> ---
> src/modules/evas/engines/wayland_egl/evas_engine.c | 43
> ++++++++++++++++++++++
> 1 file changed, 43 insertions(+)
>
> diff --git a/src/modules/evas/engines/wayland_egl/evas_engine.c
> b/src/modules/evas/engines/wayland_egl/evas_engine.c
> index 1db4dbd..65edcca 100644
> --- a/src/modules/evas/engines/wayland_egl/evas_engine.c
> +++ b/src/modules/evas/engines/wayland_egl/evas_engine.c
> @@ -41,6 +41,7 @@ struct _Render_Engine
> Eina_Bool lost_back : 1;
> Eina_Bool end : 1;
> Eina_Bool evgl_initted : 1;
> + int frame_cnt;
>
> struct
> {
> @@ -103,6 +104,9 @@ static Eina_Bool extn_have_buffer_age = EINA_TRUE;
> static int safe_native = -1;
> static int partial_rect_union_mode = -1;
>
> +static int swap_buffer_debug_mode = -1;
> +static int swap_buffer_debug = 0;
> +
> /* function tables - filled in later (func and parent func) */
> static Evas_Func func, pfunc;
> static EVGL_Interface evgl_funcs =
> @@ -1188,6 +1192,7 @@ static void
> eng_output_flush(void *data, Evas_Render_Mode render_mode)
> {
> Render_Engine *re;
> + static char *dname = NULL;
>
> if (!(re = (Render_Engine *)data)) return;
>
> @@ -1201,6 +1206,41 @@ eng_output_flush(void *data, Evas_Render_Mode
> render_mode)
>
> evas_gl_common_context_done(re->win->gl_context);
>
> + // Save contents of the framebuffer to a file
> + if (swap_buffer_debug_mode == -1)
> + {
> + if ((dname = getenv("EVAS_GL_SWAP_BUFFER_DEBUG_DIR")))
> + {
> + int stat;
> + // Create a directory with 0775 permission
> + stat = mkdir(dname, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
> + if ((!stat) || errno == EEXIST) swap_buffer_debug_mode = 1;
> + }
> + else
> + swap_buffer_debug_mode = 0;
> + }
> +
> + if (swap_buffer_debug_mode == 1)
> + {
> + // Set this env var to dump files every frame
> + // Or set the global var in gdb to 1|0 to turn it on and off
> + if (getenv("EVAS_GL_SWAP_BUFFER_DEBUG_ALWAYS"))
> + swap_buffer_debug = 1;
> +
> + if (swap_buffer_debug)
> + {
> + char fname[100];
> + int ret = 0;
> + sprintf(fname, "%p", (void*)re->win);
> +
> + ret = evas_gl_common_buffer_dump(re->win->gl_context,
> + (const char*)dname,
> + (const char*)fname,
> + re->frame_cnt);
> + if (!ret) swap_buffer_debug_mode = 0;
> + }
> + }
> +
> if (!re->vsync)
> {
> if (re->info->vsync) eglSwapInterval(re->win->egl_disp, 1);
> @@ -1278,6 +1318,9 @@ eng_output_flush(void *data, Evas_Render_Mode
> render_mode)
> evas_common_tilebuf_free_render_rects(re->rects);
> re->rects = NULL;
> }
> +
> + re->frame_cnt++;
> +
> end:
> evas_gl_preload_render_unlock(eng_gl_preload_make_current, re);
> }
>
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