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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.
This commit is contained in:
Sung W. Park 2013-07-23 10:23:36 +09:00
parent 3074280217
commit 7aa516c01a
1 changed files with 43 additions and 0 deletions
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43
src/modules/evas/engines/wayland_egl/evas_engine.c
View File

@ -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);
}