From 100a2af54c9f862b26ea6fe8f197a827b7040c88 Mon Sep 17 00:00:00 2001
From: Boram Park <boram1288.park@samsung.com>
Date: Mon, 8 Jun 2015 13:08:59 +0900
Subject: [PATCH] gl_drm: support evas_render_copy

Change-Id: Iec1dac4cd10e9f4dbe2e2fcefd988b6019279431
---
 src/modules/evas/engines/gl_drm/evas_drm.c      |  6 ++--
 src/modules/evas/engines/gl_drm/evas_drm_main.c | 39 +++++++++++++++++++++++++
 src/modules/evas/engines/gl_drm/evas_engine.c   | 15 ++++++++++
 src/modules/evas/engines/gl_drm/evas_engine.h   |  2 ++
 4 files changed, 59 insertions(+), 3 deletions(-)

diff --git a/src/modules/evas/engines/gl_drm/evas_drm.c b/src/modules/evas/engines/gl_drm/evas_drm.c
index 19d8594..3180c34 100644
--- a/src/modules/evas/engines/gl_drm/evas_drm.c
+++ b/src/modules/evas/engines/gl_drm/evas_drm.c
@@ -23,8 +23,8 @@ _evas_drm_crtc_buffer_get(int fd, int crtc_id)
    return id;
 }
 
-static Ecore_Drm_Output*
-_evas_drm_output_find(unsigned int crtc_id)
+Ecore_Drm_Output*
+evas_drm_output_find(unsigned int crtc_id)
 {
    Ecore_Drm_Device *dev;
    Ecore_Drm_Output *output;
@@ -341,7 +341,7 @@ evas_drm_framebuffer_send(Outbuf *ob, Buffer *buffer)
 
         if (!ob->output)
           {
-             ob->output = _evas_drm_output_find(ob->priv.crtc);
+             ob->output = evas_drm_output_find(ob->priv.crtc);
              EINA_SAFETY_ON_NULL_RETURN_VAL(ob->output, EINA_FALSE);
           }
 
diff --git a/src/modules/evas/engines/gl_drm/evas_drm_main.c b/src/modules/evas/engines/gl_drm/evas_drm_main.c
index 0649341..fe75b6d 100644
--- a/src/modules/evas/engines/gl_drm/evas_drm_main.c
+++ b/src/modules/evas/engines/gl_drm/evas_drm_main.c
@@ -1,5 +1,8 @@
 #include "evas_engine.h"
 
+#include <sys/mman.h>
+#include <fcntl.h>
+
 /* local variables */
 static Outbuf *_evas_gl_drm_window = NULL;
 static EGLContext context = EGL_NO_CONTEXT;
@@ -678,3 +681,39 @@ eng_outbuf_egl_display_get(Outbuf *ob)
 {
    return ob->egl_disp;
 }
+
+void
+eng_outbuf_copy(Outbuf *ob, void *buffer, int stride, int width EINA_UNUSED, int height, uint format EINA_UNUSED,
+                int sx EINA_UNUSED, int sy EINA_UNUSED, int sw EINA_UNUSED, int sh EINA_UNUSED,
+                int dx EINA_UNUSED, int dy EINA_UNUSED, int dw EINA_UNUSED, int dh EINA_UNUSED)
+{
+   Ecore_Drm_Output *output;
+   uint fb_handle, fb_fmt;
+   int fb_w, fb_h;
+   void *data;
+   struct drm_mode_map_dumb arg = {0,};
+
+   output = evas_drm_output_find(ob->priv.crtc);
+
+   /* TODO: should find the better way to find current framebuffer */
+   ecore_drm_output_current_fb_info_get(output, &fb_handle, &fb_w, &fb_h, &fb_fmt);
+
+   arg.handle = fb_handle;
+   if (drmIoctl(ob->priv.fd, DRM_IOCTL_MODE_MAP_DUMB, &arg))
+     {
+        DBG("dump map failed");
+        return;
+     }
+
+   data = mmap(NULL, fb_w * fb_h * 4, PROT_READ|PROT_WRITE, MAP_SHARED,
+               ob->priv.fd, arg.offset);
+   if (data == MAP_FAILED)
+     {
+        DBG("mmap failed");
+        return;
+     }
+
+   memcpy(buffer, data, stride * height);
+
+   munmap(data, fb_w * fb_h * 4);
+}
diff --git a/src/modules/evas/engines/gl_drm/evas_engine.c b/src/modules/evas/engines/gl_drm/evas_engine.c
index a54b237..b5283ee 100644
--- a/src/modules/evas/engines/gl_drm/evas_engine.c
+++ b/src/modules/evas/engines/gl_drm/evas_engine.c
@@ -868,6 +868,20 @@ eng_output_dump(void *data)
 }
 
 static void
+eng_output_copy(void *data, void *buffer, int stride, int width, int height, uint format, int sx, int sy, int sw, int sh, int dx, int dy, int dw, int dh)
+{
+   Render_Engine *re;
+   Outbuf *ob;
+
+   if (!(re = (Render_Engine *)data)) return;
+
+   ob = eng_get_ob(re);
+   EINA_SAFETY_ON_NULL_RETURN(ob);
+
+   eng_outbuf_copy(ob, buffer, stride, width, height, format, sx, sy, sw, sh, dx, dy, dw, dh);
+}
+
+static void
 _native_cb_bind(void *data EINA_UNUSED, void *image)
 {
    Evas_GL_Image *img;
@@ -1213,6 +1227,7 @@ module_open(Evas_Module *em)
    ORD(output_free);
    ORD(output_dump);
    ORD(image_native_set);
+   ORD(output_copy);
 
    /* Mesa's EGL driver loads wayland egl by default. (called by eglGetProcaddr() )
     * implicit env set (EGL_PLATFORM=drm) prevent that. */
diff --git a/src/modules/evas/engines/gl_drm/evas_engine.h b/src/modules/evas/engines/gl_drm/evas_engine.h
index 2d30682..31b0c53 100644
--- a/src/modules/evas/engines/gl_drm/evas_engine.h
+++ b/src/modules/evas/engines/gl_drm/evas_engine.h
@@ -192,6 +192,8 @@ void evas_drm_outbuf_framebuffer_set(Outbuf *ob, Buffer *buffer);
 Eina_Bool evas_drm_framebuffer_send(Outbuf *ob, Buffer *buffer);
 void evas_drm_outbuf_event_flip(int fd, unsigned int seq, unsigned int sec, unsigned int usec, void *data);
 void evas_drm_outbuf_event_vblank(int fd, unsigned int seq, unsigned int sec, unsigned int usec, void *data);
+Ecore_Drm_Output* evas_drm_output_find(unsigned int crtc_id);
+void eng_outbuf_copy(Outbuf *ob, void *buffer, int stride, int width, int height, uint format, int sx, int sy, int sw, int sh, int dx, int dy, int dw, int dh);
 
 static inline Outbuf *
 eng_get_ob(Render_Engine *re)
-- 
2.7.4