change native api to allow for other types of native data like texture

id's, fbo's etc. too - at least it's versioned now.



SVN revision: 55315
This commit is contained in:
Carsten Haitzler 2010-12-06 07:09:51 +00:00
parent 157bf3a573
commit 640a4030f3
3 changed files with 326 additions and 265 deletions

View File

@ -339,16 +339,32 @@ struct _Evas_Pixel_Import_Source
void **rows; /**< an array of pointers (size depends on format) pointing to left edge of each scanline */ void **rows; /**< an array of pointers (size depends on format) pointing to left edge of each scanline */
}; };
/* magic version number to know what the native surf struct looks like */
#define EVAS_NATIVE_SURFACE_VERSION 2
typedef enum _Evas_Native_Surface_Type
{
EVAS_NATIVE_SURFACE_NONE,
EVAS_NATIVE_SURFACE_X11,
EVAS_NATIVE_SURFACE_OPENGL
} Evas_Native_Surface_Type;
struct _Evas_Native_Surface struct _Evas_Native_Surface
{ {
int version;
Evas_Native_Surface_Type type;
union { union {
struct { struct {
void *visual; void *visual; /**< visual of the pixmap to use (Visual) */
unsigned long pixmap; unsigned long pixmap; /**< pixmap id to use (Pixmap) */
} x11; } x11;
struct { /* padding data for future use - have space for 8 pointers */ struct {
void *d[8]; unsigned int texture_id; /**< opengl texture id to use from glGenTextures() */
} padding; unsigned int framebuffer_id; /**< 0 if not a FBO, FBO id otherwise from glGenFramebuffers() */
unsigned int internal_format; /**< same as 'internalFormat' for glTexImage2D() */
unsigned int format; /**< same as 'format' for glTexImage2D() */
unsigned int x, y, w, h; /**< region inside the texture to use (image size is assumed as texture size, with 0, 0 being the top-left and co-ordinates working down to the right and bottom being positive) */
} opengl;
} data; } data;
}; };

View File

@ -1896,6 +1896,8 @@ evas_object_image_native_surface_set(Evas_Object *obj, Evas_Native_Surface *surf
return; return;
MAGIC_CHECK_END(); MAGIC_CHECK_END();
if (!obj->layer->evas->engine.func->image_native_set) return; if (!obj->layer->evas->engine.func->image_native_set) return;
if ((surf->version < 2) ||
(surf->version > EVAS_NATIVE_SURFACE_VERSION)) return;
o->engine_data = o->engine_data =
obj->layer->evas->engine.func->image_native_set(obj->layer->evas->engine.data.output, obj->layer->evas->engine.func->image_native_set(obj->layer->evas->engine.data.output,
o->engine_data, o->engine_data,

View File

@ -1007,339 +1007,382 @@ _native_bind_cb(void *data, void *image)
Evas_GL_Image *im = image; Evas_GL_Image *im = image;
Native *n = im->native.data; Native *n = im->native.data;
if (n->ns.type == EVAS_NATIVE_SURFACE_X11)
{
#if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX) #if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX)
if (n->egl_surface) if (n->egl_surface)
{ {
if (glsym_glEGLImageTargetTexture2DOES) if (glsym_glEGLImageTargetTexture2DOES)
{ {
glsym_glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, n->egl_surface); glsym_glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, n->egl_surface);
if (eglGetError() != EGL_SUCCESS) if (eglGetError() != EGL_SUCCESS)
ERR("glEGLImageTargetTexture2DOES() failed."); ERR("glEGLImageTargetTexture2DOES() failed.");
} }
else else
ERR("Try glEGLImageTargetTexture2DOES on EGL with no support"); ERR("Try glEGLImageTargetTexture2DOES on EGL with no support");
} }
#else #else
# ifdef GLX_BIND_TO_TEXTURE_TARGETS_EXT # ifdef GLX_BIND_TO_TEXTURE_TARGETS_EXT
Render_Engine *re = data; Render_Engine *re = data;
if (glsym_glXBindTexImage) if (glsym_glXBindTexImage)
{ {
glsym_glXBindTexImage(re->win->disp, n->glx_pixmap, glsym_glXBindTexImage(re->win->disp, n->glx_pixmap,
GLX_FRONT_LEFT_EXT, NULL); GLX_FRONT_LEFT_EXT, NULL);
GLERR(__FUNCTION__, __FILE__, __LINE__, ""); GLERR(__FUNCTION__, __FILE__, __LINE__, "");
} }
else else
ERR("Try glXBindTexImage on GLX with no support"); ERR("Try glXBindTexImage on GLX with no support");
# endif # endif
#endif #endif
}
else if (n->ns.type == EVAS_NATIVE_SURFACE_OPENGL)
{
// FIXME: implement
}
} }
static void static void
_native_unbind_cb(void *data, void *image) _native_unbind_cb(void *data, void *image)
{ {
Evas_GL_Image *im = image; Evas_GL_Image *im = image;
Native *n = im->native.data;
if (n->ns.type == EVAS_NATIVE_SURFACE_X11)
{
#if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX) #if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX)
// nothing // nothing
#else #else
# ifdef GLX_BIND_TO_TEXTURE_TARGETS_EXT # ifdef GLX_BIND_TO_TEXTURE_TARGETS_EXT
Render_Engine *re = data; Render_Engine *re = data;
Native *n = im->native.data;
if (glsym_glXReleaseTexImage)
if (glsym_glXReleaseTexImage) {
{ glsym_glXReleaseTexImage(re->win->disp, n->glx_pixmap,
glsym_glXReleaseTexImage(re->win->disp, n->glx_pixmap, GLX_FRONT_LEFT_EXT);
GLX_FRONT_LEFT_EXT); GLERR(__FUNCTION__, __FILE__, __LINE__, "");
GLERR(__FUNCTION__, __FILE__, __LINE__, ""); }
} else
else ERR("Try glXReleaseTexImage on GLX with no support");
ERR("Try glXReleaseTexImage on GLX with no support");
# endif # endif
#endif #endif
}
else if (n->ns.type == EVAS_NATIVE_SURFACE_OPENGL)
{
// FIXME: implement
}
} }
static void static void
_native_free_cb(void *data, void *image) _native_free_cb(void *data, void *image)
{ {
Render_Engine *re = data; Render_Engine *re = data;
Evas_GL_Image *im = image; Evas_GL_Image *im = image;
Native *n = im->native.data; Native *n = im->native.data;
uint32_t pmid; uint32_t pmid;
pmid = n->pixmap; if (n->ns.type == EVAS_NATIVE_SURFACE_X11)
eina_hash_del(re->win->gl_context->shared->native_hash, &pmid, im); {
pmid = n->pixmap;
eina_hash_del(re->win->gl_context->shared->native_hash, &pmid, im);
#if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX) #if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX)
if (n->egl_surface) if (n->egl_surface)
{ {
if (glsym_eglDestroyImage) if (glsym_eglDestroyImage)
{ {
glsym_eglDestroyImage(re->win->egl_disp, glsym_eglDestroyImage(re->win->egl_disp,
n->egl_surface); n->egl_surface);
if (eglGetError() != EGL_SUCCESS) if (eglGetError() != EGL_SUCCESS)
ERR("eglDestroyImage() failed."); ERR("eglDestroyImage() failed.");
} }
else else
ERR("Try eglDestroyImage on EGL with no support"); ERR("Try eglDestroyImage on EGL with no support");
} }
#else #else
# ifdef GLX_BIND_TO_TEXTURE_TARGETS_EXT # ifdef GLX_BIND_TO_TEXTURE_TARGETS_EXT
if (n->glx_pixmap) if (n->glx_pixmap)
{ {
if (im->native.loose) if (im->native.loose)
{ {
if (glsym_glXReleaseTexImage) if (glsym_glXReleaseTexImage)
{ {
glsym_glXReleaseTexImage(re->win->disp, n->glx_pixmap, glsym_glXReleaseTexImage(re->win->disp, n->glx_pixmap,
GLX_FRONT_LEFT_EXT); GLX_FRONT_LEFT_EXT);
GLERR(__FUNCTION__, __FILE__, __LINE__, ""); GLERR(__FUNCTION__, __FILE__, __LINE__, "");
} }
else else
ERR("Try glXReleaseTexImage on GLX with no support"); ERR("Try glXReleaseTexImage on GLX with no support");
} }
if (glsym_glXDestroyPixmap) if (glsym_glXDestroyPixmap)
{ {
glsym_glXDestroyPixmap(re->win->disp, n->glx_pixmap); glsym_glXDestroyPixmap(re->win->disp, n->glx_pixmap);
GLERR(__FUNCTION__, __FILE__, __LINE__, ""); GLERR(__FUNCTION__, __FILE__, __LINE__, "");
} }
else else
ERR("Try glXDestroyPixmap on GLX with no support"); ERR("Try glXDestroyPixmap on GLX with no support");
n->glx_pixmap = 0; n->glx_pixmap = 0;
} }
# endif # endif
#endif #endif
im->native.data = NULL; }
im->native.func.data = NULL; else if (n->ns.type == EVAS_NATIVE_SURFACE_OPENGL)
im->native.func.bind = NULL; {
im->native.func.unbind = NULL; // FIXME: implement
im->native.func.free = NULL; }
free(n); im->native.data = NULL;
im->native.func.data = NULL;
im->native.func.bind = NULL;
im->native.func.unbind = NULL;
im->native.func.free = NULL;
free(n);
} }
static void * static void *
eng_image_native_set(void *data, void *image, void *native) eng_image_native_set(void *data, void *image, void *native)
{ {
Render_Engine *re = (Render_Engine *)data; Render_Engine *re = (Render_Engine *)data;
Evas_Native_Surface *ns = native; Evas_Native_Surface *ns = native;
Evas_GL_Image *im = image, *im2 = NULL; Evas_GL_Image *im = image, *im2 = NULL;
Visual *vis = NULL; Visual *vis = NULL;
Pixmap pm = 0; Pixmap pm = 0;
Native *n = NULL; Native *n = NULL;
uint32_t pmid; uint32_t pmid;
if (!im) return NULL; if (!im) return NULL;
if (ns) if (ns)
{ {
vis = ns->data.x11.visual; if (ns->type == EVAS_NATIVE_SURFACE_X11)
pm = ns->data.x11.pixmap; {
if (im->native.data) vis = ns->data.x11.visual;
{ pm = ns->data.x11.pixmap;
Evas_Native_Surface *ens = im->native.data; if (im->native.data)
if ((ens->data.x11.visual == vis) && (ens->data.x11.pixmap == pm)) {
Evas_Native_Surface *ens = im->native.data;
if ((ens->data.x11.visual == vis) && (ens->data.x11.pixmap == pm))
return im; return im;
} }
} }
if ((!ns) && (!im->native.data)) return im; else if (ns->type == EVAS_NATIVE_SURFACE_OPENGL)
{
eng_window_use(re->win); // FIXME: implement
}
if (im->native.data) }
{ if ((!ns) && (!im->native.data)) return im;
if (im->native.func.free)
im->native.func.free(im->native.func.data, im); eng_window_use(re->win);
evas_gl_common_image_native_disable(im);
} if (im->native.data)
{
pmid = pm; if (im->native.func.free)
im2 = eina_hash_find(re->win->gl_context->shared->native_hash, &pmid); im->native.func.free(im->native.func.data, im);
if (im2 == im) return im; evas_gl_common_image_native_disable(im);
if (im2) }
{
n = im2->native.data; if (ns->type == EVAS_NATIVE_SURFACE_X11)
if (n) {
{ pmid = pm;
im2->references++; im2 = eina_hash_find(re->win->gl_context->shared->native_hash, &pmid);
evas_gl_common_image_free(im); if (im2 == im) return im;
return im2; if (im2)
} {
} n = im2->native.data;
im2 = evas_gl_common_image_new_from_data(re->win->gl_context, if (n)
im->w, im->h, NULL, im->alpha, {
EVAS_COLORSPACE_ARGB8888); im2->references++;
evas_gl_common_image_free(im); evas_gl_common_image_free(im);
im = im2; return im2;
}
}
}
else if (ns->type == EVAS_NATIVE_SURFACE_OPENGL)
{
// FIXME: implement
}
im2 = evas_gl_common_image_new_from_data(re->win->gl_context,
im->w, im->h, NULL, im->alpha,
EVAS_COLORSPACE_ARGB8888);
evas_gl_common_image_free(im);
im = im2;
if (ns->type == EVAS_NATIVE_SURFACE_X11)
{
#if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX) #if defined (GLES_VARIETY_S3C6410) || defined (GLES_VARIETY_SGX)
if (native) if (native)
{ {
n = calloc(1, sizeof(Native)); n = calloc(1, sizeof(Native));
if (n) if (n)
{ {
EGLConfig egl_config; EGLConfig egl_config;
int config_attrs[20]; int config_attrs[20];
int num_config, i = 0; int num_config, i = 0;
eina_hash_add(re->win->gl_context->shared->native_hash, &pmid, im); eina_hash_add(re->win->gl_context->shared->native_hash, &pmid, im);
config_attrs[i++] = EGL_RED_SIZE; config_attrs[i++] = EGL_RED_SIZE;
config_attrs[i++] = 8; config_attrs[i++] = 8;
config_attrs[i++] = EGL_GREEN_SIZE; config_attrs[i++] = EGL_GREEN_SIZE;
config_attrs[i++] = 8; config_attrs[i++] = 8;
config_attrs[i++] = EGL_BLUE_SIZE; config_attrs[i++] = EGL_BLUE_SIZE;
config_attrs[i++] = 8; config_attrs[i++] = 8;
config_attrs[i++] = EGL_ALPHA_SIZE; config_attrs[i++] = EGL_ALPHA_SIZE;
config_attrs[i++] = 8; config_attrs[i++] = 8;
config_attrs[i++] = EGL_DEPTH_SIZE; config_attrs[i++] = EGL_DEPTH_SIZE;
config_attrs[i++] = 0; config_attrs[i++] = 0;
config_attrs[i++] = EGL_STENCIL_SIZE; config_attrs[i++] = EGL_STENCIL_SIZE;
config_attrs[i++] = 0; config_attrs[i++] = 0;
config_attrs[i++] = EGL_RENDERABLE_TYPE; config_attrs[i++] = EGL_RENDERABLE_TYPE;
config_attrs[i++] = EGL_OPENGL_ES2_BIT; config_attrs[i++] = EGL_OPENGL_ES2_BIT;
config_attrs[i++] = EGL_SURFACE_TYPE; config_attrs[i++] = EGL_SURFACE_TYPE;
config_attrs[i++] = EGL_PIXMAP_BIT; config_attrs[i++] = EGL_PIXMAP_BIT;
config_attrs[i++] = EGL_NONE; config_attrs[i++] = EGL_NONE;
if (!eglChooseConfig(re->win->egl_disp, config_attrs, if (!eglChooseConfig(re->win->egl_disp, config_attrs,
&egl_config, 1, &num_config)) &egl_config, 1, &num_config))
ERR("eglChooseConfig() failed for pixmap 0x%x, num_config = %i", (unsigned int)pm, num_config); ERR("eglChooseConfig() failed for pixmap 0x%x, num_config = %i", (unsigned int)pm, num_config);
n->pixmap = pm; memcpy(&(n->ns), ns, sizeof(Evas_Native_Surface));
n->visual = vis; n->pixmap = pm;
if (glsym_eglCreateImage) n->visual = vis;
if (glsym_eglCreateImage)
n->egl_surface = glsym_eglCreateImage(re->win->egl_disp, n->egl_surface = glsym_eglCreateImage(re->win->egl_disp,
EGL_NO_CONTEXT, EGL_NO_CONTEXT,
EGL_NATIVE_PIXMAP_KHR, EGL_NATIVE_PIXMAP_KHR,
(void *)pm, (void *)pm,
NULL); NULL);
else else
ERR("Try eglCreateImage on EGL with no support"); ERR("Try eglCreateImage on EGL with no support");
if (!n->egl_surface) if (!n->egl_surface)
ERR("eglCreatePixmapSurface() for 0x%x failed", (unsigned int)pm); ERR("eglCreatePixmapSurface() for 0x%x failed", (unsigned int)pm);
im->native.yinvert = 1; im->native.yinvert = 1;
im->native.loose = 0; im->native.loose = 0;
im->native.data = n; im->native.data = n;
im->native.func.data = re; im->native.func.data = re;
im->native.func.bind = _native_bind_cb; im->native.func.bind = _native_bind_cb;
im->native.func.unbind = _native_unbind_cb; im->native.func.unbind = _native_unbind_cb;
im->native.func.free = _native_free_cb; im->native.func.free = _native_free_cb;
im->native.target = GL_TEXTURE_2D; im->native.target = GL_TEXTURE_2D;
im->native.mipmap = 0; im->native.mipmap = 0;
evas_gl_common_image_native_enable(im); evas_gl_common_image_native_enable(im);
} }
} }
#else #else
# ifdef GLX_BIND_TO_TEXTURE_TARGETS_EXT # ifdef GLX_BIND_TO_TEXTURE_TARGETS_EXT
if (native) if (native)
{ {
int dummy; int dummy;
unsigned int w, h, depth = 32, border; unsigned int w, h, depth = 32, border;
Window wdummy; Window wdummy;
// fixme: round trip :( // fixme: round trip :(
XGetGeometry(re->win->disp, pm, &wdummy, &dummy, &dummy, XGetGeometry(re->win->disp, pm, &wdummy, &dummy, &dummy,
&w, &h, &border, &depth); &w, &h, &border, &depth);
n = calloc(1, sizeof(Native)); n = calloc(1, sizeof(Native));
if (n) if (n)
{ {
int pixmap_att[20]; int pixmap_att[20];
unsigned int target = 0; unsigned int target = 0;
unsigned int i = 0; unsigned int i = 0;
eina_hash_add(re->win->gl_context->shared->native_hash, &pmid, im); eina_hash_add(re->win->gl_context->shared->native_hash, &pmid, im);
if ((re->win->depth_cfg[depth].tex_target & if ((re->win->depth_cfg[depth].tex_target &
GLX_TEXTURE_2D_BIT_EXT) GLX_TEXTURE_2D_BIT_EXT)
// && (1) // we assume npo2 for now // && (1) // we assume npo2 for now
// size is pow2 || mnpo2 supported // size is pow2 || mnpo2 supported
) )
target = GLX_TEXTURE_2D_EXT; target = GLX_TEXTURE_2D_EXT;
else if ((re->win->depth_cfg[depth].tex_target & else if ((re->win->depth_cfg[depth].tex_target &
GLX_TEXTURE_RECTANGLE_BIT_EXT)) GLX_TEXTURE_RECTANGLE_BIT_EXT))
{ {
ERR("rect!!! (not handled)"); ERR("rect!!! (not handled)");
target = GLX_TEXTURE_RECTANGLE_EXT; target = GLX_TEXTURE_RECTANGLE_EXT;
} }
if (!target) if (!target)
{ {
ERR("broken text-from-pixmap"); ERR("broken text-from-pixmap");
if (!(re->win->depth_cfg[depth].tex_target & if (!(re->win->depth_cfg[depth].tex_target &
GLX_TEXTURE_2D_BIT_EXT)) GLX_TEXTURE_2D_BIT_EXT))
target = GLX_TEXTURE_RECTANGLE_EXT; target = GLX_TEXTURE_RECTANGLE_EXT;
else if (!(re->win->depth_cfg[depth].tex_target & else if (!(re->win->depth_cfg[depth].tex_target &
GLX_TEXTURE_RECTANGLE_BIT_EXT)) GLX_TEXTURE_RECTANGLE_BIT_EXT))
target = GLX_TEXTURE_2D_EXT; target = GLX_TEXTURE_2D_EXT;
} }
pixmap_att[i++] = GLX_TEXTURE_FORMAT_EXT; pixmap_att[i++] = GLX_TEXTURE_FORMAT_EXT;
pixmap_att[i++] = re->win->depth_cfg[depth].tex_format; pixmap_att[i++] = re->win->depth_cfg[depth].tex_format;
pixmap_att[i++] = GLX_MIPMAP_TEXTURE_EXT; pixmap_att[i++] = GLX_MIPMAP_TEXTURE_EXT;
pixmap_att[i++] = re->win->depth_cfg[depth].mipmap; pixmap_att[i++] = re->win->depth_cfg[depth].mipmap;
if (target) if (target)
{ {
pixmap_att[i++] = GLX_TEXTURE_TARGET_EXT; pixmap_att[i++] = GLX_TEXTURE_TARGET_EXT;
pixmap_att[i++] = target; pixmap_att[i++] = target;
} }
pixmap_att[i++] = 0; pixmap_att[i++] = 0;
memcpy(&(n->ns), ns, sizeof(Evas_Native_Surface)); memcpy(&(n->ns), ns, sizeof(Evas_Native_Surface));
n->pixmap = pm; n->pixmap = pm;
n->visual = vis; n->visual = vis;
n->fbc = re->win->depth_cfg[depth].fbc; n->fbc = re->win->depth_cfg[depth].fbc;
if (glsym_glXCreatePixmap) if (glsym_glXCreatePixmap)
n->glx_pixmap = glsym_glXCreatePixmap(re->win->disp, n->glx_pixmap = glsym_glXCreatePixmap(re->win->disp,
n->fbc, n->fbc,
n->pixmap, n->pixmap,
pixmap_att); pixmap_att);
else else
ERR("Try glXCreatePixmap on GLX with no support"); ERR("Try glXCreatePixmap on GLX with no support");
if (n->glx_pixmap) if (n->glx_pixmap)
{ {
// printf("%p: new native texture for %x | %4i x %4i @ %2i = %p\n", // printf("%p: new native texture for %x | %4i x %4i @ %2i = %p\n",
// n, pm, w, h, depth, n->glx_pixmap); // n, pm, w, h, depth, n->glx_pixmap);
if (!target) if (!target)
{ {
ERR("no target :("); ERR("no target :(");
if (glsym_glXQueryDrawable) if (glsym_glXQueryDrawable)
glsym_glXQueryDrawable(re->win->disp, glsym_glXQueryDrawable(re->win->disp,
n->pixmap, n->pixmap,
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_TARGET_EXT,
&target); &target);
} }
if (target == GLX_TEXTURE_2D_EXT) if (target == GLX_TEXTURE_2D_EXT)
{ {
im->native.target = GL_TEXTURE_2D; im->native.target = GL_TEXTURE_2D;
im->native.mipmap = re->win->depth_cfg[depth].mipmap; im->native.mipmap = re->win->depth_cfg[depth].mipmap;
} }
# ifdef GL_TEXTURE_RECTANGLE_ARB # ifdef GL_TEXTURE_RECTANGLE_ARB
else if (target == GLX_TEXTURE_RECTANGLE_EXT) else if (target == GLX_TEXTURE_RECTANGLE_EXT)
{ {
im->native.target = GL_TEXTURE_RECTANGLE_ARB; im->native.target = GL_TEXTURE_RECTANGLE_ARB;
im->native.mipmap = 0; im->native.mipmap = 0;
} }
# endif # endif
else else
{ {
im->native.target = GL_TEXTURE_2D; im->native.target = GL_TEXTURE_2D;
im->native.mipmap = 0; im->native.mipmap = 0;
ERR("still unknown target"); ERR("still unknown target");
} }
} }
else else
ERR("GLX Pixmap create fail"); ERR("GLX Pixmap create fail");
im->native.yinvert = re->win->depth_cfg[depth].yinvert; im->native.yinvert = re->win->depth_cfg[depth].yinvert;
im->native.loose = re->win->detected.loose_binding; im->native.loose = re->win->detected.loose_binding;
im->native.data = n; im->native.data = n;
im->native.func.data = re; im->native.func.data = re;
im->native.func.bind = _native_bind_cb; im->native.func.bind = _native_bind_cb;
im->native.func.unbind = _native_unbind_cb; im->native.func.unbind = _native_unbind_cb;
im->native.func.free = _native_free_cb; im->native.func.free = _native_free_cb;
evas_gl_common_image_native_enable(im); evas_gl_common_image_native_enable(im);
} }
} }
# endif # endif
#endif #endif
}
else if (ns->type == EVAS_NATIVE_SURFACE_OPENGL)
{
// FIXME: implement
}
return im; return im;
} }