mutter/clutter/cogl/common/cogl-handle.h

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Removed COGLhandle and changed shader and program functions to be wrapped in reference-counted CoglHandles instead. * clutter/cogl/gl/cogl-shader.c: * clutter/cogl/gl/cogl-shader.h: * clutter/cogl/gl/cogl-program.c: * clutter/cogl/gl/cogl-program.h: New files to hold the shader and program functions. * clutter/cogl/gl/cogl.c: Removed shader and program functions. * clutter/cogl/common/cogl-handle.h: New header to define COGL_HANDLE_DEFINE which helps build functions to create reference-counted handles. This reduces the amount of duplicated code. * clutter/cogl/gl/cogl-texture.c: * clutter/cogl/gles/cogl-texture.c: * clutter/cogl/gl/cogl-fbo.c: Converted to use COGL_HANDLE_DEFINE from cogl-handle.h to avoid duplicating some of the common code. * clutter/cogl/gles/cogl-defines.h.in: * clutter/cogl/gl/cogl-defines.h.in: Removed COGLhandle * clutter/cogl/gl/cogl-context.h: Added handle arrays for programs and shaders. * clutter/cogl/gl/cogl-context.c (cogl_create_context): Added initialisers for shader_handles and program_handles. (cogl_destroy_context): Added calls to g_array_free for all handle arrays. * clutter/cogl/gl/Makefile.am (libclutter_cogl_la_SOURCES): Added cogl-{program,shader}.{c,h} * clutter/cogl/common/Makefile.am (libclutter_cogl_common_la_SOURCES): Added cogl-handle.h * clutter/cogl/gles/cogl.c: * clutter/cogl/cogl.h.in: Programs and shaders are now wrapped in CoglHandles instead of COGLhandles. cogl_program_destroy and cogl_shader_destroy is now replaced with cogl_program_unref and cogl_shader_unref. cogl_program_ref and cogl_shader_ref are also added. * clutter/clutter-shader.c: Converted to use CoglHandles for the programs and shaders instead of COGLhandles. * cogl/cogl-sections.txt: Added cogl_shader_ref, cogl_shader_unref, cogl_is_shader, cogl_program_ref, cogl_program_unref, cogl_is_program and cogl_is_offscreen.
2008-04-29 12:10:37 -04:00
/*
* Clutter COGL
*
* A basic GL/GLES Abstraction/Utility Layer
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2008 OpenedHand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COGL_HANDLE_H
#define __COGL_HANDLE_H
/* Helper macro to encapsulate the common code for COGL reference
counted handles */
#if COGL_DEBUG
#define COGL_HANDLE_DEBUG_NEW(type_name, obj) \
printf ("COGL " G_STRINGIFY (type_name) " NEW %p %i\n", \
(obj), (obj)->ref_count)
#define COGL_HANDLE_DEBUG_REF(type_name, obj) \
printf ("COGL " G_STRINGIFY (type_name) " REF %p %i\n", \
(obj), (obj)->ref_count)
#define COGL_HANDLE_DEBUG_UNREF(type_name, obj) \
printf ("COGL " G_STRINGIFY (type_name) " UNREF %p %i\n", \
(obj), (obj)->ref_count - 1)
#define COGL_HANDLE_DEBUG_FREE(type_name, obj) \
printf ("COGL " G_STRINGIFY (type_name) " FREE %p\n", (obj))
#else /* COGL_DEBUG */
#define COGL_HANDLE_DEBUG_NEW(type_name, obj) (void) 0
#define COGL_HANDLE_DEBUG_REF(type_name, obj) (void) 0
#define COGL_HANDLE_DEBUG_UNREF(type_name, obj) (void) 0
#define COGL_HANDLE_DEBUG_FREE(type_name, obj) (void) 0
#endif /* COGL_DEBUG */
#define COGL_HANDLE_DEFINE(TypeName, type_name, handle_array) \
\
static gint \
_cogl_##type_name##_handle_find (CoglHandle handle) \
{ \
_COGL_GET_CONTEXT (ctx, -1); \
\
gint i; \
\
if (ctx->handle_array == NULL) \
return -1; \
\
for (i=0; i < ctx->handle_array->len; ++i) \
if (g_array_index (ctx->handle_array, \
CoglHandle, i) == handle) \
return i; \
\
return -1; \
} \
\
static CoglHandle \
_cogl_##type_name##_handle_new (Cogl##TypeName *obj) \
{ \
_COGL_GET_CONTEXT (ctx, COGL_INVALID_HANDLE); \
\
CoglHandle handle = (CoglHandle) obj; \
\
if (ctx->handle_array == NULL) \
ctx->handle_array \
= g_array_new (FALSE, FALSE, sizeof (CoglHandle)); \
\
g_array_append_val (ctx->handle_array, handle); \
\
return handle; \
} \
\
static void \
_cogl_##type_name##_handle_release (CoglHandle handle) \
{ \
_COGL_GET_CONTEXT (ctx, NO_RETVAL); \
\
gint i; \
\
if ( (i = _cogl_##type_name##_handle_find (handle)) == -1) \
return; \
\
g_array_remove_index_fast (ctx->handle_array, i); \
} \
\
Cogl##TypeName * \
_cogl_##type_name##_pointer_from_handle (CoglHandle handle) \
{ \
return (Cogl##TypeName *) handle; \
} \
\
gboolean \
cogl_is_##type_name (CoglHandle handle) \
{ \
if (handle == COGL_INVALID_HANDLE) \
return FALSE; \
\
return _cogl_##type_name##_handle_find (handle) >= 0; \
} \
\
CoglHandle \
cogl_##type_name##_ref (CoglHandle handle) \
{ \
Cogl##TypeName *obj; \
\
if (!cogl_is_##type_name (handle)) \
return COGL_INVALID_HANDLE; \
\
obj = _cogl_##type_name##_pointer_from_handle (handle); \
\
obj->ref_count++; \
\
COGL_HANDLE_DEBUG_REF (type_name, obj); \
\
return handle; \
} \
\
void \
cogl_##type_name##_unref (CoglHandle handle) \
{ \
Cogl##TypeName *obj; \
\
if (!cogl_is_##type_name (handle)) \
return; \
\
obj = _cogl_##type_name##_pointer_from_handle (handle); \
\
COGL_HANDLE_DEBUG_UNREF (type_name, obj); \
\
if (--obj->ref_count < 1) \
{ \
COGL_HANDLE_DEBUG_FREE (type_name, obj); \
\
_cogl_##type_name##_handle_release (obj); \
_cogl_##type_name##_free (obj); \
} \
}
#endif /* __COGL_HANDLE_H */