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c3d9f0bed4
The cogl_is_* functions were showing up quite high on profiles due to
iterating through arrays of cogl handles.
This does away with all the handle arrays and implements a simple struct
inheritance scheme. All cogl objects now add a CoglHandleObject _parent;
member to their main structures. The base object includes 2 members a.t.m; a
ref_count, and a klass pointer. The klass in turn gives you a type and
virtual function for freeing objects of that type.
Each handle type has a _cogl_##handle_type##_get_type () function
automatically defined which returns a GQuark of the handle type, so now
implementing the cogl_is_* funcs is just a case of comparing with
obj->klass->type.
Another outcome of the re-work is that cogl_handle_{ref,unref} are also much
more efficient, and no longer need extending for each handle type added to
cogl. The cogl_##handle_type##_{ref,unref} functions are now deprecated and
are no longer used internally to Clutter or Cogl. Potentially we can remove
them completely before 1.0.
134 lines
3.4 KiB
C
134 lines
3.4 KiB
C
/*
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* Clutter COGL
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*
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* A basic GL/GLES Abstraction/Utility Layer
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2008 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "cogl.h"
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#include "cogl-shader-private.h"
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#include "cogl-internal.h"
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#include "cogl-context.h"
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#include "cogl-handle.h"
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#include <glib.h>
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/* Expecting ARB functions not to be defined */
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#define glCreateShaderObjectARB ctx->pf_glCreateShaderObjectARB
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#define glGetObjectParameterivARB ctx->pf_glGetObjectParameterivARB
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#define glGetInfoLogARB ctx->pf_glGetInfoLogARB
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#define glCompileShaderARB ctx->pf_glCompileShaderARB
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#define glShaderSourceARB ctx->pf_glShaderSourceARB
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#define glDeleteObjectARB ctx->pf_glDeleteObjectARB
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static void _cogl_shader_free (CoglShader *shader);
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COGL_HANDLE_DEFINE (Shader, shader);
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static void
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_cogl_shader_free (CoglShader *shader)
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{
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/* Frees shader resources but its handle is not
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released! Do that separately before this! */
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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glDeleteObjectARB (shader->gl_handle);
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}
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CoglHandle
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cogl_create_shader (COGLenum shaderType)
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{
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CoglShader *shader;
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_COGL_GET_CONTEXT (ctx, 0);
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shader = g_slice_new (CoglShader);
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shader->gl_handle = glCreateShaderObjectARB (shaderType);
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return _cogl_shader_handle_new (shader);
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}
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void
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cogl_shader_source (CoglHandle handle,
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const gchar *source)
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{
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CoglShader *shader;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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if (!cogl_is_shader (handle))
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return;
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shader = _cogl_shader_pointer_from_handle (handle);
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glShaderSourceARB (shader->gl_handle, 1, &source, NULL);
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}
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void
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cogl_shader_compile (CoglHandle handle)
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{
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CoglShader *shader;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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if (!cogl_is_shader (handle))
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return;
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shader = _cogl_shader_pointer_from_handle (handle);
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glCompileShaderARB (shader->gl_handle);
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}
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void
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cogl_shader_get_info_log (CoglHandle handle,
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guint size,
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gchar *buffer)
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{
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CoglShader *shader;
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COGLint len;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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if (!cogl_is_shader (handle))
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return;
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shader = _cogl_shader_pointer_from_handle (handle);
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glGetInfoLogARB (shader->gl_handle, size-1, &len, buffer);
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buffer[len]='\0';
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}
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void
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cogl_shader_get_parameteriv (CoglHandle handle,
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COGLenum pname,
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COGLint *dest)
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{
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CoglShader *shader;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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if (!cogl_is_shader (handle))
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return;
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shader = _cogl_shader_pointer_from_handle (handle);
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glGetObjectParameterivARB (shader->gl_handle, pname, dest);
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}
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