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1bcdf7d9eb
Bug 1219 - Clean up cogl.h * clutter/cogl/cogl.h.in: * clutter/cogl/cogl-offscreen.h: * clutter/cogl/cogl-path.h: * clutter/cogl/cogl-shader.h: * clutter/cogl/cogl-texture.h: * clutter/cogl/cogl-types.h: Split up the massive cogl.h file into sub-header for each section of the API. * clutter/cogl/gl/*: * clutter/cogl/gles/*: Update the GL and GLES implementations of COGL to cope with the new header structure. * doc/reference/cogl/Makefile.am: Fix symbol retrieval.
151 lines
3.9 KiB
C
151 lines
3.9 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-program.h"
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#include "cogl-shader-private.h"
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#include "cogl-internal.h"
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#include "cogl-handle.h"
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#include "cogl-context.h"
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#include <glib.h>
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/* Expecting ARB functions not to be defined */
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#define glCreateProgramObjectARB ctx->pf_glCreateProgramObjectARB
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#define glAttachObjectARB ctx->pf_glAttachObjectARB
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#define glUseProgramObjectARB ctx->pf_glUseProgramObjectARB
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#define glLinkProgramARB ctx->pf_glLinkProgramARB
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#define glGetUniformLocationARB ctx->pf_glGetUniformLocationARB
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#define glUniform1fARB ctx->pf_glUniform1fARB
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#define glDeleteObjectARB ctx->pf_glDeleteObjectARB
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static void _cogl_program_free (CoglProgram *program);
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COGL_HANDLE_DEFINE (Program, program, program_handles);
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static void
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_cogl_program_free (CoglProgram *program)
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{
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/* Frees program 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 (program->gl_handle);
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}
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CoglHandle
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cogl_create_program (void)
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{
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CoglProgram *program;
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_COGL_GET_CONTEXT (ctx, 0);
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program = g_slice_new (CoglProgram);
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program->ref_count = 1;
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program->gl_handle = glCreateProgramObjectARB ();
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COGL_HANDLE_DEBUG_NEW (program, program);
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return _cogl_program_handle_new (program);
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}
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void
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cogl_program_attach_shader (CoglHandle program_handle,
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CoglHandle shader_handle)
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{
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CoglProgram *program;
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CoglShader *shader;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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if (!cogl_is_program (program_handle) || !cogl_is_shader (shader_handle))
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return;
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program = _cogl_program_pointer_from_handle (program_handle);
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shader = _cogl_shader_pointer_from_handle (shader_handle);
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glAttachObjectARB (program->gl_handle, shader->gl_handle);
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}
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void
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cogl_program_link (CoglHandle handle)
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{
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CoglProgram *program;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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if (!cogl_is_program (handle))
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return;
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program = _cogl_program_pointer_from_handle (handle);
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glLinkProgramARB (program->gl_handle);
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}
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void
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cogl_program_use (CoglHandle handle)
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{
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CoglProgram *program;
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GLhandleARB gl_handle;
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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if (handle != COGL_INVALID_HANDLE && !cogl_is_program (handle))
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return;
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if (handle == COGL_INVALID_HANDLE)
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gl_handle = 0;
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else
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{
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program = _cogl_program_pointer_from_handle (handle);
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gl_handle = program->gl_handle;
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}
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glUseProgramObjectARB (gl_handle);
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}
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COGLint
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cogl_program_get_uniform_location (CoglHandle handle,
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const gchar *uniform_name)
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{
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CoglProgram *program;
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_COGL_GET_CONTEXT (ctx, 0);
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if (!cogl_is_program (handle))
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return 0;
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program = _cogl_program_pointer_from_handle (handle);
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return glGetUniformLocationARB (program->gl_handle, uniform_name);
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}
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void
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cogl_program_uniform_1f (COGLint uniform_no,
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gfloat value)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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glUniform1fARB (uniform_no, value);
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}
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