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Merged clutter-ivan branch into trunk.
svn merge \ https://svn.o-hand.com/repos/clutter/trunk/clutter@2509 \ https://svn.o-hand.com/repos/clutter/branches/clutter-ivan@HEAD
This commit is contained in:
Neil Roberts
188
clutter/cogl/gles/cogl-fbo.c
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188
clutter/cogl/gles/cogl-fbo.c
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/*
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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) 2007 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-internal.h"
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#include "cogl-util.h"
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#include "cogl-texture.h"
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#include "cogl-fbo.h"
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#include "cogl-context.h"
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/* Expecting EXT functions not to be defined - redirect to pointers in context */
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#define glGenRenderbuffersEXT ctx->pf_glGenRenderbuffersEXT
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#define glBindRenderbufferEXT ctx->pf_glBindRenderbufferEXT
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#define glRenderbufferStorageEXT ctx->pf_glRenderbufferStorageEXT
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#define glGenFramebuffersEXT ctx->pf_glGenFramebuffersEXT
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#define glBindFramebufferEXT ctx->pf_glBindFramebufferEXT
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#define glFramebufferTexture2DEXT ctx->pf_glFramebufferTexture2DEXT
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#define glFramebufferRenderbufferEXT ctx->pf_glFramebufferRenderbufferEXT
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#define glCheckFramebufferStatusEXT ctx->pf_glCheckFramebufferStatusEXT
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#define glDeleteFramebuffersEXT ctx->pf_glDeleteFramebuffersEXT
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#define glBlitFramebufferEXT ctx->pf_glBlitFramebufferEXT
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#define glRenderbufferStorageMultisampleEXT ctx->pf_glRenderbufferStorageMultisampleEXT
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static gint
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_cogl_fbo_handle_find (CoglHandle handle)
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{
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_COGL_GET_CONTEXT (ctx, -1);
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gint i;
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if (ctx->fbo_handles == NULL)
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return -1;
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for (i=0; i < ctx->fbo_handles->len; ++i)
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if (g_array_index (ctx->fbo_handles, CoglHandle, i) == handle)
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return i;
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return -1;
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}
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/*
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static CoglHandle
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_cogl_fbo_handle_new (CoglFbo *fbo)
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{
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_COGL_GET_CONTEXT (ctx, COGL_INVALID_HANDLE);
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CoglHandle handle = (CoglHandle)fbo;
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if (ctx->fbo_handles == NULL)
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ctx->fbo_handles = g_array_new (FALSE, FALSE, sizeof (CoglHandle));
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g_array_append_val (ctx->fbo_handles, handle);
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return handle;
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}
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static void
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_cogl_fbo_handle_release (CoglHandle handle)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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gint i;
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if ( (i = _cogl_fbo_handle_find (handle)) == -1)
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return;
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g_array_remove_index_fast (ctx->fbo_handles, i);
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}
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static CoglFbo*
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_cogl_fbo_pointer_from_handle (CoglHandle handle)
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{
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return (CoglFbo*) handle;
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}*/
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gboolean
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cogl_is_offscreen_buffer (CoglHandle handle)
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{
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if (handle == COGL_INVALID_HANDLE)
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return FALSE;
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return _cogl_fbo_handle_find (handle) >= 0;
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}
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CoglHandle
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cogl_offscreen_new_to_texture (CoglHandle texhandle)
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{
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return COGL_INVALID_HANDLE;
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}
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CoglHandle
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cogl_offscreen_new_multisample ()
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{
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return COGL_INVALID_HANDLE;
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}
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CoglHandle
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cogl_offscreen_ref (CoglHandle handle)
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{
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return COGL_INVALID_HANDLE;
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}
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void
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cogl_offscreen_unref (CoglHandle handle)
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{
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}
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void
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cogl_offscreen_blit_region (CoglHandle src_buffer,
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CoglHandle dst_buffer,
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int src_x,
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int src_y,
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int src_w,
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int src_h,
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int dst_x,
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int dst_y,
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int dst_w,
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int dst_h)
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{
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}
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void
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cogl_offscreen_blit (CoglHandle src_buffer,
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CoglHandle dst_buffer)
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{
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}
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void
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cogl_draw_buffer (CoglBufferTarget target, CoglHandle offscreen)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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switch (target)
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{
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case COGL_OFFSCREEN_BUFFER:
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/* Not supported */
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return;
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case COGL_WINDOW_BUFFER:
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/* Draw to RGB channels */
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GE( glColorMask (GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE) );
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break;
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case COGL_MASK_BUFFER:
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/* Draw only to ALPHA channel */
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GE( glColorMask (GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE) );
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break;
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case COGL_WINDOW_BUFFER & COGL_MASK_BUFFER:
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/* Draw to all channels */
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GE( glColorMask (GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE) );
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break;
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}
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/* Store new target */
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ctx->draw_buffer = target;
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}
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