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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2013 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Jason Wilkins.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file source/blender/gpu/intern/gpu_select.c
* \ingroup gpu
*/
#if WITH_GL_PROFILE_COMPAT
#define GPU_MANGLE_DEPRECATED 0 /* Allow use of deprecated OpenGL functions in this file */
#endif
/* my interface */
#include "intern/gpu_select_intern.h"
/* my library */
#include "GPU_safety.h"
/* internal */
#include "intern/gpu_matrix_intern.h"
#include "intern/gpu_aspect_intern.h"
/* external */
#include "BLI_utildefines.h"
static bool IS_SELECT_MODE = false;
void gpu_select_init(void)
{
IS_SELECT_MODE = false;
}
void gpu_select_exit(void)
{
}
bool gpu_default_select_begin(const void* UNUSED(object), void* UNUSED(param))
{
#if defined(WITH_GPU_PROFILE_COMPAT)
return true; /* nothing to do, allow this pass to start */
#else
return false; /* not implemented, so cancel this pass before it starts if possible */
#endif
}
bool gpu_default_select_end(const void* UNUSED(object), void* UNUSED(param))
{
return true; /* only one pass, 'true' means 'done' */
}
bool gpu_default_select_commit(const void* UNUSED(object))
{
#if defined(WITH_GPU_PROFILE_COMPAT)
gpu_set_common(NULL);
gpu_glUseProgram(0);
gpu_commit_matrix();
return true;
#else
return false; /* cancel drawing, since select mode isn't implemented */
#endif
}
bool gpu_is_select_mode(void)
{
return IS_SELECT_MODE;
}
void GPU_select_buffer(GLsizei size, GLuint* buffer)
{
GPU_ASSERT(!IS_SELECT_MODE);
if (!IS_SELECT_MODE) {
#if defined(WITH_GL_PROFILE_COMPAT)
glSelectBuffer(size, buffer);
#endif
}
}
void GPU_select_begin(void)
{
GPU_ASSERT(!gpu_aspect_active());
GPU_ASSERT(!IS_SELECT_MODE);
IS_SELECT_MODE = true;
#if defined(WITH_GL_PROFILE_COMPAT)
glRenderMode(GL_SELECT);
#endif
}
GLsizei GPU_select_end(void)
{
GPU_ASSERT(!gpu_aspect_active());
GPU_ASSERT(IS_SELECT_MODE);
IS_SELECT_MODE = false;
#if defined(WITH_GL_PROFILE_COMPAT)
return glRenderMode(GL_RENDER);
#else
return 0;
#endif
}
void GPU_select_clear(void)
{
if (IS_SELECT_MODE) {
#if defined(WITH_GL_PROFILE_COMPAT)
glInitNames();
#endif
}
}
void GPU_select_pop(void)
{
if (IS_SELECT_MODE) {
#if defined(WITH_GL_PROFILE_COMPAT)
glPopName();
#endif
}
}
void GPU_select_push(GLuint name)
{
if (IS_SELECT_MODE) {
#if defined(WITH_GL_PROFILE_COMPAT)
glPushName(name);
#endif
}
}
void GPU_select_load(GLuint name)
{
if (IS_SELECT_MODE) {
#if defined(WITH_GL_PROFILE_COMPAT)
glLoadName(name);
#endif
}
}
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