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/*
* 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.
*
* Copyright 2020, Blender Foundation.
*/
/** \file
* \ingroup gpu
*/
#include "MEM_guardedalloc.h"
#include "BLI_utildefines.h"
#include "gpu_state_private.hh"
#include "glew-mx.h"
namespace blender {
namespace gpu {
class GLStateManager : public GPUStateManager {
private:
/** Current state of the GL implementation. Avoids resetting the whole state for every change. */
GPUState current_;
GPUStateMutable current_mutable_;
public:
GLStateManager();
void set_state(const GPUState &state) override;
void set_mutable_state(const GPUStateMutable &state) override;
private:
static void set_write_mask(const eGPUWriteMask value);
static void set_depth_test(const eGPUDepthTest value);
static void set_stencil_test(const eGPUStencilTest test, const eGPUStencilOp operation);
static void set_stencil_mask(const eGPUStencilTest test, const GPUStateMutable state);
static void set_clip_distances(const int new_dist_len, const int old_dist_len);
static void set_logic_op(const bool enable);
static void set_facing(const bool invert);
static void set_backface_culling(const eGPUFaceCullTest test);
static void set_provoking_vert(const eGPUProvokingVertex vert);
static void set_shadow_bias(const bool enable);
static void set_blend(const eGPUBlend value);
MEM_CXX_CLASS_ALLOC_FUNCS("GLStateManager")
};
} // namespace gpu
} // namespace blender
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