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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.
* All rights reserved.
*/
/** \file
* \ingroup gpu
*/
#pragma once
#include "BLI_vector.hh"
#include "gpu_query.hh"
#include "glew-mx.h"
namespace blender::gpu {
class GLQueryPool : public QueryPool {
private:
/** Contains queries object handles. */
Vector<GLuint> query_ids_;
/** Type of this query pool. */
GPUQueryType type_;
/** Associated GL type. */
GLenum gl_type_;
/** Number of queries that have been issued since last initialization.
* Should be equal to query_ids_.size(). */
uint32_t query_issued_;
/** Can only be initialized once. */
bool initialized_ = false;
public:
~GLQueryPool();
void init(GPUQueryType type) override;
void begin_query() override;
void end_query() override;
void get_occlusion_result(MutableSpan<uint32_t> r_values) override;
};
static inline GLenum to_gl(GPUQueryType type)
{
if (type == GPU_QUERY_OCCLUSION) {
/* TODO(fclem): try with GL_ANY_SAMPLES_PASSED. */
return GL_SAMPLES_PASSED;
}
BLI_assert(0);
return GL_SAMPLES_PASSED;
}
} // namespace blender::gpu
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