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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2020 Blender Foundation. All rights reserved. */
/** \file
* \ingroup gpu
*/
#pragma once
#include "BLI_vector.hh"
#include "gpu_query.hh"
#include <epoxy/gl.h>
namespace blender::gpu {
class GLQueryPool : public QueryPool {
private:
/** Contains queries object handles. */
Vector<GLuint, QUERY_MIN_LEN> 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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