Jesse Yurkovich
7413c2feed
Currently whenever gl queries are performed for the viewport, a large 1024 byte array is allocated to store the query results (256 of them). Unfortunately, if any gizmo using a `draw_select` callback is active (e.g. the transform gizmos), these queries (and allocations) will occur during every mouse move event. Change the vector to allow for up to 16 query results before making an allocation. This provides enough space for every built-in gizmo except Scale Cage (which needs 27 queries). It also removes unnecessary allocations from two other related vectors used during query processing. Differential Revision: https://developer.blender.org/D13784
54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2020 Blender Foundation. All rights reserved. */
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/** \file
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* \ingroup gpu
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*/
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#pragma once
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#include "BLI_vector.hh"
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#include "gpu_query.hh"
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#include "glew-mx.h"
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namespace blender::gpu {
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class GLQueryPool : public QueryPool {
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private:
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/** Contains queries object handles. */
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Vector<GLuint, QUERY_MIN_LEN> query_ids_;
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/** Type of this query pool. */
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GPUQueryType type_;
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/** Associated GL type. */
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GLenum gl_type_;
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/** Number of queries that have been issued since last initialization.
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* Should be equal to query_ids_.size(). */
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uint32_t query_issued_;
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/** Can only be initialized once. */
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bool initialized_ = false;
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public:
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~GLQueryPool();
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void init(GPUQueryType type) override;
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void begin_query() override;
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void end_query() override;
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void get_occlusion_result(MutableSpan<uint32_t> r_values) override;
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};
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static inline GLenum to_gl(GPUQueryType type)
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{
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if (type == GPU_QUERY_OCCLUSION) {
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/* TODO(fclem): try with GL_ANY_SAMPLES_PASSED. */
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return GL_SAMPLES_PASSED;
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}
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BLI_assert(0);
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return GL_SAMPLES_PASSED;
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}
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} // namespace blender::gpu
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