godot/drivers/gles3/storage/utilities.h
clayjohn aca964de4f Add OpenGL timer queries to OpenGL3 backend
This is useful for the visual debugger, printing FPS, and the in-editor FPS display
2022-10-07 09:25:09 -07:00

133 lines
5.4 KiB
C++

/*************************************************************************/
/* utilities.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef UTILITIES_GLES3_H
#define UTILITIES_GLES3_H
#ifdef GLES3_ENABLED
#include "servers/rendering/storage/utilities.h"
#include "platform_config.h"
#ifndef OPENGL_INCLUDE_H
#include <GLES3/gl3.h>
#else
#include OPENGL_INCLUDE_H
#endif
namespace GLES3 {
class Utilities : public RendererUtilities {
private:
static Utilities *singleton;
public:
static Utilities *get_singleton() { return singleton; }
Utilities();
~Utilities();
// Buffer size is specified in bytes
static Vector<uint8_t> buffer_get_data(GLenum p_target, GLuint p_buffer, uint32_t p_buffer_size);
/* INSTANCES */
virtual RS::InstanceType get_base_type(RID p_rid) const override;
virtual bool free(RID p_rid) override;
/* DEPENDENCIES */
virtual void base_update_dependency(RID p_base, DependencyTracker *p_instance) override;
/* VISIBILITY NOTIFIER */
virtual RID visibility_notifier_allocate() override;
virtual void visibility_notifier_initialize(RID p_notifier) override;
virtual void visibility_notifier_free(RID p_notifier) override;
virtual void visibility_notifier_set_aabb(RID p_notifier, const AABB &p_aabb) override;
virtual void visibility_notifier_set_callbacks(RID p_notifier, const Callable &p_enter_callbable, const Callable &p_exit_callable) override;
virtual AABB visibility_notifier_get_aabb(RID p_notifier) const override;
virtual void visibility_notifier_call(RID p_notifier, bool p_enter, bool p_deferred) override;
/* TIMING */
#define MAX_QUERIES 256
#define FRAME_COUNT 3
struct Frame {
GLuint queries[MAX_QUERIES];
TightLocalVector<String> timestamp_names;
TightLocalVector<uint64_t> timestamp_cpu_values;
uint32_t timestamp_count = 0;
TightLocalVector<String> timestamp_result_names;
TightLocalVector<uint64_t> timestamp_cpu_result_values;
TightLocalVector<uint64_t> timestamp_result_values;
uint32_t timestamp_result_count = 0;
uint64_t index = 0;
};
const uint32_t max_timestamp_query_elements = MAX_QUERIES;
Frame frames[FRAME_COUNT]; // Frames for capturing timestamps. We use 3 so we don't need to wait for commands to complete
uint32_t frame = 0;
virtual void capture_timestamps_begin() override;
virtual void capture_timestamp(const String &p_name) override;
virtual uint32_t get_captured_timestamps_count() const override;
virtual uint64_t get_captured_timestamps_frame() const override;
virtual uint64_t get_captured_timestamp_gpu_time(uint32_t p_index) const override;
virtual uint64_t get_captured_timestamp_cpu_time(uint32_t p_index) const override;
virtual String get_captured_timestamp_name(uint32_t p_index) const override;
void _capture_timestamps_begin();
void capture_timestamps_end();
/* MISC */
virtual void update_dirty_resources() override;
virtual void set_debug_generate_wireframes(bool p_generate) override;
virtual bool has_os_feature(const String &p_feature) const override;
virtual void update_memory_info() override;
virtual uint64_t get_rendering_info(RS::RenderingInfo p_info) override;
virtual String get_video_adapter_name() const override;
virtual String get_video_adapter_vendor() const override;
virtual RenderingDevice::DeviceType get_video_adapter_type() const override;
virtual String get_video_adapter_api_version() const override;
};
} // namespace GLES3
#endif // GLES3_ENABLED
#endif // UTILITIES_GLES3_H