/**************************************************************************/
/* copy_effects.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 */
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/**************************************************************************/
#pragma once
#ifdef GLES3_ENABLED
#include "drivers/gles3/shaders/effects/copy.glsl.gen.h"
namespace GLES3 {
class CopyEffects {
private:
struct Copy {
CopyShaderGLES3 shader;
RID shader_version;
} copy;
static CopyEffects *singleton;
// Use for full-screen effects. Slightly more efficient than screen_quad as this eliminates pixel overdraw along the diagonal.
GLuint screen_triangle = 0;
GLuint screen_triangle_array = 0;
// Use for rect-based effects.
GLuint quad = 0;
GLuint quad_array = 0;
public:
static CopyEffects *get_singleton();
CopyEffects();
~CopyEffects();
// These functions assume that a framebuffer and texture are bound already. They only manage the shader, uniforms, and vertex array.
void copy_to_rect(const Rect2 &p_rect, bool p_linear_to_srgb = false);
void copy_to_rect_3d(const Rect2 &p_rect, float p_layer, int p_type, float p_lod = 0.0f, bool p_linear_to_srgb = false);
void copy_with_lens_distortion(const Rect2 &p_rect, float p_layer, const Vector2 &p_eye_center, float p_k1, float p_k2, float p_upscale, float p_aspect_ration, bool p_linear_to_srgb = false);
void copy_to_and_from_rect(const Rect2 &p_rect);
void copy_screen(float p_multiply = 1.0);
void copy_with_exposure(float p_exposure, float p_multiply);
void copy_cube_to_rect(const Rect2 &p_rect);
void copy_cube_to_panorama(float p_mip_level);
void bilinear_blur(GLuint p_source_texture, int p_mipmap_count, const Rect2i &p_region);
void gaussian_blur(GLuint p_source_texture, int p_mipmap_count, const Rect2i &p_region, const Size2i &p_size);
void set_color(const Color &p_color, const Rect2i &p_region);
void draw_screen_triangle();
void draw_screen_quad();
};
} //namespace GLES3
#endif // GLES3_ENABLED