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-rw-r--r--drivers/gles3/effects/SCsub5
-rw-r--r--drivers/gles3/effects/copy_effects.cpp164
-rw-r--r--drivers/gles3/effects/copy_effects.h73
3 files changed, 242 insertions, 0 deletions
diff --git a/drivers/gles3/effects/SCsub b/drivers/gles3/effects/SCsub
new file mode 100644
index 0000000000..91e1140b75
--- /dev/null
+++ b/drivers/gles3/effects/SCsub
@@ -0,0 +1,5 @@
+#!/usr/bin/env python
+
+Import("env")
+
+env.add_source_files(env.drivers_sources, "*.cpp")
diff --git a/drivers/gles3/effects/copy_effects.cpp b/drivers/gles3/effects/copy_effects.cpp
new file mode 100644
index 0000000000..c8e6c2b476
--- /dev/null
+++ b/drivers/gles3/effects/copy_effects.cpp
@@ -0,0 +1,164 @@
+/*************************************************************************/
+/* copy_effects.cpp */
+/*************************************************************************/
+/* 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. */
+/*************************************************************************/
+
+#ifdef GLES3_ENABLED
+
+#include "copy_effects.h"
+
+using namespace GLES3;
+
+CopyEffects *CopyEffects::singleton = nullptr;
+
+CopyEffects *CopyEffects::get_singleton() {
+ return singleton;
+}
+
+CopyEffects::CopyEffects() {
+ singleton = this;
+
+ copy.shader.initialize();
+ copy.shader_version = copy.shader.version_create();
+ copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_DEFAULT);
+
+ { // Screen Triangle.
+ glGenBuffers(1, &screen_triangle);
+ glBindBuffer(GL_ARRAY_BUFFER, screen_triangle);
+
+ const float qv[6] = {
+ -1.0f,
+ -1.0f,
+ 3.0f,
+ -1.0f,
+ -1.0f,
+ 3.0f,
+ };
+
+ glBufferData(GL_ARRAY_BUFFER, sizeof(float) * 6, qv, GL_STATIC_DRAW);
+ glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
+
+ glGenVertexArrays(1, &screen_triangle_array);
+ glBindVertexArray(screen_triangle_array);
+ glBindBuffer(GL_ARRAY_BUFFER, screen_triangle);
+ glVertexAttribPointer(RS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 2, nullptr);
+ glEnableVertexAttribArray(RS::ARRAY_VERTEX);
+ glBindVertexArray(0);
+ glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
+ }
+
+ { // Screen Quad
+
+ glGenBuffers(1, &quad);
+ glBindBuffer(GL_ARRAY_BUFFER, quad);
+
+ const float qv[12] = {
+ -1.0f,
+ -1.0f,
+ 1.0f,
+ -1.0f,
+ 1.0f,
+ 1.0f,
+ -1.0f,
+ -1.0f,
+ 1.0f,
+ 1.0f,
+ -1.0f,
+ 1.0f,
+ };
+
+ glBufferData(GL_ARRAY_BUFFER, sizeof(float) * 12, qv, GL_STATIC_DRAW);
+ glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
+
+ glGenVertexArrays(1, &quad_array);
+ glBindVertexArray(quad_array);
+ glBindBuffer(GL_ARRAY_BUFFER, quad);
+ glVertexAttribPointer(RS::ARRAY_VERTEX, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 2, nullptr);
+ glEnableVertexAttribArray(RS::ARRAY_VERTEX);
+ glBindVertexArray(0);
+ glBindBuffer(GL_ARRAY_BUFFER, 0); //unbind
+ }
+}
+
+CopyEffects::~CopyEffects() {
+ singleton = nullptr;
+ glDeleteBuffers(1, &screen_triangle);
+ glDeleteVertexArrays(1, &screen_triangle_array);
+ glDeleteBuffers(1, &quad);
+ glDeleteVertexArrays(1, &quad_array);
+}
+
+void CopyEffects::copy_to_rect(const Rect2i &p_rect) {
+ copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_COPY_SECTION);
+ copy.shader.version_set_uniform(CopyShaderGLES3::COPY_SECTION, p_rect.position.x, p_rect.position.y, p_rect.size.x, p_rect.size.y, copy.shader_version, CopyShaderGLES3::MODE_COPY_SECTION);
+ glBindVertexArray(quad_array);
+ glDrawArrays(GL_TRIANGLES, 0, 6);
+ glBindVertexArray(0);
+}
+
+void CopyEffects::copy_screen() {
+ copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_DEFAULT);
+ glBindVertexArray(screen_triangle_array);
+ glDrawArrays(GL_TRIANGLES, 0, 3);
+ glBindVertexArray(0);
+}
+
+void CopyEffects::bilinear_blur(GLuint p_source_texture, int p_mipmap_count, const Rect2i &p_region) {
+ GLuint framebuffers[2];
+ glGenFramebuffers(2, framebuffers);
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, framebuffers[0]);
+ glFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, p_source_texture, 0);
+
+ Rect2i source_region = p_region;
+ Rect2i dest_region = p_region;
+ for (int i = 1; i < p_mipmap_count; i++) {
+ dest_region.position.x >>= 1;
+ dest_region.position.y >>= 1;
+ dest_region.size.x = MAX(1, dest_region.size.x >> 1);
+ dest_region.size.y = MAX(1, dest_region.size.y >> 1);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffers[i % 2]);
+ glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, p_source_texture, i);
+ glBlitFramebuffer(source_region.position.x, source_region.position.y, source_region.size.x, source_region.size.y,
+ dest_region.position.x, dest_region.position.y, dest_region.size.x, dest_region.size.y, GL_COLOR_BUFFER_BIT, GL_LINEAR);
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, framebuffers[i % 2]);
+ source_region = dest_region;
+ }
+ glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
+ glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+ glDeleteFramebuffers(2, framebuffers);
+}
+
+void CopyEffects::set_color(const Color &p_color, const Rect2i &p_region) {
+ copy.shader.version_bind_shader(copy.shader_version, CopyShaderGLES3::MODE_SIMPLE_COLOR);
+ copy.shader.version_set_uniform(CopyShaderGLES3::COPY_SECTION, p_region.position.x, p_region.position.y, p_region.size.x, p_region.size.y, copy.shader_version, CopyShaderGLES3::MODE_SIMPLE_COLOR);
+ copy.shader.version_set_uniform(CopyShaderGLES3::COLOR_IN, p_color, copy.shader_version, CopyShaderGLES3::MODE_SIMPLE_COLOR);
+ glBindVertexArray(quad_array);
+ glDrawArrays(GL_TRIANGLES, 0, 6);
+ glBindVertexArray(0);
+}
+#endif // GLES3_ENABLED
diff --git a/drivers/gles3/effects/copy_effects.h b/drivers/gles3/effects/copy_effects.h
new file mode 100644
index 0000000000..1cf1ac9404
--- /dev/null
+++ b/drivers/gles3/effects/copy_effects.h
@@ -0,0 +1,73 @@
+/*************************************************************************/
+/* copy_effects.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 COPY_GL_H
+#define COPY_GL_H
+
+#ifdef GLES3_ENABLED
+
+#include "../shaders/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 Rect2i &p_rect);
+ void copy_screen();
+ void bilinear_blur(GLuint p_source_texture, int p_mipmap_count, const Rect2i &p_region);
+ void set_color(const Color &p_color, const Rect2i &p_region);
+};
+
+} //namespace GLES3
+
+#endif // GLES3_ENABLED
+#endif // !COPY_GL_H
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