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Diffstat (limited to 'drivers/gles3/effects/feed_effects.cpp')
| -rw-r--r-- | drivers/gles3/effects/feed_effects.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/drivers/gles3/effects/feed_effects.cpp b/drivers/gles3/effects/feed_effects.cpp new file mode 100644 index 0000000000..8ca88da662 --- /dev/null +++ b/drivers/gles3/effects/feed_effects.cpp @@ -0,0 +1,128 @@ +/**************************************************************************/ +/* feed_effects.cpp */ +/**************************************************************************/ +/* 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 */ +/* 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 "feed_effects.h" + +#ifdef ANDROID_ENABLED +#include <GLES3/gl3ext.h> +#endif + +#define GL_PROGRAM_POINT_SIZE 0x8642 + +using namespace GLES3; + +FeedEffects *FeedEffects::singleton = nullptr; + +FeedEffects *FeedEffects::get_singleton() { + return singleton; +} + +FeedEffects::FeedEffects() { + singleton = this; + + feed.shader.initialize(); + feed.shader_version = feed.shader.version_create(); + feed.shader.version_bind_shader(feed.shader_version, FeedShaderGLES3::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 + } +} + +FeedEffects::~FeedEffects() { + singleton = nullptr; + glDeleteBuffers(1, &screen_triangle); + glDeleteVertexArrays(1, &screen_triangle_array); + feed.shader.version_free(feed.shader_version); +} + +Transform3D transform3D_from_mat4(const float *p_mat4) { + Transform3D res; + + res.basis.rows[0][0] = p_mat4[0]; + res.basis.rows[1][0] = p_mat4[1]; + res.basis.rows[2][0] = p_mat4[2]; + // p_mat4[3] = 0; + res.basis.rows[0][1] = p_mat4[4]; + res.basis.rows[1][1] = p_mat4[5]; + res.basis.rows[2][1] = p_mat4[6]; + // p_mat4[7] = 0; + res.basis.rows[0][2] = p_mat4[8]; + res.basis.rows[1][2] = p_mat4[9]; + res.basis.rows[2][2] = p_mat4[10]; + // p_mat4[11] = 0; + res.origin.x = p_mat4[12]; + res.origin.y = p_mat4[13]; + res.origin.z = p_mat4[14]; + // p_mat4[15] = 1; + + return res; +} + +void FeedEffects::draw() { + bool success = feed.shader.version_bind_shader(feed.shader_version, FeedShaderGLES3::MODE_DEFAULT, FeedShaderGLES3::USE_EXTERNAL_SAMPLER); + if (!success) { + OS::get_singleton()->print("Godot : FeedShaderGLES3 Could not bind version_bind_shader USE_EXTERNAL_SAMPLER"); + return; + } + + draw_screen_triangle(); +} + +void FeedEffects::draw_screen_triangle() { + glBindVertexArray(screen_triangle_array); + glDrawArrays(GL_TRIANGLES, 0, 3); + glBindVertexArray(0); +} + +#endif // GLES3_ENABLED |