💿🐜 Antkeeper source code
https://antkeeper.com
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
3.4 KiB
110 lines
3.4 KiB
/*
|
|
* Copyright (C) 2020 Christopher J. Howard
|
|
*
|
|
* This file is part of Antkeeper source code.
|
|
*
|
|
* Antkeeper source code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Antkeeper source code is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "renderer/passes/final-pass.hpp"
|
|
#include "resources/resource-manager.hpp"
|
|
#include "rasterizer/rasterizer.hpp"
|
|
#include "rasterizer/framebuffer.hpp"
|
|
#include "rasterizer/shader-program.hpp"
|
|
#include "rasterizer/shader-input.hpp"
|
|
#include "rasterizer/vertex-buffer.hpp"
|
|
#include "rasterizer/vertex-array.hpp"
|
|
#include "rasterizer/vertex-attribute-type.hpp"
|
|
#include "rasterizer/drawing-mode.hpp"
|
|
#include "rasterizer/texture-2d.hpp"
|
|
#include "rasterizer/texture-wrapping.hpp"
|
|
#include "rasterizer/texture-filter.hpp"
|
|
#include "renderer/vertex-attributes.hpp"
|
|
#include "renderer/render-context.hpp"
|
|
#include "math/math.hpp"
|
|
#include <cmath>
|
|
#include <glad/glad.h>
|
|
|
|
final_pass::final_pass(::rasterizer* rasterizer, const ::framebuffer* framebuffer, resource_manager* resource_manager):
|
|
render_pass(rasterizer, framebuffer),
|
|
color_texture(nullptr),
|
|
bloom_texture(nullptr)
|
|
{
|
|
shader_program = resource_manager->load<::shader_program>("final.glsl");
|
|
color_texture_input = shader_program->get_input("color_texture");
|
|
bloom_texture_input = shader_program->get_input("bloom_texture");
|
|
resolution_input = shader_program->get_input("resolution");
|
|
|
|
const float vertex_data[] =
|
|
{
|
|
-1.0f, 1.0f, 0.0f,
|
|
-1.0f, -1.0f, 0.0f,
|
|
1.0f, 1.0f, 0.0f,
|
|
1.0f, 1.0f, 0.0f,
|
|
-1.0f, -1.0f, 0.0f,
|
|
1.0f, -1.0f, 0.0f
|
|
};
|
|
|
|
std::size_t vertex_size = 3;
|
|
std::size_t vertex_stride = sizeof(float) * vertex_size;
|
|
std::size_t vertex_count = 6;
|
|
|
|
quad_vbo = new vertex_buffer(sizeof(float) * vertex_size * vertex_count, vertex_data);
|
|
quad_vao = new vertex_array();
|
|
quad_vao->bind_attribute(VERTEX_POSITION_LOCATION, *quad_vbo, 3, vertex_attribute_type::float_32, vertex_stride, 0);
|
|
}
|
|
|
|
final_pass::~final_pass()
|
|
{
|
|
delete quad_vao;
|
|
delete quad_vbo;
|
|
}
|
|
|
|
void final_pass::render(render_context* context) const
|
|
{
|
|
rasterizer->use_framebuffer(*framebuffer);
|
|
|
|
glDisable(GL_BLEND);
|
|
glDisable(GL_DEPTH_TEST);
|
|
glDepthMask(GL_FALSE);
|
|
glEnable(GL_CULL_FACE);
|
|
glCullFace(GL_BACK);
|
|
|
|
auto viewport = framebuffer->get_dimensions();
|
|
rasterizer->set_viewport(0, 0, std::get<0>(viewport), std::get<1>(viewport));
|
|
|
|
float2 resolution = {std::get<0>(viewport), std::get<1>(viewport)};
|
|
|
|
// Change shader program
|
|
rasterizer->use_program(*shader_program);
|
|
|
|
// Upload shader parameters
|
|
color_texture_input->upload(color_texture);
|
|
bloom_texture_input->upload(bloom_texture);
|
|
resolution_input->upload(resolution);
|
|
|
|
// Draw quad
|
|
rasterizer->draw_arrays(*quad_vao, drawing_mode::triangles, 0, 6);
|
|
}
|
|
|
|
void final_pass::set_color_texture(const texture_2d* texture)
|
|
{
|
|
this->color_texture = texture;
|
|
}
|
|
|
|
void final_pass::set_bloom_texture(const texture_2d* texture)
|
|
{
|
|
this->bloom_texture = texture;
|
|
}
|
|
|