--- a/src/gl/gridprogram.cpp Sun Jun 26 20:54:09 2022 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,129 +0,0 @@
-/*
- * LDForge: LDraw parts authoring CAD
- * Copyright (C) 2020 Teemu Piippo
- *
- * This program 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.
- *
- * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "gridprogram.h"
-#include "partrenderer.h"
-
-constexpr char vertexShaderSource[] = R"(
-#version 330 core
-
-layout (location = 0) in vec2 in_position;
-uniform mat4 mvp;
-smooth out vec2 ex_uv;
-uniform mat4 grid;
-
-void main()
-{
- gl_Position = mvp * grid * vec4(in_position, 0.0, 1.0);
- ex_uv = in_position;
-}
-)";
-
-constexpr char fragmentShaderSource[] = R"(
-#version 330 core
-
-out vec4 color;
-smooth in vec2 ex_uv;
-uniform vec4 gridColor;
-
-void main(void)
-{
- float dx = fract(ex_uv.y);
- float dy = fract(ex_uv.x);
- /* fade the grid towards extreme co-ordinates */
- float d = (1.0f - 0.015 * max(abs(ex_uv.x), abs(ex_uv.y)));
- color = vec4(gridColor.xyz, gridColor.w * d);
-}
-)";
-
-template<int extent>
-constexpr auto calcGridData()
-{
- std::array<glm::vec2, 8 * extent + 4> result;
- std::size_t ix = 0;
- for (int i = -extent; i <= extent; i += 1) {
- result[ix++] = {i, -extent};
- result[ix++] = {i, extent};
- }
- for (int i = -extent; i <= extent; i += 1) {
- result[ix++] = {-extent, i};
- result[ix++] = {extent, i};
- }
- return result;
-}
-
-void GridLayer::setGridMatrix(const glm::mat4& newGridMatrix)
-{
- this->gridMatrix = newGridMatrix;
- if (this->isInitialized) {
- this->shader.setUniformMatrix("grid", newGridMatrix);
- }
-}
-
-void GridLayer::setGridColor(const QColor& newGridColor)
-{
- this->gridColor = gl::colorToVector4(newGridColor);
- if (this->isInitialized) {
- this->shader.setUniformVector("gridColor", this->gridColor);
- }
-}
-
-void GridLayer::settingsChanged()
-{
- this->setGridColor(this->renderer->isDark() ? Qt::white : Qt::black);
-}
-
-void GridLayer::initializeGL()
-{
- this->shader.initialize(
- ::vertexShaderSource,
- ::fragmentShaderSource,
- QOpenGLBuffer::StaticDraw,
- {
- GLAttributeSpec{
- .type = GL_FLOAT,
- .offset = 0,
- .tuplesize = 2,
- .stride = 0,
- },
- }
- );
- this->isInitialized = true;
- constexpr auto data = calcGridData<50>();
- this->shader.setUniformVector("gridColor", this->gridColor);
- this->setGridMatrix(this->gridMatrix);
- this->settingsChanged();
- this->shader.bufferData(data.data(), data.size(), sizeof data[0]);
-}
-
-void GridLayer::paintGL()
-{
- glLineWidth(1);
- glEnable(GL_BLEND);
- glLineStipple(1, 0x8888);
- glEnable(GL_LINE_STIPPLE);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- this->shader.draw(GL_LINES);
- glDisable(GL_BLEND);
- glDisable(GL_LINE_STIPPLE);
-}
-
-void GridLayer::mvpMatrixChanged(const glm::mat4& mvpMatrix)
-{
- this->shader.setMvpMatrix(mvpMatrix);
-}