Shark.cpp
author František Kučera <franta-hg@frantovo.cz>
Sun, 03 Dec 2023 00:17:48 +0100
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monitor texture and shader file writes using inotify: reload textures
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/**
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 * ShaderShark
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 * Copyright © 2023 František Kučera (Frantovo.cz, GlobalCode.info)
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, version 3 of the License.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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#include <iostream>
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#include <iomanip>
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#include <string>
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#include <memory>
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#include <functional>
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#include <sstream>
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#include <vector>
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#include "x11.h"
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#include "opengl.h"
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#include "EPoll.h"
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#include "Logger.h"
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#include "MappedFile.h"
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#include "ImageLoader.h"
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#include "Shader.h"
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#include "Program.h"
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#include "FileMonitor.h"
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#include "Shark.h"
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class Shark::Impl {
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public:
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	struct {
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		GLint aVertexXYZ = -2;
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		GLint aTextureXY = -2;
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		GLint fColor = -2;
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		GLint uModel = -2;
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		GLint uView = -2;
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		GLint uProjection = -2;
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		GLint uTexture = -2;
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	} ProgAttr;
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	struct {
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		float yaw = -90.f;
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		float pitch = 0.f;
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		float roll = 0.f;
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		float fov = 45.0f;
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		glm::vec3 cameraPos = glm::vec3(0.0f, 0.0f, 3.0f);
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		glm::vec3 cameraFront = glm::vec3(0.0f, 0.0f, -1.0f);
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		glm::vec3 cameraUp = glm::vec3(0.0f, 1.0f, 0.0f);
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		void adjustFov(float diff) {
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			fov += diff;
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			if (fov < 1.0f) fov = 1.0f;
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			else if (fov > 120.0f) fov = 120.0f;
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			std::cerr << "field of view: " << fov << " °" << std::endl;
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		}
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		void moveForward(const float cameraSpeed) {
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			cameraPos += cameraSpeed * cameraFront;
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		}
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		void moveBackward(const float cameraSpeed) {
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			cameraPos -= cameraSpeed * cameraFront;
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		}
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		void moveLeft(const float cameraSpeed) {
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			cameraPos -= glm::normalize(
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					glm::cross(cameraFront, cameraUp)) * cameraSpeed;
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		}
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		void moveRight(const float cameraSpeed) {
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			cameraPos += glm::normalize(
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					glm::cross(cameraFront, cameraUp)) * cameraSpeed;
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		}
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		void moveUp(const float cameraSpeed) {
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			cameraPos += cameraSpeed * glm::normalize(cameraUp);
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		}
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		void moveDown(const float cameraSpeed) {
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			cameraPos -= cameraSpeed * glm::normalize(cameraUp);
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		}
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		void updateCameraFrontAndUp() {
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			std::cerr << "--- updateCameraFrontAndUp() --------" << std::endl;
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			dump("pitch, yaw, roll", glm::vec3(pitch, yaw, roll));
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			dump("cameraPos", cameraPos);
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			dump("cameraFront", cameraFront);
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			const auto pitchR = glm::radians(pitch); // around X axis
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			const auto yawR = glm::radians(yaw); //     around Y axis
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			const auto rollR = glm::radians(roll); //   around Z axis
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			cameraFront.x = cos(pitchR) * cos(yawR);
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			cameraFront.y = sin(pitchR);
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			cameraFront.z = cos(pitchR) * sin(yawR);
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			cameraFront = glm::normalize(cameraFront);
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			dump("cameraFront", cameraFront);
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			dump("cameraUp", cameraUp);
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			// TODO: review ROLL rotation and default angle
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			glm::mat4 rollMatrix = glm::rotate(
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					glm::mat4(1.0f), rollR, cameraFront);
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			cameraUp = glm::mat3(rollMatrix) * glm::vec3(0., 1., 0.);
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			dump("cameraUp", cameraUp);
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			std::cerr << "-------------------------------------" << std::endl;
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		}
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		void limitPitch() {
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			if (pitch > +89.0f) pitch = +89.0f;
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			if (pitch < -89.0f) pitch = -89.0f;
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		}
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		void turnLeft(const float angleSpeed) {
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			yaw -= angleSpeed;
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			updateCameraFrontAndUp();
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		}
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		void turnRight(const float angleSpeed) {
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			yaw += angleSpeed;
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			updateCameraFrontAndUp();
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		}
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		void turnUp(const float angleSpeed) {
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			pitch += angleSpeed;
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			limitPitch();
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			updateCameraFrontAndUp();
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		}
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		void turnDown(const float angleSpeed) {
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			pitch -= angleSpeed;
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			limitPitch();
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			updateCameraFrontAndUp();
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		}
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		void rollLeft(const float angleSpeed) {
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			roll += angleSpeed;
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			updateCameraFrontAndUp();
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		}
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		void rollRight(const float angleSpeed) {
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			roll -= angleSpeed;
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			updateCameraFrontAndUp();
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		}
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	} initialCtx, ctx;
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	class Texture {
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	public:
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		GLuint id;
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		std::string fileName;
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		int width;
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		int height;
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		GLfloat getRatio() const {
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			return (GLfloat) width / (GLfloat) height;
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		}
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	};
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	Display* dpy;
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	Window win;
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	XVisualInfo* vi;
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	GLXContext glc;
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	FileMonitor fileMonitor;
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	std::vector<WatchedFile> watchedFiles;
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	ImageLoader imageLoader;
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	std::vector<std::shared_ptr<Shader>> shaders;
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	std::shared_ptr<Program> shaderProgram;
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	std::vector<Texture> textures;
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	Configuration cfg;
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	std::ostream& logOutput = std::cerr;
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	Impl(Configuration cfg) : cfg(cfg) {
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	}
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	void run();
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	void clear();
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	void runShaders();
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	Window getRootWindow(Window defaultValue);
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	void log(LogLevel level, std::string message);
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	int setNonBlocking(int fd);
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	void loadVertices();
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	Texture loadTexture(const std::string& fileName);
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	void updateTexture(Texture& tex, const Buffer& file);
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	bool reloadTexture(const std::string& fileName);
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	void loadTextures();
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	std::shared_ptr<Program> loadShaders();
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	bool reloadShader(const std::string& fileName);
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	void setTitle(const std::string& suffix = "");
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	static const std::string getDefaultFile(const std::string& relativePath);
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};
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Shark::Shark(const Configuration& configuration) :
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impl(new Impl(configuration)) {
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}
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Shark::~Shark() {
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	// TODO: more SBRM
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	impl->shaders.clear();
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	impl->shaderProgram = nullptr;
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	XFree(impl->vi);
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	// for (auto page : pdfTextures) glDeleteTextures(1, &page.texture);
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	glXMakeCurrent(impl->dpy, None, NULL);
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	glXDestroyContext(impl->dpy, impl->glc);
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	XDestroyWindow(impl->dpy, impl->win);
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	XCloseDisplay(impl->dpy);
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	delete impl;
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	// std::cerr << "~Shark()" << std::endl;
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}
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void Shark::Impl::setTitle(const std::string& suffix) {
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	std::stringstream title;
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	title << "ShaderShark";
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	if (suffix.size()) title << ": " << suffix.c_str();
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	XStoreName(dpy, win, title.str().c_str());
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	XFlush(dpy);
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}
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void Shark::run() {
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	impl->run();
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}
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void Shark::Impl::run() {
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	dpy = XOpenDisplay(NULL);
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	if (dpy == NULL) throw std::logic_error("Unable to connect to X server");
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	GLint att[] = {GLX_RGBA, GLX_DEPTH_SIZE, 24, GLX_DOUBLEBUFFER, None};
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	vi = glXChooseVisual(dpy, 0, att);
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	Window root = DefaultRootWindow(dpy);
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	Window parent = cfg.rootWindow ? cfg.rootWindow : root;
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	XSetWindowAttributes swa;
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	swa.colormap = XCreateColormap(dpy, parent, vi->visual, AllocNone);
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	swa.event_mask = ExposureMask | KeyPressMask | PointerMotionMask
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			| ButtonPressMask
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			| StructureNotifyMask;
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	bool full = false;
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	unsigned int width = 1600;
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	unsigned int height = 1200;
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	if (parent != root) {
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		XWindowAttributes parentAttr;
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		XGetWindowAttributes(dpy, parent, &parentAttr);
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		width = parentAttr.width;
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		height = parentAttr.height;
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	}
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	win = XCreateWindow(
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			dpy, parent, 0, 0, width, height, 0,
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			vi->depth, InputOutput, vi->visual,
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			CWColormap | CWEventMask, &swa);
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	XMapWindow(dpy, win);
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	setTitle();
0
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	setX11PID(dpy, win);
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	// XSetWindowBackground(dpy, win, 0) vs. glClearColor()
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	glc = glXCreateContext(dpy, vi, NULL, GL_TRUE);
0
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	glXMakeCurrent(dpy, win, glc);
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3
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	clear();
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	glXSwapBuffers(dpy, win);
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0
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	// Load GLSL shaders:
3
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	shaderProgram = loadShaders();
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	loadTextures();
0
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	loadVertices();
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	auto toggleFullscreen = [&]() {
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		full = setFullscreen(dpy, win, !full);
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	};
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	auto resetView = [&]() {
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		ctx = initialCtx;
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		ctx.updateCameraFrontAndUp();
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	};
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	// root can reize our window
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	// or we can listen to root resize and then resize our window ourselves
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	bool listenToRootResizes = true;
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   296
	if (listenToRootResizes) XSelectInput(dpy, parent, StructureNotifyMask);
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	bool keepRunningX11 = true;
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	int x11fd = XConnectionNumber(dpy);
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	EPoll epoll;
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	epoll.add(x11fd);
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e6065118326f monitor texture and shader file writes using inotify: print file events
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	epoll.add(fileMonitor.getFD());
0
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   303
	try {
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		epoll.add(setNonBlocking(STDIN_FILENO));
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   305
	} catch (const EPoll::Exception& e) {
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		logOutput << "Will not monitor events on STDIN: " << e.what() << "\n";
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	}
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	// rended the 3D scene even before the first event:
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	runShaders();
0
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	glXSwapBuffers(dpy, win);
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	for (XEvent xev; keepRunningX11;) {
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		int epollEventCount = epoll.wait();
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		//std::cout << "trace: epoll.wait() = " << epollEventCount << std::endl;
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		for (int epollEvent = 0; epollEvent < epollEventCount; epollEvent++) {
8
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
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			bool redraw = false;
0
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parents:
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   318
			if (epoll[epollEvent].data.fd == x11fd) {
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parents:
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   319
				if (!XPending(dpy)) {
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					// otherwise STDIN events are held until the first X11 event
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					logOutput << "trace: no pending X11 event" << std::endl;
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					break;
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   323
				}
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				XWindowAttributes gwa;
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				XNextEvent(dpy, &xev);
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   326
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				if (xev.type == Expose) {
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					std::cout << "XEvent: Expose" << std::endl;
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					XGetWindowAttributes(dpy, win, &gwa);
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					glViewport(0, 0, gwa.width, gwa.height);
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					redraw = true;
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   332
				} else if (xev.type == KeyPress) {
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					DecodedKey key = decodeKeycode(dpy, xev.xkey.keycode);
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					std::cout << "XEvent: KeyPress:"
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							<< " keycode=" << key.code
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							<< " key=" << key.name
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							<< std::endl;
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   338
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					const float cSp = 0.05f; // camera speed
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   340
					const float aSp = 5.f; // angle speed
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					if (key.matches(XK_q, XK_Escape)) keepRunningX11 = false;
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   343
					else if (key.matches(XK_Left, XK_s)) ctx.turnLeft(aSp);
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parents:
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   344
					else if (key.matches(XK_Right, XK_f)) ctx.turnRight(aSp);
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   345
					else if (key.matches(XK_Up, XK_e)) ctx.moveForward(cSp);
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parents:
diff changeset
   346
					else if (key.matches(XK_Down, XK_d)) ctx.moveBackward(cSp);
bb715a82a8f1 project skeleton
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parents:
diff changeset
   347
					else if (key.matches(XK_w)) ctx.rollLeft(aSp);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   348
					else if (key.matches(XK_r)) ctx.rollRight(aSp);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   349
					else if (key.matches(XK_t)) ctx.turnUp(aSp);
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František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   350
					else if (key.matches(XK_g)) ctx.turnDown(aSp);
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František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   351
					else if (key.matches(XK_m)) ctx.moveLeft(cSp);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   352
					else if (key.matches(XK_comma)) ctx.moveRight(cSp);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   353
					else if (key.matches(XK_l)) ctx.moveUp(cSp);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   354
					else if (key.matches(XK_period)) ctx.moveDown(cSp);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   355
					else if (key.matches(XK_j)) ctx.moveLeft(cSp * 5);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   356
					else if (key.matches(XK_k)) ctx.moveRight(cSp * 5);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   357
					else if (key.matches(XK_u)) ctx.moveLeft(cSp * 10);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   358
					else if (key.matches(XK_i)) ctx.moveRight(cSp * 10);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   359
					else if (key.matches(XK_x)) resetView();
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   360
					else if (key.matches(XK_F11, XK_y)) toggleFullscreen();
bb715a82a8f1 project skeleton
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parents:
diff changeset
   361
					redraw = true;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   362
				} else if (xev.type == ButtonPress) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   363
					std::cout << "XEvent: ButtonPress:"
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   364
							<< " button=" << xev.xbutton.button
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   365
							<< std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   366
					if (xev.xbutton.button == 1);
9
53ba7e52c67c mouse wheel: move camera, not object
František Kučera <franta-hg@frantovo.cz>
parents: 8
diff changeset
   367
					else if (xev.xbutton.button == 4) ctx.adjustFov(-1.0);
53ba7e52c67c mouse wheel: move camera, not object
František Kučera <franta-hg@frantovo.cz>
parents: 8
diff changeset
   368
					else if (xev.xbutton.button == 5) ctx.adjustFov(+1.0);
0
bb715a82a8f1 project skeleton
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parents:
diff changeset
   369
					else if (xev.xbutton.button == 8) resetView();
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František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   370
					else if (xev.xbutton.button == 9) keepRunningX11 = false;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   371
					redraw = true;
bb715a82a8f1 project skeleton
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parents:
diff changeset
   372
				} else if (xev.type == MotionNotify) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   373
					// printCursorInfo(xev.xmotion);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   374
				} else if (xev.type == ConfigureNotify) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   375
					std::cout << "XEvent: ConfigureNotify:"
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   376
							<< " window=" << xev.xconfigure.window
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   377
							<< " height=" << xev.xconfigure.height
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   378
							<< " width=" << xev.xconfigure.width
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   379
							<< std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   380
					if (listenToRootResizes
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   381
							&& xev.xconfigure.window == parent) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   382
						XResizeWindow(dpy, win,
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   383
								xev.xconfigure.width, xev.xconfigure.height);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   384
					}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   385
				} else if (xev.type == UnmapNotify) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   386
					std::cout << "XEvent: UnmapNotify" << std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   387
				} else if (xev.type == DestroyNotify) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   388
					std::cout << "XEvent: DestroyNotify → finish" << std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   389
					break;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   390
				} else {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   391
					std::cout << "XEvent: type=" << xev.type << std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   392
				}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   393
			} else if (epoll[epollEvent].data.fd == STDIN_FILENO) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   394
				int epollFD = epoll[epollEvent].data.fd;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   395
				logOutput << "other event: fd=" << epollFD << " data=";
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   396
				for (char ch; read(epollFD, &ch, 1) > 0;) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   397
					std::stringstream msg;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   398
					msg
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   399
							<< std::hex
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   400
							<< std::setfill('0')
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   401
							<< std::setw(2)
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   402
							<< (int) ch;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   403
					logOutput << msg.str();
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   404
				}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   405
				logOutput << std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   406
7
e6065118326f monitor texture and shader file writes using inotify: print file events
František Kučera <franta-hg@frantovo.cz>
parents: 6
diff changeset
   407
			} else if (epoll[epollEvent].data.fd == fileMonitor.getFD()) {
e6065118326f monitor texture and shader file writes using inotify: print file events
František Kučera <franta-hg@frantovo.cz>
parents: 6
diff changeset
   408
				std::cout << "FileMonitor event:" << std::endl;
e6065118326f monitor texture and shader file writes using inotify: print file events
František Kučera <franta-hg@frantovo.cz>
parents: 6
diff changeset
   409
				for (FileEvent fe; fileMonitor.readEvent(fe);) {
8
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   410
					logOutput << "   "
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   411
							<< " file=" << fe.fileName
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   412
							<< " mask=" << fe.mask
7
e6065118326f monitor texture and shader file writes using inotify: print file events
František Kučera <franta-hg@frantovo.cz>
parents: 6
diff changeset
   413
							<< std::endl;
8
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   414
					try {
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   415
						redraw |= reloadTexture(fe.fileName);
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   416
						redraw |= reloadShader(fe.fileName);
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   417
						setTitle();
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   418
					} catch (const std::exception& e) {
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   419
						setTitle("[ERROR]");
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   420
						logOutput << "error while reloading '"
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   421
								<< fe.fileName.c_str()
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   422
								<< "': " << e.what() << std::endl;
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   423
					}
7
e6065118326f monitor texture and shader file writes using inotify: print file events
František Kučera <franta-hg@frantovo.cz>
parents: 6
diff changeset
   424
				}
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   425
			} else {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   426
				logOutput
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   427
						<< "error: event on an unexpected FD: "
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   428
						<< epoll[epollEvent].data.fd
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   429
						<< std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   430
			}
8
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   431
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   432
			if (redraw) {
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   433
				runShaders();
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   434
				glXSwapBuffers(dpy, win);
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   435
			}
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   436
		}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   437
	}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   438
}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   439
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   440
void Shark::Impl::clear() {
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   441
	glClearColor(
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   442
			(cfg.backgroundColor >> 16 & 0xFF) / 256.,
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   443
			(cfg.backgroundColor >> 8 & 0xFF) / 256.,
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   444
			(cfg.backgroundColor & 0xFF) / 256.,
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   445
			1.0);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   446
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
3
48dc4ae894b0 clear screen / paint background before loading textures
František Kučera <franta-hg@frantovo.cz>
parents: 2
diff changeset
   447
}
48dc4ae894b0 clear screen / paint background before loading textures
František Kučera <franta-hg@frantovo.cz>
parents: 2
diff changeset
   448
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   449
void Shark::Impl::runShaders() {
5
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   450
	shaderProgram->use();
3
48dc4ae894b0 clear screen / paint background before loading textures
František Kučera <franta-hg@frantovo.cz>
parents: 2
diff changeset
   451
	checkError(&std::cerr);
48dc4ae894b0 clear screen / paint background before loading textures
František Kučera <franta-hg@frantovo.cz>
parents: 2
diff changeset
   452
48dc4ae894b0 clear screen / paint background before loading textures
František Kučera <franta-hg@frantovo.cz>
parents: 2
diff changeset
   453
	clear();
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   454
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   455
	GLint viewport[4];
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   456
	glGetIntegerv(GL_VIEWPORT, viewport);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   457
	GLfloat width = viewport[2];
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   458
	GLfloat height = viewport[3];
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   459
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   460
	glm::mat4 projection = glm::perspective(
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   461
			glm::radians(ctx.fov),
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   462
			width / height,
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   463
			0.1f, 100.0f);
2
3faef2f5128e better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents: 1
diff changeset
   464
	glUniformMatrix4fv(ProgAttr.uProjection, 1, GL_FALSE, &projection[0][0]);
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   465
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   466
	glm::mat4 view = glm::lookAt(
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   467
			ctx.cameraPos,
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   468
			ctx.cameraPos + ctx.cameraFront,
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   469
			ctx.cameraUp);
2
3faef2f5128e better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents: 1
diff changeset
   470
	glUniformMatrix4fv(ProgAttr.uView, 1, GL_FALSE, &view[0][0]);
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   471
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   472
	// glBindVertexArray(vao);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   473
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   474
	glm::mat4 model = glm::mat4(1.0f); // identity matrix
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   475
	// model = glm::translate(model, glm::vec3(0., 0., 0.));
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   476
	// float angle = 20.0f;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   477
	// glm::vec3 xxx = glm::vec3(1.0f, 0.3f, 0.5f);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   478
	// model = glm::rotate(model, glm::radians(angle), xxx);
2
3faef2f5128e better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents: 1
diff changeset
   479
	glUniformMatrix4fv(ProgAttr.uModel, 1, GL_FALSE, &model[0][0]);
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   480
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   481
	glDrawArrays(GL_TRIANGLES, 0, 2 * 3); // viz loadVertices() kde plníme data
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   482
	std::cerr << "GLSL: glDrawArrays()" << std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   483
}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   484
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   485
void Shark::Impl::log(LogLevel level, std::string message) {
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   486
	::log(logOutput, level, message);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   487
}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   488
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   489
int Shark::Impl::setNonBlocking(int fd) {
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   490
	int flags = fcntl(fd, F_GETFL, 0);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   491
	fcntl(fd, F_SETFL, flags | O_NONBLOCK);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   492
	return fd;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   493
}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   494
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   495
void Shark::Impl::loadVertices() {
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   496
	for (int i = 0; i < textures.size(); i++) {
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   497
		const Texture& tex = textures[i];
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   498
		GLfloat ratio = tex.getRatio();
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   499
		const std::vector<GLfloat> vertices = {
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   500
			// Vertex XYZ                      Texture XY
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   501
			-0.80f * ratio, +0.80f, +0.0, /**/ 0.0, 0.0,
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   502
			+0.80f * ratio, +0.80f, +0.0, /**/ 1.0, 0.0,
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   503
			-0.80f * ratio, -0.80f, +0.0, /**/ 0.0, 1.0,
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   504
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   505
			-0.80f * ratio, -0.80f, +0.0, /**/ 0.0, 1.0,
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   506
			+0.80f * ratio, -0.80f, +0.0, /**/ 1.0, 1.0,
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   507
			+0.80f * ratio, +0.80f, +0.0, /**/ 1.0, 0.0,
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   508
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   509
			// viz glDrawArrays(), kde vybereme počátek a počet hodnot
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   510
		};
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   511
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   512
		// Vertex data:
2
3faef2f5128e better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents: 1
diff changeset
   513
		glVertexAttribPointer(ProgAttr.aVertexXYZ, 3, // vertex items
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   514
				GL_FLOAT, GL_FALSE, 5 * sizeof (float),
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   515
				(void*) 0);
2
3faef2f5128e better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents: 1
diff changeset
   516
		glEnableVertexAttribArray(ProgAttr.aVertexXYZ);
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   517
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   518
		// Texture positions:
2
3faef2f5128e better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents: 1
diff changeset
   519
		glVertexAttribPointer(ProgAttr.aTextureXY, 2, // texture items
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   520
				GL_FLOAT, GL_FALSE, 5 * sizeof (float),
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   521
				(void*) (3 * sizeof (float)));
2
3faef2f5128e better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents: 1
diff changeset
   522
		glEnableVertexAttribArray(ProgAttr.aTextureXY);
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   523
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   524
		glBufferData(GL_ARRAY_BUFFER,
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   525
				vertices.size() * sizeof (vertices[0]),
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   526
				vertices.data(),
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   527
				GL_STATIC_DRAW);
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   528
		// GL_STATIC_DRAW:
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   529
		//   The vertex data will be uploaded once
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   530
		//   and drawn many times(e.g. the world).
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   531
		// GL_DYNAMIC_DRAW:
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   532
		//   The vertex data will be created once, changed from
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   533
		// 	 time to time, but drawn many times more than that.
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   534
		// GL_STREAM_DRAW:
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   535
		//   The vertex data will be uploaded once and drawn once.
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   536
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   537
		// see also glBindBuffer(GL_ARRAY_BUFFER, vbo); where we set current VBO
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   538
	}
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   539
}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   540
11
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   541
const std::string
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   542
Shark::Shark::Impl::getDefaultFile(const std::string& relativePath) {
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   543
	const char* envName = "SHADER_SHARK_DATA_DIR";
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   544
	const char* envValue = ::getenv(envName);
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   545
	if (envValue) {
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   546
		return std::string(envValue) + "/" + relativePath;
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   547
	} else {
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   548
		throw std::invalid_argument(std::string("Configure $") + envName
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   549
				+ " in order to use defaults"
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   550
				" or specify textures and shaders as parameters");
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   551
	}
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   552
}
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   553
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   554
Shark::Impl::Texture Shark::Impl::loadTexture(const std::string& fileName) {
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   555
	Texture tex;
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   556
	tex.fileName = fileName;
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   557
	MappedFile file(tex.fileName);
12
076e3b2d97ac monitor texture and shader file writes using inotify: reload textures
František Kučera <franta-hg@frantovo.cz>
parents: 11
diff changeset
   558
	updateTexture(tex, file);
076e3b2d97ac monitor texture and shader file writes using inotify: reload textures
František Kučera <franta-hg@frantovo.cz>
parents: 11
diff changeset
   559
	return tex;
076e3b2d97ac monitor texture and shader file writes using inotify: reload textures
František Kučera <franta-hg@frantovo.cz>
parents: 11
diff changeset
   560
}
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   561
12
076e3b2d97ac monitor texture and shader file writes using inotify: reload textures
František Kučera <franta-hg@frantovo.cz>
parents: 11
diff changeset
   562
void Shark::Impl::updateTexture(Texture& tex, const Buffer& file) {
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   563
	std::shared_ptr<ImageLoader::ImageBuffer> img(imageLoader.loadImage(file));
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   564
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   565
	tex.width = img->width;
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   566
	tex.height = img->height;
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   567
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   568
	glGenTextures(1, &tex.id);
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   569
	glBindTexture(GL_TEXTURE_2D, tex.id);
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   570
	auto GLT2D = GL_TEXTURE_2D;
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   571
	glTexImage2D(GLT2D, 0, GL_RGBA,
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   572
			tex.width, tex.height,
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   573
			0, GL_RGBA, GL_UNSIGNED_BYTE,
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   574
			img->getData());
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   575
	glTexParameteri(GLT2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   576
	glTexParameteri(GLT2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   577
	glTexParameteri(GLT2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   578
	glTexParameteri(GLT2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   579
	glGenerateMipmap(GLT2D);
12
076e3b2d97ac monitor texture and shader file writes using inotify: reload textures
František Kučera <franta-hg@frantovo.cz>
parents: 11
diff changeset
   580
	std::cerr << "loadTexture(\"" << tex.fileName.c_str() << "\", "
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   581
			<< tex.width << ", " << tex.height << ") = " << tex.id << std::endl;
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   582
	checkError(&std::cerr);
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   583
}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   584
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   585
void Shark::Impl::loadTextures() {
11
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   586
	// Load default texture if there is no configured:
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   587
	if (cfg.textures.empty())
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   588
		cfg.textures.push_back({getDefaultFile("textures/default.png")});
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   589
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   590
	for (const Configuration::Texture& tex : cfg.textures) {
1
fb65455622b9 load textures from PNG, JPEG etc. files using ImageMagick
František Kučera <franta-hg@frantovo.cz>
parents: 0
diff changeset
   591
		textures.push_back(loadTexture(tex.fileName));
7
e6065118326f monitor texture and shader file writes using inotify: print file events
František Kučera <franta-hg@frantovo.cz>
parents: 6
diff changeset
   592
		watchedFiles.push_back(fileMonitor.watch(tex.fileName));
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   593
		// TODO: review texture loading and binding
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   594
		// works even without this - default texture
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   595
		// glUniform1i(ProgAttr.jazz, jazz);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   596
		// checkError(&std::cerr);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   597
	}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   598
}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   599
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   600
bool Shark::Impl::reloadTexture(const std::string& fileName) {
12
076e3b2d97ac monitor texture and shader file writes using inotify: reload textures
František Kučera <franta-hg@frantovo.cz>
parents: 11
diff changeset
   601
	for (Texture& tex : textures) {
8
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   602
		if (tex.fileName == fileName) {
12
076e3b2d97ac monitor texture and shader file writes using inotify: reload textures
František Kučera <franta-hg@frantovo.cz>
parents: 11
diff changeset
   603
			updateTexture(tex, MappedFile(fileName));
076e3b2d97ac monitor texture and shader file writes using inotify: reload textures
František Kučera <franta-hg@frantovo.cz>
parents: 11
diff changeset
   604
			loadVertices();
8
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   605
			return true;
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   606
		}
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   607
	}
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   608
	return false;
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   609
}
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   610
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   611
std::shared_ptr<Program> Shark::Impl::loadShaders() {
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   612
	try {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   613
		// Vertex Array Object (VAO)
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   614
		GLuint vao;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   615
		glGenVertexArrays(1, &vao);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   616
		glBindVertexArray(vao);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   617
		// VAO - something like context for bound data/variables
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   618
		// We can switch multiple VAOs. VAO can contain multiple VBOs.
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   619
		// See also https://stackoverflow.com/questions/11821336/
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   620
		// what-are-vertex-array-objects
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   621
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   622
		// Vertex Buffer Object (VBO):
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   623
		GLuint vbo;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   624
		glGenBuffers(1, &vbo);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   625
		glBindBuffer(GL_ARRAY_BUFFER, vbo);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   626
11
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   627
		{
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   628
			// Load default shaders if there are no configured:
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   629
			int vc = 0;
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   630
			int fc = 0;
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   631
			auto& ss = cfg.shaders;
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   632
			for (const auto& s : ss) if (s.type == "vertex") vc++;
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   633
			for (const auto& s : ss) if (s.type == "fragment") fc++;
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   634
			auto& d = getDefaultFile;
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   635
			if (vc == 0) ss.push_back({d("shaders/default.vert"), "vertex"});
0aeedc35ebed use default texture and shaders from the $SHADER_SHARK_DATA_DIR directory, if not configured as command line arguments
František Kučera <franta-hg@frantovo.cz>
parents: 10
diff changeset
   636
			if (fc == 0) ss.push_back({d("shaders/default.frag"), "fragment"});
6
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   637
		}
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   638
5
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   639
		std::shared_ptr<Program> program = std::make_shared<Program>();
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   640
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   641
		// glBindFragDataLocation(program, 0, "outColor");
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   642
		// glBindAttribLocation(program, LOC.input, "vertices");
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   643
6
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   644
		for (const Configuration::Shader definition : cfg.shaders) {
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   645
			Shader::Type type;
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   646
			std::string fileName = definition.fileName;
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   647
			if (definition.type == "fragment") type = Shader::Type::FRAGMENT;
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   648
			else if (definition.type == "vertex") type = Shader::Type::VERTEX;
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   649
			else throw std::invalid_argument("unsupported shader type");
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   650
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   651
			MappedFile file(fileName);
5
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   652
			std::shared_ptr<Shader> shader = std::make_shared<Shader>(
6
fd93a46db15b support custom shaders
František Kučera <franta-hg@frantovo.cz>
parents: 5
diff changeset
   653
					type, file, fileName);
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   654
5
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   655
			program->attachShader(*shader.get());
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   656
			shaders.push_back(shader);
7
e6065118326f monitor texture and shader file writes using inotify: print file events
František Kučera <franta-hg@frantovo.cz>
parents: 6
diff changeset
   657
			watchedFiles.push_back(fileMonitor.watch(fileName));
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   658
			std::cerr << "GLSL loaded: " << fileName.c_str() << std::endl;
8
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   659
			// We may detach and delete shaders,
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   660
			// but our shaders are small, so we keep them for later reloading.
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   661
		}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   662
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   663
		// GLSL compiler does very efficient / aggressive optimization.
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   664
		// Attributes and uniforms that are not used in the shader are deleted.
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   665
		// And even if we e.g. read color from a texture and overwrite it,
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   666
		// the variable is still deleted and considered „inactive“.
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   667
		// Functions glGetAttribLocation() and glGetUniformLocation() return -1.
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   668
5
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   669
		program->link();
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   670
5
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   671
		ProgAttr.aVertexXYZ = program->getAttribLocation("aVertexXYZ");
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   672
		ProgAttr.aTextureXY = program->getAttribLocation("aTextureXY");
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   673
		ProgAttr.uModel = program->getUniformLocation("uModel");
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   674
		ProgAttr.uView = program->getUniformLocation("uView");
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   675
		ProgAttr.uProjection = program->getUniformLocation("uProjection");
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   676
		ProgAttr.uTexture = program->getUniformLocation("uTexture");
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   677
		ProgAttr.fColor = program->getFragDataLocation("fColor");
ee4ba9f5a053 OOP for Shader and ShaderProgram
František Kučera <franta-hg@frantovo.cz>
parents: 3
diff changeset
   678
		program->bindFragDataLocation("fColor", ProgAttr.fColor);
0
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   679
		// listVariables(program);
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   680
		std::cerr << "GLSL shader count: " << shaders.size() << std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   681
		return program;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   682
	} catch (const std::exception& e) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   683
		std::cerr << "Error while loading shaders: " << e.what() << std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   684
	} catch (...) {
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   685
		std::cerr << "Error while loading shaders: unknown" << std::endl;
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   686
	}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   687
	throw std::logic_error("GLSL: loadShaders() failed");
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   688
}
bb715a82a8f1 project skeleton
František Kučera <franta-hg@frantovo.cz>
parents:
diff changeset
   689
10
8382173bfc35 private Impl class also for the Shark
František Kučera <franta-hg@frantovo.cz>
parents: 9
diff changeset
   690
bool Shark::Impl::reloadShader(const std::string& fileName) {
8
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   691
	for (auto shader : shaders) {
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   692
		if (shader->getFileName() == fileName) {
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   693
			shader->update(MappedFile(fileName));
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   694
			shaderProgram->link();
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   695
			return true;
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   696
		}
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   697
	}
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   698
	return false;
80ad08521091 monitor texture and shader file writes using inotify: reload shaders
František Kučera <franta-hg@frantovo.cz>
parents: 7
diff changeset
   699
}