feat(lab_2): preALlfa work wersion

This commit is contained in:
Kirill 2025-05-01 18:37:06 +03:00
parent 65aeef7f2b
commit be5701e4de
20 changed files with 957 additions and 0 deletions

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lab_2/.gitignore vendored Normal file
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.gradle
shell.nix
build/
!gradle/wrapper/gradle-wrapper.jar
!**/src/main/**/build/
!**/src/test/**/build/
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
*.iws
*.iml
*.ipr
out/
!**/src/main/**/out/
!**/src/test/**/out/
### Kotlin ###
.kotlin
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
bin/
!**/src/main/**/bin/
!**/src/test/**/bin/
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

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# Default ignored files
/shelf/
/workspace.xml

17
lab_2/.idea/gradle.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleMigrationSettings" migrationVersion="1" />
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="gradleHome" value="" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
</set>
</option>
</GradleProjectSettings>
</option>
</component>
</project>

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lab_2/.idea/kotlinc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="KotlinJpsPluginSettings">
<option name="version" value="2.0.21" />
</component>
</project>

7
lab_2/.idea/misc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ExternalStorageConfigurationManager" enabled="true" />
<component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

6
lab_2/.idea/vcs.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/.." vcs="Git" />
</component>
</project>

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lab_2/build.gradle.kts Normal file
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import org.jetbrains.kotlin.gradle.utils.IMPLEMENTATION
plugins {
kotlin("jvm") version "2.0.21"
application
}
group = "org.exampl"
version = "1.0-SNAPSHOT"
repositories {
mavenCentral()
}
val lwjglVersion = "3.3.3"
val lwjglNatives = "natives-linux" // Для NixOS используем стандартные Linux-нативы
dependencies {
testImplementation(kotlin("test"))
implementation(platform("org.lwjgl:lwjgl-bom:$lwjglVersion"))
implementation("org.lwjgl:lwjgl")
implementation("org.lwjgl:lwjgl-glfw")
implementation("org.lwjgl:lwjgl-opengl")
runtimeOnly("org.lwjgl:lwjgl::$lwjglNatives")
runtimeOnly("org.lwjgl:lwjgl-glfw::$lwjglNatives")
runtimeOnly("org.lwjgl:lwjgl-opengl::$lwjglNatives")
}
application {
mainClass.set("org.exampl.MainKt")
}
tasks.test {
useJUnitPlatform()
}
kotlin {
jvmToolchain(21)
}

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lab_2/gradle.properties Normal file
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kotlin.code.style=official

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lab_2/gradle/wrapper/gradle-wrapper.jar vendored Normal file

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#Tue Apr 08 14:57:35 MSK 2025
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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lab_2/gradlew vendored Executable file
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#!/bin/sh
#
# Copyright © 2015-2021 the original authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
APP_NAME="Gradle"
APP_BASE_NAME=${0##*/}
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD=$JAVA_HOME/jre/sh/java
else
JAVACMD=$JAVA_HOME/bin/java
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# Collect all arguments for the java command;
# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
# shell script including quotes and variable substitutions, so put them in
# double quotes to make sure that they get re-expanded; and
# * put everything else in single quotes, so that it's not re-expanded.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
org.gradle.wrapper.GradleWrapperMain \
"$@"
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"

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lab_2/gradlew.bat vendored Normal file
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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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plugins {
id("org.gradle.toolchains.foojay-resolver-convention") version "0.8.0"
}
rootProject.name = "lab_2"

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package org.exampl
import java.io.File
import java.nio.ByteBuffer
import java.nio.ByteOrder
import java.nio.ShortBuffer
class Bin {
companion object {
var X = 0
var Y = 0
var Z = 0
lateinit var array: ShortArray
}
fun readBIN(path: String) {
if (File(path).exists()) {
val buffer = ByteBuffer.wrap(File(path).readBytes()).order(ByteOrder.LITTLE_ENDIAN)
X = buffer.int
Y = buffer.int
Z = buffer.int
buffer.position(buffer.position() + 3 * Float.SIZE_BYTES) // Пропуск значений масштаба
val arraySize = X * Y * Z
array = ShortArray(arraySize)
for (i in 0 until arraySize) {
array[i] = buffer.short
}
}
}
}

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package org.exampl
import org.lwjgl.glfw.GLFW.*
import org.lwjgl.opengl.GL11.*
import javax.swing.JFileChooser
import javax.swing.filechooser.FileNameExtensionFilter
class Form1 {
private var loaded = false
private var currentLayer = 0
private val bin = Bin()
private val view = View()
private var minTF = -3000
private var widthTF = 2000
private var frameCount = 0
private var nextFPSUpdate = System.currentTimeMillis() + 1000
fun displayFPS() {
if (System.currentTimeMillis() >= nextFPSUpdate) {
println("CT Visualizer (fps = $frameCount)")
nextFPSUpdate = System.currentTimeMillis() + 1000
frameCount = 0
}
frameCount++
}
fun openFileDialog() {
val fileChooser = JFileChooser()
fileChooser.fileFilter = FileNameExtensionFilter("BIN Files", "bin")
val result = fileChooser.showOpenDialog(null)
if (result == JFileChooser.APPROVE_OPTION) {
val file = fileChooser.selectedFile
bin.readBIN(file.absolutePath)
view.setupView(800, 600) // Установите размеры окна
loaded = true
}
}
fun run(window: Long) {
openFileDialog()
while (!glfwWindowShouldClose(window)) {
displayFPS()
if (loaded) {
view.drawQuads(currentLayer)
}
glfwSwapBuffers(window)
glfwPollEvents()
}
}
}

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package org.exampl
/*import org.lwjgl.opengl.GL
import org.lwjgl.opengl.GL11.*
import org.lwjgl.opengl.GL15.*
import org.lwjgl.opengl.GL20.*
import org.lwjgl.opengl.GL30.*
import org.lwjgl.system.MemoryUtil
import org.lwjgl.glfw.GLFW.*
import java.io.File
import java.nio.ByteBuffer
import java.nio.ByteOrder
import kotlin.math.*
class CTVisualizer {
private var window: Long = 0
private var vao = 0
private var vbo = 0
private var textureID = 0
private var shaderProgram = 0
private var currentLayer = 0
private var minValue = 0
private var maxValue = 40961
private var windowWidth = 1600
private var windowHeight = 1000
private lateinit var volumeData: ShortArray
private var width = 256 // Фиксированный размер для примера
private var height = 256
private var depth = 256
fun run(binFilePath: String) {
initWindow()
initOpenGL()
loadVolumeData(binFilePath)
mainLoop()
cleanup()
}
private fun initWindow() {
if (!glfwInit()) {
throw RuntimeException("Failed to initialize GLFW")
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3)
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3)
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE)
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE)
window = glfwCreateWindow(windowWidth, windowHeight, "КТ Визуализация (OpenTK/Kotlin)", 0, 0)
if (window == 0L) {
glfwTerminate()
throw RuntimeException("Failed to create GLFW window")
}
glfwMakeContextCurrent(window)
glfwSwapInterval(1)
glfwShowWindow(window)
}
private fun initOpenGL() {
GL.createCapabilities()
val vertexShader = """
#version 330 core
layout(location = 0) in vec2 position;
layout(location = 1) in vec2 texCoord;
out vec2 TexCoord;
void main() {
gl_Position = vec4(position, 0.0, 1.0);
TexCoord = texCoord;
}
""".trimIndent()
val fragmentShader = """
#version 330 core
in vec2 TexCoord;
out vec4 FragColor;
uniform sampler2D ourTexture;
void main() {
FragColor = texture(ourTexture, TexCoord);
}
""".trimIndent()
shaderProgram = createShaderProgram(vertexShader, fragmentShader)
vao = glGenVertexArrays()
vbo = glGenBuffers()
glBindVertexArray(vao)
glBindBuffer(GL_ARRAY_BUFFER, vbo)
val vertices = floatArrayOf(
-1.0f, -1.0f, 0.0f, 0.0f,
1.0f, -1.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f
)
val vertexBuffer = MemoryUtil.memAllocFloat(vertices.size)
vertexBuffer.put(vertices).flip()
glBufferData(GL_ARRAY_BUFFER, vertexBuffer, GL_STATIC_DRAW)
glVertexAttribPointer(0, 2, GL_FLOAT, false, 4 * 4, 0)
glVertexAttribPointer(1, 2, GL_FLOAT, false, 4 * 4, 2 * 4)
glEnableVertexAttribArray(0)
glEnableVertexAttribArray(1)
MemoryUtil.memFree(vertexBuffer)
textureID = glGenTextures()
glBindTexture(GL_TEXTURE_2D, textureID)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
}
private fun loadVolumeData(binFilePath: String) {
val file = File(binFilePath)
if (!file.exists()) {
throw IllegalArgumentException("File $binFilePath not found")
}
val buffer = ByteBuffer.wrap(file.readBytes())
.order(ByteOrder.LITTLE_ENDIAN)
.asShortBuffer()
volumeData = ShortArray(width * height * depth)
buffer.get(volumeData)
// Автоматическое определение min/max значений
minValue = volumeData.minOrNull()?.toInt() ?: 0
maxValue = volumeData.maxOrNull()?.toInt() ?: 4096
println("Loaded volume data: ${volumeData.size} voxels")
println("Value range: $minValue - $maxValue")
}
private fun updateTexture(layer: Int) {
val layerData = ByteBuffer.allocateDirect(width * height * 4)
for (y in 0 until height) {
for (x in 0 until width) {
val value = volumeData[x + y * width + layer * width * height].toInt()
val normalized = ((value - minValue).toFloat() / (maxValue - minValue).toFloat()).coerceIn(0f, 1f)
val color = (normalized * 255).toInt()
layerData.put(color.toByte())
layerData.put(color.toByte())
layerData.put(color.toByte())
layerData.put(255.toByte()) // Alpha
}
}
layerData.flip()
glBindTexture(GL_TEXTURE_2D, textureID)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, layerData)
}
private fun mainLoop() {
glClearColor(0.2f, 0.3f, 0.3f, 1.0f)
while (!glfwWindowShouldClose(window)) {
glClear(GL_COLOR_BUFFER_BIT)
updateTexture(currentLayer)
glUseProgram(shaderProgram)
glBindVertexArray(vao)
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4)
glfwSwapBuffers(window)
glfwPollEvents()
if (glfwGetKey(window, GLFW_KEY_UP) == GLFW_PRESS) {
currentLayer = min(currentLayer + 1, depth - 1)
}
if (glfwGetKey(window, GLFW_KEY_DOWN) == GLFW_PRESS) {
currentLayer = max(currentLayer - 1, 0)
}
}
}
private fun createShaderProgram(vertexShaderSource: String, fragmentShaderSource: String): Int {
val vertexShader = glCreateShader(GL_VERTEX_SHADER)
glShaderSource(vertexShader, vertexShaderSource)
glCompileShader(vertexShader)
val fragmentShader = glCreateShader(GL_FRAGMENT_SHADER)
glShaderSource(fragmentShader, fragmentShaderSource)
glCompileShader(fragmentShader)
val program = glCreateProgram()
glAttachShader(program, vertexShader)
glAttachShader(program, fragmentShader)
glLinkProgram(program)
glDeleteShader(vertexShader)
glDeleteShader(fragmentShader)
return program
}
private fun cleanup() {
glDeleteVertexArrays(vao)
glDeleteBuffers(vbo)
glDeleteTextures(textureID)
glDeleteProgram(shaderProgram)
glfwTerminate()
}
}
fun main() {
// Укажите путь к вашему .bin файлу
val binFilePath = "./testdata.bin"
CTVisualizer().run(binFilePath)
}*/
import org.lwjgl.glfw.GLFW.*
import org.lwjgl.opengl.GL
import org.lwjgl.opengl.GL11.glViewport
import org.lwjgl.system.MemoryUtil.NULL
import kotlin.system.exitProcess
fun main() {
if (!glfwInit()) {
throw IllegalStateException("Unable to initialize GLFW")
}
glfwDefaultWindowHints()
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE)
glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE)
val window = glfwCreateWindow(800, 600, "CT Visualizer", NULL, NULL)
if (window == NULL) {
throw RuntimeException("Failed to create the GLFW window")
}
glfwSetFramebufferSizeCallback(window) { _: Long, width: Int, height: Int ->
glViewport(0, 0, width, height)
}
glfwMakeContextCurrent(window)
glfwSwapInterval(1)
glfwShowWindow(window)
GL.createCapabilities()
val form1 = Form1()
form1.run(window)
glfwTerminate()
exitProcess(0)
}

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package org.exampl
import java.awt.Color
object TransferHelper {
private var min = -3000
private var max = 16000
fun setTF(newMin: Int, newMax: Int) {
min = newMin
max = newMax
}
fun transferFunction(value: Short): Color {
val newVal = Math.max(0, Math.min((value - min) * 255 / (max - min), 255))
return Color(newVal, newVal, newVal)
}
}

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package org.exampl
import org.lwjgl.opengl.GL11.*
import java.awt.Color
import java.awt.image.BufferedImage
import java.nio.ByteBuffer
class View {
fun setupView(width: Int, height: Int) {
glShadeModel(GL_SMOOTH)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
glOrtho(0.0, Bin.X.toDouble(), 0.0, Bin.Y.toDouble(), -1.0, 1.0)
glViewport(0, 0, width, height)
}
fun drawQuads(layerNumber: Int) {
glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT)
glBegin(GL_QUADS)
for (x in 0 until Bin.X - 1) {
for (y in 0 until Bin.Y - 1) {
val value1 = Bin.array[x + y * Bin.X + layerNumber * Bin.X * Bin.Y]
val value2 = Bin.array[x + (y + 1) * Bin.X + layerNumber * Bin.X * Bin.Y]
val value3 = Bin.array[x + 1 + (y + 1) * Bin.X + layerNumber * Bin.X * Bin.Y]
val value4 = Bin.array[x + 1 + y * Bin.X + layerNumber * Bin.X * Bin.Y]
val color1 = TransferHelper.transferFunction(value1)
val color2 = TransferHelper.transferFunction(value2)
val color3 = TransferHelper.transferFunction(value3)
val color4 = TransferHelper.transferFunction(value4)
glColor3f(color1.red / 255.0f, color1.green / 255.0f, color1.blue / 255.0f)
glVertex2f(x.toFloat(), y.toFloat())
glColor3f(color2.red / 255.0f, color2.green / 255.0f, color2.blue / 255.0f)
glVertex2f(x.toFloat(), (y + 1).toFloat())
glColor3f(color3.red / 255.0f, color3.green / 255.0f, color3.blue / 255.0f)
glVertex2f((x + 1).toFloat(), (y + 1).toFloat())
glColor3f(color4.red / 255.0f, color4.green / 255.0f, color4.blue / 255.0f)
glVertex2f((x + 1).toFloat(), y.toFloat())
}
}
glEnd()
}
fun drawQuadStrip(layerNumber: Int) {
glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT)
for (x in 0 until Bin.X - 1) {
glBegin(GL_QUAD_STRIP)
for (y in 0 until Bin.Y) {
val value1 = Bin.array[x + y * Bin.X + layerNumber * Bin.X * Bin.Y]
val value2 = Bin.array[x + 1 + y * Bin.X + layerNumber * Bin.X * Bin.Y]
val color1 = TransferHelper.transferFunction(value1)
val color2 = TransferHelper.transferFunction(value2)
glColor3f(color1.red / 255.0f, color1.green / 255.0f, color1.blue / 255.0f)
glVertex2f(x.toFloat(), y.toFloat())
glColor3f(color2.red / 255.0f, color2.green / 255.0f, color2.blue / 255.0f)
glVertex2f((x + 1).toFloat(), y.toFloat())
}
glEnd()
}
}
private lateinit var textureImage: BufferedImage
private var textureID: Int = 0
fun generateTextureImage(layerNumber: Int) {
textureImage = BufferedImage(Bin.X, Bin.Y, BufferedImage.TYPE_INT_ARGB)
for (x in 0 until Bin.X) {
for (y in 0 until Bin.Y) {
val pixelNumber = x + y * Bin.X + layerNumber * Bin.X * Bin.Y
val color = TransferHelper.transferFunction(Bin.array[pixelNumber])
textureImage.setRGB(x, y, color.rgb)
}
}
}
fun drawTexture() {
glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT)
glEnable(GL_TEXTURE_2D)
glBindTexture(GL_TEXTURE_2D, textureID)
glBegin(GL_QUADS)
glColor3f(1f, 1f, 1f)
glTexCoord2f(0f, 0f)
glVertex2f(0f, 0f)
glTexCoord2f(0f, 1f)
glVertex2f(0f, Bin.Y.toFloat())
glTexCoord2f(1f, 1f)
glVertex2f(Bin.X.toFloat(), Bin.Y.toFloat())
glTexCoord2f(1f, 0f)
glVertex2f(Bin.X.toFloat(), 0f)
glEnd()
glDisable(GL_TEXTURE_2D)
}
fun load2DTexture() {
textureID = glGenTextures()
glBindTexture(GL_TEXTURE_2D, textureID)
val pixels = IntArray(Bin.X * Bin.Y)
textureImage.getRGB(0, 0, Bin.X, Bin.Y, pixels, 0, Bin.X)
val pixelBuffer = ByteBuffer.allocateDirect(pixels.size * 4)
for (pixel in pixels) {
val r = (pixel shr 16) and 0xFF
val g = (pixel shr 8) and 0xFF
val b = pixel and 0xFF
val a = (pixel shr 24) and 0xFF
pixelBuffer.put(r.toByte()).put(g.toByte()).put(b.toByte()).put(a.toByte())
}
pixelBuffer.flip()
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, Bin.X, Bin.Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixelBuffer)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
}
}

BIN
lab_2/testdata.bin Normal file

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