chore: Move everything into package/ (#1745)

* Move everything into package * Remove .DS_Store * Move scripts and eslintrc to package * Create CODE_OF_CONDUCT.md * fix some links * Update all links (I think) * Update generated docs * Update notice-yarn-changes.yml * Update validate-android.yml * Update validate-cpp.yml * Delete notice-yarn-changes.yml * Update validate-cpp.yml * Update validate-cpp.yml * Update validate-js.yml * Update validate-cpp.yml * Update validate-cpp.yml * wrong c++ style * Revert "wrong c++ style" This reverts commit 55a3575589c6f13f8b05134d83384f55e0601ab2.
2023-09-01 18:15:28 +02:00
parent 2a5c33323b
commit 036856aed5
347 changed files with 3088 additions and 154 deletions
--- a/package/android/src/main/cpp/PassThroughShader.cpp
+++ b/package/android/src/main/cpp/PassThroughShader.cpp
@@ -0,0 +1,111 @@
+//
+// Created by Marc Rousavy on 28.08.23.
+//
+
+#include "PassThroughShader.h"
+#include "OpenGLError.h"
+#include <EGL/egl.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#include <memory>
+#include <string>
+
+namespace vision {
+
+PassThroughShader::~PassThroughShader() {
+  if (_programId != NO_SHADER) {
+    glDeleteProgram(_programId);
+    _programId = NO_SHADER;
+  }
+
+  if (_vertexBuffer != NO_BUFFER) {
+    glDeleteBuffers(1, &_vertexBuffer);
+    _vertexBuffer = NO_BUFFER;
+  }
+}
+
+void PassThroughShader::draw(const OpenGLTexture& texture, float* transformMatrix) {
+  // 1. Set up Shader Program
+  if (_programId == NO_SHADER) {
+    _programId = createProgram();
+    glUseProgram(_programId);
+    _vertexParameters = {
+        .aPosition = glGetAttribLocation(_programId, "aPosition"),
+        .aTexCoord = glGetAttribLocation(_programId, "aTexCoord"),
+        .uTransformMatrix = glGetUniformLocation(_programId, "uTransformMatrix"),
+    };
+    _fragmentParameters = {
+        .uTexture = glGetUniformLocation(_programId, "uTexture"),
+    };
+  }
+
+  glUseProgram(_programId);
+
+  // 2. Set up Vertices Buffer
+  if (_vertexBuffer == NO_BUFFER) {
+    glGenBuffers(1, &_vertexBuffer);
+    glBindBuffer(GL_ARRAY_BUFFER, _vertexBuffer);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(VERTICES), VERTICES, GL_STATIC_DRAW);
+  }
+
+  // 3. Pass all uniforms/attributes for vertex shader
+  glEnableVertexAttribArray(_vertexParameters.aPosition);
+  glVertexAttribPointer(_vertexParameters.aPosition, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex),
+                        reinterpret_cast<void*>(offsetof(Vertex, position)));
+
+  glEnableVertexAttribArray(_vertexParameters.aTexCoord);
+  glVertexAttribPointer(_vertexParameters.aTexCoord, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex),
+                        reinterpret_cast<void*>(offsetof(Vertex, texCoord)));
+
+  glUniformMatrix4fv(_vertexParameters.uTransformMatrix, 1, GL_FALSE, transformMatrix);
+
+  // 4. Pass texture to fragment shader
+  glActiveTexture(GL_TEXTURE0);
+  glBindTexture(texture.target, texture.id);
+  glUniform1i(_fragmentParameters.uTexture, 0);
+
+  // 5. Draw!
+  glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+}
+
+GLuint PassThroughShader::loadShader(GLenum shaderType, const char* shaderCode) {
+  GLuint shader = glCreateShader(shaderType);
+  if (shader == 0)
+    throw OpenGLError("Failed to load shader!");
+
+  glShaderSource(shader, 1, &shaderCode, nullptr);
+  glCompileShader(shader);
+  GLint compileStatus = GL_FALSE;
+  glGetShaderiv(shader, GL_COMPILE_STATUS, &compileStatus);
+  if (compileStatus == GL_FALSE) {
+    glDeleteShader(shader);
+    throw OpenGLError("Failed to compile shader!");
+  }
+  return shader;
+}
+
+GLuint PassThroughShader::createProgram() {
+  GLuint vertexShader = loadShader(GL_VERTEX_SHADER, VERTEX_SHADER);
+  GLuint fragmentShader = loadShader(GL_FRAGMENT_SHADER, FRAGMENT_SHADER);
+
+  GLuint program = glCreateProgram();
+  if (program == 0)
+    throw OpenGLError("Failed to create pass-through program!");
+
+  glAttachShader(program, vertexShader);
+  OpenGLError::checkIfError("Failed to attach Vertex Shader!");
+
+  glAttachShader(program, fragmentShader);
+  OpenGLError::checkIfError("Failed to attach Fragment Shader!");
+
+  glLinkProgram(program);
+  GLint linkStatus = GL_FALSE;
+  glGetProgramiv(program, GL_LINK_STATUS, &linkStatus);
+  if (!linkStatus) {
+    glDeleteProgram(program);
+    throw OpenGLError("Failed to load pass-through program!");
+  }
+  return program;
+}
+
+} // namespace vision