[Android OpenGL Texture] #android #opengl #texture2d

render_frame.cpp

#include "render_frame.h"

void RenderFrame::initialize() {
  glGenTextures(1, &colorAttachmentId);
  glBindTexture(GL_TEXTURE_2D, colorAttachmentId);
  glBindTexture(GL_TEXTURE_2D, 0); // unbind
}

void RenderFrame::submitFrame(void *frame) {
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_G, GL_RED);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B, GL_RED);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, frame);
  glBindTexture(GL_TEXTURE_2D, 0);
}

render_frame.h

#include <GLES3/gl3.h>

class RenderFrame {
public:
  void initialize();
  void submitFrame(void *frame);

private:
  GLuint colorAttachmentId;
};