shell/platform/linux/fl_texture_gl.cc

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "flutter/shell/platform/linux/public/flutter_linux/fl_texture_gl.h"
#include "flutter/shell/platform/linux/fl_texture_gl_private.h"

#include <epoxy/gl.h>
#include <gmodule.h>
#include <cstdio>

// Added here to stop the compiler from optimising this function away.
G_MODULE_EXPORT GType fl_texture_gl_get_type();

static void fl_texture_gl_texture_iface_init(FlTextureInterface* iface) {}

G_DEFINE_TYPE_WITH_CODE(FlTextureGL,
                        fl_texture_gl,
                        G_TYPE_OBJECT,
                        G_IMPLEMENT_INTERFACE(fl_texture_get_type(),
                                              fl_texture_gl_texture_iface_init))

static void fl_texture_gl_class_init(FlTextureGLClass* klass) {}

static void fl_texture_gl_init(FlTextureGL* self) {}

gboolean fl_texture_gl_populate(FlTextureGL* self,
                                uint32_t width,
                                uint32_t height,
                                FlutterOpenGLTexture* opengl_texture,
                                GError** error) {
  uint32_t target = 0, name = 0;
  if (!FL_TEXTURE_GL_GET_CLASS(self)->populate(self, &target, &name, &width,
                                               &height, error)) {
    return FALSE;
  }

  opengl_texture->target = target;
  opengl_texture->name = name;
  opengl_texture->format = GL_RGBA8;
  opengl_texture->destruction_callback = nullptr;
  opengl_texture->user_data = nullptr;
  opengl_texture->width = width;
  opengl_texture->height = height;

  return TRUE;
}