fl_pixel_buffer_texture_private.h File Reference

#include "flutter/shell/platform/embedder/embedder.h"
#include "flutter/shell/platform/linux/public/flutter_linux/fl_pixel_buffer_texture.h"
#include "flutter/shell/platform/linux/public/flutter_linux/fl_texture_registrar.h"

Go to the source code of this file.

Functions
G_BEGIN_DECLS gboolean	fl_pixel_buffer_texture_populate (FlPixelBufferTexture *texture, uint32_t width, uint32_t height, FlutterOpenGLTexture *opengl_texture, GError **error)

Function Documentation

fl_pixel_buffer_texture_populate()

G_BEGIN_DECLS gboolean fl_pixel_buffer_texture_populate	(	FlPixelBufferTexture *	texture,
		uint32_t	width,
		uint32_t	height,
		FlutterOpenGLTexture *	opengl_texture,
		GError **	error
	)

fl_pixel_buffer_texture_populate: @texture: an #FlPixelBufferTexture. @width: width of the texture. @height: height of the texture. @opengl_texture: (out): return an FlutterOpenGLTexture. @error: (allow-none): #GError location to store the error occurring, or NULL to ignore.

Attempts to populate the specified @opengl_texture with texture details such as the name, width, height and the pixel format.

Returns: TRUE on success.

Definition at line 71 of file fl_pixel_buffer_texture.cc.

                                                          {
  FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(texture);
  FlPixelBufferTexturePrivate* priv =
      reinterpret_cast<FlPixelBufferTexturePrivate*>(
          fl_pixel_buffer_texture_get_instance_private(self));
 
  const uint8_t* buffer = nullptr;
  if (!FL_PIXEL_BUFFER_TEXTURE_GET_CLASS(self)->copy_pixels(
          self, &buffer, &width, &height, error)) {
    return FALSE;
  }
 
  if (priv->texture_id == 0) {
    glGenTextures(1, &priv->texture_id);
    check_gl_error(__LINE__);
    glBindTexture(GL_TEXTURE_2D, priv->texture_id);
    check_gl_error(__LINE__);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
    check_gl_error(__LINE__);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
    check_gl_error(__LINE__);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    check_gl_error(__LINE__);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    check_gl_error(__LINE__);
  } else {
    glBindTexture(GL_TEXTURE_2D, priv->texture_id);
    check_gl_error(__LINE__);
  }
  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA,
               GL_UNSIGNED_BYTE, buffer);
  check_gl_error(__LINE__);
 
  opengl_texture->target = GL_TEXTURE_2D;
  opengl_texture->name = priv->texture_id;
  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;
}