GLVideoView::GLVideoView (FilmViewer* viewer, wxWindow *parent)
: VideoView (viewer)
, _context (nullptr)
- , _have_storage (false)
, _vsync_enabled (false)
, _playing (false)
, _one_shot (false)
/* XXX: video range conversion */
/* XXX: subs */
- if (image->size() != _video_size) {
- _have_storage = false;
- }
-
- _video_size = image->size ();
- glPixelStorei (GL_UNPACK_ALIGNMENT, _optimise_for_j2k ? 2 : 1);
- check_gl_error ("glPixelStorei");
-
- auto const format = _optimise_for_j2k ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE;
-
- if (_have_storage) {
- glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, _video_size->width, _video_size->height, GL_RGB, format, image->data()[0]);
- check_gl_error ("glTexSubImage2D");
- } else {
- glTexImage2D (GL_TEXTURE_2D, 0, _optimise_for_j2k ? GL_RGBA12 : GL_RGBA8, _video_size->width, _video_size->height, 0, GL_RGB, format, image->data()[0]);
- check_gl_error ("glTexImage2D");
+ auto const changed = _video_texture->set (image);
+ if (changed) {
auto const canvas_size = _canvas_size.load();
int const canvas_width = canvas_size.GetWidth();
int const canvas_height = canvas_size.GetHeight();
- float const image_x = float(_video_size->width) / canvas_width;
- float const image_y = float(_video_size->height) / canvas_height;
+ float const image_x = float(image->size().width) / canvas_width;
+ float const image_y = float(image->size().height) / canvas_height;
auto x_pixels_to_gl = [canvas_width](int x) {
return (x * 2.0f / canvas_width) - 1.0f;
/* Set the vertex shader's input data (GL_ARRAY_BUFFER) */
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
check_gl_error ("glBufferData");
-
- _have_storage = true;
}
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
_vsync_enabled = true;
#endif
- _video_texture.reset(new Texture());
+ _video_texture.reset(new Texture(_optimise_for_j2k ? 2 : 1));
_video_texture->bind();
while (true) {
}
-Texture::Texture ()
+Texture::Texture (GLint unpack_alignment)
+ : _unpack_alignment (unpack_alignment)
{
glGenTextures (1, &_name);
check_gl_error ("glGenTextures");
check_gl_error ("glBindTexture");
}
+
+bool
+Texture::set (shared_ptr<const Image> image)
+{
+ auto const create = !_size || image->size() != _size;
+ _size = image->size();
+
+ glPixelStorei (GL_UNPACK_ALIGNMENT, _unpack_alignment);
+ check_gl_error ("glPixelStorei");
+
+ auto const format = image->pixel_format() == AV_PIX_FMT_RGB24 ? GL_UNSIGNED_BYTE : GL_UNSIGNED_SHORT;
+ auto const internal_format = image->pixel_format() == AV_PIX_FMT_RGB24 ? GL_RGBA8 : GL_RGBA12;
+
+ if (create) {
+ glTexImage2D (GL_TEXTURE_2D, 0, internal_format, _size->width, _size->height, 0, GL_RGB, format, image->data()[0]);
+ check_gl_error ("glTexImage2D");
+ } else {
+ glTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, _size->width, _size->height, GL_RGB, format, image->data()[0]);
+ check_gl_error ("glTexSubImage2D");
+ }
+
+ return create;
+}
+