Flutter Linux Embedder
fl_pixel_buffer_texture.cc File Reference

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Classes

struct  FlPixelBufferTexturePrivate
 

Functions

static void fl_pixel_buffer_texture_iface_init (FlTextureInterface *iface)
 
 G_DEFINE_TYPE_WITH_CODE (FlPixelBufferTexture, fl_pixel_buffer_texture, G_TYPE_OBJECT, G_IMPLEMENT_INTERFACE(fl_texture_get_type(), fl_pixel_buffer_texture_iface_init);G_ADD_PRIVATE(FlPixelBufferTexture)) static void fl_pixel_buffer_texture_set_id(FlTexture *texture
 
static int64_t fl_pixel_buffer_texture_get_id (FlTexture *texture)
 
static void fl_pixel_buffer_texture_dispose (GObject *object)
 
static void check_gl_error (int line)
 
gboolean fl_pixel_buffer_texture_populate (FlPixelBufferTexture *texture, uint32_t width, uint32_t height, FlutterOpenGLTexture *opengl_texture, GError **error)
 
static void fl_pixel_buffer_texture_class_init (FlPixelBufferTextureClass *klass)
 
static void fl_pixel_buffer_texture_init (FlPixelBufferTexture *self)
 

Variables

int64_t id
 
FlPixelBufferTexturePrivatepriv
 

Function Documentation

◆ check_gl_error()

static void check_gl_error ( int  line)
static

Definition at line 64 of file fl_pixel_buffer_texture.cc.

64  {
65  GLenum err = glGetError();
66  if (err) {
67  g_warning("glGetError %x (%s:%d)\n", err, __FILE__, line);
68  }
69 }

Referenced by fl_pixel_buffer_texture_populate().

◆ fl_pixel_buffer_texture_class_init()

static void fl_pixel_buffer_texture_class_init ( FlPixelBufferTextureClass *  klass)
static

Definition at line 119 of file fl_pixel_buffer_texture.cc.

120  {
121  G_OBJECT_CLASS(klass)->dispose = fl_pixel_buffer_texture_dispose;
122 }

References fl_pixel_buffer_texture_dispose().

◆ fl_pixel_buffer_texture_dispose()

static void fl_pixel_buffer_texture_dispose ( GObject *  object)
static

Definition at line 50 of file fl_pixel_buffer_texture.cc.

50  {
51  FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(object);
53  reinterpret_cast<FlPixelBufferTexturePrivate*>(
54  fl_pixel_buffer_texture_get_instance_private(self));
55 
56  if (priv->texture_id) {
57  glDeleteTextures(1, &priv->texture_id);
58  priv->texture_id = 0;
59  }
60 
61  G_OBJECT_CLASS(fl_pixel_buffer_texture_parent_class)->dispose(object);
62 }

References priv, and FlPixelBufferTexturePrivate::texture_id.

Referenced by fl_pixel_buffer_texture_class_init().

◆ fl_pixel_buffer_texture_get_id()

static int64_t fl_pixel_buffer_texture_get_id ( FlTexture *  texture)
static

Definition at line 37 of file fl_pixel_buffer_texture.cc.

37  {
38  FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(texture);
40  reinterpret_cast<FlPixelBufferTexturePrivate*>(
41  fl_pixel_buffer_texture_get_instance_private(self));
42  return priv->id;
43 }

References FlPixelBufferTexturePrivate::id, and priv.

Referenced by fl_pixel_buffer_texture_iface_init().

◆ fl_pixel_buffer_texture_iface_init()

static void fl_pixel_buffer_texture_iface_init ( FlTextureInterface *  iface)
static

Definition at line 45 of file fl_pixel_buffer_texture.cc.

45  {
46  iface->set_id = fl_pixel_buffer_texture_set_id;
47  iface->get_id = fl_pixel_buffer_texture_get_id;
48 }

References fl_pixel_buffer_texture_get_id().

◆ fl_pixel_buffer_texture_init()

static void fl_pixel_buffer_texture_init ( FlPixelBufferTexture *  self)
static

Definition at line 124 of file fl_pixel_buffer_texture.cc.

124 {}

◆ fl_pixel_buffer_texture_populate()

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.

75  {
76  FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(texture);
78  reinterpret_cast<FlPixelBufferTexturePrivate*>(
79  fl_pixel_buffer_texture_get_instance_private(self));
80 
81  const uint8_t* buffer = nullptr;
82  if (!FL_PIXEL_BUFFER_TEXTURE_GET_CLASS(self)->copy_pixels(
83  self, &buffer, &width, &height, error)) {
84  return FALSE;
85  }
86 
87  if (priv->texture_id == 0) {
88  glGenTextures(1, &priv->texture_id);
89  check_gl_error(__LINE__);
90  glBindTexture(GL_TEXTURE_2D, priv->texture_id);
91  check_gl_error(__LINE__);
92  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
93  check_gl_error(__LINE__);
94  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
95  check_gl_error(__LINE__);
96  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
97  check_gl_error(__LINE__);
98  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
99  check_gl_error(__LINE__);
100  } else {
101  glBindTexture(GL_TEXTURE_2D, priv->texture_id);
102  check_gl_error(__LINE__);
103  }
104  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA,
105  GL_UNSIGNED_BYTE, buffer);
106  check_gl_error(__LINE__);
107 
108  opengl_texture->target = GL_TEXTURE_2D;
109  opengl_texture->name = priv->texture_id;
110  opengl_texture->format = GL_RGBA8;
111  opengl_texture->destruction_callback = nullptr;
112  opengl_texture->user_data = nullptr;
113  opengl_texture->width = width;
114  opengl_texture->height = height;
115 
116  return TRUE;
117 }

References buffer, check_gl_error(), error, height, priv, FlPixelBufferTexturePrivate::texture_id, TRUE, and width.

Referenced by fl_engine_gl_external_texture_frame_callback(), and TEST().

◆ G_DEFINE_TYPE_WITH_CODE()

G_DEFINE_TYPE_WITH_CODE ( FlPixelBufferTexture  ,
fl_pixel_buffer_texture  ,
G_TYPE_OBJECT  ,
G_IMPLEMENT_INTERFACE(fl_texture_get_type(), fl_pixel_buffer_texture_iface_init);G_ADD_PRIVATE(FlPixelBufferTexture)   
)

Variable Documentation

◆ id

priv id
Initial value:
{
FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(texture)

Definition at line 28 of file fl_pixel_buffer_texture.cc.

Referenced by flutter::testing::CreateSemanticsNode(), G_DECLARE_INTERFACE(), and TEST().

◆ priv

Initial value:
=
reinterpret_cast<FlPixelBufferTexturePrivate*>(
fl_pixel_buffer_texture_get_instance_private(self))

Definition at line 30 of file fl_pixel_buffer_texture.cc.

Referenced by clear_client(), fl_accessible_node_dispose(), fl_accessible_node_do_action(), fl_accessible_node_get_extents(), fl_accessible_node_get_index_in_parent(), fl_accessible_node_get_n_actions(), fl_accessible_node_get_n_children(), fl_accessible_node_get_name(), fl_accessible_node_get_parent(), fl_accessible_node_get_role(), fl_accessible_node_init(), fl_accessible_node_perform_action_impl(), fl_accessible_node_ref_child(), fl_accessible_node_ref_state_set(), fl_accessible_node_set_actions_impl(), fl_accessible_node_set_children(), fl_accessible_node_set_extents_impl(), fl_accessible_node_set_flags_impl(), fl_accessible_node_set_name_impl(), fl_accessible_node_set_parent(), fl_accessible_node_set_property(), fl_pixel_buffer_texture_dispose(), fl_pixel_buffer_texture_get_id(), fl_pixel_buffer_texture_populate(), fl_renderer_cleanup(), fl_renderer_dispose(), fl_renderer_init(), fl_renderer_present_layers(), fl_renderer_render(), fl_renderer_setup(), fl_renderer_start(), fl_renderer_unblock_main_thread(), fl_renderer_wait_for_frame(), fl_text_input_plugin_dispose(), fl_text_input_plugin_filter_keypress_default(), fl_text_input_plugin_init(), fl_text_input_plugin_new(), get_action(), hide(), im_commit_cb(), im_delete_surrounding_cb(), im_preedit_changed_cb(), im_preedit_end_cb(), im_preedit_start_cb(), im_retrieve_surrounding_cb(), init_im_context(), perform_action(), set_client(), set_editable_size_and_transform(), set_editing_state(), set_marked_text_rect(), show(), update_editing_state(), update_editing_state_with_delta(), and update_im_cursor_position().

priv
FlPixelBufferTexturePrivate * priv
Definition: fl_pixel_buffer_texture.cc:30
height
G_BEGIN_DECLS int height
Definition: fl_backing_store_provider.h:37
TRUE
return TRUE
Definition: fl_pixel_buffer_texture_test.cc:53
FlPixelBufferTexturePrivate::id
int64_t id
Definition: fl_pixel_buffer_texture.cc:13
FlPixelBufferTexturePrivate::texture_id
GLuint texture_id
Definition: fl_pixel_buffer_texture.cc:14
check_gl_error
static void check_gl_error(int line)
Definition: fl_pixel_buffer_texture.cc:64
error
const uint8_t uint32_t uint32_t GError ** error
Definition: fl_pixel_buffer_texture_test.cc:40
fl_pixel_buffer_texture_get_id
static int64_t fl_pixel_buffer_texture_get_id(FlTexture *texture)
Definition: fl_pixel_buffer_texture.cc:37
fl_pixel_buffer_texture_dispose
static void fl_pixel_buffer_texture_dispose(GObject *object)
Definition: fl_pixel_buffer_texture.cc:50
buffer
static const uint8_t buffer[]
Definition: fl_pixel_buffer_texture_test.cc:44
width
const uint8_t uint32_t * width
Definition: fl_pixel_buffer_texture_test.cc:38
FlPixelBufferTexturePrivate
Definition: fl_pixel_buffer_texture.cc:12