G_MODULE_EXPORT gint
test_text_main (gint argc,
gchar **argv)
{
ClutterActor *stage;
ClutterActor *text, *text2;
ClutterColor text_color = { 0x33, 0xff, 0x33, 0xff };
ClutterColor cursor_color = { 0xff, 0x33, 0x33, 0xff };
ClutterTextBuffer *buffer;
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
return 1;
stage = clutter_stage_new ();
clutter_stage_set_title (CLUTTER_STAGE (stage), "Text Editing");
clutter_actor_set_background_color (stage, CLUTTER_COLOR_Black);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
buffer = clutter_text_buffer_new_with_text ("·", -1);
text = clutter_text_new_with_buffer (buffer);
clutter_text_set_font_name (CLUTTER_TEXT (text), FONT);
clutter_text_set_color (CLUTTER_TEXT (text), &text_color);
clutter_container_add (CLUTTER_CONTAINER (stage), text, NULL);
clutter_actor_set_position (text, 40, 30);
clutter_actor_set_width (text, 1024);
clutter_text_set_line_wrap (CLUTTER_TEXT (text), TRUE);
clutter_actor_set_reactive (text, TRUE);
clutter_stage_set_key_focus (CLUTTER_STAGE (stage), text);
clutter_text_set_editable (CLUTTER_TEXT (text), TRUE);
clutter_text_set_selectable (CLUTTER_TEXT (text), TRUE);
clutter_text_set_cursor_color (CLUTTER_TEXT (text), &cursor_color);
clutter_text_set_selected_text_color (CLUTTER_TEXT (text), CLUTTER_COLOR_Blue);
text2 = clutter_text_new_with_buffer (buffer);
clutter_text_set_color (CLUTTER_TEXT (text2), &text_color);
clutter_container_add (CLUTTER_CONTAINER (stage), text2, NULL);
clutter_actor_set_position (text2, 40, 300);
clutter_actor_set_width (text2, 1024);
clutter_text_set_line_wrap (CLUTTER_TEXT (text2), TRUE);
clutter_actor_set_reactive (text2, TRUE);
clutter_text_set_editable (CLUTTER_TEXT (text2), TRUE);
clutter_text_set_selectable (CLUTTER_TEXT (text2), TRUE);
clutter_text_set_cursor_color (CLUTTER_TEXT (text2), &cursor_color);
clutter_text_set_selected_text_color (CLUTTER_TEXT (text2), CLUTTER_COLOR_Green);
if (argv[1])
{
GError *error = NULL;
gchar *utf8;
g_file_get_contents (argv[1], &utf8, NULL, &error);
if (error)
{
utf8 = g_strconcat ("Unable to open '", argv[1], "':\n",
error->message,
NULL);
g_error_free (error);
}
clutter_text_set_text (CLUTTER_TEXT (text), utf8);
}
else
clutter_text_set_text (CLUTTER_TEXT (text), runes);
clutter_actor_set_size (stage, 1024, 768);
clutter_actor_show (stage);
clutter_main ();
return EXIT_SUCCESS;
}
Animation::Animation(ClutterActor *stage, TCLControl *tcl) {
printf("Building animation tools...\n");
//====================
// On screen display:
// Build the Actor that will display what's going to the lights:
lightDisplay = clutter_actor_new();
// Build the color delegate for the lightDisplay's content/texture:
colors = clutter_image_new();
// Error object for GDK/Clutter calls that need them
error = NULL;
// Load image data from some other data source...:
// guchar *data =
// GdkPixbuf *pixbuf = gdk_pixbuf_new_from_data(data);
// Load image data from a file:
// const char *img_path = "./wut.png";
// GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file_at_size (img_path, WIDTH, HEIGHT, &error);
// Build the color buffer we'll store the actual colors in:
pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, WIDTH, HEIGHT);
pixels = gdk_pixbuf_get_pixels(pixbuf); // Grab it's pixels...
rowstride = gdk_pixbuf_get_rowstride(pixbuf); // figure out the width of the buffer...
// And put some RED into the buffer to start off with
for (int x = 0; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
// Find the ADDRESS of each pixel in the pixbuf via the raw char buffer we built...
// and bind it to a pointer to a char...
unsigned char *pixel = &pixels[y * rowstride + x * 3];
// And directly update that memory location with a new color
// This AUTOMATICALLY updates the color of the pixbuf!
// It's just hitting the memory directly!
pixel[0] = 255;//red
pixel[1] = 0x0;//green
pixel[2] = 0x0;//blue
}
}
// Dump the colors from the color buffer into the ClutterContent delegate!
if (pixbuf != NULL) {
clutter_image_set_data(CLUTTER_IMAGE(colors),
gdk_pixbuf_get_pixels (pixbuf),
COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
gdk_pixbuf_get_rowstride (pixbuf),
&error);
}
// Tell the lightDisplay that it's content should be whatever we've dumped in the content delegate:
clutter_actor_set_content(lightDisplay, colors);
// Define the size of the On Screen Display:
clutter_actor_set_x_expand(lightDisplay, TRUE);
clutter_actor_set_y_expand(lightDisplay, TRUE);
clutter_actor_set_position(lightDisplay, 0, WIDTH*(osd_scale+7)+WIDTH);
clutter_actor_set_size(lightDisplay, WIDTH, HEIGHT);
clutter_actor_set_scale(lightDisplay, osd_scale, osd_scale+7);
clutter_actor_set_rotation_angle(lightDisplay, CLUTTER_Z_AXIS, -90);
// Actually add that actor to the stage!
clutter_actor_add_child(stage, lightDisplay);
// Allow for UI events on this crazy thing!
clutter_actor_set_reactive(lightDisplay, TRUE);
// Wire up the event listener on this lightDisplay actor.
TouchData *touch_data;
touch_data = g_slice_new(TouchData); // reserve memory for it...
touch_data->lightDisplay = lightDisplay; // Place the button actor itself inside the struct
touch_data->tcl = tcl; // TCLControl *tcl is just a POINTER here (unlike in main.cpp)
touch_data->animationNumber = ¤tAnimation;
// Actually wire up the events and set up the data structs that the events need to operate:
g_signal_connect(lightDisplay, "touch-event", G_CALLBACK(handleTouchEvents), touch_data);
g_signal_connect(lightDisplay, "button-press-event", G_CALLBACK(handleTouchEvents), touch_data);
g_signal_connect(lightDisplay, "motion-event", G_CALLBACK(handleTouchEvents), touch_data);
g_signal_connect(lightDisplay, "button-release-event", G_CALLBACK(handleTouchEvents), touch_data);
// Set sane default values for the initial touch location
input_y = 0;
input_x = 0;
// End On screen display
//=============================
// Shader setup and wirings:
// Build the Actor that the shader will dump to directly:
shaderOutput = clutter_actor_new();
clutter_actor_set_position(shaderOutput, 0, 0);
clutter_actor_set_size(shaderOutput, WIDTH-1, HEIGHT);
clutter_actor_set_rotation_angle(shaderOutput, CLUTTER_Z_AXIS, -90);
clutter_actor_set_rotation_angle(shaderOutput, CLUTTER_Y_AXIS, 180);
clutter_actor_add_child(stage, shaderOutput);
// Allocate the memory for the shader output buffer:
// Figure out how big our buffer needs to be. *4 because four bytes per pixel (r, g, b, a) in shader land
int shaderBufferSize = WIDTH * HEIGHT * 4;
shaderBuffer = (guint8 *) malloc(shaderBufferSize); // malloc the buffer!!
// Double check that we built the buffer correctly.
if (shaderBuffer == NULL) {
printf("OOPS! malloc error!\n");
} else {
// printf("We malloc'd %i bytes for your shaderBuffer. It points at: %p\n", shaderBufferSize, shaderBuffer);
// printf(" The Rowstride on the shaderBuffer is %i\n", rowstride);
}
// init shader TEXTURES!
// Populate the noiseImage:
// const char *textureFile = "images/text_noise.png";
// audiopixbuf = gdk_pixbuf_new_from_file (textureFile, NULL);
// Init the audioImage that will store the FFT output for attaching to the actor
error = NULL;
audioImage = clutter_image_new ();
audiopixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, WIDTH, HEIGHT );
audioPixels = gdk_pixbuf_get_pixels(audiopixbuf); // Grab it's pixels...
audioRowstride = gdk_pixbuf_get_rowstride(audiopixbuf); // figure out the width of the buffer...
// Populate the audioImage with no data so we have a fresh start:
for (int x = 0; x < WIDTH; x++) {
for (int y = 0; y < HEIGHT; y++) {
// Find the ADDRESS of each pixel in the pixbuf via the raw char buffer we built...
// and bind it to a pointer to a char...
unsigned char *pixel = &audioPixels[y * audioRowstride + x * 3];
// And directly update that memory location with a new color
// This AUTOMATICALLY updates the color of the pixbuf!
// It's just hitting the memory directly!
pixel[0] = getrand(0,255);//((int)(samples[x]*max)) & 0xff; // low bits...
pixel[1] = getrand(0,255);//((int)(samples[x]*max)) & 0xff00; // high bits.
pixel[2] = getrand(0,255); // some random value could be used for noise...
}
}
// Actually load our color onto the actor
clutter_image_set_data (CLUTTER_IMAGE (audioImage),
gdk_pixbuf_get_pixels (audiopixbuf),
COGL_PIXEL_FORMAT_RGB_888,
gdk_pixbuf_get_width (audiopixbuf),
gdk_pixbuf_get_height (audiopixbuf),
gdk_pixbuf_get_rowstride (audiopixbuf),
&error);
// g_object_unref (audiopixbuf); // we want to reuse this... don't dereference that memory yet...
clutter_actor_set_content (shaderOutput, audioImage);
//clutter_actor_set_content_gravity (shaderOutput, CLUTTER_CONTENT_GRAVITY_TOP_RIGHT);
// audioTexture[0] = 0.25;
// srand(time(NULL));
// for (i=0; i<noiseTextureSize; i++) {
// noiseTexture[i] = getrandf();
// }
// Make sure we don't have a current shader so we don't break the update loop:
shaderLoaded = false;
currentSpeed = 100;
// Once we have all that set up, we still need to START THE ACTUAL ANIMATION!!
// To do that, we'll need to use the event chain/callback system we have been using so far.
// Get ready to hand this display chunk in to the animation event:
AnimationData *data;
data = g_slice_new(AnimationData); // reserve memory for it...
data->tcl = tcl; // tcl is an pointer to the main TCLControl object.
data->animationNumber = ¤tAnimation;
data->animationObject = this;
// The clutter timeline object takes a "duration" in milliseconds...
timeline = clutter_timeline_new(1);
g_signal_connect(timeline, "new-frame", G_CALLBACK(handleNewFrame), data);
// which will just continue repeating:
clutter_timeline_set_repeat_count(timeline, -1);
// This actually starts the timeline animation!
clutter_timeline_start(timeline);
// Generate the list of known shaders:
buildShaderList();
// Load the first shader so we do not get a black screen:
currentShader = 0; // Set the inital shader to load (usually, first in the directory)
updateCurrentShader();
}