GtkWidget *config;
time_t time;
const gchar *message;
- gchar *nearest;
+ gchar *path;
GisTile *tile[2];
gpointer *tile_ref[2];
- guchar *pixels[2];
guint time_id; // "time-changed" callback ID
guint refresh_id; // "refresh" callback ID
g_free(msg);
}
+/* Copy images to graphics memory */
+static void _conus_update_end_copy(GisTile *tile, guchar *pixels)
+{
+ if (!tile->data) {
+ tile->data = g_new0(guint, 1);
+ glGenTextures(1, tile->data);
+ }
+
+ guint *tex = tile->data;
+ glBindTexture(GL_TEXTURE_2D, *tex);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+ glTexImage2D(GL_TEXTURE_2D, 0, 4, 2048, 2048, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexSubImage2D(GL_TEXTURE_2D, 0, 1,1, CONUS_WIDTH/2,CONUS_HEIGHT,
+ GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+ tile->coords.n = 1.0/(CONUS_WIDTH/2);
+ tile->coords.w = 1.0/ CONUS_HEIGHT;
+ tile->coords.s = tile->coords.n + CONUS_HEIGHT / 2048.0;
+ tile->coords.e = tile->coords.w + (CONUS_WIDTH/2) / 2048.0;
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ glFlush();
+}
+
+/* Split the pixbuf into east and west halves (with 2K sides)
+ * Also map the pixbuf's alpha values */
+static void _conus_update_end_split(guchar *pixels, guchar *west, guchar *east,
+ gint width, gint height, gint pxsize)
+{
+ g_debug("GisPluginRadar: _conus_update_thread - split");
+ guchar *out[] = {west,east};
+ const guchar alphamap[][4] = {
+ {0x04, 0xe9, 0xe7, 0x30},
+ {0x01, 0x9f, 0xf4, 0x60},
+ {0x03, 0x00, 0xf4, 0x90},
+ };
+ for (int y = 0; y < height; y++)
+ for (int x = 0; x < width; x++) {
+ gint subx = x % (width/2);
+ gint idx = x / (width/2);
+ guchar *src = &pixels[(y*width+x)*pxsize];
+ guchar *dst = &out[idx][(y*(width/2)+subx)*4];
+ if (src[0] > 0xe0 &&
+ src[1] > 0xe0 &&
+ src[2] > 0xe0) {
+ dst[3] = 0x00;
+ } else {
+ dst[0] = src[0];
+ dst[1] = src[1];
+ dst[2] = src[2];
+ dst[3] = 0xff;
+ for (int j = 0; j < G_N_ELEMENTS(alphamap); j++)
+ if (src[0] == alphamap[j][0] &&
+ src[1] == alphamap[j][1] &&
+ src[2] == alphamap[j][2])
+ dst[3] = alphamap[j][3];
+ }
+ }
+}
+
gboolean _conus_update_end(gpointer _conus)
{
RadarConus *conus = _conus;
g_debug("GisPluginRadar: _conus_update_end");
- for (int i = 0; i < 2; i++) {
- GisTile *tile = conus->tile[i];
- guchar *pixels = conus->pixels[i];
+ /* Check error status */
+ if (conus->message) {
+ g_warning("GisPluginRadar: _conus_update_end - %s", conus->message);
+ _gtk_bin_set_child(GTK_BIN(conus->config), gtk_label_new(conus->message));
+ return FALSE;
+ }
- if (!tile->data) {
- tile->data = g_new0(guint, 1);
- glGenTextures(1, tile->data);
- }
+ /* Load and pixbuf */
+ GError *error = NULL;
+ GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(conus->path, &error);
+ guchar *pixels = gdk_pixbuf_get_pixels(pixbuf);
+ gint width = gdk_pixbuf_get_width(pixbuf);
+ gint height = gdk_pixbuf_get_height(pixbuf);
+ gint pxsize = gdk_pixbuf_get_has_alpha(pixbuf) ? 4 : 3;
- guint *tex = tile->data;
- glBindTexture(GL_TEXTURE_2D, *tex);
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- glPixelStorei(GL_PACK_ALIGNMENT, 1);
- glTexImage2D(GL_TEXTURE_2D, 0, 4, 2048, 2048, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- glTexSubImage2D(GL_TEXTURE_2D, 0, 1,1, CONUS_WIDTH/2,CONUS_HEIGHT,
- GL_RGBA, GL_UNSIGNED_BYTE, pixels);
- tile->coords.n = 1.0/(CONUS_WIDTH/2);
- tile->coords.w = 1.0/ CONUS_HEIGHT;
- tile->coords.s = tile->coords.n + CONUS_HEIGHT / 2048.0;
- tile->coords.e = tile->coords.w + (CONUS_WIDTH/2) / 2048.0;
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
- glFlush();
-
- g_free(pixels);
- }
+ /* Split pixels into east/west parts */
+ guchar *pixels_west = g_malloc(4*(width/2)*height);
+ guchar *pixels_east = g_malloc(4*(width/2)*height);
+ _conus_update_end_split(pixels, pixels_west, pixels_east,
+ width, height, pxsize);
+ g_object_unref(pixbuf);
- /* finish */
- _gtk_bin_set_child(GTK_BIN(conus->config),
- gtk_label_new(conus->nearest));
+ /* Copy pixels to graphics memory */
+ _conus_update_end_copy(conus->tile[0], pixels_west);
+ _conus_update_end_copy(conus->tile[1], pixels_east);
+ g_free(pixels_west);
+ g_free(pixels_east);
+
+ /* Update GUI */
+ gchar *label = g_path_get_basename(conus->path);
+ _gtk_bin_set_child(GTK_BIN(conus->config), gtk_label_new(label));
gtk_widget_queue_draw(GTK_WIDGET(conus->viewer));
- g_free(conus->nearest);
+ g_free(conus->path);
+ g_free(label);
return FALSE;
}
gpointer _conus_update_thread(gpointer _conus)
{
RadarConus *conus = _conus;
+ conus->message = NULL;
/* Find nearest */
g_debug("GisPluginRadar: _conus_update_thread - nearest");
GList *files = gis_http_available(conus->http,
"^Conus_[^\"]*_N0Ronly.gif$", "",
NULL, (offline ? NULL : conus_url));
- conus->nearest = _find_nearest(conus->time, files, 6, "%Y%m%d_%H%M");
+ gchar *nearest = _find_nearest(conus->time, files, 6, "%Y%m%d_%H%M");
g_list_foreach(files, (GFunc)g_free, NULL);
g_list_free(files);
- if (!conus->nearest) {
+ if (!nearest) {
conus->message = "No suitable files";
goto out;
}
/* Fetch the image */
g_debug("GisPluginRadar: _conus_update_thread - fetch");
- gchar *uri = g_strconcat(conus_url, conus->nearest, NULL);
- gchar *path = gis_http_fetch(conus->http, uri, conus->nearest, GIS_ONCE,
+ gchar *uri = g_strconcat(conus_url, nearest, NULL);
+ conus->path = gis_http_fetch(conus->http, uri, nearest, GIS_ONCE,
_conus_update_loading, conus);
+ g_free(nearest);
g_free(uri);
- if (!path) {
+ if (!conus->path) {
conus->message = "Fetch failed";
goto out;
}
- /* Load and split the pixbuf into two 2K data segments */
- g_debug("GisPluginRadar: _conus_update_thread - load");
- GError *error = NULL;
- GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(path, &error);
- guchar *pixels = gdk_pixbuf_get_pixels(pixbuf);
- gint width = gdk_pixbuf_get_width(pixbuf);
- gint height = gdk_pixbuf_get_height(pixbuf);
- gint pxsize = gdk_pixbuf_get_has_alpha(pixbuf) ? 4 : 3;
- g_free(path);
-
- /* Split the pixbuf into east and west halves (with 2K sides)
- * Also map the pixbuf's alpha values */
- g_debug("GisPluginRadar: _conus_update_thread - split");
- conus->pixels[0] = g_malloc(4*(width/2)*height);
- conus->pixels[1] = g_malloc(4*(width/2)*height);
- const guchar alphamap[][4] = {
- {0x04, 0xe9, 0xe7, 0x30},
- {0x01, 0x9f, 0xf4, 0x60},
- {0x03, 0x00, 0xf4, 0x90},
- };
- for (int y = 0; y < height; y++)
- for (int x = 0; x < width; x++) {
- gint subx = x % (width/2);
- gint idx = x / (width/2);
- guchar *src = &pixels[(y*width+x)*pxsize];
- guchar *dst = &conus->pixels[idx][(y*(width/2)+subx)*4];
- if (src[0] > 0xe0 &&
- src[1] > 0xe0 &&
- src[2] > 0xe0) {
- dst[3] = 0x00;
- } else {
- dst[0] = src[0];
- dst[1] = src[1];
- dst[2] = src[2];
- dst[3] = 0xff;
- for (int j = 0; j < G_N_ELEMENTS(alphamap); j++)
- if (src[0] == alphamap[j][0] &&
- src[1] == alphamap[j][1] &&
- src[2] == alphamap[j][2])
- dst[3] = alphamap[j][3];
- }
- }
- g_object_unref(pixbuf);
-
out:
g_debug("GisPluginRadar: _conus_update_thread - done");
g_idle_add(_conus_update_end, conus);
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