diff options
Diffstat (limited to 'libs/pixman-0.40.0/demos/gtk-utils.c')
| -rw-r--r-- | libs/pixman-0.40.0/demos/gtk-utils.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/libs/pixman-0.40.0/demos/gtk-utils.c b/libs/pixman-0.40.0/demos/gtk-utils.c deleted file mode 100644 index 32d4aec..0000000 --- a/libs/pixman-0.40.0/demos/gtk-utils.c +++ /dev/null @@ -1,179 +0,0 @@ -#include <gtk/gtk.h> -#include <config.h> -#include "../test/utils.h" -#include "gtk-utils.h" - -pixman_image_t * -pixman_image_from_file (const char *filename, pixman_format_code_t format) -{ - GdkPixbuf *pixbuf; - pixman_image_t *image; - int width, height; - uint32_t *data, *d; - uint8_t *gdk_data; - int n_channels; - int j, i; - int stride; - - if (!(pixbuf = gdk_pixbuf_new_from_file (filename, NULL))) - return NULL; - - image = NULL; - - width = gdk_pixbuf_get_width (pixbuf); - height = gdk_pixbuf_get_height (pixbuf); - n_channels = gdk_pixbuf_get_n_channels (pixbuf); - gdk_data = gdk_pixbuf_get_pixels (pixbuf); - stride = gdk_pixbuf_get_rowstride (pixbuf); - - if (!(data = malloc (width * height * sizeof (uint32_t)))) - goto out; - - d = data; - for (j = 0; j < height; ++j) - { - uint8_t *gdk_line = gdk_data; - - for (i = 0; i < width; ++i) - { - int r, g, b, a; - uint32_t pixel; - - r = gdk_line[0]; - g = gdk_line[1]; - b = gdk_line[2]; - - if (n_channels == 4) - a = gdk_line[3]; - else - a = 0xff; - - r = (r * a + 127) / 255; - g = (g * a + 127) / 255; - b = (b * a + 127) / 255; - - pixel = (a << 24) | (r << 16) | (g << 8) | b; - - *d++ = pixel; - gdk_line += n_channels; - } - - gdk_data += stride; - } - - image = pixman_image_create_bits ( - format, width, height, data, width * 4); - -out: - g_object_unref (pixbuf); - return image; -} - -GdkPixbuf * -pixbuf_from_argb32 (uint32_t *bits, - int width, - int height, - int stride) -{ - GdkPixbuf *pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, - 8, width, height); - int p_stride = gdk_pixbuf_get_rowstride (pixbuf); - guint32 *p_bits = (guint32 *)gdk_pixbuf_get_pixels (pixbuf); - int i; - - for (i = 0; i < height; ++i) - { - uint32_t *src_row = &bits[i * (stride / 4)]; - uint32_t *dst_row = p_bits + i * (p_stride / 4); - - a8r8g8b8_to_rgba_np (dst_row, src_row, width); - } - - return pixbuf; -} - -static gboolean -on_expose (GtkWidget *widget, GdkEventExpose *expose, gpointer data) -{ - pixman_image_t *pimage = data; - int width = pixman_image_get_width (pimage); - int height = pixman_image_get_height (pimage); - int stride = pixman_image_get_stride (pimage); - cairo_surface_t *cimage; - cairo_format_t format; - cairo_t *cr; - - if (pixman_image_get_format (pimage) == PIXMAN_x8r8g8b8) - format = CAIRO_FORMAT_RGB24; - else - format = CAIRO_FORMAT_ARGB32; - - cimage = cairo_image_surface_create_for_data ( - (uint8_t *)pixman_image_get_data (pimage), - format, width, height, stride); - - cr = gdk_cairo_create (widget->window); - - cairo_rectangle (cr, 0, 0, width, height); - cairo_set_source_surface (cr, cimage, 0, 0); - cairo_fill (cr); - - cairo_destroy (cr); - cairo_surface_destroy (cimage); - - return TRUE; -} - -void -show_image (pixman_image_t *image) -{ - GtkWidget *window; - int width, height; - int argc; - char **argv; - char *arg0 = g_strdup ("pixman-test-program"); - pixman_format_code_t format; - pixman_image_t *copy; - - argc = 1; - argv = (char **)&arg0; - - gtk_init (&argc, &argv); - - window = gtk_window_new (GTK_WINDOW_TOPLEVEL); - width = pixman_image_get_width (image); - height = pixman_image_get_height (image); - - gtk_window_set_default_size (GTK_WINDOW (window), width, height); - - format = pixman_image_get_format (image); - - /* We always display the image as if it contains sRGB data. That - * means that no conversion should take place when the image - * has the a8r8g8b8_sRGB format. - */ - switch (format) - { - case PIXMAN_a8r8g8b8_sRGB: - case PIXMAN_a8r8g8b8: - case PIXMAN_x8r8g8b8: - copy = pixman_image_ref (image); - break; - - default: - copy = pixman_image_create_bits (PIXMAN_a8r8g8b8, - width, height, NULL, -1); - pixman_image_composite32 (PIXMAN_OP_SRC, - image, NULL, copy, - 0, 0, 0, 0, 0, 0, - width, height); - break; - } - - g_signal_connect (window, "expose_event", G_CALLBACK (on_expose), copy); - g_signal_connect (window, "delete_event", G_CALLBACK (gtk_main_quit), NULL); - - gtk_widget_show (window); - - gtk_main (); -} |