forked from AuroraMiddleware/gtk
d56ad7c40c
Create textures with various characteristics (alpha, premultiplication, stride) that trigger different code paths in the gl texture upload function, and show the resulting images. If all goes well, they all should look the same. On my system, this tests texture upload for memory formats GDK_MEMORY_B8G8R8A8_PREMULTIPLIED, GDK_MEMORY_R8G8B8A8, and GDK_MEMORY_R8G8B8, and it works with both gl and gles.
278 lines
10 KiB
C
278 lines
10 KiB
C
#include <gtk/gtk.h>
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static void
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add_to_grid (GtkWidget *grid,
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int left,
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int top,
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int n_channels,
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gboolean premul,
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int width,
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int height,
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int stride,
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GtkWidget *picture)
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{
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char *text;
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Channels"), left, top, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Width"), left, top + 1, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Height"), left, top + 2, 1, 1);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Stride"), left, top + 3, 1, 1);
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text = g_strdup_printf ("%d%s", n_channels, premul ? " (premul)" : "");
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new (text), left + 1, top, 1, 1);
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g_free (text);
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text = g_strdup_printf ("%d", width);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new (text), left + 1, top + 1, 1, 1);
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g_free (text);
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text = g_strdup_printf ("%d", height);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new (text), left + 1, top + 2, 1, 1);
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g_free (text);
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text = g_strdup_printf ("%d", stride);
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gtk_grid_attach (GTK_GRID (grid), gtk_label_new (text), left + 1, top + 3, 1, 1);
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g_free (text);
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gtk_grid_attach (GTK_GRID (grid), picture, left + 2, top + 0, 1, 4);
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}
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int
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main (int argc, char *argv[])
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{
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GtkWidget *window, *grid;
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GdkPixbuf *source, *pb, *pb2;
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GError *error = NULL;
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cairo_t *cr;
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cairo_surface_t *surface;
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GBytes *bytes;
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GdkTexture *texture;
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gtk_init ();
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window = gtk_window_new ();
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grid = gtk_grid_new ();
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gtk_widget_set_margin_top (grid, 10);
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gtk_widget_set_margin_bottom (grid, 10);
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gtk_widget_set_margin_start (grid, 10);
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gtk_widget_set_margin_end (grid, 10);
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gtk_grid_set_row_spacing (GTK_GRID (grid), 10);
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gtk_grid_set_column_spacing (GTK_GRID (grid), 10);
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gtk_window_set_child (GTK_WINDOW (window), grid);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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200, 200, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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add_to_grid (grid, 0, 0,
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gdk_pixbuf_get_n_channels (source),
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FALSE,
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gdk_pixbuf_get_width (source),
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gdk_pixbuf_get_height (source),
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gdk_pixbuf_get_rowstride (source),
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gtk_picture_new_for_pixbuf (source));
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g_object_unref (source);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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199, 199, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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add_to_grid (grid, 4, 0,
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gdk_pixbuf_get_n_channels (source),
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FALSE,
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gdk_pixbuf_get_width (source),
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gdk_pixbuf_get_height (source),
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gdk_pixbuf_get_rowstride (source),
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gtk_picture_new_for_pixbuf (source));
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g_object_unref (source);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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201, 201, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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pb = gdk_pixbuf_new_subpixbuf (source, 0, 0, 200, 200);
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add_to_grid (grid, 8, 0,
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gdk_pixbuf_get_n_channels (pb),
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FALSE,
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gdk_pixbuf_get_width (pb),
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gdk_pixbuf_get_height (pb),
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gdk_pixbuf_get_rowstride (pb),
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gtk_picture_new_for_pixbuf (pb));
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g_object_unref (source);
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g_object_unref (pb);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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200, 200, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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pb = gdk_pixbuf_add_alpha (source, FALSE, 0, 0, 0);
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add_to_grid (grid, 0, 5,
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gdk_pixbuf_get_n_channels (pb),
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FALSE,
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gdk_pixbuf_get_width (pb),
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gdk_pixbuf_get_height (pb),
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gdk_pixbuf_get_rowstride (pb),
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gtk_picture_new_for_pixbuf (pb));
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g_object_unref (source);
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g_object_unref (pb);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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199, 199, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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pb = gdk_pixbuf_add_alpha (source, FALSE, 0, 0, 0);
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add_to_grid (grid, 4, 5,
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gdk_pixbuf_get_n_channels (pb),
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FALSE,
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gdk_pixbuf_get_width (pb),
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gdk_pixbuf_get_height (pb),
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gdk_pixbuf_get_rowstride (pb),
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gtk_picture_new_for_pixbuf (pb));
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g_object_unref (source);
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g_object_unref (pb);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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201, 201, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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pb = gdk_pixbuf_add_alpha (source, FALSE, 0, 0, 0);
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pb2 = gdk_pixbuf_new_subpixbuf (pb, 0, 0, 200, 200);
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add_to_grid (grid, 8, 5,
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gdk_pixbuf_get_n_channels (pb2),
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FALSE,
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gdk_pixbuf_get_width (pb2),
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gdk_pixbuf_get_height (pb2),
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gdk_pixbuf_get_rowstride (pb2),
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gtk_picture_new_for_pixbuf (pb2));
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g_object_unref (source);
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g_object_unref (pb);
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g_object_unref (pb2);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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200, 200, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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pb = gdk_pixbuf_add_alpha (source, FALSE, 0, 0, 0);
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, gdk_pixbuf_get_width (pb), gdk_pixbuf_get_height (pb));
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cr = cairo_create (surface);
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gdk_cairo_set_source_pixbuf (cr, pb, 0, 0);
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cairo_paint (cr);
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cairo_destroy (cr);
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bytes = g_bytes_new (cairo_image_surface_get_data (surface),
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cairo_image_surface_get_stride (surface) *
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cairo_image_surface_get_height (surface));
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texture = gdk_memory_texture_new (cairo_image_surface_get_width (surface),
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cairo_image_surface_get_height (surface),
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GDK_MEMORY_DEFAULT,
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bytes,
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cairo_image_surface_get_stride (surface));
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g_bytes_unref (bytes);
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add_to_grid (grid, 0, 10,
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4, TRUE,
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cairo_image_surface_get_width (surface),
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cairo_image_surface_get_height (surface),
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cairo_image_surface_get_stride (surface),
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gtk_picture_new_for_paintable (GDK_PAINTABLE (texture)));
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g_object_unref (source);
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g_object_unref (pb);
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cairo_surface_destroy (surface);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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199, 199, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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pb = gdk_pixbuf_add_alpha (source, FALSE, 0, 0, 0);
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, gdk_pixbuf_get_width (pb), gdk_pixbuf_get_height (pb));
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cr = cairo_create (surface);
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gdk_cairo_set_source_pixbuf (cr, pb, 0, 0);
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cairo_paint (cr);
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cairo_destroy (cr);
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bytes = g_bytes_new (cairo_image_surface_get_data (surface),
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cairo_image_surface_get_stride (surface) *
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cairo_image_surface_get_height (surface));
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texture = gdk_memory_texture_new (cairo_image_surface_get_width (surface),
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cairo_image_surface_get_height (surface),
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GDK_MEMORY_DEFAULT,
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bytes,
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cairo_image_surface_get_stride (surface));
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g_bytes_unref (bytes);
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add_to_grid (grid, 4, 10,
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4, TRUE,
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cairo_image_surface_get_width (surface),
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cairo_image_surface_get_height (surface),
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cairo_image_surface_get_stride (surface),
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gtk_picture_new_for_paintable (GDK_PAINTABLE (texture)));
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g_object_unref (source);
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g_object_unref (pb);
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cairo_surface_destroy (surface);
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source = gdk_pixbuf_new_from_file_at_scale ("tests/portland-rose.jpg",
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201, 201, TRUE,
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&error);
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if (!source)
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g_error ("%s", error->message);
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pb = gdk_pixbuf_add_alpha (source, FALSE, 0, 0, 0);
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, gdk_pixbuf_get_width (pb), gdk_pixbuf_get_height (pb));
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cr = cairo_create (surface);
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gdk_cairo_set_source_pixbuf (cr, pb, 0, 0);
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cairo_paint (cr);
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cairo_destroy (cr);
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bytes = g_bytes_new (cairo_image_surface_get_data (surface),
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cairo_image_surface_get_stride (surface) *
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cairo_image_surface_get_height (surface));
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texture = gdk_memory_texture_new (cairo_image_surface_get_width (surface) - 1,
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cairo_image_surface_get_height (surface) - 1,
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GDK_MEMORY_DEFAULT,
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bytes,
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cairo_image_surface_get_stride (surface));
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g_bytes_unref (bytes);
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add_to_grid (grid, 8, 10,
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4, TRUE,
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gdk_texture_get_width (texture),
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gdk_texture_get_height (texture),
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cairo_image_surface_get_stride (surface),
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gtk_picture_new_for_paintable (GDK_PAINTABLE (texture)));
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g_object_unref (source);
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g_object_unref (pb);
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cairo_surface_destroy (surface);
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gtk_window_present (GTK_WINDOW (window));
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while (g_list_model_get_n_items (gtk_window_get_toplevels ()) > 0)
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g_main_context_iteration (NULL, TRUE);
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return 0;
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}
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