switch to tinyobj and nanovg from assimp and cairo

1 files changed, 0 insertions, 456 deletions

diff --git a/libs/pixman-0.40.0/demos/scale.c b/libs/pixman-0.40.0/demos/scale.c
deleted file mode 100644
index 0995ad0..0000000
--- a/libs/pixman-0.40.0/demos/scale.c
+++ /dev/null
@@ -1,456 +0,0 @@
-/*
- * Copyright 2012, Red Hat, Inc.
- * Copyright 2012, Soren Sandmann
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Author: Soren Sandmann <soren.sandmann@gmail.com>
- */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include <math.h>
-#include <gtk/gtk.h>
-#include <pixman.h>
-#include <stdlib.h>
-#include "gtk-utils.h"
-
-typedef struct
-{
-    GtkBuilder *        builder;
-    pixman_image_t *	original;
-    GtkAdjustment *     scale_x_adjustment;
-    GtkAdjustment *     scale_y_adjustment;
-    GtkAdjustment *     rotate_adjustment;
-    GtkAdjustment *	subsample_adjustment;
-    int                 scaled_width;
-    int                 scaled_height;
-} app_t;
-
-static GtkWidget *
-get_widget (app_t *app, const char *name)
-{
-    GtkWidget *widget = GTK_WIDGET (gtk_builder_get_object (app->builder, name));
-
-    if (!widget)
-        g_error ("Widget %s not found\n", name);
-
-    return widget;
-}
-
-/* Figure out the boundary of a diameter=1 circle transformed into an ellipse
- * by trans. Proof that this is the correct calculation:
- *
- * Transform x,y to u,v by this matrix calculation:
- *
- *  |u|   |a c| |x|
- *  |v| = |b d|*|y|
- *
- * Horizontal component:
- *
- *  u = ax+cy (1)
- *
- * For each x,y on a radius-1 circle (p is angle to the point):
- *
- *  x^2+y^2 = 1
- *  x = cos(p)
- *  y = sin(p)
- *  dx/dp = -sin(p) = -y
- *  dy/dp = cos(p) = x
- *
- * Figure out derivative of (1) relative to p:
- *
- *  du/dp = a(dx/dp) + c(dy/dp)
- *        = -ay + cx
- *
- * The min and max u are when du/dp is zero:
- *
- *  -ay + cx = 0
- *  cx = ay
- *  c = ay/x  (2)
- *  y = cx/a  (3)
- *
- * Substitute (2) into (1) and simplify:
- *
- *  u = ax + ay^2/x
- *    = a(x^2+y^2)/x
- *    = a/x (because x^2+y^2 = 1)
- *  x = a/u (4)
- *
- * Substitute (4) into (3) and simplify:
- *
- *  y = c(a/u)/a
- *  y = c/u (5)
- *
- * Square (4) and (5) and add:
- *
- *  x^2+y^2 = (a^2+c^2)/u^2
- *
- * But x^2+y^2 is 1:
- *
- *  1 = (a^2+c^2)/u^2
- *  u^2 = a^2+c^2
- *  u = hypot(a,c)
- *
- * Similarily the max/min of v is at:
- *
- *  v = hypot(b,d)
- *
- */
-static void
-compute_extents (pixman_f_transform_t *trans, double *sx, double *sy)
-{
-    *sx = hypot (trans->m[0][0], trans->m[0][1]) / trans->m[2][2];
-    *sy = hypot (trans->m[1][0], trans->m[1][1]) / trans->m[2][2];
-}
-
-typedef struct
-{
-    char	name [20];
-    int		value;
-} named_int_t;
-
-static const named_int_t filters[] =
-{
-    { "Box",			PIXMAN_KERNEL_BOX },
-    { "Impulse",		PIXMAN_KERNEL_IMPULSE },
-    { "Linear",			PIXMAN_KERNEL_LINEAR },
-    { "Cubic",			PIXMAN_KERNEL_CUBIC },
-    { "Lanczos2",		PIXMAN_KERNEL_LANCZOS2 },
-    { "Lanczos3",		PIXMAN_KERNEL_LANCZOS3 },
-    { "Lanczos3 Stretched",	PIXMAN_KERNEL_LANCZOS3_STRETCHED },
-    { "Gaussian",		PIXMAN_KERNEL_GAUSSIAN },
-};
-
-static const named_int_t repeats[] =
-{
-    { "None",                   PIXMAN_REPEAT_NONE },
-    { "Normal",                 PIXMAN_REPEAT_NORMAL },
-    { "Reflect",                PIXMAN_REPEAT_REFLECT },
-    { "Pad",                    PIXMAN_REPEAT_PAD },
-};
-
-static int
-get_value (app_t *app, const named_int_t table[], const char *box_name)
-{
-    GtkComboBox *box = GTK_COMBO_BOX (get_widget (app, box_name));
-
-    return table[gtk_combo_box_get_active (box)].value;
-}
-
-static void
-copy_to_counterpart (app_t *app, GObject *object)
-{
-    static const char *xy_map[] =
-    {
-	"reconstruct_x_combo_box", "reconstruct_y_combo_box",
-	"sample_x_combo_box",      "sample_y_combo_box",
-	"scale_x_adjustment",      "scale_y_adjustment",
-    };
-    GObject *counterpart = NULL;
-    int i;
-
-    for (i = 0; i < G_N_ELEMENTS (xy_map); i += 2)
-    {
-	GObject *x = gtk_builder_get_object (app->builder, xy_map[i]);
-	GObject *y = gtk_builder_get_object (app->builder, xy_map[i + 1]);
-
-	if (object == x)
-	    counterpart = y;
-	if (object == y)
-	    counterpart = x;
-    }
-
-    if (!counterpart)
-	return;
-    
-    if (GTK_IS_COMBO_BOX (counterpart))
-    {
-	gtk_combo_box_set_active (
-	    GTK_COMBO_BOX (counterpart),
-	    gtk_combo_box_get_active (
-		GTK_COMBO_BOX (object)));
-    }
-    else if (GTK_IS_ADJUSTMENT (counterpart))
-    {
-	gtk_adjustment_set_value (
-	    GTK_ADJUSTMENT (counterpart),
-	    gtk_adjustment_get_value (
-		GTK_ADJUSTMENT (object)));
-    }
-}
-
-static double
-to_scale (double v)
-{
-    return pow (1.15, v);
-}
-
-static void
-rescale (GtkWidget *may_be_null, app_t *app)
-{
-    pixman_f_transform_t ftransform;
-    pixman_transform_t transform;
-    double new_width, new_height;
-    double fscale_x, fscale_y;
-    double rotation;
-    pixman_fixed_t *params;
-    int n_params;
-    double sx, sy;
-
-    pixman_f_transform_init_identity (&ftransform);
-
-    if (may_be_null && gtk_toggle_button_get_active (
-	    GTK_TOGGLE_BUTTON (get_widget (app, "lock_checkbutton"))))
-    {
-	copy_to_counterpart (app, G_OBJECT (may_be_null));
-    }
-    
-    fscale_x = gtk_adjustment_get_value (app->scale_x_adjustment);
-    fscale_y = gtk_adjustment_get_value (app->scale_y_adjustment);
-    rotation = gtk_adjustment_get_value (app->rotate_adjustment);
-
-    fscale_x = to_scale (fscale_x);
-    fscale_y = to_scale (fscale_y);
-    
-    new_width = pixman_image_get_width (app->original) * fscale_x;
-    new_height = pixman_image_get_height (app->original) * fscale_y;
-
-    pixman_f_transform_scale (&ftransform, NULL, fscale_x, fscale_y);
-
-    pixman_f_transform_translate (&ftransform, NULL, - new_width / 2.0, - new_height / 2.0);
-
-    rotation = (rotation / 360.0) * 2 * M_PI;
-    pixman_f_transform_rotate (&ftransform, NULL, cos (rotation), sin (rotation));
-
-    pixman_f_transform_translate (&ftransform, NULL, new_width / 2.0, new_height / 2.0);
-
-    pixman_f_transform_invert (&ftransform, &ftransform);
-
-    compute_extents (&ftransform, &sx, &sy);
-    
-    pixman_transform_from_pixman_f_transform (&transform, &ftransform);
-    pixman_image_set_transform (app->original, &transform);
-
-    params = pixman_filter_create_separable_convolution (
-        &n_params,
-        sx * 65536.0 + 0.5,
-	sy * 65536.0 + 0.5,
-	get_value (app, filters, "reconstruct_x_combo_box"),
-	get_value (app, filters, "reconstruct_y_combo_box"),
-	get_value (app, filters, "sample_x_combo_box"),
-	get_value (app, filters, "sample_y_combo_box"),
-	gtk_adjustment_get_value (app->subsample_adjustment),
-	gtk_adjustment_get_value (app->subsample_adjustment));
-
-    pixman_image_set_filter (app->original, PIXMAN_FILTER_SEPARABLE_CONVOLUTION, params, n_params);
-
-    pixman_image_set_repeat (
-        app->original, get_value (app, repeats, "repeat_combo_box"));
-    
-    free (params);
-
-    app->scaled_width = ceil (new_width);
-    app->scaled_height = ceil (new_height);
-    
-    gtk_widget_set_size_request (
-        get_widget (app, "drawing_area"), new_width + 0.5, new_height + 0.5);
-
-    gtk_widget_queue_draw (
-        get_widget (app, "drawing_area"));
-}
-
-static gboolean
-on_expose (GtkWidget *da, GdkEvent *event, gpointer data)
-{
-    app_t *app = data;
-    GdkRectangle *area = &event->expose.area;
-    cairo_surface_t *surface;
-    pixman_image_t *tmp;
-    cairo_t *cr;
-    uint32_t *pixels;
-
-    pixels = calloc (1, area->width * area->height * 4);
-    tmp = pixman_image_create_bits (
-        PIXMAN_a8r8g8b8, area->width, area->height, pixels, area->width * 4);
-
-    if (area->x < app->scaled_width && area->y < app->scaled_height)
-    {
-        pixman_image_composite (
-            PIXMAN_OP_SRC,
-            app->original, NULL, tmp,
-            area->x, area->y, 0, 0, 0, 0,
-            app->scaled_width - area->x, app->scaled_height - area->y);
-    }
-
-    surface = cairo_image_surface_create_for_data (
-        (uint8_t *)pixels, CAIRO_FORMAT_ARGB32,
-        area->width, area->height, area->width * 4);
-
-    cr = gdk_cairo_create (da->window);
-
-    cairo_set_source_surface (cr, surface, area->x, area->y);
-
-    cairo_paint (cr);
-
-    cairo_destroy (cr);
-    cairo_surface_destroy (surface);
-    free (pixels);
-    pixman_image_unref (tmp);
-
-    return TRUE;
-}
-
-static void
-set_up_combo_box (app_t *app, const char *box_name,
-                  int n_entries, const named_int_t table[])
-{
-    GtkWidget *widget = get_widget (app, box_name);
-    GtkListStore *model;
-    GtkCellRenderer *cell;
-    int i;
-
-    model = gtk_list_store_new (1, G_TYPE_STRING);
-    
-    cell = gtk_cell_renderer_text_new ();
-    gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (widget), cell, TRUE);
-    gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (widget), cell,
-				    "text", 0,
-				    NULL);
-
-    gtk_combo_box_set_model (GTK_COMBO_BOX (widget), GTK_TREE_MODEL (model));
-    
-    for (i = 0; i < n_entries; ++i)
-    {
-	const named_int_t *info = &(table[i]);
-	GtkTreeIter iter;
-
-	gtk_list_store_append (model, &iter);
-	gtk_list_store_set (model, &iter, 0, info->name, -1);
-    }
-
-    gtk_combo_box_set_active (GTK_COMBO_BOX (widget), 0);
-
-    g_signal_connect (widget, "changed", G_CALLBACK (rescale), app);
-}
-
-static void
-set_up_filter_box (app_t *app, const char *box_name)
-{
-    set_up_combo_box (app, box_name, G_N_ELEMENTS (filters), filters);
-}
-
-static char *
-format_value (GtkWidget *widget, double value)
-{
-    return g_strdup_printf ("%.4f", to_scale (value));
-}
-
-static app_t *
-app_new (pixman_image_t *original)
-{
-    GtkWidget *widget;
-    app_t *app = g_malloc (sizeof *app);
-    GError *err = NULL;
-
-    app->builder = gtk_builder_new ();
-    app->original = original;
-
-    if (!gtk_builder_add_from_file (app->builder, "scale.ui", &err))
-	g_error ("Could not read file scale.ui: %s", err->message);
-
-    app->scale_x_adjustment =
-        GTK_ADJUSTMENT (gtk_builder_get_object (app->builder, "scale_x_adjustment"));
-    app->scale_y_adjustment =
-        GTK_ADJUSTMENT (gtk_builder_get_object (app->builder, "scale_y_adjustment"));
-    app->rotate_adjustment =
-        GTK_ADJUSTMENT (gtk_builder_get_object (app->builder, "rotate_adjustment"));
-    app->subsample_adjustment =
-	GTK_ADJUSTMENT (gtk_builder_get_object (app->builder, "subsample_adjustment"));
-
-    g_signal_connect (app->scale_x_adjustment, "value_changed", G_CALLBACK (rescale), app);
-    g_signal_connect (app->scale_y_adjustment, "value_changed", G_CALLBACK (rescale), app);
-    g_signal_connect (app->rotate_adjustment, "value_changed", G_CALLBACK (rescale), app);
-    g_signal_connect (app->subsample_adjustment, "value_changed", G_CALLBACK (rescale), app);
-    
-    widget = get_widget (app, "scale_x_scale");
-    gtk_scale_add_mark (GTK_SCALE (widget), 0.0, GTK_POS_LEFT, NULL);
-    g_signal_connect (widget, "format_value", G_CALLBACK (format_value), app);
-    widget = get_widget (app, "scale_y_scale");
-    gtk_scale_add_mark (GTK_SCALE (widget), 0.0, GTK_POS_LEFT, NULL);
-    g_signal_connect (widget, "format_value", G_CALLBACK (format_value), app);
-    widget = get_widget (app, "rotate_scale");
-    gtk_scale_add_mark (GTK_SCALE (widget), 0.0, GTK_POS_LEFT, NULL);
-
-    widget = get_widget (app, "drawing_area");
-    g_signal_connect (widget, "expose_event", G_CALLBACK (on_expose), app);
-
-    set_up_filter_box (app, "reconstruct_x_combo_box");
-    set_up_filter_box (app, "reconstruct_y_combo_box");
-    set_up_filter_box (app, "sample_x_combo_box");
-    set_up_filter_box (app, "sample_y_combo_box");
-
-    set_up_combo_box (
-        app, "repeat_combo_box", G_N_ELEMENTS (repeats), repeats);
-
-    g_signal_connect (
-	gtk_builder_get_object (app->builder, "lock_checkbutton"),
-	"toggled", G_CALLBACK (rescale), app);
-    
-    rescale (NULL, app);
-    
-    return app;
-}
-
-int
-main (int argc, char **argv)
-{
-    GtkWidget *window;
-    pixman_image_t *image;
-    app_t *app;
-    
-    gtk_init (&argc, &argv);
-
-    if (argc < 2)
-    {
-	printf ("%s <image file>\n", argv[0]);
-	return -1;
-    }
-
-    if (!(image = pixman_image_from_file (argv[1], PIXMAN_a8r8g8b8)))
-    {
-	printf ("Could not load image \"%s\"\n", argv[1]);
-	return -1;
-    }
-
-    app = app_new (image);
-    
-    window = get_widget (app, "main");
-
-    g_signal_connect (window, "delete_event", G_CALLBACK (gtk_main_quit), NULL);
-    
-    gtk_window_set_default_size (GTK_WINDOW (window), 1024, 768);
-    
-    gtk_widget_show_all (window);
-    
-    gtk_main ();
-
-    return 0;
-}