switch to tinyobj and nanovg from assimp and cairo

1 files changed, 0 insertions, 994 deletions

diff --git a/libs/pixman-0.40.0/pixman/pixman-image.c b/libs/pixman-0.40.0/pixman/pixman-image.c
deleted file mode 100644
index db29ff5..0000000
--- a/libs/pixman-0.40.0/pixman/pixman-image.c
+++ /dev/null
@@ -1,994 +0,0 @@
-/*
- * Copyright © 2000 SuSE, Inc.
- * Copyright © 2007 Red Hat, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of SuSE not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission.  SuSE makes no representations about the
- * suitability of this software for any purpose.  It is provided "as is"
- * without express or implied warranty.
- *
- * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
- * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-
-#include "pixman-private.h"
-
-static const pixman_color_t transparent_black = { 0, 0, 0, 0 };
-
-static void
-gradient_property_changed (pixman_image_t *image)
-{
-    gradient_t *gradient = &image->gradient;
-    int n = gradient->n_stops;
-    pixman_gradient_stop_t *stops = gradient->stops;
-    pixman_gradient_stop_t *begin = &(gradient->stops[-1]);
-    pixman_gradient_stop_t *end = &(gradient->stops[n]);
-
-    switch (gradient->common.repeat)
-    {
-    default:
-    case PIXMAN_REPEAT_NONE:
-	begin->x = INT32_MIN;
-	begin->color = transparent_black;
-	end->x = INT32_MAX;
-	end->color = transparent_black;
-	break;
-
-    case PIXMAN_REPEAT_NORMAL:
-	begin->x = stops[n - 1].x - pixman_fixed_1;
-	begin->color = stops[n - 1].color;
-	end->x = stops[0].x + pixman_fixed_1;
-	end->color = stops[0].color;
-	break;
-
-    case PIXMAN_REPEAT_REFLECT:
-	begin->x = - stops[0].x;
-	begin->color = stops[0].color;
-	end->x = pixman_int_to_fixed (2) - stops[n - 1].x;
-	end->color = stops[n - 1].color;
-	break;
-
-    case PIXMAN_REPEAT_PAD:
-	begin->x = INT32_MIN;
-	begin->color = stops[0].color;
-	end->x = INT32_MAX;
-	end->color = stops[n - 1].color;
-	break;
-    }
-}
-
-pixman_bool_t
-_pixman_init_gradient (gradient_t *                  gradient,
-                       const pixman_gradient_stop_t *stops,
-                       int                           n_stops)
-{
-    return_val_if_fail (n_stops > 0, FALSE);
-
-    /* We allocate two extra stops, one before the beginning of the stop list,
-     * and one after the end. These stops are initialized to whatever color
-     * would be used for positions outside the range of the stop list.
-     *
-     * This saves a bit of computation in the gradient walker.
-     *
-     * The pointer we store in the gradient_t struct still points to the
-     * first user-supplied struct, so when freeing, we will have to
-     * subtract one.
-     */
-    gradient->stops =
-	pixman_malloc_ab (n_stops + 2, sizeof (pixman_gradient_stop_t));
-    if (!gradient->stops)
-	return FALSE;
-
-    gradient->stops += 1;
-    memcpy (gradient->stops, stops, n_stops * sizeof (pixman_gradient_stop_t));
-    gradient->n_stops = n_stops;
-
-    gradient->common.property_changed = gradient_property_changed;
-
-    return TRUE;
-}
-
-void
-_pixman_image_init (pixman_image_t *image)
-{
-    image_common_t *common = &image->common;
-
-    pixman_region32_init (&common->clip_region);
-
-    common->alpha_count = 0;
-    common->have_clip_region = FALSE;
-    common->clip_sources = FALSE;
-    common->transform = NULL;
-    common->repeat = PIXMAN_REPEAT_NONE;
-    common->filter = PIXMAN_FILTER_NEAREST;
-    common->filter_params = NULL;
-    common->n_filter_params = 0;
-    common->alpha_map = NULL;
-    common->component_alpha = FALSE;
-    common->ref_count = 1;
-    common->property_changed = NULL;
-    common->client_clip = FALSE;
-    common->destroy_func = NULL;
-    common->destroy_data = NULL;
-    common->dirty = TRUE;
-}
-
-pixman_bool_t
-_pixman_image_fini (pixman_image_t *image)
-{
-    image_common_t *common = (image_common_t *)image;
-
-    common->ref_count--;
-
-    if (common->ref_count == 0)
-    {
-	if (image->common.destroy_func)
-	    image->common.destroy_func (image, image->common.destroy_data);
-
-	pixman_region32_fini (&common->clip_region);
-
-	free (common->transform);
-	free (common->filter_params);
-
-	if (common->alpha_map)
-	    pixman_image_unref ((pixman_image_t *)common->alpha_map);
-
-	if (image->type == LINEAR ||
-	    image->type == RADIAL ||
-	    image->type == CONICAL)
-	{
-	    if (image->gradient.stops)
-	    {
-		/* See _pixman_init_gradient() for an explanation of the - 1 */
-		free (image->gradient.stops - 1);
-	    }
-
-	    /* This will trigger if someone adds a property_changed
-	     * method to the linear/radial/conical gradient overwriting
-	     * the general one.
-	     */
-	    assert (
-		image->common.property_changed == gradient_property_changed);
-	}
-
-	if (image->type == BITS && image->bits.free_me)
-	    free (image->bits.free_me);
-
-	return TRUE;
-    }
-
-    return FALSE;
-}
-
-pixman_image_t *
-_pixman_image_allocate (void)
-{
-    pixman_image_t *image = malloc (sizeof (pixman_image_t));
-
-    if (image)
-	_pixman_image_init (image);
-
-    return image;
-}
-
-static void
-image_property_changed (pixman_image_t *image)
-{
-    image->common.dirty = TRUE;
-}
-
-/* Ref Counting */
-PIXMAN_EXPORT pixman_image_t *
-pixman_image_ref (pixman_image_t *image)
-{
-    image->common.ref_count++;
-
-    return image;
-}
-
-/* returns TRUE when the image is freed */
-PIXMAN_EXPORT pixman_bool_t
-pixman_image_unref (pixman_image_t *image)
-{
-    if (_pixman_image_fini (image))
-    {
-	free (image);
-	return TRUE;
-    }
-
-    return FALSE;
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_destroy_function (pixman_image_t *            image,
-                                   pixman_image_destroy_func_t func,
-                                   void *                      data)
-{
-    image->common.destroy_func = func;
-    image->common.destroy_data = data;
-}
-
-PIXMAN_EXPORT void *
-pixman_image_get_destroy_data (pixman_image_t *image)
-{
-  return image->common.destroy_data;
-}
-
-void
-_pixman_image_reset_clip_region (pixman_image_t *image)
-{
-    image->common.have_clip_region = FALSE;
-}
-
-/* Executive Summary: This function is a no-op that only exists
- * for historical reasons.
- *
- * There used to be a bug in the X server where it would rely on
- * out-of-bounds accesses when it was asked to composite with a
- * window as the source. It would create a pixman image pointing
- * to some bogus position in memory, but then set a clip region
- * to the position where the actual bits were.
- *
- * Due to a bug in old versions of pixman, where it would not clip
- * against the image bounds when a clip region was set, this would
- * actually work. So when the pixman bug was fixed, a workaround was
- * added to allow certain out-of-bound accesses. This function disabled
- * those workarounds.
- *
- * Since 0.21.2, pixman doesn't do these workarounds anymore, so now
- * this function is a no-op.
- */
-PIXMAN_EXPORT void
-pixman_disable_out_of_bounds_workaround (void)
-{
-}
-
-static void
-compute_image_info (pixman_image_t *image)
-{
-    pixman_format_code_t code;
-    uint32_t flags = 0;
-
-    /* Transform */
-    if (!image->common.transform)
-    {
-	flags |= (FAST_PATH_ID_TRANSFORM	|
-		  FAST_PATH_X_UNIT_POSITIVE	|
-		  FAST_PATH_Y_UNIT_ZERO		|
-		  FAST_PATH_AFFINE_TRANSFORM);
-    }
-    else
-    {
-	flags |= FAST_PATH_HAS_TRANSFORM;
-
-	if (image->common.transform->matrix[2][0] == 0			&&
-	    image->common.transform->matrix[2][1] == 0			&&
-	    image->common.transform->matrix[2][2] == pixman_fixed_1)
-	{
-	    flags |= FAST_PATH_AFFINE_TRANSFORM;
-
-	    if (image->common.transform->matrix[0][1] == 0 &&
-		image->common.transform->matrix[1][0] == 0)
-	    {
-		if (image->common.transform->matrix[0][0] == -pixman_fixed_1 &&
-		    image->common.transform->matrix[1][1] == -pixman_fixed_1)
-		{
-		    flags |= FAST_PATH_ROTATE_180_TRANSFORM;
-		}
-		flags |= FAST_PATH_SCALE_TRANSFORM;
-	    }
-	    else if (image->common.transform->matrix[0][0] == 0 &&
-	             image->common.transform->matrix[1][1] == 0)
-	    {
-		pixman_fixed_t m01 = image->common.transform->matrix[0][1];
-		pixman_fixed_t m10 = image->common.transform->matrix[1][0];
-
-		if (m01 == -pixman_fixed_1 && m10 == pixman_fixed_1)
-		    flags |= FAST_PATH_ROTATE_90_TRANSFORM;
-		else if (m01 == pixman_fixed_1 && m10 == -pixman_fixed_1)
-		    flags |= FAST_PATH_ROTATE_270_TRANSFORM;
-	    }
-	}
-
-	if (image->common.transform->matrix[0][0] > 0)
-	    flags |= FAST_PATH_X_UNIT_POSITIVE;
-
-	if (image->common.transform->matrix[1][0] == 0)
-	    flags |= FAST_PATH_Y_UNIT_ZERO;
-    }
-
-    /* Filter */
-    switch (image->common.filter)
-    {
-    case PIXMAN_FILTER_NEAREST:
-    case PIXMAN_FILTER_FAST:
-	flags |= (FAST_PATH_NEAREST_FILTER | FAST_PATH_NO_CONVOLUTION_FILTER);
-	break;
-
-    case PIXMAN_FILTER_BILINEAR:
-    case PIXMAN_FILTER_GOOD:
-    case PIXMAN_FILTER_BEST:
-	flags |= (FAST_PATH_BILINEAR_FILTER | FAST_PATH_NO_CONVOLUTION_FILTER);
-
-	/* Here we have a chance to optimize BILINEAR filter to NEAREST if
-	 * they are equivalent for the currently used transformation matrix.
-	 */
-	if (flags & FAST_PATH_ID_TRANSFORM)
-	{
-	    flags |= FAST_PATH_NEAREST_FILTER;
-	}
-	else if (flags & FAST_PATH_AFFINE_TRANSFORM)
-	{
-	    /* Suppose the transform is
-	     *
-	     *    [ t00, t01, t02 ]
-	     *    [ t10, t11, t12 ]
-	     *    [   0,   0,   1 ]
-	     *
-	     * and the destination coordinates are (n + 0.5, m + 0.5). Then
-	     * the transformed x coordinate is:
-	     *
-	     *     tx = t00 * (n + 0.5) + t01 * (m + 0.5) + t02
-	     *        = t00 * n + t01 * m + t02 + (t00 + t01) * 0.5
-	     *
-	     * which implies that if t00, t01 and t02 are all integers
-	     * and (t00 + t01) is odd, then tx will be an integer plus 0.5,
-	     * which means a BILINEAR filter will reduce to NEAREST. The same
-	     * applies in the y direction
-	     */
-	    pixman_fixed_t (*t)[3] = image->common.transform->matrix;
-
-	    if ((pixman_fixed_frac (
-		     t[0][0] | t[0][1] | t[0][2] |
-		     t[1][0] | t[1][1] | t[1][2]) == 0)			&&
-		(pixman_fixed_to_int (
-		    (t[0][0] + t[0][1]) & (t[1][0] + t[1][1])) % 2) == 1)
-	    {
-		/* FIXME: there are some affine-test failures, showing that
-		 * handling of BILINEAR and NEAREST filter is not quite
-		 * equivalent when getting close to 32K for the translation
-		 * components of the matrix. That's likely some bug, but for
-		 * now just skip BILINEAR->NEAREST optimization in this case.
-		 */
-		pixman_fixed_t magic_limit = pixman_int_to_fixed (30000);
-		if (image->common.transform->matrix[0][2] <= magic_limit  &&
-		    image->common.transform->matrix[1][2] <= magic_limit  &&
-		    image->common.transform->matrix[0][2] >= -magic_limit &&
-		    image->common.transform->matrix[1][2] >= -magic_limit)
-		{
-		    flags |= FAST_PATH_NEAREST_FILTER;
-		}
-	    }
-	}
-	break;
-
-    case PIXMAN_FILTER_CONVOLUTION:
-	break;
-
-    case PIXMAN_FILTER_SEPARABLE_CONVOLUTION:
-	flags |= FAST_PATH_SEPARABLE_CONVOLUTION_FILTER;
-	break;
-
-    default:
-	flags |= FAST_PATH_NO_CONVOLUTION_FILTER;
-	break;
-    }
-
-    /* Repeat mode */
-    switch (image->common.repeat)
-    {
-    case PIXMAN_REPEAT_NONE:
-	flags |=
-	    FAST_PATH_NO_REFLECT_REPEAT		|
-	    FAST_PATH_NO_PAD_REPEAT		|
-	    FAST_PATH_NO_NORMAL_REPEAT;
-	break;
-
-    case PIXMAN_REPEAT_REFLECT:
-	flags |=
-	    FAST_PATH_NO_PAD_REPEAT		|
-	    FAST_PATH_NO_NONE_REPEAT		|
-	    FAST_PATH_NO_NORMAL_REPEAT;
-	break;
-
-    case PIXMAN_REPEAT_PAD:
-	flags |=
-	    FAST_PATH_NO_REFLECT_REPEAT		|
-	    FAST_PATH_NO_NONE_REPEAT		|
-	    FAST_PATH_NO_NORMAL_REPEAT;
-	break;
-
-    default:
-	flags |=
-	    FAST_PATH_NO_REFLECT_REPEAT		|
-	    FAST_PATH_NO_PAD_REPEAT		|
-	    FAST_PATH_NO_NONE_REPEAT;
-	break;
-    }
-
-    /* Component alpha */
-    if (image->common.component_alpha)
-	flags |= FAST_PATH_COMPONENT_ALPHA;
-    else
-	flags |= FAST_PATH_UNIFIED_ALPHA;
-
-    flags |= (FAST_PATH_NO_ACCESSORS | FAST_PATH_NARROW_FORMAT);
-
-    /* Type specific checks */
-    switch (image->type)
-    {
-    case SOLID:
-	code = PIXMAN_solid;
-
-	if (image->solid.color.alpha == 0xffff)
-	    flags |= FAST_PATH_IS_OPAQUE;
-	break;
-
-    case BITS:
-	if (image->bits.width == 1	&&
-	    image->bits.height == 1	&&
-	    image->common.repeat != PIXMAN_REPEAT_NONE)
-	{
-	    code = PIXMAN_solid;
-	}
-	else
-	{
-	    code = image->bits.format;
-	    flags |= FAST_PATH_BITS_IMAGE;
-	}
-
-	if (!PIXMAN_FORMAT_A (image->bits.format)				&&
-	    PIXMAN_FORMAT_TYPE (image->bits.format) != PIXMAN_TYPE_GRAY		&&
-	    PIXMAN_FORMAT_TYPE (image->bits.format) != PIXMAN_TYPE_COLOR)
-	{
-	    flags |= FAST_PATH_SAMPLES_OPAQUE;
-
-	    if (image->common.repeat != PIXMAN_REPEAT_NONE)
-		flags |= FAST_PATH_IS_OPAQUE;
-	}
-
-	if (image->bits.read_func || image->bits.write_func)
-	    flags &= ~FAST_PATH_NO_ACCESSORS;
-
-	if (PIXMAN_FORMAT_IS_WIDE (image->bits.format))
-	    flags &= ~FAST_PATH_NARROW_FORMAT;
-	break;
-
-    case RADIAL:
-	code = PIXMAN_unknown;
-
-	/*
-	 * As explained in pixman-radial-gradient.c, every point of
-	 * the plane has a valid associated radius (and thus will be
-	 * colored) if and only if a is negative (i.e. one of the two
-	 * circles contains the other one).
-	 */
-
-        if (image->radial.a >= 0)
-	    break;
-
-	/* Fall through */
-
-    case CONICAL:
-    case LINEAR:
-	code = PIXMAN_unknown;
-
-	if (image->common.repeat != PIXMAN_REPEAT_NONE)
-	{
-	    int i;
-
-	    flags |= FAST_PATH_IS_OPAQUE;
-	    for (i = 0; i < image->gradient.n_stops; ++i)
-	    {
-		if (image->gradient.stops[i].color.alpha != 0xffff)
-		{
-		    flags &= ~FAST_PATH_IS_OPAQUE;
-		    break;
-		}
-	    }
-	}
-	break;
-
-    default:
-	code = PIXMAN_unknown;
-	break;
-    }
-
-    /* Alpha maps are only supported for BITS images, so it's always
-     * safe to ignore their presense for non-BITS images
-     */
-    if (!image->common.alpha_map || image->type != BITS)
-    {
-	flags |= FAST_PATH_NO_ALPHA_MAP;
-    }
-    else
-    {
-	if (PIXMAN_FORMAT_IS_WIDE (image->common.alpha_map->format))
-	    flags &= ~FAST_PATH_NARROW_FORMAT;
-    }
-
-    /* Both alpha maps and convolution filters can introduce
-     * non-opaqueness in otherwise opaque images. Also
-     * an image with component alpha turned on is only opaque
-     * if all channels are opaque, so we simply turn it off
-     * unconditionally for those images.
-     */
-    if (image->common.alpha_map						||
-	image->common.filter == PIXMAN_FILTER_CONVOLUTION		||
-        image->common.filter == PIXMAN_FILTER_SEPARABLE_CONVOLUTION     ||
-	image->common.component_alpha)
-    {
-	flags &= ~(FAST_PATH_IS_OPAQUE | FAST_PATH_SAMPLES_OPAQUE);
-    }
-
-    image->common.flags = flags;
-    image->common.extended_format_code = code;
-}
-
-void
-_pixman_image_validate (pixman_image_t *image)
-{
-    if (image->common.dirty)
-    {
-	compute_image_info (image);
-
-	/* It is important that property_changed is
-	 * called *after* compute_image_info() because
-	 * property_changed() can make use of the flags
-	 * to set up accessors etc.
-	 */
-	if (image->common.property_changed)
-	    image->common.property_changed (image);
-
-	image->common.dirty = FALSE;
-    }
-
-    if (image->common.alpha_map)
-	_pixman_image_validate ((pixman_image_t *)image->common.alpha_map);
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_image_set_clip_region32 (pixman_image_t *   image,
-                                pixman_region32_t *region)
-{
-    image_common_t *common = (image_common_t *)image;
-    pixman_bool_t result;
-
-    if (region)
-    {
-	if ((result = pixman_region32_copy (&common->clip_region, region)))
-	    image->common.have_clip_region = TRUE;
-    }
-    else
-    {
-	_pixman_image_reset_clip_region (image);
-
-	result = TRUE;
-    }
-
-    image_property_changed (image);
-
-    return result;
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_image_set_clip_region (pixman_image_t *   image,
-                              pixman_region16_t *region)
-{
-    image_common_t *common = (image_common_t *)image;
-    pixman_bool_t result;
-
-    if (region)
-    {
-	if ((result = pixman_region32_copy_from_region16 (&common->clip_region, region)))
-	    image->common.have_clip_region = TRUE;
-    }
-    else
-    {
-	_pixman_image_reset_clip_region (image);
-
-	result = TRUE;
-    }
-
-    image_property_changed (image);
-
-    return result;
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_has_client_clip (pixman_image_t *image,
-                                  pixman_bool_t   client_clip)
-{
-    image->common.client_clip = client_clip;
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_image_set_transform (pixman_image_t *          image,
-                            const pixman_transform_t *transform)
-{
-    static const pixman_transform_t id =
-    {
-	{ { pixman_fixed_1, 0, 0 },
-	  { 0, pixman_fixed_1, 0 },
-	  { 0, 0, pixman_fixed_1 } }
-    };
-
-    image_common_t *common = (image_common_t *)image;
-    pixman_bool_t result;
-
-    if (common->transform == transform)
-	return TRUE;
-
-    if (!transform || memcmp (&id, transform, sizeof (pixman_transform_t)) == 0)
-    {
-	free (common->transform);
-	common->transform = NULL;
-	result = TRUE;
-
-	goto out;
-    }
-
-    if (common->transform &&
-	memcmp (common->transform, transform, sizeof (pixman_transform_t)) == 0)
-    {
-	return TRUE;
-    }
-
-    if (common->transform == NULL)
-	common->transform = malloc (sizeof (pixman_transform_t));
-
-    if (common->transform == NULL)
-    {
-	result = FALSE;
-
-	goto out;
-    }
-
-    memcpy (common->transform, transform, sizeof(pixman_transform_t));
-
-    result = TRUE;
-
-out:
-    image_property_changed (image);
-
-    return result;
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_repeat (pixman_image_t *image,
-                         pixman_repeat_t repeat)
-{
-    if (image->common.repeat == repeat)
-	return;
-
-    image->common.repeat = repeat;
-
-    image_property_changed (image);
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_dither (pixman_image_t *image,
-			 pixman_dither_t dither)
-{
-    if (image->type == BITS)
-    {
-	if (image->bits.dither == dither)
-	    return;
-
-	image->bits.dither = dither;
-
-	image_property_changed (image);
-    }
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_dither_offset (pixman_image_t *image,
-				int             offset_x,
-				int             offset_y)
-{
-    if (image->type == BITS)
-    {
-	if (image->bits.dither_offset_x == offset_x &&
-	    image->bits.dither_offset_y == offset_y)
-	{
-	    return;
-	}
-
-	image->bits.dither_offset_x = offset_x;
-	image->bits.dither_offset_y = offset_y;
-
-	image_property_changed (image);
-    }
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_image_set_filter (pixman_image_t *      image,
-                         pixman_filter_t       filter,
-                         const pixman_fixed_t *params,
-                         int                   n_params)
-{
-    image_common_t *common = (image_common_t *)image;
-    pixman_fixed_t *new_params;
-
-    if (params == common->filter_params && filter == common->filter)
-	return TRUE;
-
-    if (filter == PIXMAN_FILTER_SEPARABLE_CONVOLUTION)
-    {
-	int width = pixman_fixed_to_int (params[0]);
-	int height = pixman_fixed_to_int (params[1]);
-	int x_phase_bits = pixman_fixed_to_int (params[2]);
-	int y_phase_bits = pixman_fixed_to_int (params[3]);
-	int n_x_phases = (1 << x_phase_bits);
-	int n_y_phases = (1 << y_phase_bits);
-
-	return_val_if_fail (
-	    n_params == 4 + n_x_phases * width + n_y_phases * height, FALSE);
-    }
-    
-    new_params = NULL;
-    if (params)
-    {
-	new_params = pixman_malloc_ab (n_params, sizeof (pixman_fixed_t));
-	if (!new_params)
-	    return FALSE;
-
-	memcpy (new_params,
-	        params, n_params * sizeof (pixman_fixed_t));
-    }
-
-    common->filter = filter;
-
-    if (common->filter_params)
-	free (common->filter_params);
-
-    common->filter_params = new_params;
-    common->n_filter_params = n_params;
-
-    image_property_changed (image);
-    return TRUE;
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_source_clipping (pixman_image_t *image,
-                                  pixman_bool_t   clip_sources)
-{
-    if (image->common.clip_sources == clip_sources)
-	return;
-
-    image->common.clip_sources = clip_sources;
-
-    image_property_changed (image);
-}
-
-/* Unlike all the other property setters, this function does not
- * copy the content of indexed. Doing this copying is simply
- * way, way too expensive.
- */
-PIXMAN_EXPORT void
-pixman_image_set_indexed (pixman_image_t *        image,
-                          const pixman_indexed_t *indexed)
-{
-    bits_image_t *bits = (bits_image_t *)image;
-
-    if (bits->indexed == indexed)
-	return;
-
-    bits->indexed = indexed;
-
-    image_property_changed (image);
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_alpha_map (pixman_image_t *image,
-                            pixman_image_t *alpha_map,
-                            int16_t         x,
-                            int16_t         y)
-{
-    image_common_t *common = (image_common_t *)image;
-
-    return_if_fail (!alpha_map || alpha_map->type == BITS);
-
-    if (alpha_map && common->alpha_count > 0)
-    {
-	/* If this image is being used as an alpha map itself,
-	 * then you can't give it an alpha map of its own.
-	 */
-	return;
-    }
-
-    if (alpha_map && alpha_map->common.alpha_map)
-    {
-	/* If the image has an alpha map of its own,
-	 * then it can't be used as an alpha map itself
-	 */
-	return;
-    }
-
-    if (common->alpha_map != (bits_image_t *)alpha_map)
-    {
-	if (common->alpha_map)
-	{
-	    common->alpha_map->common.alpha_count--;
-
-	    pixman_image_unref ((pixman_image_t *)common->alpha_map);
-	}
-
-	if (alpha_map)
-	{
-	    common->alpha_map = (bits_image_t *)pixman_image_ref (alpha_map);
-
-	    common->alpha_map->common.alpha_count++;
-	}
-	else
-	{
-	    common->alpha_map = NULL;
-	}
-    }
-
-    common->alpha_origin_x = x;
-    common->alpha_origin_y = y;
-
-    image_property_changed (image);
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_component_alpha   (pixman_image_t *image,
-                                    pixman_bool_t   component_alpha)
-{
-    if (image->common.component_alpha == component_alpha)
-	return;
-
-    image->common.component_alpha = component_alpha;
-
-    image_property_changed (image);
-}
-
-PIXMAN_EXPORT pixman_bool_t
-pixman_image_get_component_alpha   (pixman_image_t       *image)
-{
-    return image->common.component_alpha;
-}
-
-PIXMAN_EXPORT void
-pixman_image_set_accessors (pixman_image_t *           image,
-                            pixman_read_memory_func_t  read_func,
-                            pixman_write_memory_func_t write_func)
-{
-    return_if_fail (image != NULL);
-
-    if (image->type == BITS)
-    {
-	/* Accessors only work for <= 32 bpp. */
-	if (PIXMAN_FORMAT_BPP(image->bits.format) > 32)
-	    return_if_fail (!read_func && !write_func);
-
-	image->bits.read_func = read_func;
-	image->bits.write_func = write_func;
-
-	image_property_changed (image);
-    }
-}
-
-PIXMAN_EXPORT uint32_t *
-pixman_image_get_data (pixman_image_t *image)
-{
-    if (image->type == BITS)
-	return image->bits.bits;
-
-    return NULL;
-}
-
-PIXMAN_EXPORT int
-pixman_image_get_width (pixman_image_t *image)
-{
-    if (image->type == BITS)
-	return image->bits.width;
-
-    return 0;
-}
-
-PIXMAN_EXPORT int
-pixman_image_get_height (pixman_image_t *image)
-{
-    if (image->type == BITS)
-	return image->bits.height;
-
-    return 0;
-}
-
-PIXMAN_EXPORT int
-pixman_image_get_stride (pixman_image_t *image)
-{
-    if (image->type == BITS)
-	return image->bits.rowstride * (int) sizeof (uint32_t);
-
-    return 0;
-}
-
-PIXMAN_EXPORT int
-pixman_image_get_depth (pixman_image_t *image)
-{
-    if (image->type == BITS)
-	return PIXMAN_FORMAT_DEPTH (image->bits.format);
-
-    return 0;
-}
-
-PIXMAN_EXPORT pixman_format_code_t
-pixman_image_get_format (pixman_image_t *image)
-{
-    if (image->type == BITS)
-	return image->bits.format;
-
-    return PIXMAN_null;
-}
-
-uint32_t
-_pixman_image_get_solid (pixman_implementation_t *imp,
-			 pixman_image_t *         image,
-                         pixman_format_code_t     format)
-{
-    uint32_t result;
-
-    if (image->type == SOLID)
-    {
-	result = image->solid.color_32;
-    }
-    else if (image->type == BITS)
-    {
-	if (image->bits.format == PIXMAN_a8r8g8b8)
-	    result = image->bits.bits[0];
-	else if (image->bits.format == PIXMAN_x8r8g8b8)
-	    result = image->bits.bits[0] | 0xff000000;
-	else if (image->bits.format == PIXMAN_a8)
-	    result = (uint32_t)(*(uint8_t *)image->bits.bits) << 24;
-	else
-	    goto otherwise;
-    }
-    else
-    {
-	pixman_iter_t iter;
-
-    otherwise:
-	_pixman_implementation_iter_init (
-	    imp, &iter, image, 0, 0, 1, 1,
-	    (uint8_t *)&result,
-	    ITER_NARROW | ITER_SRC, image->common.flags);
-	
-	result = *iter.get_scanline (&iter, NULL);
-
-	if (iter.fini)
-	    iter.fini (&iter);
-    }
-
-    /* If necessary, convert RGB <--> BGR. */
-    if (PIXMAN_FORMAT_TYPE (format) != PIXMAN_TYPE_ARGB
-	&& PIXMAN_FORMAT_TYPE (format) != PIXMAN_TYPE_ARGB_SRGB)
-    {
-	result = (((result & 0xff000000) >>  0) |
-	          ((result & 0x00ff0000) >> 16) |
-	          ((result & 0x0000ff00) >>  0) |
-	          ((result & 0x000000ff) << 16));
-    }
-
-    return result;
-}