#include <assert.h>
#include "pixman-private.h"
-#include "pixman-combine32.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)
+_pixman_init_gradient (gradient_t * gradient,
+ const pixman_gradient_stop_t *stops,
+ int n_stops)
{
return_val_if_fail (n_stops > 0, FALSE);
- gradient->stops = pixman_malloc_ab (n_stops, sizeof (pixman_gradient_stop_t));
+ /* 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->stop_range = 0xffff;
- gradient->color_table = NULL;
- gradient->color_table_size = 0;
- gradient->common.class = SOURCE_IMAGE_CLASS_UNKNOWN;
+ gradient->common.property_changed = gradient_property_changed;
return TRUE;
}
-/*
- * By default, just evaluate the image at 32bpp and expand. Individual image
- * types can plug in a better scanline getter if they want to. For example
- * we could produce smoother gradients by evaluating them at higher color
- * depth, but that's a project for the future.
- */
void
-_pixman_image_get_scanline_generic_64 (pixman_image_t * pict, int x, int y,
- int width, uint32_t *buffer,
- const uint32_t *mask, uint32_t mask_bits)
-{
- uint32_t *mask8 = NULL;
-
- // Contract the mask image, if one exists, so that the 32-bit fetch
- // function can use it.
- if (mask) {
- mask8 = pixman_malloc_ab(width, sizeof(uint32_t));
- if (!mask8)
- return;
-
- pixman_contract (mask8, (uint64_t *)mask, width);
- }
-
- // Fetch the source image into the first half of buffer.
- _pixman_image_get_scanline_32 (pict, x, y, width, (uint32_t*)buffer, mask8,
- mask_bits);
-
- // Expand from 32bpp to 64bpp in place.
- pixman_expand ((uint64_t *)buffer, buffer, PIXMAN_a8r8g8b8, width);
-
- free (mask8);
+_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_image_t *
-_pixman_image_allocate (void)
+pixman_bool_t
+_pixman_image_fini (pixman_image_t *image)
{
- pixman_image_t *image = malloc (sizeof (pixman_image_t));
+ image_common_t *common = (image_common_t *)image;
- if (image)
+ common->ref_count--;
+
+ if (common->ref_count == 0)
{
- image_common_t *common = &image->common;
+ if (image->common.destroy_func)
+ image->common.destroy_func (image, image->common.destroy_data);
- pixman_region32_init (&common->clip_region);
+ pixman_region32_fini (&common->clip_region);
- 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->read_func = NULL;
- common->write_func = NULL;
- common->classify = NULL;
- common->client_clip = FALSE;
- common->destroy_func = NULL;
- common->destroy_data = NULL;
+ 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 image;
+ return FALSE;
}
-source_pict_class_t
-_pixman_image_classify (pixman_image_t *image,
- int x,
- int y,
- int width,
- int height)
+pixman_image_t *
+_pixman_image_allocate (void)
{
- if (image->common.classify)
- return image->common.classify (image, x, y, width, height);
- else
- return SOURCE_IMAGE_CLASS_UNKNOWN;
-}
+ pixman_image_t *image = malloc (sizeof (pixman_image_t));
-void
-_pixman_image_get_scanline_32 (pixman_image_t *image, int x, int y, int width, uint32_t *buffer,
- const uint32_t *mask, uint32_t mask_bits)
-{
- image->common.get_scanline_32 (image, x, y, width, buffer, mask, mask_bits);
-}
+ if (image)
+ _pixman_image_init (image);
-/* Even thought the type of buffer is uint32_t *, the function actually expects
- * a uint64_t *buffer.
- */
-void
-_pixman_image_get_scanline_64 (pixman_image_t *image, int x, int y, int width, uint32_t *buffer,
- const uint32_t *unused, uint32_t unused2)
-{
- image->common.get_scanline_64 (image, x, y, width, buffer, unused, unused2);
+ return image;
}
static void
image_property_changed (pixman_image_t *image)
{
- image->common.property_changed (image);
+ image->common.dirty = TRUE;
}
/* Ref Counting */
PIXMAN_EXPORT pixman_bool_t
pixman_image_unref (pixman_image_t *image)
{
- image_common_t *common = (image_common_t *)image;
+ if (_pixman_image_fini (image))
+ {
+ free (image);
+ return TRUE;
+ }
- common->ref_count--;
+ return FALSE;
+}
- if (common->ref_count == 0)
+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)
{
- if (image->common.destroy_func)
- image->common.destroy_func (image, image->common.destroy_data);
-
- pixman_region32_fini (&common->clip_region);
+ 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 (common->transform)
- free (common->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 == -1 && m10 == 1)
+ flags |= FAST_PATH_ROTATE_90_TRANSFORM;
+ else if (m01 == 1 && m10 == -1)
+ flags |= FAST_PATH_ROTATE_270_TRANSFORM;
+ }
+ }
- if (common->filter_params)
- free (common->filter_params);
+ if (image->common.transform->matrix[0][0] > 0)
+ flags |= FAST_PATH_X_UNIT_POSITIVE;
- if (common->alpha_map)
- pixman_image_unref ((pixman_image_t *)common->alpha_map);
+ if (image->common.transform->matrix[1][0] == 0)
+ flags |= FAST_PATH_Y_UNIT_ZERO;
+ }
-#if 0
- if (image->type == BITS && image->bits.indexed)
- free (image->bits.indexed);
-#endif
+ /* Filter */
+ switch (image->common.filter)
+ {
+ case PIXMAN_FILTER_NEAREST:
+ case PIXMAN_FILTER_FAST:
+ flags |= (FAST_PATH_NEAREST_FILTER | FAST_PATH_NO_CONVOLUTION_FILTER);
+ break;
-#if 0
- memset (image, 0xaa, sizeof (pixman_image_t));
-#endif
- if (image->type == LINEAR || image->type == RADIAL || image->type == CONICAL)
+ 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)
{
- if (image->gradient.stops)
- free (image->gradient.stops);
+ flags |= FAST_PATH_NEAREST_FILTER;
+ }
+ else if (
+ /* affine and integer translation components in matrix ... */
+ ((flags & FAST_PATH_AFFINE_TRANSFORM) &&
+ !pixman_fixed_frac (image->common.transform->matrix[0][2] |
+ image->common.transform->matrix[1][2])) &&
+ (
+ /* ... combined with a simple rotation */
+ (flags & (FAST_PATH_ROTATE_90_TRANSFORM |
+ FAST_PATH_ROTATE_180_TRANSFORM |
+ FAST_PATH_ROTATE_270_TRANSFORM)) ||
+ /* ... or combined with a simple non-rotated translation */
+ (image->common.transform->matrix[0][0] == pixman_fixed_1 &&
+ image->common.transform->matrix[1][1] == pixman_fixed_1 &&
+ image->common.transform->matrix[0][1] == 0 &&
+ image->common.transform->matrix[1][0] == 0)
+ )
+ )
+ {
+ /* 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;
- if (image->type == BITS && image->bits.free_me)
- free (image->bits.free_me);
+ default:
+ flags |= FAST_PATH_NO_CONVOLUTION_FILTER;
+ break;
+ }
- free (image);
+ /* 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;
- return TRUE;
+ 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;
}
- return FALSE;
-}
+ /* Component alpha */
+ if (image->common.component_alpha)
+ flags |= FAST_PATH_COMPONENT_ALPHA;
+ else
+ flags |= FAST_PATH_UNIFIED_ALPHA;
-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;
-}
-
+ 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;
-/* Constructors */
+ default:
+ code = PIXMAN_unknown;
+ break;
+ }
+
+ /* Alpha map */
+ if (!image->common.alpha_map)
+ {
+ 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.component_alpha)
+ {
+ flags &= ~(FAST_PATH_IS_OPAQUE | FAST_PATH_SAMPLES_OPAQUE);
+ }
+
+ image->common.flags = flags;
+ image->common.extended_format_code = code;
+}
void
-_pixman_image_reset_clip_region (pixman_image_t *image)
+_pixman_image_validate (pixman_image_t *image)
{
- image->common.have_clip_region = FALSE;
+ 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)
+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;
return result;
}
-
PIXMAN_EXPORT pixman_bool_t
-pixman_image_set_clip_region (pixman_image_t *image,
- pixman_region16_t *region)
+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;
PIXMAN_EXPORT void
pixman_image_set_has_client_clip (pixman_image_t *image,
- pixman_bool_t client_clip)
+ 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)
+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 }
- }
+ { 0, 0, pixman_fixed_1 } }
};
image_common_t *common = (image_common_t *)image;
if (common->transform == transform)
return TRUE;
- if (memcmp (&id, transform, sizeof (pixman_transform_t)) == 0)
+ if (!transform || memcmp (&id, transform, sizeof (pixman_transform_t)) == 0)
{
- free(common->transform);
+ 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));
+ memcpy (common->transform, transform, sizeof(pixman_transform_t));
+
+ result = TRUE;
out:
image_property_changed (image);
-
- return TRUE;
+
+ return result;
}
PIXMAN_EXPORT void
-pixman_image_set_repeat (pixman_image_t *image,
- pixman_repeat_t repeat)
+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 pixman_bool_t
-pixman_image_set_filter (pixman_image_t *image,
- pixman_filter_t filter,
- const pixman_fixed_t *params,
- int n_params)
+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;
return FALSE;
memcpy (new_params,
- params, n_params * sizeof (pixman_fixed_t));
+ params, n_params * sizeof (pixman_fixed_t));
}
common->filter = filter;
}
PIXMAN_EXPORT void
-pixman_image_set_source_clipping (pixman_image_t *image,
- pixman_bool_t clip_sources)
+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
* way, way too expensive.
*/
PIXMAN_EXPORT void
-pixman_image_set_indexed (pixman_image_t *image,
- const pixman_indexed_t *indexed)
+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)
+ 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;
}
PIXMAN_EXPORT void
-pixman_image_set_component_alpha (pixman_image_t *image,
- pixman_bool_t component_alpha)
+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)
+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);
- image->common.read_func = read_func;
- image->common.write_func = write_func;
+ if (image->type == BITS)
+ {
+ image->bits.read_func = read_func;
+ image->bits.write_func = write_func;
- image_property_changed (image);
+ image_property_changed (image);
+ }
}
PIXMAN_EXPORT uint32_t *
return 0;
}
-pixman_bool_t
-_pixman_image_is_solid (pixman_image_t *image)
+PIXMAN_EXPORT pixman_format_code_t
+pixman_image_get_format (pixman_image_t *image)
{
- if (image->type == SOLID)
- return TRUE;
-
- if (image->type != BITS ||
- image->bits.width != 1 ||
- image->bits.height != 1)
- {
- return FALSE;
- }
-
- if (image->common.repeat == PIXMAN_REPEAT_NONE)
- return FALSE;
+ if (image->type == BITS)
+ return image->bits.format;
- return TRUE;
+ return 0;
}
uint32_t
-_pixman_image_get_solid (pixman_image_t *image, pixman_format_code_t format)
+_pixman_image_get_solid (pixman_implementation_t *imp,
+ pixman_image_t * image,
+ pixman_format_code_t format)
{
uint32_t result;
-
- _pixman_image_get_scanline_32 (image, 0, 0, 1, &result, NULL, 0);
-
- /* If necessary, convert RGB <--> BGR. */
- if (PIXMAN_FORMAT_TYPE (format) != PIXMAN_TYPE_ARGB)
- {
- result = (((result & 0xff000000) >> 0) |
- ((result & 0x00ff0000) >> 16) |
- ((result & 0x0000ff00) >> 0) |
- ((result & 0x000000ff) << 16));
- }
-
- return result;
-}
+ pixman_iter_t iter;
-pixman_bool_t
-_pixman_image_is_opaque (pixman_image_t *image)
-{
- int i;
+ _pixman_implementation_src_iter_init (
+ imp, &iter, image, 0, 0, 1, 1,
+ (uint8_t *)&result, ITER_NARROW);
- if (image->common.alpha_map)
- return FALSE;
+ result = *iter.get_scanline (&iter, NULL);
- switch (image->type)
+ /* If necessary, convert RGB <--> BGR. */
+ if (PIXMAN_FORMAT_TYPE (format) != PIXMAN_TYPE_ARGB)
{
- case BITS:
- if (image->common.repeat == PIXMAN_REPEAT_NONE)
- return FALSE;
-
- if (PIXMAN_FORMAT_A (image->bits.format))
- return FALSE;
- break;
-
- case LINEAR:
- case RADIAL:
- if (image->common.repeat == PIXMAN_REPEAT_NONE)
- return FALSE;
-
- for (i = 0; i < image->gradient.n_stops; ++i)
- {
- if (image->gradient.stops[i].color.alpha != 0xffff)
- return FALSE;
- }
- break;
-
- case CONICAL:
- /* Conical gradients always have a transparent border */
- return FALSE;
- break;
-
- case SOLID:
- if (ALPHA_8 (image->solid.color) != 0xff)
- return FALSE;
- break;
+ result = (((result & 0xff000000) >> 0) |
+ ((result & 0x00ff0000) >> 16) |
+ ((result & 0x0000ff00) >> 0) |
+ ((result & 0x000000ff) << 16));
}
- /* Convolution filters can introduce translucency if the sum of the
- * weights is lower than 1.
- */
- if (image->common.filter == PIXMAN_FILTER_CONVOLUTION)
- return FALSE;
-
- return TRUE;
+ return result;
}
projects / profile / ivi / pixman.git / blobdiff