/*
* Copyright © 2000 SuSE, Inc.
* Copyright © 2007 Red Hat, Inc.
+ * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
+ * 2005 Lars Knoll & Zack Rusin, Trolltech
*
* 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.
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard 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.
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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.
*/
#include <config.h>
image->source.class = SOURCE_IMAGE_CLASS_HORIZONTAL;
else if (factors[1] == factors[0])
image->source.class = SOURCE_IMAGE_CLASS_VERTICAL;
-
+
return image->source.class;
}
static void
+linear_gradient_get_scanline_32 (pixman_image_t *image, int x, int y, int width,
+ uint32_t *buffer, uint32_t *mask, uint32_t maskBits)
+{
+ pixman_vector_t v, unit;
+ pixman_fixed_32_32_t l;
+ pixman_fixed_48_16_t dx, dy, a, b, off;
+ gradient_t *gradient = (gradient_t *)image;
+ source_image_t *source = (source_image_t *)image;
+ linear_gradient_t *linear = (linear_gradient_t *)image;
+ uint32_t *end = buffer + width;
+ GradientWalker walker;
+
+ _pixman_gradient_walker_init (&walker, gradient, source->common.repeat);
+
+ /* reference point is the center of the pixel */
+ v.vector[0] = pixman_int_to_fixed(x) + pixman_fixed_1/2;
+ v.vector[1] = pixman_int_to_fixed(y) + pixman_fixed_1/2;
+ v.vector[2] = pixman_fixed_1;
+ if (source->common.transform) {
+ if (!pixman_transform_point_3d (source->common.transform, &v))
+ return;
+ unit.vector[0] = source->common.transform->matrix[0][0];
+ unit.vector[1] = source->common.transform->matrix[1][0];
+ unit.vector[2] = source->common.transform->matrix[2][0];
+ } else {
+ unit.vector[0] = pixman_fixed_1;
+ unit.vector[1] = 0;
+ unit.vector[2] = 0;
+ }
+
+ dx = linear->p2.x - linear->p1.x;
+ dy = linear->p2.y - linear->p1.y;
+ l = dx*dx + dy*dy;
+ if (l != 0) {
+ a = (dx << 32) / l;
+ b = (dy << 32) / l;
+ off = (-a*linear->p1.x - b*linear->p1.y)>>16;
+ }
+ if (l == 0 || (unit.vector[2] == 0 && v.vector[2] == pixman_fixed_1)) {
+ pixman_fixed_48_16_t inc, t;
+ /* affine transformation only */
+ if (l == 0) {
+ t = 0;
+ inc = 0;
+ } else {
+ t = ((a*v.vector[0] + b*v.vector[1]) >> 16) + off;
+ inc = (a * unit.vector[0] + b * unit.vector[1]) >> 16;
+ }
+
+ if (source->class == SOURCE_IMAGE_CLASS_VERTICAL)
+ {
+ register uint32_t color;
+
+ color = _pixman_gradient_walker_pixel( &walker, t );
+ while (buffer < end)
+ *(buffer++) = color;
+ }
+ else
+ {
+ if (!mask) {
+ while (buffer < end)
+ {
+ *(buffer) = _pixman_gradient_walker_pixel (&walker, t);
+ buffer += 1;
+ t += inc;
+ }
+ } else {
+ while (buffer < end) {
+ if (*mask++ & maskBits)
+ {
+ *(buffer) = _pixman_gradient_walker_pixel (&walker, t);
+ }
+ buffer += 1;
+ t += inc;
+ }
+ }
+ }
+ }
+ else /* projective transformation */
+ {
+ pixman_fixed_48_16_t t;
+
+ if (source->class == SOURCE_IMAGE_CLASS_VERTICAL)
+ {
+ register uint32_t color;
+
+ if (v.vector[2] == 0)
+ {
+ t = 0;
+ }
+ else
+ {
+ pixman_fixed_48_16_t x, y;
+
+ x = ((pixman_fixed_48_16_t) v.vector[0] << 16) / v.vector[2];
+ y = ((pixman_fixed_48_16_t) v.vector[1] << 16) / v.vector[2];
+ t = ((a * x + b * y) >> 16) + off;
+ }
+
+ color = _pixman_gradient_walker_pixel( &walker, t );
+ while (buffer < end)
+ *(buffer++) = color;
+ }
+ else
+ {
+ while (buffer < end)
+ {
+ if (!mask || *mask++ & maskBits)
+ {
+ if (v.vector[2] == 0) {
+ t = 0;
+ } else {
+ pixman_fixed_48_16_t x, y;
+ x = ((pixman_fixed_48_16_t)v.vector[0] << 16) / v.vector[2];
+ y = ((pixman_fixed_48_16_t)v.vector[1] << 16) / v.vector[2];
+ t = ((a*x + b*y) >> 16) + off;
+ }
+ *(buffer) = _pixman_gradient_walker_pixel (&walker, t);
+ }
+ ++buffer;
+ v.vector[0] += unit.vector[0];
+ v.vector[1] += unit.vector[1];
+ v.vector[2] += unit.vector[2];
+ }
+ }
+ }
+}
+
+static void
linear_gradient_property_changed (pixman_image_t *image)
{
- image->common.get_scanline_32 = (scanFetchProc)pixmanFetchGradient;
+ image->common.get_scanline_32 = (scanFetchProc)linear_gradient_get_scanline_32;
image->common.get_scanline_64 = (scanFetchProc)_pixman_image_get_scanline_64_generic;
}
image->source.class = SOURCE_IMAGE_CLASS_UNKNOWN;
image->common.classify = linear_gradient_classify;
image->common.property_changed = linear_gradient_property_changed;
-
+
linear_gradient_property_changed (image);
return image;
_pixman_gradient_walker_init (&walker, gradient, pict->common.repeat);
if (pict->common.type == LINEAR) {
- pixman_vector_t v, unit;
- pixman_fixed_32_32_t l;
- pixman_fixed_48_16_t dx, dy, a, b, off;
- linear_gradient_t *linear = (linear_gradient_t *)pict;
-
- /* reference point is the center of the pixel */
- v.vector[0] = pixman_int_to_fixed(x) + pixman_fixed_1/2;
- v.vector[1] = pixman_int_to_fixed(y) + pixman_fixed_1/2;
- v.vector[2] = pixman_fixed_1;
- if (pict->common.transform) {
- if (!pixman_transform_point_3d (pict->common.transform, &v))
- return;
- unit.vector[0] = pict->common.transform->matrix[0][0];
- unit.vector[1] = pict->common.transform->matrix[1][0];
- unit.vector[2] = pict->common.transform->matrix[2][0];
- } else {
- unit.vector[0] = pixman_fixed_1;
- unit.vector[1] = 0;
- unit.vector[2] = 0;
- }
-
- dx = linear->p2.x - linear->p1.x;
- dy = linear->p2.y - linear->p1.y;
- l = dx*dx + dy*dy;
- if (l != 0) {
- a = (dx << 32) / l;
- b = (dy << 32) / l;
- off = (-a*linear->p1.x - b*linear->p1.y)>>16;
- }
- if (l == 0 || (unit.vector[2] == 0 && v.vector[2] == pixman_fixed_1)) {
- pixman_fixed_48_16_t inc, t;
- /* affine transformation only */
- if (l == 0) {
- t = 0;
- inc = 0;
- } else {
- t = ((a*v.vector[0] + b*v.vector[1]) >> 16) + off;
- inc = (a * unit.vector[0] + b * unit.vector[1]) >> 16;
- }
-
- if (pict->class == SOURCE_IMAGE_CLASS_VERTICAL)
- {
- register uint32_t color;
-
- color = _pixman_gradient_walker_pixel( &walker, t );
- while (buffer < end)
- *(buffer++) = color;
- }
- else
- {
- if (!mask) {
- while (buffer < end)
- {
- *(buffer) = _pixman_gradient_walker_pixel (&walker, t);
- buffer += 1;
- t += inc;
- }
- } else {
- while (buffer < end) {
- if (*mask++ & maskBits)
- {
- *(buffer) = _pixman_gradient_walker_pixel (&walker, t);
- }
- buffer += 1;
- t += inc;
- }
- }
- }
- }
- else /* projective transformation */
- {
- pixman_fixed_48_16_t t;
-
- if (pict->class == SOURCE_IMAGE_CLASS_VERTICAL)
- {
- register uint32_t color;
-
- if (v.vector[2] == 0)
- {
- t = 0;
- }
- else
- {
- pixman_fixed_48_16_t x, y;
-
- x = ((pixman_fixed_48_16_t) v.vector[0] << 16) / v.vector[2];
- y = ((pixman_fixed_48_16_t) v.vector[1] << 16) / v.vector[2];
- t = ((a * x + b * y) >> 16) + off;
- }
-
- color = _pixman_gradient_walker_pixel( &walker, t );
- while (buffer < end)
- *(buffer++) = color;
- }
- else
- {
- while (buffer < end)
- {
- if (!mask || *mask++ & maskBits)
- {
- if (v.vector[2] == 0) {
- t = 0;
- } else {
- pixman_fixed_48_16_t x, y;
- x = ((pixman_fixed_48_16_t)v.vector[0] << 16) / v.vector[2];
- y = ((pixman_fixed_48_16_t)v.vector[1] << 16) / v.vector[2];
- t = ((a*x + b*y) >> 16) + off;
- }
- *(buffer) = _pixman_gradient_walker_pixel (&walker, t);
- }
- ++buffer;
- v.vector[0] += unit.vector[0];
- v.vector[1] += unit.vector[1];
- v.vector[2] += unit.vector[2];
- }
- }
- }
+ assert (0);
} else {
/*
projects / platform / upstream / pixman.git / commitdiff