From: Søren Sandmann Pedersen Date: Sun, 12 Jul 2009 23:19:13 +0000 (-0400) Subject: Reindent and reformat pixman-linear-gradient.c X-Git-Tag: pixman-0.15.16~16 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=19397bc732b30a861416220974edca6404d2890b;p=platform%2Fupstream%2Fpixman.git Reindent and reformat pixman-linear-gradient.c --- diff --git a/pixman/pixman-linear-gradient.c b/pixman/pixman-linear-gradient.c index 54330e7..8c4a8ff 100644 --- a/pixman/pixman-linear-gradient.c +++ b/pixman/pixman-linear-gradient.c @@ -30,23 +30,25 @@ static source_pict_class_t linear_gradient_classify (pixman_image_t *image, - int x, - int y, - int width, - int height) + int x, + int y, + int width, + int height) { linear_gradient_t *linear = (linear_gradient_t *)image; - pixman_vector_t v; + pixman_vector_t v; pixman_fixed_32_32_t l; pixman_fixed_48_16_t dx, dy, a, b, off; pixman_fixed_48_16_t factors[4]; - int i; - + int i; + image->source.class = SOURCE_IMAGE_CLASS_UNKNOWN; - + dx = linear->p2.x - linear->p1.x; dy = linear->p2.y - linear->p1.y; + l = dx * dx + dy * dy; + if (l) { a = (dx << 32) / l; @@ -56,40 +58,45 @@ linear_gradient_classify (pixman_image_t *image, { a = b = 0; } - + off = (-a * linear->p1.x - -b * linear->p1.y) >> 16; - + -b * linear->p1.y) >> 16; + for (i = 0; i < 3; i++) { v.vector[0] = pixman_int_to_fixed ((i % 2) * (width - 1) + x); v.vector[1] = pixman_int_to_fixed ((i / 2) * (height - 1) + y); v.vector[2] = pixman_fixed_1; - + if (image->common.transform) { if (!pixman_transform_point_3d (image->common.transform, &v)) { image->source.class = SOURCE_IMAGE_CLASS_UNKNOWN; - + return image->source.class; } } - + factors[i] = ((a * v.vector[0] + b * v.vector[1]) >> 16) + off; } - + if (factors[2] == factors[0]) 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, - const uint32_t *mask, uint32_t mask_bits) +linear_gradient_get_scanline_32 (pixman_image_t *image, + int x, + int y, + int width, + uint32_t * buffer, + const uint32_t *mask, + uint32_t mask_bits) { pixman_vector_t v, unit; pixman_fixed_32_32_t l; @@ -97,83 +104,102 @@ linear_gradient_get_scanline_32 (pixman_image_t *image, int x, int y, int width, 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; - pixman_gradient_walker_t walker; - + uint32_t *end = buffer + width; + pixman_gradient_walker_t 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[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 (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 { + } + 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) { + + 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; + off = (-a * linear->p1.x + -b * linear->p1.y) >> 16; } - if (l == 0 || (unit.vector[2] == 0 && v.vector[2] == pixman_fixed_1)) { + + 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) { + if (l == 0) + { t = 0; inc = 0; - } else { - t = ((a*v.vector[0] + b*v.vector[1]) >> 16) + off; + } + 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 ); + + color = _pixman_gradient_walker_pixel (&walker, t); while (buffer < end) - *(buffer++) = color; + *buffer++ = color; } else { - if (!mask) { + if (!mask) + { while (buffer < end) { - *(buffer) = _pixman_gradient_walker_pixel (&walker, t); - buffer += 1; - t += inc; + *buffer++ = _pixman_gradient_walker_pixel (&walker, t); + + t += inc; } - } else { - while (buffer < end) { + } + else + { + while (buffer < end) + { if (*mask++ & mask_bits) - { - *(buffer) = _pixman_gradient_walker_pixel (&walker, t); - } - buffer += 1; - t += inc; + *buffer = _pixman_gradient_walker_pixel (&walker, t); + + buffer++; + t += inc; } } } } - else /* projective transformation */ + 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; @@ -181,15 +207,15 @@ linear_gradient_get_scanline_32 (pixman_image_t *image, int x, int y, int width, 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 ); + + color = _pixman_gradient_walker_pixel (&walker, t); while (buffer < end) - *(buffer++) = color; + *buffer++ = color; } else { @@ -197,17 +223,23 @@ linear_gradient_get_scanline_32 (pixman_image_t *image, int x, int y, int width, { if (!mask || *mask++ & mask_bits) { - if (v.vector[2] == 0) { + if (v.vector[2] == 0) + { t = 0; - } else { + } + 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; + t = ((a * x + b * y) >> 16) + off; } - *(buffer) = _pixman_gradient_walker_pixel (&walker, t); + + *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]; @@ -224,38 +256,39 @@ linear_gradient_property_changed (pixman_image_t *image) } PIXMAN_EXPORT pixman_image_t * -pixman_image_create_linear_gradient (pixman_point_fixed_t *p1, - pixman_point_fixed_t *p2, - const pixman_gradient_stop_t *stops, - int n_stops) +pixman_image_create_linear_gradient (pixman_point_fixed_t * p1, + pixman_point_fixed_t * p2, + const pixman_gradient_stop_t *stops, + int n_stops) { pixman_image_t *image; linear_gradient_t *linear; - + return_val_if_fail (n_stops >= 2, NULL); - - image = _pixman_image_allocate(); - + + image = _pixman_image_allocate (); + if (!image) return NULL; - + linear = &image->linear; - + if (!_pixman_init_gradient (&linear->common, stops, n_stops)) { free (image); return NULL; } - + linear->p1 = *p1; linear->p2 = *p2; - + image->type = LINEAR; 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; } +