Reindent and reformat pixman-conical-gradient.c
authorSøren Sandmann Pedersen <sandmann@redhat.com>
Sun, 12 Jul 2009 22:55:45 +0000 (18:55 -0400)
committerSøren Sandmann Pedersen <sandmann@redhat.com>
Mon, 13 Jul 2009 23:55:33 +0000 (19:55 -0400)
pixman/pixman-conical-gradient.c

index 8e7d1c5..6a4e31e 100644 (file)
 #include "pixman-private.h"
 
 static void
-conical_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)
+conical_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)
 {
     source_image_t *source = (source_image_t *)image;
     gradient_t *gradient = (gradient_t *)source;
     conical_gradient_t *conical = (conical_gradient_t *)image;
     uint32_t       *end = buffer + width;
-    pixman_gradient_walker_t  walker;
+    pixman_gradient_walker_t walker;
     pixman_bool_t affine = TRUE;
     double cx = 1.;
     double cy = 0.;
@@ -45,73 +49,92 @@ conical_gradient_get_scanline_32 (pixman_image_t *image, int x, int y,
     double rx = x + 0.5;
     double ry = y + 0.5;
     double rz = 1.;
-    double a = conical->angle/(180.*65536);
+    double a = conical->angle / (180. * 65536);
 
     _pixman_gradient_walker_init (&walker, gradient, source->common.repeat);
-    
-    if (source->common.transform) {
+
+    if (source->common.transform)
+    {
        pixman_vector_t v;
+
        /* 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 (!pixman_transform_point_3d (source->common.transform, &v))
            return;
+
+       cx = source->common.transform->matrix[0][0] / 65536.;
+       cy = source->common.transform->matrix[1][0] / 65536.;
+       cz = source->common.transform->matrix[2][0] / 65536.;
        
-       cx = source->common.transform->matrix[0][0]/65536.;
-       cy = source->common.transform->matrix[1][0]/65536.;
-       cz = source->common.transform->matrix[2][0]/65536.;
-       rx = v.vector[0]/65536.;
-       ry = v.vector[1]/65536.;
-       rz = v.vector[2]/65536.;
-       affine = source->common.transform->matrix[2][0] == 0 && v.vector[2] == pixman_fixed_1;
-    }
-    
-    if (affine) {
-       rx -= conical->center.x/65536.;
-       ry -= conical->center.y/65536.;
+       rx = v.vector[0] / 65536.;
+       ry = v.vector[1] / 65536.;
+       rz = v.vector[2] / 65536.;
        
-       while (buffer < end) {
+       affine =
+           source->common.transform->matrix[2][0] == 0 &&
+           v.vector[2] == pixman_fixed_1;
+    }
+
+    if (affine)
+    {
+       rx -= conical->center.x / 65536.;
+       ry -= conical->center.y / 65536.;
+
+       while (buffer < end)
+       {
            double angle;
-           
+
            if (!mask || *mask++ & mask_bits)
            {
-               pixman_fixed_48_16_t   t;
-               
-               angle = atan2(ry, rx) + a;
-               t     = (pixman_fixed_48_16_t) (angle * (65536. / (2*M_PI)));
-               
-               *(buffer) = _pixman_gradient_walker_pixel (&walker, t);
+               pixman_fixed_48_16_t t;
+
+               angle = atan2 (ry, rx) + a;
+               t     = (pixman_fixed_48_16_t) (angle * (65536. / (2 * M_PI)));
+
+               *buffer = _pixman_gradient_walker_pixel (&walker, t);
            }
-           
+
            ++buffer;
+           
            rx += cx;
            ry += cy;
        }
-    } else {
-       while (buffer < end) {
+    }
+    else
+    {
+       while (buffer < end)
+       {
            double x, y;
            double angle;
-           
+
            if (!mask || *mask++ & mask_bits)
            {
-               pixman_fixed_48_16_t  t;
-               
-               if (rz != 0) {
-                   x = rx/rz;
-                   y = ry/rz;
-               } else {
+               pixman_fixed_48_16_t t;
+
+               if (rz != 0)
+               {
+                   x = rx / rz;
+                   y = ry / rz;
+               }
+               else
+               {
                    x = y = 0.;
                }
-               x -= conical->center.x/65536.;
-               y -= conical->center.y/65536.;
-               angle = atan2(y, x) + a;
-               t     = (pixman_fixed_48_16_t) (angle * (65536. / (2*M_PI)));
+
+               x -= conical->center.x / 65536.;
+               y -= conical->center.y / 65536.;
                
-               *(buffer) = _pixman_gradient_walker_pixel (&walker, t);
+               angle = atan2 (y, x) + a;
+               t     = (pixman_fixed_48_16_t) (angle * (65536. / (2 * M_PI)));
+
+               *buffer = _pixman_gradient_walker_pixel (&walker, t);
            }
-           
+
            ++buffer;
+           
            rx += cx;
            ry += cy;
            rz += cz;
@@ -127,32 +150,33 @@ conical_gradient_property_changed (pixman_image_t *image)
 }
 
 PIXMAN_EXPORT pixman_image_t *
-pixman_image_create_conical_gradient (pixman_point_fixed_t         *center,
-                                     pixman_fixed_t                angle,
-                                     const pixman_gradient_stop_t *stops,
-                                     int                           n_stops)
+pixman_image_create_conical_gradient (pixman_point_fixed_t *        center,
+                                      pixman_fixed_t                angle,
+                                      const pixman_gradient_stop_t *stops,
+                                      int                           n_stops)
 {
-    pixman_image_t *image = _pixman_image_allocate();
+    pixman_image_t *image = _pixman_image_allocate ();
     conical_gradient_t *conical;
-    
+
     if (!image)
        return NULL;
-    
+
     conical = &image->conical;
-    
+
     if (!_pixman_init_gradient (&conical->common, stops, n_stops))
     {
        free (image);
        return NULL;
     }
-    
+
     image->type = CONICAL;
     conical->center = *center;
     conical->angle = angle;
-    
+
     image->common.property_changed = conical_gradient_property_changed;
-    
+
     conical_gradient_property_changed (image);
-    
+
     return image;
 }
+