Get rid of the classify methods

They are not used anymore, and the linear gradient is now doing the
optimization in a different way.

4 files changed, 11 insertions, 61 deletions

diff --git a/pixman/pixman-image.c b/pixman/pixman-image.c
index 1aa9de15..a72299b3 100644
--- a/pixman/pixman-image.c
+++ b/pixman/pixman-image.c
@@ -72,7 +72,6 @@ _pixman_image_allocate (void)
 	common->alpha_map = NULL;
 	common->component_alpha = FALSE;
 	common->ref_count = 1;
-	common->classify = NULL;
 	common->property_changed = NULL;
 	common->client_clip = FALSE;
 	common->destroy_func = NULL;
@@ -83,19 +82,6 @@ _pixman_image_allocate (void)
     return image;
 }
 
-source_image_class_t
-_pixman_image_classify (pixman_image_t *image,
-                        int             x,
-                        int             y,
-                        int             width,
-                        int             height)
-{
-    if (image->common.classify)
-	return image->common.classify (image, x, y, width, height);
-    else
-	return SOURCE_IMAGE_CLASS_UNKNOWN;
-}
-
 static void
 image_property_changed (pixman_image_t *image)
 {
diff --git a/pixman/pixman-linear-gradient.c b/pixman/pixman-linear-gradient.c
index 66d37ab9..07303fc0 100644
--- a/pixman/pixman-linear-gradient.c
+++ b/pixman/pixman-linear-gradient.c
@@ -31,21 +31,18 @@
 #include <stdlib.h>
 #include "pixman-private.h"
 
-static source_image_class_t
-linear_gradient_classify (pixman_image_t *image,
-                          int             x,
-                          int             y,
-                          int             width,
-                          int             height)
+static pixman_bool_t
+linear_gradient_is_horizontal (pixman_image_t *image,
+			       int             x,
+			       int             y,
+			       int             width,
+			       int             height)
 {
     linear_gradient_t *linear = (linear_gradient_t *)image;
     pixman_vector_t v;
     pixman_fixed_32_32_t l;
     pixman_fixed_48_16_t dx, dy;
     double inc;
-    source_image_class_t class;
-
-    class = SOURCE_IMAGE_CLASS_UNKNOWN;
 
     if (image->common.transform)
     {
@@ -54,7 +51,7 @@ linear_gradient_classify (pixman_image_t *image,
 	    image->common.transform->matrix[2][1] != 0 ||
 	    image->common.transform->matrix[2][2] == 0)
 	{
-	    return class;
+	    return FALSE;
 	}
 
 	v.vector[0] = image->common.transform->matrix[0][1];
@@ -74,7 +71,7 @@ linear_gradient_classify (pixman_image_t *image,
     l = dx * dx + dy * dy;
 
     if (l == 0)
-	return class;	
+	return FALSE;
 
     /*
      * compute how much the input of the gradient walked changes
@@ -86,9 +83,9 @@ linear_gradient_classify (pixman_image_t *image,
 
     /* check that casting to integer would result in 0 */
     if (-1 < inc && inc < 1)
-	class = SOURCE_IMAGE_CLASS_HORIZONTAL;
+	return TRUE;
 
-    return class;
+    return FALSE;
 }
 
 static uint32_t *
@@ -245,8 +242,7 @@ _pixman_linear_gradient_iter_init (pixman_image_t *image,
 				   uint8_t        *buffer,
 				   iter_flags_t    flags)
 {
-    if (linear_gradient_classify (image, x, y, width, height) ==
-	SOURCE_IMAGE_CLASS_HORIZONTAL)
+    if (linear_gradient_is_horizontal (image, x, y, width, height))
     {
 	if (flags & ITER_NARROW)
 	    linear_get_scanline_narrow (iter, NULL);
@@ -290,7 +286,6 @@ pixman_image_create_linear_gradient (pixman_point_fixed_t *        p1,
     linear->p2 = *p2;
 
     image->type = LINEAR;
-    image->common.classify = linear_gradient_classify;
 
     return image;
 }
diff --git a/pixman/pixman-private.h b/pixman/pixman-private.h
index d7c7a62e..c3321e15 100644
--- a/pixman/pixman-private.h
+++ b/pixman/pixman-private.h
@@ -60,17 +60,6 @@ typedef enum
     SOLID
 } image_type_t;
 
-typedef enum
-{
-    SOURCE_IMAGE_CLASS_UNKNOWN,
-    SOURCE_IMAGE_CLASS_HORIZONTAL,
-} source_image_class_t;
-
-typedef source_image_class_t (*classify_func_t) (pixman_image_t *image,
-						int             x,
-						int             y,
-						int             width,
-						int             height);
 typedef void (*property_changed_func_t) (pixman_image_t *image);
 
 struct image_common
@@ -95,7 +84,6 @@ struct image_common
     int                         alpha_origin_x;
     int                         alpha_origin_y;
     pixman_bool_t               component_alpha;
-    classify_func_t             classify;
     property_changed_func_t     property_changed;
 
     pixman_image_destroy_func_t destroy_func;
@@ -249,13 +237,6 @@ _pixman_conical_gradient_iter_init (pixman_image_t *image,
 				    int x, int y, int width, int height,
 				    uint8_t *buffer, iter_flags_t flags);
 
-source_image_class_t
-_pixman_image_classify (pixman_image_t *image,
-                        int             x,
-                        int             y,
-                        int             width,
-                        int             height);
-
 pixman_image_t *
 _pixman_image_allocate (void);
 
diff --git a/pixman/pixman-solid-fill.c b/pixman/pixman-solid-fill.c
index a431d744..67681f2c 100644
--- a/pixman/pixman-solid-fill.c
+++ b/pixman/pixman-solid-fill.c
@@ -26,16 +26,6 @@
 #endif
 #include "pixman-private.h"
 
-static source_image_class_t
-solid_fill_classify (pixman_image_t *image,
-                     int             x,
-                     int             y,
-                     int             width,
-                     int             height)
-{
-    return SOURCE_IMAGE_CLASS_HORIZONTAL;
-}
-
 void
 _pixman_solid_fill_iter_init (pixman_image_t *image,
 			      pixman_iter_t  *iter,
@@ -97,8 +87,6 @@ pixman_image_create_solid_fill (pixman_color_t *color)
     img->solid.color_32 = color_to_uint32 (color);
     img->solid.color_64 = color_to_uint64 (color);
 
-    img->common.classify = solid_fill_classify;
-
     return img;
 }