Use embedded superclass struct instead of user pointer in devices.

1 files changed, 54 insertions, 54 deletions

diff --git a/source/fitz/bbox-device.c b/source/fitz/bbox-device.c
index b11a78a7..2c639499 100644
--- a/source/fitz/bbox-device.c
+++ b/source/fitz/bbox-device.c
@@ -2,32 +2,34 @@
 
 #define STACK_SIZE 96
 
-typedef struct fz_bbox_data_s
+typedef struct fz_bbox_device_s
 {
+	fz_device super;
+
 	fz_rect *result;
 	int top;
 	fz_rect stack[STACK_SIZE];
 	/* mask content and tiles are ignored */
 	int ignore;
-} fz_bbox_data;
+} fz_bbox_device;
 
 static void
 fz_bbox_add_rect(fz_context *ctx, fz_device *dev, const fz_rect *rect, int clip)
 {
-	fz_bbox_data *data = dev->user;
+	fz_bbox_device *bdev = (fz_bbox_device*)dev;
 	fz_rect r = *rect;
 
-	if (0 < data->top && data->top <= STACK_SIZE)
+	if (0 < bdev->top && bdev->top <= STACK_SIZE)
 	{
-		fz_intersect_rect(&r, &data->stack[data->top-1]);
+		fz_intersect_rect(&r, &bdev->stack[bdev->top-1]);
 	}
-	if (!clip && data->top <= STACK_SIZE && !data->ignore)
+	if (!clip && bdev->top <= STACK_SIZE && !bdev->ignore)
 	{
-		fz_union_rect(data->result, &r);
+		fz_union_rect(bdev->result, &r);
 	}
-	if (clip && ++data->top <= STACK_SIZE)
+	if (clip && ++bdev->top <= STACK_SIZE)
 	{
-		data->stack[data->top-1] = r;
+		bdev->stack[bdev->top-1] = r;
 	}
 }
 
@@ -126,9 +128,9 @@ fz_bbox_clip_image_mask(fz_context *ctx, fz_device *dev, fz_image *image, const
 static void
 fz_bbox_pop_clip(fz_context *ctx, fz_device *dev)
 {
-	fz_bbox_data *data = dev->user;
-	if (data->top > 0)
-		data->top--;
+	fz_bbox_device *bdev = (fz_bbox_device*)dev;
+	if (bdev->top > 0)
+		bdev->top--;
 	else
 		fz_warn(ctx, "unexpected pop clip");
 }
@@ -136,17 +138,17 @@ fz_bbox_pop_clip(fz_context *ctx, fz_device *dev)
 static void
 fz_bbox_begin_mask(fz_context *ctx, fz_device *dev, const fz_rect *rect, int luminosity, fz_colorspace *colorspace, float *color)
 {
-	fz_bbox_data *data = dev->user;
+	fz_bbox_device *bdev = (fz_bbox_device*)dev;
 	fz_bbox_add_rect(ctx, dev, rect, 1);
-	data->ignore++;
+	bdev->ignore++;
 }
 
 static void
 fz_bbox_end_mask(fz_context *ctx, fz_device *dev)
 {
-	fz_bbox_data *data = dev->user;
-	assert(data->ignore > 0);
-	data->ignore--;
+	fz_bbox_device *bdev = (fz_bbox_device*)dev;
+	assert(bdev->ignore > 0);
+	bdev->ignore--;
 }
 
 static void
@@ -164,68 +166,66 @@ fz_bbox_end_group(fz_context *ctx, fz_device *dev)
 static int
 fz_bbox_begin_tile(fz_context *ctx, fz_device *dev, const fz_rect *area, const fz_rect *view, float xstep, float ystep, const fz_matrix *ctm, int id)
 {
-	fz_bbox_data *data = dev->user;
+	fz_bbox_device *bdev = (fz_bbox_device*)dev;
 	fz_rect r = *area;
 	fz_bbox_add_rect(ctx, dev, fz_transform_rect(&r, ctm), 0);
-	data->ignore++;
+	bdev->ignore++;
 	return 0;
 }
 
 static void
 fz_bbox_end_tile(fz_context *ctx, fz_device *dev)
 {
-	fz_bbox_data *data = dev->user;
-	assert(data->ignore > 0);
-	data->ignore--;
+	fz_bbox_device *bdev = (fz_bbox_device*)dev;
+	assert(bdev->ignore > 0);
+	bdev->ignore--;
 }
 
 static void
-fz_bbox_drop_user(fz_context *ctx, fz_device *dev)
+fz_bbox_drop_imp(fz_context *ctx, fz_device *dev)
 {
-	fz_bbox_data *data = dev->user;
-	if (data->top > 0)
-		fz_warn(ctx, "items left on stack in bbox device: %d", data->top);
-	fz_free(ctx, dev->user);
+	fz_bbox_device *bdev = (fz_bbox_device*)dev;
+	if (bdev->top > 0)
+		fz_warn(ctx, "items left on stack in bbox device: %d", bdev->top);
 }
 
 fz_device *
 fz_new_bbox_device(fz_context *ctx, fz_rect *result)
 {
-	fz_device *dev;
+	fz_bbox_device *dev = fz_new_device(ctx, sizeof *dev);
+
+	dev->super.drop_imp = fz_bbox_drop_imp;
 
-	fz_bbox_data *user = fz_malloc_struct(ctx, fz_bbox_data);
-	user->result = result;
-	user->top = 0;
-	user->ignore = 0;
-	dev = fz_new_device(ctx, user);
-	dev->drop_user = fz_bbox_drop_user;
+	dev->super.fill_path = fz_bbox_fill_path;
+	dev->super.stroke_path = fz_bbox_stroke_path;
+	dev->super.clip_path = fz_bbox_clip_path;
+	dev->super.clip_stroke_path = fz_bbox_clip_stroke_path;
 
-	dev->fill_path = fz_bbox_fill_path;
-	dev->stroke_path = fz_bbox_stroke_path;
-	dev->clip_path = fz_bbox_clip_path;
-	dev->clip_stroke_path = fz_bbox_clip_stroke_path;
+	dev->super.fill_text = fz_bbox_fill_text;
+	dev->super.stroke_text = fz_bbox_stroke_text;
+	dev->super.clip_text = fz_bbox_clip_text;
+	dev->super.clip_stroke_text = fz_bbox_clip_stroke_text;
 
-	dev->fill_text = fz_bbox_fill_text;
-	dev->stroke_text = fz_bbox_stroke_text;
-	dev->clip_text = fz_bbox_clip_text;
-	dev->clip_stroke_text = fz_bbox_clip_stroke_text;
+	dev->super.fill_shade = fz_bbox_fill_shade;
+	dev->super.fill_image = fz_bbox_fill_image;
+	dev->super.fill_image_mask = fz_bbox_fill_image_mask;
+	dev->super.clip_image_mask = fz_bbox_clip_image_mask;
 
-	dev->fill_shade = fz_bbox_fill_shade;
-	dev->fill_image = fz_bbox_fill_image;
-	dev->fill_image_mask = fz_bbox_fill_image_mask;
-	dev->clip_image_mask = fz_bbox_clip_image_mask;
+	dev->super.pop_clip = fz_bbox_pop_clip;
 
-	dev->pop_clip = fz_bbox_pop_clip;
+	dev->super.begin_mask = fz_bbox_begin_mask;
+	dev->super.end_mask = fz_bbox_end_mask;
+	dev->super.begin_group = fz_bbox_begin_group;
+	dev->super.end_group = fz_bbox_end_group;
 
-	dev->begin_mask = fz_bbox_begin_mask;
-	dev->end_mask = fz_bbox_end_mask;
-	dev->begin_group = fz_bbox_begin_group;
-	dev->end_group = fz_bbox_end_group;
+	dev->super.begin_tile = fz_bbox_begin_tile;
+	dev->super.end_tile = fz_bbox_end_tile;
 
-	dev->begin_tile = fz_bbox_begin_tile;
-	dev->end_tile = fz_bbox_end_tile;
+	dev->result = result;
+	dev->top = 0;
+	dev->ignore = 0;
 
 	*result = fz_empty_rect;
 
-	return dev;
+	return (fz_device*)dev;
 }