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Diffstat (limited to 'src/gallium/state_trackers/vega/bezier.h')
-rw-r--r-- | src/gallium/state_trackers/vega/bezier.h | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/src/gallium/state_trackers/vega/bezier.h b/src/gallium/state_trackers/vega/bezier.h deleted file mode 100644 index e06666051ca..00000000000 --- a/src/gallium/state_trackers/vega/bezier.h +++ /dev/null @@ -1,81 +0,0 @@ -/************************************************************************** - * - * Copyright 2009 VMware, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - -#ifndef BEZIER_H -#define BEZIER_H - -struct polygon; -struct matrix; - -struct bezier { - float x1, y1; - float x2, y2; - float x3, y3; - float x4, y4; -}; - - -#define BEZIER_DEFAULT_ERROR 0.01 - -/* kappa as being l of a circle with r = 1, we can emulate any - * circle of radius r by using the formula - * l = r . kappa - * More at: - * http://www.whizkidtech.redprince.net/bezier/circle/ */ -#define KAPPA 0.5522847498 - -void bezier_init(struct bezier *bez, - float x1, float y1, - float x2, float y2, - float x3, float y3, - float x4, float y4); - -struct polygon *bezier_to_polygon(struct bezier *bez); -void bezier_add_to_polygon(const struct bezier *bez, - struct polygon *poly); -float bezier_length(struct bezier *bez, float error); -void bezier_transform(struct bezier *bez, - struct matrix *mat); - -int bezier_translate_by_normal(struct bezier *b, - struct bezier *curves, - int max_curves, - float normal_len, - float threshold); -void bezier_bounds(const struct bezier *bez, - float *bounds/*x/y/width/height*/); -void bezier_exact_bounds(const struct bezier *bez, - float *bounds/*x/y/width/height*/); - -void bezier_start_tangent(const struct bezier *bez, - float *tangent); - -void bezier_point_at_length(struct bezier *bez, float length, - float *point, float *normal); -void bezier_point_at_t(struct bezier *bez, float t, - float *point, float *normal); - -#endif |