diff options
Diffstat (limited to 'drivers/video/b2r2/b2r2_utils.h')
-rw-r--r-- | drivers/video/b2r2/b2r2_utils.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/video/b2r2/b2r2_utils.h b/drivers/video/b2r2/b2r2_utils.h new file mode 100644 index 00000000000..081ac1f4848 --- /dev/null +++ b/drivers/video/b2r2/b2r2_utils.h @@ -0,0 +1,89 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * ST-Ericsson B2R2 utils + * + * Author: Johan Mossberg <johan.xx.mossberg@stericsson.com> for ST-Ericsson + * + * License terms: GNU General Public License (GPL), version 2. + */ + +#ifndef _LINUX_DRIVERS_VIDEO_B2R2_UTILS_H_ +#define _LINUX_DRIVERS_VIDEO_B2R2_UTILS_H_ + +#include <video/b2r2_blt.h> + +#include "b2r2_internal.h" + +extern const s32 b2r2_s32_max; + +int calculate_scale_factor(struct device *dev, + u32 from, u32 to, u16 *sf_out); +void b2r2_get_img_bounding_rect(struct b2r2_blt_img *img, + struct b2r2_blt_rect *bounding_rect); + +bool b2r2_is_zero_area_rect(struct b2r2_blt_rect *rect); +bool b2r2_is_rect_inside_rect(struct b2r2_blt_rect *rect1, + struct b2r2_blt_rect *rect2); +bool b2r2_is_rect_gte_rect(struct b2r2_blt_rect *rect1, + struct b2r2_blt_rect *rect2); +void b2r2_intersect_rects(struct b2r2_blt_rect *rect1, + struct b2r2_blt_rect *rect2, + struct b2r2_blt_rect *intersection); +void b2r2_trim_rects(struct device *dev, + const struct b2r2_blt_req *req, + struct b2r2_blt_rect *new_bg_rect, + struct b2r2_blt_rect *new_dst_rect, + struct b2r2_blt_rect *new_src_rect); + +int b2r2_get_fmt_bpp(struct device *dev, enum b2r2_blt_fmt fmt); +int b2r2_get_fmt_y_bpp(struct device *dev, enum b2r2_blt_fmt fmt); + +bool b2r2_is_single_plane_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_independent_pixel_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_ycbcri_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_ycbcrsp_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_ycbcrp_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_ycbcr420_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_ycbcr422_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_ycbcr444_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_mb_fmt(enum b2r2_blt_fmt fmt); + +/* + * Rounds up if an invalid width causes the pitch to be non byte aligned. + */ +u32 b2r2_calc_pitch_from_width(struct device *dev, + s32 width, enum b2r2_blt_fmt fmt); +u32 b2r2_get_img_pitch(struct device *dev, + struct b2r2_blt_img *img); +s32 b2r2_get_img_size(struct device *dev, + struct b2r2_blt_img *img); + +s32 b2r2_div_round_up(s32 dividend, s32 divisor); +bool b2r2_is_aligned(s32 value, s32 alignment); +s32 b2r2_align_up(s32 value, s32 alignment); + +enum b2r2_ty b2r2_get_alpha_range(enum b2r2_blt_fmt fmt); +u8 b2r2_get_alpha(enum b2r2_blt_fmt fmt, u32 pixel); +u32 b2r2_set_alpha(enum b2r2_blt_fmt fmt, u8 alpha, u32 color); +bool b2r2_fmt_has_alpha(enum b2r2_blt_fmt fmt); +bool b2r2_is_rgb_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_bgr_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_yuv_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_yvu_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_yuv420_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_yuv422_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_yvu420_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_yvu422_fmt(enum b2r2_blt_fmt fmt); +bool b2r2_is_yuv444_fmt(enum b2r2_blt_fmt fmt); +int b2r2_fmt_byte_pitch(enum b2r2_blt_fmt fmt, u32 width); +enum b2r2_native_fmt b2r2_to_native_fmt(enum b2r2_blt_fmt fmt); +u32 b2r2_to_RGB888(u32 color, const enum b2r2_blt_fmt fmt); +enum b2r2_fmt_type b2r2_get_fmt_type(enum b2r2_blt_fmt fmt); +#ifdef CONFIG_DEBUG_FS +int sprintf_req(struct b2r2_blt_request *request, char *buf, int size); +#endif +void b2r2_recalculate_rects(struct device *dev, + struct b2r2_blt_req *req); + +#endif |