WebSVN – Kolibri OS – Blame – /drivers/include/drm/drm_plane_helper.h

Rev	Author	Line No.	Line
5056	serge	1	/*
		2	* Copyright (C) 2011-2013 Intel Corporation
		3	*
		4	* Permission is hereby granted, free of charge, to any person obtaining a
		5	* copy of this software and associated documentation files (the "Software"),
		6	* to deal in the Software without restriction, including without limitation
		7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
		8	* and/or sell copies of the Software, and to permit persons to whom the
		9	* Software is furnished to do so, subject to the following conditions:
		10	*
		11	* The above copyright notice and this permission notice (including the next
		12	* paragraph) shall be included in all copies or substantial portions of the
		13	* Software.
		14	*
		15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
		16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
		17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
		18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
		19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
		20	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
		21	* SOFTWARE.
		22	*/
		23
		24	#ifndef DRM_PLANE_HELPER_H
		25	#define DRM_PLANE_HELPER_H
		26
		27	#include
5270	serge	28	#include
5056	serge	29
		30	/*
		31	* Drivers that don't allow primary plane scaling may pass this macro in place
		32	* of the min/max scale parameters of the update checker function.
		33	*
		34	* Due to src being in 16.16 fixed point and dest being in integer pixels,
		35	* 1<<16 represents no scaling.
		36	*/
		37	#define DRM_PLANE_HELPER_NO_SCALING (1<<16)
		38
		39	/**
		40	* DOC: plane helpers
		41	*
		42	* Helper functions to assist with creation and handling of CRTC primary
		43	* planes.
		44	*/
		45
5270	serge	46	extern int drm_crtc_init(struct drm_device *dev,
		47	struct drm_crtc *crtc,
		48	const struct drm_crtc_funcs *funcs);
		49
		50	/**
		51	* drm_plane_helper_funcs - helper operations for CRTCs
		52	* @prepare_fb: prepare a framebuffer for use by the plane
		53	* @cleanup_fb: cleanup a framebuffer when it's no longer used by the plane
		54	* @atomic_check: check that a given atomic state is valid and can be applied
		55	* @atomic_update: apply an atomic state to the plane
		56	*
		57	* The helper operations are called by the mid-layer CRTC helper.
		58	*/
		59	struct drm_plane_helper_funcs {
		60	int (prepare_fb)(struct drm_plane plane,
		61	struct drm_framebuffer *fb);
		62	void (cleanup_fb)(struct drm_plane plane,
		63	struct drm_framebuffer *fb);
		64
		65	int (atomic_check)(struct drm_plane plane,
		66	struct drm_plane_state *state);
		67	void (atomic_update)(struct drm_plane plane,
		68	struct drm_plane_state *old_state);
		69	};
		70
		71	static inline void drm_plane_helper_add(struct drm_plane *plane,
		72	const struct drm_plane_helper_funcs *funcs)
		73	{
		74	plane->helper_private = (void *)funcs;
		75	}
		76
5056	serge	77	extern int drm_plane_helper_check_update(struct drm_plane *plane,
		78	struct drm_crtc *crtc,
		79	struct drm_framebuffer *fb,
		80	struct drm_rect *src,
		81	struct drm_rect *dest,
		82	const struct drm_rect *clip,
		83	int min_scale,
		84	int max_scale,
		85	bool can_position,
		86	bool can_update_disabled,
		87	bool *visible);
		88	extern int drm_primary_helper_update(struct drm_plane *plane,
		89	struct drm_crtc *crtc,
		90	struct drm_framebuffer *fb,
		91	int crtc_x, int crtc_y,
		92	unsigned int crtc_w, unsigned int crtc_h,
		93	uint32_t src_x, uint32_t src_y,
		94	uint32_t src_w, uint32_t src_h);
		95	extern int drm_primary_helper_disable(struct drm_plane *plane);
		96	extern void drm_primary_helper_destroy(struct drm_plane *plane);
		97	extern const struct drm_plane_funcs drm_primary_helper_funcs;
		98	extern struct drm_plane drm_primary_helper_create_plane(struct drm_device dev,
		99	const uint32_t *formats,
		100	int num_formats);
		101
		102
5270	serge	103	int drm_plane_helper_update(struct drm_plane plane, struct drm_crtc crtc,
		104	struct drm_framebuffer *fb,
		105	int crtc_x, int crtc_y,
		106	unsigned int crtc_w, unsigned int crtc_h,
		107	uint32_t src_x, uint32_t src_y,
		108	uint32_t src_w, uint32_t src_h);
		109	int drm_plane_helper_disable(struct drm_plane *plane);
		110
		111	/* For use by drm_crtc_helper.c */
		112	int drm_plane_helper_commit(struct drm_plane *plane,
		113	struct drm_plane_state *plane_state,
		114	struct drm_framebuffer *old_fb);
5056	serge	115	#endif

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(root)/drivers/include/drm/drm_plane_helper.h – Rev 5270