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| 5056 | serge | 1 | /* |
| 2 | * Copyright (C) 2011-2013 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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| 21 | * SOFTWARE. |
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| 22 | */ |
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| 23 | |||
| 24 | #ifndef DRM_PLANE_HELPER_H |
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| 25 | #define DRM_PLANE_HELPER_H |
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| 26 | |||
| 27 | #include |
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| 28 | |||
| 29 | /* |
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| 30 | * Drivers that don't allow primary plane scaling may pass this macro in place |
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| 31 | * of the min/max scale parameters of the update checker function. |
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| 32 | * |
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| 33 | * Due to src being in 16.16 fixed point and dest being in integer pixels, |
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| 34 | * 1<<16 represents no scaling. |
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| 35 | */ |
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| 36 | #define DRM_PLANE_HELPER_NO_SCALING (1<<16) |
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| 37 | |||
| 38 | /** |
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| 39 | * DOC: plane helpers |
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| 40 | * |
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| 41 | * Helper functions to assist with creation and handling of CRTC primary |
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| 42 | * planes. |
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| 43 | */ |
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| 44 | |||
| 45 | extern int drm_plane_helper_check_update(struct drm_plane *plane, |
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| 46 | struct drm_crtc *crtc, |
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| 47 | struct drm_framebuffer *fb, |
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| 48 | struct drm_rect *src, |
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| 49 | struct drm_rect *dest, |
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| 50 | const struct drm_rect *clip, |
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| 51 | int min_scale, |
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| 52 | int max_scale, |
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| 53 | bool can_position, |
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| 54 | bool can_update_disabled, |
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| 55 | bool *visible); |
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| 56 | extern int drm_primary_helper_update(struct drm_plane *plane, |
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| 57 | struct drm_crtc *crtc, |
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| 58 | struct drm_framebuffer *fb, |
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| 59 | int crtc_x, int crtc_y, |
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| 60 | unsigned int crtc_w, unsigned int crtc_h, |
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| 61 | uint32_t src_x, uint32_t src_y, |
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| 62 | uint32_t src_w, uint32_t src_h); |
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| 63 | extern int drm_primary_helper_disable(struct drm_plane *plane); |
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| 64 | extern void drm_primary_helper_destroy(struct drm_plane *plane); |
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| 65 | extern const struct drm_plane_funcs drm_primary_helper_funcs; |
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| 66 | extern struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev, |
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| 67 | const uint32_t *formats, |
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| 68 | int num_formats); |
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| 69 | |||
| 70 | |||
| 71 | #endif |