/* * Copyright (C) 2010-2011 Chia-I Wu * Copyright (C) 2010-2011 LunarG Inc. * * 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, sublicense, * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS 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 _GRALLOC_DRM_H_ #define _GRALLOC_DRM_H_ #include struct gralloc_drm_t; struct gralloc_drm_bo_t; struct gralloc_drm_t *gralloc_drm_create(void); void gralloc_drm_destroy(struct gralloc_drm_t *drm); int gralloc_drm_get_fd(struct gralloc_drm_t *drm); int gralloc_drm_get_magic(struct gralloc_drm_t *drm, int32_t *magic); int gralloc_drm_auth_magic(struct gralloc_drm_t *drm, int32_t magic); int gralloc_drm_set_master(struct gralloc_drm_t *drm); void gralloc_drm_drop_master(struct gralloc_drm_t *drm); int gralloc_drm_init_kms(struct gralloc_drm_t *drm); void gralloc_drm_fini_kms(struct gralloc_drm_t *drm); int gralloc_drm_is_kms_initialized(struct gralloc_drm_t *drm); void gralloc_drm_get_kms_info(struct gralloc_drm_t *drm, struct framebuffer_device_t *fb); int gralloc_drm_is_kms_pipelined(struct gralloc_drm_t *drm); static inline int gralloc_drm_get_bpp(int format) { int bpp; switch (format) { case HAL_PIXEL_FORMAT_RGBA_8888: case HAL_PIXEL_FORMAT_RGBX_8888: case HAL_PIXEL_FORMAT_BGRA_8888: bpp = 4; break; case HAL_PIXEL_FORMAT_RGB_888: bpp = 3; break; case HAL_PIXEL_FORMAT_RGB_565: case HAL_PIXEL_FORMAT_RGBA_5551: case HAL_PIXEL_FORMAT_RGBA_4444: case HAL_PIXEL_FORMAT_YCbCr_422_I: bpp = 2; break; /* planar; only Y is considered */ case HAL_PIXEL_FORMAT_YV12: case HAL_PIXEL_FORMAT_YCbCr_422_SP: case HAL_PIXEL_FORMAT_YCrCb_420_SP: bpp = 1; break; default: bpp = 0; break; } return bpp; } static inline void gralloc_drm_align_geometry(int format, int *width, int *height) { int align_w = 1, align_h = 1, extra_height_div = 0; switch (format) { case HAL_PIXEL_FORMAT_YV12: align_w = 32; align_h = 2; extra_height_div = 2; break; case HAL_PIXEL_FORMAT_YCbCr_422_SP: align_w = 2; extra_height_div = 1; break; case HAL_PIXEL_FORMAT_YCrCb_420_SP: align_w = 2; align_h = 2; extra_height_div = 2; break; case HAL_PIXEL_FORMAT_YCbCr_422_I: align_w = 2; break; } *width = (*width + align_w - 1) & ~(align_w - 1); *height = (*height + align_h - 1) & ~(align_h - 1); if (extra_height_div) *height += *height / extra_height_div; } int gralloc_drm_handle_register(buffer_handle_t handle, struct gralloc_drm_t *drm); int gralloc_drm_handle_unregister(buffer_handle_t handle); struct gralloc_drm_bo_t *gralloc_drm_bo_create(struct gralloc_drm_t *drm, int width, int height, int format, int usage); void gralloc_drm_bo_decref(struct gralloc_drm_bo_t *bo); struct gralloc_drm_bo_t *gralloc_drm_bo_from_handle(buffer_handle_t handle); buffer_handle_t gralloc_drm_bo_get_handle(struct gralloc_drm_bo_t *bo, int *stride); int gralloc_drm_bo_lock(struct gralloc_drm_bo_t *bo, int x, int y, int w, int h, int enable_write, void **addr); void gralloc_drm_bo_unlock(struct gralloc_drm_bo_t *bo); int gralloc_drm_bo_need_fb(const struct gralloc_drm_bo_t *bo); int gralloc_drm_bo_add_fb(struct gralloc_drm_bo_t *bo); void gralloc_drm_bo_rm_fb(struct gralloc_drm_bo_t *bo); int gralloc_drm_bo_post(struct gralloc_drm_bo_t *bo); #endif /* _GRALLOC_DRM_H_ */