diff options
Diffstat (limited to 'gralloc_drm.h')
-rw-r--r-- | gralloc_drm.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/gralloc_drm.h b/gralloc_drm.h new file mode 100644 index 0000000..c32aaf6 --- /dev/null +++ b/gralloc_drm.h @@ -0,0 +1,150 @@ +/* + * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com> + * 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 <hardware/gralloc.h> +#include <system/graphics.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define ALIGN(val, align) (((val) + (align) - 1) & ~((align) - 1)) + +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_YCbCr_422_I: + bpp = 2; + break; + /* planar; only Y is considered */ + case HAL_PIXEL_FORMAT_YV12: + case HAL_PIXEL_FORMAT_DRM_NV12: + 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_DRM_NV12: + 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 = ALIGN(*width, align_w); + *height = ALIGN(*height, align_h); + + 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_get_gem_handle(buffer_handle_t handle); +void gralloc_drm_resolve_format(buffer_handle_t _handle, uint32_t *pitches, uint32_t *offsets, uint32_t *handles); +unsigned int planes_for_format(struct gralloc_drm_t *drm, int hal_format); + +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); + +int gralloc_drm_reserve_plane(struct gralloc_drm_t *drm, + buffer_handle_t handle, uint32_t id, + uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, uint32_t dst_h, + uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h); +void gralloc_drm_disable_planes(struct gralloc_drm_t *mod); +int gralloc_drm_set_plane_handle(struct gralloc_drm_t *drm, + uint32_t id, buffer_handle_t handle); + +#ifdef __cplusplus +} +#endif +#endif /* _GRALLOC_DRM_H_ */ |