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/*
* 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>
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_destroy(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_ */
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