130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/*
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* Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
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* Copyright (C) 2010-2011 LunarG Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _GRALLOC_DRM_H_
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#define _GRALLOC_DRM_H_
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#include <hardware/gralloc.h>
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#include <system/graphics.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ALIGN(val, align) (((val) + (align) - 1) & ~((align) - 1))
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struct gralloc_drm_t;
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struct gralloc_drm_bo_t;
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enum {
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GRALLOC_MODULE_PERFORM_GET_DRM_FD = 0x80000002,
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};
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struct gralloc_drm_t *gralloc_drm_create(void);
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void gralloc_drm_destroy(struct gralloc_drm_t *drm);
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int gralloc_drm_get_fd(struct gralloc_drm_t *drm);
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static inline int gralloc_drm_get_bpp(int format)
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{
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int bpp;
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switch (format) {
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case HAL_PIXEL_FORMAT_RGBA_8888:
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case HAL_PIXEL_FORMAT_RGBX_8888:
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case HAL_PIXEL_FORMAT_BGRA_8888:
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bpp = 4;
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break;
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case HAL_PIXEL_FORMAT_RGB_888:
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bpp = 3;
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break;
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case HAL_PIXEL_FORMAT_RGB_565:
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case HAL_PIXEL_FORMAT_YCbCr_422_I:
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bpp = 2;
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break;
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/* planar; only Y is considered */
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case HAL_PIXEL_FORMAT_YV12:
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case HAL_PIXEL_FORMAT_YCbCr_422_SP:
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case HAL_PIXEL_FORMAT_YCrCb_420_SP:
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case HAL_PIXEL_FORMAT_YCbCr_420_888:
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bpp = 1;
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break;
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default:
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bpp = 0;
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break;
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}
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return bpp;
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}
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static inline void gralloc_drm_align_geometry(int format, int *width, int *height)
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{
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int align_w = 1, align_h = 1, extra_height_div = 0;
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switch (format) {
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case HAL_PIXEL_FORMAT_YV12:
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align_w = 32;
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align_h = 2;
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extra_height_div = 2;
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break;
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case HAL_PIXEL_FORMAT_YCbCr_422_SP:
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align_w = 2;
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extra_height_div = 1;
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break;
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case HAL_PIXEL_FORMAT_YCrCb_420_SP:
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case HAL_PIXEL_FORMAT_YCbCr_420_888:
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align_w = 2;
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align_h = 2;
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extra_height_div = 2;
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break;
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case HAL_PIXEL_FORMAT_YCbCr_422_I:
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align_w = 2;
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break;
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}
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*width = ALIGN(*width, align_w);
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*height = ALIGN(*height, align_h);
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if (extra_height_div)
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*height += *height / extra_height_div;
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}
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int gralloc_drm_handle_register(buffer_handle_t handle, struct gralloc_drm_t *drm);
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int gralloc_drm_handle_unregister(buffer_handle_t handle);
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struct gralloc_drm_bo_t *gralloc_drm_bo_create(struct gralloc_drm_t *drm, int width, int height, int format, int usage);
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void gralloc_drm_bo_decref(struct gralloc_drm_bo_t *bo);
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struct gralloc_drm_bo_t *gralloc_drm_bo_from_handle(buffer_handle_t handle);
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buffer_handle_t gralloc_drm_bo_get_handle(struct gralloc_drm_bo_t *bo, int *stride);
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int gralloc_drm_get_gem_handle(buffer_handle_t handle);
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void gralloc_drm_resolve_format(buffer_handle_t _handle, uint32_t *pitches, uint32_t *offsets, uint32_t *handles);
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unsigned int planes_for_format(struct gralloc_drm_t *drm, int hal_format);
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int gralloc_drm_bo_lock(struct gralloc_drm_bo_t *bo, int x, int y, int w, int h, int enable_write, void **addr);
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void gralloc_drm_bo_unlock(struct gralloc_drm_bo_t *bo);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _GRALLOC_DRM_H_ */
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