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author | Rob Herring <robh@kernel.org> | 2011-06-12 16:21:30 +0800 |
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committer | Rob Herring <robh@kernel.org> | 2016-04-01 15:32:25 -0500 |
commit | f6a33583e7ac19ef5a3f1d104b768ecd471fa851 (patch) | |
tree | 2372158843f33af9b4d0a3a5da6653033abfd1b7 /gralloc_drm_handle.h | |
download | gbm_gralloc-f6a33583e7ac19ef5a3f1d104b768ecd471fa851.tar.gz gbm_gralloc-f6a33583e7ac19ef5a3f1d104b768ecd471fa851.tar.xz |
Initial GBM based gralloc
Based on drm_gralloc. Some remants of drm_gralloc remain to be
compatible with mesa and drm_hwcomposer.
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'gralloc_drm_handle.h')
-rw-r--r-- | gralloc_drm_handle.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/gralloc_drm_handle.h b/gralloc_drm_handle.h new file mode 100644 index 0000000..be2984a --- /dev/null +++ b/gralloc_drm_handle.h @@ -0,0 +1,92 @@ +/* + * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com> + * Copyright (C) 2010-2011 LunarG Inc. + * Copyright (C) 2016 Linaro, Ltd., Rob Herring <robh@kernel.org> + * + * 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_GBM_HANDLE_H_ +#define _GRALLOC_GBM_HANDLE_H_ + +#include <cutils/log.h> +#include <cutils/native_handle.h> +#include <system/graphics.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct gralloc_drm_handle_t { + native_handle_t base; + + /* file descriptors */ + int prime_fd; + + /* integers */ + int magic; + + int width; + int height; + int format; + int usage; + + int name; /* the name of the bo */ + int stride; /* the stride in bytes */ + + int data_owner; /* owner of data (for validation) */ + union { + void *data; /* pointer to struct gralloc_gbm_bo_t */ + uint64_t reserved; + } __attribute__((aligned(8))); +}; +#define GRALLOC_GBM_HANDLE_MAGIC 0x12345678 +#define GRALLOC_GBM_HANDLE_NUM_FDS 1 +#define GRALLOC_GBM_HANDLE_NUM_INTS ( \ + ((sizeof(struct gralloc_drm_handle_t) - sizeof(native_handle_t))/sizeof(int)) \ + - GRALLOC_GBM_HANDLE_NUM_FDS) + +static inline struct gralloc_drm_handle_t *gralloc_drm_handle(buffer_handle_t _handle) +{ + struct gralloc_drm_handle_t *handle = + (struct gralloc_drm_handle_t *) _handle; + + if (handle && (handle->base.version != sizeof(handle->base) || + handle->base.numInts != GRALLOC_GBM_HANDLE_NUM_INTS || + handle->base.numFds != GRALLOC_GBM_HANDLE_NUM_FDS || + handle->magic != GRALLOC_GBM_HANDLE_MAGIC)) { + ALOGE("invalid handle: version=%d, numInts=%d, numFds=%d, magic=%x", + handle->base.version, handle->base.numInts, + handle->base.numFds, handle->magic); + handle = NULL; + } + + return handle; +} + +static inline int gralloc_drm_get_prime_fd(buffer_handle_t _handle) +{ + struct gralloc_drm_handle_t *handle = gralloc_drm_handle(_handle); + return (handle) ? handle->prime_fd : -1; +} + +#ifdef __cplusplus +} +#endif +#endif /* _GRALLOC_GBM_HANDLE_H_ */ |