#define __GBM__ 1
+#include <stddef.h>
#include <stdint.h>
/**
uint64_t u64;
};
-/** Format of the allocated buffer */
-enum gbm_bo_format {
- /** RGB with 8 bits per channel in a 32 bit value */
- GBM_BO_FORMAT_XRGB8888,
- /** ARGB with 8 bits per channel in a 32 bit value */
- GBM_BO_FORMAT_ARGB8888
-};
+#define GBM_MAX_PLANES 4
#define __gbm_fourcc_code(a,b,c,d) ((uint32_t)(a) | ((uint32_t)(b) << 8) | \
((uint32_t)(c) << 16) | ((uint32_t)(d) << 24))
/* color index */
#define GBM_FORMAT_C8 __gbm_fourcc_code('C', '8', ' ', ' ') /* [7:0] C */
+/* 8 bpp Red */
+#define GBM_FORMAT_R8 __gbm_fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
+
+/* 16 bpp RG */
+#define GBM_FORMAT_RG88 __gbm_fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
+#define GBM_FORMAT_GR88 __gbm_fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
+
/* 8 bpp RGB */
#define GBM_FORMAT_RGB332 __gbm_fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
#define GBM_FORMAT_BGR233 __gbm_fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */
#define GBM_FORMAT_YUV444 __gbm_fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */
#define GBM_FORMAT_YVU444 __gbm_fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */
+/*
+ * Format Modifiers:
+ *
+ * Format modifiers describe, typically, a re-ordering or modification
+ * of the data in a plane of an FB. This can be used to express tiled/
+ * swizzled formats, or compression, or a combination of the two.
+ *
+ * The upper 8 bits of the format modifier are a vendor-id as assigned
+ * below. The lower 56 bits are assigned as vendor sees fit.
+ */
+
+/* Vendor Ids: */
+#define GBM_FORMAT_MOD_NONE 0
+#define GBM_FORMAT_MOD_VENDOR_INTEL 0x01
+#define GBM_FORMAT_MOD_VENDOR_AMD 0x02
+#define GBM_FORMAT_MOD_VENDOR_NV 0x03
+#define GBM_FORMAT_MOD_VENDOR_SAMSUNG 0x04
+#define GBM_FORMAT_MOD_VENDOR_QCOM 0x05
+/* add more to the end as needed */
+
+#define gbm_fourcc_mod_code(vendor, val) \
+ ((((__u64)GBM_FORMAT_MOD_VENDOR_## vendor) << 56) | (val & 0x00ffffffffffffffULL))
/**
* Flags to indicate the intended use for the buffer - these are passed into
* Buffer is guaranteed to be laid out linearly in memory. That is, the
* buffer is laid out as an array with 'height' blocks, each block with
* length 'stride'. Each stride is in the same order as the rows of the
- * buffer.
+ * buffer. This is intended to be used with buffers that will be accessed
+ * via dma-buf mmap().
*/
GBM_BO_USE_LINEAR = (1 << 4),
+ /**
+ * The buffer will be used as a texture that will be sampled from.
+ */
+ GBM_BO_USE_TEXTURING = (1 << 5),
+ /**
+ * The buffer will be written to by a camera subsystem.
+ */
+ GBM_BO_USE_CAMERA_WRITE = (1 << 6),
+ /**
+ * The buffer will be read from by a camera subsystem.
+ */
+ GBM_BO_USE_CAMERA_READ = (1 << 7),
+ /**
+ * Buffer inaccessible to unprivileged users.
+ */
+ GBM_BO_USE_PROTECTED = (1 << 8),
+ /**
+ * These flags specify the frequency of software access. These flags do not
+ * guarantee the buffer is linear, but do guarantee gbm_bo_map(..) will
+ * present a linear view.
+ */
+ GBM_BO_USE_SW_READ_OFTEN = (1 << 9),
+ GBM_BO_USE_SW_READ_RARELY = (1 << 10),
+ GBM_BO_USE_SW_WRITE_OFTEN = (1 << 11),
+ GBM_BO_USE_SW_WRITE_RARELY = (1 << 12),
+ /**
+ * The buffer will be written by a video decode accelerator.
+ */
+ GBM_BO_USE_HW_VIDEO_DECODER = (1 << 13),
};
int
uint32_t width, uint32_t height,
uint32_t format, uint32_t flags);
+struct gbm_bo *
+gbm_bo_create_with_modifiers(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers, uint32_t count);
+
#define GBM_BO_IMPORT_WL_BUFFER 0x5501
#define GBM_BO_IMPORT_EGL_IMAGE 0x5502
#define GBM_BO_IMPORT_FD 0x5503
+#define GBM_BO_IMPORT_FD_PLANAR 0x5504
struct gbm_import_fd_data {
int fd;
uint32_t format;
};
+struct gbm_import_fd_planar_data {
+ int fds[GBM_MAX_PLANES];
+ uint32_t width;
+ uint32_t height;
+ uint32_t format;
+ uint32_t strides[GBM_MAX_PLANES];
+ uint32_t offsets[GBM_MAX_PLANES];
+ uint64_t format_modifiers[GBM_MAX_PLANES];
+};
+
struct gbm_bo *
gbm_bo_import(struct gbm_device *gbm, uint32_t type,
void *buffer, uint32_t usage);
+/**
+ * Flags to indicate the type of mapping for the buffer - these are
+ * passed into gbm_bo_map(). The caller must set the union of all the
+ * flags that are appropriate.
+ *
+ * These flags are independent of the GBM_BO_USE_* creation flags. However,
+ * mapping the buffer may require copying to/from a staging buffer.
+ *
+ * See also: pipe_transfer_usage
+ */
+enum gbm_bo_transfer_flags {
+ /**
+ * Buffer contents read back (or accessed directly) at transfer
+ * create time.
+ */
+ GBM_BO_TRANSFER_READ = (1 << 0),
+ /**
+ * Buffer contents will be written back at unmap time
+ * (or modified as a result of being accessed directly).
+ */
+ GBM_BO_TRANSFER_WRITE = (1 << 1),
+ /**
+ * Read/modify/write
+ */
+ GBM_BO_TRANSFER_READ_WRITE = (GBM_BO_TRANSFER_READ | GBM_BO_TRANSFER_WRITE),
+};
+
+void *
+gbm_bo_map(struct gbm_bo *bo,
+ uint32_t x, uint32_t y, uint32_t width, uint32_t height,
+ uint32_t flags, uint32_t *stride, void **map_data, size_t plane);
+
+void
+gbm_bo_unmap(struct gbm_bo *bo, void *map_data);
+
uint32_t
gbm_bo_get_width(struct gbm_bo *bo);
uint32_t
gbm_bo_get_format(struct gbm_bo *bo);
+uint64_t
+gbm_bo_get_format_modifier(struct gbm_bo *bo);
+
struct gbm_device *
gbm_bo_get_device(struct gbm_bo *bo);
uint32_t
gbm_bo_get_plane_stride(struct gbm_bo *bo, size_t plane);
+uint64_t
+gbm_bo_get_plane_format_modifier(struct gbm_bo *bo, size_t plane);
+
void
gbm_bo_set_user_data(struct gbm_bo *bo, void *data,
void (*destroy_user_data)(struct gbm_bo *, void *));
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