#include <string.h>
#include <stdint.h>
-#include <sys/types.h>
+#ifdef MAJOR_IN_MKDEV
+#include <sys/mkdev.h>
+#endif
+#ifdef MAJOR_IN_SYSMACROS
+#include <sys/sysmacros.h>
+#endif
#include <sys/stat.h>
#include <unistd.h>
+#include <errno.h>
#include "gbm.h"
#include "gbmint.h"
#include "backend.h"
-#define ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
-
-static struct gbm_device *devices[16];
-
-static int device_num = 0;
-
/** Returns the file description for the gbm device
*
* \return The fd that the struct gbm_device was created with
return gbm->fd;
}
-/* FIXME: maybe superfluous, use udev subclass from the fd? */
/** Get the backend name for the given gbm device
*
* \return The backend name string - this belongs to the device and must not
gbm_device_is_format_supported(struct gbm_device *gbm,
uint32_t format, uint32_t usage)
{
- switch (format)
- {
- case GBM_BO_FORMAT_XRGB8888:
- format = GBM_FORMAT_XRGB8888;
- break;
- case GBM_BO_FORMAT_ARGB8888:
- format = GBM_FORMAT_ABGR8888;
- break;
- }
-
return gbm->is_format_supported(gbm, format, usage);
}
+/** Get the number of planes that are required for a given format+modifier
+ *
+ * \param gbm The gbm device returned from gbm_create_device()
+ * \param format The format to query
+ * \param modifier The modifier to query
+ */
+GBM_EXPORT int
+gbm_device_get_format_modifier_plane_count(struct gbm_device *gbm,
+ uint32_t format,
+ uint64_t modifier)
+{
+ return gbm->get_format_modifier_plane_count(gbm, format, modifier);
+}
+
/** Destroy the gbm device and free all resources associated with it.
*
* \param gbm The device created using gbm_create_device()
gbm_device_destroy(struct gbm_device *gbm)
{
gbm->refcount--;
- if (gbm->refcount == 0) {
+ if (gbm->refcount == 0)
gbm->destroy(gbm);
- _gbm_close_device();
- }
}
/** Create a gbm device for allocating buffers
* the file descriptor returned when opening a device such as \c
* /dev/dri/card0
*
- * \param fd The file descriptor for an backend specific device
+ * \param fd The file descriptor for a backend specific device
* \return The newly created struct gbm_device. The resources associated with
* the device should be freed with gbm_device_destroy() when it is no longer
* needed. If the creation of the device failed NULL will be returned.
struct stat buf;
if (fd < 0 || fstat(fd, &buf) < 0 || !S_ISCHR(buf.st_mode)) {
- fprintf(stderr, "gbm_create_device: invalid fd: %d\n", fd);
+ errno = EINVAL;
return NULL;
}
- if (device_num == 0)
- memset(devices, 0, sizeof devices);
-
gbm = _gbm_create_device(fd);
if (gbm == NULL)
return NULL;
gbm->stat = buf;
gbm->refcount = 1;
- if (device_num < ARRAY_SIZE(devices)-1)
- devices[device_num++] = gbm;
-
return gbm;
}
* \return The width of the allocated buffer object
*
*/
-GBM_EXPORT unsigned int
+GBM_EXPORT uint32_t
gbm_bo_get_width(struct gbm_bo *bo)
{
return bo->width;
* \param bo The buffer object
* \return The height of the allocated buffer object
*/
-GBM_EXPORT unsigned int
+GBM_EXPORT uint32_t
gbm_bo_get_height(struct gbm_bo *bo)
{
return bo->height;
GBM_EXPORT uint32_t
gbm_bo_get_stride(struct gbm_bo *bo)
{
- return bo->stride;
+ return gbm_bo_get_stride_for_plane(bo, 0);
+}
+
+/** Get the stride for the given plane
+ *
+ * \param bo The buffer object
+ * \param plane for which you want the stride
+ *
+ * \sa gbm_bo_get_stride()
+ */
+GBM_EXPORT uint32_t
+gbm_bo_get_stride_for_plane(struct gbm_bo *bo, int plane)
+{
+ return bo->gbm->bo_get_stride(bo, plane);
}
/** Get the format of the buffer object
* The format of the pixels in the buffer.
*
* \param bo The buffer object
- * \return The format of buffer object, on of the GBM_FORMAT_* codes
+ * \return The format of buffer object, one of the GBM_FORMAT_* codes
*/
GBM_EXPORT uint32_t
gbm_bo_get_format(struct gbm_bo *bo)
return bo->format;
}
+/** Get the bit-per-pixel of the buffer object's format
+ *
+ * The bits-per-pixel of the buffer object's format.
+ *
+ * Note; The 'in-memory pixel' concept makes no sense for YUV formats
+ * (pixels are the result of the combination of multiple memory sources:
+ * Y, Cb & Cr; usually these are even in separate buffers), so YUV
+ * formats are not supported by this function.
+ *
+ * \param bo The buffer object
+ * \return The number of bits0per-pixel of the buffer object's format.
+ */
+GBM_EXPORT uint32_t
+gbm_bo_get_bpp(struct gbm_bo *bo)
+{
+ switch (bo->format) {
+ default:
+ return 0;
+ case GBM_FORMAT_C8:
+ case GBM_FORMAT_R8:
+ case GBM_FORMAT_RGB332:
+ case GBM_FORMAT_BGR233:
+ return 8;
+ case GBM_FORMAT_GR88:
+ case GBM_FORMAT_XRGB4444:
+ case GBM_FORMAT_XBGR4444:
+ case GBM_FORMAT_RGBX4444:
+ case GBM_FORMAT_BGRX4444:
+ case GBM_FORMAT_ARGB4444:
+ case GBM_FORMAT_ABGR4444:
+ case GBM_FORMAT_RGBA4444:
+ case GBM_FORMAT_BGRA4444:
+ case GBM_FORMAT_XRGB1555:
+ case GBM_FORMAT_XBGR1555:
+ case GBM_FORMAT_RGBX5551:
+ case GBM_FORMAT_BGRX5551:
+ case GBM_FORMAT_ARGB1555:
+ case GBM_FORMAT_ABGR1555:
+ case GBM_FORMAT_RGBA5551:
+ case GBM_FORMAT_BGRA5551:
+ case GBM_FORMAT_RGB565:
+ case GBM_FORMAT_BGR565:
+ return 16;
+ case GBM_FORMAT_RGB888:
+ case GBM_FORMAT_BGR888:
+ return 24;
+ case GBM_FORMAT_XRGB8888:
+ case GBM_FORMAT_XBGR8888:
+ case GBM_FORMAT_RGBX8888:
+ case GBM_FORMAT_BGRX8888:
+ case GBM_FORMAT_ARGB8888:
+ case GBM_FORMAT_ABGR8888:
+ case GBM_FORMAT_RGBA8888:
+ case GBM_FORMAT_BGRA8888:
+ case GBM_FORMAT_XRGB2101010:
+ case GBM_FORMAT_XBGR2101010:
+ case GBM_FORMAT_RGBX1010102:
+ case GBM_FORMAT_BGRX1010102:
+ case GBM_FORMAT_ARGB2101010:
+ case GBM_FORMAT_ABGR2101010:
+ case GBM_FORMAT_RGBA1010102:
+ case GBM_FORMAT_BGRA1010102:
+ return 32;
+ case GBM_FORMAT_XBGR16161616F:
+ case GBM_FORMAT_ABGR16161616F:
+ return 64;
+ }
+}
+
+/** Get the offset for the data of the specified plane
+ *
+ * Extra planes, and even the first plane, may have an offset from the start of
+ * the buffer object. This function will provide the offset for the given plane
+ * to be used in various KMS APIs.
+ *
+ * \param bo The buffer object
+ * \return The offset
+ */
+GBM_EXPORT uint32_t
+gbm_bo_get_offset(struct gbm_bo *bo, int plane)
+{
+ return bo->gbm->bo_get_offset(bo, plane);
+}
+
+/** Get the gbm device used to create the buffer object
+ *
+ * \param bo The buffer object
+ * \return Returns the gbm device with which the buffer object was created
+ */
+GBM_EXPORT struct gbm_device *
+gbm_bo_get_device(struct gbm_bo *bo)
+{
+ return bo->gbm;
+}
+
/** Get the handle of the buffer object
*
* This is stored in the platform generic union gbm_bo_handle type. However
/** Get a DMA-BUF file descriptor for the buffer object
*
* This function creates a DMA-BUF (also known as PRIME) file descriptor
- * handle for the buffer object. Eeach call to gbm_bo_get_fd() returns a new
+ * handle for the buffer object. Each call to gbm_bo_get_fd() returns a new
* file descriptor and the caller is responsible for closing the file
* descriptor.
* \param bo The buffer object
- * \return Returns a file descriptor referring to the underlying buffer
+ * \return Returns a file descriptor referring to the underlying buffer or -1
+ * if an error occurs.
*/
GBM_EXPORT int
gbm_bo_get_fd(struct gbm_bo *bo)
return bo->gbm->bo_get_fd(bo);
}
+/** Get the number of planes for the given bo.
+ *
+ * \param bo The buffer object
+ * \return The number of planes
+ */
+GBM_EXPORT int
+gbm_bo_get_plane_count(struct gbm_bo *bo)
+{
+ return bo->gbm->bo_get_planes(bo);
+}
+
+/** Get the handle for the specified plane of the buffer object
+ *
+ * This function gets the handle for any plane associated with the BO. When
+ * dealing with multi-planar formats, or formats which might have implicit
+ * planes based on different underlying hardware it is necessary for the client
+ * to be able to get this information to pass to the DRM.
+ *
+ * \param bo The buffer object
+ * \param plane the plane to get a handle for
+ *
+ * \sa gbm_bo_get_handle()
+ */
+GBM_EXPORT union gbm_bo_handle
+gbm_bo_get_handle_for_plane(struct gbm_bo *bo, int plane)
+{
+ return bo->gbm->bo_get_handle(bo, plane);
+}
+
+/**
+ * Get the chosen modifier for the buffer object
+ *
+ * This function returns the modifier that was chosen for the object. These
+ * properties may be generic, or platform/implementation dependent.
+ *
+ * \param bo The buffer object
+ * \return Returns the selected modifier (chosen by the implementation) for the
+ * BO.
+ * \sa gbm_bo_create_with_modifiers() where possible modifiers are set
+ * \sa gbm_surface_create_with_modifiers() where possible modifiers are set
+ * \sa define DRM_FORMAT_MOD_* in drm_fourcc.h for possible modifiers
+ */
+GBM_EXPORT uint64_t
+gbm_bo_get_modifier(struct gbm_bo *bo)
+{
+ return bo->gbm->bo_get_modifier(bo);
+}
/** Write data into the buffer object
*
* If the buffer object was created with the GBM_BO_USE_WRITE flag,
- * this function can used to write data into the buffer object. The
- * data is copied directly into the object and it's the responsiblity
+ * this function can be used to write data into the buffer object. The
+ * data is copied directly into the object and it's the responsibility
* of the caller to make sure the data represents valid pixel data,
* according to the width, height, stride and format of the buffer object.
*
* \param bo The buffer object
* \param buf The data to write
* \param count The number of bytes to write
- * \return Returns -1 on error, 0 otherwise
+ * \return Returns 0 on success, otherwise -1 is returned an errno set
*/
GBM_EXPORT int
gbm_bo_write(struct gbm_bo *bo, const void *buf, size_t count)
return bo->gbm->bo_write(bo, buf, count);
}
-/** Get the gbm device used to create the buffer object
- *
- * \param bo The buffer object
- * \return Returns the gbm device with which the buffer object was created
- */
-GBM_EXPORT struct gbm_device *
-gbm_bo_get_device(struct gbm_bo *bo)
-{
- return bo->gbm;
-}
-
/** Set the user data associated with a buffer object
*
* \param bo The buffer object
* \param gbm The gbm device returned from gbm_create_device()
* \param width The width for the buffer
* \param height The height for the buffer
- * \param format The format to use for the buffer
+ * \param format The format to use for the buffer, from GBM_FORMAT_* or
+ * GBM_BO_FORMAT_* tokens
* \param usage The union of the usage flags for this buffer
*
* \return A newly allocated buffer that should be freed with gbm_bo_destroy()
* when no longer needed. If an error occurs during allocation %NULL will be
- * returned.
+ * returned and errno set.
*
- * \sa enum gbm_bo_format for the list of formats
* \sa enum gbm_bo_flags for the list of usage flags
*/
GBM_EXPORT struct gbm_bo *
uint32_t width, uint32_t height,
uint32_t format, uint32_t usage)
{
- if (width == 0 || height == 0)
+ if (width == 0 || height == 0) {
+ errno = EINVAL;
return NULL;
+ }
+
+ return gbm->bo_create(gbm, width, height, format, usage, NULL, 0);
+}
- if (usage & GBM_BO_USE_CURSOR_64X64 &&
- (width != 64 || height != 64))
+GBM_EXPORT 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,
+ const unsigned int count)
+{
+ if (width == 0 || height == 0) {
+ errno = EINVAL;
return NULL;
+ }
- switch (format)
- {
- case GBM_BO_FORMAT_XRGB8888:
- format = GBM_FORMAT_XRGB8888;
- break;
- case GBM_BO_FORMAT_ARGB8888:
- format = GBM_FORMAT_ABGR8888;
- break;
+ if ((count && !modifiers) || (modifiers && !count)) {
+ errno = EINVAL;
+ return NULL;
}
- return gbm->bo_create(gbm, width, height, format, usage);
+ return gbm->bo_create(gbm, width, height, format, 0, modifiers, count);
}
/**
- * Create a gbm buffer object from an foreign object
+ * Create a gbm buffer object from a foreign object
*
* This function imports a foreign object and creates a new gbm bo for it.
- * This enabled using the foreign object with a display API such as KMS.
- * Currently two types of foreign objects are supported, indicated by the type
+ * This enables using the foreign object with a display API such as KMS.
+ * Currently these types of foreign objects are supported, indicated by the type
* argument:
*
* GBM_BO_IMPORT_WL_BUFFER
* GBM_BO_IMPORT_EGL_IMAGE
* GBM_BO_IMPORT_FD
+ * GBM_BO_IMPORT_FD_MODIFIER
*
- * The the gbm bo shares the underlying pixels but its life-time is
+ * The gbm bo shares the underlying pixels but its life-time is
* independent of the foreign object.
*
* \param gbm The gbm device returned from gbm_create_device()
- * \param gbm The type of object we're importing
- * \param gbm Pointer to the external object
+ * \param type The type of object we're importing
+ * \param buffer Pointer to the external object
* \param usage The union of the usage flags for this buffer
*
* \return A newly allocated buffer object that should be freed with
- * gbm_bo_destroy() when no longer needed.
+ * gbm_bo_destroy() when no longer needed. On error, %NULL is returned
+ * and errno is set.
*
* \sa enum gbm_bo_flags for the list of usage flags
*/
}
/**
+ * Map a region of a gbm buffer object for cpu access
+ *
+ * This function maps a region of a gbm bo for cpu read and/or write
+ * access.
+ *
+ * The mapping exposes a linear view of the buffer object even if the buffer
+ * has a non-linear modifier.
+ *
+ * This function may require intermediate buffer copies (ie. it may be slow).
+ *
+ * \param bo The buffer object
+ * \param x The X (top left origin) starting position of the mapped region for
+ * the buffer
+ * \param y The Y (top left origin) starting position of the mapped region for
+ * the buffer
+ * \param width The width of the mapped region for the buffer
+ * \param height The height of the mapped region for the buffer
+ * \param flags The union of the GBM_BO_TRANSFER_* flags for this buffer
+ * \param stride Ptr for returned stride in bytes of the mapped region
+ * \param map_data Returned opaque ptr for the mapped region
+ *
+ * \return Address of the mapped buffer that should be unmapped with
+ * gbm_bo_unmap() when no longer needed. On error, %NULL is returned
+ * and errno is set.
+ *
+ * \sa enum gbm_bo_transfer_flags for the list of flags
+ */
+GBM_EXPORT 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)
+{
+ if (!bo || width == 0 || height == 0 || !stride || !map_data) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ return bo->gbm->bo_map(bo, x, y, width, height,
+ flags, stride, map_data);
+}
+
+/**
+ * Unmap a previously mapped region of a gbm buffer object
+ *
+ * This function unmaps a region of a gbm bo for cpu read and/or write
+ * access.
+ *
+ * \param bo The buffer object
+ * \param map_data opaque ptr returned from prior gbm_bo_map
+ */
+GBM_EXPORT void
+gbm_bo_unmap(struct gbm_bo *bo, void *map_data)
+{
+ bo->gbm->bo_unmap(bo, map_data);
+}
+
+/**
* Allocate a surface object
*
* \param gbm The gbm device returned from gbm_create_device()
uint32_t width, uint32_t height,
uint32_t format, uint32_t flags)
{
- switch (format)
- {
- case GBM_BO_FORMAT_XRGB8888:
- format = GBM_FORMAT_XRGB8888;
- break;
- case GBM_BO_FORMAT_ARGB8888:
- format = GBM_FORMAT_ABGR8888;
- break;
+ return gbm->surface_create(gbm, width, height, format, flags, NULL, 0);
+}
+
+GBM_EXPORT struct gbm_surface *
+gbm_surface_create_with_modifiers(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers,
+ const unsigned int count)
+{
+ if ((count && !modifiers) || (modifiers && !count)) {
+ errno = EINVAL;
+ return NULL;
}
- return gbm->surface_create(gbm, width, height, format, flags);
+ return gbm->surface_create(gbm, width, height, format, 0,
+ modifiers, count);
}
/**
*
* Before starting a new frame, the surface must have a buffer
* available for rendering. Initially, a gbm surface will have a free
- * buffer, but after one of more buffers have been locked (\sa
+ * buffer, but after one or more buffers have been locked (\sa
* gbm_surface_lock_front_buffer()), the application must check for a
* free buffer before rendering.
*
{
return surf->gbm->surface_has_free_buffers(surf);
}
+
+/* The two GBM_BO_FORMAT_[XA]RGB8888 formats alias the GBM_FORMAT_*
+ * formats of the same name. We want to accept them whenever someone
+ * has a GBM format, but never return them to the user. */
+uint32_t
+gbm_format_canonicalize(uint32_t gbm_format)
+{
+ switch (gbm_format) {
+ case GBM_BO_FORMAT_XRGB8888:
+ return GBM_FORMAT_XRGB8888;
+ case GBM_BO_FORMAT_ARGB8888:
+ return GBM_FORMAT_ARGB8888;
+ default:
+ return gbm_format;
+ }
+}
+
+/**
+ * Returns a string representing the fourcc format name.
+ *
+ * \param desc Caller-provided storage for the format name string.
+ * \return String containing the fourcc of the format.
+ */
+GBM_EXPORT char *
+gbm_format_get_name(uint32_t gbm_format, struct gbm_format_name_desc *desc)
+{
+ gbm_format = gbm_format_canonicalize(gbm_format);
+
+ desc->name[0] = gbm_format;
+ desc->name[1] = gbm_format >> 8;
+ desc->name[2] = gbm_format >> 16;
+ desc->name[3] = gbm_format >> 24;
+ desc->name[4] = 0;
+
+ return desc->name;
+}
#ifndef _GBM_H_
#define _GBM_H_
+#define __GBM__ 1
+
+#include <stddef.h>
+#include <stdint.h>
+
#ifdef __cplusplus
extern "C" {
#endif
-#define __GBM__ 1
-
-#include <stdint.h>
-
/**
* \file gbm.h
* \brief Generic Buffer Manager
GBM_BO_FORMAT_ARGB8888
};
+
+/**
+ * The FourCC format codes are taken from the drm_fourcc.h definition, and
+ * re-namespaced. New GBM formats must not be added, unless they are
+ * identical ports from drm_fourcc.
+ */
#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_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_RGBA1010102 __gbm_fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
#define GBM_FORMAT_BGRA1010102 __gbm_fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */
+/*
+ * Floating point 64bpp RGB
+ * IEEE 754-2008 binary16 half-precision float
+ * [15:0] sign:exponent:mantissa 1:5:10
+ */
+#define GBM_FORMAT_XBGR16161616F __gbm_fourcc_code('X', 'B', '4', 'H') /* [63:0] x:B:G:R 16:16:16:16 little endian */
+
+#define GBM_FORMAT_ABGR16161616F __gbm_fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */
+
/* packed YCbCr */
#define GBM_FORMAT_YUYV __gbm_fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
#define GBM_FORMAT_YVYU __gbm_fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
#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 */
+struct gbm_format_name_desc {
+ char name[5];
+};
/**
* Flags to indicate the intended use for the buffer - these are passed into
GBM_BO_USE_RENDERING = (1 << 2),
/**
* Buffer can be used for gbm_bo_write. This is guaranteed to work
- * with GBM_BO_USE_CURSOR. but may not work for other combinations.
+ * with GBM_BO_USE_CURSOR, but may not work for other combinations.
*/
GBM_BO_USE_WRITE = (1 << 3),
/**
* Buffer is linear, i.e. not tiled.
*/
GBM_BO_USE_LINEAR = (1 << 4),
+ /**
+ * Buffer is protected, i.e. encrypted and not readable by CPU or any
+ * other non-secure / non-trusted components nor by non-trusted OpenGL,
+ * OpenCL, and Vulkan applications.
+ */
+ GBM_BO_USE_PROTECTED = (1 << 5),
};
int
gbm_device_is_format_supported(struct gbm_device *gbm,
uint32_t format, uint32_t usage);
+int
+gbm_device_get_format_modifier_plane_count(struct gbm_device *gbm,
+ uint32_t format,
+ uint64_t modifier);
+
void
gbm_device_destroy(struct gbm_device *gbm);
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,
+ const unsigned int 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_MODIFIER 0x5504
struct gbm_import_fd_data {
int fd;
uint32_t format;
};
+#define GBM_MAX_PLANES 4
+
+struct gbm_import_fd_modifier_data {
+ uint32_t width;
+ uint32_t height;
+ uint32_t format;
+ uint32_t num_fds;
+ int fds[GBM_MAX_PLANES];
+ int strides[GBM_MAX_PLANES];
+ int offsets[GBM_MAX_PLANES];
+ uint64_t modifier;
+};
+
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_map_flags
+ */
+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);
+
+void
+gbm_bo_unmap(struct gbm_bo *bo, void *map_data);
+
uint32_t
gbm_bo_get_width(struct gbm_bo *bo);
gbm_bo_get_stride(struct gbm_bo *bo);
uint32_t
+gbm_bo_get_stride_for_plane(struct gbm_bo *bo, int plane);
+
+uint32_t
gbm_bo_get_format(struct gbm_bo *bo);
+uint32_t
+gbm_bo_get_bpp(struct gbm_bo *bo);
+
+uint32_t
+gbm_bo_get_offset(struct gbm_bo *bo, int plane);
+
struct gbm_device *
gbm_bo_get_device(struct gbm_bo *bo);
int
gbm_bo_get_fd(struct gbm_bo *bo);
+uint64_t
+gbm_bo_get_modifier(struct gbm_bo *bo);
+
+int
+gbm_bo_get_plane_count(struct gbm_bo *bo);
+
+union gbm_bo_handle
+gbm_bo_get_handle_for_plane(struct gbm_bo *bo, int plane);
+
int
gbm_bo_write(struct gbm_bo *bo, const void *buf, size_t count);
uint32_t width, uint32_t height,
uint32_t format, uint32_t flags);
+struct gbm_surface *
+gbm_surface_create_with_modifiers(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers,
+ const unsigned int count);
+
struct gbm_bo *
gbm_surface_lock_front_buffer(struct gbm_surface *surface);
void
gbm_surface_destroy(struct gbm_surface *surface);
+char *
+gbm_format_get_name(uint32_t gbm_format, struct gbm_format_name_desc *desc);
+
#ifdef __cplusplus
}
#endif
projects / platform / core / uifw / libgbm.git / commitdiff