Linaro-mm-sig December 2013

linaro-mm-sig@lists.linaro.org

12 participants
7 discussions

by Thierry Reding

This is a simple test module that can be used to allocate, export and delete DMA-BUF objects. It can be used to test DMA-BUF sharing in systems that lack a real second driver. Signed-off-by: Thierry Reding <treding(a)nvidia.com> --- drivers/base/Kconfig | 4 + drivers/base/Makefile | 1 + drivers/base/dma-buf-test.c | 308 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 313 insertions(+) create mode 100644 drivers/base/dma-buf-test.c diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index e373671652b0..bed2abb9491b 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -200,6 +200,10 @@ config DMA_SHARED_BUFFER APIs extension; the file's descriptor can then be passed on to other driver. +config DMA_BUF_TEST + tristate "DMA-BUF test module" + depends on DMA_SHARED_BUFFER + config DMA_CMA bool "DMA Contiguous Memory Allocator" depends on HAVE_DMA_CONTIGUOUS && CMA diff --git a/drivers/base/Makefile b/drivers/base/Makefile index 94e8a80e87f8..cad983b6626f 100644 --- a/drivers/base/Makefile +++ b/drivers/base/Makefile @@ -25,3 +25,4 @@ obj-$(CONFIG_PINCTRL) += pinctrl.o ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG +obj-$(CONFIG_DMA_BUF_TEST) += dma-buf-test.o diff --git a/drivers/base/dma-buf-test.c b/drivers/base/dma-buf-test.c new file mode 100644 index 000000000000..f5498b74a09b --- /dev/null +++ b/drivers/base/dma-buf-test.c @@ -0,0 +1,308 @@ +#include <linux/dma-buf.h> +#include <linux/err.h> +#include <linux/fs.h> +#include <linux/miscdevice.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/uaccess.h> + +struct dmabuf_create { + __u32 flags; + __u32 size; +}; + +#define DMABUF_IOCTL_BASE 'D' +#define DMABUF_IOCTL_CREATE _IOWR(DMABUF_IOCTL_BASE, 0, struct dmabuf_create) +#define DMABUF_IOCTL_DELETE _IOWR(DMABUF_IOCTL_BASE, 1, int) +#define DMABUF_IOCTL_EXPORT _IOWR(DMABUF_IOCTL_BASE, 2, int) + +struct dmabuf_file { + struct dma_buf *buf; + dma_addr_t phys; + size_t size; + void *virt; +}; + +static int dmabuf_attach(struct dma_buf *buf, struct device *dev, + struct dma_buf_attachment *attach) +{ + return 0; +} + +static void dmabuf_detach(struct dma_buf *buf, + struct dma_buf_attachment *attach) +{ +} + +static struct sg_table *dmabuf_map_dma_buf(struct dma_buf_attachment *attach, + enum dma_data_direction dir) +{ + struct dmabuf_file *priv = attach->dmabuf->priv; + struct sg_table *sgt; + + sgt = kmalloc(sizeof(*sgt), GFP_KERNEL); + if (!sgt) + return NULL; + + if (sg_alloc_table(sgt, 1, GFP_KERNEL)) { + kfree(sgt); + return NULL; + } + + sg_dma_address(sgt->sgl) = priv->phys; + sg_dma_len(sgt->sgl) = priv->size; + + return sgt; +} + +static void dmabuf_unmap_dma_buf(struct dma_buf_attachment *attach, + struct sg_table *sgt, + enum dma_data_direction dir) +{ + sg_free_table(sgt); + kfree(sgt); +} + +static void dmabuf_release(struct dma_buf *buf) +{ +} + +static int dmabuf_begin_cpu_access(struct dma_buf *buf, size_t size, + size_t length, + enum dma_data_direction direction) +{ + return 0; +} + +static void dmabuf_end_cpu_access(struct dma_buf *buf, size_t size, + size_t length, + enum dma_data_direction direction) +{ +} + +static void *dmabuf_kmap_atomic(struct dma_buf *buf, unsigned long page) +{ + return NULL; +} + +static void dmabuf_kunmap_atomic(struct dma_buf *buf, unsigned long page, + void *vaddr) +{ +} + +static void *dmabuf_kmap(struct dma_buf *buf, unsigned long page) +{ + return NULL; +} + +static void dmabuf_kunmap(struct dma_buf *buf, unsigned long page, void *vaddr) +{ +} + +static void dmabuf_vm_open(struct vm_area_struct *vma) +{ +} + +static void dmabuf_vm_close(struct vm_area_struct *vma) +{ +} + +static int dmabuf_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +{ + return 0; +} + +static const struct vm_operations_struct dmabuf_vm_ops = { + .open = dmabuf_vm_open, + .close = dmabuf_vm_close, + .fault = dmabuf_vm_fault, +}; + +static int dmabuf_mmap(struct dma_buf *buf, struct vm_area_struct *vma) +{ + pgprot_t prot = vm_get_page_prot(vma->vm_flags); + struct dmabuf_file *priv = buf->priv; + + vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; + vma->vm_ops = &dmabuf_vm_ops; + vma->vm_private_data = priv; + vma->vm_page_prot = pgprot_writecombine(prot); + + return remap_pfn_range(vma, vma->vm_start, priv->phys >> PAGE_SHIFT, + vma->vm_end - vma->vm_start, vma->vm_page_prot); +} + +static void *dmabuf_vmap(struct dma_buf *buf) +{ + return NULL; +} + +static void dmabuf_vunmap(struct dma_buf *buf, void *vaddr) +{ +} + +static const struct dma_buf_ops dmabuf_ops = { + .attach = dmabuf_attach, + .detach = dmabuf_detach, + .map_dma_buf = dmabuf_map_dma_buf, + .unmap_dma_buf = dmabuf_unmap_dma_buf, + .release = dmabuf_release, + .begin_cpu_access = dmabuf_begin_cpu_access, + .end_cpu_access = dmabuf_end_cpu_access, + .kmap_atomic = dmabuf_kmap_atomic, + .kunmap_atomic = dmabuf_kunmap_atomic, + .kmap = dmabuf_kmap, + .kunmap = dmabuf_kunmap, + .mmap = dmabuf_mmap, + .vmap = dmabuf_vmap, + .vunmap = dmabuf_vunmap, +}; + +static int dmabuf_file_open(struct inode *inode, struct file *file) +{ + struct dmabuf_file *priv; + int ret = 0; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + file->private_data = priv; + + return ret; +} + +static int dmabuf_file_release(struct inode *inode, struct file *file) +{ + struct dmabuf_file *priv = file->private_data; + int ret = 0; + + if (priv->virt) + dma_free_writecombine(NULL, priv->size, priv->virt, priv->phys); + + if (priv->buf) + dma_buf_put(priv->buf); + + kfree(priv); + + return ret; +} + +static int dmabuf_ioctl_create(struct dmabuf_file *priv, const void __user *data) +{ + struct dmabuf_create args; + int ret = 0; + + if (priv->buf || priv->virt) + return -EBUSY; + + if (copy_from_user(&args, data, sizeof(args))) + return -EFAULT; + + priv->virt = dma_alloc_writecombine(NULL, args.size, &priv->phys, + GFP_KERNEL | __GFP_NOWARN); + if (!priv->virt) + return -ENOMEM; + + priv->buf = dma_buf_export(priv, &dmabuf_ops, args.size, args.flags); + if (!priv->buf) { + ret = -ENOMEM; + goto free; + } + + if (IS_ERR(priv->buf)) { + ret = PTR_ERR(priv->buf); + goto free; + } + + priv->size = args.size; + + return 0; + +free: + dma_free_writecombine(NULL, priv->size, priv->virt, priv->phys); + priv->virt = NULL; + return ret; +} + +static int dmabuf_ioctl_delete(struct dmabuf_file *priv, unsigned long flags) +{ + dma_free_writecombine(NULL, priv->size, priv->virt, priv->phys); + priv->virt = NULL; + priv->phys = 0; + priv->size = 0; + + dma_buf_put(priv->buf); + priv->buf = NULL; + + return 0; +} + +static int dmabuf_ioctl_export(struct dmabuf_file *priv, unsigned long flags) +{ + int err; + + get_dma_buf(priv->buf); + + err = dma_buf_fd(priv->buf, flags); + if (err < 0) + dma_buf_put(priv->buf); + + return err; +} + +static long dmabuf_file_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct dmabuf_file *priv = file->private_data; + long ret = 0; + + switch (cmd) { + case DMABUF_IOCTL_CREATE: + ret = dmabuf_ioctl_create(priv, (const void __user *)arg); + break; + + case DMABUF_IOCTL_DELETE: + ret = dmabuf_ioctl_delete(priv, arg); + break; + + case DMABUF_IOCTL_EXPORT: + ret = dmabuf_ioctl_export(priv, arg); + break; + + default: + ret = -ENOTTY; + break; + } + + return ret; +} + +static const struct file_operations dmabuf_fops = { + .owner = THIS_MODULE, + .open = dmabuf_file_open, + .release = dmabuf_file_release, + .unlocked_ioctl = dmabuf_file_ioctl, +}; + +static struct miscdevice dmabuf_device = { + .minor = 128, + .name = "dmabuf", + .fops = &dmabuf_fops, +}; + +static int __init dmabuf_init(void) +{ + return misc_register(&dmabuf_device); +} +module_init(dmabuf_init); + +static void __exit dmabuf_exit(void) +{ + misc_deregister(&dmabuf_device); +} +module_exit(dmabuf_exit); + +MODULE_AUTHOR("Thierry Reding <treding(a)nvidia.com>"); +MODULE_DESCRIPTION("DMA-BUF test driver"); +MODULE_LICENSE("GPL v2"); -- 1.8.4.2

10 years, 1 month

CMA on AArch64

by Laura Abbott

Hi, I noticed there is currently no CMA support for AArch64. Is this already on someone's TODO list or is this still open? Thanks, Laura -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

10 years, 1 month

[PATCH] dma-buf: avoid using IS_ERR_OR_NULL

by Colin Cross

dma_buf_map_attachment and dma_buf_vmap can return NULL or ERR_PTR on a error. This encourages a common buggy pattern in callers: sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL); if (IS_ERR_OR_NULL(sgt)) return PTR_ERR(sgt); This causes the caller to return 0 on an error. IS_ERR_OR_NULL is almost always a sign of poorly-defined error handling. This patch converts dma_buf_map_attachment to always return ERR_PTR, and fixes the callers that incorrectly handled NULL. There are a few more callers that were not checking for NULL at all, which would have dereferenced a NULL pointer later. There are also a few more callers that correctly handled NULL and ERR_PTR differently, I left those alone but they could also be modified to delete the NULL check. This patch also converts dma_buf_vmap to always return NULL. All the callers to dma_buf_vmap only check for NULL, and would have dereferenced an ERR_PTR and panic'd if one was ever returned. This is not consistent with the rest of the dma buf APIs, but matches the expectations of all of the callers. Signed-off-by: Colin Cross <ccross(a)android.com> --- drivers/base/dma-buf.c | 18 +++++++++++------- drivers/gpu/drm/drm_prime.c | 2 +- drivers/gpu/drm/exynos/exynos_drm_dmabuf.c | 2 +- drivers/media/v4l2-core/videobuf2-dma-contig.c | 2 +- 4 files changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c index 1e16cbd61da2..cfe1d8bc7bb8 100644 --- a/drivers/base/dma-buf.c +++ b/drivers/base/dma-buf.c @@ -251,9 +251,8 @@ EXPORT_SYMBOL_GPL(dma_buf_put); * @dmabuf: [in] buffer to attach device to. * @dev: [in] device to be attached. * - * Returns struct dma_buf_attachment * for this attachment; may return negative - * error codes. - * + * Returns struct dma_buf_attachment * for this attachment; returns ERR_PTR on + * error. */ struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf, struct device *dev) @@ -319,9 +318,8 @@ EXPORT_SYMBOL_GPL(dma_buf_detach); * @attach: [in] attachment whose scatterlist is to be returned * @direction: [in] direction of DMA transfer * - * Returns sg_table containing the scatterlist to be returned; may return NULL - * or ERR_PTR. - * + * Returns sg_table containing the scatterlist to be returned; returns ERR_PTR + * on error. */ struct sg_table *dma_buf_map_attachment(struct dma_buf_attachment *attach, enum dma_data_direction direction) @@ -334,6 +332,8 @@ struct sg_table *dma_buf_map_attachment(struct dma_buf_attachment *attach, return ERR_PTR(-EINVAL); sg_table = attach->dmabuf->ops->map_dma_buf(attach, direction); + if (!sg_table) + sg_table = ERR_PTR(-ENOMEM); return sg_table; } @@ -544,6 +544,8 @@ EXPORT_SYMBOL_GPL(dma_buf_mmap); * These calls are optional in drivers. The intended use for them * is for mapping objects linear in kernel space for high use objects. * Please attempt to use kmap/kunmap before thinking about these interfaces. + * + * Returns NULL on error. */ void *dma_buf_vmap(struct dma_buf *dmabuf) { @@ -566,7 +568,9 @@ void *dma_buf_vmap(struct dma_buf *dmabuf) BUG_ON(dmabuf->vmap_ptr); ptr = dmabuf->ops->vmap(dmabuf); - if (IS_ERR_OR_NULL(ptr)) + if (WARN_ON_ONCE(IS_ERR(ptr))) + ptr = NULL; + if (!ptr) goto out_unlock; dmabuf->vmap_ptr = ptr; diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 56805c39c906..bb516fdd195d 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -471,7 +471,7 @@ struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, get_dma_buf(dma_buf); sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL); - if (IS_ERR_OR_NULL(sgt)) { + if (IS_ERR(sgt)) { ret = PTR_ERR(sgt); goto fail_detach; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index 59827cc5e770..c786cd4f457b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -224,7 +224,7 @@ struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev, get_dma_buf(dma_buf); sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL); - if (IS_ERR_OR_NULL(sgt)) { + if (IS_ERR(sgt)) { ret = PTR_ERR(sgt); goto err_buf_detach; } diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c index 33d3871d1e13..880be0782dd9 100644 --- a/drivers/media/v4l2-core/videobuf2-dma-contig.c +++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c @@ -719,7 +719,7 @@ static int vb2_dc_map_dmabuf(void *mem_priv) /* get the associated scatterlist for this buffer */ sgt = dma_buf_map_attachment(buf->db_attach, buf->dma_dir); - if (IS_ERR_OR_NULL(sgt)) { + if (IS_ERR(sgt)) { pr_err("Error getting dmabuf scatterlist\n"); return -EINVAL; } -- 1.8.5.1

10 years, 2 months

Specifying subrect properties in dma-buf

by Sundareson, Prabindh

Hello all, I have an use-case, where a buffer "B" needs to be further operated upon by an additional operator (ex, CPU or 2D HW). The further operation is typically in smaller subrects of "B". While looking through the dma-buf API, I do not see a way by which I can specify properties of subrects in a buffer which can be specified as "read-only" to one user of the buffer, while the other user can go ahead and update it. If we have this mechanism, we can do below steps to reduce latency of locking/waiting for one full buffer update, and then making it available to the next consumer. (1) Create dma-buf using usual methods (2) Exported to 2 users - ex GPU, and 2D HW (3) GPU updates specific subrects (4) 2D HW updates specific subrects (5) When both (3) and (4) are complete, the buffer is available to next consumer. Since (3) and (4) can run in parallel, latency can be reduced. If there is a way by which this can already be done, I would appreciate if someone can point me to it. regards Prabindh

10 years, 3 months

[PATCH v3] Add support of dmabuf in wayland/weston

by benjamin.gaignard＠linaro.org

From: Benjamin Gaignard <benjamin.gaignard(a)linaro.org> The goal of this serie of patches is to add a way to use dmabuf file descriptor inside wayland and weston. In a context where there is no Mesa EGL (and so no wl_drm protocol) wl_dmabuf could be used as an alternative to shm to share buffers between hardware devices. If your hardware device (video decoder, renderer, etc...) need physical contiguous memory (obviously don't have MMU) wl_dmabuf may save the cost of one copy compare to shm. shm case: videodecoder --(copy into shm_buffer)--> weston(+pixman) --> HW renderer dmabuf case: videodecoder --(directly write in dmabuf buffer)--> weston(+pixman) --> HW renderer The server is responsible to send its supported pixel formats and the device name to be used by the client to allocate buffers. While mmap() call on dmabuf file descriptor result isn't guaranty on all architectures both server and client should take care of it before accessing to buffer data to avoid segfault. === Wayland === Benjamin Gaignard (1): Add wl_dmabuf protocol protocol/Makefile.am | 6 +- protocol/wayland-dmabuf.xml | 133 +++++++++++++++++++++ src/Makefile.am | 12 +- src/wayland-dmabuf.c | 279 +++++++++++++++++++++++++++++++++++++++++++ src/wayland-dmabuf.h | 136 +++++++++++++++++++++ 5 files changed, 562 insertions(+), 4 deletions(-) create mode 100644 protocol/wayland-dmabuf.xml create mode 100644 src/wayland-dmabuf.c create mode 100644 src/wayland-dmabuf.h === Weston === Benjamin Gaignard (1): compositor-drm: allow to be a wl_dmabuf server src/compositor-drm.c | 168 +++++++++++++++++++++++++++++++++++++++++++++++-- src/compositor.c | 4 +- src/compositor.h | 2 + src/pixman-renderer.c | 86 ++++++++++++++++++------- 4 files changed, 230 insertions(+), 30 deletions(-) -- 1.7.9.5

10 years, 4 months

[PATCH] Add wl_dmabuf protocol

by benjamin.gaignard＠linaro.org

From: Benjamin Gaignard <benjamin.gaignard(a)linaro.org> It allow to use a dmabuf file descriptor in a wayland protocol. To make as generic as possible it is up to the server to call wl_dmabuf_send_format() and/or wl_dmabuf_send_capabilities() to signal it capabilities. Signed-off-by: Benjamin Gaignard <benjamin.gaignard(a)linaro.org> --- protocol/Makefile.am | 6 +- protocol/wayland-dmabuf.xml | 134 +++++++++++++++++++++ src/Makefile.am | 12 +- src/wayland-dmabuf.c | 275 +++++++++++++++++++++++++++++++++++++++++++ src/wayland-dmabuf.h | 134 +++++++++++++++++++++ 5 files changed, 557 insertions(+), 4 deletions(-) create mode 100644 protocol/wayland-dmabuf.xml create mode 100644 src/wayland-dmabuf.c create mode 100644 src/wayland-dmabuf.h diff --git a/protocol/Makefile.am b/protocol/Makefile.am index e8b6290..8c9499f 100644 --- a/protocol/Makefile.am +++ b/protocol/Makefile.am @@ -1,4 +1,4 @@ -dist_pkgdata_DATA = wayland.xml wayland.dtd +dist_pkgdata_DATA = wayland.xml wayland-dmabuf.xml wayland.dtd if HAVE_XMLLINT .PHONY: validate @@ -6,9 +6,9 @@ if HAVE_XMLLINT .%.xml.valid: %.xml $(AM_V_GEN)$(XMLLINT) --noout --dtdvalid $(srcdir)/wayland.dtd $^ > $@ -validate: .wayland.xml.valid +validate: .wayland.xml.valid .wayland-dmabuf.xml.valid all-local: validate -CLEANFILES = .wayland.xml.valid +CLEANFILES = .wayland.xml.valid .wayland-dmabuf.xml.valid endif diff --git a/protocol/wayland-dmabuf.xml b/protocol/wayland-dmabuf.xml new file mode 100644 index 0000000..b3b7ded --- /dev/null +++ b/protocol/wayland-dmabuf.xml @@ -0,0 +1,134 @@ +<?xml version="1.0" encoding="UTF-8"?> +<protocol name="dmabuf"> + + <copyright> + Copyright © 2008-2011 Kristian Høgsberg + Copyright © 2010-2011 Intel Corporation + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that\n the above copyright notice appear in + all copies and that both that copyright notice and this permission + notice appear in supporting documentation, and that the name of + the copyright holders not be used in advertising or publicity + pertaining to distribution of the software without specific, + written prior permission. The copyright holders make no + representations about the suitability of this software for any + purpose. It is provided "as is" without express or implied + warranty. + + THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, + ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF + THIS SOFTWARE. + </copyright> + +  + <interface name="wl_dmabuf" version="1"> + <enum name="error"> + <entry name="invalid_format" value="1"/> + <entry name="invalid_file_descriptor" value="2"/> + </enum> + + <enum name="format"> +  + <entry name="c8" value="0x20203843"/> + <entry name="rgb332" value="0x38424752"/> + <entry name="bgr233" value="0x38524742"/> + <entry name="xrgb4444" value="0x32315258"/> + <entry name="xbgr4444" value="0x32314258"/> + <entry name="rgbx4444" value="0x32315852"/> + <entry name="bgrx4444" value="0x32315842"/> + <entry name="argb4444" value="0x32315241"/> + <entry name="abgr4444" value="0x32314241"/> + <entry name="rgba4444" value="0x32314152"/> + <entry name="bgra4444" value="0x32314142"/> + <entry name="xrgb1555" value="0x35315258"/> + <entry name="xbgr1555" value="0x35314258"/> + <entry name="rgbx5551" value="0x35315852"/> + <entry name="bgrx5551" value="0x35315842"/> + <entry name="argb1555" value="0x35315241"/> + <entry name="abgr1555" value="0x35314241"/> + <entry name="rgba5551" value="0x35314152"/> + <entry name="bgra5551" value="0x35314142"/> + <entry name="rgb565" value="0x36314752"/> + <entry name="bgr565" value="0x36314742"/> + <entry name="rgb888" value="0x34324752"/> + <entry name="bgr888" value="0x34324742"/> + <entry name="xrgb8888" value="0x34325258"/> + <entry name="xbgr8888" value="0x34324258"/> + <entry name="rgbx8888" value="0x34325852"/> + <entry name="bgrx8888" value="0x34325842"/> + <entry name="argb8888" value="0x34325241"/> + <entry name="abgr8888" value="0x34324241"/> + <entry name="rgba8888" value="0x34324152"/> + <entry name="bgra8888" value="0x34324142"/> + <entry name="xrgb2101010" value="0x30335258"/> + <entry name="xbgr2101010" value="0x30334258"/> + <entry name="rgbx1010102" value="0x30335852"/> + <entry name="bgrx1010102" value="0x30335842"/> + <entry name="argb2101010" value="0x30335241"/> + <entry name="abgr2101010" value="0x30334241"/> + <entry name="rgba1010102" value="0x30334152"/> + <entry name="bgra1010102" value="0x30334142"/> + <entry name="yuyv" value="0x56595559"/> + <entry name="yvyu" value="0x55595659"/> + <entry name="uyvy" value="0x59565955"/> + <entry name="vyuy" value="0x59555956"/> + <entry name="ayuv" value="0x56555941"/> + <entry name="nv12" value="0x3231564e"/> + <entry name="nv21" value="0x3132564e"/> + <entry name="nv16" value="0x3631564e"/> + <entry name="nv61" value="0x3136564e"/> + <entry name="yuv410" value="0x39565559"/> + <entry name="yvu410" value="0x39555659"/> + <entry name="yuv411" value="0x31315559"/> + <entry name="yvu411" value="0x31315659"/> + <entry name="yuv420" value="0x32315559"/> + <entry name="yvu420" value="0x32315659"/> + <entry name="yuv422" value="0x36315559"/> + <entry name="yvu422" value="0x36315659"/> + <entry name="yuv444" value="0x34325559"/> + <entry name="yvu444" value="0x34325659"/> + </enum> + +  + <request name="create_prime_buffer"> + <arg name="id" type="new_id" interface="wl_buffer"/> + <arg name="name" type="fd"/> + <arg name="width" type="int"/> + <arg name="height" type="int"/> + <arg name="format" type="uint"/> + <arg name="offset0" type="int"/> + <arg name="stride0" type="int"/> + <arg name="offset1" type="int"/> + <arg name="stride1" type="int"/> + <arg name="offset2" type="int"/> + <arg name="stride2" type="int"/> + </request> + + <event name="format"> + <arg name="format" type="uint"/> + </event> + + <enum name="capability"> + <description summary="wl_dmabuf capability bitmask"> + Bitmask of capabilities. + </description> + <entry name="mmap" value="1" summary="wl_dmabuf mmap available"/> + </enum> + + <event name="capabilities"> + <arg name="value" type="uint"/> + </event> + </interface> + +</protocol> diff --git a/src/Makefile.am b/src/Makefile.am index 15f44a5..b3c414c 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -4,8 +4,11 @@ noinst_LTLIBRARIES = libwayland-util.la include_HEADERS = \ wayland-util.h \ wayland-server-protocol.h \ + wayland-dmabuf-server-protocol.h \ wayland-server.h \ + wayland-dmabuf.h \ wayland-client-protocol.h \ + wayland-dmabuf-client-protocol.h \ wayland-client.h \ wayland-egl.h \ wayland-version.h @@ -22,14 +25,17 @@ libwayland_server_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt -lm libwayland_server_la_LDFLAGS = -version-info 1:0:1 libwayland_server_la_SOURCES = \ wayland-protocol.c \ + wayland-dmabuf-protocol.c \ wayland-server.c \ wayland-shm.c \ + wayland-dmabuf.c \ event-loop.c libwayland_client_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt -lm libwayland_client_la_LDFLAGS = -version-info 2:0:2 libwayland_client_la_SOURCES = \ wayland-protocol.c \ + wayland-dmabuf-protocol.c \ wayland-client.c pkgconfigdir = $(libdir)/pkgconfig @@ -65,7 +71,11 @@ endif BUILT_SOURCES = \ wayland-server-protocol.h \ wayland-client-protocol.h \ - wayland-protocol.c + wayland-protocol.c \ + wayland-dmabuf-server-protocol.h \ + wayland-dmabuf-client-protocol.h \ + wayland-dmabuf-protocol.c + CLEANFILES = $(BUILT_SOURCES) DISTCLEANFILES = wayland-version.h diff --git a/src/wayland-dmabuf.c b/src/wayland-dmabuf.c new file mode 100644 index 0000000..857d743 --- /dev/null +++ b/src/wayland-dmabuf.c @@ -0,0 +1,275 @@ +/* + * Copyright © 2011 Kristian Høgsberg + * Copyright © 2011 Benjamin Franzke + * + * 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 (including the next + * paragraph) 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. + * + * Authors: + * Kristian Høgsberg <krh(a)bitplanet.net> + * Benjamin Franzke <benjaminfranzke(a)googlemail.com> + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stddef.h> +#include <unistd.h> + +#include "wayland-server.h" +#include "wayland-dmabuf.h" +#include "wayland-dmabuf-server-protocol.h" + +struct wl_dmabuf { + struct wl_display *display; + struct wl_global *wl_dmabuf_global; + + void *user_data; + uint32_t flags; + + struct wl_dmabuf_callbacks *callbacks; + + struct wl_buffer_interface buffer_interface; +}; + +static void +destroy_buffer(struct wl_resource *resource) +{ + struct wl_dmabuf_buffer *buffer = resource->data; + struct wl_dmabuf *dmabuf = buffer->dmabuf; + + dmabuf->callbacks->release_buffer(dmabuf->user_data, buffer); + free(buffer); +} + +static void +buffer_destroy(struct wl_client *client, struct wl_resource *resource) +{ + wl_resource_destroy(resource); +} + +static const struct wl_buffer_interface dmabuf_buffer_interface = { + buffer_destroy +}; + +static void +create_buffer(struct wl_client *client, struct wl_resource *resource, + uint32_t id, int fd, + int32_t width, int32_t height, + uint32_t format, + int32_t offset0, int32_t stride0, + int32_t offset1, int32_t stride1, + int32_t offset2, int32_t stride2) +{ + struct wl_dmabuf *dmabuf = resource->data; + struct wl_dmabuf_buffer *buffer; + + buffer = calloc(1, sizeof *buffer); + if (buffer == NULL) { + wl_resource_post_no_memory(resource); + return; + } + + buffer->dmabuf = dmabuf; + buffer->width = width; + buffer->height = height; + buffer->format = format; + buffer->offset[0] = offset0; + buffer->stride[0] = stride0; + buffer->offset[1] = offset1; + buffer->stride[1] = stride1; + buffer->offset[2] = offset2; + buffer->stride[2] = stride2; + + dmabuf->callbacks->reference_buffer(dmabuf->user_data, fd, buffer); + if (buffer->driver_buffer == NULL) { + wl_resource_post_error(resource, + WL_DMABUF_ERROR_INVALID_FILE_DESCRIPTOR, + "invalid file descriptor"); + return; + } + + buffer->resource = + wl_resource_create(client, &wl_buffer_interface, 1, id); + if (!buffer->resource) { + wl_resource_post_no_memory(resource); + free(buffer); + return; + } + + wl_resource_set_implementation(buffer->resource, + (void (**)(void)) &dmabuf->buffer_interface, + buffer, destroy_buffer); +} + +static void +dmabuf_create_prime_buffer(struct wl_client *client, + struct wl_resource *resource, + uint32_t id, int fd, + int32_t width, int32_t height, uint32_t format, + int32_t offset0, int32_t stride0, + int32_t offset1, int32_t stride1, + int32_t offset2, int32_t stride2) +{ + create_buffer(client, resource, id, fd, width, height, format, + offset0, stride0, offset1, stride1, offset2, stride2); + close(fd); +} + +static const struct wl_dmabuf_interface dmabuf_interface = { + dmabuf_create_prime_buffer +}; + +static void +bind_dmabuf(struct wl_client *client, void *data, uint32_t version, uint32_t id) +{ + struct wl_dmabuf *dmabuf = data; + struct wl_resource *resource; + + resource = wl_resource_create(client, &wl_dmabuf_interface, 1, id); + if (!resource) { + wl_client_post_no_memory(client); + return; + } + + dmabuf = resource->data; + + if (dmabuf->callbacks->send_supported_formats) + dmabuf->callbacks->send_supported_formats(dmabuf->user_data, resource); + + if (dmabuf->callbacks->send_capabilities) + dmabuf->callbacks->send_capabilities(dmabuf->user_data, resource); +} + +WL_EXPORT struct wl_dmabuf * +wl_dmabuf_init(struct wl_display *display, struct wl_dmabuf_callbacks *callbacks, + void *user_data, uint32_t flags) +{ + struct wl_dmabuf *dmabuf; + + dmabuf = malloc(sizeof *dmabuf); + + dmabuf->display = display; + dmabuf->callbacks = callbacks; + dmabuf->user_data = user_data; + dmabuf->flags = flags; + + dmabuf->buffer_interface.destroy = buffer_destroy; + + dmabuf->wl_dmabuf_global = + wl_global_create(display, &wl_dmabuf_interface, 1, dmabuf, bind_dmabuf); + + return dmabuf; +} + +WL_EXPORT void +wl_dmabuf_uninit(struct wl_dmabuf *dmabuf) +{ + wl_global_destroy(dmabuf->wl_dmabuf_global); + + free(dmabuf); +} + +WL_EXPORT int +wl_buffer_is_dmabuf(struct wl_dmabuf_buffer *buffer) +{ + struct wl_dmabuf *dmabuf = buffer->dmabuf; + + return wl_resource_instance_of(buffer->resource, + &wl_buffer_interface, &dmabuf->buffer_interface); +} + +WL_EXPORT uint32_t +wl_dmabuf_buffer_get_format(struct wl_dmabuf_buffer *buffer) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return 0; + + return buffer->format; +} + +WL_EXPORT void * +wl_dmabuf_buffer_get_buffer(struct wl_dmabuf_buffer *buffer) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return NULL; + + return buffer->driver_buffer; +} + +WL_EXPORT int32_t +wl_dmabuf_buffer_get_stride(struct wl_dmabuf_buffer *buffer, int idx) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return 0; + + return buffer->stride[idx]; +} + +WL_EXPORT void * +wl_dmabuf_buffer_get_data(struct wl_dmabuf_buffer *buffer) +{ + struct wl_dmabuf *dmabuf; + + if (!wl_buffer_is_dmabuf(buffer)) + return NULL; + + dmabuf = buffer->dmabuf; + + if (dmabuf->callbacks->get_data) + return dmabuf->callbacks->get_data(dmabuf->user_data, buffer); + + return NULL; +} + +WL_EXPORT void +wl_dmabuf_buffer_put_data(struct wl_dmabuf_buffer *buffer) +{ + struct wl_dmabuf *dmabuf; + + if (!wl_buffer_is_dmabuf(buffer)) + return; + + dmabuf = buffer->dmabuf; + + if (dmabuf->callbacks->put_data) + dmabuf->callbacks->put_data(dmabuf->user_data, buffer); + + return; +} + + +WL_EXPORT int32_t +wl_dmabuf_buffer_get_width(struct wl_dmabuf_buffer *buffer) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return 0; + + return buffer->width; +} + +WL_EXPORT int32_t +wl_dmabuf_buffer_get_height(struct wl_dmabuf_buffer *buffer) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return 0; + + return buffer->height; +} diff --git a/src/wayland-dmabuf.h b/src/wayland-dmabuf.h new file mode 100644 index 0000000..5e3bb5c --- /dev/null +++ b/src/wayland-dmabuf.h @@ -0,0 +1,134 @@ +#ifndef WAYLAND_DMABUF_H +#define WAYLAND_DMABUF_H + +#include <wayland-server.h> + +#ifndef WL_DMABUF_FORMAT_ENUM +#define WL_DMABUF_FORMAT_ENUM + +enum wl_dmabuf_format { + WL_DMABUF_FORMAT_C8 = 0x20203843, + WL_DMABUF_FORMAT_RGB332 = 0x38424752, + WL_DMABUF_FORMAT_BGR233 = 0x38524742, + WL_DMABUF_FORMAT_XRGB4444 = 0x32315258, + WL_DMABUF_FORMAT_XBGR4444 = 0x32314258, + WL_DMABUF_FORMAT_RGBX4444 = 0x32315852, + WL_DMABUF_FORMAT_BGRX4444 = 0x32315842, + WL_DMABUF_FORMAT_ARGB4444 = 0x32315241, + WL_DMABUF_FORMAT_ABGR4444 = 0x32314241, + WL_DMABUF_FORMAT_RGBA4444 = 0x32314152, + WL_DMABUF_FORMAT_BGRA4444 = 0x32314142, + WL_DMABUF_FORMAT_XRGB1555 = 0x35315258, + WL_DMABUF_FORMAT_XBGR1555 = 0x35314258, + WL_DMABUF_FORMAT_RGBX5551 = 0x35315852, + WL_DMABUF_FORMAT_BGRX5551 = 0x35315842, + WL_DMABUF_FORMAT_ARGB1555 = 0x35315241, + WL_DMABUF_FORMAT_ABGR1555 = 0x35314241, + WL_DMABUF_FORMAT_RGBA5551 = 0x35314152, + WL_DMABUF_FORMAT_BGRA5551 = 0x35314142, + WL_DMABUF_FORMAT_RGB565 = 0x36314752, + WL_DMABUF_FORMAT_BGR565 = 0x36314742, + WL_DMABUF_FORMAT_RGB888 = 0x34324752, + WL_DMABUF_FORMAT_BGR888 = 0x34324742, + WL_DMABUF_FORMAT_XRGB8888 = 0x34325258, + WL_DMABUF_FORMAT_XBGR8888 = 0x34324258, + WL_DMABUF_FORMAT_RGBX8888 = 0x34325852, + WL_DMABUF_FORMAT_BGRX8888 = 0x34325842, + WL_DMABUF_FORMAT_ARGB8888 = 0x34325241, + WL_DMABUF_FORMAT_ABGR8888 = 0x34324241, + WL_DMABUF_FORMAT_RGBA8888 = 0x34324152, + WL_DMABUF_FORMAT_BGRA8888 = 0x34324142, + WL_DMABUF_FORMAT_XRGB2101010 = 0x30335258, + WL_DMABUF_FORMAT_XBGR2101010 = 0x30334258, + WL_DMABUF_FORMAT_RGBX1010102 = 0x30335852, + WL_DMABUF_FORMAT_BGRX1010102 = 0x30335842, + WL_DMABUF_FORMAT_ARGB2101010 = 0x30335241, + WL_DMABUF_FORMAT_ABGR2101010 = 0x30334241, + WL_DMABUF_FORMAT_RGBA1010102 = 0x30334152, + WL_DMABUF_FORMAT_BGRA1010102 = 0x30334142, + WL_DMABUF_FORMAT_YUYV = 0x56595559, + WL_DMABUF_FORMAT_YVYU = 0x55595659, + WL_DMABUF_FORMAT_UYVY = 0x59565955, + WL_DMABUF_FORMAT_VYUY = 0x59555956, + WL_DMABUF_FORMAT_AYUV = 0x56555941, + WL_DMABUF_FORMAT_NV12 = 0x3231564e, + WL_DMABUF_FORMAT_NV21 = 0x3132564e, + WL_DMABUF_FORMAT_NV16 = 0x3631564e, + WL_DMABUF_FORMAT_NV61 = 0x3136564e, + WL_DMABUF_FORMAT_YUV410 = 0x39565559, + WL_DMABUF_FORMAT_YVU410 = 0x39555659, + WL_DMABUF_FORMAT_YUV411 = 0x31315559, + WL_DMABUF_FORMAT_YVU411 = 0x31315659, + WL_DMABUF_FORMAT_YUV420 = 0x32315559, + WL_DMABUF_FORMAT_YVU420 = 0x32315659, + WL_DMABUF_FORMAT_YUV422 = 0x36315559, + WL_DMABUF_FORMAT_YVU422 = 0x36315659, + WL_DMABUF_FORMAT_YUV444 = 0x34325559, + WL_DMABUF_FORMAT_YVU444 = 0x34325659, +}; +#endif /* WL_DMABUF_FORMAT_ENUM */ + +struct wl_dmabuf; + +struct wl_dmabuf_buffer { + struct wl_resource *resource; + struct wl_dmabuf *dmabuf; + int32_t width, height; + uint32_t format; + int32_t offset[3]; + int32_t stride[3]; + void *driver_buffer; +}; + +/* struct wl_dmabuf_callbacks + * + * @reference_buffer: take a reference on buffer + * @release_buffer: release a reference on buffer + * @get_data: get access to buffer memory to use it + * @put_data: indicated that buffer memory is no more used + * @send_supported_formats: post the pixel format supported by the server + * @send_capabilities: post the dmabuf capabilities of the server + */ +struct wl_dmabuf_callbacks { + void (*reference_buffer)(void *user_data, int fd, + struct wl_dmabuf_buffer *buffer); + void (*release_buffer)(void *user_data, struct wl_dmabuf_buffer *buffer); + void* (*get_data)(void *user_data, struct wl_dmabuf_buffer *buffer); + void (*put_data)(void *user_data, struct wl_dmabuf_buffer *buffer); + void (*send_supported_formats)(void *user_data, struct wl_resource *resource); + void (*send_capabilities)(void *user_data, struct wl_resource *resource); +}; + +struct wl_dmabuf * +wl_dmabuf_init(struct wl_display *display, + struct wl_dmabuf_callbacks *callbacks, + void *user_data, uint32_t flags); + +void +wl_dmabuf_uninit(struct wl_dmabuf *dmabuf); + +int +wl_buffer_is_dmabuf(struct wl_dmabuf_buffer *buffer); + +uint32_t +wl_dmabuf_buffer_get_format(struct wl_dmabuf_buffer *buffer); + +void * +wl_dmabuf_buffer_get_buffer(struct wl_dmabuf_buffer *buffer); + +int32_t +wl_dmabuf_buffer_get_stride(struct wl_dmabuf_buffer *buffer, int idx); + +void * +wl_dmabuf_buffer_get_data(struct wl_dmabuf_buffer *buffer); + +void +wl_dmabuf_buffer_put_data(struct wl_dmabuf_buffer *buffer); + +int32_t +wl_dmabuf_buffer_get_width(struct wl_dmabuf_buffer *buffer); + +int32_t +wl_dmabuf_buffer_get_height(struct wl_dmabuf_buffer *buffer); + +#endif -- 1.7.9.5

10 years, 4 months

[PATCH] Add wl_dmabuf protocol

by benjamin.gaignard＠linaro.org

From: Benjamin Gaignard <benjamin.gaignard(a)linaro.org> This protocol is widely derivated of wl_drm protocol but without unneeded function like flink or authentification. It allow to use a dmabuf file descriptor in a wayland protocol which could be useful in case we don't have (or can't use) Mesa EGL. Signed-off-by: Benjamin Gaignard <benjamin.gaignard(a)linaro.org> --- protocol/Makefile.am | 6 +- protocol/wayland-dmabuf.xml | 134 ++++++++++++++++++++ src/Makefile.am | 12 +- src/wayland-dmabuf.c | 291 +++++++++++++++++++++++++++++++++++++++++++ src/wayland-dmabuf.h | 126 +++++++++++++++++++ 5 files changed, 565 insertions(+), 4 deletions(-) create mode 100644 protocol/wayland-dmabuf.xml create mode 100644 src/wayland-dmabuf.c create mode 100644 src/wayland-dmabuf.h diff --git a/protocol/Makefile.am b/protocol/Makefile.am index e8b6290..8c9499f 100644 --- a/protocol/Makefile.am +++ b/protocol/Makefile.am @@ -1,4 +1,4 @@ -dist_pkgdata_DATA = wayland.xml wayland.dtd +dist_pkgdata_DATA = wayland.xml wayland-dmabuf.xml wayland.dtd if HAVE_XMLLINT .PHONY: validate @@ -6,9 +6,9 @@ if HAVE_XMLLINT .%.xml.valid: %.xml $(AM_V_GEN)$(XMLLINT) --noout --dtdvalid $(srcdir)/wayland.dtd $^ > $@ -validate: .wayland.xml.valid +validate: .wayland.xml.valid .wayland-dmabuf.xml.valid all-local: validate -CLEANFILES = .wayland.xml.valid +CLEANFILES = .wayland.xml.valid .wayland-dmabuf.xml.valid endif diff --git a/protocol/wayland-dmabuf.xml b/protocol/wayland-dmabuf.xml new file mode 100644 index 0000000..9588514 --- /dev/null +++ b/protocol/wayland-dmabuf.xml @@ -0,0 +1,134 @@ +<?xml version="1.0" encoding="UTF-8"?> +<protocol name="dmabuf"> + + <copyright> + Copyright © 2008-2011 Kristian Høgsberg + Copyright © 2010-2011 Intel Corporation + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that\n the above copyright notice appear in + all copies and that both that copyright notice and this permission + notice appear in supporting documentation, and that the name of + the copyright holders not be used in advertising or publicity + pertaining to distribution of the software without specific, + written prior permission. The copyright holders make no + representations about the suitability of this software for any + purpose. It is provided "as is" without express or implied + warranty. + + THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, + ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF + THIS SOFTWARE. + </copyright> + +  + <interface name="wl_dmabuf" version="2"> + <enum name="error"> + <entry name="invalid_format" value="1"/> + <entry name="invalid_name" value="2"/> + </enum> + + <enum name="format"> +  + <entry name="c8" value="0x20203843"/> + <entry name="rgb332" value="0x38424752"/> + <entry name="bgr233" value="0x38524742"/> + <entry name="xrgb4444" value="0x32315258"/> + <entry name="xbgr4444" value="0x32314258"/> + <entry name="rgbx4444" value="0x32315852"/> + <entry name="bgrx4444" value="0x32315842"/> + <entry name="argb4444" value="0x32315241"/> + <entry name="abgr4444" value="0x32314241"/> + <entry name="rgba4444" value="0x32314152"/> + <entry name="bgra4444" value="0x32314142"/> + <entry name="xrgb1555" value="0x35315258"/> + <entry name="xbgr1555" value="0x35314258"/> + <entry name="rgbx5551" value="0x35315852"/> + <entry name="bgrx5551" value="0x35315842"/> + <entry name="argb1555" value="0x35315241"/> + <entry name="abgr1555" value="0x35314241"/> + <entry name="rgba5551" value="0x35314152"/> + <entry name="bgra5551" value="0x35314142"/> + <entry name="rgb565" value="0x36314752"/> + <entry name="bgr565" value="0x36314742"/> + <entry name="rgb888" value="0x34324752"/> + <entry name="bgr888" value="0x34324742"/> + <entry name="xrgb8888" value="0x34325258"/> + <entry name="xbgr8888" value="0x34324258"/> + <entry name="rgbx8888" value="0x34325852"/> + <entry name="bgrx8888" value="0x34325842"/> + <entry name="argb8888" value="0x34325241"/> + <entry name="abgr8888" value="0x34324241"/> + <entry name="rgba8888" value="0x34324152"/> + <entry name="bgra8888" value="0x34324142"/> + <entry name="xrgb2101010" value="0x30335258"/> + <entry name="xbgr2101010" value="0x30334258"/> + <entry name="rgbx1010102" value="0x30335852"/> + <entry name="bgrx1010102" value="0x30335842"/> + <entry name="argb2101010" value="0x30335241"/> + <entry name="abgr2101010" value="0x30334241"/> + <entry name="rgba1010102" value="0x30334152"/> + <entry name="bgra1010102" value="0x30334142"/> + <entry name="yuyv" value="0x56595559"/> + <entry name="yvyu" value="0x55595659"/> + <entry name="uyvy" value="0x59565955"/> + <entry name="vyuy" value="0x59555956"/> + <entry name="ayuv" value="0x56555941"/> + <entry name="nv12" value="0x3231564e"/> + <entry name="nv21" value="0x3132564e"/> + <entry name="nv16" value="0x3631564e"/> + <entry name="nv61" value="0x3136564e"/> + <entry name="yuv410" value="0x39565559"/> + <entry name="yvu410" value="0x39555659"/> + <entry name="yuv411" value="0x31315559"/> + <entry name="yvu411" value="0x31315659"/> + <entry name="yuv420" value="0x32315559"/> + <entry name="yvu420" value="0x32315659"/> + <entry name="yuv422" value="0x36315559"/> + <entry name="yvu422" value="0x36315659"/> + <entry name="yuv444" value="0x34325559"/> + <entry name="yvu444" value="0x34325659"/> + </enum> + +  + <request name="create_prime_buffer" since="2"> + <arg name="id" type="new_id" interface="wl_buffer"/> + <arg name="name" type="fd"/> + <arg name="width" type="int"/> + <arg name="height" type="int"/> + <arg name="format" type="uint"/> + <arg name="offset0" type="int"/> + <arg name="stride0" type="int"/> + <arg name="offset1" type="int"/> + <arg name="stride1" type="int"/> + <arg name="offset2" type="int"/> + <arg name="stride2" type="int"/> + </request> + + <event name="format"> + <arg name="format" type="uint"/> + </event> + + <enum name="capability" since="2"> + <description summary="wl_dmabuf capability bitmask"> + Bitmask of capabilities. + </description> + <entry name="prime" value="1" summary="wl_dmabuf prime available"/> + </enum> + + <event name="capabilities"> + <arg name="value" type="uint"/> + </event> + </interface> + +</protocol> diff --git a/src/Makefile.am b/src/Makefile.am index 15f44a5..b3c414c 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -4,8 +4,11 @@ noinst_LTLIBRARIES = libwayland-util.la include_HEADERS = \ wayland-util.h \ wayland-server-protocol.h \ + wayland-dmabuf-server-protocol.h \ wayland-server.h \ + wayland-dmabuf.h \ wayland-client-protocol.h \ + wayland-dmabuf-client-protocol.h \ wayland-client.h \ wayland-egl.h \ wayland-version.h @@ -22,14 +25,17 @@ libwayland_server_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt -lm libwayland_server_la_LDFLAGS = -version-info 1:0:1 libwayland_server_la_SOURCES = \ wayland-protocol.c \ + wayland-dmabuf-protocol.c \ wayland-server.c \ wayland-shm.c \ + wayland-dmabuf.c \ event-loop.c libwayland_client_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt -lm libwayland_client_la_LDFLAGS = -version-info 2:0:2 libwayland_client_la_SOURCES = \ wayland-protocol.c \ + wayland-dmabuf-protocol.c \ wayland-client.c pkgconfigdir = $(libdir)/pkgconfig @@ -65,7 +71,11 @@ endif BUILT_SOURCES = \ wayland-server-protocol.h \ wayland-client-protocol.h \ - wayland-protocol.c + wayland-protocol.c \ + wayland-dmabuf-server-protocol.h \ + wayland-dmabuf-client-protocol.h \ + wayland-dmabuf-protocol.c + CLEANFILES = $(BUILT_SOURCES) DISTCLEANFILES = wayland-version.h diff --git a/src/wayland-dmabuf.c b/src/wayland-dmabuf.c new file mode 100644 index 0000000..a075996 --- /dev/null +++ b/src/wayland-dmabuf.c @@ -0,0 +1,291 @@ +/* + * Copyright © 2011 Kristian Høgsberg + * Copyright © 2011 Benjamin Franzke + * + * 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 (including the next + * paragraph) 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. + * + * Authors: + * Kristian Høgsberg <krh(a)bitplanet.net> + * Benjamin Franzke <benjaminfranzke(a)googlemail.com> + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stddef.h> +#include <unistd.h> + +#include "wayland-server.h" +#include "wayland-dmabuf.h" +#include "wayland-dmabuf-server-protocol.h" + +#define MIN(x,y) (((x)<(y))?(x):(y)) + +struct wl_dmabuf { + struct wl_display *display; + struct wl_global *wl_dmabuf_global; + + void *user_data; + uint32_t flags; + + struct wl_dmabuf_callbacks *callbacks; + + struct wl_buffer_interface buffer_interface; +}; + +static void +destroy_buffer(struct wl_resource *resource) +{ + struct wl_dmabuf_buffer *buffer = resource->data; + struct wl_dmabuf *dmabuf = buffer->dmabuf; + + dmabuf->callbacks->release_buffer(dmabuf->user_data, buffer); + free(buffer); +} + +static void +buffer_destroy(struct wl_client *client, struct wl_resource *resource) +{ + wl_resource_destroy(resource); +} + +static const struct wl_buffer_interface dmabuf_buffer_interface = { + buffer_destroy +}; + +static void +create_buffer(struct wl_client *client, struct wl_resource *resource, + uint32_t id, uint32_t name, int fd, + int32_t width, int32_t height, + uint32_t format, + int32_t offset0, int32_t stride0, + int32_t offset1, int32_t stride1, + int32_t offset2, int32_t stride2) +{ + struct wl_dmabuf *dmabuf = resource->data; + struct wl_dmabuf_buffer *buffer; + + buffer = calloc(1, sizeof *buffer); + if (buffer == NULL) { + wl_resource_post_no_memory(resource); + return; + } + + buffer->dmabuf = dmabuf; + buffer->width = width; + buffer->height = height; + buffer->format = format; + buffer->offset[0] = offset0; + buffer->stride[0] = stride0; + buffer->offset[1] = offset1; + buffer->stride[1] = stride1; + buffer->offset[2] = offset2; + buffer->stride[2] = stride2; + + dmabuf->callbacks->reference_buffer(dmabuf->user_data, name, fd, buffer); + if (buffer->driver_buffer == NULL) { + wl_resource_post_error(resource, + WL_DMABUF_ERROR_INVALID_NAME, + "invalid name"); + return; + } + + buffer->resource = + wl_resource_create(client, &wl_buffer_interface, 1, id); + if (!buffer->resource) { + wl_resource_post_no_memory(resource); + free(buffer); + return; + } + + wl_resource_set_implementation(buffer->resource, + (void (**)(void)) &dmabuf->buffer_interface, + buffer, destroy_buffer); +} + +static void +dmabuf_create_prime_buffer(struct wl_client *client, + struct wl_resource *resource, + uint32_t id, int fd, + int32_t width, int32_t height, uint32_t format, + int32_t offset0, int32_t stride0, + int32_t offset1, int32_t stride1, + int32_t offset2, int32_t stride2) +{ + create_buffer(client, resource, id, 0, fd, width, height, format, + offset0, stride0, offset1, stride1, offset2, stride2); + close(fd); +} + +static const struct wl_dmabuf_interface dmabuf_interface = { + dmabuf_create_prime_buffer +}; + +static void +bind_dmabuf(struct wl_client *client, void *data, uint32_t version, uint32_t id) +{ + struct wl_dmabuf *dmabuf = data; + struct wl_resource *resource; + uint32_t capabilities; + + resource = wl_resource_create(client, &wl_dmabuf_interface, + MIN(version, 2), id); + if (!resource) { + wl_client_post_no_memory(client); + return; + } + + wl_resource_set_implementation(resource, &dmabuf_interface, data, NULL); + + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_ARGB8888); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_XRGB8888); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_YUV410); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_YUV411); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_YUV420); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_YUV422); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_YUV444); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_NV12); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_NV16); + wl_resource_post_event(resource, WL_DMABUF_FORMAT, WL_DMABUF_FORMAT_YUYV); + + capabilities = 0; + if (dmabuf->flags & WAYLAND_DMABUF_PRIME) + capabilities |= WL_DMABUF_CAPABILITY_PRIME; + + if (version >= 2) + wl_resource_post_event(resource, WL_DMABUF_CAPABILITIES, capabilities); +} + +WL_EXPORT struct wl_dmabuf * +wl_dmabuf_init(struct wl_display *display, struct wl_dmabuf_callbacks *callbacks, + void *user_data, uint32_t flags) +{ + struct wl_dmabuf *dmabuf; + + dmabuf = malloc(sizeof *dmabuf); + + dmabuf->display = display; + dmabuf->callbacks = callbacks; + dmabuf->user_data = user_data; + dmabuf->flags = flags; + + dmabuf->buffer_interface.destroy = buffer_destroy; + + dmabuf->wl_dmabuf_global = + wl_global_create(display, &wl_dmabuf_interface, 2, dmabuf, bind_dmabuf); + + return dmabuf; +} + +WL_EXPORT void +wl_dmabuf_uninit(struct wl_dmabuf *dmabuf) +{ + wl_global_destroy(dmabuf->wl_dmabuf_global); + + free(dmabuf); +} + +WL_EXPORT int +wl_buffer_is_dmabuf(struct wl_dmabuf_buffer *buffer) +{ + struct wl_dmabuf *dmabuf = buffer->dmabuf; + + return wl_resource_instance_of(buffer->resource, + &wl_buffer_interface, &dmabuf->buffer_interface); +} + +WL_EXPORT uint32_t +wl_dmabuf_buffer_get_format(struct wl_dmabuf_buffer *buffer) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return 0; + + return buffer->format; +} + +WL_EXPORT void * +wl_dmabuf_buffer_get_buffer(struct wl_dmabuf_buffer *buffer) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return NULL; + + return buffer->driver_buffer; +} + +WL_EXPORT int32_t +wl_dmabuf_buffer_get_stride(struct wl_dmabuf_buffer *buffer, int idx) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return 0; + + return buffer->stride[idx]; +} + +WL_EXPORT void * +wl_dmabuf_buffer_get_data(struct wl_dmabuf_buffer *buffer) +{ + struct wl_dmabuf *dmabuf; + + if (!wl_buffer_is_dmabuf(buffer)) + return NULL; + + dmabuf = buffer->dmabuf; + + if (dmabuf->callbacks->get_data) + return dmabuf->callbacks->get_data(dmabuf->user_data, buffer); + + return NULL; +} + +WL_EXPORT void +wl_dmabuf_buffer_put_data(struct wl_dmabuf_buffer *buffer) +{ + struct wl_dmabuf *dmabuf; + + if (!wl_buffer_is_dmabuf(buffer)) + return; + + dmabuf = buffer->dmabuf; + + if (dmabuf->callbacks->put_data) + dmabuf->callbacks->put_data(dmabuf->user_data, buffer); + + return; +} + + +WL_EXPORT int32_t +wl_dmabuf_buffer_get_width(struct wl_dmabuf_buffer *buffer) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return 0; + + return buffer->width; +} + +WL_EXPORT int32_t +wl_dmabuf_buffer_get_height(struct wl_dmabuf_buffer *buffer) +{ + if (!wl_buffer_is_dmabuf(buffer)) + return 0; + + return buffer->height; +} diff --git a/src/wayland-dmabuf.h b/src/wayland-dmabuf.h new file mode 100644 index 0000000..9e80beb --- /dev/null +++ b/src/wayland-dmabuf.h @@ -0,0 +1,126 @@ +#ifndef WAYLAND_DMABUF_H +#define WAYLAND_DMABUF_H + +#include <wayland-server.h> + +#ifndef WL_DMABUF_FORMAT_ENUM +#define WL_DMABUF_FORMAT_ENUM + +enum wl_dmabuf_format { + WL_DMABUF_FORMAT_C8 = 0x20203843, + WL_DMABUF_FORMAT_RGB332 = 0x38424752, + WL_DMABUF_FORMAT_BGR233 = 0x38524742, + WL_DMABUF_FORMAT_XRGB4444 = 0x32315258, + WL_DMABUF_FORMAT_XBGR4444 = 0x32314258, + WL_DMABUF_FORMAT_RGBX4444 = 0x32315852, + WL_DMABUF_FORMAT_BGRX4444 = 0x32315842, + WL_DMABUF_FORMAT_ARGB4444 = 0x32315241, + WL_DMABUF_FORMAT_ABGR4444 = 0x32314241, + WL_DMABUF_FORMAT_RGBA4444 = 0x32314152, + WL_DMABUF_FORMAT_BGRA4444 = 0x32314142, + WL_DMABUF_FORMAT_XRGB1555 = 0x35315258, + WL_DMABUF_FORMAT_XBGR1555 = 0x35314258, + WL_DMABUF_FORMAT_RGBX5551 = 0x35315852, + WL_DMABUF_FORMAT_BGRX5551 = 0x35315842, + WL_DMABUF_FORMAT_ARGB1555 = 0x35315241, + WL_DMABUF_FORMAT_ABGR1555 = 0x35314241, + WL_DMABUF_FORMAT_RGBA5551 = 0x35314152, + WL_DMABUF_FORMAT_BGRA5551 = 0x35314142, + WL_DMABUF_FORMAT_RGB565 = 0x36314752, + WL_DMABUF_FORMAT_BGR565 = 0x36314742, + WL_DMABUF_FORMAT_RGB888 = 0x34324752, + WL_DMABUF_FORMAT_BGR888 = 0x34324742, + WL_DMABUF_FORMAT_XRGB8888 = 0x34325258, + WL_DMABUF_FORMAT_XBGR8888 = 0x34324258, + WL_DMABUF_FORMAT_RGBX8888 = 0x34325852, + WL_DMABUF_FORMAT_BGRX8888 = 0x34325842, + WL_DMABUF_FORMAT_ARGB8888 = 0x34325241, + WL_DMABUF_FORMAT_ABGR8888 = 0x34324241, + WL_DMABUF_FORMAT_RGBA8888 = 0x34324152, + WL_DMABUF_FORMAT_BGRA8888 = 0x34324142, + WL_DMABUF_FORMAT_XRGB2101010 = 0x30335258, + WL_DMABUF_FORMAT_XBGR2101010 = 0x30334258, + WL_DMABUF_FORMAT_RGBX1010102 = 0x30335852, + WL_DMABUF_FORMAT_BGRX1010102 = 0x30335842, + WL_DMABUF_FORMAT_ARGB2101010 = 0x30335241, + WL_DMABUF_FORMAT_ABGR2101010 = 0x30334241, + WL_DMABUF_FORMAT_RGBA1010102 = 0x30334152, + WL_DMABUF_FORMAT_BGRA1010102 = 0x30334142, + WL_DMABUF_FORMAT_YUYV = 0x56595559, + WL_DMABUF_FORMAT_YVYU = 0x55595659, + WL_DMABUF_FORMAT_UYVY = 0x59565955, + WL_DMABUF_FORMAT_VYUY = 0x59555956, + WL_DMABUF_FORMAT_AYUV = 0x56555941, + WL_DMABUF_FORMAT_NV12 = 0x3231564e, + WL_DMABUF_FORMAT_NV21 = 0x3132564e, + WL_DMABUF_FORMAT_NV16 = 0x3631564e, + WL_DMABUF_FORMAT_NV61 = 0x3136564e, + WL_DMABUF_FORMAT_YUV410 = 0x39565559, + WL_DMABUF_FORMAT_YVU410 = 0x39555659, + WL_DMABUF_FORMAT_YUV411 = 0x31315559, + WL_DMABUF_FORMAT_YVU411 = 0x31315659, + WL_DMABUF_FORMAT_YUV420 = 0x32315559, + WL_DMABUF_FORMAT_YVU420 = 0x32315659, + WL_DMABUF_FORMAT_YUV422 = 0x36315559, + WL_DMABUF_FORMAT_YVU422 = 0x36315659, + WL_DMABUF_FORMAT_YUV444 = 0x34325559, + WL_DMABUF_FORMAT_YVU444 = 0x34325659, +}; +#endif /* WL_DMABUF_FORMAT_ENUM */ + +struct wl_dmabuf; + +struct wl_dmabuf_buffer { + struct wl_resource *resource; + struct wl_dmabuf *dmabuf; + int32_t width, height; + uint32_t format; + int32_t offset[3]; + int32_t stride[3]; + void *driver_buffer; +}; + +struct wl_dmabuf_callbacks { + void (*reference_buffer)(void *user_data, uint32_t name, int fd, + struct wl_dmabuf_buffer *buffer); + + void (*release_buffer)(void *user_data, struct wl_dmabuf_buffer *buffer); + void* (*get_data)(void *user_data, struct wl_dmabuf_buffer *buffer); + void (*put_data)(void *user_data, struct wl_dmabuf_buffer *buffer); +}; + +enum { WAYLAND_DMABUF_PRIME = 0x01 }; + +struct wl_dmabuf * +wl_dmabuf_init(struct wl_display *display, + struct wl_dmabuf_callbacks *callbacks, + void *user_data, uint32_t flags); + +void +wl_dmabuf_uninit(struct wl_dmabuf *dmabuf); + +int +wl_buffer_is_dmabuf(struct wl_dmabuf_buffer *buffer); + +uint32_t +wl_dmabuf_buffer_get_format(struct wl_dmabuf_buffer *buffer); + +void * +wl_dmabuf_buffer_get_buffer(struct wl_dmabuf_buffer *buffer); + +int32_t +wl_dmabuf_buffer_get_stride(struct wl_dmabuf_buffer *buffer, int idx); + +void * +wl_dmabuf_buffer_get_data(struct wl_dmabuf_buffer *buffer); + +void +wl_dmabuf_buffer_put_data(struct wl_dmabuf_buffer *buffer); + +int32_t +wl_dmabuf_buffer_get_width(struct wl_dmabuf_buffer *buffer); + +int32_t +wl_dmabuf_buffer_get_height(struct wl_dmabuf_buffer *buffer); + +#endif -- 1.7.9.5

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Linaro-mm-sig December 2013