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authorKristian Høgsberg <krh@bitplanet.net>2012-07-13 11:19:24 -0400
committerKristian Høgsberg <krh@bitplanet.net>2012-07-16 16:29:15 -0400
commit44f066b9ffb7749e872c9cc44ab4d6e2973c2372 (patch)
tree9c2a9bd9a77bfc6f67c37117ba268cba091032aa /src/gbm
parent43ccded1e17147c0b705152add11875b560b1c43 (diff)
gbm: Add new gbm_bo_import entry point
This generalizes and replaces gbm_bo_create_for_egl_image. gbm_bo_import will create a gbm_bo from either an EGLImage or a struct wl_buffer.
Diffstat (limited to 'src/gbm')
-rw-r--r--src/gbm/Makefile.am4
-rw-r--r--src/gbm/backends/dri/gbm_dri.c90
-rw-r--r--src/gbm/main/gbm.c34
-rw-r--r--src/gbm/main/gbm.h9
-rw-r--r--src/gbm/main/gbmint.h6
5 files changed, 95 insertions, 48 deletions
diff --git a/src/gbm/Makefile.am b/src/gbm/Makefile.am
index dede5bc1069..5ca28395a17 100644
--- a/src/gbm/Makefile.am
+++ b/src/gbm/Makefile.am
@@ -20,6 +20,10 @@ libgbm_la_SOURCES = \
libgbm_la_LDFLAGS = -version-info 1:0
libgbm_la_LIBADD = $(LIBUDEV_LIBS) $(DLOPEN_LIBS)
+if HAVE_EGL_PLATFORM_WAYLAND
+AM_CPPFLAGS = -DHAVE_WAYLAND_PLATFORM
+endif
+
if HAVE_DRI
noinst_LTLIBRARIES = libgbm_dri.la
libgbm_dri_la_SOURCES = \
diff --git a/src/gbm/backends/dri/gbm_dri.c b/src/gbm/backends/dri/gbm_dri.c
index e5ddfb6ce69..3aa0616fe92 100644
--- a/src/gbm/backends/dri/gbm_dri.c
+++ b/src/gbm/backends/dri/gbm_dri.c
@@ -43,6 +43,11 @@
#include "gbmint.h"
+/* For importing wl_buffer */
+#if HAVE_WAYLAND_PLATFORM
+#include "../../../egl/wayland/wayland-drm/wayland-drm.h"
+#endif
+
static __DRIimage *
dri_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
{
@@ -340,36 +345,76 @@ gbm_dri_to_gbm_format(uint32_t dri_format)
}
static struct gbm_bo *
-gbm_dri_bo_create_from_egl_image(struct gbm_device *gbm,
- void *egl_dpy, void *egl_img,
- uint32_t width, uint32_t height,
- uint32_t usage)
+gbm_dri_bo_import(struct gbm_device *gbm,
+ uint32_t type, void *buffer, uint32_t usage)
{
struct gbm_dri_device *dri = gbm_dri_device(gbm);
struct gbm_dri_bo *bo;
- int dri_format;
+ __DRIimage *image;
unsigned dri_use = 0;
+ int dri_format, width, height, gbm_format, stride, cpp, offset;
+
+ switch (type) {
+#if HAVE_WAYLAND_PLATFORM
+ case GBM_BO_IMPORT_WL_BUFFER:
+ {
+ struct wl_drm_buffer *wb = (struct wl_drm_buffer *) buffer;
+
+ image = wb->driver_buffer;
+ stride = wb->stride[0];
+ offset = wb->offset[0];
+ cpp = 4;
+ switch (wb->format) {
+ case WL_DRM_FORMAT_XRGB8888:
+ dri_format = __DRI_IMAGE_FORMAT_XRGB8888;
+ gbm_format = GBM_FORMAT_XRGB8888;
+ break;
+ case WL_DRM_FORMAT_ARGB8888:
+ dri_format = __DRI_IMAGE_FORMAT_ARGB8888;
+ gbm_format = GBM_FORMAT_ARGB8888;
+ break;
+ case WL_DRM_FORMAT_YUYV:
+ dri_format = __DRI_IMAGE_FORMAT_ARGB8888;
+ gbm_format = GBM_FORMAT_YUYV;
+ break;
+ default:
+ return NULL;
+ }
+ break;
+ }
+#endif
- (void) egl_dpy;
+ case GBM_BO_IMPORT_EGL_IMAGE:
+ {
+ if (dri->lookup_image == NULL)
+ return NULL;
+
+ image = dri->lookup_image(dri->screen, buffer, dri->lookup_user_data);
+ dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_FORMAT, &dri_format);
+ gbm_format = gbm_dri_to_gbm_format(dri_format);
+ dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
+ offset = 0;
+ cpp = 4;
+ break;
+ }
- if (dri->lookup_image == NULL)
+ default:
return NULL;
+ }
+
bo = calloc(1, sizeof *bo);
if (bo == NULL)
return NULL;
- bo->base.base.gbm = gbm;
- bo->base.base.width = width;
- bo->base.base.height = height;
+ dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_WIDTH, &width);
+ dri->image->queryImage(image, __DRI_IMAGE_ATTRIB_HEIGHT, &height);
+
+ bo->image = dri->image->createSubImage(image,
+ width, height, dri_format,
+ offset, stride / cpp, NULL);
- __DRIimage *tmp = dri->lookup_image(dri->screen, egl_img,
- dri->lookup_user_data);
- bo->image = dri->image->dupImage(tmp, bo);
- if (bo->image == NULL)
- return NULL;
-
if (usage & GBM_BO_USE_SCANOUT)
dri_use |= __DRI_IMAGE_USE_SCANOUT;
if (usage & GBM_BO_USE_CURSOR_64X64)
@@ -380,14 +425,13 @@ gbm_dri_bo_create_from_egl_image(struct gbm_device *gbm,
return NULL;
}
+ bo->base.base.gbm = gbm;
+ bo->base.base.width = width;
+ bo->base.base.height = height;
+ bo->base.base.pitch = stride;
+ bo->base.base.format = gbm_format;
dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HANDLE,
&bo->base.base.handle.s32);
- dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_STRIDE,
- (int *) &bo->base.base.pitch);
- dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_FORMAT,
- &dri_format);
-
- bo->base.base.format = gbm_dri_to_gbm_format(dri_format);
return &bo->base.base;
}
@@ -506,7 +550,7 @@ dri_device_create(int fd)
dri->base.base.fd = fd;
dri->base.base.bo_create = gbm_dri_bo_create;
- dri->base.base.bo_create_from_egl_image = gbm_dri_bo_create_from_egl_image;
+ dri->base.base.bo_import = gbm_dri_bo_import;
dri->base.base.is_format_supported = gbm_dri_is_format_supported;
dri->base.base.bo_write = gbm_dri_bo_write;
dri->base.base.bo_destroy = gbm_dri_bo_destroy;
diff --git a/src/gbm/main/gbm.c b/src/gbm/main/gbm.c
index 3994f86aafc..2a830336d45 100644
--- a/src/gbm/main/gbm.c
+++ b/src/gbm/main/gbm.c
@@ -337,34 +337,34 @@ gbm_bo_create(struct gbm_device *gbm,
}
/**
- * Create a buffer object representing the contents of an EGLImage
+ * Create a gbm buffer object from an 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
+ * argument:
+ *
+ * GBM_BO_IMPORT_WL_BUFFER
+ * GBM_BO_IMPORT_EGL_IMAGE
+ *
+ * The 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 egl_dpy The EGLDisplay on which the EGLImage was created
- * \param egl_image The EGLImage to create the buffer from
- * \param width The width to use in the creation of the buffer object
- * \param height The height to use in the creation of the buffer object
+ * \param gbm The type of object we're importing
+ * \param gbm 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.
*
* \sa enum gbm_bo_flags for the list of usage flags
- *
- * \note The expectation is that this function will use an efficient method
- * for making the contents of the EGLImage available as a buffer object.
*/
GBM_EXPORT struct gbm_bo *
-gbm_bo_create_from_egl_image(struct gbm_device *gbm,
- void *egl_dpy, void *egl_image,
- uint32_t width, uint32_t height,
- uint32_t usage)
+gbm_bo_import(struct gbm_device *gbm,
+ uint32_t type, void *buffer, uint32_t usage)
{
- if (width == 0 || height == 0)
- return NULL;
-
- return gbm->bo_create_from_egl_image(gbm, egl_dpy, egl_image,
- width, height, usage);
+ return gbm->bo_import(gbm, type, buffer, usage);
}
/**
diff --git a/src/gbm/main/gbm.h b/src/gbm/main/gbm.h
index af5dc5aee8c..52afdf7fd13 100644
--- a/src/gbm/main/gbm.h
+++ b/src/gbm/main/gbm.h
@@ -230,11 +230,12 @@ gbm_bo_create(struct gbm_device *gbm,
uint32_t width, uint32_t height,
uint32_t format, uint32_t flags);
+#define GBM_BO_IMPORT_WL_BUFFER 0x5501
+#define GBM_BO_IMPORT_EGL_IMAGE 0x5502
+
struct gbm_bo *
-gbm_bo_create_from_egl_image(struct gbm_device *gbm,
- void *egl_dpy, void *egl_img,
- uint32_t width, uint32_t height,
- uint32_t usage);
+gbm_bo_import(struct gbm_device *gbm, uint32_t type,
+ void *buffer, uint32_t usage);
uint32_t
gbm_bo_get_width(struct gbm_bo *bo);
diff --git a/src/gbm/main/gbmint.h b/src/gbm/main/gbmint.h
index 8eb8671aeb2..ab23f0af073 100644
--- a/src/gbm/main/gbmint.h
+++ b/src/gbm/main/gbmint.h
@@ -66,10 +66,8 @@ struct gbm_device {
uint32_t width, uint32_t height,
uint32_t format,
uint32_t usage);
- struct gbm_bo *(*bo_create_from_egl_image)(struct gbm_device *gbm,
- void *egl_dpy, void *egl_img,
- uint32_t width, uint32_t height,
- uint32_t usage);
+ struct gbm_bo *(*bo_import)(struct gbm_device *gbm, uint32_t type,
+ void *buffer, uint32_t usage);
int (*bo_write)(struct gbm_bo *bo, const void *buf, size_t data);
void (*bo_destroy)(struct gbm_bo *bo);