From: Daniel Stone <daniels@xxxxxxxxxxxxx>
Add a wrapper around the getfb2 ioctl, which returns extended
framebuffer information mirroring addfb2, including multiple planes and
modifiers.
Changes since v7:
- add new symbols to core-symbol.txt (Eric Engestrom)
Changes since v5:
- style change
Changes since v4:
- Set fb_id at init instead of memclear() and set (Eric Engestrom)
Changes since v3:
- remove unnecessary null check in drmModeFreeFB2 (Daniel Stone)
Changes since v2:
- getfb2 ioctl has been merged upstream
- sync include/drm/drm.h in a seperate patch
Changes since v1:
- functions should be drm_public
- modifier should be 64 bits
- update ioctl number
Signed-off-by: Juston Li <juston.li@xxxxxxxxx>
Signed-off-by: Daniel Stone <daniels@xxxxxxxxxxxxx>
Reviewed-by: Eric Engestrom <eric@xxxxxxxxxxxx>
---
core-symbols.txt | 2 ++
xf86drmMode.c | 35 +++++++++++++++++++++++++++++++++++
xf86drmMode.h | 15 +++++++++++++++
3 files changed, 52 insertions(+)
diff --git a/core-symbols.txt b/core-symbols.txt
index a62e01a069d3..1ff4ecaaf6ab 100644
--- a/core-symbols.txt
+++ b/core-symbols.txt
@@ -112,6 +112,7 @@ drmModeFreeConnector
drmModeFreeCrtc
drmModeFreeEncoder
drmModeFreeFB
+drmModeFreeFB2
drmModeFreeModeInfo
drmModeFreeObjectProperties
drmModeFreePlane
@@ -124,6 +125,7 @@ drmModeGetConnectorCurrent
drmModeGetCrtc
drmModeGetEncoder
drmModeGetFB
+drmModeGetFB2
drmModeGetLease
drmModeGetPlane
drmModeGetPlaneResources
diff --git a/xf86drmMode.c b/xf86drmMode.c
index 0cf7992c6e9a..2399e8ecea6f 100644
--- a/xf86drmMode.c
+++ b/xf86drmMode.c
@@ -1594,3 +1594,38 @@ drmModeRevokeLease(int fd, uint32_t lessee_id)
return 0;
return -errno;
}
+
+drm_public drmModeFB2Ptr
+drmModeGetFB2(int fd, uint32_t fb_id)
+{
+ struct drm_mode_fb_cmd2 get = {
+ .fb_id = fb_id,
+ };
+ drmModeFB2Ptr ret;
+ int err;
+
+ err = DRM_IOCTL(fd, DRM_IOCTL_MODE_GETFB2, &get);
+ if (err != 0)
+ return NULL;
+
+ ret = drmMalloc(sizeof(drmModeFB2));
+ if (!ret)
+ return NULL;
+
+ ret->fb_id = fb_id;
+ ret->width = get.width;
+ ret->height = get.height;
+ ret->pixel_format = get.pixel_format;
+ ret->flags = get.flags;
+ ret->modifier = get.modifier[0];
+ memcpy(ret->handles, get.handles, sizeof(uint32_t) * 4);
+ memcpy(ret->pitches, get.pitches, sizeof(uint32_t) * 4);
+ memcpy(ret->offsets, get.offsets, sizeof(uint32_t) * 4);
+
+ return ret;
+}
+
+drm_public void drmModeFreeFB2(drmModeFB2Ptr ptr)
+{
+ drmFree(ptr);
+}
diff --git a/xf86drmMode.h b/xf86drmMode.h
index 159a39937240..fc0bbd8dcb67 100644
--- a/xf86drmMode.h
+++ b/xf86drmMode.h
@@ -225,6 +225,19 @@ typedef struct _drmModeFB {
uint32_t handle;
} drmModeFB, *drmModeFBPtr;
+typedef struct _drmModeFB2 {
+ uint32_t fb_id;
+ uint32_t width, height;
+ uint32_t pixel_format; /* fourcc code from drm_fourcc.h */
+ uint64_t modifier; /* applies to all buffers */
+ uint32_t flags;
+
+ /* per-plane GEM handle; may be duplicate entries for multiple planes */
+ uint32_t handles[4];
+ uint32_t pitches[4]; /* bytes */
+ uint32_t offsets[4]; /* bytes */
+} drmModeFB2, *drmModeFB2Ptr;
+
typedef struct drm_clip_rect drmModeClip, *drmModeClipPtr;
typedef struct _drmModePropertyBlob {
@@ -343,6 +356,7 @@ typedef struct _drmModePlaneRes {
extern void drmModeFreeModeInfo( drmModeModeInfoPtr ptr );
extern void drmModeFreeResources( drmModeResPtr ptr );
extern void drmModeFreeFB( drmModeFBPtr ptr );
+extern void drmModeFreeFB2( drmModeFB2Ptr ptr );
extern void drmModeFreeCrtc( drmModeCrtcPtr ptr );
extern void drmModeFreeConnector( drmModeConnectorPtr ptr );
extern void drmModeFreeEncoder( drmModeEncoderPtr ptr );
@@ -362,6 +376,7 @@ extern drmModeResPtr drmModeGetResources(int fd);
* Retrieve information about framebuffer bufferId
*/
extern drmModeFBPtr drmModeGetFB(int fd, uint32_t bufferId);
+extern drmModeFB2Ptr drmModeGetFB2(int fd, uint32_t bufferId);
/**
* Creates a new framebuffer with an buffer object as its scanout buffer.
--
2.21.1
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