This patch originally had i965 specific code and was named:
commit 61cd3c52b868cf8cb90b06e53a382a921eb42754
Author: Ben Widawsky <b...@bwidawsk.net>
Date: Thu Oct 20 18:21:24 2016 -0700
gbm: Get modifiers from DRI
To accomplish this, two new query tokens are added to the extension:
__DRI_IMAGE_ATTRIB_MODIFIER_UPPER
__DRI_IMAGE_ATTRIB_MODIFIER_LOWER
The query extension only supported 32b queries, and modifiers are 64b,
so we needed two of them.
NOTE: The extension version is still set to 13, so none of this will
actually be called.
Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
---
src/gbm/backends/dri/gbm_dri.c | 36 ++++++++++++++++++++++++++++++++++++
src/gbm/gbm-symbols-check | 1 +
src/gbm/main/gbm.c | 19 +++++++++++++++++++
src/gbm/main/gbm.h | 3 +++
src/gbm/main/gbmint.h | 1 +
5 files changed, 60 insertions(+)
diff --git a/src/gbm/backends/dri/gbm_dri.c b/src/gbm/backends/dri/gbm_dri.c
index d45ba94080..2c467127c2 100644
--- a/src/gbm/backends/dri/gbm_dri.c
+++ b/src/gbm/backends/dri/gbm_dri.c
@@ -39,6 +39,7 @@
#include <unistd.h>
#include <dlfcn.h>
#include <xf86drm.h>
+#include <drm_fourcc.h>
#include <GL/gl.h> /* dri_interface needs GL types */
#include <GL/internal/dri_interface.h>
@@ -53,6 +54,14 @@
#include "../../../egl/wayland/wayland-drm/wayland-drm.h"
#endif
+#ifndef DRM_FORMAT_MOD_INVALID
+#define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
+#endif
+
+#ifndef DRM_FORMAT_MOD_LINEAR
+#define DRM_FORMAT_MOD_LINEAR 0
+#endif
+
static __DRIimage *
dri_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
{
@@ -735,6 +744,32 @@ gbm_dri_bo_get_offset(struct gbm_bo *_bo, int plane)
return (uint32_t)offset;
}
+static uint64_t
+gbm_dri_bo_get_modifier(struct gbm_bo *_bo)
+{
+ struct gbm_dri_device *dri = gbm_dri_device(_bo->gbm);
+ struct gbm_dri_bo *bo = gbm_dri_bo(_bo);
+
+ if (!dri->image || dri->image->base.version < 14) {
+ errno = ENOSYS;
+ return DRM_FORMAT_MOD_INVALID;
+ }
+
+ /* Dumb buffers have no modifiers */
+ if (!bo->image)
+ return DRM_FORMAT_MOD_LINEAR;
+
+ uint64_t ret = 0;
+ int mod;
+ dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_MODIFIER_UPPER, &mod);
+ ret = (uint64_t)mod << 32;
+
+ dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_MODIFIER_LOWER, &mod);
+ ret |= mod;
+
+ return ret;
+}
+
static void
gbm_dri_bo_destroy(struct gbm_bo *_bo)
{
@@ -1259,6 +1294,7 @@ dri_device_create(int fd)
dri->base.base.bo_get_handle = gbm_dri_bo_get_handle_for_plane;
dri->base.base.bo_get_stride = gbm_dri_bo_get_stride;
dri->base.base.bo_get_offset = gbm_dri_bo_get_offset;
+ dri->base.base.bo_get_modifier = gbm_dri_bo_get_modifier;
dri->base.base.bo_destroy = gbm_dri_bo_destroy;
dri->base.base.destroy = dri_destroy;
dri->base.base.surface_create = gbm_dri_surface_create;
diff --git a/src/gbm/gbm-symbols-check b/src/gbm/gbm-symbols-check
index c137c6cd93..c72fb66b03 100755
--- a/src/gbm/gbm-symbols-check
+++ b/src/gbm/gbm-symbols-check
@@ -23,6 +23,7 @@ gbm_bo_get_handle
gbm_bo_get_fd
gbm_bo_get_plane_count
gbm_bo_get_handle_for_plane
+gbm_bo_get_modifier
gbm_bo_write
gbm_bo_set_user_data
gbm_bo_get_user_data
diff --git a/src/gbm/main/gbm.c b/src/gbm/main/gbm.c
index 0fb62657ed..7ceaccdc21 100644
--- a/src/gbm/main/gbm.c
+++ b/src/gbm/main/gbm.c
@@ -280,6 +280,25 @@ 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,
diff --git a/src/gbm/main/gbm.h b/src/gbm/main/gbm.h
index 5f588dab58..a774b50951 100644
--- a/src/gbm/main/gbm.h
+++ b/src/gbm/main/gbm.h
@@ -327,6 +327,9 @@ gbm_bo_get_handle(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);
diff --git a/src/gbm/main/gbmint.h b/src/gbm/main/gbmint.h
index d8c9f6e5d7..5ad85cc80f 100644
--- a/src/gbm/main/gbmint.h
+++ b/src/gbm/main/gbmint.h
@@ -82,6 +82,7 @@ struct gbm_device {
union gbm_bo_handle (*bo_get_handle)(struct gbm_bo *bo, int plane);
uint32_t (*bo_get_stride)(struct gbm_bo *bo, int plane);
int64_t (*bo_get_offset)(struct gbm_bo *bo, int plane);
+ uint64_t (*bo_get_modifier)(struct gbm_bo *bo);
void (*bo_destroy)(struct gbm_bo *bo);
struct gbm_surface *(*surface_create)(struct gbm_device *gbm,
--
2.12.0
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