[Mesa-dev] [PATCH v2 3/3] Add a new capabilities for drivers that can't share buffers
Giovanni Campagna
scampa.giovanni at gmail.com
Mon May 5 09:07:14 PDT 2014
From: Giovanni Campagna <gcampagna at src.gnome.org>
The kms-dri swrast driver cannot share buffers using the GEM,
so it must tell the loader to disable extensions relying on
that, without disabling the image DRI extension altogheter
(which would prevent the loader from working at all).
This requires a new gallium capability (which is queried on
the pipe_screen and for swrast drivers it's forwared to the
winsys), and requires a new version of the DRI image extension.
---
include/GL/internal/dri_interface.h | 17 +++++++++++++-
src/egl/drivers/dri2/egl_dri2.c | 10 ++++++++-
src/egl/drivers/dri2/platform_drm.c | 17 +++++++++++---
src/gallium/docs/source/screen.rst | 5 ++++-
src/gallium/drivers/freedreno/freedreno_screen.c | 1 +
src/gallium/drivers/i915/i915_screen.c | 1 +
src/gallium/drivers/ilo/ilo_screen.c | 2 ++
src/gallium/drivers/llvmpipe/lp_screen.c | 7 ++++++
src/gallium/drivers/nouveau/nv30/nv30_screen.c | 1 +
src/gallium/drivers/nouveau/nv50/nv50_screen.c | 2 ++
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 2 ++
src/gallium/drivers/r300/r300_screen.c | 1 +
src/gallium/drivers/r600/r600_pipe.c | 1 +
src/gallium/drivers/radeonsi/si_pipe.c | 1 +
src/gallium/drivers/softpipe/sp_screen.c | 7 ++++++
src/gallium/drivers/svga/svga_screen.c | 2 ++
src/gallium/include/pipe/p_defines.h | 1 +
src/gallium/include/state_tracker/sw_winsys.h | 5 +++++
src/gallium/state_trackers/dri/common/dri_screen.h | 1 +
src/gallium/state_trackers/dri/drm/dri2.c | 23 +++++++++++++++----
src/gallium/winsys/sw/kms-dri/kms_dri_sw_winsys.c | 26 +++++++++++++++++++---
21 files changed, 120 insertions(+), 13 deletions(-)
diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h
index 4d57d0b..fba1cac 100644
--- a/include/GL/internal/dri_interface.h
+++ b/include/GL/internal/dri_interface.h
@@ -1005,7 +1005,7 @@ struct __DRIdri2ExtensionRec {
* extensions.
*/
#define __DRI_IMAGE "DRI_IMAGE"
-#define __DRI_IMAGE_VERSION 8
+#define __DRI_IMAGE_VERSION 9
/**
* These formats correspond to the similarly named MESA_FORMAT_*
@@ -1133,6 +1133,13 @@ enum __DRIChromaSiting {
#define __DRI_IMAGE_ERROR_BAD_PARAMETER 3
/*@}*/
+/**
+ * \name Capabilities that might be returned by __DRIimageExtensionRec::getCapabilities
+ */
+/*@{*/
+#define __DRI_IMAGE_CAP_GLOBAL_NAMES 1
+/*@}*/
+
typedef struct __DRIimageRec __DRIimage;
typedef struct __DRIimageExtensionRec __DRIimageExtension;
struct __DRIimageExtensionRec {
@@ -1239,6 +1246,14 @@ struct __DRIimageExtensionRec {
enum __DRIChromaSiting vert_siting,
unsigned *error,
void *loaderPrivate);
+
+ /**
+ * Query for general capabilities of the driver that concern
+ * buffer sharing and image importing.
+ *
+ * \since 9
+ */
+ int (*getCapabilities)(__DRIscreen *screen);
};
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 380bd7b..178a6f7 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -522,7 +522,15 @@ dri2_setup_screen(_EGLDisplay *disp)
}
if (dri2_dpy->image) {
- disp->Extensions.MESA_drm_image = EGL_TRUE;
+ if (dri2_dpy->image->base.version >= 9 &&
+ dri2_dpy->image->getCapabilities != NULL) {
+ int capabilities;
+
+ capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
+ disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
+ } else
+ disp->Extensions.MESA_drm_image = EGL_TRUE;
+
disp->Extensions.KHR_image_base = EGL_TRUE;
disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
if (dri2_dpy->image->base.version >= 5 &&
diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index 17b93db..2b79612 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -266,7 +266,10 @@ back_bo_to_dri_buffer(struct dri2_egl_surface *dri2_surf, __DRIbuffer *buffer)
bo = (struct gbm_dri_bo *) dri2_surf->back->bo;
- dri2_dpy->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_NAME, &name);
+ if (dri2_surf->base.Resource.Display->Extensions.MESA_drm_image)
+ dri2_dpy->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_NAME, &name);
+ else
+ dri2_dpy->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_HANDLE, &name);
dri2_dpy->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_STRIDE, &pitch);
buffer->attachment = __DRI_BUFFER_BACK_LEFT;
@@ -719,8 +722,16 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
disp->Extensions.EXT_buffer_age = EGL_TRUE;
#ifdef HAVE_WAYLAND_PLATFORM
- if (dri2_dpy->image)
- disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
+ if (dri2_dpy->image) {
+ if (dri2_dpy->image->base.version >= 9 &&
+ dri2_dpy->image->getCapabilities != NULL) {
+ int capabilities;
+
+ capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
+ disp->Extensions.WL_bind_wayland_display = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
+ } else
+ disp->Extensions.WL_bind_wayland_display = EGL_TRUE;
+ }
#endif
/* we're supporting EGL 1.4 */
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index e22435c..5708483 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -200,7 +200,10 @@ The integer capabilities:
* ``PIPE_CAP_SAMPLE_SHADING``: Whether there is support for per-sample
shading. The context->set_min_samples function will be expected to be
implemented.
-
+* ``PIPE_CAP_BUFFER_SHARE``: Whether it is possible to share buffers between
+ processes using the native window system. If this is 0, the buffers and
+ display targets available are only valid for in-process rendering and
+ scanout. This will be 1 for most HW drivers.
.. _pipe_capf:
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index d62d4b6..b8244b7 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -175,6 +175,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
case PIPE_CAP_TEXTURE_MULTISAMPLE:
case PIPE_CAP_USER_CONSTANT_BUFFERS:
+ case PIPE_CAP_BUFFER_SHARE:
return 1;
case PIPE_CAP_SHADER_STENCIL_EXPORT:
diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
index 8ee4330..fd95aa8 100644
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -186,6 +186,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
case PIPE_CAP_USER_VERTEX_BUFFERS:
case PIPE_CAP_USER_INDEX_BUFFERS:
case PIPE_CAP_USER_CONSTANT_BUFFERS:
+ case PIPE_CAP_BUFFER_SHARE:
return 1;
/* Unsupported features (boolean caps). */
diff --git a/src/gallium/drivers/ilo/ilo_screen.c b/src/gallium/drivers/ilo/ilo_screen.c
index c8fa686..d1bade5 100644
--- a/src/gallium/drivers/ilo/ilo_screen.c
+++ b/src/gallium/drivers/ilo/ilo_screen.c
@@ -441,6 +441,8 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_TEXTURE_QUERY_LOD:
case PIPE_CAP_SAMPLE_SHADING:
return 0;
+ case PIPE_CAP_BUFFER_SHARE:
+ return 1;
default:
return 0;
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 98dbab7..764f0b5 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -105,6 +105,8 @@ llvmpipe_get_name(struct pipe_screen *screen)
static int
llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
{
+ struct llvmpipe_screen *lp_screen = llvmpipe_screen(screen);
+
switch (param) {
case PIPE_CAP_NPOT_TEXTURES:
case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
@@ -245,6 +247,11 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
return 0;
case PIPE_CAP_FAKE_SW_MSAA:
return 1;
+ case PIPE_CAP_BUFFER_SHARE:
+ if (lp_screen->winsys->get_param != NULL)
+ return lp_screen->winsys->get_param(lp_screen->winsys, param);
+ else
+ return 1;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAP %d query\n", param);
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index 53ca985..b652d7f 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -80,6 +80,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_USER_CONSTANT_BUFFERS:
case PIPE_CAP_USER_INDEX_BUFFERS:
case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
+ case PIPE_CAP_BUFFER_SHARE:
return 1;
case PIPE_CAP_USER_VERTEX_BUFFERS:
return 0;
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 151d5d2..fe152c3 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -206,6 +206,8 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_TEXTURE_QUERY_LOD:
case PIPE_CAP_SAMPLE_SHADING:
return class_3d >= NVA3_3D_CLASS;
+ case PIPE_CAP_BUFFER_SHARE:
+ return 1;
default:
NOUVEAU_ERR("unknown PIPE_CAP %d\n", param);
return 0;
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 815c34f..011c001 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -189,6 +189,8 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
return 1;
case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
return 4;
+ case PIPE_CAP_BUFFER_SHARE:
+ return 1;
default:
NOUVEAU_ERR("unknown PIPE_CAP %d\n", param);
return 0;
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index d570514..ba91bfe 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -107,6 +107,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_USER_CONSTANT_BUFFERS:
case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
+ case PIPE_CAP_BUFFER_SHARE:
return 1;
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index 0668b27..60bab1e 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -261,6 +261,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
case PIPE_CAP_TEXTURE_MULTISAMPLE:
case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
+ case PIPE_CAP_BUFFER_SHARE:
return 1;
case PIPE_CAP_COMPUTE:
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 873115b..fa66bd8 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -209,6 +209,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_TGSI_VS_LAYER:
case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
+ case PIPE_CAP_BUFFER_SHARE:
return 1;
case PIPE_CAP_TEXTURE_MULTISAMPLE:
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index e7c3319..801339b 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -63,6 +63,8 @@ softpipe_get_name(struct pipe_screen *screen)
static int
softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
{
+ struct softpipe_screen *sp_screen = softpipe_screen(screen);
+
switch (param) {
case PIPE_CAP_NPOT_TEXTURES:
case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
@@ -196,6 +198,11 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
return 0;
+ case PIPE_CAP_BUFFER_SHARE:
+ if (sp_screen->winsys->get_param != NULL)
+ return sp_screen->winsys->get_param(sp_screen->winsys, param);
+ else
+ return 1;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAP %d query\n", param);
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index 8c70bb7..79d747b 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -283,6 +283,8 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
return 1;
case PIPE_CAP_ENDIANNESS:
return PIPE_ENDIAN_LITTLE;
+ case PIPE_CAP_BUFFER_SHARE:
+ return 1;
}
debug_printf("Unexpected PIPE_CAP_ query %u\n", param);
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 9436e7e..ebe392b 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -557,6 +557,7 @@ enum pipe_cap {
PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET = 95,
PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET = 96,
PIPE_CAP_SAMPLE_SHADING = 97,
+ PIPE_CAP_BUFFER_SHARE = 98
};
#define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
diff --git a/src/gallium/include/state_tracker/sw_winsys.h b/src/gallium/include/state_tracker/sw_winsys.h
index a3479eb..21250ff 100644
--- a/src/gallium/include/state_tracker/sw_winsys.h
+++ b/src/gallium/include/state_tracker/sw_winsys.h
@@ -37,6 +37,7 @@
#include "pipe/p_compiler.h" /* for boolean */
#include "pipe/p_format.h"
+#include "pipe/p_defines.h" /* for pipe_cap */
#ifdef __cplusplus
@@ -135,6 +136,10 @@ struct sw_winsys
void
(*displaytarget_destroy)( struct sw_winsys *ws,
struct sw_displaytarget *dt );
+
+ int
+ (*get_param)( struct sw_winsys *ws,
+ enum pipe_cap param );
};
diff --git a/src/gallium/state_trackers/dri/common/dri_screen.h b/src/gallium/state_trackers/dri/common/dri_screen.h
index 7c8e582..446dbcd 100644
--- a/src/gallium/state_trackers/dri/common/dri_screen.h
+++ b/src/gallium/state_trackers/dri/common/dri_screen.h
@@ -69,6 +69,7 @@ struct dri_screen
/* drm */
int fd;
+ boolean can_share_buffer;
/* gallium */
boolean d_depth_bits_last;
diff --git a/src/gallium/state_trackers/dri/drm/dri2.c b/src/gallium/state_trackers/dri/drm/dri2.c
index 7dccc5e..b104e46 100644
--- a/src/gallium/state_trackers/dri/drm/dri2.c
+++ b/src/gallium/state_trackers/dri/drm/dri2.c
@@ -306,9 +306,12 @@ dri2_drawable_process_buffers(struct dri_context *ctx,
templ.format = format;
templ.bind = bind;
- whandle.type = DRM_API_HANDLE_TYPE_SHARED;
whandle.handle = buf->name;
whandle.stride = buf->pitch;
+ if (screen->can_share_buffer)
+ whandle.type = DRM_API_HANDLE_TYPE_SHARED;
+ else
+ whandle.type = DRM_API_HANDLE_TYPE_KMS;
drawable->textures[statt] =
screen->base.screen->resource_from_handle(screen->base.screen,
@@ -477,7 +480,10 @@ dri2_allocate_buffer(__DRIscreen *sPriv,
}
memset(&whandle, 0, sizeof(whandle));
- whandle.type = DRM_API_HANDLE_TYPE_SHARED;
+ if (screen->can_share_buffer)
+ whandle.type = DRM_API_HANDLE_TYPE_SHARED;
+ else
+ whandle.type = DRM_API_HANDLE_TYPE_KMS;
screen->base.screen->resource_get_handle(screen->base.screen,
buffer->resource, &whandle);
@@ -1036,9 +1042,17 @@ dri2_destroy_image(__DRIimage *img)
FREE(img);
}
+static int
+dri2_get_capabilities(__DRIscreen *_screen)
+{
+ struct dri_screen *screen = dri_screen(_screen);
+
+ return (screen->can_share_buffer ? __DRI_IMAGE_CAP_GLOBAL_NAMES : 0);
+}
+
/* The extension is modified during runtime if DRI_PRIME is detected */
static __DRIimageExtension dri2ImageExtension = {
- .base = { __DRI_IMAGE, 6 },
+ .base = { __DRI_IMAGE, 9 },
.createImageFromName = dri2_create_image_from_name,
.createImageFromRenderbuffer = dri2_create_image_from_renderbuffer,
@@ -1050,6 +1064,7 @@ static __DRIimageExtension dri2ImageExtension = {
.createImageFromNames = dri2_from_names,
.fromPlanar = dri2_from_planar,
.createImageFromTexture = dri2_create_from_texture,
+ .getCapabilities = dri2_get_capabilities,
};
/*
@@ -1105,7 +1120,6 @@ dri2_init_screen(__DRIscreen * sPriv)
if (drmGetCap(sPriv->fd, DRM_CAP_PRIME, &cap) == 0 &&
(cap & DRM_PRIME_CAP_IMPORT)) {
- dri2ImageExtension.base.version = 8;
dri2ImageExtension.createImageFromFds = dri2_from_fds;
dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
}
@@ -1119,6 +1133,7 @@ dri2_init_screen(__DRIscreen * sPriv)
if (!configs)
goto fail;
+ screen->can_share_buffer = pscreen->get_param(pscreen, PIPE_CAP_BUFFER_SHARE);
screen->auto_fake_front = dri_with_format(sPriv);
screen->broken_invalidate = !sPriv->dri2.useInvalidate;
screen->lookup_egl_image = dri2_lookup_egl_image;
diff --git a/src/gallium/winsys/sw/kms-dri/kms_dri_sw_winsys.c b/src/gallium/winsys/sw/kms-dri/kms_dri_sw_winsys.c
index 745b857..c51eb8e 100644
--- a/src/gallium/winsys/sw/kms-dri/kms_dri_sw_winsys.c
+++ b/src/gallium/winsys/sw/kms-dri/kms_dri_sw_winsys.c
@@ -230,6 +230,8 @@ kms_sw_displaytarget_from_handle(struct sw_winsys *ws,
struct kms_sw_winsys *kms_sw = kms_sw_winsys(ws);
struct kms_sw_displaytarget *kms_sw_dt;
+ assert(whandle->type == DRM_API_HANDLE_TYPE_KMS);
+
LIST_FOR_EACH_ENTRY(kms_sw_dt, &kms_sw->bo_list, link) {
if (kms_sw_dt->handle == whandle->handle) {
kms_sw_dt->ref_count++;
@@ -252,9 +254,13 @@ kms_sw_displaytarget_get_handle(struct sw_winsys *winsys,
{
struct kms_sw_displaytarget *kms_sw_dt = kms_sw_displaytarget(dt);
- assert(whandle->type == DRM_API_HANDLE_TYPE_SHARED);
- whandle->handle = kms_sw_dt->handle;
- whandle->stride = kms_sw_dt->stride;
+ if (whandle->type == DRM_API_HANDLE_TYPE_KMS) {
+ whandle->handle = kms_sw_dt->handle;
+ whandle->stride = kms_sw_dt->stride;
+ } else {
+ whandle->handle = 0;
+ whandle->stride = 0;
+ }
return TRUE;
}
@@ -269,6 +275,18 @@ kms_sw_displaytarget_display(struct sw_winsys *ws,
assert(0);
}
+static int
+kms_sw_get_param(struct sw_winsys *ws,
+ enum pipe_cap param)
+{
+ switch (param) {
+ case PIPE_CAP_BUFFER_SHARE:
+ return 0;
+
+ default:
+ return 0;
+ }
+}
static void
kms_destroy_sw_winsys(struct sw_winsys *winsys)
@@ -304,6 +322,8 @@ kms_dri_create_winsys(int fd)
ws->base.displaytarget_display = kms_sw_displaytarget_display;
+ ws->base.get_param = kms_sw_get_param;
+
return &ws->base;
}
--
1.9.0
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