diff options
Diffstat (limited to 'libre-multilib/lib32-opencl-mesa/0001-i965-import-prime-buffers-in-the-current-context-not.patch')
| -rw-r--r-- | libre-multilib/lib32-opencl-mesa/0001-i965-import-prime-buffers-in-the-current-context-not.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libre-multilib/lib32-opencl-mesa/0001-i965-import-prime-buffers-in-the-current-context-not.patch b/libre-multilib/lib32-opencl-mesa/0001-i965-import-prime-buffers-in-the-current-context-not.patch new file mode 100644 index 000000000..0b37366f6 --- /dev/null +++ b/libre-multilib/lib32-opencl-mesa/0001-i965-import-prime-buffers-in-the-current-context-not.patch @@ -0,0 +1,66 @@ +From e180e9e3c830d3611a6cf7d32e988b4c28d20942 Mon Sep 17 00:00:00 2001 +From: Martin Peres <martin.peres@linux.intel.com> +Date: Wed, 3 Aug 2016 12:58:23 +0300 +Subject: [PATCH] i965: import prime buffers in the current context, not screen + +This mirrors the codepath taken by DRI2 in IntelSetTexBuffer2() and +fixes many applications when using DRI3: + - Totem with libva on hw-accelerated decoding + - obs-studio, using Window Capture (Xcomposite) as a Source + - gstreamer with VAAPI + +Cc: mesa-stable@lists.freedesktop.org +Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71759 +Signed-off-by: Martin Peres <martin.peres@linux.intel.com> +--- + src/mesa/drivers/dri/i965/intel_screen.c | 25 +++++++++++++++++++++++-- + 1 file changed, 23 insertions(+), 2 deletions(-) + +diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c +index ae51c40..169d578 100644 +--- a/src/mesa/drivers/dri/i965/intel_screen.c ++++ b/src/mesa/drivers/dri/i965/intel_screen.c +@@ -702,8 +702,11 @@ intel_create_image_from_fds(__DRIscreen *screen, + int *fds, int num_fds, int *strides, int *offsets, + void *loaderPrivate) + { ++ GET_CURRENT_CONTEXT(ctx); + struct intel_screen *intelScreen = screen->driverPrivate; ++ struct brw_context *brw = brw_context(ctx); + struct intel_image_format *f; ++ dri_bufmgr *bufmgr; + __DRIimage *image; + int i, index; + +@@ -744,8 +747,26 @@ intel_create_image_from_fds(__DRIscreen *screen, + size = end; + } + +- image->bo = drm_intel_bo_gem_create_from_prime(intelScreen->bufmgr, +- fds[0], size); ++ /* Let's import the buffer into the current context instead of the current ++ * screen as some applications like gstreamer, totem, or obs create multiple ++ * X connections which end up creating multiple screens and thus multiple ++ * buffer managers. They then proceed to use a different X connection than ++ * the one used by the currently-bound context to call GLXBindTexImageExt() ++ * which should then import the buffer in the current bound context and not ++ * the current screen. This is done properly upstairs for texture management ++ * so we need to mirror this behaviour if we don't want the kernel rejecting ++ * our pushbuffers as the buffer would not have been imported by the same ++ * buffer manager that sent the pushbuffer referencing it. ++ * ++ * If there is no context currently bound, then revert to using the screen's ++ * buffer manager and hope for the best... ++ */ ++ if (brw) ++ bufmgr = brw->bufmgr; ++ else ++ bufmgr = intelScreen->bufmgr; ++ ++ image->bo = drm_intel_bo_gem_create_from_prime(bufmgr, fds[0], size); + if (image->bo == NULL) { + free(image); + return NULL; +-- +2.9.0 + |