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From e2b5041b272e0cb8b3c4c9d332b0bbc3dda05e69 Mon Sep 17 00:00:00 2001
From: "Ung, Teng En" <teng.en.ung@intel.com>
Date: Fri, 8 Oct 2021 14:38:45 +0000
Subject: [PATCH 3/3] sample_misc: use wayland dmabuf to render nv12
Upstream-Status: Submitted
innersource PR #269
---
.../sample_misc/wayland/src/class_wayland.cpp | 60 +++++++++++++++++-----
1 file changed, 47 insertions(+), 13 deletions(-)
diff --git a/tools/legacy/sample_misc/wayland/src/class_wayland.cpp b/tools/legacy/sample_misc/wayland/src/class_wayland.cpp
index 7eac204..68fcea4 100644
--- a/tools/legacy/sample_misc/wayland/src/class_wayland.cpp
+++ b/tools/legacy/sample_misc/wayland/src/class_wayland.cpp
@@ -13,6 +13,7 @@
#include <iostream>
extern "C" {
#include <drm.h>
+#include <drm_fourcc.h>
#include <intel_bufmgr.h>
#include <xf86drm.h>
}
@@ -292,20 +293,53 @@ struct wl_buffer* Wayland::CreatePrimeBuffer(uint32_t name,
int32_t offsets[3],
int32_t pitches[3]) {
struct wl_buffer* buffer = NULL;
- if (NULL == m_drm)
- return NULL;
- buffer = wl_drm_create_prime_buffer(m_drm,
- name,
- width,
- height,
- format,
- offsets[0],
- pitches[0],
- offsets[1],
- pitches[1],
- offsets[2],
- pitches[2]);
+#if defined(WAYLAND_LINUX_DMABUF_SUPPORT)
+ if (format == WL_DRM_FORMAT_NV12) {
+ if(NULL == m_dmabuf)
+ return NULL;
+
+ struct zwp_linux_buffer_params_v1 *dmabuf_params = NULL;
+ int i = 0;
+ uint64_t modifier = I915_FORMAT_MOD_Y_TILED;
+
+ dmabuf_params = zwp_linux_dmabuf_v1_create_params(m_dmabuf);
+ for(i = 0; i < 2; i++) {
+ zwp_linux_buffer_params_v1_add(dmabuf_params,
+ name,
+ i,
+ offsets[i],
+ pitches[i],
+ modifier >> 32,
+ modifier & 0xffffffff);
+ }
+
+ buffer = zwp_linux_buffer_params_v1_create_immed(dmabuf_params,
+ width,
+ height,
+ format,
+ 0);
+
+ zwp_linux_buffer_params_v1_destroy(dmabuf_params);
+ } else
+#endif
+ {
+ if(NULL == m_drm)
+ return NULL;
+
+ buffer = wl_drm_create_prime_buffer(m_drm,
+ name,
+ width,
+ height,
+ format,
+ offsets[0],
+ pitches[0],
+ offsets[1],
+ pitches[1],
+ offsets[2],
+ pitches[2]);
+ }
+
return buffer;
}
--
2.7.4
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