1 files changed, 110 insertions, 0 deletions
diff --git a/src/amdgpu_pixmap.h b/src/amdgpu_pixmap.h
new file mode 100644
index 0000000..e37466c
--- /dev/null
+++ b/src/amdgpu_pixmap.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright © 2014 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including
+ * the next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef AMDGPU_PIXMAP_H
+#define AMDGPU_PIXMAP_H
+
+#include "amdgpu_drv.h"
+
+struct amdgpu_pixmap {
+	struct amdgpu_buffer *bo;
+	int stride;
+};
+
+#if HAS_DEVPRIVATEKEYREC
+extern DevPrivateKeyRec amdgpu_pixmap_index;
+#else
+extern int amdgpu_pixmap_index;
+#endif
+
+static inline struct amdgpu_pixmap *amdgpu_get_pixmap_private(PixmapPtr pixmap)
+{
+#if HAS_DEVPRIVATEKEYREC
+	return dixGetPrivate(&pixmap->devPrivates, &amdgpu_pixmap_index);
+#else
+	return dixLookupPrivate(&pixmap->devPrivates, &amdgpu_pixmap_index);
+#endif
+}
+
+static inline void amdgpu_set_pixmap_private(PixmapPtr pixmap,
+					     struct amdgpu_pixmap *priv)
+{
+	dixSetPrivate(&pixmap->devPrivates, &amdgpu_pixmap_index, priv);
+}
+
+#if XF86_CRTC_VERSION >= 5
+#define AMDGPU_PIXMAP_SHARING 1
+#endif
+
+static inline void amdgpu_set_pixmap_bo(PixmapPtr pPix, struct amdgpu_buffer *bo)
+{
+	struct amdgpu_pixmap *priv;
+
+	priv = amdgpu_get_pixmap_private(pPix);
+	if (priv == NULL && bo == NULL)
+		return;
+
+	if (priv) {
+		if (priv->bo == bo)
+			return;
+
+		if (priv->bo) {
+			amdgpu_bo_unref(&priv->bo);
+		}
+
+		if (!bo) {
+			free(priv);
+			priv = NULL;
+		}
+	}
+
+	if (bo) {
+		if (!priv) {
+			priv = calloc(1, sizeof(struct amdgpu_pixmap));
+			if (!priv)
+				goto out;
+		}
+		amdgpu_bo_ref(bo);
+		priv->bo = bo;
+	}
+out:
+	amdgpu_set_pixmap_private(pPix, priv);
+}
+
+static inline struct amdgpu_buffer *amdgpu_get_pixmap_bo(PixmapPtr pPix)
+{
+	struct amdgpu_pixmap *priv;
+	priv = amdgpu_get_pixmap_private(pPix);
+	return priv ? priv->bo : NULL;
+}
+
+enum {
+	AMDGPU_CREATE_PIXMAP_DRI2 = 0x08000000,
+	AMDGPU_CREATE_PIXMAP_LINEAR = 0x04000000
+};
+
+extern Bool amdgpu_pixmap_init(ScreenPtr screen);
+
+#endif /* AMDGPU_PIXMAP_H */