Merge remote branch 'origin/master' into nvc0-new

1 files changed, 114 insertions, 0 deletions

diff --git a/src/gallium/drivers/r600/r600_upload.c b/src/gallium/drivers/r600/r600_upload.c
new file mode 100644
index 00000000000..44102ff55b6
--- /dev/null
+++ b/src/gallium/drivers/r600/r600_upload.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2010 Jerome Glisse <[email protected]>
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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.
+ *
+ * Authors:
+ *      Jerome Glisse <[email protected]>
+ */
+#include <errno.h>
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "r600.h"
+#include "r600_pipe.h"
+#include "r600_resource.h"
+
+struct r600_upload {
+	struct r600_pipe_context	*rctx;
+	struct r600_bo			*buffer;
+	char				*ptr;
+	unsigned			size;
+	unsigned			default_size;
+	unsigned			total_alloc_size;
+	unsigned			offset;
+	unsigned			alignment;
+};
+
+struct r600_upload *r600_upload_create(struct r600_pipe_context *rctx,
+					unsigned default_size,
+					unsigned alignment)
+{
+	struct r600_upload *upload = CALLOC_STRUCT(r600_upload);
+
+	if (upload == NULL)
+		return NULL;
+
+	upload->rctx = rctx;
+	upload->size = 0;
+	upload->default_size = default_size;
+	upload->alignment = alignment;
+	upload->ptr = NULL;
+	upload->buffer = NULL;
+	upload->total_alloc_size = 0;
+
+	return upload;
+}
+
+void r600_upload_flush(struct r600_upload *upload)
+{
+	if (upload->buffer) {
+		r600_bo_reference(upload->rctx->radeon, &upload->buffer, NULL);
+	}
+	upload->default_size = MAX2(upload->total_alloc_size, upload->default_size);
+	upload->total_alloc_size = 0;
+	upload->size = 0;
+	upload->offset = 0;
+	upload->ptr = NULL;
+	upload->buffer = NULL;
+}
+
+void r600_upload_destroy(struct r600_upload *upload)
+{
+	r600_upload_flush(upload);
+	FREE(upload);
+}
+
+int r600_upload_buffer(struct r600_upload *upload, unsigned offset,
+			unsigned size, struct r600_resource_buffer *in_buffer,
+			unsigned *out_offset, unsigned *out_size,
+			struct r600_bo **out_buffer)
+{
+	unsigned alloc_size = align(size, upload->alignment);
+	const void *in_ptr = NULL;
+
+	if (upload->offset + alloc_size > upload->size) {
+		if (upload->size) {
+			r600_bo_reference(upload->rctx->radeon, &upload->buffer, NULL);
+		}
+		upload->size = align(MAX2(upload->default_size, alloc_size), 4096);
+		upload->total_alloc_size += upload->size;
+		upload->offset = 0;
+		upload->buffer = r600_bo(upload->rctx->radeon, upload->size, 4096, PIPE_BIND_VERTEX_BUFFER, 0);
+		if (upload->buffer == NULL) {
+			return -ENOMEM;
+		}
+		upload->ptr = r600_bo_map(upload->rctx->radeon, upload->buffer, 0, NULL);
+	}
+
+	in_ptr = in_buffer->user_buffer;
+	memcpy(upload->ptr + upload->offset, (uint8_t *) in_ptr + offset, size);
+	*out_offset = upload->offset;
+	*out_size = upload->size;
+	*out_buffer = NULL;
+	r600_bo_reference(upload->rctx->radeon, out_buffer, upload->buffer);
+	upload->offset += alloc_size;
+
+	return 0;
+}