1 files changed, 134 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_screen_buffer.h b/src/gallium/drivers/r300/r300_screen_buffer.h
new file mode 100644
index 0000000000..57f48229b2
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_screen_buffer.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2010 Red Hat 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
+ * 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: Dave Airlie
+ */
+
+#ifndef R300_SCREEN_BUFFER_H
+#define R300_SCREEN_BUFFER_H
+
+#include <stdio.h>
+#include "pipe/p_compiler.h"
+#include "pipe/p_state.h"
+#include "util/u_transfer.h"
+
+#include "r300_screen.h"
+#include "r300_winsys.h"
+#include "r300_context.h"
+
+#define R300_BUFFER_MAGIC 0xabcd1234
+#define R300_BUFFER_MAX_RANGES 32
+
+struct r300_buffer_range {
+    uint32_t start;
+    uint32_t end;
+};
+
+/* Vertex buffer. */
+struct r300_buffer
+{
+    struct u_resource b;
+
+    uint32_t magic;
+
+    struct r300_winsys_buffer *buf;
+
+    void *user_buffer;
+    struct r300_buffer_range ranges[R300_BUFFER_MAX_RANGES];
+    unsigned num_ranges;
+};
+
+/* Functions. */
+
+int r300_upload_user_buffers(struct r300_context *r300);
+
+int r300_upload_index_buffer(struct r300_context *r300,
+			     struct pipe_resource **index_buffer,
+			     unsigned index_size,
+			     unsigned start,
+			     unsigned count);
+
+struct pipe_resource *r300_buffer_create(struct pipe_screen *screen,
+					 const struct pipe_resource *templ);
+
+struct pipe_resource *r300_user_buffer_create(struct pipe_screen *screen,
+					      void *ptr,
+					      unsigned bytes,
+					      unsigned usage);
+
+unsigned r300_buffer_is_referenced(struct pipe_context *context,
+				   struct pipe_resource *buf,
+                                   enum r300_reference_domain domain);
+
+/* Inline functions. */
+
+static INLINE struct r300_buffer *r300_buffer(struct pipe_resource *buffer)
+{
+    if (buffer) {
+	assert(((struct r300_buffer *)buffer)->magic == R300_BUFFER_MAGIC);
+	return (struct r300_buffer *)buffer;
+    }
+    return NULL;
+}
+
+static INLINE boolean r300_buffer_is_user_buffer(struct pipe_resource *buffer)
+{
+    return r300_buffer(buffer)->user_buffer ? true : false;
+}
+
+static INLINE boolean r300_add_buffer(struct r300_winsys_screen *rws,
+				      struct pipe_resource *buffer,
+				      int rd, int wr)
+{
+    struct r300_buffer *buf = r300_buffer(buffer);
+
+    if (!buf->buf)
+	return true;
+
+    return rws->add_buffer(rws, buf->buf, rd, wr);
+}
+
+static INLINE boolean r300_add_texture(struct r300_winsys_screen *rws,
+				       struct r300_texture *tex,
+				       int rd, int wr)
+{
+    return rws->add_buffer(rws, tex->buffer, rd, wr);
+}
+
+static INLINE void r300_buffer_write_reloc(struct r300_winsys_screen *rws,
+				      struct r300_buffer *buf,
+				      uint32_t rd, uint32_t wd, uint32_t flags)
+{
+    if (!buf->buf)
+	return;
+
+    rws->write_cs_reloc(rws, buf->buf, rd, wd, flags);
+}
+
+static INLINE void r300_texture_write_reloc(struct r300_winsys_screen *rws,
+					    struct r300_texture *texture,
+					    uint32_t rd, uint32_t wd, uint32_t flags)
+{
+    rws->write_cs_reloc(rws, texture->buffer, rd, wd, flags);
+}
+
+#endif