1 files changed, 94 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_winsys.h b/src/gallium/drivers/r300/r300_winsys.h
new file mode 100644
index 0000000000..5a3a212892
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_winsys.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
+ *
+ * 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. */
+
+#ifndef R300_WINSYS_H
+#define R300_WINSYS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The public interface header for the r300 pipe driver.
+ * Any winsys hosting this pipe needs to implement r300_winsys and then
+ * call r300_create_context to start things. */
+
+#include "pipe/p_defines.h"
+#include "pipe/p_state.h"
+
+struct radeon_cs;
+
+struct r300_winsys {
+
+    /* PCI ID */
+    uint32_t pci_id;
+
+    /* GB pipe count */
+    uint32_t gb_pipes;
+
+    /* CS object. This is very much like Intel's batchbuffer.
+     * Fill it full of dwords and relocs and then submit.
+     * Repeat as needed. */
+    /* Note: Unlike Mesa's version of this, we don't keep a copy of the CSM
+     * that was used to create this CS. Is this a good idea? */
+    /* Note: The pipe driver doesn't know how to use this. This is purely
+     * for the winsys. */
+    struct radeon_cs* cs;
+
+    /* Check to see if there's room for commands. */
+    boolean (*check_cs)(struct radeon_cs* cs, int size);
+
+    /* Start a command emit. */
+    void (*begin_cs)(struct radeon_cs* cs,
+           int size,
+           const char* file,
+           const char* function,
+           int line);
+
+    /* Write a dword to the command buffer. */
+    void (*write_cs_dword)(struct radeon_cs* cs, uint32_t dword);
+
+    /* Write a relocated dword to the command buffer. */
+    void (*write_cs_reloc)(struct radeon_cs* cs,
+           struct pipe_buffer* bo,
+           uint32_t rd,
+           uint32_t wd,
+           uint32_t flags);
+
+    /* Finish a command emit. */
+    void (*end_cs)(struct radeon_cs* cs,
+           const char* file,
+           const char* function,
+           int line);
+
+    /* Flush the CS. */
+    void (*flush_cs)(struct radeon_cs* cs);
+};
+
+struct pipe_context* r300_create_context(struct pipe_screen* screen,
+                                         struct pipe_winsys* winsys,
+                                         struct r300_winsys* r300_winsys);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* R300_WINSYS_H */