1 files changed, 198 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965/brw_batchbuffer.c b/src/gallium/drivers/i965/brw_batchbuffer.c
new file mode 100644
index 00000000000..8bcac76ede1
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_batchbuffer.c
@@ -0,0 +1,198 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * 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, 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 TUNGSTEN GRAPHICS AND/OR ITS 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.
+ * 
+ **************************************************************************/
+
+#include "brw_batchbuffer.h"
+#include "brw_decode.h"
+#include "brw_reg.h"
+#include "brw_winsys.h"
+
+
+void
+brw_batchbuffer_reset(struct brw_batchbuffer *batch)
+{
+   struct intel_context *intel = batch->intel;
+
+   if (batch->buf != NULL) {
+      brw->sws->bo_unreference(batch->buf);
+      batch->buf = NULL;
+   }
+
+   if (!batch->buffer && intel->ttm == GL_TRUE)
+      batch->buffer = malloc (intel->maxBatchSize);
+
+   batch->buf = batch->sws->bo_alloc(batch->sws,
+				     BRW_BUFFER_TYPE_BATCH,
+				     intel->maxBatchSize, 4096);
+   if (batch->buffer)
+      batch->map = batch->buffer;
+   else {
+      batch->sws->bo_map(batch->buf, GL_TRUE);
+      batch->map = batch->buf->virtual;
+   }
+   batch->size = intel->maxBatchSize;
+   batch->ptr = batch->map;
+   batch->dirty_state = ~0;
+   batch->cliprect_mode = IGNORE_CLIPRECTS;
+}
+
+struct brw_batchbuffer *
+brw_batchbuffer_alloc(struct brw_winsys_screen *sws)
+{
+   struct brw_batchbuffer *batch = CALLOC_STRUCT(brw_batchbuffer);
+
+   batch->sws = sws;
+   brw_batchbuffer_reset(batch);
+
+   return batch;
+}
+
+void
+brw_batchbuffer_free(struct brw_batchbuffer *batch)
+{
+   if (batch->map) {
+      dri_bo_unmap(batch->buf);
+      batch->map = NULL;
+   }
+
+   brw->sws->bo_unreference(batch->buf);
+   batch->buf = NULL;
+   FREE(batch);
+}
+
+
+void
+_brw_batchbuffer_flush(struct brw_batchbuffer *batch, const char *file,
+			 int line)
+{
+   struct intel_context *intel = batch->intel;
+   GLuint used = batch->ptr - batch->map;
+
+   if (used == 0)
+      return;
+
+   if (intel->first_post_swapbuffers_batch == NULL) {
+      intel->first_post_swapbuffers_batch = intel->batch->buf;
+      batch->sws->bo_reference(intel->first_post_swapbuffers_batch);
+   }
+
+   if (intel->first_post_swapbuffers_batch == NULL) {
+      intel->first_post_swapbuffers_batch = intel->batch->buf;
+      batch->sws->bo_reference(intel->first_post_swapbuffers_batch);
+   }
+
+
+   if (INTEL_DEBUG & DEBUG_BATCH)
+      fprintf(stderr, "%s:%d: Batchbuffer flush with %db used\n", file, line,
+	      used);
+
+   /* Emit a flush if the bufmgr doesn't do it for us. */
+   if (intel->always_flush_cache || !intel->ttm) {
+      *(GLuint *) (batch->ptr) = intel->vtbl.flush_cmd();
+      batch->ptr += 4;
+      used = batch->ptr - batch->map;
+   }
+
+   /* Round batchbuffer usage to 2 DWORDs. */
+
+   if ((used & 4) == 0) {
+      *(GLuint *) (batch->ptr) = 0; /* noop */
+      batch->ptr += 4;
+      used = batch->ptr - batch->map;
+   }
+
+   /* Mark the end of the buffer. */
+   *(GLuint *) (batch->ptr) = MI_BATCH_BUFFER_END; /* noop */
+   batch->ptr += 4;
+   used = batch->ptr - batch->map;
+
+   batch->sws->bo_unmap(batch->buf);
+
+   batch->map = NULL;
+   batch->ptr = NULL;
+      
+   batch->sws->bo_exec(batch->buf, used, NULL, 0, 0 );
+      
+   if (INTEL_DEBUG & DEBUG_BATCH) {
+      dri_bo_map(batch->buf, GL_FALSE);
+      intel_decode(batch->buf->virtual, used / 4, batch->buf->offset,
+		   brw->brw_screen->pci_id);
+      dri_bo_unmap(batch->buf);
+   }
+
+   if (INTEL_DEBUG & DEBUG_SYNC) {
+      fprintf(stderr, "waiting for idle\n");
+      dri_bo_map(batch->buf, GL_TRUE);
+      dri_bo_unmap(batch->buf);
+   }
+
+   /* Reset the buffer:
+    */
+   brw_batchbuffer_reset(batch);
+}
+
+
+/*  This is the only way buffers get added to the validate list.
+ */
+GLboolean
+brw_batchbuffer_emit_reloc(struct brw_batchbuffer *batch,
+                             struct brw_winsys_buffer *buffer,
+                             uint32_t read_domains, uint32_t write_domain,
+			     uint32_t delta)
+{
+   int ret;
+
+   if (batch->ptr - batch->map > batch->buf->size)
+      _mesa_printf ("bad relocation ptr %p map %p offset %d size %d\n",
+		    batch->ptr, batch->map, batch->ptr - batch->map, batch->buf->size);
+
+   ret = batch->sws->bo_emit_reloc(batch->buf,
+				   read_domains,
+				   write_domain,
+				   delta, 
+				   batch->ptr - batch->map,
+				   buffer);
+
+   /*
+    * Using the old buffer offset, write in what the right data would be, in case
+    * the buffer doesn't move and we can short-circuit the relocation processing
+    * in the kernel
+    */
+   brw_batchbuffer_emit_dword (batch, buffer->offset + delta);
+
+   return GL_TRUE;
+}
+
+void
+brw_batchbuffer_data(struct brw_batchbuffer *batch,
+                       const void *data, GLuint bytes,
+		       enum cliprect_mode cliprect_mode)
+{
+   assert((bytes & 3) == 0);
+   brw_batchbuffer_require_space(batch, bytes);
+   __memcpy(batch->ptr, data, bytes);
+   batch->ptr += bytes;
+}