1 files changed, 151 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915/i915_blit.c b/src/gallium/drivers/i915/i915_blit.c
new file mode 100644
index 0000000000..83dfc33528
--- /dev/null
+++ b/src/gallium/drivers/i915/i915_blit.c
@@ -0,0 +1,151 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 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 "i915_blit.h"
+#include "i915_reg.h"
+#include "i915_batch.h"
+#include "i915_debug.h"
+
+#define FILE_DEBUG_FLAG DEBUG_BLIT
+
+void
+i915_fill_blit(struct i915_context *i915,
+               unsigned cpp,
+               unsigned short dst_pitch,
+               struct intel_buffer *dst_buffer,
+               unsigned dst_offset,
+               short x, short y, 
+               short w, short h, 
+               unsigned color)
+{
+   unsigned BR13, CMD;
+
+
+   I915_DBG(i915,
+      "%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
+      __FUNCTION__,
+      dst_buffer, dst_pitch, dst_offset, x, y, w, h);
+
+   switch (cpp) {
+   case 1:
+   case 2:
+   case 3:
+      BR13 = (((int) dst_pitch) & 0xffff) |
+         (0xF0 << 16) | (1 << 24);
+      CMD = XY_COLOR_BLT_CMD;
+      break;
+   case 4:
+      BR13 = (((int) dst_pitch) & 0xffff) |
+         (0xF0 << 16) | (1 << 24) | (1 << 25);
+      CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA |
+             XY_COLOR_BLT_WRITE_RGB);
+      break;
+   default:
+      return;
+   }
+
+   if (!BEGIN_BATCH(6, 1)) {
+      FLUSH_BATCH(NULL);
+      assert(BEGIN_BATCH(6, 1));
+   }
+   OUT_BATCH(CMD);
+   OUT_BATCH(BR13);
+   OUT_BATCH((y << 16) | x);
+   OUT_BATCH(((y + h) << 16) | (x + w));
+   OUT_RELOC(dst_buffer, INTEL_USAGE_2D_TARGET, dst_offset);
+   OUT_BATCH(color);
+   FLUSH_BATCH(NULL);
+}
+
+void
+i915_copy_blit(struct i915_context *i915,
+               unsigned do_flip,
+               unsigned cpp,
+               unsigned short src_pitch,
+               struct intel_buffer *src_buffer,
+               unsigned src_offset,
+               unsigned short dst_pitch,
+               struct intel_buffer *dst_buffer,
+               unsigned dst_offset,
+               short src_x, short src_y,
+               short dst_x, short dst_y, 
+               short w, short h)
+{
+   unsigned CMD, BR13;
+   int dst_y2 = dst_y + h;
+   int dst_x2 = dst_x + w;
+
+
+   I915_DBG(i915,
+      "%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
+      __FUNCTION__,
+      src_buffer, src_pitch, src_offset, src_x, src_y,
+      dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
+
+   switch (cpp) {
+   case 1:
+   case 2:
+   case 3:
+      BR13 = (((int) dst_pitch) & 0xffff) |
+         (0xCC << 16) | (1 << 24);
+      CMD = XY_SRC_COPY_BLT_CMD;
+      break;
+   case 4:
+      BR13 = (((int) dst_pitch) & 0xffff) |
+             (0xCC << 16) | (1 << 24) | (1 << 25);
+      CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
+            XY_SRC_COPY_BLT_WRITE_RGB);
+      break;
+   default:
+      return;
+   }
+
+   if (dst_y2 < dst_y || dst_x2 < dst_x) {
+      return;
+   }
+
+   /* Hardware can handle negative pitches but loses the ability to do
+    * proper overlapping blits in that case.  We don't really have a
+    * need for either at this stage.
+    */
+   assert (dst_pitch > 0 && src_pitch > 0);
+
+   if (!BEGIN_BATCH(8, 2)) {
+      FLUSH_BATCH(NULL);
+      assert(BEGIN_BATCH(8, 2));
+   }
+   OUT_BATCH(CMD);
+   OUT_BATCH(BR13);
+   OUT_BATCH((dst_y << 16) | dst_x);
+   OUT_BATCH((dst_y2 << 16) | dst_x2);
+   OUT_RELOC(dst_buffer, INTEL_USAGE_2D_TARGET, dst_offset);
+   OUT_BATCH((src_y << 16) | src_x);
+   OUT_BATCH(((int) src_pitch & 0xffff));
+   OUT_RELOC(src_buffer, INTEL_USAGE_2D_SOURCE, src_offset);
+   FLUSH_BATCH(NULL);
+}