1 files changed, 310 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_state_dynamic.c b/src/gallium/drivers/i915simple/i915_state_dynamic.c
new file mode 100644
index 0000000000..86126a5a15
--- /dev/null
+++ b/src/gallium/drivers/i915simple/i915_state_dynamic.c
@@ -0,0 +1,310 @@
+/**************************************************************************
+ * 
+ * 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_batch.h"
+#include "i915_state_inlines.h"
+#include "i915_context.h"
+#include "i915_reg.h"
+#include "i915_state.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "util/u_pack_color.h"
+
+#define FILE_DEBUG_FLAG DEBUG_STATE
+
+/* State that we have chosen to store in the DYNAMIC segment of the
+ * i915 indirect state mechanism.  
+ *
+ * Can't cache these in the way we do the static state, as there is no
+ * start/size in the command packet, instead an 'end' value that gets
+ * incremented.
+ *
+ * Additionally, there seems to be a requirement to re-issue the full
+ * (active) state every time a 4kb boundary is crossed.
+ */
+
+static INLINE void set_dynamic_indirect( struct i915_context *i915,
+					 unsigned offset,
+					 const unsigned *src,
+					 unsigned dwords )
+{
+   unsigned i;
+
+   for (i = 0; i < dwords; i++)
+      i915->current.dynamic[offset + i] = src[i];
+
+   i915->hardware_dirty |= I915_HW_DYNAMIC;
+}
+
+
+/***********************************************************************
+ * Modes4: stencil masks and logicop 
+ */
+static void upload_MODES4( struct i915_context *i915 )
+{
+   unsigned modes4 = 0;
+
+   /* I915_NEW_STENCIL */
+   modes4 |= i915->depth_stencil->stencil_modes4;
+   /* I915_NEW_BLEND */
+   modes4 |= i915->blend->modes4;
+
+   /* Always, so that we know when state is in-active: 
+    */
+   set_dynamic_indirect( i915, 
+			 I915_DYNAMIC_MODES4,
+			 &modes4,
+			 1 );
+}
+
+const struct i915_tracked_state i915_upload_MODES4 = {
+   I915_NEW_BLEND | I915_NEW_DEPTH_STENCIL,
+   upload_MODES4
+};
+
+
+
+
+/***********************************************************************
+ */
+
+static void upload_BFO( struct i915_context *i915 )
+{
+   set_dynamic_indirect( i915,
+			 I915_DYNAMIC_BFO_0,
+			 &(i915->depth_stencil->bfo[0]),
+			 2 );
+}
+
+const struct i915_tracked_state i915_upload_BFO = {
+   I915_NEW_DEPTH_STENCIL,
+   upload_BFO
+};
+
+
+/***********************************************************************
+ */
+
+
+static void upload_BLENDCOLOR( struct i915_context *i915 )
+{
+   unsigned bc[2];
+
+   memset( bc, 0, sizeof(bc) );
+
+   /* I915_NEW_BLEND {_COLOR} 
+    */
+   {
+      const float *color = i915->blend_color.color;
+
+      bc[0] = _3DSTATE_CONST_BLEND_COLOR_CMD;
+      bc[1] = pack_ui32_float4( color[0],
+				color[1],
+				color[2], 
+				color[3] );
+   }
+
+   set_dynamic_indirect( i915, 
+			 I915_DYNAMIC_BC_0,
+			 bc,
+			 2 );
+}
+
+const struct i915_tracked_state i915_upload_BLENDCOLOR = {
+   I915_NEW_BLEND,
+   upload_BLENDCOLOR
+};
+
+/***********************************************************************
+ */
+
+
+static void upload_IAB( struct i915_context *i915 )
+{
+   unsigned iab = i915->blend->iab;
+
+
+   set_dynamic_indirect( i915,
+			 I915_DYNAMIC_IAB,
+			 &iab,
+			 1 );
+}
+
+const struct i915_tracked_state i915_upload_IAB = {
+   I915_NEW_BLEND,
+   upload_IAB
+};
+
+
+/***********************************************************************
+ */
+
+
+
+static void upload_DEPTHSCALE( struct i915_context *i915 )
+{
+   set_dynamic_indirect( i915,
+			 I915_DYNAMIC_DEPTHSCALE_0,
+			 &(i915->rasterizer->ds[0].u),
+			 2 );
+}
+
+const struct i915_tracked_state i915_upload_DEPTHSCALE = {
+   I915_NEW_RASTERIZER,
+   upload_DEPTHSCALE
+};
+
+
+
+/***********************************************************************
+ * Polygon stipple
+ *
+ * The i915 supports a 4x4 stipple natively, GL wants 32x32.
+ * Fortunately stipple is usually a repeating pattern.
+ *
+ * XXX: does stipple pattern need to be adjusted according to
+ * the window position?
+ *
+ * XXX: possibly need workaround for conform paths test. 
+ */
+
+static void upload_STIPPLE( struct i915_context *i915 )
+{
+   unsigned st[2];
+
+   st[0] = _3DSTATE_STIPPLE;
+   st[1] = 0;
+
+   /* I915_NEW_RASTERIZER
+    */
+   st[1] |= i915->rasterizer->st;
+
+
+   /* I915_NEW_STIPPLE
+    */
+   {
+      const ubyte *mask = (const ubyte *)i915->poly_stipple.stipple;
+      ubyte p[4];
+
+      p[0] = mask[12] & 0xf;
+      p[1] = mask[8] & 0xf;
+      p[2] = mask[4] & 0xf;
+      p[3] = mask[0] & 0xf;
+
+      /* Not sure what to do about fallbacks, so for now just dont:
+       */
+      st[1] |= ((p[0] << 0) |
+		(p[1] << 4) |
+		(p[2] << 8) | 
+		(p[3] << 12));
+   }
+
+
+   set_dynamic_indirect( i915, 
+			 I915_DYNAMIC_STP_0,
+			 &st[0],
+			 2 );
+}
+
+
+const struct i915_tracked_state i915_upload_STIPPLE = {
+   I915_NEW_RASTERIZER | I915_NEW_STIPPLE,
+   upload_STIPPLE
+};
+
+
+
+/***********************************************************************
+ * Scissor.
+ */
+static void upload_SCISSOR_ENABLE( struct i915_context *i915 )
+{
+   set_dynamic_indirect( i915,
+			 I915_DYNAMIC_SC_ENA_0,
+			 &(i915->rasterizer->sc[0]),
+			 1 );
+}
+
+const struct i915_tracked_state i915_upload_SCISSOR_ENABLE = {
+   I915_NEW_RASTERIZER,
+   upload_SCISSOR_ENABLE
+};
+
+
+
+static void upload_SCISSOR_RECT( struct i915_context *i915 )
+{
+   unsigned x1 = i915->scissor.minx;
+   unsigned y1 = i915->scissor.miny;
+   unsigned x2 = i915->scissor.maxx;
+   unsigned y2 = i915->scissor.maxy;
+   unsigned sc[3];
+ 
+   sc[0] = _3DSTATE_SCISSOR_RECT_0_CMD;
+   sc[1] = (y1 << 16) | (x1 & 0xffff);
+   sc[2] = (y2 << 16) | (x2 & 0xffff);
+
+   set_dynamic_indirect( i915, 
+			 I915_DYNAMIC_SC_RECT_0,
+			 &sc[0],
+			 3 );
+}
+
+
+const struct i915_tracked_state i915_upload_SCISSOR_RECT = {
+   I915_NEW_SCISSOR,
+   upload_SCISSOR_RECT
+};
+
+
+
+
+
+
+static const struct i915_tracked_state *atoms[] = {
+   &i915_upload_MODES4,
+   &i915_upload_BFO,
+   &i915_upload_BLENDCOLOR,
+   &i915_upload_IAB,
+   &i915_upload_DEPTHSCALE,
+   &i915_upload_STIPPLE,
+   &i915_upload_SCISSOR_ENABLE,
+   &i915_upload_SCISSOR_RECT
+};
+
+/* These will be dynamic indirect state commands, but for now just end
+ * up on the batch buffer with everything else.
+ */
+void i915_update_dynamic( struct i915_context *i915 )
+{
+   int i;
+
+   for (i = 0; i < Elements(atoms); i++)
+      if (i915->dirty & atoms[i]->dirty)
+	 atoms[i]->update( i915 );
+}
+