i965g: re-starting from the dri driver

1 files changed, 297 insertions, 0 deletions

diff --git a/src/gallium/drivers/i965/brw_cc.c b/src/gallium/drivers/i965/brw_cc.c
new file mode 100644
index 0000000000..1088a7a607
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_cc.c
@@ -0,0 +1,297 @@
+/*
+ Copyright (C) Intel Corp.  2006.  All Rights Reserved.
+ Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ develop this 3D driver.
+ 
+ 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, sublicense, 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 NONINFRINGEMENT.
+ IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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.
+ 
+ **********************************************************************/
+ /*
+  * Authors:
+  *   Keith Whitwell <keith@tungstengraphics.com>
+  */
+
+
+#include "brw_context.h"
+#include "brw_state.h"
+#include "brw_defines.h"
+#include "brw_util.h"
+#include "main/macros.h"
+#include "main/enums.h"
+
+static void prepare_cc_vp( struct brw_context *brw )
+{
+   GLcontext *ctx = &brw->intel.ctx;
+   struct brw_cc_viewport ccv;
+
+   memset(&ccv, 0, sizeof(ccv));
+
+   /* _NEW_VIEWPORT */
+   ccv.min_depth = ctx->Viewport.Near;
+   ccv.max_depth = ctx->Viewport.Far;
+
+   dri_bo_unreference(brw->cc.vp_bo);
+   brw->cc.vp_bo = brw_cache_data( &brw->cache, BRW_CC_VP, &ccv, NULL, 0 );
+}
+
+const struct brw_tracked_state brw_cc_vp = {
+   .dirty = {
+      .mesa = _NEW_VIEWPORT,
+      .brw = BRW_NEW_CONTEXT,
+      .cache = 0
+   },
+   .prepare = prepare_cc_vp
+};
+
+struct brw_cc_unit_key {
+   GLboolean stencil, stencil_two_side, color_blend, alpha_enabled;
+
+   GLenum stencil_func[2], stencil_fail_op[2];
+   GLenum stencil_pass_depth_fail_op[2], stencil_pass_depth_pass_op[2];
+   GLubyte stencil_ref[2], stencil_write_mask[2], stencil_test_mask[2];
+   GLenum logic_op;
+
+   GLenum blend_eq_rgb, blend_eq_a;
+   GLenum blend_src_rgb, blend_src_a;
+   GLenum blend_dst_rgb, blend_dst_a;
+
+   GLenum alpha_func;
+   GLclampf alpha_ref;
+
+   GLboolean dither;
+
+   GLboolean depth_test, depth_write;
+   GLenum depth_func;
+};
+
+static void
+cc_unit_populate_key(struct brw_context *brw, struct brw_cc_unit_key *key)
+{
+   GLcontext *ctx = &brw->intel.ctx;
+   const unsigned back = ctx->Stencil._BackFace;
+
+   memset(key, 0, sizeof(*key));
+
+   key->stencil = ctx->Stencil._Enabled;
+   key->stencil_two_side = ctx->Stencil._TestTwoSide;
+
+   if (key->stencil) {
+      key->stencil_func[0] = ctx->Stencil.Function[0];
+      key->stencil_fail_op[0] = ctx->Stencil.FailFunc[0];
+      key->stencil_pass_depth_fail_op[0] = ctx->Stencil.ZFailFunc[0];
+      key->stencil_pass_depth_pass_op[0] = ctx->Stencil.ZPassFunc[0];
+      key->stencil_ref[0] = ctx->Stencil.Ref[0];
+      key->stencil_write_mask[0] = ctx->Stencil.WriteMask[0];
+      key->stencil_test_mask[0] = ctx->Stencil.ValueMask[0];
+   }
+   if (key->stencil_two_side) {
+      key->stencil_func[1] = ctx->Stencil.Function[back];
+      key->stencil_fail_op[1] = ctx->Stencil.FailFunc[back];
+      key->stencil_pass_depth_fail_op[1] = ctx->Stencil.ZFailFunc[back];
+      key->stencil_pass_depth_pass_op[1] = ctx->Stencil.ZPassFunc[back];
+      key->stencil_ref[1] = ctx->Stencil.Ref[back];
+      key->stencil_write_mask[1] = ctx->Stencil.WriteMask[back];
+      key->stencil_test_mask[1] = ctx->Stencil.ValueMask[back];
+   }
+
+   if (ctx->Color._LogicOpEnabled)
+      key->logic_op = ctx->Color.LogicOp;
+   else
+      key->logic_op = GL_COPY;
+
+   key->color_blend = ctx->Color.BlendEnabled;
+   if (key->color_blend) {
+      key->blend_eq_rgb = ctx->Color.BlendEquationRGB;
+      key->blend_eq_a = ctx->Color.BlendEquationA;
+      key->blend_src_rgb = ctx->Color.BlendSrcRGB;
+      key->blend_dst_rgb = ctx->Color.BlendDstRGB;
+      key->blend_src_a = ctx->Color.BlendSrcA;
+      key->blend_dst_a = ctx->Color.BlendDstA;
+   }
+
+   key->alpha_enabled = ctx->Color.AlphaEnabled;
+   if (key->alpha_enabled) {
+      key->alpha_func = ctx->Color.AlphaFunc;
+      key->alpha_ref = ctx->Color.AlphaRef;
+   }
+
+   key->dither = ctx->Color.DitherFlag;
+
+   key->depth_test = ctx->Depth.Test;
+   if (key->depth_test) {
+      key->depth_func = ctx->Depth.Func;
+      key->depth_write = ctx->Depth.Mask;
+   }
+}
+
+/**
+ * Creates the state cache entry for the given CC unit key.
+ */
+static dri_bo *
+cc_unit_create_from_key(struct brw_context *brw, struct brw_cc_unit_key *key)
+{
+   struct brw_cc_unit_state cc;
+   dri_bo *bo;
+
+   memset(&cc, 0, sizeof(cc));
+
+   /* _NEW_STENCIL */
+   if (key->stencil) {
+      cc.cc0.stencil_enable = 1;
+      cc.cc0.stencil_func =
+	 intel_translate_compare_func(key->stencil_func[0]);
+      cc.cc0.stencil_fail_op =
+	 intel_translate_stencil_op(key->stencil_fail_op[0]);
+      cc.cc0.stencil_pass_depth_fail_op =
+	 intel_translate_stencil_op(key->stencil_pass_depth_fail_op[0]);
+      cc.cc0.stencil_pass_depth_pass_op =
+	 intel_translate_stencil_op(key->stencil_pass_depth_pass_op[0]);
+      cc.cc1.stencil_ref = key->stencil_ref[0];
+      cc.cc1.stencil_write_mask = key->stencil_write_mask[0];
+      cc.cc1.stencil_test_mask = key->stencil_test_mask[0];
+
+      if (key->stencil_two_side) {
+	 cc.cc0.bf_stencil_enable = 1;
+	 cc.cc0.bf_stencil_func =
+	    intel_translate_compare_func(key->stencil_func[1]);
+	 cc.cc0.bf_stencil_fail_op =
+	    intel_translate_stencil_op(key->stencil_fail_op[1]);
+	 cc.cc0.bf_stencil_pass_depth_fail_op =
+	    intel_translate_stencil_op(key->stencil_pass_depth_fail_op[1]);
+	 cc.cc0.bf_stencil_pass_depth_pass_op =
+	    intel_translate_stencil_op(key->stencil_pass_depth_pass_op[1]);
+	 cc.cc1.bf_stencil_ref = key->stencil_ref[1];
+	 cc.cc2.bf_stencil_write_mask = key->stencil_write_mask[1];
+	 cc.cc2.bf_stencil_test_mask = key->stencil_test_mask[1];
+      }
+
+      /* Not really sure about this:
+       */
+      if (key->stencil_write_mask[0] ||
+	  (key->stencil_two_side && key->stencil_write_mask[1]))
+	 cc.cc0.stencil_write_enable = 1;
+   }
+
+   /* _NEW_COLOR */
+   if (key->logic_op != GL_COPY) {
+      cc.cc2.logicop_enable = 1;
+      cc.cc5.logicop_func = intel_translate_logic_op(key->logic_op);
+   } else if (key->color_blend) {
+      GLenum eqRGB = key->blend_eq_rgb;
+      GLenum eqA = key->blend_eq_a;
+      GLenum srcRGB = key->blend_src_rgb;
+      GLenum dstRGB = key->blend_dst_rgb;
+      GLenum srcA = key->blend_src_a;
+      GLenum dstA = key->blend_dst_a;
+
+      if (eqRGB == GL_MIN || eqRGB == GL_MAX) {
+	 srcRGB = dstRGB = GL_ONE;
+      }
+
+      if (eqA == GL_MIN || eqA == GL_MAX) {
+	 srcA = dstA = GL_ONE;
+      }
+
+      cc.cc6.dest_blend_factor = brw_translate_blend_factor(dstRGB);
+      cc.cc6.src_blend_factor = brw_translate_blend_factor(srcRGB);
+      cc.cc6.blend_function = brw_translate_blend_equation(eqRGB);
+
+      cc.cc5.ia_dest_blend_factor = brw_translate_blend_factor(dstA);
+      cc.cc5.ia_src_blend_factor = brw_translate_blend_factor(srcA);
+      cc.cc5.ia_blend_function = brw_translate_blend_equation(eqA);
+
+      cc.cc3.blend_enable = 1;
+      cc.cc3.ia_blend_enable = (srcA != srcRGB ||
+				dstA != dstRGB ||
+				eqA != eqRGB);
+   }
+
+   if (key->alpha_enabled) {
+      cc.cc3.alpha_test = 1;
+      cc.cc3.alpha_test_func = intel_translate_compare_func(key->alpha_func);
+      cc.cc3.alpha_test_format = BRW_ALPHATEST_FORMAT_UNORM8;
+
+      UNCLAMPED_FLOAT_TO_UBYTE(cc.cc7.alpha_ref.ub[0], key->alpha_ref);
+   }
+
+   if (key->dither) {
+      cc.cc5.dither_enable = 1;
+      cc.cc6.y_dither_offset = 0;
+      cc.cc6.x_dither_offset = 0;
+   }
+
+   /* _NEW_DEPTH */
+   if (key->depth_test) {
+      cc.cc2.depth_test = 1;
+      cc.cc2.depth_test_function = intel_translate_compare_func(key->depth_func);
+      cc.cc2.depth_write_enable = key->depth_write;
+   }
+
+   /* CACHE_NEW_CC_VP */
+   cc.cc4.cc_viewport_state_offset = brw->cc.vp_bo->offset >> 5; /* reloc */
+
+   if (INTEL_DEBUG & DEBUG_STATS)
+      cc.cc5.statistics_enable = 1;
+
+   bo = brw_upload_cache(&brw->cache, BRW_CC_UNIT,
+			 key, sizeof(*key),
+			 &brw->cc.vp_bo, 1,
+			 &cc, sizeof(cc),
+			 NULL, NULL);
+
+   /* Emit CC viewport relocation */
+   dri_bo_emit_reloc(bo,
+		     I915_GEM_DOMAIN_INSTRUCTION,
+		     0,
+		     0,
+		     offsetof(struct brw_cc_unit_state, cc4),
+		     brw->cc.vp_bo);
+
+   return bo;
+}
+
+static void prepare_cc_unit( struct brw_context *brw )
+{
+   struct brw_cc_unit_key key;
+
+   cc_unit_populate_key(brw, &key);
+
+   dri_bo_unreference(brw->cc.state_bo);
+   brw->cc.state_bo = brw_search_cache(&brw->cache, BRW_CC_UNIT,
+				       &key, sizeof(key),
+				       &brw->cc.vp_bo, 1,
+				       NULL);
+
+   if (brw->cc.state_bo == NULL)
+      brw->cc.state_bo = cc_unit_create_from_key(brw, &key);
+}
+
+const struct brw_tracked_state brw_cc_unit = {
+   .dirty = {
+      .mesa = _NEW_STENCIL | _NEW_COLOR | _NEW_DEPTH,
+      .brw = 0,
+      .cache = CACHE_NEW_CC_VP
+   },
+   .prepare = prepare_cc_unit,
+};
+
+
+