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-rw-r--r--src/mesa/pipe/i965simple/brw_cc.c268
1 files changed, 268 insertions, 0 deletions
diff --git a/src/mesa/pipe/i965simple/brw_cc.c b/src/mesa/pipe/i965simple/brw_cc.c
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+++ b/src/mesa/pipe/i965simple/brw_cc.c
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+/*
+ 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 "pipe/p_util.h"
+
+#include "brw_context.h"
+#include "brw_state.h"
+#include "brw_defines.h"
+#include "brw_util.h"
+
+
+static int brw_translate_compare_func(int func)
+{
+ switch(func) {
+ case PIPE_FUNC_NEVER:
+ return BRW_COMPAREFUNCTION_NEVER;
+ case PIPE_FUNC_LESS:
+ return BRW_COMPAREFUNCTION_LESS;
+ case PIPE_FUNC_LEQUAL:
+ return BRW_COMPAREFUNCTION_LEQUAL;
+ case PIPE_FUNC_GREATER:
+ return BRW_COMPAREFUNCTION_GREATER;
+ case PIPE_FUNC_GEQUAL:
+ return BRW_COMPAREFUNCTION_GEQUAL;
+ case PIPE_FUNC_NOTEQUAL:
+ return BRW_COMPAREFUNCTION_NOTEQUAL;
+ case PIPE_FUNC_EQUAL:
+ return BRW_COMPAREFUNCTION_EQUAL;
+ case PIPE_FUNC_ALWAYS:
+ return BRW_COMPAREFUNCTION_ALWAYS;
+ }
+
+ fprintf(stderr, "Unknown value in %s: %x\n", __FUNCTION__, func);
+ return BRW_COMPAREFUNCTION_ALWAYS;
+}
+
+static int brw_translate_stencil_op(int op)
+{
+ switch(op) {
+ case PIPE_STENCIL_OP_KEEP:
+ return BRW_STENCILOP_KEEP;
+ case PIPE_STENCIL_OP_ZERO:
+ return BRW_STENCILOP_ZERO;
+ case PIPE_STENCIL_OP_REPLACE:
+ return BRW_STENCILOP_REPLACE;
+ case PIPE_STENCIL_OP_INCR:
+ return BRW_STENCILOP_INCRSAT;
+ case PIPE_STENCIL_OP_DECR:
+ return BRW_STENCILOP_DECRSAT;
+ case PIPE_STENCIL_OP_INCR_WRAP:
+ return BRW_STENCILOP_INCR;
+ case PIPE_STENCIL_OP_DECR_WRAP:
+ return BRW_STENCILOP_DECR;
+ case PIPE_STENCIL_OP_INVERT:
+ return BRW_STENCILOP_INVERT;
+ default:
+ return BRW_STENCILOP_ZERO;
+ }
+}
+
+
+static int brw_translate_logic_op(int opcode)
+{
+ switch(opcode) {
+ case PIPE_LOGICOP_CLEAR:
+ return BRW_LOGICOPFUNCTION_CLEAR;
+ case PIPE_LOGICOP_AND:
+ return BRW_LOGICOPFUNCTION_AND;
+ case PIPE_LOGICOP_AND_REVERSE:
+ return BRW_LOGICOPFUNCTION_AND_REVERSE;
+ case PIPE_LOGICOP_COPY:
+ return BRW_LOGICOPFUNCTION_COPY;
+ case PIPE_LOGICOP_COPY_INVERTED:
+ return BRW_LOGICOPFUNCTION_COPY_INVERTED;
+ case PIPE_LOGICOP_AND_INVERTED:
+ return BRW_LOGICOPFUNCTION_AND_INVERTED;
+ case PIPE_LOGICOP_NOOP:
+ return BRW_LOGICOPFUNCTION_NOOP;
+ case PIPE_LOGICOP_XOR:
+ return BRW_LOGICOPFUNCTION_XOR;
+ case PIPE_LOGICOP_OR:
+ return BRW_LOGICOPFUNCTION_OR;
+ case PIPE_LOGICOP_OR_INVERTED:
+ return BRW_LOGICOPFUNCTION_OR_INVERTED;
+ case PIPE_LOGICOP_NOR:
+ return BRW_LOGICOPFUNCTION_NOR;
+ case PIPE_LOGICOP_EQUIV:
+ return BRW_LOGICOPFUNCTION_EQUIV;
+ case PIPE_LOGICOP_INVERT:
+ return BRW_LOGICOPFUNCTION_INVERT;
+ case PIPE_LOGICOP_OR_REVERSE:
+ return BRW_LOGICOPFUNCTION_OR_REVERSE;
+ case PIPE_LOGICOP_NAND:
+ return BRW_LOGICOPFUNCTION_NAND;
+ case PIPE_LOGICOP_SET:
+ return BRW_LOGICOPFUNCTION_SET;
+ default:
+ return BRW_LOGICOPFUNCTION_SET;
+ }
+}
+
+
+static void upload_cc_vp( struct brw_context *brw )
+{
+ struct brw_cc_viewport ccv;
+
+ memset(&ccv, 0, sizeof(ccv));
+
+ ccv.min_depth = 0.0;
+ ccv.max_depth = 1.0;
+
+ brw->cc.vp_gs_offset = brw_cache_data( &brw->cache[BRW_CC_VP], &ccv );
+}
+
+const struct brw_tracked_state brw_cc_vp = {
+ .dirty = {
+ .brw = BRW_NEW_CONTEXT,
+ .cache = 0
+ },
+ .update = upload_cc_vp
+};
+
+
+static void upload_cc_unit( struct brw_context *brw )
+{
+ struct brw_cc_unit_state cc;
+
+ memset(&cc, 0, sizeof(cc));
+
+ /* BRW_NEW_DEPTH_STENCIL */
+ if (brw->attribs.DepthStencil->stencil.front_enabled) {
+ cc.cc0.stencil_enable = brw->attribs.DepthStencil->stencil.front_enabled;
+ cc.cc0.stencil_func = brw_translate_compare_func(brw->attribs.DepthStencil->stencil.front_func);
+ cc.cc0.stencil_fail_op = brw_translate_stencil_op(brw->attribs.DepthStencil->stencil.front_fail_op);
+ cc.cc0.stencil_pass_depth_fail_op = brw_translate_stencil_op(
+ brw->attribs.DepthStencil->stencil.front_zfail_op);
+ cc.cc0.stencil_pass_depth_pass_op = brw_translate_stencil_op(
+ brw->attribs.DepthStencil->stencil.front_zpass_op);
+ cc.cc1.stencil_ref = brw->attribs.DepthStencil->stencil.ref_value[0];
+ cc.cc1.stencil_write_mask = brw->attribs.DepthStencil->stencil.write_mask[0];
+ cc.cc1.stencil_test_mask = brw->attribs.DepthStencil->stencil.value_mask[0];
+
+ if (brw->attribs.DepthStencil->stencil.back_enabled) {
+ cc.cc0.bf_stencil_enable = brw->attribs.DepthStencil->stencil.back_enabled;
+ cc.cc0.bf_stencil_func = brw_translate_compare_func(
+ brw->attribs.DepthStencil->stencil.back_func);
+ cc.cc0.bf_stencil_fail_op = brw_translate_stencil_op(
+ brw->attribs.DepthStencil->stencil.back_fail_op);
+ cc.cc0.bf_stencil_pass_depth_fail_op = brw_translate_stencil_op(
+ brw->attribs.DepthStencil->stencil.back_zfail_op);
+ cc.cc0.bf_stencil_pass_depth_pass_op = brw_translate_stencil_op(
+ brw->attribs.DepthStencil->stencil.back_zpass_op);
+ cc.cc1.bf_stencil_ref = brw->attribs.DepthStencil->stencil.ref_value[1];
+ cc.cc2.bf_stencil_write_mask = brw->attribs.DepthStencil->stencil.write_mask[1];
+ cc.cc2.bf_stencil_test_mask = brw->attribs.DepthStencil->stencil.value_mask[1];
+ }
+
+ /* Not really sure about this:
+ */
+ if (brw->attribs.DepthStencil->stencil.write_mask[0] ||
+ (brw->attribs.DepthStencil->stencil.back_enabled &&
+ brw->attribs.DepthStencil->stencil.write_mask[1]))
+ cc.cc0.stencil_write_enable = 1;
+ }
+
+ /* BRW_NEW_BLEND */
+ if (brw->attribs.Blend->logicop_enable) {
+ cc.cc2.logicop_enable = 1;
+ cc.cc5.logicop_func = brw_translate_logic_op( brw->attribs.Blend->logicop_func );
+ }
+ else if (brw->attribs.Blend->blend_enable) {
+ int eqRGB = brw->attribs.Blend->rgb_func;
+ int eqA = brw->attribs.Blend->alpha_func;
+ int srcRGB = brw->attribs.Blend->rgb_src_factor;
+ int dstRGB = brw->attribs.Blend->rgb_dst_factor;
+ int srcA = brw->attribs.Blend->alpha_src_factor;
+ int dstA = brw->attribs.Blend->alpha_dst_factor;
+
+ if (eqRGB == PIPE_BLEND_MIN || eqRGB == PIPE_BLEND_MAX) {
+ srcRGB = dstRGB = PIPE_BLENDFACTOR_ONE;
+ }
+
+ if (eqA == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MAX) {
+ srcA = dstA = PIPE_BLENDFACTOR_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);
+ }
+
+ /* BRW_NEW_ALPHATEST
+ */
+ if (brw->attribs.AlphaTest->enabled) {
+ cc.cc3.alpha_test = 1;
+ cc.cc3.alpha_test_func = brw_translate_compare_func(brw->attribs.AlphaTest->func);
+
+ UNCLAMPED_FLOAT_TO_UBYTE(cc.cc7.alpha_ref.ub[0], brw->attribs.AlphaTest->ref);
+
+ cc.cc3.alpha_test_format = BRW_ALPHATEST_FORMAT_UNORM8;
+ }
+
+ if (brw->attribs.Blend->dither) {
+ cc.cc5.dither_enable = 1;
+ cc.cc6.y_dither_offset = 0;
+ cc.cc6.x_dither_offset = 0;
+ }
+
+ if (brw->attribs.DepthStencil->depth.enabled) {
+ cc.cc2.depth_test = brw->attribs.DepthStencil->depth.enabled;
+ cc.cc2.depth_test_function = brw_translate_compare_func(brw->attribs.DepthStencil->depth.func);
+ cc.cc2.depth_write_enable = brw->attribs.DepthStencil->depth.writemask;
+ }
+
+ /* CACHE_NEW_CC_VP */
+ cc.cc4.cc_viewport_state_offset = brw->cc.vp_gs_offset >> 5;
+
+ if (BRW_DEBUG & DEBUG_STATS)
+ cc.cc5.statistics_enable = 1;
+
+ brw->cc.state_gs_offset = brw_cache_data( &brw->cache[BRW_CC_UNIT], &cc );
+}
+
+const struct brw_tracked_state brw_cc_unit = {
+ .dirty = {
+ .brw = BRW_NEW_DEPTH_STENCIL | BRW_NEW_BLEND | BRW_NEW_ALPHA_TEST,
+ .cache = CACHE_NEW_CC_VP
+ },
+ .update = upload_cc_unit
+};
+