diff options
Diffstat (limited to 'src/gallium/drivers/i965simple/brw_cc.c')
| -rw-r--r-- | src/gallium/drivers/i965simple/brw_cc.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965simple/brw_cc.c b/src/gallium/drivers/i965simple/brw_cc.c new file mode 100644 index 00000000000..337e4f95f69 --- /dev/null +++ b/src/gallium/drivers/i965simple/brw_cc.c @@ -0,0 +1,269 @@ +/* + 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; + } + + debug_printf("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_SCENE, + .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[0].enabled) { + cc.cc0.stencil_enable = brw->attribs.DepthStencil->stencil[0].enabled; + cc.cc0.stencil_func = brw_translate_compare_func(brw->attribs.DepthStencil->stencil[0].func); + cc.cc0.stencil_fail_op = brw_translate_stencil_op(brw->attribs.DepthStencil->stencil[0].fail_op); + cc.cc0.stencil_pass_depth_fail_op = brw_translate_stencil_op( + brw->attribs.DepthStencil->stencil[0].zfail_op); + cc.cc0.stencil_pass_depth_pass_op = brw_translate_stencil_op( + brw->attribs.DepthStencil->stencil[0].zpass_op); + cc.cc1.stencil_ref = brw->attribs.DepthStencil->stencil[0].ref_value; + cc.cc1.stencil_write_mask = brw->attribs.DepthStencil->stencil[0].write_mask; + cc.cc1.stencil_test_mask = brw->attribs.DepthStencil->stencil[0].value_mask; + + if (brw->attribs.DepthStencil->stencil[1].enabled) { + cc.cc0.bf_stencil_enable = brw->attribs.DepthStencil->stencil[1].enabled; + cc.cc0.bf_stencil_func = brw_translate_compare_func( + brw->attribs.DepthStencil->stencil[1].func); + cc.cc0.bf_stencil_fail_op = brw_translate_stencil_op( + brw->attribs.DepthStencil->stencil[1].fail_op); + cc.cc0.bf_stencil_pass_depth_fail_op = brw_translate_stencil_op( + brw->attribs.DepthStencil->stencil[1].zfail_op); + cc.cc0.bf_stencil_pass_depth_pass_op = brw_translate_stencil_op( + brw->attribs.DepthStencil->stencil[1].zpass_op); + cc.cc1.bf_stencil_ref = brw->attribs.DepthStencil->stencil[1].ref_value; + cc.cc2.bf_stencil_write_mask = brw->attribs.DepthStencil->stencil[1].write_mask; + cc.cc2.bf_stencil_test_mask = brw->attribs.DepthStencil->stencil[1].value_mask; + } + + /* Not really sure about this: + */ + if (brw->attribs.DepthStencil->stencil[0].write_mask || + brw->attribs.DepthStencil->stencil[1].write_mask) + 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.DepthStencil->alpha.enabled) { + cc.cc3.alpha_test = 1; + cc.cc3.alpha_test_func = + brw_translate_compare_func(brw->attribs.DepthStencil->alpha.func); + + UNCLAMPED_FLOAT_TO_UBYTE(cc.cc7.alpha_ref.ub[0], + brw->attribs.DepthStencil->alpha.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 +}; + |