| /* |
| * Copyright © 2012 Intel Corporation |
| * |
| * 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 AUTHORS OR COPYRIGHT HOLDERS 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 "intel_batchbuffer.h" |
| #include "intel_fbo.h" |
| #include "brw_context.h" |
| #include "brw_defines.h" |
| #include "brw_state.h" |
| #include "main/stencil.h" |
| |
| static void |
| gen8_upload_wm_depth_stencil(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| uint32_t dw1 = 0, dw2 = 0, dw3 = 0; |
| |
| /* _NEW_BUFFERS */ |
| struct intel_renderbuffer *depth_irb = |
| intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_DEPTH); |
| |
| struct gl_stencil_attrib *stencil = &ctx->Stencil; |
| |
| /* _NEW_STENCIL | _NEW_BUFFERS */ |
| if (stencil->_Enabled) { |
| #define FUNC intel_translate_compare_func |
| #define OP intel_translate_stencil_op |
| |
| dw1 |= |
| GEN8_WM_DS_STENCIL_TEST_ENABLE | |
| FUNC(stencil->Function[0]) << GEN8_WM_DS_STENCIL_FUNC_SHIFT | |
| OP(stencil->FailFunc[0]) << GEN8_WM_DS_STENCIL_FAIL_OP_SHIFT | |
| OP(stencil->ZFailFunc[0]) << GEN8_WM_DS_Z_FAIL_OP_SHIFT | |
| OP(stencil->ZPassFunc[0]) << GEN8_WM_DS_Z_PASS_OP_SHIFT; |
| |
| if (stencil->_WriteEnabled) |
| dw1 |= GEN8_WM_DS_STENCIL_BUFFER_WRITE_ENABLE; |
| |
| dw2 |= |
| SET_FIELD(stencil->WriteMask[0] & 0xff, GEN8_WM_DS_STENCIL_WRITE_MASK) | |
| SET_FIELD(stencil->ValueMask[0] & 0xff, GEN8_WM_DS_STENCIL_TEST_MASK); |
| |
| if (stencil->_TestTwoSide) { |
| const int b = stencil->_BackFace; |
| |
| dw1 |= |
| GEN8_WM_DS_DOUBLE_SIDED_STENCIL_ENABLE | |
| FUNC(stencil->Function[b]) << GEN8_WM_DS_BF_STENCIL_FUNC_SHIFT | |
| OP(stencil->FailFunc[b]) << GEN8_WM_DS_BF_STENCIL_FAIL_OP_SHIFT | |
| OP(stencil->ZFailFunc[b]) << GEN8_WM_DS_BF_Z_FAIL_OP_SHIFT | |
| OP(stencil->ZPassFunc[b]) << GEN8_WM_DS_BF_Z_PASS_OP_SHIFT; |
| |
| dw2 |= SET_FIELD(stencil->WriteMask[b] & 0xff, |
| GEN8_WM_DS_BF_STENCIL_WRITE_MASK) | |
| SET_FIELD(stencil->ValueMask[b] & 0xff, |
| GEN8_WM_DS_BF_STENCIL_TEST_MASK); |
| } |
| |
| if (brw->gen >= 9) { |
| int stencil_ref = _mesa_get_stencil_ref(ctx, 0); |
| int backface_ref = _mesa_get_stencil_ref(ctx, ctx->Stencil._BackFace); |
| |
| dw3 = SET_FIELD(stencil_ref, GEN9_WM_DS_STENCIL_REF) | |
| SET_FIELD(backface_ref, GEN9_WM_DS_BF_STENCIL_REF); |
| } |
| } |
| |
| /* _NEW_DEPTH */ |
| if (ctx->Depth.Test && depth_irb) { |
| dw1 |= |
| GEN8_WM_DS_DEPTH_TEST_ENABLE | |
| FUNC(ctx->Depth.Func) << GEN8_WM_DS_DEPTH_FUNC_SHIFT; |
| |
| if (ctx->Depth.Mask) |
| dw1 |= GEN8_WM_DS_DEPTH_BUFFER_WRITE_ENABLE; |
| } |
| |
| int pkt_len = brw->gen >= 9 ? 4 : 3; |
| |
| BEGIN_BATCH(pkt_len); |
| OUT_BATCH(_3DSTATE_WM_DEPTH_STENCIL << 16 | (pkt_len - 2)); |
| OUT_BATCH(dw1); |
| OUT_BATCH(dw2); |
| if (pkt_len > 3) { |
| OUT_BATCH(dw3); |
| } |
| ADVANCE_BATCH(); |
| } |
| |
| const struct brw_tracked_state gen8_wm_depth_stencil = { |
| .dirty = { |
| .mesa = _NEW_BUFFERS | |
| _NEW_DEPTH | |
| _NEW_STENCIL, |
| .brw = BRW_NEW_BLORP | |
| BRW_NEW_CONTEXT, |
| }, |
| .emit = gen8_upload_wm_depth_stencil, |
| }; |