1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ 2 3 /* 4 * Copyright (C) 2014 Rob Clark <robclark (at) freedesktop.org> 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the next 14 * paragraph) shall be included in all copies or substantial portions of the 15 * Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 * 25 * Authors: 26 * Rob Clark <robclark (at) freedesktop.org> 27 */ 28 29 30 #include "pipe/p_state.h" 31 #include "util/u_string.h" 32 #include "util/u_memory.h" 33 34 #include "fd4_zsa.h" 35 #include "fd4_context.h" 36 #include "fd4_format.h" 37 38 void * 39 fd4_zsa_state_create(struct pipe_context *pctx, 40 const struct pipe_depth_stencil_alpha_state *cso) 41 { 42 struct fd4_zsa_stateobj *so; 43 44 so = CALLOC_STRUCT(fd4_zsa_stateobj); 45 if (!so) 46 return NULL; 47 48 so->base = *cso; 49 50 so->rb_depth_control |= 51 A4XX_RB_DEPTH_CONTROL_ZFUNC(cso->depth.func); /* maps 1:1 */ 52 53 if (cso->depth.enabled) 54 so->rb_depth_control |= 55 A4XX_RB_DEPTH_CONTROL_Z_ENABLE | 56 A4XX_RB_DEPTH_CONTROL_Z_TEST_ENABLE; 57 58 if (cso->depth.writemask) 59 so->rb_depth_control |= A4XX_RB_DEPTH_CONTROL_Z_WRITE_ENABLE; 60 61 if (cso->stencil[0].enabled) { 62 const struct pipe_stencil_state *s = &cso->stencil[0]; 63 64 so->rb_stencil_control |= 65 A4XX_RB_STENCIL_CONTROL_STENCIL_READ | 66 A4XX_RB_STENCIL_CONTROL_STENCIL_ENABLE | 67 A4XX_RB_STENCIL_CONTROL_FUNC(s->func) | /* maps 1:1 */ 68 A4XX_RB_STENCIL_CONTROL_FAIL(fd_stencil_op(s->fail_op)) | 69 A4XX_RB_STENCIL_CONTROL_ZPASS(fd_stencil_op(s->zpass_op)) | 70 A4XX_RB_STENCIL_CONTROL_ZFAIL(fd_stencil_op(s->zfail_op)); 71 so->rb_stencil_control2 |= 72 A4XX_RB_STENCIL_CONTROL2_STENCIL_BUFFER; 73 so->rb_stencilrefmask |= 74 0xff000000 | /* ??? */ 75 A4XX_RB_STENCILREFMASK_STENCILWRITEMASK(s->writemask) | 76 A4XX_RB_STENCILREFMASK_STENCILMASK(s->valuemask); 77 78 if (cso->stencil[1].enabled) { 79 const struct pipe_stencil_state *bs = &cso->stencil[1]; 80 81 so->rb_stencil_control |= 82 A4XX_RB_STENCIL_CONTROL_STENCIL_ENABLE_BF | 83 A4XX_RB_STENCIL_CONTROL_FUNC_BF(bs->func) | /* maps 1:1 */ 84 A4XX_RB_STENCIL_CONTROL_FAIL_BF(fd_stencil_op(bs->fail_op)) | 85 A4XX_RB_STENCIL_CONTROL_ZPASS_BF(fd_stencil_op(bs->zpass_op)) | 86 A4XX_RB_STENCIL_CONTROL_ZFAIL_BF(fd_stencil_op(bs->zfail_op)); 87 so->rb_stencilrefmask_bf |= 88 0xff000000 | /* ??? */ 89 A4XX_RB_STENCILREFMASK_BF_STENCILWRITEMASK(bs->writemask) | 90 A4XX_RB_STENCILREFMASK_BF_STENCILMASK(bs->valuemask); 91 } 92 } 93 94 if (cso->alpha.enabled) { 95 uint32_t ref = cso->alpha.ref_value * 255.0; 96 so->gras_alpha_control = 97 A4XX_GRAS_ALPHA_CONTROL_ALPHA_TEST_ENABLE; 98 so->rb_alpha_control = 99 A4XX_RB_ALPHA_CONTROL_ALPHA_TEST | 100 A4XX_RB_ALPHA_CONTROL_ALPHA_REF(ref) | 101 A4XX_RB_ALPHA_CONTROL_ALPHA_TEST_FUNC(cso->alpha.func); 102 so->rb_depth_control |= 103 A4XX_RB_DEPTH_CONTROL_EARLY_Z_DISABLE; 104 } 105 106 return so; 107 } 108
