1/*
2 * Copyright © 2015 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#include <assert.h>
25#include <stdbool.h>
26#include <string.h>
27#include <unistd.h>
28#include <fcntl.h>
29
30#include "anv_private.h"
31
32#include "common/gen_sample_positions.h"
33#include "genxml/gen_macros.h"
34#include "genxml/genX_pack.h"
35
36VkResult
37genX(init_device_state)(struct anv_device *device)
38{
39   GENX(MEMORY_OBJECT_CONTROL_STATE_pack)(NULL, &device->default_mocs,
40                                          &GENX(MOCS));
41
42   struct anv_batch batch;
43
44   uint32_t cmds[64];
45   batch.start = batch.next = cmds;
46   batch.end = (void *) cmds + sizeof(cmds);
47
48   anv_batch_emit(&batch, GENX(PIPELINE_SELECT), ps) {
49#if GEN_GEN >= 9
50      ps.MaskBits = 3;
51#endif
52      ps.PipelineSelection = _3D;
53   }
54
55   anv_batch_emit(&batch, GENX(3DSTATE_VF_STATISTICS), vfs)
56      vfs.StatisticsEnable = true;
57
58   anv_batch_emit(&batch, GENX(3DSTATE_AA_LINE_PARAMETERS), aa);
59
60   anv_batch_emit(&batch, GENX(3DSTATE_DRAWING_RECTANGLE), rect) {
61      rect.ClippedDrawingRectangleYMin = 0;
62      rect.ClippedDrawingRectangleXMin = 0;
63      rect.ClippedDrawingRectangleYMax = UINT16_MAX;
64      rect.ClippedDrawingRectangleXMax = UINT16_MAX;
65      rect.DrawingRectangleOriginY = 0;
66      rect.DrawingRectangleOriginX = 0;
67   }
68
69#if GEN_GEN >= 8
70   anv_batch_emit(&batch, GENX(3DSTATE_WM_CHROMAKEY), ck);
71
72   /* See the Vulkan 1.0 spec Table 24.1 "Standard sample locations" and
73    * VkPhysicalDeviceFeatures::standardSampleLocations.
74    */
75   anv_batch_emit(&batch, GENX(3DSTATE_SAMPLE_PATTERN), sp) {
76      GEN_SAMPLE_POS_1X(sp._1xSample);
77      GEN_SAMPLE_POS_2X(sp._2xSample);
78      GEN_SAMPLE_POS_4X(sp._4xSample);
79      GEN_SAMPLE_POS_8X(sp._8xSample);
80#if GEN_GEN >= 9
81      GEN_SAMPLE_POS_16X(sp._16xSample);
82#endif
83   }
84#endif
85
86   anv_batch_emit(&batch, GENX(MI_BATCH_BUFFER_END), bbe);
87
88   assert(batch.next <= batch.end);
89
90   return anv_device_submit_simple_batch(device, &batch);
91}
92
93static inline uint32_t
94vk_to_gen_tex_filter(VkFilter filter, bool anisotropyEnable)
95{
96   switch (filter) {
97   default:
98      assert(!"Invalid filter");
99   case VK_FILTER_NEAREST:
100      return anisotropyEnable ? MAPFILTER_ANISOTROPIC : MAPFILTER_NEAREST;
101   case VK_FILTER_LINEAR:
102      return anisotropyEnable ? MAPFILTER_ANISOTROPIC : MAPFILTER_LINEAR;
103   }
104}
105
106static inline uint32_t
107vk_to_gen_max_anisotropy(float ratio)
108{
109   return (anv_clamp_f(ratio, 2, 16) - 2) / 2;
110}
111
112static const uint32_t vk_to_gen_mipmap_mode[] = {
113   [VK_SAMPLER_MIPMAP_MODE_NEAREST]          = MIPFILTER_NEAREST,
114   [VK_SAMPLER_MIPMAP_MODE_LINEAR]           = MIPFILTER_LINEAR
115};
116
117static const uint32_t vk_to_gen_tex_address[] = {
118   [VK_SAMPLER_ADDRESS_MODE_REPEAT]          = TCM_WRAP,
119   [VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT] = TCM_MIRROR,
120   [VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE]   = TCM_CLAMP,
121   [VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE] = TCM_MIRROR_ONCE,
122   [VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER] = TCM_CLAMP_BORDER,
123};
124
125/* Vulkan specifies the result of shadow comparisons as:
126 *     1     if   ref <op> texel,
127 *     0     otherwise.
128 *
129 * The hardware does:
130 *     0     if texel <op> ref,
131 *     1     otherwise.
132 *
133 * So, these look a bit strange because there's both a negation
134 * and swapping of the arguments involved.
135 */
136static const uint32_t vk_to_gen_shadow_compare_op[] = {
137   [VK_COMPARE_OP_NEVER]                        = PREFILTEROPALWAYS,
138   [VK_COMPARE_OP_LESS]                         = PREFILTEROPLEQUAL,
139   [VK_COMPARE_OP_EQUAL]                        = PREFILTEROPNOTEQUAL,
140   [VK_COMPARE_OP_LESS_OR_EQUAL]                = PREFILTEROPLESS,
141   [VK_COMPARE_OP_GREATER]                      = PREFILTEROPGEQUAL,
142   [VK_COMPARE_OP_NOT_EQUAL]                    = PREFILTEROPEQUAL,
143   [VK_COMPARE_OP_GREATER_OR_EQUAL]             = PREFILTEROPGREATER,
144   [VK_COMPARE_OP_ALWAYS]                       = PREFILTEROPNEVER,
145};
146
147VkResult genX(CreateSampler)(
148    VkDevice                                    _device,
149    const VkSamplerCreateInfo*                  pCreateInfo,
150    const VkAllocationCallbacks*                pAllocator,
151    VkSampler*                                  pSampler)
152{
153   ANV_FROM_HANDLE(anv_device, device, _device);
154   struct anv_sampler *sampler;
155
156   assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO);
157
158   sampler = vk_alloc2(&device->alloc, pAllocator, sizeof(*sampler), 8,
159                        VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
160   if (!sampler)
161      return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
162
163   uint32_t border_color_offset = device->border_colors.offset +
164                                  pCreateInfo->borderColor * 64;
165
166   bool enable_min_filter_addr_rounding =
167      pCreateInfo->minFilter != VK_FILTER_NEAREST;
168   bool enable_mag_filter_addr_rounding =
169      pCreateInfo->magFilter != VK_FILTER_NEAREST;
170
171   struct GENX(SAMPLER_STATE) sampler_state = {
172      .SamplerDisable = false,
173      .TextureBorderColorMode = DX10OGL,
174
175#if GEN_GEN >= 8
176      .LODPreClampMode = CLAMP_MODE_OGL,
177#else
178      .LODPreClampEnable = CLAMP_ENABLE_OGL,
179#endif
180
181#if GEN_GEN == 8
182      .BaseMipLevel = 0.0,
183#endif
184      .MipModeFilter = vk_to_gen_mipmap_mode[pCreateInfo->mipmapMode],
185      .MagModeFilter = vk_to_gen_tex_filter(pCreateInfo->magFilter,
186                                            pCreateInfo->anisotropyEnable),
187      .MinModeFilter = vk_to_gen_tex_filter(pCreateInfo->minFilter,
188                                            pCreateInfo->anisotropyEnable),
189      .TextureLODBias = anv_clamp_f(pCreateInfo->mipLodBias, -16, 15.996),
190      .AnisotropicAlgorithm = EWAApproximation,
191      .MinLOD = anv_clamp_f(pCreateInfo->minLod, 0, 14),
192      .MaxLOD = anv_clamp_f(pCreateInfo->maxLod, 0, 14),
193      .ChromaKeyEnable = 0,
194      .ChromaKeyIndex = 0,
195      .ChromaKeyMode = 0,
196      .ShadowFunction = vk_to_gen_shadow_compare_op[pCreateInfo->compareOp],
197      .CubeSurfaceControlMode = OVERRIDE,
198
199      .BorderColorPointer = border_color_offset,
200
201#if GEN_GEN >= 8
202      .LODClampMagnificationMode = MIPNONE,
203#endif
204
205      .MaximumAnisotropy = vk_to_gen_max_anisotropy(pCreateInfo->maxAnisotropy),
206      .RAddressMinFilterRoundingEnable = enable_min_filter_addr_rounding,
207      .RAddressMagFilterRoundingEnable = enable_mag_filter_addr_rounding,
208      .VAddressMinFilterRoundingEnable = enable_min_filter_addr_rounding,
209      .VAddressMagFilterRoundingEnable = enable_mag_filter_addr_rounding,
210      .UAddressMinFilterRoundingEnable = enable_min_filter_addr_rounding,
211      .UAddressMagFilterRoundingEnable = enable_mag_filter_addr_rounding,
212      .TrilinearFilterQuality = 0,
213      .NonnormalizedCoordinateEnable = pCreateInfo->unnormalizedCoordinates,
214      .TCXAddressControlMode = vk_to_gen_tex_address[pCreateInfo->addressModeU],
215      .TCYAddressControlMode = vk_to_gen_tex_address[pCreateInfo->addressModeV],
216      .TCZAddressControlMode = vk_to_gen_tex_address[pCreateInfo->addressModeW],
217   };
218
219   GENX(SAMPLER_STATE_pack)(NULL, sampler->state, &sampler_state);
220
221   *pSampler = anv_sampler_to_handle(sampler);
222
223   return VK_SUCCESS;
224}
225