1 /* 2 * Copyright 2012 Red Hat Inc. 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 shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 * 24 */ 25 26 #include "util/u_inlines.h" 27 #include "util/u_format.h" 28 29 #include "nouveau/nv_object.xml.h" 30 #include "nv30-40_3d.xml.h" 31 #include "nv30_context.h" 32 #include "nv30_format.h" 33 34 #define NV30_3D_TEX_WRAP_S_MIRROR_REPEAT NV30_3D_TEX_WRAP_S_MIRRORED_REPEAT 35 #define NV30_WRAP(n) \ 36 case PIPE_TEX_WRAP_##n: ret = NV30_3D_TEX_WRAP_S_##n; break 37 #define NV40_WRAP(n) \ 38 case PIPE_TEX_WRAP_##n: ret = NV40_3D_TEX_WRAP_S_##n; break 39 40 static INLINE unsigned 41 wrap_mode(unsigned pipe) 42 { 43 unsigned ret = NV30_3D_TEX_WRAP_S_REPEAT; 44 45 switch (pipe) { 46 NV30_WRAP(REPEAT); 47 NV30_WRAP(MIRROR_REPEAT); 48 NV30_WRAP(CLAMP_TO_EDGE); 49 NV30_WRAP(CLAMP_TO_BORDER); 50 NV30_WRAP(CLAMP); 51 NV40_WRAP(MIRROR_CLAMP_TO_EDGE); 52 NV40_WRAP(MIRROR_CLAMP_TO_BORDER); 53 NV40_WRAP(MIRROR_CLAMP); 54 default: 55 break; 56 } 57 58 return ret >> NV30_3D_TEX_WRAP_S__SHIFT; 59 } 60 61 static INLINE unsigned 62 filter_mode(const struct pipe_sampler_state *cso) 63 { 64 unsigned filter; 65 66 switch (cso->mag_img_filter) { 67 case PIPE_TEX_FILTER_LINEAR: 68 filter = NV30_3D_TEX_FILTER_MAG_LINEAR; 69 break; 70 default: 71 filter = NV30_3D_TEX_FILTER_MAG_NEAREST; 72 break; 73 } 74 75 switch (cso->min_img_filter) { 76 case PIPE_TEX_FILTER_LINEAR: 77 switch (cso->min_mip_filter) { 78 case PIPE_TEX_MIPFILTER_NEAREST: 79 filter |= NV30_3D_TEX_FILTER_MIN_LINEAR_MIPMAP_NEAREST; 80 break; 81 case PIPE_TEX_MIPFILTER_LINEAR: 82 filter |= NV30_3D_TEX_FILTER_MIN_LINEAR_MIPMAP_LINEAR; 83 break; 84 default: 85 filter |= NV30_3D_TEX_FILTER_MIN_LINEAR; 86 break; 87 } 88 break; 89 default: 90 switch (cso->min_mip_filter) { 91 case PIPE_TEX_MIPFILTER_NEAREST: 92 filter |= NV30_3D_TEX_FILTER_MIN_NEAREST_MIPMAP_NEAREST; 93 break; 94 case PIPE_TEX_MIPFILTER_LINEAR: 95 filter |= NV30_3D_TEX_FILTER_MIN_NEAREST_MIPMAP_LINEAR; 96 break; 97 default: 98 filter |= NV30_3D_TEX_FILTER_MIN_NEAREST; 99 break; 100 } 101 break; 102 } 103 104 return filter; 105 } 106 107 static INLINE unsigned 108 compare_mode(const struct pipe_sampler_state *cso) 109 { 110 if (cso->compare_mode != PIPE_TEX_COMPARE_R_TO_TEXTURE) 111 return 0; 112 113 switch (cso->compare_func) { 114 case PIPE_FUNC_NEVER : return NV30_3D_TEX_WRAP_RCOMP_NEVER; 115 case PIPE_FUNC_GREATER : return NV30_3D_TEX_WRAP_RCOMP_GREATER; 116 case PIPE_FUNC_EQUAL : return NV30_3D_TEX_WRAP_RCOMP_EQUAL; 117 case PIPE_FUNC_GEQUAL : return NV30_3D_TEX_WRAP_RCOMP_GEQUAL; 118 case PIPE_FUNC_LESS : return NV30_3D_TEX_WRAP_RCOMP_LESS; 119 case PIPE_FUNC_NOTEQUAL: return NV30_3D_TEX_WRAP_RCOMP_NOTEQUAL; 120 case PIPE_FUNC_LEQUAL : return NV30_3D_TEX_WRAP_RCOMP_LEQUAL; 121 case PIPE_FUNC_ALWAYS : return NV30_3D_TEX_WRAP_RCOMP_ALWAYS; 122 default: 123 return 0; 124 } 125 } 126 127 static void * 128 nv30_sampler_state_create(struct pipe_context *pipe, 129 const struct pipe_sampler_state *cso) 130 { 131 struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d; 132 struct nv30_sampler_state *so; 133 const float max_lod = 15.0 + (255.0 / 256.0); 134 135 so = MALLOC_STRUCT(nv30_sampler_state); 136 if (!so) 137 return NULL; 138 139 so->pipe = *cso; 140 so->fmt = 0; 141 so->wrap = (wrap_mode(cso->wrap_s) << NV30_3D_TEX_WRAP_S__SHIFT) | 142 (wrap_mode(cso->wrap_t) << NV30_3D_TEX_WRAP_T__SHIFT) | 143 (wrap_mode(cso->wrap_r) << NV30_3D_TEX_WRAP_R__SHIFT); 144 so->en = 0; 145 so->wrap |= compare_mode(cso); 146 so->filt = filter_mode(cso) | 0x00002000; 147 so->bcol = (float_to_ubyte(cso->border_color.f[3]) << 24) | 148 (float_to_ubyte(cso->border_color.f[0]) << 16) | 149 (float_to_ubyte(cso->border_color.f[1]) << 8) | 150 (float_to_ubyte(cso->border_color.f[2]) << 0); 151 152 if (eng3d->oclass >= NV40_3D_CLASS) { 153 unsigned aniso = cso->max_anisotropy; 154 155 if (!cso->normalized_coords) 156 so->fmt |= NV40_3D_TEX_FORMAT_RECT; 157 158 if (aniso > 1) { 159 if (aniso >= 16) so->en |= NV40_3D_TEX_ENABLE_ANISO_16X; 160 else if (aniso >= 12) so->en |= NV40_3D_TEX_ENABLE_ANISO_12X; 161 else if (aniso >= 10) so->en |= NV40_3D_TEX_ENABLE_ANISO_10X; 162 else if (aniso >= 8) so->en |= NV40_3D_TEX_ENABLE_ANISO_8X; 163 else if (aniso >= 6) so->en |= NV40_3D_TEX_ENABLE_ANISO_6X; 164 else if (aniso >= 4) so->en |= NV40_3D_TEX_ENABLE_ANISO_4X; 165 else so->en |= NV40_3D_TEX_ENABLE_ANISO_2X; 166 167 so->wrap |= nv30_context(pipe)->config.aniso; 168 } 169 } else { 170 so->en |= NV30_3D_TEX_ENABLE_ENABLE; 171 172 if (cso->max_anisotropy >= 8) so->en |= NV30_3D_TEX_ENABLE_ANISO_8X; 173 else if (cso->max_anisotropy >= 4) so->en |= NV30_3D_TEX_ENABLE_ANISO_4X; 174 else if (cso->max_anisotropy >= 2) so->en |= NV30_3D_TEX_ENABLE_ANISO_2X; 175 } 176 177 so->filt |= (int)(cso->lod_bias * 256.0) & 0x1fff; 178 so->max_lod = (int)(CLAMP(cso->max_lod, 0.0, max_lod) * 256.0); 179 so->min_lod = (int)(CLAMP(cso->min_lod, 0.0, max_lod) * 256.0); 180 return so; 181 } 182 183 static void 184 nv30_sampler_state_delete(struct pipe_context *pipe, void *hwcso) 185 { 186 FREE(hwcso); 187 } 188 189 static INLINE uint32_t 190 swizzle(const struct nv30_texfmt *fmt, unsigned cmp, unsigned swz) 191 { 192 uint32_t data = fmt->swz[swz].src << 8; 193 if (swz <= PIPE_SWIZZLE_ALPHA) 194 data |= fmt->swz[swz].cmp; 195 else 196 data |= fmt->swz[cmp].cmp; 197 return data; 198 } 199 200 static struct pipe_sampler_view * 201 nv30_sampler_view_create(struct pipe_context *pipe, struct pipe_resource *pt, 202 const struct pipe_sampler_view *tmpl) 203 { 204 const struct nv30_texfmt *fmt = nv30_texfmt(pipe->screen, tmpl->format); 205 struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d; 206 struct nv30_miptree *mt = nv30_miptree(pt); 207 struct nv30_sampler_view *so; 208 209 so = MALLOC_STRUCT(nv30_sampler_view); 210 if (!so) 211 return NULL; 212 so->pipe = *tmpl; 213 so->pipe.reference.count = 1; 214 so->pipe.texture = NULL; 215 so->pipe.context = pipe; 216 pipe_resource_reference(&so->pipe.texture, pt); 217 218 so->fmt = NV30_3D_TEX_FORMAT_NO_BORDER; 219 switch (pt->target) { 220 case PIPE_TEXTURE_1D: 221 so->fmt |= NV30_3D_TEX_FORMAT_DIMS_1D; 222 break; 223 case PIPE_TEXTURE_CUBE: 224 so->fmt |= NV30_3D_TEX_FORMAT_CUBIC; 225 case PIPE_TEXTURE_2D: 226 case PIPE_TEXTURE_RECT: 227 so->fmt |= NV30_3D_TEX_FORMAT_DIMS_2D; 228 break; 229 case PIPE_TEXTURE_3D: 230 so->fmt |= NV30_3D_TEX_FORMAT_DIMS_3D; 231 break; 232 default: 233 assert(0); 234 so->fmt |= NV30_3D_TEX_FORMAT_DIMS_1D; 235 break; 236 } 237 238 so->filt = fmt->filter; 239 so->wrap = fmt->wrap; 240 so->swz = fmt->swizzle; 241 so->swz |= swizzle(fmt, 3, tmpl->swizzle_a); 242 so->swz |= swizzle(fmt, 0, tmpl->swizzle_r) << 2; 243 so->swz |= swizzle(fmt, 1, tmpl->swizzle_g) << 4; 244 so->swz |= swizzle(fmt, 2, tmpl->swizzle_b) << 6; 245 246 /* apparently, we need to ignore the t coordinate for 1D textures to 247 * fix piglit tex1d-2dborder 248 */ 249 so->wrap_mask = ~0; 250 if (pt->target == PIPE_TEXTURE_1D) { 251 so->wrap_mask &= ~NV30_3D_TEX_WRAP_T__MASK; 252 so->wrap |= NV30_3D_TEX_WRAP_T_REPEAT; 253 } 254 255 /* yet more hardware suckage, can't filter 32-bit float formats */ 256 switch (tmpl->format) { 257 case PIPE_FORMAT_R32_FLOAT: 258 case PIPE_FORMAT_R32G32B32A32_FLOAT: 259 so->filt_mask = ~(NV30_3D_TEX_FILTER_MIN__MASK | 260 NV30_3D_TEX_FILTER_MAG__MASK); 261 so->filt |= NV30_3D_TEX_FILTER_MIN_NEAREST | 262 NV30_3D_TEX_FILTER_MAG_NEAREST; 263 break; 264 default: 265 so->filt_mask = ~0; 266 break; 267 } 268 269 so->npot_size0 = (pt->width0 << 16) | pt->height0; 270 if (eng3d->oclass >= NV40_3D_CLASS) { 271 so->npot_size1 = (pt->depth0 << 20) | mt->uniform_pitch; 272 if (!mt->swizzled) 273 so->fmt |= NV40_3D_TEX_FORMAT_LINEAR; 274 so->fmt |= 0x00008000; 275 so->fmt |= (pt->last_level + 1) << NV40_3D_TEX_FORMAT_MIPMAP_COUNT__SHIFT; 276 } else { 277 so->swz |= mt->uniform_pitch << NV30_3D_TEX_SWIZZLE_RECT_PITCH__SHIFT; 278 if (pt->last_level) 279 so->fmt |= NV30_3D_TEX_FORMAT_MIPMAP; 280 so->fmt |= util_logbase2(pt->width0) << 20; 281 so->fmt |= util_logbase2(pt->height0) << 24; 282 so->fmt |= util_logbase2(pt->depth0) << 28; 283 so->fmt |= 0x00010000; 284 } 285 286 so->base_lod = so->pipe.u.tex.first_level << 8; 287 so->high_lod = MIN2(pt->last_level, so->pipe.u.tex.last_level) << 8; 288 return &so->pipe; 289 } 290 291 static void 292 nv30_sampler_view_destroy(struct pipe_context *pipe, 293 struct pipe_sampler_view *view) 294 { 295 pipe_resource_reference(&view->texture, NULL); 296 FREE(view); 297 } 298 299 void 300 nv30_texture_init(struct pipe_context *pipe) 301 { 302 pipe->create_sampler_state = nv30_sampler_state_create; 303 pipe->delete_sampler_state = nv30_sampler_state_delete; 304 pipe->create_sampler_view = nv30_sampler_view_create; 305 pipe->sampler_view_destroy = nv30_sampler_view_destroy; 306 } 307