src/gallium/drivers/etnaviv/etnaviv_translate.h

   1 /*
   2  * Copyright (c) 2012-2013 Etnaviv Project
   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, sub license,
   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
  12  * next paragraph) shall be included in all copies or substantial portions
  13  * of the 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 NON-INFRINGEMENT. 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
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23 /* inlined translation functions between gallium and vivante */
  24 #ifndef H_TRANSLATE
  25 #define H_TRANSLATE
  26
  27 #include "pipe/p_defines.h"
  28 #include "pipe/p_format.h"
  29 #include "pipe/p_state.h"
  30
  31 #include "etnaviv_debug.h"
  32 #include "etnaviv_format.h"
  33 #include "etnaviv_util.h"
  34 #include "hw/cmdstream.xml.h"
  35 #include "hw/common_3d.xml.h"
  36 #include "hw/state.xml.h"
  37 #include "hw/state_3d.xml.h"
  38
  39 #include "util/format/u_format.h"
  40 #include "util/u_math.h"
  41
  42 /* Returned when there is no match of pipe value to etna value */
  43 #define ETNA_NO_MATCH (~0)
  44
  45 static inline uint32_t
  46 translate_cull_face(unsigned cull_face, unsigned front_ccw)
  47 {
  48    switch (cull_face) {
  49    case PIPE_FACE_NONE:
  50       return VIVS_PA_CONFIG_CULL_FACE_MODE_OFF;
  51    case PIPE_FACE_BACK:
  52       return front_ccw ? VIVS_PA_CONFIG_CULL_FACE_MODE_CW
  53                        : VIVS_PA_CONFIG_CULL_FACE_MODE_CCW;
  54    case PIPE_FACE_FRONT:
  55       return front_ccw ? VIVS_PA_CONFIG_CULL_FACE_MODE_CCW
  56                        : VIVS_PA_CONFIG_CULL_FACE_MODE_CW;
  57    default:
  58       DBG("Unhandled cull face mode %i", cull_face);
  59       return ETNA_NO_MATCH;
  60    }
  61 }
  62
  63 static inline uint32_t
  64 translate_polygon_mode(unsigned polygon_mode)
  65 {
  66    switch (polygon_mode) {
  67    case PIPE_POLYGON_MODE_FILL:
  68       return VIVS_PA_CONFIG_FILL_MODE_SOLID;
  69    case PIPE_POLYGON_MODE_LINE:
  70       return VIVS_PA_CONFIG_FILL_MODE_WIREFRAME;
  71    case PIPE_POLYGON_MODE_POINT:
  72       return VIVS_PA_CONFIG_FILL_MODE_POINT;
  73    default:
  74       DBG("Unhandled polygon mode %i", polygon_mode);
  75       return ETNA_NO_MATCH;
  76    }
  77 }
  78
  79 static inline uint32_t
  80 translate_stencil_mode(bool enable_0, bool enable_1)
  81 {
  82    if (enable_0) {
  83       return enable_1 ? VIVS_PE_STENCIL_CONFIG_MODE_TWO_SIDED
  84                       : VIVS_PE_STENCIL_CONFIG_MODE_ONE_SIDED;
  85    } else {
  86       return VIVS_PE_STENCIL_CONFIG_MODE_DISABLED;
  87    }
  88 }
  89
  90 static inline uint32_t
  91 translate_stencil_op(unsigned stencil_op)
  92 {
  93    switch (stencil_op) {
  94    case PIPE_STENCIL_OP_KEEP:
  95       return STENCIL_OP_KEEP;
  96    case PIPE_STENCIL_OP_ZERO:
  97       return STENCIL_OP_ZERO;
  98    case PIPE_STENCIL_OP_REPLACE:
  99       return STENCIL_OP_REPLACE;
 100    case PIPE_STENCIL_OP_INCR:
 101       return STENCIL_OP_INCR;
 102    case PIPE_STENCIL_OP_DECR:
 103       return STENCIL_OP_DECR;
 104    case PIPE_STENCIL_OP_INCR_WRAP:
 105       return STENCIL_OP_INCR_WRAP;
 106    case PIPE_STENCIL_OP_DECR_WRAP:
 107       return STENCIL_OP_DECR_WRAP;
 108    case PIPE_STENCIL_OP_INVERT:
 109       return STENCIL_OP_INVERT;
 110    default:
 111       DBG("Unhandled stencil op: %i", stencil_op);
 112       return ETNA_NO_MATCH;
 113    }
 114 }
 115
 116 static inline uint32_t
 117 translate_blend_factor(unsigned blend_factor)
 118 {
 119    switch (blend_factor) {
 120    case PIPE_BLENDFACTOR_ONE:
 121       return BLEND_FUNC_ONE;
 122    case PIPE_BLENDFACTOR_SRC_COLOR:
 123       return BLEND_FUNC_SRC_COLOR;
 124    case PIPE_BLENDFACTOR_SRC_ALPHA:
 125       return BLEND_FUNC_SRC_ALPHA;
 126    case PIPE_BLENDFACTOR_DST_ALPHA:
 127       return BLEND_FUNC_DST_ALPHA;
 128    case PIPE_BLENDFACTOR_DST_COLOR:
 129       return BLEND_FUNC_DST_COLOR;
 130    case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
 131       return BLEND_FUNC_SRC_ALPHA_SATURATE;
 132    case PIPE_BLENDFACTOR_CONST_COLOR:
 133       return BLEND_FUNC_CONSTANT_COLOR;
 134    case PIPE_BLENDFACTOR_CONST_ALPHA:
 135       return BLEND_FUNC_CONSTANT_ALPHA;
 136    case PIPE_BLENDFACTOR_ZERO:
 137       return BLEND_FUNC_ZERO;
 138    case PIPE_BLENDFACTOR_INV_SRC_COLOR:
 139       return BLEND_FUNC_ONE_MINUS_SRC_COLOR;
 140    case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
 141       return BLEND_FUNC_ONE_MINUS_SRC_ALPHA;
 142    case PIPE_BLENDFACTOR_INV_DST_ALPHA:
 143       return BLEND_FUNC_ONE_MINUS_DST_ALPHA;
 144    case PIPE_BLENDFACTOR_INV_DST_COLOR:
 145       return BLEND_FUNC_ONE_MINUS_DST_COLOR;
 146    case PIPE_BLENDFACTOR_INV_CONST_COLOR:
 147       return BLEND_FUNC_ONE_MINUS_CONSTANT_COLOR;
 148    case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
 149       return BLEND_FUNC_ONE_MINUS_CONSTANT_ALPHA;
 150    case PIPE_BLENDFACTOR_SRC1_COLOR:
 151    case PIPE_BLENDFACTOR_SRC1_ALPHA:
 152    case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
 153    case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
 154    default:
 155       DBG("Unhandled blend factor: %i", blend_factor);
 156       return ETNA_NO_MATCH;
 157    }
 158 }
 159
 160 static inline uint32_t
 161 translate_texture_wrapmode(unsigned wrap)
 162 {
 163    switch (wrap) {
 164    case PIPE_TEX_WRAP_REPEAT:
 165       return TEXTURE_WRAPMODE_REPEAT;
 166    case PIPE_TEX_WRAP_CLAMP:
 167       return TEXTURE_WRAPMODE_CLAMP_TO_EDGE;
 168    case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
 169       return TEXTURE_WRAPMODE_CLAMP_TO_EDGE;
 170    case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
 171       return TEXTURE_WRAPMODE_CLAMP_TO_EDGE; /* XXX */
 172    case PIPE_TEX_WRAP_MIRROR_REPEAT:
 173       return TEXTURE_WRAPMODE_MIRRORED_REPEAT;
 174    case PIPE_TEX_WRAP_MIRROR_CLAMP:
 175       return TEXTURE_WRAPMODE_MIRRORED_REPEAT; /* XXX */
 176    case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
 177       return TEXTURE_WRAPMODE_MIRRORED_REPEAT; /* XXX */
 178    case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
 179       return TEXTURE_WRAPMODE_MIRRORED_REPEAT; /* XXX */
 180    default:
 181       DBG("Unhandled texture wrapmode: %i", wrap);
 182       return ETNA_NO_MATCH;
 183    }
 184 }
 185
 186 static inline uint32_t
 187 translate_texture_mipfilter(unsigned filter)
 188 {
 189    switch (filter) {
 190    case PIPE_TEX_MIPFILTER_NEAREST:
 191       return TEXTURE_FILTER_NEAREST;
 192    case PIPE_TEX_MIPFILTER_LINEAR:
 193       return TEXTURE_FILTER_LINEAR;
 194    case PIPE_TEX_MIPFILTER_NONE:
 195       return TEXTURE_FILTER_NONE;
 196    default:
 197       DBG("Unhandled texture mipfilter: %i", filter);
 198       return ETNA_NO_MATCH;
 199    }
 200 }
 201
 202 static inline uint32_t
 203 translate_texture_filter(unsigned filter)
 204 {
 205    switch (filter) {
 206    case PIPE_TEX_FILTER_NEAREST:
 207       return TEXTURE_FILTER_NEAREST;
 208    case PIPE_TEX_FILTER_LINEAR:
 209       return TEXTURE_FILTER_LINEAR;
 210    default:
 211       DBG("Unhandled texture filter: %i", filter);
 212       return ETNA_NO_MATCH;
 213    }
 214 }
 215
 216 static inline int
 217 translate_rb_src_dst_swap(enum pipe_format src, enum pipe_format dst)
 218 {
 219    return translate_pe_format_rb_swap(src) ^ translate_pe_format_rb_swap(dst);
 220 }
 221
 222 static inline uint32_t
 223 translate_depth_format(enum pipe_format fmt)
 224 {
 225    /* Note: Pipe format convention is LSB to MSB, VIVS is MSB to LSB */
 226    switch (fmt) {
 227    case PIPE_FORMAT_Z16_UNORM:
 228       return VIVS_PE_DEPTH_CONFIG_DEPTH_FORMAT_D16;
 229    case PIPE_FORMAT_X8Z24_UNORM:
 230       return VIVS_PE_DEPTH_CONFIG_DEPTH_FORMAT_D24S8;
 231    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
 232       return VIVS_PE_DEPTH_CONFIG_DEPTH_FORMAT_D24S8;
 233    default:
 234       return ETNA_NO_MATCH;
 235    }
 236 }
 237
 238 /* render target format for MSAA */
 239 static inline uint32_t
 240 translate_ts_format(enum pipe_format fmt)
 241 {
 242    /* Note: Pipe format convention is LSB to MSB, VIVS is MSB to LSB */
 243    switch (fmt) {
 244    case PIPE_FORMAT_B4G4R4X4_UNORM:
 245    case PIPE_FORMAT_B4G4R4A4_UNORM:
 246       return COMPRESSION_FORMAT_A4R4G4B4;
 247    case PIPE_FORMAT_B5G5R5X1_UNORM:
 248       return COMPRESSION_FORMAT_A1R5G5B5;
 249    case PIPE_FORMAT_B5G5R5A1_UNORM:
 250       return COMPRESSION_FORMAT_A1R5G5B5;
 251    case PIPE_FORMAT_B5G6R5_UNORM:
 252       return COMPRESSION_FORMAT_R5G6B5;
 253    case PIPE_FORMAT_B8G8R8X8_UNORM:
 254    case PIPE_FORMAT_B8G8R8X8_SRGB:
 255    case PIPE_FORMAT_R8G8B8X8_UNORM:
 256       return COMPRESSION_FORMAT_X8R8G8B8;
 257    case PIPE_FORMAT_B8G8R8A8_UNORM:
 258    case PIPE_FORMAT_B8G8R8A8_SRGB:
 259    case PIPE_FORMAT_R8G8B8A8_UNORM:
 260       return COMPRESSION_FORMAT_A8R8G8B8;
 261    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
 262       return COMPRESSION_FORMAT_D24S8;
 263    case PIPE_FORMAT_X8Z24_UNORM:
 264       return COMPRESSION_FORMAT_D24X8;
 265    case PIPE_FORMAT_Z16_UNORM:
 266       return COMPRESSION_FORMAT_D16;
 267    /* MSAA with YUYV not supported */
 268    default:
 269       return ETNA_NO_MATCH;
 270    }
 271 }
 272
 273 /* Return normalization flag for vertex element format */
 274 static inline uint32_t
 275 translate_vertex_format_normalize(enum pipe_format fmt)
 276 {
 277    const struct util_format_description *desc = util_format_description(fmt);
 278    if (!desc)
 279       return VIVS_FE_VERTEX_ELEMENT_CONFIG_NORMALIZE_OFF;
 280
 281    /* assumes that normalization of channel 0 holds for all channels;
 282     * this holds for all vertex formats that we support */
 283    return desc->channel[0].normalized
 284              ? VIVS_FE_VERTEX_ELEMENT_CONFIG_NORMALIZE_SIGN_EXTEND
 285              : VIVS_FE_VERTEX_ELEMENT_CONFIG_NORMALIZE_OFF;
 286 }
 287
 288 static inline uint32_t
 289 translate_output_mode(enum pipe_format fmt, bool halti5)
 290 {
 291    const unsigned bits =
 292       util_format_get_component_bits(fmt, UTIL_FORMAT_COLORSPACE_RGB, 0);
 293
 294    if (bits == 32)
 295       return COLOR_OUTPUT_MODE_UIF32;
 296
 297    if (!util_format_is_pure_integer(fmt))
 298       return COLOR_OUTPUT_MODE_NORMAL;
 299
 300    /* generic integer output mode pre-halti5 (?) */
 301    if (bits == 10 || !halti5)
 302       return COLOR_OUTPUT_MODE_A2B10G10R10UI;
 303
 304    if (util_format_is_pure_sint(fmt))
 305       return bits == 8 ? COLOR_OUTPUT_MODE_I8 : COLOR_OUTPUT_MODE_I16;
 306
 307    return bits == 8 ? COLOR_OUTPUT_MODE_U8 : COLOR_OUTPUT_MODE_U16;
 308 }
 309
 310 static inline uint32_t
 311 translate_index_size(unsigned index_size)
 312 {
 313    switch (index_size) {
 314    case 1:
 315       return VIVS_FE_INDEX_STREAM_CONTROL_TYPE_UNSIGNED_CHAR;
 316    case 2:
 317       return VIVS_FE_INDEX_STREAM_CONTROL_TYPE_UNSIGNED_SHORT;
 318    case 4:
 319       return VIVS_FE_INDEX_STREAM_CONTROL_TYPE_UNSIGNED_INT;
 320    default:
 321       DBG("Unhandled index size %i", index_size);
 322       return ETNA_NO_MATCH;
 323    }
 324 }
 325
 326 static inline uint32_t
 327 translate_draw_mode(unsigned mode)
 328 {
 329    switch (mode) {
 330    case PIPE_PRIM_POINTS:
 331       return PRIMITIVE_TYPE_POINTS;
 332    case PIPE_PRIM_LINES:
 333       return PRIMITIVE_TYPE_LINES;
 334    case PIPE_PRIM_LINE_LOOP:
 335       return PRIMITIVE_TYPE_LINE_LOOP;
 336    case PIPE_PRIM_LINE_STRIP:
 337       return PRIMITIVE_TYPE_LINE_STRIP;
 338    case PIPE_PRIM_TRIANGLES:
 339       return PRIMITIVE_TYPE_TRIANGLES;
 340    case PIPE_PRIM_TRIANGLE_STRIP:
 341       return PRIMITIVE_TYPE_TRIANGLE_STRIP;
 342    case PIPE_PRIM_TRIANGLE_FAN:
 343       return PRIMITIVE_TYPE_TRIANGLE_FAN;
 344    case PIPE_PRIM_QUADS:
 345       return PRIMITIVE_TYPE_QUADS;
 346    default:
 347       DBG("Unhandled draw mode primitive %i", mode);
 348       return ETNA_NO_MATCH;
 349    }
 350 }
 351
 352 /* Get size multiple for size of texture/rendertarget with a certain layout
 353  * This is affected by many different parameters:
 354  *   - A horizontal multiple of 16 is used when possible as resolve can be used
 355  *       at the cost of only a little bit extra memory usage.
 356  *   - If the surface is to be used with the resolve engine, set rs_align true.
 357  *       If set, a horizontal multiple of 16 will be used for tiled and linear,
 358  *       otherwise one of 16.  However, such a surface will be incompatible
 359  *       with the samplers if the GPU does hot support the HALIGN feature.
 360  *   - If the surface is supertiled, horizontal and vertical multiple is always 64
 361  *   - If the surface is multi tiled or supertiled, make sure that the vertical size
 362  *     is a multiple of the number of pixel pipes as well.
 363  * */
 364 static inline void
 365 etna_layout_multiple(unsigned layout, unsigned pixel_pipes, bool rs_align,
 366                      unsigned *paddingX, unsigned *paddingY, unsigned *halign)
 367 {
 368    switch (layout) {
 369    case ETNA_LAYOUT_LINEAR:
 370       *paddingX = rs_align ? 16 : 4;
 371       *paddingY = 1;
 372       *halign = rs_align ? TEXTURE_HALIGN_SIXTEEN : TEXTURE_HALIGN_FOUR;
 373       break;
 374    case ETNA_LAYOUT_TILED:
 375       *paddingX = rs_align ? 16 : 4;
 376       *paddingY = 4;
 377       *halign = rs_align ? TEXTURE_HALIGN_SIXTEEN : TEXTURE_HALIGN_FOUR;
 378       break;
 379    case ETNA_LAYOUT_SUPER_TILED:
 380       *paddingX = 64;
 381       *paddingY = 64;
 382       *halign = TEXTURE_HALIGN_SUPER_TILED;
 383       break;
 384    case ETNA_LAYOUT_MULTI_TILED:
 385       *paddingX = 16;
 386       *paddingY = 4 * pixel_pipes;
 387       *halign = TEXTURE_HALIGN_SPLIT_TILED;
 388       break;
 389    case ETNA_LAYOUT_MULTI_SUPERTILED:
 390       *paddingX = 64;
 391       *paddingY = 64 * pixel_pipes;
 392       *halign = TEXTURE_HALIGN_SPLIT_SUPER_TILED;
 393       break;
 394    default:
 395       DBG("Unhandled layout %i", layout);
 396    }
 397 }
 398
 399 static inline uint32_t
 400 translate_clear_depth_stencil(enum pipe_format format, float depth,
 401                               unsigned stencil)
 402 {
 403    uint32_t clear_value = 0;
 404
 405    // XXX util_pack_color
 406    switch (format) {
 407    case PIPE_FORMAT_Z16_UNORM:
 408       clear_value = etna_cfloat_to_uintN(depth, 16);
 409       clear_value |= clear_value << 16;
 410       break;
 411    case PIPE_FORMAT_X8Z24_UNORM:
 412    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
 413       clear_value = (etna_cfloat_to_uintN(depth, 24) << 8) | (stencil & 0xFF);
 414       break;
 415    default:
 416       DBG("Unhandled pipe format for depth stencil clear: %i", format);
 417    }
 418    return clear_value;
 419 }
 420
 421 /* Convert MSAA number of samples to x and y scaling factor.
 422  * Return true if supported and false otherwise. */
 423 static inline bool
 424 translate_samples_to_xyscale(int num_samples, int *xscale_out, int *yscale_out)
 425 {
 426    int xscale, yscale;
 427
 428    switch (num_samples) {
 429    case 0:
 430    case 1:
 431       xscale = 1;
 432       yscale = 1;
 433       break;
 434    case 2:
 435       xscale = 2;
 436       yscale = 1;
 437       break;
 438    case 4:
 439       xscale = 2;
 440       yscale = 2;
 441       break;
 442    default:
 443       return false;
 444    }
 445
 446    if (xscale_out)
 447       *xscale_out = xscale;
 448    if (yscale_out)
 449       *yscale_out = yscale;
 450
 451    return true;
 452 }
 453
 454 static inline uint32_t
 455 translate_texture_target(unsigned target)
 456 {
 457    switch (target) {
 458    case PIPE_TEXTURE_1D:
 459       return TEXTURE_TYPE_1D;
 460    case PIPE_TEXTURE_2D:
 461    case PIPE_TEXTURE_RECT:
 462    case PIPE_TEXTURE_1D_ARRAY:
 463       return TEXTURE_TYPE_2D;
 464    case PIPE_TEXTURE_CUBE:
 465       return TEXTURE_TYPE_CUBE_MAP;
 466    case PIPE_TEXTURE_3D:
 467    case PIPE_TEXTURE_2D_ARRAY:
 468       return TEXTURE_TYPE_3D;
 469    default:
 470       DBG("Unhandled texture target: %i", target);
 471       return ETNA_NO_MATCH;
 472    }
 473 }
 474
 475 static inline uint32_t
 476 translate_texture_compare(enum pipe_compare_func compare_func)
 477 {
 478    switch (compare_func) {
 479    case PIPE_FUNC_NEVER:
 480       return TEXTURE_COMPARE_FUNC_NEVER;
 481    case PIPE_FUNC_LESS:
 482       return TEXTURE_COMPARE_FUNC_LESS;
 483    case PIPE_FUNC_EQUAL:
 484       return TEXTURE_COMPARE_FUNC_EQUAL;
 485    case PIPE_FUNC_LEQUAL:
 486       return TEXTURE_COMPARE_FUNC_LEQUAL;
 487    case PIPE_FUNC_GREATER:
 488       return TEXTURE_COMPARE_FUNC_GREATER;
 489    case PIPE_FUNC_NOTEQUAL:
 490       return TEXTURE_COMPARE_FUNC_NOTEQUAL;
 491    case PIPE_FUNC_GEQUAL:
 492       return TEXTURE_COMPARE_FUNC_GEQUAL;
 493    case PIPE_FUNC_ALWAYS:
 494       return TEXTURE_COMPARE_FUNC_ALWAYS;
 495    default:
 496       unreachable("Invalid compare func");
 497    }
 498 }
 499
 500 #endif