src/gallium/drivers/vc4/vc4_screen.c

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include <stdio.h>
  26
  27 #include "pipe/p_defines.h"
  28 #include "pipe/p_screen.h"
  29 #include "pipe/p_state.h"
  30
  31 #include "util/u_debug.h"
  32 #include "util/u_memory.h"
  33 #include "util/u_format.h"
  34
  35 #include "vc4_screen.h"
  36 #include "vc4_context.h"
  37 #include "vc4_resource.h"
  38
  39 static const struct debug_named_value debug_options[] = {
  40         {"cl",      VC4_DBG_CL,   "Dump command list during creation"},
  41 };
  42
  43 static const char *
  44 vc4_screen_get_name(struct pipe_screen *pscreen)
  45 {
  46         return "VC4";
  47 }
  48
  49 static const char *
  50 vc4_screen_get_vendor(struct pipe_screen *pscreen)
  51 {
  52         return "Broadcom";
  53 }
  54
  55 static void
  56 vc4_screen_destroy(struct pipe_screen *pscreen)
  57 {
  58         free(pscreen);
  59 }
  60
  61 static int
  62 vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  63 {
  64         switch (param) {
  65                 /* Supported features (boolean caps). */
  66         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
  67         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
  68         case PIPE_CAP_NPOT_TEXTURES:
  69         case PIPE_CAP_USER_CONSTANT_BUFFERS:
  70         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  71         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
  72         case PIPE_CAP_TWO_SIDED_STENCIL:
  73                 return 1;
  74
  75                 /* lying for GL 2.0 */
  76         case PIPE_CAP_OCCLUSION_QUERY:
  77         case PIPE_CAP_POINT_SPRITE:
  78                 return 1;
  79
  80         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
  81                 return 256;
  82
  83         case PIPE_CAP_GLSL_FEATURE_LEVEL:
  84                 return 120;
  85
  86         case PIPE_CAP_MAX_VIEWPORTS:
  87                 return 1;
  88
  89                 /* Unsupported features. */
  90         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
  91         case PIPE_CAP_ANISOTROPIC_FILTER:
  92         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
  93         case PIPE_CAP_CUBE_MAP_ARRAY:
  94         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
  95         case PIPE_CAP_TEXTURE_SWIZZLE:
  96         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
  97         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
  98         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
  99         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 100         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 101         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 102         case PIPE_CAP_TGSI_INSTANCEID:
 103         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 104         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 105         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 106         case PIPE_CAP_COMPUTE:
 107         case PIPE_CAP_START_INSTANCE:
 108         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 109         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 110         case PIPE_CAP_TGSI_TEXCOORD:
 111         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 112         case PIPE_CAP_CONDITIONAL_RENDER:
 113         case PIPE_CAP_PRIMITIVE_RESTART:
 114         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 115         case PIPE_CAP_TEXTURE_BARRIER:
 116         case PIPE_CAP_SM3:
 117         case PIPE_CAP_INDEP_BLEND_ENABLE:
 118         case PIPE_CAP_INDEP_BLEND_FUNC:
 119         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 120         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 121         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 122         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 123         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 124         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 125         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 126         case PIPE_CAP_USER_VERTEX_BUFFERS:
 127         case PIPE_CAP_USER_INDEX_BUFFERS:
 128         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 129         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 130         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 131         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 132         case PIPE_CAP_TEXTURE_GATHER_SM5:
 133         case PIPE_CAP_FAKE_SW_MSAA:
 134         case PIPE_CAP_TEXTURE_QUERY_LOD:
 135         case PIPE_CAP_SAMPLE_SHADING:
 136         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 137         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 138         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 139         case PIPE_CAP_MAX_TEXEL_OFFSET:
 140         case PIPE_CAP_MAX_VERTEX_STREAMS:
 141         case PIPE_CAP_DRAW_INDIRECT:
 142                 return 0;
 143
 144                 /* Stream output. */
 145         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 146         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 147         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 148         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 149                 return 0;
 150
 151                 /* Geometry shader output, unsupported. */
 152         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 153         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 154                 return 0;
 155
 156                 /* Texturing. */
 157         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 158         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 159                 return VC4_MAX_MIP_LEVELS;
 160         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 161                 return 1;
 162         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 163                 return 0;
 164
 165                 /* Render targets. */
 166         case PIPE_CAP_MAX_RENDER_TARGETS:
 167                 return 1;
 168
 169                 /* Queries. */
 170         case PIPE_CAP_QUERY_TIME_ELAPSED:
 171         case PIPE_CAP_QUERY_TIMESTAMP:
 172                 return 0;
 173
 174         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 175         case PIPE_CAP_MIN_TEXEL_OFFSET:
 176                 return 0;
 177
 178         case PIPE_CAP_ENDIANNESS:
 179                 return PIPE_ENDIAN_LITTLE;
 180
 181         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 182                 return 64;
 183
 184         default:
 185                 fprintf(stderr, "unknown param %d\n", param);
 186                 return 0;
 187         }
 188 }
 189
 190 static float
 191 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 192 {
 193         switch (param) {
 194         case PIPE_CAPF_MAX_LINE_WIDTH:
 195         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 196         case PIPE_CAPF_MAX_POINT_WIDTH:
 197         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 198                 return 8192.0f;
 199         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 200                 return 0.0f;
 201         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 202                 return 0.0f;
 203         case PIPE_CAPF_GUARD_BAND_LEFT:
 204         case PIPE_CAPF_GUARD_BAND_TOP:
 205         case PIPE_CAPF_GUARD_BAND_RIGHT:
 206         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 207                 return 0.0f;
 208         default:
 209                 fprintf(stderr, "unknown paramf %d\n", param);
 210                 return 0;
 211         }
 212 }
 213
 214 static int
 215 vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 216                            enum pipe_shader_cap param)
 217 {
 218         if (shader != PIPE_SHADER_VERTEX &&
 219             shader != PIPE_SHADER_FRAGMENT) {
 220                 return 0;
 221         }
 222
 223         /* this is probably not totally correct.. but it's a start: */
 224         switch (param) {
 225         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 226         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 227         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 228         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 229                 return 16384;
 230         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 231                 return 0;
 232         case PIPE_SHADER_CAP_MAX_INPUTS:
 233                 return 16;
 234         case PIPE_SHADER_CAP_MAX_TEMPS:
 235                 return 64; /* Max native temporaries. */
 236         case PIPE_SHADER_CAP_MAX_ADDRS:
 237                 return 1; /* Max native address registers */
 238         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 239                 return 64 * sizeof(float[4]);
 240         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 241                 return 1;
 242         case PIPE_SHADER_CAP_MAX_PREDS:
 243                 return 0; /* nothing uses this */
 244         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 245                 return 0;
 246         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 247         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 248         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 249         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 250                 return 0;
 251         case PIPE_SHADER_CAP_SUBROUTINES:
 252                 return 0;
 253         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 254                 return 0;
 255         case PIPE_SHADER_CAP_INTEGERS:
 256         case PIPE_SHADER_CAP_DOUBLES:
 257                 return 0;
 258         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 259         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 260                 return 16;
 261         case PIPE_SHADER_CAP_PREFERRED_IR:
 262                 return PIPE_SHADER_IR_TGSI;
 263         default:
 264                 fprintf(stderr, "unknown shader param %d\n", param);
 265                 return 0;
 266         }
 267         return 0;
 268 }
 269
 270 uint8_t
 271 vc4_get_texture_format(enum pipe_format format)
 272 {
 273         switch (format) {
 274         case PIPE_FORMAT_B8G8R8A8_UNORM:
 275                 return 0;
 276         case PIPE_FORMAT_B8G8R8X8_UNORM:
 277                 return 1;
 278         case PIPE_FORMAT_R8G8B8A8_UNORM:
 279                 return 0;
 280         case PIPE_FORMAT_R8G8B8X8_UNORM:
 281                 return 1;
 282         case PIPE_FORMAT_A8R8G8B8_UNORM:
 283                 return 0;
 284         case PIPE_FORMAT_X8R8G8B8_UNORM:
 285                 return 1;
 286         case PIPE_FORMAT_A8B8G8R8_UNORM:
 287                 return 0;
 288         case PIPE_FORMAT_X8B8G8R8_UNORM:
 289                 return 1;
 290 /*
 291         case PIPE_FORMAT_R4G4B4A4_UNORM:
 292                 return 2;
 293         case PIPE_FORMAT_R5G5B5A1_UNORM:
 294                 return 3;
 295         case PIPE_FORMAT_R5G6B5_UNORM:
 296                 return 4;
 297 */
 298         case PIPE_FORMAT_L8_UNORM:
 299                 return 5;
 300         case PIPE_FORMAT_A8_UNORM:
 301                 return 6;
 302         case PIPE_FORMAT_L8A8_UNORM:
 303                 return 7;
 304                 /* XXX: ETC1 and more*/
 305         default:
 306                 return ~0;
 307         }
 308 }
 309
 310 static boolean
 311 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 312                                enum pipe_format format,
 313                                enum pipe_texture_target target,
 314                                unsigned sample_count,
 315                                unsigned usage)
 316 {
 317         unsigned retval = 0;
 318
 319         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 320             (sample_count > 1) ||
 321             !util_format_is_supported(format, usage)) {
 322                 return FALSE;
 323         }
 324
 325         if (usage & PIPE_BIND_VERTEX_BUFFER)
 326                 retval |= PIPE_BIND_VERTEX_BUFFER; /* XXX */
 327
 328         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 329             (format == PIPE_FORMAT_B8G8R8A8_UNORM ||
 330              format == PIPE_FORMAT_B8G8R8X8_UNORM || /* XXX: really? */
 331              format == PIPE_FORMAT_R8G8B8A8_UNORM ||
 332              format == PIPE_FORMAT_R8G8B8X8_UNORM || /* XXX: really? */
 333              format == PIPE_FORMAT_A8B8G8R8_UNORM ||
 334              format == PIPE_FORMAT_X8B8G8R8_UNORM || /* XXX: really? */
 335              format == PIPE_FORMAT_A8R8G8B8_UNORM ||
 336              format == PIPE_FORMAT_X8R8G8B8_UNORM || /* XXX: really? */
 337              format == PIPE_FORMAT_R16G16B16A16_FLOAT)) {
 338                 retval |= PIPE_BIND_RENDER_TARGET;
 339         }
 340
 341         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 342             (vc4_get_texture_format(format) != ~0)) {
 343                 retval |= usage & (PIPE_BIND_SAMPLER_VIEW |
 344                                    PIPE_BIND_VERTEX_BUFFER);
 345         }
 346
 347         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 348             (format == PIPE_FORMAT_Z24_UNORM_S8_UINT ||
 349              format == PIPE_FORMAT_Z24X8_UNORM)) {
 350                 retval |= PIPE_BIND_DEPTH_STENCIL;
 351         }
 352
 353         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 354             (format == PIPE_FORMAT_I8_UINT ||
 355              format == PIPE_FORMAT_I16_UINT)) {
 356                 retval |= PIPE_BIND_INDEX_BUFFER;
 357         }
 358
 359         if (usage & PIPE_BIND_TRANSFER_READ)
 360                 retval |= PIPE_BIND_TRANSFER_READ;
 361         if (usage & PIPE_BIND_TRANSFER_WRITE)
 362                 retval |= PIPE_BIND_TRANSFER_WRITE;
 363
 364         return retval == usage;
 365 }
 366
 367 struct pipe_screen *
 368 vc4_screen_create(int fd)
 369 {
 370         struct vc4_screen *screen = CALLOC_STRUCT(vc4_screen);
 371         struct pipe_screen *pscreen;
 372
 373         pscreen = &screen->base;
 374
 375         pscreen->destroy = vc4_screen_destroy;
 376         pscreen->get_param = vc4_screen_get_param;
 377         pscreen->get_paramf = vc4_screen_get_paramf;
 378         pscreen->get_shader_param = vc4_screen_get_shader_param;
 379         pscreen->context_create = vc4_context_create;
 380         pscreen->is_format_supported = vc4_screen_is_format_supported;
 381
 382         screen->fd = fd;
 383
 384 #if USE_VC4_SIMULATOR
 385         vc4_simulator_init(screen);
 386 #endif
 387
 388         vc4_resource_screen_init(pscreen);
 389
 390         pscreen->get_name = vc4_screen_get_name;
 391         pscreen->get_vendor = vc4_screen_get_vendor;
 392
 393         return pscreen;
 394 }
 395
 396 boolean
 397 vc4_screen_bo_get_handle(struct pipe_screen *pscreen,
 398                          struct vc4_bo *bo,
 399                          unsigned stride,
 400                          struct winsys_handle *whandle)
 401 {
 402         whandle->stride = stride;
 403
 404         switch (whandle->type) {
 405         case DRM_API_HANDLE_TYPE_SHARED:
 406                 return vc4_bo_flink(bo, &whandle->handle);
 407         case DRM_API_HANDLE_TYPE_KMS:
 408                 whandle->handle = bo->handle;
 409                 return TRUE;
 410         }
 411
 412         return FALSE;
 413 }
 414
 415 struct vc4_bo *
 416 vc4_screen_bo_from_handle(struct pipe_screen *pscreen,
 417                           struct winsys_handle *whandle,
 418                           unsigned *out_stride)
 419 {
 420         struct vc4_screen *screen = vc4_screen(pscreen);
 421         struct vc4_bo *bo;
 422
 423         if (whandle->type != DRM_API_HANDLE_TYPE_SHARED) {
 424                 fprintf(stderr,
 425                         "Attempt to import unsupported handle type %d\n",
 426                         whandle->type);
 427                 return NULL;
 428         }
 429
 430         bo = vc4_bo_open_name(screen, whandle->handle, whandle->stride);
 431         if (!bo) {
 432                 fprintf(stderr, "Open name %d failed\n", whandle->handle);
 433                 return NULL;
 434         }
 435
 436         *out_stride = whandle->stride;
 437
 438         return bo;
 439 }