1/* 2 * Copyright (c) 2012-2015 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 * Authors: 24 * Wladimir J. van der Laan <laanwj@gmail.com> 25 * Christian Gmeiner <christian.gmeiner@gmail.com> 26 */ 27 28#include "etnaviv_state.h" 29 30#include "hw/common.xml.h" 31 32#include "etnaviv_clear_blit.h" 33#include "etnaviv_context.h" 34#include "etnaviv_format.h" 35#include "etnaviv_shader.h" 36#include "etnaviv_surface.h" 37#include "etnaviv_translate.h" 38#include "etnaviv_util.h" 39#include "util/u_helpers.h" 40#include "util/u_inlines.h" 41#include "util/u_math.h" 42#include "util/u_memory.h" 43 44static void 45etna_set_blend_color(struct pipe_context *pctx, const struct pipe_blend_color *bc) 46{ 47 struct etna_context *ctx = etna_context(pctx); 48 struct compiled_blend_color *cs = &ctx->blend_color; 49 50 cs->PE_ALPHA_BLEND_COLOR = 51 VIVS_PE_ALPHA_BLEND_COLOR_R(etna_cfloat_to_uint8(bc->color[0])) | 52 VIVS_PE_ALPHA_BLEND_COLOR_G(etna_cfloat_to_uint8(bc->color[1])) | 53 VIVS_PE_ALPHA_BLEND_COLOR_B(etna_cfloat_to_uint8(bc->color[2])) | 54 VIVS_PE_ALPHA_BLEND_COLOR_A(etna_cfloat_to_uint8(bc->color[3])); 55 ctx->dirty |= ETNA_DIRTY_BLEND_COLOR; 56} 57 58static void 59etna_set_stencil_ref(struct pipe_context *pctx, const struct pipe_stencil_ref *sr) 60{ 61 struct etna_context *ctx = etna_context(pctx); 62 struct compiled_stencil_ref *cs = &ctx->stencil_ref; 63 64 ctx->stencil_ref_s = *sr; 65 66 cs->PE_STENCIL_CONFIG = VIVS_PE_STENCIL_CONFIG_REF_FRONT(sr->ref_value[0]); 67 /* rest of bits weaved in from depth_stencil_alpha */ 68 cs->PE_STENCIL_CONFIG_EXT = 69 VIVS_PE_STENCIL_CONFIG_EXT_REF_BACK(sr->ref_value[0]); 70 ctx->dirty |= ETNA_DIRTY_STENCIL_REF; 71} 72 73static void 74etna_set_clip_state(struct pipe_context *pctx, const struct pipe_clip_state *pcs) 75{ 76 /* NOOP */ 77} 78 79static void 80etna_set_sample_mask(struct pipe_context *pctx, unsigned sample_mask) 81{ 82 struct etna_context *ctx = etna_context(pctx); 83 84 ctx->sample_mask = sample_mask; 85 ctx->dirty |= ETNA_DIRTY_SAMPLE_MASK; 86} 87 88static void 89etna_set_constant_buffer(struct pipe_context *pctx, uint shader, uint index, 90 const struct pipe_constant_buffer *cb) 91{ 92 struct etna_context *ctx = etna_context(pctx); 93 94 if (unlikely(index > 0)) { 95 DBG("Unhandled buffer index %i", index); 96 return; 97 } 98 99 100 util_copy_constant_buffer(&ctx->constant_buffer[shader], cb); 101 102 /* Note that the state tracker can unbind constant buffers by 103 * passing NULL here. */ 104 if (unlikely(!cb)) 105 return; 106 107 /* there is no support for ARB_uniform_buffer_object */ 108 assert(cb->buffer == NULL && cb->user_buffer != NULL); 109 110 ctx->dirty |= ETNA_DIRTY_CONSTBUF; 111} 112 113static void 114etna_update_render_resource(struct pipe_context *pctx, struct pipe_resource *pres) 115{ 116 struct etna_resource *res = etna_resource(pres); 117 118 if (res->texture && etna_resource_older(res, etna_resource(res->texture))) { 119 /* The render buffer is older than the texture buffer. Copy it over. */ 120 etna_copy_resource(pctx, pres, res->texture, 0, pres->last_level); 121 res->seqno = etna_resource(res->texture)->seqno; 122 } 123} 124 125static void 126etna_set_framebuffer_state(struct pipe_context *pctx, 127 const struct pipe_framebuffer_state *sv) 128{ 129 struct etna_context *ctx = etna_context(pctx); 130 struct compiled_framebuffer_state *cs = &ctx->framebuffer; 131 int nr_samples_color = -1; 132 int nr_samples_depth = -1; 133 134 /* Set up TS as well. Warning: this state is used by both the RS and PE */ 135 uint32_t ts_mem_config = 0; 136 137 if (sv->nr_cbufs > 0) { /* at least one color buffer? */ 138 struct etna_surface *cbuf = etna_surface(sv->cbufs[0]); 139 struct etna_resource *res = etna_resource(cbuf->base.texture); 140 bool color_supertiled = (res->layout & ETNA_LAYOUT_BIT_SUPER) != 0; 141 142 assert(res->layout & ETNA_LAYOUT_BIT_TILE); /* Cannot render to linear surfaces */ 143 etna_update_render_resource(pctx, cbuf->base.texture); 144 145 pipe_surface_reference(&cs->cbuf, &cbuf->base); 146 cs->PE_COLOR_FORMAT = 147 VIVS_PE_COLOR_FORMAT_FORMAT(translate_rs_format(cbuf->base.format)) | 148 VIVS_PE_COLOR_FORMAT_COMPONENTS__MASK | 149 VIVS_PE_COLOR_FORMAT_OVERWRITE | 150 COND(color_supertiled, VIVS_PE_COLOR_FORMAT_SUPER_TILED); 151 /* VIVS_PE_COLOR_FORMAT_COMPONENTS() and 152 * VIVS_PE_COLOR_FORMAT_OVERWRITE comes from blend_state 153 * but only if we set the bits above. */ 154 /* merged with depth_stencil_alpha */ 155 if ((cbuf->surf.offset & 63) || 156 (((cbuf->surf.stride * 4) & 63) && cbuf->surf.height > 4)) { 157 /* XXX Must make temporary surface here. 158 * Need the same mechanism on gc2000 when we want to do mipmap 159 * generation by 160 * rendering to levels > 1 due to multitiled / tiled conversion. */ 161 BUG("Alignment error, trying to render to offset %08x with tile " 162 "stride %i", 163 cbuf->surf.offset, cbuf->surf.stride * 4); 164 } 165 166 if (ctx->specs.pixel_pipes == 1) { 167 cs->PE_COLOR_ADDR = cbuf->reloc[0]; 168 cs->PE_COLOR_ADDR.flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE; 169 } else { 170 /* Rendered textures must always be multi-tiled */ 171 assert(res->layout & ETNA_LAYOUT_BIT_MULTI); 172 for (int i = 0; i < ctx->specs.pixel_pipes; i++) { 173 cs->PE_PIPE_COLOR_ADDR[i] = cbuf->reloc[i]; 174 cs->PE_PIPE_COLOR_ADDR[i].flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE; 175 } 176 } 177 cs->PE_COLOR_STRIDE = cbuf->surf.stride; 178 179 if (cbuf->surf.ts_size) { 180 ts_mem_config |= VIVS_TS_MEM_CONFIG_COLOR_FAST_CLEAR; 181 cs->TS_COLOR_CLEAR_VALUE = cbuf->level->clear_value; 182 183 cs->TS_COLOR_STATUS_BASE = cbuf->ts_reloc; 184 cs->TS_COLOR_STATUS_BASE.flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE; 185 186 cs->TS_COLOR_SURFACE_BASE = cbuf->reloc[0]; 187 cs->TS_COLOR_SURFACE_BASE.flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE; 188 } 189 190 /* MSAA */ 191 if (cbuf->base.texture->nr_samples > 1) 192 ts_mem_config |= 193 VIVS_TS_MEM_CONFIG_MSAA | translate_msaa_format(cbuf->base.format); 194 195 nr_samples_color = cbuf->base.texture->nr_samples; 196 } else { 197 pipe_surface_reference(&cs->cbuf, NULL); 198 /* Clearing VIVS_PE_COLOR_FORMAT_COMPONENTS__MASK and 199 * VIVS_PE_COLOR_FORMAT_OVERWRITE prevents us from overwriting the 200 * color target */ 201 cs->PE_COLOR_FORMAT = 0; 202 cs->PE_COLOR_STRIDE = 0; 203 cs->TS_COLOR_STATUS_BASE.bo = NULL; 204 cs->TS_COLOR_SURFACE_BASE.bo = NULL; 205 206 for (int i = 0; i < ETNA_MAX_PIXELPIPES; i++) 207 cs->PE_PIPE_COLOR_ADDR[i].bo = NULL; 208 } 209 210 if (sv->zsbuf != NULL) { 211 struct etna_surface *zsbuf = etna_surface(sv->zsbuf); 212 struct etna_resource *res = etna_resource(zsbuf->base.texture); 213 214 etna_update_render_resource(pctx, zsbuf->base.texture); 215 216 pipe_surface_reference(&cs->zsbuf, &zsbuf->base); 217 assert(res->layout &ETNA_LAYOUT_BIT_TILE); /* Cannot render to linear surfaces */ 218 219 uint32_t depth_format = translate_depth_format(zsbuf->base.format); 220 unsigned depth_bits = 221 depth_format == VIVS_PE_DEPTH_CONFIG_DEPTH_FORMAT_D16 ? 16 : 24; 222 bool depth_supertiled = (res->layout & ETNA_LAYOUT_BIT_SUPER) != 0; 223 224 cs->PE_DEPTH_CONFIG = 225 depth_format | 226 COND(depth_supertiled, VIVS_PE_DEPTH_CONFIG_SUPER_TILED) | 227 VIVS_PE_DEPTH_CONFIG_DEPTH_MODE_Z; 228 /* VIVS_PE_DEPTH_CONFIG_ONLY_DEPTH */ 229 /* merged with depth_stencil_alpha */ 230 231 if (ctx->specs.pixel_pipes == 1) { 232 cs->PE_DEPTH_ADDR = zsbuf->reloc[0]; 233 cs->PE_DEPTH_ADDR.flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE; 234 } else { 235 for (int i = 0; i < ctx->specs.pixel_pipes; i++) { 236 cs->PE_PIPE_DEPTH_ADDR[i] = zsbuf->reloc[i]; 237 cs->PE_PIPE_DEPTH_ADDR[i].flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE; 238 } 239 } 240 241 cs->PE_DEPTH_STRIDE = zsbuf->surf.stride; 242 cs->PE_HDEPTH_CONTROL = VIVS_PE_HDEPTH_CONTROL_FORMAT_DISABLED; 243 cs->PE_DEPTH_NORMALIZE = fui(exp2f(depth_bits) - 1.0f); 244 245 if (zsbuf->surf.ts_size) { 246 ts_mem_config |= VIVS_TS_MEM_CONFIG_DEPTH_FAST_CLEAR; 247 cs->TS_DEPTH_CLEAR_VALUE = zsbuf->level->clear_value; 248 249 cs->TS_DEPTH_STATUS_BASE = zsbuf->ts_reloc; 250 cs->TS_DEPTH_STATUS_BASE.flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE; 251 252 cs->TS_DEPTH_SURFACE_BASE = zsbuf->reloc[0]; 253 cs->TS_DEPTH_SURFACE_BASE.flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE; 254 } 255 256 ts_mem_config |= COND(depth_bits == 16, VIVS_TS_MEM_CONFIG_DEPTH_16BPP); 257 258 /* MSAA */ 259 if (zsbuf->base.texture->nr_samples > 1) 260 /* XXX VIVS_TS_MEM_CONFIG_DEPTH_COMPRESSION; 261 * Disable without MSAA for now, as it causes corruption in glquake. */ 262 ts_mem_config |= VIVS_TS_MEM_CONFIG_DEPTH_COMPRESSION; 263 264 nr_samples_depth = zsbuf->base.texture->nr_samples; 265 } else { 266 pipe_surface_reference(&cs->zsbuf, NULL); 267 cs->PE_DEPTH_CONFIG = VIVS_PE_DEPTH_CONFIG_DEPTH_MODE_NONE; 268 cs->PE_DEPTH_ADDR.bo = NULL; 269 cs->PE_DEPTH_STRIDE = 0; 270 cs->TS_DEPTH_STATUS_BASE.bo = NULL; 271 cs->TS_DEPTH_SURFACE_BASE.bo = NULL; 272 273 for (int i = 0; i < ETNA_MAX_PIXELPIPES; i++) 274 cs->PE_PIPE_DEPTH_ADDR[i].bo = NULL; 275 } 276 277 /* MSAA setup */ 278 if (nr_samples_depth != -1 && nr_samples_color != -1 && 279 nr_samples_depth != nr_samples_color) { 280 BUG("Number of samples in color and depth texture must match (%i and %i respectively)", 281 nr_samples_color, nr_samples_depth); 282 } 283 284 switch (MAX2(nr_samples_depth, nr_samples_color)) { 285 case 0: 286 case 1: /* Are 0 and 1 samples allowed? */ 287 cs->GL_MULTI_SAMPLE_CONFIG = 288 VIVS_GL_MULTI_SAMPLE_CONFIG_MSAA_SAMPLES_NONE; 289 cs->msaa_mode = false; 290 break; 291 case 2: 292 cs->GL_MULTI_SAMPLE_CONFIG = VIVS_GL_MULTI_SAMPLE_CONFIG_MSAA_SAMPLES_2X; 293 cs->msaa_mode = true; /* Add input to PS */ 294 cs->RA_MULTISAMPLE_UNK00E04 = 0x0; 295 cs->RA_MULTISAMPLE_UNK00E10[0] = 0x0000aa22; 296 cs->RA_CENTROID_TABLE[0] = 0x66aa2288; 297 cs->RA_CENTROID_TABLE[1] = 0x88558800; 298 cs->RA_CENTROID_TABLE[2] = 0x88881100; 299 cs->RA_CENTROID_TABLE[3] = 0x33888800; 300 break; 301 case 4: 302 cs->GL_MULTI_SAMPLE_CONFIG = VIVS_GL_MULTI_SAMPLE_CONFIG_MSAA_SAMPLES_4X; 303 cs->msaa_mode = true; /* Add input to PS */ 304 cs->RA_MULTISAMPLE_UNK00E04 = 0x0; 305 cs->RA_MULTISAMPLE_UNK00E10[0] = 0xeaa26e26; 306 cs->RA_MULTISAMPLE_UNK00E10[1] = 0xe6ae622a; 307 cs->RA_MULTISAMPLE_UNK00E10[2] = 0xaaa22a22; 308 cs->RA_CENTROID_TABLE[0] = 0x4a6e2688; 309 cs->RA_CENTROID_TABLE[1] = 0x888888a2; 310 cs->RA_CENTROID_TABLE[2] = 0x888888ea; 311 cs->RA_CENTROID_TABLE[3] = 0x888888c6; 312 cs->RA_CENTROID_TABLE[4] = 0x46622a88; 313 cs->RA_CENTROID_TABLE[5] = 0x888888ae; 314 cs->RA_CENTROID_TABLE[6] = 0x888888e6; 315 cs->RA_CENTROID_TABLE[7] = 0x888888ca; 316 cs->RA_CENTROID_TABLE[8] = 0x262a2288; 317 cs->RA_CENTROID_TABLE[9] = 0x886688a2; 318 cs->RA_CENTROID_TABLE[10] = 0x888866aa; 319 cs->RA_CENTROID_TABLE[11] = 0x668888a6; 320 break; 321 } 322 323 /* Scissor setup */ 324 cs->SE_SCISSOR_LEFT = 0; /* affected by rasterizer and scissor state as well */ 325 cs->SE_SCISSOR_TOP = 0; 326 cs->SE_SCISSOR_RIGHT = (sv->width << 16) + ETNA_SE_SCISSOR_MARGIN_RIGHT; 327 cs->SE_SCISSOR_BOTTOM = (sv->height << 16) + ETNA_SE_SCISSOR_MARGIN_BOTTOM; 328 cs->SE_CLIP_RIGHT = (sv->width << 16) + ETNA_SE_CLIP_MARGIN_RIGHT; 329 cs->SE_CLIP_BOTTOM = (sv->height << 16) + ETNA_SE_CLIP_MARGIN_BOTTOM; 330 331 cs->TS_MEM_CONFIG = ts_mem_config; 332 333 ctx->framebuffer_s = *sv; /* keep copy of original structure */ 334 ctx->dirty |= ETNA_DIRTY_FRAMEBUFFER; 335} 336 337static void 338etna_set_polygon_stipple(struct pipe_context *pctx, 339 const struct pipe_poly_stipple *stipple) 340{ 341 /* NOP */ 342} 343 344static void 345etna_set_scissor_states(struct pipe_context *pctx, unsigned start_slot, 346 unsigned num_scissors, const struct pipe_scissor_state *ss) 347{ 348 struct etna_context *ctx = etna_context(pctx); 349 struct compiled_scissor_state *cs = &ctx->scissor; 350 assert(ss->minx <= ss->maxx); 351 assert(ss->miny <= ss->maxy); 352 353 /* note that this state is only used when rasterizer_state->scissor is on */ 354 ctx->scissor_s = *ss; 355 cs->SE_SCISSOR_LEFT = (ss->minx << 16); 356 cs->SE_SCISSOR_TOP = (ss->miny << 16); 357 cs->SE_SCISSOR_RIGHT = (ss->maxx << 16) + ETNA_SE_SCISSOR_MARGIN_RIGHT; 358 cs->SE_SCISSOR_BOTTOM = (ss->maxy << 16) + ETNA_SE_SCISSOR_MARGIN_BOTTOM; 359 cs->SE_CLIP_RIGHT = (ss->maxx << 16) + ETNA_SE_CLIP_MARGIN_RIGHT; 360 cs->SE_CLIP_BOTTOM = (ss->maxy << 16) + ETNA_SE_CLIP_MARGIN_BOTTOM; 361 362 ctx->dirty |= ETNA_DIRTY_SCISSOR; 363} 364 365static void 366etna_set_viewport_states(struct pipe_context *pctx, unsigned start_slot, 367 unsigned num_scissors, const struct pipe_viewport_state *vs) 368{ 369 struct etna_context *ctx = etna_context(pctx); 370 struct compiled_viewport_state *cs = &ctx->viewport; 371 372 ctx->viewport_s = *vs; 373 /** 374 * For Vivante GPU, viewport z transformation is 0..1 to 0..1 instead of 375 * -1..1 to 0..1. 376 * scaling and translation to 0..1 already happened, so remove that 377 * 378 * z' = (z * 2 - 1) * scale + translate 379 * = z * (2 * scale) + (translate - scale) 380 * 381 * scale' = 2 * scale 382 * translate' = translate - scale 383 */ 384 385 /* must be fixp as v4 state deltas assume it is */ 386 cs->PA_VIEWPORT_SCALE_X = etna_f32_to_fixp16(vs->scale[0]); 387 cs->PA_VIEWPORT_SCALE_Y = etna_f32_to_fixp16(vs->scale[1]); 388 cs->PA_VIEWPORT_SCALE_Z = fui(vs->scale[2] * 2.0f); 389 cs->PA_VIEWPORT_OFFSET_X = etna_f32_to_fixp16(vs->translate[0]); 390 cs->PA_VIEWPORT_OFFSET_Y = etna_f32_to_fixp16(vs->translate[1]); 391 cs->PA_VIEWPORT_OFFSET_Z = fui(vs->translate[2] - vs->scale[2]); 392 393 /* Compute scissor rectangle (fixp) from viewport. 394 * Make sure left is always < right and top always < bottom. 395 */ 396 cs->SE_SCISSOR_LEFT = etna_f32_to_fixp16(MAX2(vs->translate[0] - fabsf(vs->scale[0]), 0.0f)); 397 cs->SE_SCISSOR_TOP = etna_f32_to_fixp16(MAX2(vs->translate[1] - fabsf(vs->scale[1]), 0.0f)); 398 uint32_t right_fixp = etna_f32_to_fixp16(MAX2(vs->translate[0] + fabsf(vs->scale[0]), 0.0f)); 399 uint32_t bottom_fixp = etna_f32_to_fixp16(MAX2(vs->translate[1] + fabsf(vs->scale[1]), 0.0f)); 400 cs->SE_SCISSOR_RIGHT = right_fixp + ETNA_SE_SCISSOR_MARGIN_RIGHT; 401 cs->SE_SCISSOR_BOTTOM = bottom_fixp + ETNA_SE_SCISSOR_MARGIN_BOTTOM; 402 cs->SE_CLIP_RIGHT = right_fixp + ETNA_SE_CLIP_MARGIN_RIGHT; 403 cs->SE_CLIP_BOTTOM = bottom_fixp + ETNA_SE_CLIP_MARGIN_BOTTOM; 404 405 cs->PE_DEPTH_NEAR = fui(0.0); /* not affected if depth mode is Z (as in GL) */ 406 cs->PE_DEPTH_FAR = fui(1.0); 407 ctx->dirty |= ETNA_DIRTY_VIEWPORT; 408} 409 410static void 411etna_set_vertex_buffers(struct pipe_context *pctx, unsigned start_slot, 412 unsigned num_buffers, const struct pipe_vertex_buffer *vb) 413{ 414 struct etna_context *ctx = etna_context(pctx); 415 struct etna_vertexbuf_state *so = &ctx->vertex_buffer; 416 417 util_set_vertex_buffers_mask(so->vb, &so->enabled_mask, vb, start_slot, num_buffers); 418 so->count = util_last_bit(so->enabled_mask); 419 420 for (unsigned idx = start_slot; idx < start_slot + num_buffers; ++idx) { 421 struct compiled_set_vertex_buffer *cs = &so->cvb[idx]; 422 struct pipe_vertex_buffer *vbi = &so->vb[idx]; 423 424 assert(!vbi->user_buffer); /* XXX support user_buffer using 425 etna_usermem_map */ 426 427 if (vbi->buffer) { /* GPU buffer */ 428 cs->FE_VERTEX_STREAM_BASE_ADDR.bo = etna_resource(vbi->buffer)->bo; 429 cs->FE_VERTEX_STREAM_BASE_ADDR.offset = vbi->buffer_offset; 430 cs->FE_VERTEX_STREAM_BASE_ADDR.flags = ETNA_RELOC_READ; 431 cs->FE_VERTEX_STREAM_CONTROL = 432 FE_VERTEX_STREAM_CONTROL_VERTEX_STRIDE(vbi->stride); 433 } else { 434 cs->FE_VERTEX_STREAM_BASE_ADDR.bo = NULL; 435 cs->FE_VERTEX_STREAM_CONTROL = 0; 436 } 437 } 438 439 ctx->dirty |= ETNA_DIRTY_VERTEX_BUFFERS; 440} 441 442static void 443etna_set_index_buffer(struct pipe_context *pctx, const struct pipe_index_buffer *ib) 444{ 445 struct etna_context *ctx = etna_context(pctx); 446 uint32_t ctrl; 447 448 if (ib) { 449 pipe_resource_reference(&ctx->index_buffer.ib.buffer, ib->buffer); 450 memcpy(&ctx->index_buffer.ib, ib, sizeof(ctx->index_buffer.ib)); 451 ctrl = translate_index_size(ctx->index_buffer.ib.index_size); 452 } else { 453 pipe_resource_reference(&ctx->index_buffer.ib.buffer, NULL); 454 ctrl = 0; 455 } 456 457 if (ctx->index_buffer.ib.buffer && ctrl != ETNA_NO_MATCH) { 458 ctx->index_buffer.FE_INDEX_STREAM_BASE_ADDR.bo = etna_resource(ctx->index_buffer.ib.buffer)->bo; 459 ctx->index_buffer.FE_INDEX_STREAM_BASE_ADDR.offset = ctx->index_buffer.ib.offset; 460 ctx->index_buffer.FE_INDEX_STREAM_BASE_ADDR.flags = ETNA_RELOC_READ; 461 ctx->index_buffer.FE_INDEX_STREAM_CONTROL = ctrl; 462 } else { 463 ctx->index_buffer.FE_INDEX_STREAM_BASE_ADDR.bo = NULL; 464 ctx->index_buffer.FE_INDEX_STREAM_CONTROL = 0; 465 } 466 467 ctx->dirty |= ETNA_DIRTY_INDEX_BUFFER; 468} 469 470static void 471etna_blend_state_bind(struct pipe_context *pctx, void *bs) 472{ 473 struct etna_context *ctx = etna_context(pctx); 474 475 ctx->blend = bs; 476 ctx->dirty |= ETNA_DIRTY_BLEND; 477} 478 479static void 480etna_blend_state_delete(struct pipe_context *pctx, void *bs) 481{ 482 FREE(bs); 483} 484 485static void 486etna_rasterizer_state_bind(struct pipe_context *pctx, void *rs) 487{ 488 struct etna_context *ctx = etna_context(pctx); 489 490 ctx->rasterizer = rs; 491 ctx->dirty |= ETNA_DIRTY_RASTERIZER; 492} 493 494static void 495etna_rasterizer_state_delete(struct pipe_context *pctx, void *rs) 496{ 497 FREE(rs); 498} 499 500static void 501etna_zsa_state_bind(struct pipe_context *pctx, void *zs) 502{ 503 struct etna_context *ctx = etna_context(pctx); 504 505 ctx->zsa = zs; 506 ctx->dirty |= ETNA_DIRTY_ZSA; 507} 508 509static void 510etna_zsa_state_delete(struct pipe_context *pctx, void *zs) 511{ 512 FREE(zs); 513} 514 515/** Create vertex element states, which define a layout for fetching 516 * vertices for rendering. 517 */ 518static void * 519etna_vertex_elements_state_create(struct pipe_context *pctx, 520 unsigned num_elements, const struct pipe_vertex_element *elements) 521{ 522 struct etna_context *ctx = etna_context(pctx); 523 struct compiled_vertex_elements_state *cs = CALLOC_STRUCT(compiled_vertex_elements_state); 524 525 if (!cs) 526 return NULL; 527 528 if (num_elements > ctx->specs.vertex_max_elements) { 529 BUG("number of elements (%u) exceeds chip maximum (%u)", num_elements, 530 ctx->specs.vertex_max_elements); 531 return NULL; 532 } 533 534 /* XXX could minimize number of consecutive stretches here by sorting, and 535 * permuting the inputs in shader or does Mesa do this already? */ 536 537 /* Check that vertex element binding is compatible with hardware; thus 538 * elements[idx].vertex_buffer_index are < stream_count. If not, the binding 539 * uses more streams than is supported, and u_vbuf should have done some 540 * reorganization for compatibility. */ 541 542 /* TODO: does mesa this for us? */ 543 bool incompatible = false; 544 for (unsigned idx = 0; idx < num_elements; ++idx) { 545 if (elements[idx].vertex_buffer_index >= ctx->specs.stream_count || elements[idx].instance_divisor > 0) 546 incompatible = true; 547 } 548 549 cs->num_elements = num_elements; 550 if (incompatible || num_elements == 0) { 551 DBG("Error: zero vertex elements, or more vertex buffers used than supported"); 552 FREE(cs); 553 return NULL; 554 } 555 556 unsigned start_offset = 0; /* start of current consecutive stretch */ 557 bool nonconsecutive = true; /* previous value of nonconsecutive */ 558 559 for (unsigned idx = 0; idx < num_elements; ++idx) { 560 unsigned element_size = util_format_get_blocksize(elements[idx].src_format); 561 unsigned end_offset = elements[idx].src_offset + element_size; 562 uint32_t format_type, normalize; 563 564 if (nonconsecutive) 565 start_offset = elements[idx].src_offset; 566 567 /* maximum vertex size is 256 bytes */ 568 assert(element_size != 0 && end_offset <= 256); 569 570 /* check whether next element is consecutive to this one */ 571 nonconsecutive = (idx == (num_elements - 1)) || 572 elements[idx + 1].vertex_buffer_index != elements[idx].vertex_buffer_index || 573 end_offset != elements[idx + 1].src_offset; 574 575 format_type = translate_vertex_format_type(elements[idx].src_format); 576 normalize = translate_vertex_format_normalize(elements[idx].src_format); 577 578 assert(format_type != ETNA_NO_MATCH); 579 assert(normalize != ETNA_NO_MATCH); 580 581 cs->FE_VERTEX_ELEMENT_CONFIG[idx] = 582 COND(nonconsecutive, VIVS_FE_VERTEX_ELEMENT_CONFIG_NONCONSECUTIVE) | 583 format_type | 584 VIVS_FE_VERTEX_ELEMENT_CONFIG_NUM(util_format_get_nr_components(elements[idx].src_format)) | 585 normalize | VIVS_FE_VERTEX_ELEMENT_CONFIG_ENDIAN(ENDIAN_MODE_NO_SWAP) | 586 VIVS_FE_VERTEX_ELEMENT_CONFIG_STREAM(elements[idx].vertex_buffer_index) | 587 VIVS_FE_VERTEX_ELEMENT_CONFIG_START(elements[idx].src_offset) | 588 VIVS_FE_VERTEX_ELEMENT_CONFIG_END(end_offset - start_offset); 589 } 590 591 return cs; 592} 593 594static void 595etna_vertex_elements_state_delete(struct pipe_context *pctx, void *ve) 596{ 597 FREE(ve); 598} 599 600static void 601etna_vertex_elements_state_bind(struct pipe_context *pctx, void *ve) 602{ 603 struct etna_context *ctx = etna_context(pctx); 604 605 ctx->vertex_elements = ve; 606 ctx->dirty |= ETNA_DIRTY_VERTEX_ELEMENTS; 607} 608 609struct etna_state_updater { 610 bool (*update)(struct etna_context *ctx); 611 uint32_t dirty; 612}; 613 614static const struct etna_state_updater etna_state_updates[] = { 615 { 616 etna_shader_update_vertex, ETNA_DIRTY_SHADER | ETNA_DIRTY_VERTEX_ELEMENTS, 617 }, 618 { 619 etna_shader_link, ETNA_DIRTY_SHADER, 620 } 621}; 622 623bool 624etna_state_update(struct etna_context *ctx) 625{ 626 for (unsigned int i = 0; i < ARRAY_SIZE(etna_state_updates); i++) 627 if (ctx->dirty & etna_state_updates[i].dirty) 628 if (!etna_state_updates[i].update(ctx)) 629 return false; 630 631 return true; 632} 633 634void 635etna_state_init(struct pipe_context *pctx) 636{ 637 pctx->set_blend_color = etna_set_blend_color; 638 pctx->set_stencil_ref = etna_set_stencil_ref; 639 pctx->set_clip_state = etna_set_clip_state; 640 pctx->set_sample_mask = etna_set_sample_mask; 641 pctx->set_constant_buffer = etna_set_constant_buffer; 642 pctx->set_framebuffer_state = etna_set_framebuffer_state; 643 pctx->set_polygon_stipple = etna_set_polygon_stipple; 644 pctx->set_scissor_states = etna_set_scissor_states; 645 pctx->set_viewport_states = etna_set_viewport_states; 646 647 pctx->set_vertex_buffers = etna_set_vertex_buffers; 648 pctx->set_index_buffer = etna_set_index_buffer; 649 650 pctx->bind_blend_state = etna_blend_state_bind; 651 pctx->delete_blend_state = etna_blend_state_delete; 652 653 pctx->bind_rasterizer_state = etna_rasterizer_state_bind; 654 pctx->delete_rasterizer_state = etna_rasterizer_state_delete; 655 656 pctx->bind_depth_stencil_alpha_state = etna_zsa_state_bind; 657 pctx->delete_depth_stencil_alpha_state = etna_zsa_state_delete; 658 659 pctx->create_vertex_elements_state = etna_vertex_elements_state_create; 660 pctx->delete_vertex_elements_state = etna_vertex_elements_state_delete; 661 pctx->bind_vertex_elements_state = etna_vertex_elements_state_bind; 662} 663