src/gallium/drivers/freedreno/freedreno_state.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #include "pipe/p_state.h"
  30 #include "util/u_dual_blend.h"
  31 #include "util/u_string.h"
  32 #include "util/u_memory.h"
  33 #include "util/u_helpers.h"
  34
  35 #include "freedreno_state.h"
  36 #include "freedreno_context.h"
  37 #include "freedreno_resource.h"
  38 #include "freedreno_texture.h"
  39 #include "freedreno_gmem.h"
  40 #include "freedreno_query_hw.h"
  41 #include "freedreno_util.h"
  42
  43 /* All the generic state handling.. In case of CSO's that are specific
  44  * to the GPU version, when the bind and the delete are common they can
  45  * go in here.
  46  */
  47
  48 static void
  49 fd_set_blend_color(struct pipe_context *pctx,
  50                 const struct pipe_blend_color *blend_color)
  51 {
  52         struct fd_context *ctx = fd_context(pctx);
  53         ctx->blend_color = *blend_color;
  54         ctx->dirty |= FD_DIRTY_BLEND_COLOR;
  55 }
  56
  57 static void
  58 fd_set_stencil_ref(struct pipe_context *pctx,
  59                 const struct pipe_stencil_ref *stencil_ref)
  60 {
  61         struct fd_context *ctx = fd_context(pctx);
  62         ctx->stencil_ref =* stencil_ref;
  63         ctx->dirty |= FD_DIRTY_STENCIL_REF;
  64 }
  65
  66 static void
  67 fd_set_clip_state(struct pipe_context *pctx,
  68                 const struct pipe_clip_state *clip)
  69 {
  70         struct fd_context *ctx = fd_context(pctx);
  71         ctx->ucp = *clip;
  72         ctx->dirty |= FD_DIRTY_UCP;
  73 }
  74
  75 static void
  76 fd_set_sample_mask(struct pipe_context *pctx, unsigned sample_mask)
  77 {
  78         struct fd_context *ctx = fd_context(pctx);
  79         ctx->sample_mask = (uint16_t)sample_mask;
  80         ctx->dirty |= FD_DIRTY_SAMPLE_MASK;
  81 }
  82
  83 /* notes from calim on #dri-devel:
  84  * index==0 will be non-UBO (ie. glUniformXYZ()) all packed together padded
  85  * out to vec4's
  86  * I should be able to consider that I own the user_ptr until the next
  87  * set_constant_buffer() call, at which point I don't really care about the
  88  * previous values.
  89  * index>0 will be UBO's.. well, I'll worry about that later
  90  */
  91 static void
  92 fd_set_constant_buffer(struct pipe_context *pctx,
  93                 enum pipe_shader_type shader, uint index,
  94                 const struct pipe_constant_buffer *cb)
  95 {
  96         struct fd_context *ctx = fd_context(pctx);
  97         struct fd_constbuf_stateobj *so = &ctx->constbuf[shader];
  98
  99         util_copy_constant_buffer(&so->cb[index], cb);
 100
 101         /* Note that the state tracker can unbind constant buffers by
 102          * passing NULL here.
 103          */
 104         if (unlikely(!cb)) {
 105                 so->enabled_mask &= ~(1 << index);
 106                 so->dirty_mask &= ~(1 << index);
 107                 return;
 108         }
 109
 110         so->enabled_mask |= 1 << index;
 111         so->dirty_mask |= 1 << index;
 112         ctx->dirty_shader[shader] |= FD_DIRTY_SHADER_CONST;
 113         ctx->dirty |= FD_DIRTY_CONST;
 114 }
 115
 116 static void
 117 fd_set_framebuffer_state(struct pipe_context *pctx,
 118                 const struct pipe_framebuffer_state *framebuffer)
 119 {
 120         struct fd_context *ctx = fd_context(pctx);
 121         struct pipe_framebuffer_state *cso;
 122
 123         if (ctx->screen->reorder) {
 124                 struct fd_batch *batch, *old_batch = NULL;
 125
 126                 fd_batch_reference(&old_batch, ctx->batch);
 127
 128                 if (likely(old_batch))
 129                         fd_batch_set_stage(old_batch, old_batch->draw, FD_STAGE_NULL);
 130
 131                 batch = fd_batch_from_fb(&ctx->screen->batch_cache, ctx, framebuffer);
 132                 fd_batch_reference(&ctx->batch, NULL);
 133                 fd_reset_wfi(batch);
 134                 ctx->batch = batch;
 135                 fd_context_all_dirty(ctx);
 136
 137                 if (old_batch && old_batch->blit && !old_batch->back_blit) {
 138                         /* for blits, there is not really much point in hanging on
 139                          * to the uncommitted batch (ie. you probably don't blit
 140                          * multiple times to the same surface), so we might as
 141                          * well go ahead and flush this one:
 142                          */
 143                         fd_batch_flush(old_batch, false);
 144                 }
 145
 146                 fd_batch_reference(&old_batch, NULL);
 147         } else {
 148                 DBG("%d: cbufs[0]=%p, zsbuf=%p", ctx->batch->needs_flush,
 149                                 framebuffer->cbufs[0], framebuffer->zsbuf);
 150                 fd_batch_flush(ctx->batch, false);
 151         }
 152
 153         cso = &ctx->batch->framebuffer;
 154
 155         util_copy_framebuffer_state(cso, framebuffer);
 156
 157         ctx->dirty |= FD_DIRTY_FRAMEBUFFER;
 158
 159         ctx->disabled_scissor.minx = 0;
 160         ctx->disabled_scissor.miny = 0;
 161         ctx->disabled_scissor.maxx = cso->width;
 162         ctx->disabled_scissor.maxy = cso->height;
 163
 164         ctx->dirty |= FD_DIRTY_SCISSOR;
 165 }
 166
 167 static void
 168 fd_set_polygon_stipple(struct pipe_context *pctx,
 169                 const struct pipe_poly_stipple *stipple)
 170 {
 171         struct fd_context *ctx = fd_context(pctx);
 172         ctx->stipple = *stipple;
 173         ctx->dirty |= FD_DIRTY_STIPPLE;
 174 }
 175
 176 static void
 177 fd_set_scissor_states(struct pipe_context *pctx,
 178                 unsigned start_slot,
 179                 unsigned num_scissors,
 180                 const struct pipe_scissor_state *scissor)
 181 {
 182         struct fd_context *ctx = fd_context(pctx);
 183
 184         ctx->scissor = *scissor;
 185         ctx->dirty |= FD_DIRTY_SCISSOR;
 186 }
 187
 188 static void
 189 fd_set_viewport_states(struct pipe_context *pctx,
 190                 unsigned start_slot,
 191                 unsigned num_viewports,
 192                 const struct pipe_viewport_state *viewport)
 193 {
 194         struct fd_context *ctx = fd_context(pctx);
 195         ctx->viewport = *viewport;
 196         ctx->dirty |= FD_DIRTY_VIEWPORT;
 197 }
 198
 199 static void
 200 fd_set_vertex_buffers(struct pipe_context *pctx,
 201                 unsigned start_slot, unsigned count,
 202                 const struct pipe_vertex_buffer *vb)
 203 {
 204         struct fd_context *ctx = fd_context(pctx);
 205         struct fd_vertexbuf_stateobj *so = &ctx->vtx.vertexbuf;
 206         int i;
 207
 208         /* on a2xx, pitch is encoded in the vtx fetch instruction, so
 209          * we need to mark VTXSTATE as dirty as well to trigger patching
 210          * and re-emitting the vtx shader:
 211          */
 212         if (ctx->screen->gpu_id < 300) {
 213                 for (i = 0; i < count; i++) {
 214                         bool new_enabled = vb && (vb[i].buffer || vb[i].user_buffer);
 215                         bool old_enabled = so->vb[i].buffer || so->vb[i].user_buffer;
 216                         uint32_t new_stride = vb ? vb[i].stride : 0;
 217                         uint32_t old_stride = so->vb[i].stride;
 218                         if ((new_enabled != old_enabled) || (new_stride != old_stride)) {
 219                                 ctx->dirty |= FD_DIRTY_VTXSTATE;
 220                                 break;
 221                         }
 222                 }
 223         }
 224
 225         util_set_vertex_buffers_mask(so->vb, &so->enabled_mask, vb, start_slot, count);
 226         so->count = util_last_bit(so->enabled_mask);
 227
 228         ctx->dirty |= FD_DIRTY_VTXBUF;
 229 }
 230
 231 static void
 232 fd_set_index_buffer(struct pipe_context *pctx,
 233                 const struct pipe_index_buffer *ib)
 234 {
 235         struct fd_context *ctx = fd_context(pctx);
 236
 237         if (ib) {
 238                 pipe_resource_reference(&ctx->indexbuf.buffer, ib->buffer);
 239                 ctx->indexbuf.index_size = ib->index_size;
 240                 ctx->indexbuf.offset = ib->offset;
 241                 ctx->indexbuf.user_buffer = ib->user_buffer;
 242         } else {
 243                 pipe_resource_reference(&ctx->indexbuf.buffer, NULL);
 244         }
 245
 246         ctx->dirty |= FD_DIRTY_INDEXBUF;
 247 }
 248
 249 static void
 250 fd_blend_state_bind(struct pipe_context *pctx, void *hwcso)
 251 {
 252         struct fd_context *ctx = fd_context(pctx);
 253         struct pipe_blend_state *cso = hwcso;
 254         bool old_is_dual = ctx->blend ?
 255                 ctx->blend->rt[0].blend_enable && util_blend_state_is_dual(ctx->blend, 0) :
 256                 false;
 257         bool new_is_dual = cso ?
 258                 cso->rt[0].blend_enable && util_blend_state_is_dual(cso, 0) :
 259                 false;
 260         ctx->blend = hwcso;
 261         ctx->dirty |= FD_DIRTY_BLEND;
 262         if (old_is_dual != new_is_dual)
 263                 ctx->dirty |= FD_DIRTY_BLEND_DUAL;
 264 }
 265
 266 static void
 267 fd_blend_state_delete(struct pipe_context *pctx, void *hwcso)
 268 {
 269         FREE(hwcso);
 270 }
 271
 272 static void
 273 fd_rasterizer_state_bind(struct pipe_context *pctx, void *hwcso)
 274 {
 275         struct fd_context *ctx = fd_context(pctx);
 276         struct pipe_scissor_state *old_scissor = fd_context_get_scissor(ctx);
 277
 278         ctx->rasterizer = hwcso;
 279         ctx->dirty |= FD_DIRTY_RASTERIZER;
 280
 281         /* if scissor enable bit changed we need to mark scissor
 282          * state as dirty as well:
 283          * NOTE: we can do a shallow compare, since we only care
 284          * if it changed to/from &ctx->disable_scissor
 285          */
 286         if (old_scissor != fd_context_get_scissor(ctx))
 287                 ctx->dirty |= FD_DIRTY_SCISSOR;
 288 }
 289
 290 static void
 291 fd_rasterizer_state_delete(struct pipe_context *pctx, void *hwcso)
 292 {
 293         FREE(hwcso);
 294 }
 295
 296 static void
 297 fd_zsa_state_bind(struct pipe_context *pctx, void *hwcso)
 298 {
 299         struct fd_context *ctx = fd_context(pctx);
 300         ctx->zsa = hwcso;
 301         ctx->dirty |= FD_DIRTY_ZSA;
 302 }
 303
 304 static void
 305 fd_zsa_state_delete(struct pipe_context *pctx, void *hwcso)
 306 {
 307         FREE(hwcso);
 308 }
 309
 310 static void *
 311 fd_vertex_state_create(struct pipe_context *pctx, unsigned num_elements,
 312                 const struct pipe_vertex_element *elements)
 313 {
 314         struct fd_vertex_stateobj *so = CALLOC_STRUCT(fd_vertex_stateobj);
 315
 316         if (!so)
 317                 return NULL;
 318
 319         memcpy(so->pipe, elements, sizeof(*elements) * num_elements);
 320         so->num_elements = num_elements;
 321
 322         return so;
 323 }
 324
 325 static void
 326 fd_vertex_state_delete(struct pipe_context *pctx, void *hwcso)
 327 {
 328         FREE(hwcso);
 329 }
 330
 331 static void
 332 fd_vertex_state_bind(struct pipe_context *pctx, void *hwcso)
 333 {
 334         struct fd_context *ctx = fd_context(pctx);
 335         ctx->vtx.vtx = hwcso;
 336         ctx->dirty |= FD_DIRTY_VTXSTATE;
 337 }
 338
 339 static struct pipe_stream_output_target *
 340 fd_create_stream_output_target(struct pipe_context *pctx,
 341                 struct pipe_resource *prsc, unsigned buffer_offset,
 342                 unsigned buffer_size)
 343 {
 344         struct pipe_stream_output_target *target;
 345         struct fd_resource *rsc = fd_resource(prsc);
 346
 347         target = CALLOC_STRUCT(pipe_stream_output_target);
 348         if (!target)
 349                 return NULL;
 350
 351         pipe_reference_init(&target->reference, 1);
 352         pipe_resource_reference(&target->buffer, prsc);
 353
 354         target->context = pctx;
 355         target->buffer_offset = buffer_offset;
 356         target->buffer_size = buffer_size;
 357
 358         assert(rsc->base.b.target == PIPE_BUFFER);
 359         util_range_add(&rsc->valid_buffer_range,
 360                 buffer_offset, buffer_offset + buffer_size);
 361
 362         return target;
 363 }
 364
 365 static void
 366 fd_stream_output_target_destroy(struct pipe_context *pctx,
 367                 struct pipe_stream_output_target *target)
 368 {
 369         pipe_resource_reference(&target->buffer, NULL);
 370         FREE(target);
 371 }
 372
 373 static void
 374 fd_set_stream_output_targets(struct pipe_context *pctx,
 375                 unsigned num_targets, struct pipe_stream_output_target **targets,
 376                 const unsigned *offsets)
 377 {
 378         struct fd_context *ctx = fd_context(pctx);
 379         struct fd_streamout_stateobj *so = &ctx->streamout;
 380         unsigned i;
 381
 382         debug_assert(num_targets <= ARRAY_SIZE(so->targets));
 383
 384         for (i = 0; i < num_targets; i++) {
 385                 boolean changed = targets[i] != so->targets[i];
 386                 boolean append = (offsets[i] == (unsigned)-1);
 387
 388                 if (!changed && append)
 389                         continue;
 390
 391                 if (!append)
 392                         so->offsets[i] = offsets[i];
 393
 394                 pipe_so_target_reference(&so->targets[i], targets[i]);
 395         }
 396
 397         for (; i < so->num_targets; i++) {
 398                 pipe_so_target_reference(&so->targets[i], NULL);
 399         }
 400
 401         so->num_targets = num_targets;
 402
 403         ctx->dirty |= FD_DIRTY_STREAMOUT;
 404 }
 405
 406 void
 407 fd_state_init(struct pipe_context *pctx)
 408 {
 409         pctx->set_blend_color = fd_set_blend_color;
 410         pctx->set_stencil_ref = fd_set_stencil_ref;
 411         pctx->set_clip_state = fd_set_clip_state;
 412         pctx->set_sample_mask = fd_set_sample_mask;
 413         pctx->set_constant_buffer = fd_set_constant_buffer;
 414         pctx->set_framebuffer_state = fd_set_framebuffer_state;
 415         pctx->set_polygon_stipple = fd_set_polygon_stipple;
 416         pctx->set_scissor_states = fd_set_scissor_states;
 417         pctx->set_viewport_states = fd_set_viewport_states;
 418
 419         pctx->set_vertex_buffers = fd_set_vertex_buffers;
 420         pctx->set_index_buffer = fd_set_index_buffer;
 421
 422         pctx->bind_blend_state = fd_blend_state_bind;
 423         pctx->delete_blend_state = fd_blend_state_delete;
 424
 425         pctx->bind_rasterizer_state = fd_rasterizer_state_bind;
 426         pctx->delete_rasterizer_state = fd_rasterizer_state_delete;
 427
 428         pctx->bind_depth_stencil_alpha_state = fd_zsa_state_bind;
 429         pctx->delete_depth_stencil_alpha_state = fd_zsa_state_delete;
 430
 431         pctx->create_vertex_elements_state = fd_vertex_state_create;
 432         pctx->delete_vertex_elements_state = fd_vertex_state_delete;
 433         pctx->bind_vertex_elements_state = fd_vertex_state_bind;
 434
 435         pctx->create_stream_output_target = fd_create_stream_output_target;
 436         pctx->stream_output_target_destroy = fd_stream_output_target_destroy;
 437         pctx->set_stream_output_targets = fd_set_stream_output_targets;
 438 }