src/gallium/drivers/freedreno/freedreno_context.h

   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 #ifndef FREEDRENO_CONTEXT_H_
  30 #define FREEDRENO_CONTEXT_H_
  31
  32 #include "pipe/p_context.h"
  33 #include "indices/u_primconvert.h"
  34 #include "util/u_blitter.h"
  35 #include "util/list.h"
  36 #include "util/slab.h"
  37 #include "util/u_string.h"
  38
  39 #include "freedreno_batch.h"
  40 #include "freedreno_screen.h"
  41 #include "freedreno_gmem.h"
  42 #include "freedreno_util.h"
  43
  44 #define BORDER_COLOR_UPLOAD_SIZE (2 * PIPE_MAX_SAMPLERS * BORDERCOLOR_SIZE)
  45
  46 struct fd_vertex_stateobj;
  47
  48 struct fd_texture_stateobj {
  49         struct pipe_sampler_view *textures[PIPE_MAX_SAMPLERS];
  50         unsigned num_textures;
  51         unsigned valid_textures;
  52         struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
  53         unsigned num_samplers;
  54         unsigned valid_samplers;
  55 };
  56
  57 struct fd_program_stateobj {
  58         void *vp, *fp;
  59
  60         /* rest only used by fd2.. split out: */
  61         uint8_t num_exports;
  62         /* Indexed by semantic name or TGSI_SEMANTIC_COUNT + semantic index
  63          * for TGSI_SEMANTIC_GENERIC.  Special vs exports (position and point-
  64          * size) are not included in this
  65          */
  66         uint8_t export_linkage[63];
  67 };
  68
  69 struct fd_constbuf_stateobj {
  70         struct pipe_constant_buffer cb[PIPE_MAX_CONSTANT_BUFFERS];
  71         uint32_t enabled_mask;
  72         uint32_t dirty_mask;
  73 };
  74
  75 struct fd_vertexbuf_stateobj {
  76         struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
  77         unsigned count;
  78         uint32_t enabled_mask;
  79         uint32_t dirty_mask;
  80 };
  81
  82 struct fd_vertex_stateobj {
  83         struct pipe_vertex_element pipe[PIPE_MAX_ATTRIBS];
  84         unsigned num_elements;
  85 };
  86
  87 struct fd_streamout_stateobj {
  88         struct pipe_stream_output_target *targets[PIPE_MAX_SO_BUFFERS];
  89         unsigned num_targets;
  90         /* Track offset from vtxcnt for streamout data.  This counter
  91          * is just incremented by # of vertices on each draw until
  92          * reset or new streamout buffer bound.
  93          *
  94          * When we eventually have GS, the CPU won't actually know the
  95          * number of vertices per draw, so I think we'll have to do
  96          * something more clever.
  97          */
  98         unsigned offsets[PIPE_MAX_SO_BUFFERS];
  99 };
 100
 101 /* group together the vertex and vertexbuf state.. for ease of passing
 102  * around, and because various internal operations (gmem<->mem, etc)
 103  * need their own vertex state:
 104  */
 105 struct fd_vertex_state {
 106         struct fd_vertex_stateobj *vtx;
 107         struct fd_vertexbuf_stateobj vertexbuf;
 108 };
 109
 110
 111 struct fd_context {
 112         struct pipe_context base;
 113
 114         struct fd_device *dev;
 115         struct fd_screen *screen;
 116
 117         struct util_queue flush_queue;
 118
 119         struct blitter_context *blitter;
 120         void *clear_rs_state;
 121         struct primconvert_context *primconvert;
 122
 123         /* slab for pipe_transfer allocations: */
 124         struct slab_child_pool transfer_pool;
 125
 126         /* slabs for fd_hw_sample and fd_hw_sample_period allocations: */
 127         struct slab_mempool sample_pool;
 128         struct slab_mempool sample_period_pool;
 129
 130         /* sample-providers for hw queries: */
 131         const struct fd_hw_sample_provider *sample_providers[MAX_HW_SAMPLE_PROVIDERS];
 132
 133         /* list of active queries: */
 134         struct list_head active_queries;
 135
 136         /* table with PIPE_PRIM_MAX entries mapping PIPE_PRIM_x to
 137          * DI_PT_x value to use for draw initiator.  There are some
 138          * slight differences between generation:
 139          */
 140         const uint8_t *primtypes;
 141         uint32_t primtype_mask;
 142
 143         /* shaders used by clear, and gmem->mem blits: */
 144         struct fd_program_stateobj solid_prog; // TODO move to screen?
 145
 146         /* shaders used by mem->gmem blits: */
 147         struct fd_program_stateobj blit_prog[MAX_RENDER_TARGETS]; // TODO move to screen?
 148         struct fd_program_stateobj blit_z, blit_zs;
 149
 150         /* Stats/counters:
 151          */
 152         struct {
 153                 uint64_t prims_emitted;
 154                 uint64_t prims_generated;
 155                 uint64_t draw_calls;
 156                 uint64_t batch_total, batch_sysmem, batch_gmem, batch_restore;
 157         } stats;
 158
 159         /* Current batch.. the rule here is that you can deref ctx->batch
 160          * in codepaths from pipe_context entrypoints.  But not in code-
 161          * paths from fd_batch_flush() (basically, the stuff that gets
 162          * called from GMEM code), since in those code-paths the batch
 163          * you care about is not necessarily the same as ctx->batch.
 164          */
 165         struct fd_batch *batch;
 166
 167         struct pipe_fence_handle *last_fence;
 168
 169         /* Are we in process of shadowing a resource? Used to detect recursion
 170          * in transfer_map, and skip unneeded synchronization.
 171          */
 172         bool in_shadow : 1;
 173
 174         /* Ie. in blit situation where we no longer care about previous framebuffer
 175          * contents.  Main point is to eliminate blits from fd_try_shadow_resource().
 176          * For example, in case of texture upload + gen-mipmaps.
 177          */
 178         bool in_blit : 1;
 179
 180         struct pipe_scissor_state scissor;
 181
 182         /* we don't have a disable/enable bit for scissor, so instead we keep
 183          * a disabled-scissor state which matches the entire bound framebuffer
 184          * and use that when scissor is not enabled.
 185          */
 186         struct pipe_scissor_state disabled_scissor;
 187
 188         /* Current gmem/tiling configuration.. gets updated on render_tiles()
 189          * if out of date with current maximal-scissor/cpp:
 190          *
 191          * (NOTE: this is kind of related to the batch, but moving it there
 192          * means we'd always have to recalc tiles ever batch)
 193          */
 194         struct fd_gmem_stateobj gmem;
 195         struct fd_vsc_pipe      pipe[8];
 196         struct fd_tile          tile[512];
 197
 198         /* which state objects need to be re-emit'd: */
 199         enum {
 200                 FD_DIRTY_BLEND       = (1 <<  0),
 201                 FD_DIRTY_RASTERIZER  = (1 <<  1),
 202                 FD_DIRTY_ZSA         = (1 <<  2),
 203                 FD_DIRTY_FRAGTEX     = (1 <<  3),
 204                 FD_DIRTY_VERTTEX     = (1 <<  4),
 205                 FD_DIRTY_TEXSTATE    = (1 <<  5),
 206
 207                 FD_SHADER_DIRTY_VP   = (1 <<  6),
 208                 FD_SHADER_DIRTY_FP   = (1 <<  7),
 209                 /* skip geom/tcs/tes/compute */
 210                 FD_DIRTY_PROG        = FD_SHADER_DIRTY_FP | FD_SHADER_DIRTY_VP,
 211
 212                 FD_DIRTY_BLEND_COLOR = (1 << 12),
 213                 FD_DIRTY_STENCIL_REF = (1 << 13),
 214                 FD_DIRTY_SAMPLE_MASK = (1 << 14),
 215                 FD_DIRTY_FRAMEBUFFER = (1 << 15),
 216                 FD_DIRTY_STIPPLE     = (1 << 16),
 217                 FD_DIRTY_VIEWPORT    = (1 << 17),
 218                 FD_DIRTY_CONSTBUF    = (1 << 18),
 219                 FD_DIRTY_VTXSTATE    = (1 << 19),
 220                 FD_DIRTY_VTXBUF      = (1 << 20),
 221                 FD_DIRTY_INDEXBUF    = (1 << 21),
 222                 FD_DIRTY_SCISSOR     = (1 << 22),
 223                 FD_DIRTY_STREAMOUT   = (1 << 23),
 224                 FD_DIRTY_UCP         = (1 << 24),
 225                 FD_DIRTY_BLEND_DUAL  = (1 << 25),
 226         } dirty;
 227
 228         struct pipe_blend_state *blend;
 229         struct pipe_rasterizer_state *rasterizer;
 230         struct pipe_depth_stencil_alpha_state *zsa;
 231
 232         struct fd_texture_stateobj verttex, fragtex;
 233
 234         struct fd_program_stateobj prog;
 235
 236         struct fd_vertex_state vtx;
 237
 238         struct pipe_blend_color blend_color;
 239         struct pipe_stencil_ref stencil_ref;
 240         unsigned sample_mask;
 241         struct pipe_poly_stipple stipple;
 242         struct pipe_viewport_state viewport;
 243         struct fd_constbuf_stateobj constbuf[PIPE_SHADER_TYPES];
 244         struct pipe_index_buffer indexbuf;
 245         struct fd_streamout_stateobj streamout;
 246         struct pipe_clip_state ucp;
 247
 248         struct pipe_query *cond_query;
 249         bool cond_cond; /* inverted rendering condition */
 250         uint cond_mode;
 251
 252         struct pipe_debug_callback debug;
 253
 254         /* GMEM/tile handling fxns: */
 255         void (*emit_tile_init)(struct fd_batch *batch);
 256         void (*emit_tile_prep)(struct fd_batch *batch, struct fd_tile *tile);
 257         void (*emit_tile_mem2gmem)(struct fd_batch *batch, struct fd_tile *tile);
 258         void (*emit_tile_renderprep)(struct fd_batch *batch, struct fd_tile *tile);
 259         void (*emit_tile_gmem2mem)(struct fd_batch *batch, struct fd_tile *tile);
 260         void (*emit_tile_fini)(struct fd_batch *batch);   /* optional */
 261
 262         /* optional, for GMEM bypass: */
 263         void (*emit_sysmem_prep)(struct fd_batch *batch);
 264         void (*emit_sysmem_fini)(struct fd_batch *batch);
 265
 266         /* draw: */
 267         bool (*draw_vbo)(struct fd_context *ctx, const struct pipe_draw_info *info);
 268         void (*clear)(struct fd_context *ctx, unsigned buffers,
 269                         const union pipe_color_union *color, double depth, unsigned stencil);
 270
 271         /* constant emit:  (note currently not used/needed for a2xx) */
 272         void (*emit_const)(struct fd_ringbuffer *ring, enum shader_t type,
 273                         uint32_t regid, uint32_t offset, uint32_t sizedwords,
 274                         const uint32_t *dwords, struct pipe_resource *prsc);
 275         /* emit bo addresses as constant: */
 276         void (*emit_const_bo)(struct fd_ringbuffer *ring, enum shader_t type, boolean write,
 277                         uint32_t regid, uint32_t num, struct pipe_resource **prscs, uint32_t *offsets);
 278
 279         /* indirect-branch emit: */
 280         void (*emit_ib)(struct fd_ringbuffer *ring, struct fd_ringbuffer *target);
 281
 282         /*
 283          * Common pre-cooked VBO state (used for a3xx and later):
 284          */
 285
 286         /* for clear/gmem->mem vertices, and mem->gmem */
 287         struct pipe_resource *solid_vbuf;
 288
 289         /* for mem->gmem tex coords: */
 290         struct pipe_resource *blit_texcoord_vbuf;
 291
 292         /* vertex state for solid_vbuf:
 293          *    - solid_vbuf / 12 / R32G32B32_FLOAT
 294          */
 295         struct fd_vertex_state solid_vbuf_state;
 296
 297         /* vertex state for blit_prog:
 298          *    - blit_texcoord_vbuf / 8 / R32G32_FLOAT
 299          *    - solid_vbuf / 12 / R32G32B32_FLOAT
 300          */
 301         struct fd_vertex_state blit_vbuf_state;
 302 };
 303
 304 static inline struct fd_context *
 305 fd_context(struct pipe_context *pctx)
 306 {
 307         return (struct fd_context *)pctx;
 308 }
 309
 310 static inline void
 311 fd_context_assert_locked(struct fd_context *ctx)
 312 {
 313         pipe_mutex_assert_locked(ctx->screen->lock);
 314 }
 315
 316 static inline void
 317 fd_context_lock(struct fd_context *ctx)
 318 {
 319         mtx_lock(&ctx->screen->lock);
 320 }
 321
 322 static inline void
 323 fd_context_unlock(struct fd_context *ctx)
 324 {
 325         mtx_unlock(&ctx->screen->lock);
 326 }
 327
 328 static inline struct pipe_scissor_state *
 329 fd_context_get_scissor(struct fd_context *ctx)
 330 {
 331         if (ctx->rasterizer && ctx->rasterizer->scissor)
 332                 return &ctx->scissor;
 333         return &ctx->disabled_scissor;
 334 }
 335
 336 static inline bool
 337 fd_supported_prim(struct fd_context *ctx, unsigned prim)
 338 {
 339         return (1 << prim) & ctx->primtype_mask;
 340 }
 341
 342 void fd_context_setup_common_vbos(struct fd_context *ctx);
 343 void fd_context_cleanup_common_vbos(struct fd_context *ctx);
 344
 345 struct pipe_context * fd_context_init(struct fd_context *ctx,
 346                 struct pipe_screen *pscreen, const uint8_t *primtypes,
 347                 void *priv);
 348
 349 void fd_context_destroy(struct pipe_context *pctx);
 350
 351 #endif /* FREEDRENO_CONTEXT_H_ */