src/gallium/drivers/r300/r300_context.h

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * 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 AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #ifndef R300_CONTEXT_H
  24 #define R300_CONTEXT_H
  25
  26 #include "draw/draw_vertex.h"
  27
  28 #include "util/u_blitter.h"
  29
  30 #include "pipe/p_context.h"
  31 #include "util/u_inlines.h"
  32 #include "util/u_transfer.h"
  33
  34 #include "translate/translate_cache.h"
  35
  36 #include "r300_defines.h"
  37 #include "r300_screen.h"
  38
  39 struct u_upload_mgr;
  40 struct r300_context;
  41 struct r300_fragment_shader;
  42 struct r300_vertex_shader;
  43 struct r300_stencilref_context;
  44
  45 struct r300_atom {
  46     /* List pointers. */
  47     struct r300_atom *prev, *next;
  48     /* Name, for debugging. */
  49     const char* name;
  50     /* Stat counter. */
  51     uint64_t counter;
  52     /* Opaque state. */
  53     void* state;
  54     /* Emit the state to the context. */
  55     void (*emit)(struct r300_context*, unsigned, void*);
  56     /* Upper bound on number of dwords to emit. */
  57     unsigned size;
  58     /* Whether this atom should be emitted. */
  59     boolean dirty;
  60     /* Whether this atom may be emitted with state == NULL. */
  61     boolean allow_null_state;
  62 };
  63
  64 struct r300_blend_state {
  65     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  66     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  67     uint32_t color_channel_mask;  /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
  68     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  69     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  70 };
  71
  72 struct r300_blend_color_state {
  73     /* RV515 and earlier */
  74     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  75     /* R520 and newer */
  76     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  77     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  78 };
  79
  80 struct r300_dsa_state {
  81     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  82     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  83     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  84     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  85     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  86     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  87
  88     /* Whether a two-sided stencil is enabled. */
  89     boolean two_sided;
  90     /* Whether a fallback should be used for a two-sided stencil ref value. */
  91     boolean two_sided_stencil_ref;
  92 };
  93
  94 struct r300_rs_state {
  95     /* Original rasterizer state. */
  96     struct pipe_rasterizer_state rs;
  97     /* Draw-specific rasterizer state. */
  98     struct pipe_rasterizer_state rs_draw;
  99
 100     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
 101     uint32_t antialiasing_config;   /* R300_GB_AA_CONFIG: 0x4020 */
 102     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
 103     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
 104     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
 105     float depth_scale;            /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
 106                                   /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
 107     float depth_offset;           /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
 108                                   /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
 109     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
 110     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
 111     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
 112     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
 113     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
 114     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
 115     uint32_t clip_rule;             /* R300_SC_CLIP_RULE: 0x43D0 */
 116
 117     /* Specifies top of Raster pipe specific enable controls,
 118      * i.e. texture coordinates stuffing for points, lines, triangles */
 119     uint32_t stuffing_enable;       /* R300_GB_ENABLE: 0x4008 */
 120
 121     /* Point sprites texture coordinates, 0: lower left, 1: upper right */
 122     float point_texcoord_left;      /* R300_GA_POINT_S0: 0x4200 */
 123     float point_texcoord_bottom;    /* R300_GA_POINT_T0: 0x4204 */
 124     float point_texcoord_right;     /* R300_GA_POINT_S1: 0x4208 */
 125     float point_texcoord_top;       /* R300_GA_POINT_T1: 0x420c */
 126 };
 127
 128 struct r300_rs_block {
 129     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
 130     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
 131     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
 132
 133     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
 134     uint32_t count; /* R300_RS_COUNT */
 135     uint32_t inst_count; /* R300_RS_INST_COUNT */
 136     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
 137 };
 138
 139 struct r300_sampler_state {
 140     struct pipe_sampler_state state;
 141
 142     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 143     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 144     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 145
 146     /* Min/max LOD must be clamped to [0, last_level], thus
 147      * it's dependent on a currently bound texture */
 148     unsigned min_lod, max_lod;
 149 };
 150
 151 struct r300_texture_format_state {
 152     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 153     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 154     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 155     uint32_t tile_config; /* R300_TX_OFFSET (subset thereof) */
 156 };
 157
 158 struct r300_sampler_view {
 159     struct pipe_sampler_view base;
 160
 161     /* Swizzles in the UTIL_FORMAT_SWIZZLE_* representation,
 162      * derived from base. */
 163     unsigned char swizzle[4];
 164
 165     /* Copy of r300_texture::texture_format_state with format-specific bits
 166      * added. */
 167     struct r300_texture_format_state format;
 168 };
 169
 170 struct r300_texture_fb_state {
 171     /* Colorbuffer. */
 172     uint32_t colorpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_COLORPITCH[0-3]*/
 173     uint32_t us_out_fmt; /* R300_US_OUT_FMT[0-3] */
 174
 175     /* Zbuffer. */
 176     uint32_t depthpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_DEPTHPITCH */
 177     uint32_t zb_format; /* R300_ZB_FORMAT */
 178 };
 179
 180 struct r300_texture_sampler_state {
 181     struct r300_texture_format_state format;
 182     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 183     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 184     uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 185 };
 186
 187 struct r300_textures_state {
 188     /* Textures. */
 189     struct r300_sampler_view *sampler_views[16];
 190     int sampler_view_count;
 191     /* Sampler states. */
 192     struct r300_sampler_state *sampler_states[16];
 193     int sampler_state_count;
 194
 195     /* This is the merge of the texture and sampler states. */
 196     unsigned count;
 197     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 198     struct r300_texture_sampler_state regs[16];
 199 };
 200
 201 struct r300_vertex_stream_state {
 202     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 203     uint32_t vap_prog_stream_cntl[8];
 204     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 205     uint32_t vap_prog_stream_cntl_ext[8];
 206
 207     unsigned count;
 208 };
 209
 210 struct r300_viewport_state {
 211     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 212     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 213     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 214     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 215     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 216     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 217     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 218 };
 219
 220 struct r300_ztop_state {
 221     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 222 };
 223
 224 /* The next several objects are not pure Radeon state; they inherit from
 225  * various Gallium classes. */
 226
 227 struct r300_constant_buffer {
 228     /* Buffer of constants */
 229     float constants[256][4];
 230     /* Total number of constants */
 231     unsigned count;
 232 };
 233
 234 /* Query object.
 235  *
 236  * This is not a subclass of pipe_query because pipe_query is never
 237  * actually fully defined. So, rather than have it as a member, and do
 238  * subclass-style casting, we treat pipe_query as an opaque, and just
 239  * trust that our state tracker does not ever mess up query objects.
 240  */
 241 struct r300_query {
 242     /* The kind of query. Currently only OQ is supported. */
 243     unsigned type;
 244     /* The current count of this query. Required to be at least 32 bits. */
 245     unsigned int count;
 246     /* The offset of this query into the query buffer, in bytes. */
 247     unsigned offset;
 248     /* if we've flushed the query */
 249     boolean flushed;
 250     /* if begin has been emitted */
 251     boolean begin_emitted;
 252     /* Linked list members. */
 253     struct r300_query* prev;
 254     struct r300_query* next;
 255 };
 256
 257 /* Fence object.
 258  *
 259  * This is a fake fence. Instead of syncing with the fence, we sync
 260  * with the context, which is inefficient but compliant.
 261  *
 262  * This is not a subclass of pipe_fence_handle because pipe_fence_handle is
 263  * never actually fully defined. So, rather than have it as a member, and do
 264  * subclass-style casting, we treat pipe_fence_handle as an opaque, and just
 265  * trust that our state tracker does not ever mess up fence objects.
 266  */
 267 struct r300_fence {
 268     struct pipe_reference reference;
 269     struct r300_context *ctx;
 270     boolean signalled;
 271 };
 272
 273 struct r300_texture {
 274     /* Parent class */
 275     struct u_resource b;
 276
 277     enum r300_buffer_domain domain;
 278
 279     /* Offsets into the buffer. */
 280     unsigned offset[R300_MAX_TEXTURE_LEVELS];
 281
 282     /* A pitch for each mip-level */
 283     unsigned pitch[R300_MAX_TEXTURE_LEVELS];
 284
 285     /* A pitch multiplied by blockwidth as hardware wants
 286      * the number of pixels instead of the number of blocks. */
 287     unsigned hwpitch[R300_MAX_TEXTURE_LEVELS];
 288
 289     /* Size of one zslice or face based on the texture target */
 290     unsigned layer_size[R300_MAX_TEXTURE_LEVELS];
 291
 292     /* Whether the mipmap level is macrotiled. */
 293     enum r300_buffer_tiling mip_macrotile[R300_MAX_TEXTURE_LEVELS];
 294
 295     /**
 296      * If non-zero, override the natural texture layout with
 297      * a custom stride (in bytes).
 298      *
 299      * \note Mipmapping fails for textures with a non-natural layout!
 300      *
 301      * \sa r300_texture_get_stride
 302      */
 303     unsigned stride_override;
 304
 305     /* Total size of this texture, in bytes. */
 306     unsigned size;
 307
 308     /* Whether this texture has non-power-of-two dimensions
 309      * or a user-specified pitch.
 310      * It can be either a regular texture or a rectangle one.
 311      */
 312     boolean uses_pitch;
 313
 314     /* Pipe buffer backing this texture. */
 315     struct r300_winsys_buffer *buffer;
 316
 317     /* Registers carrying texture format data. */
 318     /* Only format-independent bits should be filled in. */
 319     struct r300_texture_format_state tx_format;
 320     /* All bits should be filled in. */
 321     struct r300_texture_fb_state fb_state;
 322
 323     /* Buffer tiling */
 324     enum r300_buffer_tiling microtile, macrotile;
 325 };
 326
 327 struct r300_vertex_element_state {
 328     unsigned count;
 329     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 330
 331     /* If (velem[i].src_format != hw_format[i]), the vertex buffer
 332      * referenced by this vertex element cannot be used for rendering and
 333      * its vertex data must be translated to hw_format[i]. */
 334     enum pipe_format hw_format[PIPE_MAX_ATTRIBS];
 335     unsigned hw_format_size[PIPE_MAX_ATTRIBS];
 336
 337     /* This might mean two things:
 338      * - src_format != hw_format, as discussed above.
 339      * - src_offset % 4 != 0. */
 340     boolean incompatible_layout;
 341
 342     struct r300_vertex_stream_state vertex_stream;
 343 };
 344
 345 struct r300_translate_context {
 346     /* Translate cache for incompatible vertex offset/stride/format fallback. */
 347     struct translate_cache *translate_cache;
 348
 349     /* The vertex buffer slot containing the translated buffer. */
 350     unsigned vb_slot;
 351
 352     /* Saved and new vertex element state. */
 353     void *saved_velems, *new_velems;
 354 };
 355
 356 struct r300_context {
 357     /* Parent class */
 358     struct pipe_context context;
 359
 360     /* The interface to the windowing system, etc. */
 361     struct r300_winsys_screen *rws;
 362     /* Screen. */
 363     struct r300_screen *screen;
 364     /* Draw module. Used mostly for SW TCL. */
 365     struct draw_context* draw;
 366     /* Accelerated blit support. */
 367     struct blitter_context* blitter;
 368     /* Stencil two-sided reference value fallback. */
 369     struct r300_stencilref_context *stencilref_fallback;
 370     /* For translating vertex buffers having incompatible vertex layout. */
 371     struct r300_translate_context tran;
 372
 373     /* Vertex buffer for rendering. */
 374     struct pipe_resource* vbo;
 375     /* Offset into the VBO. */
 376     size_t vbo_offset;
 377
 378     /* Occlusion query buffer. */
 379     struct pipe_resource* oqbo;
 380     /* Query list. */
 381     struct r300_query *query_current;
 382     struct r300_query query_list;
 383
 384     /* Various CSO state objects. */
 385     /* Beginning of atom list. */
 386     struct r300_atom atom_list;
 387     /* Blend state. */
 388     struct r300_atom blend_state;
 389     /* Blend color state. */
 390     struct r300_atom blend_color_state;
 391     /* User clip planes. */
 392     struct r300_atom clip_state;
 393     /* Depth, stencil, and alpha state. */
 394     struct r300_atom dsa_state;
 395     /* Fragment shader. */
 396     struct r300_atom fs;
 397     /* Fragment shader RC_CONSTANT_STATE variables. */
 398     struct r300_atom fs_rc_constant_state;
 399     /* Fragment shader constant buffer. */
 400     struct r300_atom fs_constants;
 401     /* Framebuffer state. */
 402     struct r300_atom fb_state;
 403     /* Occlusion query. */
 404     struct r300_atom query_start;
 405     /* Rasterizer state. */
 406     struct r300_atom rs_state;
 407     /* RS block state + VAP (vertex shader) output mapping state. */
 408     struct r300_atom rs_block_state;
 409     /* Scissor state. */
 410     struct r300_atom scissor_state;
 411     /* Textures state. */
 412     struct r300_atom textures_state;
 413     /* Vertex stream formatting state. */
 414     struct r300_atom vertex_stream_state;
 415     /* Vertex shader. */
 416     struct r300_atom vs_state;
 417     /* Vertex shader constant buffer. */
 418     struct r300_atom vs_constants;
 419     /* Viewport state. */
 420     struct r300_atom viewport_state;
 421     /* ZTOP state. */
 422     struct r300_atom ztop_state;
 423     /* PVS flush. */
 424     struct r300_atom pvs_flush;
 425     /* Texture cache invalidate. */
 426     struct r300_atom texture_cache_inval;
 427
 428     /* Invariant state. This must be emitted to get the engine started. */
 429     struct r300_atom invariant_state;
 430
 431     /* Vertex buffers for Gallium. */
 432     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 433     int vertex_buffer_count;
 434     int vertex_buffer_max_index;
 435     /* Vertex elements for Gallium. */
 436     struct r300_vertex_element_state *velems;
 437     bool any_user_vbs;
 438
 439     /* Vertex info for Draw. */
 440     struct vertex_info vertex_info;
 441
 442     struct pipe_stencil_ref stencil_ref;
 443
 444     struct pipe_clip_state clip;
 445
 446     struct pipe_viewport_state viewport;
 447
 448     /* Stream locations for SWTCL. */
 449     int stream_loc_notcl[16];
 450
 451     /* Flag indicating whether or not the HW is dirty. */
 452     uint32_t dirty_hw;
 453     /* Whether polygon offset is enabled. */
 454     boolean polygon_offset_enabled;
 455     /* Z buffer bit depth. */
 456     uint32_t zbuffer_bpp;
 457     /* Whether rendering is conditional and should be skipped. */
 458     boolean skip_rendering;
 459     /* Point sprites texcoord index,  1 bit per texcoord */
 460     int sprite_coord_enable;
 461     /* Whether two-sided color selection is enabled (AKA light_twoside). */
 462     boolean two_sided_color;
 463     /* Incompatible vertex buffer layout? (misaligned stride or buffer_offset) */
 464     boolean incompatible_vb_layout;
 465
 466     /* upload managers */
 467     struct u_upload_mgr *upload_vb;
 468     struct u_upload_mgr *upload_ib;
 469
 470     /* Stat counter. */
 471     uint64_t flush_counter;
 472 };
 473
 474 /* Convenience cast wrappers. */
 475 static INLINE struct r300_query* r300_query(struct pipe_query* q)
 476 {
 477     return (struct r300_query*)q;
 478 }
 479
 480 static INLINE struct r300_texture* r300_texture(struct pipe_resource* tex)
 481 {
 482     return (struct r300_texture*)tex;
 483 }
 484
 485 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 486 {
 487     return (struct r300_context*)context;
 488 }
 489
 490 static INLINE struct r300_fragment_shader *r300_fs(struct r300_context *r300)
 491 {
 492     return (struct r300_fragment_shader*)r300->fs.state;
 493 }
 494
 495 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 496                                          void *priv);
 497
 498 boolean r300_check_cs(struct r300_context *r300, unsigned size);
 499 void r300_finish(struct r300_context *r300);
 500
 501 /* Context initialization. */
 502 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 503 void r300_init_blit_functions(struct r300_context *r300);
 504 void r300_init_flush_functions(struct r300_context* r300);
 505 void r300_init_query_functions(struct r300_context* r300);
 506 void r300_init_render_functions(struct r300_context *r300);
 507 void r300_init_state_functions(struct r300_context* r300);
 508 void r300_init_resource_functions(struct r300_context* r300);
 509
 510 /* r300_render_translate.c */
 511 void r300_begin_vertex_translate(struct r300_context *r300);
 512 void r300_end_vertex_translate(struct r300_context *r300);
 513 void r300_translate_index_buffer(struct r300_context *r300,
 514                                  struct pipe_resource **index_buffer,
 515                                  unsigned *index_size, unsigned index_offset,
 516                                  unsigned *start, unsigned count);
 517
 518 /* r300_render_stencilref.c */
 519 void r300_plug_in_stencil_ref_fallback(struct r300_context *r300);
 520
 521 /* r300_state.c */
 522 void r300_mark_fs_code_dirty(struct r300_context *r300);
 523
 524 /* r300_debug.c */
 525 void r500_dump_rs_block(struct r300_rs_block *rs);
 526
 527
 528 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 529 {
 530     return SCREEN_DBG_ON(ctx->screen, flags);
 531 }
 532
 533 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 534                        const char * fmt, ...)
 535 {
 536     if (CTX_DBG_ON(ctx, flags)) {
 537         va_list va;
 538         va_start(va, fmt);
 539         vfprintf(stderr, fmt, va);
 540         va_end(va);
 541     }
 542 }
 543
 544 #define DBG_ON  CTX_DBG_ON
 545 #define DBG     CTX_DBG
 546
 547 #endif /* R300_CONTEXT_H */