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 #include "util/u_vbuf_mgr.h"
  34
  35 #include "r300_defines.h"
  36 #include "r300_screen.h"
  37 #include "r300_winsys.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     /* Name, for debugging. */
  47     const char* name;
  48     /* Opaque state. */
  49     void* state;
  50     /* Emit the state to the context. */
  51     void (*emit)(struct r300_context*, unsigned, void*);
  52     /* Upper bound on number of dwords to emit. */
  53     unsigned size;
  54     /* Whether this atom should be emitted. */
  55     boolean dirty;
  56     /* Whether this atom may be emitted with state == NULL. */
  57     boolean allow_null_state;
  58 };
  59
  60 struct r300_aa_state {
  61     struct r300_surface *dest;
  62
  63     uint32_t aa_config;
  64     uint32_t aaresolve_ctl;
  65 };
  66
  67 struct r300_blend_state {
  68     uint32_t cb[8];
  69     uint32_t cb_no_readwrite[8];
  70 };
  71
  72 struct r300_blend_color_state {
  73     uint32_t cb[3];
  74 };
  75
  76 struct r300_clip_state {
  77     struct pipe_clip_state clip;
  78
  79     uint32_t cb[29];
  80 };
  81
  82 struct r300_dsa_state {
  83     struct pipe_depth_stencil_alpha_state dsa;
  84
  85     /* This is actually a command buffer with named dwords. */
  86     uint32_t cb_begin;
  87     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  88     uint32_t cb_reg_seq;
  89     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  90     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  91     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  92     uint32_t cb_reg;
  93     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  94
  95     /* The second command buffer disables zbuffer reads and writes. */
  96     uint32_t cb_no_readwrite[8];
  97
  98     /* Whether a two-sided stencil is enabled. */
  99     boolean two_sided;
 100     /* Whether a fallback should be used for a two-sided stencil ref value. */
 101     boolean two_sided_stencil_ref;
 102 };
 103
 104 struct r300_hyperz_state {
 105     int flush;
 106     /* This is actually a command buffer with named dwords. */
 107     uint32_t cb_flush_begin;
 108     uint32_t zb_zcache_ctlstat;     /* R300_ZB_CACHE_CNTL */
 109     uint32_t cb_begin;
 110     uint32_t zb_bw_cntl;            /* R300_ZB_BW_CNTL */
 111     uint32_t cb_reg1;
 112     uint32_t zb_depthclearvalue;    /* R300_ZB_DEPTHCLEARVALUE */
 113     uint32_t cb_reg2;
 114     uint32_t sc_hyperz;             /* R300_SC_HYPERZ */
 115     uint32_t cb_reg3;
 116     uint32_t gb_z_peq_config;       /* R300_GB_Z_PEQ_CONFIG: 0x4028 */
 117 };
 118
 119 struct r300_gpu_flush {
 120     uint32_t cb_flush_clean[6];
 121 };
 122
 123 #define RS_STATE_MAIN_SIZE 23
 124
 125 struct r300_rs_state {
 126     /* Original rasterizer state. */
 127     struct pipe_rasterizer_state rs;
 128     /* Draw-specific rasterizer state. */
 129     struct pipe_rasterizer_state rs_draw;
 130
 131     /* Command buffers. */
 132     uint32_t cb_main[RS_STATE_MAIN_SIZE];
 133     uint32_t cb_poly_offset_zb16[5];
 134     uint32_t cb_poly_offset_zb24[5];
 135
 136     /* The index to cb_main where the cull_mode register value resides. */
 137     unsigned cull_mode_index;
 138
 139     /* Whether polygon offset is enabled. */
 140     boolean polygon_offset_enable;
 141
 142     /* This is emitted in the draw function. */
 143     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
 144 };
 145
 146 struct r300_rs_block {
 147     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
 148     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
 149     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
 150     uint32_t gb_enable;
 151
 152     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
 153     uint32_t count; /* R300_RS_COUNT */
 154     uint32_t inst_count; /* R300_RS_INST_COUNT */
 155     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
 156 };
 157
 158 struct r300_sampler_state {
 159     struct pipe_sampler_state state;
 160
 161     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 162     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 163
 164     /* Min/max LOD must be clamped to [0, last_level], thus
 165      * it's dependent on a currently bound texture */
 166     unsigned min_lod, max_lod;
 167 };
 168
 169 struct r300_texture_format_state {
 170     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 171     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 172     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 173     uint32_t tile_config; /* R300_TX_OFFSET (subset thereof) */
 174 };
 175
 176 struct r300_sampler_view {
 177     struct pipe_sampler_view base;
 178
 179     /* Swizzles in the UTIL_FORMAT_SWIZZLE_* representation,
 180      * derived from base. */
 181     unsigned char swizzle[4];
 182
 183     /* Copy of r300_texture::texture_format_state with format-specific bits
 184      * added. */
 185     struct r300_texture_format_state format;
 186
 187     /* The texture cache region for this texture. */
 188     uint32_t texcache_region;
 189 };
 190
 191 struct r300_texture_sampler_state {
 192     struct r300_texture_format_state format;
 193     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 194     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 195     uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 196 };
 197
 198 struct r300_textures_state {
 199     /* Textures. */
 200     struct r300_sampler_view *sampler_views[16];
 201     int sampler_view_count;
 202     /* Sampler states. */
 203     struct r300_sampler_state *sampler_states[16];
 204     int sampler_state_count;
 205
 206     /* This is the merge of the texture and sampler states. */
 207     unsigned count;
 208     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 209     struct r300_texture_sampler_state regs[16];
 210 };
 211
 212 struct r300_vertex_stream_state {
 213     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 214     uint32_t vap_prog_stream_cntl[8];
 215     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 216     uint32_t vap_prog_stream_cntl_ext[8];
 217
 218     unsigned count;
 219 };
 220
 221 struct r300_invariant_state {
 222     uint32_t cb[22];
 223 };
 224
 225 struct r300_vap_invariant_state {
 226     uint32_t cb[9];
 227 };
 228
 229 struct r300_viewport_state {
 230     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 231     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 232     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 233     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 234     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 235     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 236     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 237 };
 238
 239 struct r300_ztop_state {
 240     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 241 };
 242
 243 /* The next several objects are not pure Radeon state; they inherit from
 244  * various Gallium classes. */
 245
 246 struct r300_constant_buffer {
 247     /* Buffer of constants */
 248     uint32_t *ptr;
 249     /* Remapping table. */
 250     unsigned *remap_table;
 251     /* const buffer base */
 252     uint32_t buffer_base;
 253 };
 254
 255 /* Query object.
 256  *
 257  * This is not a subclass of pipe_query because pipe_query is never
 258  * actually fully defined. So, rather than have it as a member, and do
 259  * subclass-style casting, we treat pipe_query as an opaque, and just
 260  * trust that our state tracker does not ever mess up query objects.
 261  */
 262 struct r300_query {
 263     /* The kind of query. Currently only OQ is supported. */
 264     unsigned type;
 265     /* The number of pipes where query results are stored. */
 266     unsigned num_pipes;
 267     /* How many results have been written, in dwords. It's incremented
 268      * after end_query and flush. */
 269     unsigned num_results;
 270     /* if begin has been emitted */
 271     boolean begin_emitted;
 272
 273     /* The buffer where query results are stored. */
 274     struct r300_winsys_bo *buf;
 275     struct r300_winsys_cs_handle *cs_buf;
 276     /* The size of the buffer. */
 277     unsigned buffer_size;
 278     /* The domain of the buffer. */
 279     enum r300_buffer_domain domain;
 280
 281     /* Linked list members. */
 282     struct r300_query* prev;
 283     struct r300_query* next;
 284 };
 285
 286 struct r300_surface {
 287     struct pipe_surface base;
 288
 289     /* Winsys buffer backing the texture. */
 290     struct r300_winsys_bo *buf;
 291     struct r300_winsys_cs_handle *cs_buf;
 292
 293     enum r300_buffer_domain domain;
 294
 295     uint32_t offset;    /* COLOROFFSET or DEPTHOFFSET. */
 296     uint32_t pitch;     /* COLORPITCH or DEPTHPITCH. */
 297     uint32_t pitch_zmask; /* ZMASK_PITCH */
 298     uint32_t pitch_hiz;   /* HIZ_PITCH */
 299     uint32_t format;    /* US_OUT_FMT or ZB_FORMAT. */
 300
 301     /* Parameters dedicated to the CBZB clear. */
 302     uint32_t cbzb_width;            /* Aligned width. */
 303     uint32_t cbzb_height;           /* Half of the height. */
 304     uint32_t cbzb_midpoint_offset;  /* DEPTHOFFSET. */
 305     uint32_t cbzb_pitch;            /* DEPTHPITCH. */
 306     uint32_t cbzb_format;           /* ZB_FORMAT. */
 307
 308     /* Whether the CBZB clear is allowed on the surface. */
 309     boolean cbzb_allowed;
 310 };
 311
 312 struct r300_texture_desc {
 313     /* Width, height, and depth.
 314      * Most of the time, these are equal to pipe_texture::width0, height0,
 315      * and depth0. However, NPOT 3D textures must have dimensions aligned
 316      * to POT, and this is the only case when these variables differ from
 317      * pipe_texture. */
 318     unsigned width0, height0, depth0;
 319
 320     /* Buffer tiling.
 321      * Macrotiling is specified per-level because small mipmaps cannot
 322      * be macrotiled. */
 323     enum r300_buffer_tiling microtile;
 324     enum r300_buffer_tiling macrotile[R300_MAX_TEXTURE_LEVELS];
 325
 326     /* Offsets into the buffer. */
 327     unsigned offset_in_bytes[R300_MAX_TEXTURE_LEVELS];
 328
 329     /* Strides for each mip-level. */
 330     unsigned stride_in_pixels[R300_MAX_TEXTURE_LEVELS];
 331     unsigned stride_in_bytes[R300_MAX_TEXTURE_LEVELS];
 332
 333     /* Size of one zslice or face or 2D image based on the texture target. */
 334     unsigned layer_size_in_bytes[R300_MAX_TEXTURE_LEVELS];
 335
 336     /* Total size of this texture, in bytes,
 337      * derived from the texture properties. */
 338     unsigned size_in_bytes;
 339
 340     /* Total size of the buffer backing this texture, in bytes.
 341      * It must be >= size. */
 342     unsigned buffer_size_in_bytes;
 343
 344     /**
 345      * If non-zero, override the natural texture layout with
 346      * a custom stride (in bytes).
 347      *
 348      * \note Mipmapping fails for textures with a non-natural layout!
 349      *
 350      * \sa r300_texture_get_stride
 351      */
 352     unsigned stride_in_bytes_override;
 353
 354     /* Whether this texture has non-power-of-two dimensions.
 355      * It can be either a regular texture or a rectangle one. */
 356     boolean is_npot;
 357
 358     /* This flag says that hardware must use the stride for addressing
 359      * instead of the width. */
 360     boolean uses_stride_addressing;
 361
 362     /* Whether CBZB fast color clear is allowed on the miplevel. */
 363     boolean cbzb_allowed[R300_MAX_TEXTURE_LEVELS];
 364
 365     /* Zbuffer compression info for each miplevel. */
 366     boolean zcomp8x8[R300_MAX_TEXTURE_LEVELS];
 367     /* If zero, then disable Z compression/HiZ. */
 368     unsigned zmask_dwords[R300_MAX_TEXTURE_LEVELS];
 369     unsigned hiz_dwords[R300_MAX_TEXTURE_LEVELS];
 370     /* Zmask/HiZ strides for each miplevel. */
 371     unsigned zmask_stride_in_pixels[R300_MAX_TEXTURE_LEVELS];
 372     unsigned hiz_stride_in_pixels[R300_MAX_TEXTURE_LEVELS];
 373 };
 374
 375 struct r300_resource
 376 {
 377     struct u_vbuf_resource b;
 378
 379     /* Winsys buffer backing this resource. */
 380     struct r300_winsys_bo *buf;
 381     struct r300_winsys_cs_handle *cs_buf;
 382     enum r300_buffer_domain domain;
 383     unsigned buf_size;
 384
 385     /* Constant buffers are in user memory. */
 386     uint8_t *constant_buffer;
 387
 388     /* Texture description (addressing, layout, special features). */
 389     struct r300_texture_desc tex;
 390
 391     /* Registers carrying texture format data. */
 392     /* Only format-independent bits should be filled in. */
 393     struct r300_texture_format_state tx_format;
 394
 395     /* Where the texture starts in the buffer. */
 396     unsigned tex_offset;
 397
 398     /* This is the level tiling flags were last time set for.
 399      * It's used to prevent redundant tiling-flags changes from happening.*/
 400     unsigned surface_level;
 401 };
 402
 403 struct r300_vertex_element_state {
 404     unsigned count;
 405     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 406     unsigned format_size[PIPE_MAX_ATTRIBS];
 407
 408     struct u_vbuf_mgr_elements *vmgr_elements;
 409
 410     /* The size of the vertex, in dwords. */
 411     unsigned vertex_size_dwords;
 412
 413     struct r300_vertex_stream_state vertex_stream;
 414 };
 415
 416 enum r300_hiz_func {
 417     HIZ_FUNC_NONE,
 418
 419     /* The function, when determined, is set in stone
 420      * until the next HiZ clear. */
 421
 422     /* MAX is written to the HiZ buffer.
 423      * Used for LESS, LEQUAL. */
 424     HIZ_FUNC_MAX,
 425
 426     /* MIN is written to the HiZ buffer.
 427      * Used for GREATER, GEQUAL. */
 428     HIZ_FUNC_MIN,
 429 };
 430
 431 struct r300_context {
 432     /* Parent class */
 433     struct pipe_context context;
 434
 435     /* The interface to the windowing system, etc. */
 436     struct r300_winsys_screen *rws;
 437     /* The command stream. */
 438     struct r300_winsys_cs *cs;
 439     /* Screen. */
 440     struct r300_screen *screen;
 441
 442     /* Draw module. Used mostly for SW TCL. */
 443     struct draw_context* draw;
 444     /* Vertex buffer for SW TCL. */
 445     struct pipe_resource* vbo;
 446     /* Offset and size into the SW TCL VBO. */
 447     size_t draw_vbo_offset;
 448     size_t draw_vbo_size;
 449     /* Whether the VBO must not be flushed. */
 450     boolean draw_vbo_locked;
 451     boolean draw_first_emitted;
 452
 453     /* Accelerated blit support. */
 454     struct blitter_context* blitter;
 455     /* Stencil two-sided reference value fallback. */
 456     struct r300_stencilref_context *stencilref_fallback;
 457
 458     /* The KIL opcode needs the first texture unit to be enabled
 459      * on r3xx-r4xx. In order to calm down the CS checker, we bind this
 460      * dummy texture there. */
 461     struct r300_sampler_view *texkill_sampler;
 462
 463     /* When no vertex buffer is set, this one is used instead to prevent
 464      * hardlocks. */
 465     struct pipe_resource *dummy_vb;
 466
 467     /* The currently active query. */
 468     struct r300_query *query_current;
 469     /* The saved query for blitter operations. */
 470     struct r300_query *blitter_saved_query;
 471     /* Query list. */
 472     struct r300_query query_list;
 473
 474     /* Various CSO state objects. */
 475
 476     /* Each atom is emitted in the order it appears here, which can affect
 477      * performance and stability if not handled with care. */
 478     /* GPU flush. */
 479     struct r300_atom gpu_flush;
 480     /* Anti-aliasing (MSAA) state. */
 481     struct r300_atom aa_state;
 482     /* Framebuffer state. */
 483     struct r300_atom fb_state;
 484     /* HyperZ state (various SC/ZB bits). */
 485     struct r300_atom hyperz_state;
 486     /* ZTOP state. */
 487     struct r300_atom ztop_state;
 488     /* Depth, stencil, and alpha state. */
 489     struct r300_atom dsa_state;
 490     /* Blend state. */
 491     struct r300_atom blend_state;
 492     /* Blend color state. */
 493     struct r300_atom blend_color_state;
 494     /* Scissor state. */
 495     struct r300_atom scissor_state;
 496     /* Invariant state. This must be emitted to get the engine started. */
 497     struct r300_atom invariant_state;
 498     /* Viewport state. */
 499     struct r300_atom viewport_state;
 500     /* PVS flush. */
 501     struct r300_atom pvs_flush;
 502     /* VAP invariant state. */
 503     struct r300_atom vap_invariant_state;
 504     /* Vertex stream formatting state. */
 505     struct r300_atom vertex_stream_state;
 506     /* Vertex shader. */
 507     struct r300_atom vs_state;
 508     /* User clip planes. */
 509     struct r300_atom clip_state;
 510     /* RS block state + VAP (vertex shader) output mapping state. */
 511     struct r300_atom rs_block_state;
 512     /* Rasterizer state. */
 513     struct r300_atom rs_state;
 514     /* Framebuffer state (pipelined regs). */
 515     struct r300_atom fb_state_pipelined;
 516     /* Fragment shader. */
 517     struct r300_atom fs;
 518     /* Fragment shader RC_CONSTANT_STATE variables. */
 519     struct r300_atom fs_rc_constant_state;
 520     /* Fragment shader constant buffer. */
 521     struct r300_atom fs_constants;
 522     /* Vertex shader constant buffer. */
 523     struct r300_atom vs_constants;
 524     /* Texture cache invalidate. */
 525     struct r300_atom texture_cache_inval;
 526     /* Textures state. */
 527     struct r300_atom textures_state;
 528     /* HiZ clear */
 529     struct r300_atom hiz_clear;
 530     /* zmask clear */
 531     struct r300_atom zmask_clear;
 532     /* Occlusion query. */
 533     struct r300_atom query_start;
 534
 535     /* The pointers to the first and the last atom. */
 536     struct r300_atom *first_dirty, *last_dirty;
 537
 538     /* Vertex elements for Gallium. */
 539     struct r300_vertex_element_state *velems;
 540
 541     struct pipe_index_buffer index_buffer;
 542
 543     /* Vertex info for Draw. */
 544     struct vertex_info vertex_info;
 545
 546     struct pipe_stencil_ref stencil_ref;
 547     struct pipe_viewport_state viewport;
 548
 549     /* Stream locations for SWTCL. */
 550     int stream_loc_notcl[16];
 551
 552     /* Flag indicating whether or not the HW is dirty. */
 553     uint32_t dirty_hw;
 554     /* Whether polygon offset is enabled. */
 555     boolean polygon_offset_enabled;
 556     /* Z buffer bit depth. */
 557     uint32_t zbuffer_bpp;
 558     /* Whether rendering is conditional and should be skipped. */
 559     boolean skip_rendering;
 560     /* Point sprites texcoord index,  1 bit per texcoord */
 561     int sprite_coord_enable;
 562     /* Whether two-sided color selection is enabled (AKA light_twoside). */
 563     boolean two_sided_color;
 564     /* Whether fast color clear is enabled. */
 565     boolean cbzb_clear;
 566     /* Whether ZMASK is enabled. */
 567     boolean zmask_in_use;
 568     /* Whether ZMASK is being decompressed. */
 569     boolean zmask_decompress;
 570     /* Whether ZMASK/HIZ is locked, i.e. should be disabled and cannot be taken over. */
 571     boolean hyperz_locked;
 572     /* The zbuffer the ZMASK of which is locked. */
 573     struct pipe_surface *locked_zbuffer;
 574     /* Whether HIZ is enabled. */
 575     boolean hiz_in_use;
 576     /* HiZ function. Can be either MIN or MAX. */
 577     enum r300_hiz_func hiz_func;
 578     /* HiZ clear value. */
 579     uint32_t hiz_clear_value;
 580
 581     void *dsa_decompress_zmask;
 582
 583     struct u_vbuf_mgr *vbuf_mgr;
 584
 585     struct util_slab_mempool pool_transfers;
 586
 587     /* Stat counter. */
 588     uint64_t flush_counter;
 589
 590     /* const tracking for VS */
 591     int vs_const_base;
 592
 593     /* Vertex array state info */
 594     boolean vertex_arrays_dirty;
 595     boolean vertex_arrays_indexed;
 596     int vertex_arrays_offset;
 597 };
 598
 599 #define foreach_atom(r300, atom) \
 600     for (atom = &r300->gpu_flush; atom != (&r300->query_start)+1; atom++)
 601
 602 #define foreach_dirty_atom(r300, atom) \
 603     for (atom = r300->first_dirty; atom != r300->last_dirty; atom++)
 604
 605 /* Convenience cast wrappers. */
 606 static INLINE struct r300_query* r300_query(struct pipe_query* q)
 607 {
 608     return (struct r300_query*)q;
 609 }
 610
 611 static INLINE struct r300_surface* r300_surface(struct pipe_surface* surf)
 612 {
 613     return (struct r300_surface*)surf;
 614 }
 615
 616 static INLINE struct r300_resource* r300_resource(struct pipe_resource* tex)
 617 {
 618     return (struct r300_resource*)tex;
 619 }
 620
 621 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 622 {
 623     return (struct r300_context*)context;
 624 }
 625
 626 static INLINE struct r300_fragment_shader *r300_fs(struct r300_context *r300)
 627 {
 628     return (struct r300_fragment_shader*)r300->fs.state;
 629 }
 630
 631 static INLINE void r300_mark_atom_dirty(struct r300_context *r300,
 632                                         struct r300_atom *atom)
 633 {
 634     atom->dirty = TRUE;
 635
 636     if (!r300->first_dirty) {
 637         r300->first_dirty = atom;
 638         r300->last_dirty = atom+1;
 639     } else {
 640         if (atom < r300->first_dirty)
 641             r300->first_dirty = atom;
 642         else if (atom+1 > r300->last_dirty)
 643             r300->last_dirty = atom+1;
 644     }
 645 }
 646
 647 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 648                                          void *priv);
 649
 650 void r300_flush_cb(void *data);
 651
 652 /* Context initialization. */
 653 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 654 void r300_init_blit_functions(struct r300_context *r300);
 655 void r300_init_flush_functions(struct r300_context* r300);
 656 void r300_init_query_functions(struct r300_context* r300);
 657 void r300_init_render_functions(struct r300_context *r300);
 658 void r300_init_state_functions(struct r300_context* r300);
 659 void r300_init_resource_functions(struct r300_context* r300);
 660
 661 /* r300_blit.c */
 662 void r300_decompress_zmask(struct r300_context *r300);
 663 void r300_decompress_zmask_locked_unsafe(struct r300_context *r300);
 664 void r300_decompress_zmask_locked(struct r300_context *r300);
 665
 666 /* r300_hyperz.c */
 667 void r300_update_hyperz_state(struct r300_context* r300);
 668
 669 /* r300_query.c */
 670 void r300_resume_query(struct r300_context *r300,
 671                        struct r300_query *query);
 672 void r300_stop_query(struct r300_context *r300);
 673
 674 /* r300_render_translate.c */
 675 void r300_translate_index_buffer(struct r300_context *r300,
 676                                  struct pipe_resource **index_buffer,
 677                                  unsigned *index_size, unsigned index_offset,
 678                                  unsigned *start, unsigned count);
 679
 680 /* r300_render_stencilref.c */
 681 void r300_plug_in_stencil_ref_fallback(struct r300_context *r300);
 682
 683 /* r300_render.c */
 684 void r300_draw_flush_vbuf(struct r300_context *r300);
 685 void r500_emit_index_bias(struct r300_context *r300, int index_bias);
 686
 687 /* r300_state.c */
 688 enum r300_fb_state_change {
 689     R300_CHANGED_FB_STATE = 0,
 690     R300_CHANGED_HYPERZ_FLAG,
 691     R300_CHANGED_MULTIWRITE
 692 };
 693
 694 void r300_mark_fb_state_dirty(struct r300_context *r300,
 695                               enum r300_fb_state_change change);
 696 void r300_mark_fs_code_dirty(struct r300_context *r300);
 697
 698 /* r300_state_derived.c */
 699 void r300_update_derived_state(struct r300_context* r300);
 700
 701 /* r300_debug.c */
 702 void r500_dump_rs_block(struct r300_rs_block *rs);
 703
 704
 705 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 706 {
 707     return SCREEN_DBG_ON(ctx->screen, flags);
 708 }
 709
 710 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 711                        const char * fmt, ...)
 712 {
 713     if (CTX_DBG_ON(ctx, flags)) {
 714         va_list va;
 715         va_start(va, fmt);
 716         vfprintf(stderr, fmt, va);
 717         va_end(va);
 718     }
 719 }
 720
 721 #define DBG_ON  CTX_DBG_ON
 722 #define DBG     CTX_DBG
 723
 724 #endif /* R300_CONTEXT_H */