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_aa_state {
  65     struct r300_surface *dest;
  66
  67     uint32_t aa_config;
  68     uint32_t aaresolve_ctl;
  69 };
  70
  71 struct r300_blend_state {
  72     uint32_t cb[8];
  73     uint32_t cb_no_readwrite[8];
  74 };
  75
  76 struct r300_blend_color_state {
  77     uint32_t cb[3];
  78 };
  79
  80 struct r300_clip_state {
  81     struct pipe_clip_state clip;
  82
  83     uint32_t cb[29];
  84 };
  85
  86 struct r300_dsa_state {
  87     struct pipe_depth_stencil_alpha_state dsa;
  88
  89     /* This is actually a command buffer with named dwords. */
  90     uint32_t cb_begin;
  91     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  92     uint32_t cb_reg_seq;
  93     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  94     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  95     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  96     uint32_t cb_reg;
  97     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  98
  99     /* The second command buffer disables zbuffer reads and writes. */
 100     uint32_t cb_no_readwrite[8];
 101
 102     /* Whether a two-sided stencil is enabled. */
 103     boolean two_sided;
 104     /* Whether a fallback should be used for a two-sided stencil ref value. */
 105     boolean two_sided_stencil_ref;
 106 };
 107
 108 struct r300_gpu_flush {
 109     uint32_t cb_flush_clean[6];
 110 };
 111
 112 struct r300_rs_state {
 113     /* Original rasterizer state. */
 114     struct pipe_rasterizer_state rs;
 115     /* Draw-specific rasterizer state. */
 116     struct pipe_rasterizer_state rs_draw;
 117
 118     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
 119     uint32_t multisample_position_0;/* R300_GB_MSPOS0: 0x4010 */
 120     uint32_t multisample_position_1;/* R300_GB_MSPOS1: 0x4014 */
 121     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
 122     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
 123     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
 124     float depth_scale;            /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
 125                                   /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
 126     float depth_offset;           /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
 127                                   /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
 128     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
 129     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
 130     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
 131     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
 132     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
 133     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
 134     uint32_t clip_rule;             /* R300_SC_CLIP_RULE: 0x43D0 */
 135
 136     /* Specifies top of Raster pipe specific enable controls,
 137      * i.e. texture coordinates stuffing for points, lines, triangles */
 138     uint32_t stuffing_enable;       /* R300_GB_ENABLE: 0x4008 */
 139
 140     /* Point sprites texture coordinates, 0: lower left, 1: upper right */
 141     float point_texcoord_left;      /* R300_GA_POINT_S0: 0x4200 */
 142     float point_texcoord_bottom;    /* R300_GA_POINT_T0: 0x4204 */
 143     float point_texcoord_right;     /* R300_GA_POINT_S1: 0x4208 */
 144     float point_texcoord_top;       /* R300_GA_POINT_T1: 0x420c */
 145 };
 146
 147 struct r300_rs_block {
 148     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
 149     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
 150     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
 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     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 164
 165     /* Min/max LOD must be clamped to [0, last_level], thus
 166      * it's dependent on a currently bound texture */
 167     unsigned min_lod, max_lod;
 168 };
 169
 170 struct r300_texture_format_state {
 171     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 172     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 173     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 174     uint32_t tile_config; /* R300_TX_OFFSET (subset thereof) */
 175 };
 176
 177 struct r300_sampler_view {
 178     struct pipe_sampler_view base;
 179
 180     /* Swizzles in the UTIL_FORMAT_SWIZZLE_* representation,
 181      * derived from base. */
 182     unsigned char swizzle[4];
 183
 184     /* Copy of r300_texture::texture_format_state with format-specific bits
 185      * added. */
 186     struct r300_texture_format_state format;
 187
 188     /* The texture cache region for this texture. */
 189     uint32_t texcache_region;
 190 };
 191
 192 struct r300_texture_fb_state {
 193     uint32_t pitch[R300_MAX_TEXTURE_LEVELS]; /* COLORPITCH or DEPTHPITCH. */
 194     uint32_t format; /* US_OUT_FMT or R300_ZB_FORMAT */
 195 };
 196
 197 struct r300_texture_sampler_state {
 198     struct r300_texture_format_state format;
 199     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 200     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 201     uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 202 };
 203
 204 struct r300_textures_state {
 205     /* Textures. */
 206     struct r300_sampler_view *sampler_views[16];
 207     int sampler_view_count;
 208     /* Sampler states. */
 209     struct r300_sampler_state *sampler_states[16];
 210     int sampler_state_count;
 211
 212     /* This is the merge of the texture and sampler states. */
 213     unsigned count;
 214     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 215     struct r300_texture_sampler_state regs[16];
 216 };
 217
 218 struct r300_vertex_stream_state {
 219     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 220     uint32_t vap_prog_stream_cntl[8];
 221     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 222     uint32_t vap_prog_stream_cntl_ext[8];
 223
 224     unsigned count;
 225 };
 226
 227 struct r300_vap_invariant_state {
 228     uint32_t cb[9];
 229 };
 230
 231 struct r300_viewport_state {
 232     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 233     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 234     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 235     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 236     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 237     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 238     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 239 };
 240
 241 struct r300_ztop_state {
 242     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 243 };
 244
 245 /* The next several objects are not pure Radeon state; they inherit from
 246  * various Gallium classes. */
 247
 248 struct r300_constant_buffer {
 249     /* Buffer of constants */
 250     uint32_t constants[256][4];
 251     /* Total number of constants */
 252     unsigned count;
 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 we've flushed the query */
 271     boolean flushed;
 272     /* if begin has been emitted */
 273     boolean begin_emitted;
 274
 275     /* The buffer where query results are stored. */
 276     struct r300_winsys_buffer *buffer;
 277     /* The size of the buffer. */
 278     unsigned buffer_size;
 279     /* The domain of the buffer. */
 280     enum r300_buffer_domain domain;
 281
 282     /* Linked list members. */
 283     struct r300_query* prev;
 284     struct r300_query* next;
 285 };
 286
 287 /* Fence object.
 288  *
 289  * This is a fake fence. Instead of syncing with the fence, we sync
 290  * with the context, which is inefficient but compliant.
 291  *
 292  * This is not a subclass of pipe_fence_handle because pipe_fence_handle is
 293  * never actually fully defined. So, rather than have it as a member, and do
 294  * subclass-style casting, we treat pipe_fence_handle as an opaque, and just
 295  * trust that our state tracker does not ever mess up fence objects.
 296  */
 297 struct r300_fence {
 298     struct pipe_reference reference;
 299     struct r300_context *ctx;
 300     boolean signalled;
 301 };
 302
 303 struct r300_surface {
 304     struct pipe_surface base;
 305
 306     /* Winsys buffer backing the texture. */
 307     struct r300_winsys_buffer *buffer;
 308
 309     enum r300_buffer_domain domain;
 310
 311     uint32_t offset;
 312     uint32_t pitch;     /* COLORPITCH or DEPTHPITCH. */
 313     uint32_t format;    /* US_OUT_FMT or R300_ZB_FORMAT. */
 314 };
 315
 316 struct r300_texture {
 317     /* Parent class */
 318     struct u_resource b;
 319
 320     enum r300_buffer_domain domain;
 321
 322     /* Offsets into the buffer. */
 323     unsigned offset[R300_MAX_TEXTURE_LEVELS];
 324
 325     /* A pitch for each mip-level */
 326     unsigned pitch[R300_MAX_TEXTURE_LEVELS];
 327
 328     /* A pitch multiplied by blockwidth as hardware wants
 329      * the number of pixels instead of the number of blocks. */
 330     unsigned hwpitch[R300_MAX_TEXTURE_LEVELS];
 331
 332     /* Size of one zslice or face based on the texture target */
 333     unsigned layer_size[R300_MAX_TEXTURE_LEVELS];
 334
 335     /* Whether the mipmap level is macrotiled. */
 336     enum r300_buffer_tiling mip_macrotile[R300_MAX_TEXTURE_LEVELS];
 337
 338     /**
 339      * If non-zero, override the natural texture layout with
 340      * a custom stride (in bytes).
 341      *
 342      * \note Mipmapping fails for textures with a non-natural layout!
 343      *
 344      * \sa r300_texture_get_stride
 345      */
 346     unsigned stride_override;
 347
 348     /* Total size of this texture, in bytes. */
 349     unsigned size;
 350
 351     /* Whether this texture has non-power-of-two dimensions
 352      * or a user-specified pitch.
 353      * It can be either a regular texture or a rectangle one.
 354      */
 355     boolean uses_pitch;
 356
 357     /* Pipe buffer backing this texture. */
 358     struct r300_winsys_buffer *buffer;
 359
 360     /* Registers carrying texture format data. */
 361     /* Only format-independent bits should be filled in. */
 362     struct r300_texture_format_state tx_format;
 363     /* All bits should be filled in. */
 364     struct r300_texture_fb_state fb_state;
 365
 366     /* Buffer tiling */
 367     enum r300_buffer_tiling microtile, macrotile;
 368 };
 369
 370 struct r300_vertex_element_state {
 371     unsigned count;
 372     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 373
 374     /* If (velem[i].src_format != hw_format[i]), the vertex buffer
 375      * referenced by this vertex element cannot be used for rendering and
 376      * its vertex data must be translated to hw_format[i]. */
 377     enum pipe_format hw_format[PIPE_MAX_ATTRIBS];
 378     unsigned hw_format_size[PIPE_MAX_ATTRIBS];
 379
 380     /* The size of the vertex, in dwords. */
 381     unsigned vertex_size_dwords;
 382
 383     /* This might mean two things:
 384      * - src_format != hw_format, as discussed above.
 385      * - src_offset % 4 != 0. */
 386     boolean incompatible_layout;
 387
 388     struct r300_vertex_stream_state vertex_stream;
 389 };
 390
 391 struct r300_translate_context {
 392     /* Translate cache for incompatible vertex offset/stride/format fallback. */
 393     struct translate_cache *translate_cache;
 394
 395     /* The vertex buffer slot containing the translated buffer. */
 396     unsigned vb_slot;
 397
 398     /* Saved and new vertex element state. */
 399     void *saved_velems, *new_velems;
 400 };
 401
 402 struct r300_context {
 403     /* Parent class */
 404     struct pipe_context context;
 405
 406     /* The interface to the windowing system, etc. */
 407     struct r300_winsys_screen *rws;
 408     /* Screen. */
 409     struct r300_screen *screen;
 410     /* Draw module. Used mostly for SW TCL. */
 411     struct draw_context* draw;
 412     /* Accelerated blit support. */
 413     struct blitter_context* blitter;
 414     /* Stencil two-sided reference value fallback. */
 415     struct r300_stencilref_context *stencilref_fallback;
 416     /* For translating vertex buffers having incompatible vertex layout. */
 417     struct r300_translate_context tran;
 418
 419     /* Vertex buffer for rendering. */
 420     struct pipe_resource* vbo;
 421     /* The KIL opcode needs the first texture unit to be enabled
 422      * on r3xx-r4xx. In order to calm down the CS checker, we bind this
 423      * dummy texture there. */
 424     struct r300_sampler_view *texkill_sampler;
 425     /* Offset into the VBO. */
 426     size_t vbo_offset;
 427
 428     /* The currently active query. */
 429     struct r300_query *query_current;
 430     /* The saved query for blitter operations. */
 431     struct r300_query *blitter_saved_query;
 432     /* Query list. */
 433     struct r300_query query_list;
 434
 435     /* Various CSO state objects. */
 436     /* Beginning of atom list. */
 437     struct r300_atom atom_list;
 438     /* Anti-aliasing (MSAA) state. */
 439     struct r300_atom aa_state;
 440     /* Blend state. */
 441     struct r300_atom blend_state;
 442     /* Blend color state. */
 443     struct r300_atom blend_color_state;
 444     /* User clip planes. */
 445     struct r300_atom clip_state;
 446     /* Depth, stencil, and alpha state. */
 447     struct r300_atom dsa_state;
 448     /* Fragment shader. */
 449     struct r300_atom fs;
 450     /* Fragment shader RC_CONSTANT_STATE variables. */
 451     struct r300_atom fs_rc_constant_state;
 452     /* Fragment shader constant buffer. */
 453     struct r300_atom fs_constants;
 454     /* Framebuffer state. */
 455     struct r300_atom fb_state;
 456     /* Occlusion query. */
 457     struct r300_atom query_start;
 458     /* Rasterizer state. */
 459     struct r300_atom rs_state;
 460     /* RS block state + VAP (vertex shader) output mapping state. */
 461     struct r300_atom rs_block_state;
 462     /* Scissor state. */
 463     struct r300_atom scissor_state;
 464     /* Textures state. */
 465     struct r300_atom textures_state;
 466     /* Vertex stream formatting state. */
 467     struct r300_atom vertex_stream_state;
 468     /* Vertex shader. */
 469     struct r300_atom vs_state;
 470     /* Vertex shader constant buffer. */
 471     struct r300_atom vs_constants;
 472     /* Viewport state. */
 473     struct r300_atom viewport_state;
 474     /* ZTOP state. */
 475     struct r300_atom ztop_state;
 476     /* PVS flush. */
 477     struct r300_atom pvs_flush;
 478     /* VAP invariant state. */
 479     struct r300_atom vap_invariant_state;
 480     /* Texture cache invalidate. */
 481     struct r300_atom texture_cache_inval;
 482     /* GPU flush. */
 483     struct r300_atom gpu_flush;
 484
 485     /* Invariant state. This must be emitted to get the engine started. */
 486     struct r300_atom invariant_state;
 487
 488     /* Vertex buffers for Gallium. */
 489     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 490     int vertex_buffer_count;
 491     int vertex_buffer_max_index;
 492     /* Vertex elements for Gallium. */
 493     struct r300_vertex_element_state *velems;
 494     bool any_user_vbs;
 495
 496     /* Vertex info for Draw. */
 497     struct vertex_info vertex_info;
 498
 499     struct pipe_stencil_ref stencil_ref;
 500     struct pipe_viewport_state viewport;
 501
 502     /* Stream locations for SWTCL. */
 503     int stream_loc_notcl[16];
 504
 505     /* Flag indicating whether or not the HW is dirty. */
 506     uint32_t dirty_hw;
 507     /* Whether polygon offset is enabled. */
 508     boolean polygon_offset_enabled;
 509     /* Z buffer bit depth. */
 510     uint32_t zbuffer_bpp;
 511     /* Whether rendering is conditional and should be skipped. */
 512     boolean skip_rendering;
 513     /* Point sprites texcoord index,  1 bit per texcoord */
 514     int sprite_coord_enable;
 515     /* Whether two-sided color selection is enabled (AKA light_twoside). */
 516     boolean two_sided_color;
 517     /* Incompatible vertex buffer layout? (misaligned stride or buffer_offset) */
 518     boolean incompatible_vb_layout;
 519
 520     /* upload managers */
 521     struct u_upload_mgr *upload_vb;
 522     struct u_upload_mgr *upload_ib;
 523
 524     /* Stat counter. */
 525     uint64_t flush_counter;
 526 };
 527
 528 /* Convenience cast wrappers. */
 529 static INLINE struct r300_query* r300_query(struct pipe_query* q)
 530 {
 531     return (struct r300_query*)q;
 532 }
 533
 534 static INLINE struct r300_surface* r300_surface(struct pipe_surface* surf)
 535 {
 536     return (struct r300_surface*)surf;
 537 }
 538
 539 static INLINE struct r300_texture* r300_texture(struct pipe_resource* tex)
 540 {
 541     return (struct r300_texture*)tex;
 542 }
 543
 544 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 545 {
 546     return (struct r300_context*)context;
 547 }
 548
 549 static INLINE struct r300_fragment_shader *r300_fs(struct r300_context *r300)
 550 {
 551     return (struct r300_fragment_shader*)r300->fs.state;
 552 }
 553
 554 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 555                                          void *priv);
 556
 557 boolean r300_check_cs(struct r300_context *r300, unsigned size);
 558 void r300_finish(struct r300_context *r300);
 559
 560 /* Context initialization. */
 561 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 562 void r300_init_blit_functions(struct r300_context *r300);
 563 void r300_init_flush_functions(struct r300_context* r300);
 564 void r300_init_query_functions(struct r300_context* r300);
 565 void r300_init_render_functions(struct r300_context *r300);
 566 void r300_init_state_functions(struct r300_context* r300);
 567 void r300_init_resource_functions(struct r300_context* r300);
 568
 569 /* r300_query.c */
 570 void r300_resume_query(struct r300_context *r300,
 571                        struct r300_query *query);
 572 void r300_stop_query(struct r300_context *r300);
 573
 574 /* r300_render_translate.c */
 575 void r300_begin_vertex_translate(struct r300_context *r300);
 576 void r300_end_vertex_translate(struct r300_context *r300);
 577 void r300_translate_index_buffer(struct r300_context *r300,
 578                                  struct pipe_resource **index_buffer,
 579                                  unsigned *index_size, unsigned index_offset,
 580                                  unsigned *start, unsigned count);
 581
 582 /* r300_render_stencilref.c */
 583 void r300_plug_in_stencil_ref_fallback(struct r300_context *r300);
 584
 585 /* r300_state.c */
 586 void r300_mark_fs_code_dirty(struct r300_context *r300);
 587
 588 /* r300_debug.c */
 589 void r500_dump_rs_block(struct r300_rs_block *rs);
 590
 591
 592 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 593 {
 594     return SCREEN_DBG_ON(ctx->screen, flags);
 595 }
 596
 597 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 598                        const char * fmt, ...)
 599 {
 600     if (CTX_DBG_ON(ctx, flags)) {
 601         va_list va;
 602         va_start(va, fmt);
 603         vfprintf(stderr, fmt, va);
 604         va_end(va);
 605     }
 606 }
 607
 608 #define DBG_ON  CTX_DBG_ON
 609 #define DBG     CTX_DBG
 610
 611 #endif /* R300_CONTEXT_H */