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 cb[8];
  66     uint32_t cb_no_readwrite[8];
  67 };
  68
  69 struct r300_blend_color_state {
  70     uint32_t cb[3];
  71 };
  72
  73 struct r300_clip_state {
  74     struct pipe_clip_state clip;
  75
  76     uint32_t cb[29];
  77 };
  78
  79 struct r300_dsa_state {
  80     struct pipe_depth_stencil_alpha_state dsa;
  81
  82     /* This is actually a command buffer with named dwords. */
  83     uint32_t cb_begin;
  84     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  85     uint32_t cb_reg_seq;
  86     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  87     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  88     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  89     uint32_t cb_reg;
  90     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  91
  92     /* The second command buffer disables zbuffer reads and writes. */
  93     uint32_t cb_no_readwrite[8];
  94
  95     /* Whether a two-sided stencil is enabled. */
  96     boolean two_sided;
  97     /* Whether a fallback should be used for a two-sided stencil ref value. */
  98     boolean two_sided_stencil_ref;
  99 };
 100
 101 struct r300_rs_state {
 102     /* Original rasterizer state. */
 103     struct pipe_rasterizer_state rs;
 104     /* Draw-specific rasterizer state. */
 105     struct pipe_rasterizer_state rs_draw;
 106
 107     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
 108     uint32_t multisample_position_0;/* R300_GB_MSPOS0: 0x4010 */
 109     uint32_t multisample_position_1;/* R300_GB_MSPOS1: 0x4014 */
 110     uint32_t antialiasing_config;   /* R300_GB_AA_CONFIG: 0x4020 */
 111     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
 112     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
 113     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
 114     float depth_scale;            /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
 115                                   /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
 116     float depth_offset;           /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
 117                                   /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
 118     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
 119     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
 120     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
 121     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
 122     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
 123     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
 124     uint32_t clip_rule;             /* R300_SC_CLIP_RULE: 0x43D0 */
 125
 126     /* Specifies top of Raster pipe specific enable controls,
 127      * i.e. texture coordinates stuffing for points, lines, triangles */
 128     uint32_t stuffing_enable;       /* R300_GB_ENABLE: 0x4008 */
 129
 130     /* Point sprites texture coordinates, 0: lower left, 1: upper right */
 131     float point_texcoord_left;      /* R300_GA_POINT_S0: 0x4200 */
 132     float point_texcoord_bottom;    /* R300_GA_POINT_T0: 0x4204 */
 133     float point_texcoord_right;     /* R300_GA_POINT_S1: 0x4208 */
 134     float point_texcoord_top;       /* R300_GA_POINT_T1: 0x420c */
 135 };
 136
 137 struct r300_rs_block {
 138     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
 139     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
 140     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
 141
 142     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
 143     uint32_t count; /* R300_RS_COUNT */
 144     uint32_t inst_count; /* R300_RS_INST_COUNT */
 145     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
 146 };
 147
 148 struct r300_sampler_state {
 149     struct pipe_sampler_state state;
 150
 151     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 152     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 153     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 154
 155     /* Min/max LOD must be clamped to [0, last_level], thus
 156      * it's dependent on a currently bound texture */
 157     unsigned min_lod, max_lod;
 158 };
 159
 160 struct r300_texture_format_state {
 161     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 162     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 163     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 164     uint32_t tile_config; /* R300_TX_OFFSET (subset thereof) */
 165 };
 166
 167 struct r300_sampler_view {
 168     struct pipe_sampler_view base;
 169
 170     /* Swizzles in the UTIL_FORMAT_SWIZZLE_* representation,
 171      * derived from base. */
 172     unsigned char swizzle[4];
 173
 174     /* Copy of r300_texture::texture_format_state with format-specific bits
 175      * added. */
 176     struct r300_texture_format_state format;
 177
 178     /* The texture cache region for this texture. */
 179     uint32_t texcache_region;
 180 };
 181
 182 struct r300_texture_fb_state {
 183     uint32_t pitch[R300_MAX_TEXTURE_LEVELS]; /* COLORPITCH or DEPTHPITCH. */
 184     uint32_t format; /* US_OUT_FMT or R300_ZB_FORMAT */
 185 };
 186
 187 struct r300_texture_sampler_state {
 188     struct r300_texture_format_state format;
 189     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 190     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 191     uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 192 };
 193
 194 struct r300_textures_state {
 195     /* Textures. */
 196     struct r300_sampler_view *sampler_views[16];
 197     int sampler_view_count;
 198     /* Sampler states. */
 199     struct r300_sampler_state *sampler_states[16];
 200     int sampler_state_count;
 201
 202     /* This is the merge of the texture and sampler states. */
 203     unsigned count;
 204     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 205     struct r300_texture_sampler_state regs[16];
 206 };
 207
 208 struct r300_vertex_stream_state {
 209     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 210     uint32_t vap_prog_stream_cntl[8];
 211     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 212     uint32_t vap_prog_stream_cntl_ext[8];
 213
 214     unsigned count;
 215 };
 216
 217 struct r300_viewport_state {
 218     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 219     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 220     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 221     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 222     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 223     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 224     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 225 };
 226
 227 struct r300_ztop_state {
 228     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 229 };
 230
 231 /* The next several objects are not pure Radeon state; they inherit from
 232  * various Gallium classes. */
 233
 234 struct r300_constant_buffer {
 235     /* Buffer of constants */
 236     uint32_t constants[256][4];
 237     /* Total number of constants */
 238     unsigned count;
 239 };
 240
 241 /* Query object.
 242  *
 243  * This is not a subclass of pipe_query because pipe_query is never
 244  * actually fully defined. So, rather than have it as a member, and do
 245  * subclass-style casting, we treat pipe_query as an opaque, and just
 246  * trust that our state tracker does not ever mess up query objects.
 247  */
 248 struct r300_query {
 249     /* The kind of query. Currently only OQ is supported. */
 250     unsigned type;
 251     /* The number of pipes where query results are stored. */
 252     unsigned num_pipes;
 253     /* How many results have been written, in dwords. It's incremented
 254      * after end_query and flush. */
 255     unsigned num_results;
 256     /* if we've flushed the query */
 257     boolean flushed;
 258     /* if begin has been emitted */
 259     boolean begin_emitted;
 260
 261     /* The buffer where query results are stored. */
 262     struct r300_winsys_buffer *buffer;
 263     /* The size of the buffer. */
 264     unsigned buffer_size;
 265     /* The domain of the buffer. */
 266     enum r300_buffer_domain domain;
 267
 268     /* Linked list members. */
 269     struct r300_query* prev;
 270     struct r300_query* next;
 271 };
 272
 273 /* Fence object.
 274  *
 275  * This is a fake fence. Instead of syncing with the fence, we sync
 276  * with the context, which is inefficient but compliant.
 277  *
 278  * This is not a subclass of pipe_fence_handle because pipe_fence_handle is
 279  * never actually fully defined. So, rather than have it as a member, and do
 280  * subclass-style casting, we treat pipe_fence_handle as an opaque, and just
 281  * trust that our state tracker does not ever mess up fence objects.
 282  */
 283 struct r300_fence {
 284     struct pipe_reference reference;
 285     struct r300_context *ctx;
 286     boolean signalled;
 287 };
 288
 289 struct r300_surface {
 290     struct pipe_surface base;
 291
 292     /* Winsys buffer backing the texture. */
 293     struct r300_winsys_buffer *buffer;
 294
 295     enum r300_buffer_domain domain;
 296
 297     uint32_t offset;
 298     uint32_t pitch;     /* COLORPITCH or DEPTHPITCH. */
 299     uint32_t format;    /* US_OUT_FMT or R300_ZB_FORMAT. */
 300 };
 301
 302 struct r300_texture {
 303     /* Parent class */
 304     struct u_resource b;
 305
 306     enum r300_buffer_domain domain;
 307
 308     /* Offsets into the buffer. */
 309     unsigned offset[R300_MAX_TEXTURE_LEVELS];
 310
 311     /* A pitch for each mip-level */
 312     unsigned pitch[R300_MAX_TEXTURE_LEVELS];
 313
 314     /* A pitch multiplied by blockwidth as hardware wants
 315      * the number of pixels instead of the number of blocks. */
 316     unsigned hwpitch[R300_MAX_TEXTURE_LEVELS];
 317
 318     /* Size of one zslice or face based on the texture target */
 319     unsigned layer_size[R300_MAX_TEXTURE_LEVELS];
 320
 321     /* Whether the mipmap level is macrotiled. */
 322     enum r300_buffer_tiling mip_macrotile[R300_MAX_TEXTURE_LEVELS];
 323
 324     /**
 325      * If non-zero, override the natural texture layout with
 326      * a custom stride (in bytes).
 327      *
 328      * \note Mipmapping fails for textures with a non-natural layout!
 329      *
 330      * \sa r300_texture_get_stride
 331      */
 332     unsigned stride_override;
 333
 334     /* Total size of this texture, in bytes. */
 335     unsigned size;
 336
 337     /* Whether this texture has non-power-of-two dimensions
 338      * or a user-specified pitch.
 339      * It can be either a regular texture or a rectangle one.
 340      */
 341     boolean uses_pitch;
 342
 343     /* Pipe buffer backing this texture. */
 344     struct r300_winsys_buffer *buffer;
 345
 346     /* Registers carrying texture format data. */
 347     /* Only format-independent bits should be filled in. */
 348     struct r300_texture_format_state tx_format;
 349     /* All bits should be filled in. */
 350     struct r300_texture_fb_state fb_state;
 351
 352     /* Buffer tiling */
 353     enum r300_buffer_tiling microtile, macrotile;
 354 };
 355
 356 struct r300_vertex_element_state {
 357     unsigned count;
 358     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 359
 360     /* If (velem[i].src_format != hw_format[i]), the vertex buffer
 361      * referenced by this vertex element cannot be used for rendering and
 362      * its vertex data must be translated to hw_format[i]. */
 363     enum pipe_format hw_format[PIPE_MAX_ATTRIBS];
 364     unsigned hw_format_size[PIPE_MAX_ATTRIBS];
 365
 366     /* The size of the vertex, in dwords. */
 367     unsigned vertex_size_dwords;
 368
 369     /* This might mean two things:
 370      * - src_format != hw_format, as discussed above.
 371      * - src_offset % 4 != 0. */
 372     boolean incompatible_layout;
 373
 374     struct r300_vertex_stream_state vertex_stream;
 375 };
 376
 377 struct r300_translate_context {
 378     /* Translate cache for incompatible vertex offset/stride/format fallback. */
 379     struct translate_cache *translate_cache;
 380
 381     /* The vertex buffer slot containing the translated buffer. */
 382     unsigned vb_slot;
 383
 384     /* Saved and new vertex element state. */
 385     void *saved_velems, *new_velems;
 386 };
 387
 388 struct r300_context {
 389     /* Parent class */
 390     struct pipe_context context;
 391
 392     /* The interface to the windowing system, etc. */
 393     struct r300_winsys_screen *rws;
 394     /* Screen. */
 395     struct r300_screen *screen;
 396     /* Draw module. Used mostly for SW TCL. */
 397     struct draw_context* draw;
 398     /* Accelerated blit support. */
 399     struct blitter_context* blitter;
 400     /* Stencil two-sided reference value fallback. */
 401     struct r300_stencilref_context *stencilref_fallback;
 402     /* For translating vertex buffers having incompatible vertex layout. */
 403     struct r300_translate_context tran;
 404
 405     /* Vertex buffer for rendering. */
 406     struct pipe_resource* vbo;
 407     /* The KIL opcode needs the first texture unit to be enabled
 408      * on r3xx-r4xx. In order to calm down the CS checker, we bind this
 409      * dummy texture there. */
 410     struct r300_sampler_view *texkill_sampler;
 411     /* Offset into the VBO. */
 412     size_t vbo_offset;
 413
 414     /* The currently active query. */
 415     struct r300_query *query_current;
 416     /* The saved query for blitter operations. */
 417     struct r300_query *blitter_saved_query;
 418     /* Query list. */
 419     struct r300_query query_list;
 420
 421     /* Various CSO state objects. */
 422     /* Beginning of atom list. */
 423     struct r300_atom atom_list;
 424     /* Blend state. */
 425     struct r300_atom blend_state;
 426     /* Blend color state. */
 427     struct r300_atom blend_color_state;
 428     /* User clip planes. */
 429     struct r300_atom clip_state;
 430     /* Depth, stencil, and alpha state. */
 431     struct r300_atom dsa_state;
 432     /* Fragment shader. */
 433     struct r300_atom fs;
 434     /* Fragment shader RC_CONSTANT_STATE variables. */
 435     struct r300_atom fs_rc_constant_state;
 436     /* Fragment shader constant buffer. */
 437     struct r300_atom fs_constants;
 438     /* Framebuffer state. */
 439     struct r300_atom fb_state;
 440     /* Occlusion query. */
 441     struct r300_atom query_start;
 442     /* Rasterizer state. */
 443     struct r300_atom rs_state;
 444     /* RS block state + VAP (vertex shader) output mapping state. */
 445     struct r300_atom rs_block_state;
 446     /* Scissor state. */
 447     struct r300_atom scissor_state;
 448     /* Textures state. */
 449     struct r300_atom textures_state;
 450     /* Vertex stream formatting state. */
 451     struct r300_atom vertex_stream_state;
 452     /* Vertex shader. */
 453     struct r300_atom vs_state;
 454     /* Vertex shader constant buffer. */
 455     struct r300_atom vs_constants;
 456     /* Viewport state. */
 457     struct r300_atom viewport_state;
 458     /* ZTOP state. */
 459     struct r300_atom ztop_state;
 460     /* PVS flush. */
 461     struct r300_atom pvs_flush;
 462     /* Texture cache invalidate. */
 463     struct r300_atom texture_cache_inval;
 464
 465     /* Invariant state. This must be emitted to get the engine started. */
 466     struct r300_atom invariant_state;
 467
 468     /* Vertex buffers for Gallium. */
 469     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 470     int vertex_buffer_count;
 471     int vertex_buffer_max_index;
 472     /* Vertex elements for Gallium. */
 473     struct r300_vertex_element_state *velems;
 474     bool any_user_vbs;
 475
 476     /* Vertex info for Draw. */
 477     struct vertex_info vertex_info;
 478
 479     struct pipe_stencil_ref stencil_ref;
 480     struct pipe_viewport_state viewport;
 481
 482     /* Stream locations for SWTCL. */
 483     int stream_loc_notcl[16];
 484
 485     /* Flag indicating whether or not the HW is dirty. */
 486     uint32_t dirty_hw;
 487     /* Whether polygon offset is enabled. */
 488     boolean polygon_offset_enabled;
 489     /* Z buffer bit depth. */
 490     uint32_t zbuffer_bpp;
 491     /* Whether rendering is conditional and should be skipped. */
 492     boolean skip_rendering;
 493     /* Point sprites texcoord index,  1 bit per texcoord */
 494     int sprite_coord_enable;
 495     /* Whether two-sided color selection is enabled (AKA light_twoside). */
 496     boolean two_sided_color;
 497     /* Incompatible vertex buffer layout? (misaligned stride or buffer_offset) */
 498     boolean incompatible_vb_layout;
 499
 500     /* upload managers */
 501     struct u_upload_mgr *upload_vb;
 502     struct u_upload_mgr *upload_ib;
 503
 504     /* Stat counter. */
 505     uint64_t flush_counter;
 506 };
 507
 508 /* Convenience cast wrappers. */
 509 static INLINE struct r300_query* r300_query(struct pipe_query* q)
 510 {
 511     return (struct r300_query*)q;
 512 }
 513
 514 static INLINE struct r300_surface* r300_surface(struct pipe_surface* surf)
 515 {
 516     return (struct r300_surface*)surf;
 517 }
 518
 519 static INLINE struct r300_texture* r300_texture(struct pipe_resource* tex)
 520 {
 521     return (struct r300_texture*)tex;
 522 }
 523
 524 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 525 {
 526     return (struct r300_context*)context;
 527 }
 528
 529 static INLINE struct r300_fragment_shader *r300_fs(struct r300_context *r300)
 530 {
 531     return (struct r300_fragment_shader*)r300->fs.state;
 532 }
 533
 534 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 535                                          void *priv);
 536
 537 boolean r300_check_cs(struct r300_context *r300, unsigned size);
 538 void r300_finish(struct r300_context *r300);
 539
 540 /* Context initialization. */
 541 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 542 void r300_init_blit_functions(struct r300_context *r300);
 543 void r300_init_flush_functions(struct r300_context* r300);
 544 void r300_init_query_functions(struct r300_context* r300);
 545 void r300_init_render_functions(struct r300_context *r300);
 546 void r300_init_state_functions(struct r300_context* r300);
 547 void r300_init_resource_functions(struct r300_context* r300);
 548
 549 /* r300_query.c */
 550 void r300_resume_query(struct r300_context *r300,
 551                        struct r300_query *query);
 552 void r300_stop_query(struct r300_context *r300);
 553
 554 /* r300_render_translate.c */
 555 void r300_begin_vertex_translate(struct r300_context *r300);
 556 void r300_end_vertex_translate(struct r300_context *r300);
 557 void r300_translate_index_buffer(struct r300_context *r300,
 558                                  struct pipe_resource **index_buffer,
 559                                  unsigned *index_size, unsigned index_offset,
 560                                  unsigned *start, unsigned count);
 561
 562 /* r300_render_stencilref.c */
 563 void r300_plug_in_stencil_ref_fallback(struct r300_context *r300);
 564
 565 /* r300_state.c */
 566 void r300_mark_fs_code_dirty(struct r300_context *r300);
 567
 568 /* r300_debug.c */
 569 void r500_dump_rs_block(struct r300_rs_block *rs);
 570
 571
 572 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 573 {
 574     return SCREEN_DBG_ON(ctx->screen, flags);
 575 }
 576
 577 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 578                        const char * fmt, ...)
 579 {
 580     if (CTX_DBG_ON(ctx, flags)) {
 581         va_list va;
 582         va_start(va, fmt);
 583         vfprintf(stderr, fmt, va);
 584         va_end(va);
 585     }
 586 }
 587
 588 #define DBG_ON  CTX_DBG_ON
 589 #define DBG     CTX_DBG
 590
 591 #endif /* R300_CONTEXT_H */