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
  38 struct u_upload_mgr;
  39 struct r300_context;
  40 struct r300_fragment_shader;
  41 struct r300_vertex_shader;
  42 struct r300_stencilref_context;
  43
  44 struct r300_atom {
  45     /* Name, for debugging. */
  46     const char* name;
  47     /* Opaque state. */
  48     void* state;
  49     /* Emit the state to the context. */
  50     void (*emit)(struct r300_context*, unsigned, void*);
  51     /* Upper bound on number of dwords to emit. */
  52     unsigned size;
  53     /* Whether this atom should be emitted. */
  54     boolean dirty;
  55     /* Whether this atom may be emitted with state == NULL. */
  56     boolean allow_null_state;
  57 };
  58
  59 struct r300_aa_state {
  60     struct r300_surface *dest;
  61
  62     uint32_t aa_config;
  63     uint32_t aaresolve_ctl;
  64 };
  65
  66 struct r300_blend_state {
  67     uint32_t cb[8];
  68     uint32_t cb_no_readwrite[8];
  69 };
  70
  71 struct r300_blend_color_state {
  72     uint32_t cb[3];
  73 };
  74
  75 struct r300_clip_state {
  76     struct pipe_clip_state clip;
  77
  78     uint32_t cb[29];
  79 };
  80
  81 struct r300_dsa_state {
  82     struct pipe_depth_stencil_alpha_state dsa;
  83
  84     /* This is actually a command buffer with named dwords. */
  85     uint32_t cb_begin;
  86     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  87     uint32_t cb_reg_seq;
  88     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  89     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  90     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  91     uint32_t cb_reg;
  92     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  93
  94     /* The second command buffer disables zbuffer reads and writes. */
  95     uint32_t cb_no_readwrite[8];
  96
  97     /* Whether a two-sided stencil is enabled. */
  98     boolean two_sided;
  99     /* Whether a fallback should be used for a two-sided stencil ref value. */
 100     boolean two_sided_stencil_ref;
 101 };
 102
 103 struct r300_hyperz_state {
 104     int current_func; /* -1 after a clear before first op */
 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_fb_state {
 192     uint32_t pitch[R300_MAX_TEXTURE_LEVELS]; /* COLORPITCH or DEPTHPITCH. */
 193     uint32_t format; /* US_OUT_FMT or R300_ZB_FORMAT */
 194 };
 195
 196 struct r300_texture_sampler_state {
 197     struct r300_texture_format_state format;
 198     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 199     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 200     uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 201 };
 202
 203 struct r300_textures_state {
 204     /* Textures. */
 205     struct r300_sampler_view *sampler_views[16];
 206     int sampler_view_count;
 207     /* Sampler states. */
 208     struct r300_sampler_state *sampler_states[16];
 209     int sampler_state_count;
 210
 211     /* This is the merge of the texture and sampler states. */
 212     unsigned count;
 213     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 214     struct r300_texture_sampler_state regs[16];
 215 };
 216
 217 struct r300_vertex_stream_state {
 218     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 219     uint32_t vap_prog_stream_cntl[8];
 220     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 221     uint32_t vap_prog_stream_cntl_ext[8];
 222
 223     unsigned count;
 224 };
 225
 226 struct r300_invariant_state {
 227     uint32_t cb[20];
 228 };
 229
 230 struct r300_vap_invariant_state {
 231     uint32_t cb[9];
 232 };
 233
 234 struct r300_viewport_state {
 235     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 236     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 237     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 238     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 239     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 240     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 241     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 242 };
 243
 244 struct r300_ztop_state {
 245     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 246 };
 247
 248 /* The next several objects are not pure Radeon state; they inherit from
 249  * various Gallium classes. */
 250
 251 struct r300_constant_buffer {
 252     /* Buffer of constants */
 253     uint32_t *ptr;
 254     /* Remapping table. */
 255     unsigned *remap_table;
 256     /* const buffer base */
 257     uint32_t buffer_base;
 258 };
 259
 260 /* Query object.
 261  *
 262  * This is not a subclass of pipe_query because pipe_query is never
 263  * actually fully defined. So, rather than have it as a member, and do
 264  * subclass-style casting, we treat pipe_query as an opaque, and just
 265  * trust that our state tracker does not ever mess up query objects.
 266  */
 267 struct r300_query {
 268     /* The kind of query. Currently only OQ is supported. */
 269     unsigned type;
 270     /* The number of pipes where query results are stored. */
 271     unsigned num_pipes;
 272     /* How many results have been written, in dwords. It's incremented
 273      * after end_query and flush. */
 274     unsigned num_results;
 275     /* if we've flushed the query */
 276     boolean flushed;
 277     /* if begin has been emitted */
 278     boolean begin_emitted;
 279
 280     /* The buffer where query results are stored. */
 281     struct r300_winsys_buffer *buffer;
 282     struct r300_winsys_cs_buffer *cs_buffer;
 283     /* The size of the buffer. */
 284     unsigned buffer_size;
 285     /* The domain of the buffer. */
 286     enum r300_buffer_domain domain;
 287
 288     /* Linked list members. */
 289     struct r300_query* prev;
 290     struct r300_query* next;
 291 };
 292
 293 /* Fence object.
 294  *
 295  * This is a fake fence. Instead of syncing with the fence, we sync
 296  * with the context, which is inefficient but compliant.
 297  *
 298  * This is not a subclass of pipe_fence_handle because pipe_fence_handle is
 299  * never actually fully defined. So, rather than have it as a member, and do
 300  * subclass-style casting, we treat pipe_fence_handle as an opaque, and just
 301  * trust that our state tracker does not ever mess up fence objects.
 302  */
 303 struct r300_fence {
 304     struct pipe_reference reference;
 305     struct r300_context *ctx;
 306     boolean signalled;
 307 };
 308
 309 struct r300_surface {
 310     struct pipe_surface base;
 311
 312     /* Winsys buffer backing the texture. */
 313     struct r300_winsys_buffer *buffer;
 314     struct r300_winsys_cs_buffer *cs_buffer;
 315
 316     enum r300_buffer_domain domain;
 317
 318     uint32_t offset;    /* COLOROFFSET or DEPTHOFFSET. */
 319     uint32_t pitch;     /* COLORPITCH or DEPTHPITCH. */
 320     uint32_t format;    /* US_OUT_FMT or ZB_FORMAT. */
 321
 322     /* Parameters dedicated to the CBZB clear. */
 323     uint32_t cbzb_width;            /* Aligned width. */
 324     uint32_t cbzb_height;           /* Half of the height. */
 325     uint32_t cbzb_midpoint_offset;  /* DEPTHOFFSET. */
 326     uint32_t cbzb_pitch;            /* DEPTHPITCH. */
 327     uint32_t cbzb_format;           /* ZB_FORMAT. */
 328
 329     /* Whether the CBZB clear is allowed on the surface. */
 330     boolean cbzb_allowed;
 331
 332 };
 333
 334 struct r300_texture_desc {
 335     /* Parent class. */
 336     struct u_resource b;
 337
 338     /* Width, height, and depth.
 339      * Most of the time, these are equal to pipe_texture::width0, height0,
 340      * and depth0. However, NPOT 3D textures must have dimensions aligned
 341      * to POT, and this is the only case when these variables differ from
 342      * pipe_texture. */
 343     unsigned width0, height0, depth0;
 344
 345     /* Buffer tiling.
 346      * Macrotiling is specified per-level because small mipmaps cannot
 347      * be macrotiled. */
 348     enum r300_buffer_tiling microtile;
 349     enum r300_buffer_tiling macrotile[R300_MAX_TEXTURE_LEVELS];
 350
 351     /* Offsets into the buffer. */
 352     unsigned offset_in_bytes[R300_MAX_TEXTURE_LEVELS];
 353
 354     /* Strides for each mip-level. */
 355     unsigned stride_in_pixels[R300_MAX_TEXTURE_LEVELS];
 356     unsigned stride_in_bytes[R300_MAX_TEXTURE_LEVELS];
 357
 358     /* Size of one zslice or face or 2D image based on the texture target. */
 359     unsigned layer_size_in_bytes[R300_MAX_TEXTURE_LEVELS];
 360
 361     /* Total size of this texture, in bytes,
 362      * derived from the texture properties. */
 363     unsigned size_in_bytes;
 364
 365     /* Total size of the buffer backing this texture, in bytes.
 366      * It must be >= size. */
 367     unsigned buffer_size_in_bytes;
 368
 369     /**
 370      * If non-zero, override the natural texture layout with
 371      * a custom stride (in bytes).
 372      *
 373      * \note Mipmapping fails for textures with a non-natural layout!
 374      *
 375      * \sa r300_texture_get_stride
 376      */
 377     unsigned stride_in_bytes_override;
 378
 379     /* Whether this texture has non-power-of-two dimensions.
 380      * It can be either a regular texture or a rectangle one. */
 381     boolean is_npot;
 382
 383     /* This flag says that hardware must use the stride for addressing
 384      * instead of the width. */
 385     boolean uses_stride_addressing;
 386
 387     /* Whether CBZB fast color clear is allowed on the miplevel. */
 388     boolean cbzb_allowed[R300_MAX_TEXTURE_LEVELS];
 389
 390     /* Zbuffer compression info for each miplevel. */
 391     boolean zcomp8x8[R300_MAX_TEXTURE_LEVELS];
 392     /* If zero, then disable compression. */
 393     unsigned zmask_dwords[R300_MAX_TEXTURE_LEVELS];
 394 };
 395
 396 struct r300_texture {
 397     struct r300_texture_desc desc;
 398
 399     enum r300_buffer_domain domain;
 400
 401     /* Pipe buffer backing this texture. */
 402     struct r300_winsys_buffer *buffer;
 403     struct r300_winsys_cs_buffer *cs_buffer;
 404
 405     /* Registers carrying texture format data. */
 406     /* Only format-independent bits should be filled in. */
 407     struct r300_texture_format_state tx_format;
 408     /* All bits should be filled in. */
 409     struct r300_texture_fb_state fb_state;
 410
 411     /* hyper-z memory allocs */
 412     struct mem_block *hiz_mem[R300_MAX_TEXTURE_LEVELS];
 413     boolean hiz_in_use[R300_MAX_TEXTURE_LEVELS];
 414
 415     /* This is the level tiling flags were last time set for.
 416      * It's used to prevent redundant tiling-flags changes from happening.*/
 417     unsigned surface_level;
 418 };
 419
 420 struct r300_vertex_element_state {
 421     unsigned count;
 422     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 423     unsigned format_size[PIPE_MAX_ATTRIBS];
 424
 425     struct u_vbuf_mgr_elements *vmgr_elements;
 426
 427     /* The size of the vertex, in dwords. */
 428     unsigned vertex_size_dwords;
 429
 430     struct r300_vertex_stream_state vertex_stream;
 431 };
 432
 433 struct r300_context {
 434     /* Parent class */
 435     struct pipe_context context;
 436
 437     /* The interface to the windowing system, etc. */
 438     struct r300_winsys_screen *rws;
 439     /* The command stream. */
 440     struct r300_winsys_cs *cs;
 441     /* Screen. */
 442     struct r300_screen *screen;
 443
 444     /* Draw module. Used mostly for SW TCL. */
 445     struct draw_context* draw;
 446     /* Vertex buffer for SW TCL. */
 447     struct pipe_resource* vbo;
 448     /* Offset and size into the SW TCL VBO. */
 449     size_t draw_vbo_offset;
 450     size_t draw_vbo_size;
 451     /* Whether the VBO must not be flushed. */
 452     boolean draw_vbo_locked;
 453     boolean draw_first_emitted;
 454
 455     /* Accelerated blit support. */
 456     struct blitter_context* blitter;
 457     /* Stencil two-sided reference value fallback. */
 458     struct r300_stencilref_context *stencilref_fallback;
 459
 460     /* The KIL opcode needs the first texture unit to be enabled
 461      * on r3xx-r4xx. In order to calm down the CS checker, we bind this
 462      * dummy texture there. */
 463     struct r300_sampler_view *texkill_sampler;
 464
 465     /* When no vertex buffer is set, this one is used instead to prevent
 466      * hardlocks. */
 467     struct pipe_resource *dummy_vb;
 468
 469     /* The currently active query. */
 470     struct r300_query *query_current;
 471     /* The saved query for blitter operations. */
 472     struct r300_query *blitter_saved_query;
 473     /* Query list. */
 474     struct r300_query query_list;
 475
 476     /* Various CSO state objects. */
 477
 478     /* Each atom is emitted in the order it appears here, which can affect
 479      * performance and stability if not handled with care. */
 480     /* GPU flush. */
 481     struct r300_atom gpu_flush;
 482     /* Anti-aliasing (MSAA) state. */
 483     struct r300_atom aa_state;
 484     /* Framebuffer state. */
 485     struct r300_atom fb_state;
 486     /* HyperZ state (various SC/ZB bits). */
 487     struct r300_atom hyperz_state;
 488     /* ZTOP state. */
 489     struct r300_atom ztop_state;
 490     /* Depth, stencil, and alpha state. */
 491     struct r300_atom dsa_state;
 492     /* Blend state. */
 493     struct r300_atom blend_state;
 494     /* Blend color state. */
 495     struct r300_atom blend_color_state;
 496     /* Scissor state. */
 497     struct r300_atom scissor_state;
 498     /* Invariant state. This must be emitted to get the engine started. */
 499     struct r300_atom invariant_state;
 500     /* Viewport state. */
 501     struct r300_atom viewport_state;
 502     /* PVS flush. */
 503     struct r300_atom pvs_flush;
 504     /* VAP invariant state. */
 505     struct r300_atom vap_invariant_state;
 506     /* Vertex stream formatting state. */
 507     struct r300_atom vertex_stream_state;
 508     /* Vertex shader. */
 509     struct r300_atom vs_state;
 510     /* User clip planes. */
 511     struct r300_atom clip_state;
 512     /* RS block state + VAP (vertex shader) output mapping state. */
 513     struct r300_atom rs_block_state;
 514     /* Rasterizer state. */
 515     struct r300_atom rs_state;
 516     /* Framebuffer state (pipelined regs). */
 517     struct r300_atom fb_state_pipelined;
 518     /* Fragment shader. */
 519     struct r300_atom fs;
 520     /* Fragment shader RC_CONSTANT_STATE variables. */
 521     struct r300_atom fs_rc_constant_state;
 522     /* Fragment shader constant buffer. */
 523     struct r300_atom fs_constants;
 524     /* Vertex shader constant buffer. */
 525     struct r300_atom vs_constants;
 526     /* Texture cache invalidate. */
 527     struct r300_atom texture_cache_inval;
 528     /* Textures state. */
 529     struct r300_atom textures_state;
 530     /* HiZ clear */
 531     struct r300_atom hiz_clear;
 532     /* zmask clear */
 533     struct r300_atom zmask_clear;
 534     /* Occlusion query. */
 535     struct r300_atom query_start;
 536
 537     /* The pointers to the first and the last atom. */
 538     struct r300_atom *first_dirty, *last_dirty;
 539
 540     /* Vertex elements for Gallium. */
 541     struct r300_vertex_element_state *velems;
 542
 543     struct pipe_index_buffer index_buffer;
 544
 545     /* Vertex info for Draw. */
 546     struct vertex_info vertex_info;
 547
 548     struct pipe_stencil_ref stencil_ref;
 549     struct pipe_viewport_state viewport;
 550
 551     /* Stream locations for SWTCL. */
 552     int stream_loc_notcl[16];
 553
 554     /* Flag indicating whether or not the HW is dirty. */
 555     uint32_t dirty_hw;
 556     /* Whether polygon offset is enabled. */
 557     boolean polygon_offset_enabled;
 558     /* Z buffer bit depth. */
 559     uint32_t zbuffer_bpp;
 560     /* Whether rendering is conditional and should be skipped. */
 561     boolean skip_rendering;
 562     /* Point sprites texcoord index,  1 bit per texcoord */
 563     int sprite_coord_enable;
 564     /* Whether two-sided color selection is enabled (AKA light_twoside). */
 565     boolean two_sided_color;
 566
 567     boolean cbzb_clear;
 568     /* Whether ZMASK is enabled. */
 569     boolean zmask_in_use;
 570     /* Whether ZMASK is being decompressed. */
 571     boolean zmask_decompress;
 572     /* Whether ZMASK is locked, i.e. should be disabled and cannot be taken over. */
 573     boolean zmask_locked;
 574     /* The zbuffer the ZMASK of which is locked. */
 575     struct pipe_surface *locked_zbuffer;
 576
 577     void *dsa_decompress_zmask;
 578
 579     /* two mem block managers for hiz/zmask ram space */
 580     struct mem_block *hiz_mm;
 581
 582     /* upload manager */
 583     struct u_upload_mgr *upload_ib;
 584
 585     struct u_vbuf_mgr *vbuf_mgr;
 586
 587     struct util_slab_mempool pool_transfers;
 588
 589     /* Stat counter. */
 590     uint64_t flush_counter;
 591
 592     /* const tracking for VS */
 593     int vs_const_base;
 594
 595     /* AOS (PACKET3_3D_LOAD_VBPNTR) command buffer for the case offset=0. */
 596     uint32_t vertex_arrays_cb[(16 * 3 + 1) / 2];
 597     boolean vertex_arrays_dirty;
 598
 599     /* Whether any buffer (FB, textures, VBOs) has been set, but buffers
 600      * haven't been validated yet. */
 601     boolean validate_buffers;
 602     /* Whether user buffers have been validated. */
 603     boolean upload_vb_validated;
 604     boolean upload_ib_validated;
 605 };
 606
 607 #define foreach_atom(r300, atom) \
 608     for (atom = &r300->gpu_flush; atom != (&r300->query_start)+1; atom++)
 609
 610 #define foreach_dirty_atom(r300, atom) \
 611     for (atom = r300->first_dirty; atom != r300->last_dirty; atom++)
 612
 613 /* Convenience cast wrappers. */
 614 static INLINE struct r300_query* r300_query(struct pipe_query* q)
 615 {
 616     return (struct r300_query*)q;
 617 }
 618
 619 static INLINE struct r300_surface* r300_surface(struct pipe_surface* surf)
 620 {
 621     return (struct r300_surface*)surf;
 622 }
 623
 624 static INLINE struct r300_texture* r300_texture(struct pipe_resource* tex)
 625 {
 626     return (struct r300_texture*)tex;
 627 }
 628
 629 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 630 {
 631     return (struct r300_context*)context;
 632 }
 633
 634 static INLINE struct r300_fragment_shader *r300_fs(struct r300_context *r300)
 635 {
 636     return (struct r300_fragment_shader*)r300->fs.state;
 637 }
 638
 639 static INLINE void r300_mark_atom_dirty(struct r300_context *r300,
 640                                         struct r300_atom *atom)
 641 {
 642     atom->dirty = TRUE;
 643
 644     if (!r300->first_dirty) {
 645         r300->first_dirty = atom;
 646         r300->last_dirty = atom+1;
 647     } else {
 648         if (atom < r300->first_dirty)
 649             r300->first_dirty = atom;
 650         else if (atom+1 > r300->last_dirty)
 651             r300->last_dirty = atom+1;
 652     }
 653 }
 654
 655 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 656                                          void *priv);
 657
 658 void r300_finish(struct r300_context *r300);
 659 void r300_flush_cb(void *data);
 660
 661 /* Context initialization. */
 662 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 663 void r300_init_blit_functions(struct r300_context *r300);
 664 void r300_init_flush_functions(struct r300_context* r300);
 665 void r300_init_query_functions(struct r300_context* r300);
 666 void r300_init_render_functions(struct r300_context *r300);
 667 void r300_init_state_functions(struct r300_context* r300);
 668 void r300_init_resource_functions(struct r300_context* r300);
 669
 670 /* r300_blit.c */
 671 void r300_decompress_zmask(struct r300_context *r300);
 672 void r300_decompress_zmask_locked_unsafe(struct r300_context *r300);
 673 void r300_decompress_zmask_locked(struct r300_context *r300);
 674
 675 /* r300_query.c */
 676 void r300_resume_query(struct r300_context *r300,
 677                        struct r300_query *query);
 678 void r300_stop_query(struct r300_context *r300);
 679
 680 /* r300_render_translate.c */
 681 void r300_translate_index_buffer(struct r300_context *r300,
 682                                  struct pipe_resource **index_buffer,
 683                                  unsigned *index_size, unsigned index_offset,
 684                                  unsigned *start, unsigned count);
 685
 686 /* r300_render_stencilref.c */
 687 void r300_plug_in_stencil_ref_fallback(struct r300_context *r300);
 688
 689 /* r300_render.c */
 690 void r300_draw_flush_vbuf(struct r300_context *r300);
 691 void r500_emit_index_bias(struct r300_context *r300, int index_bias);
 692
 693 /* r300_state.c */
 694 enum r300_fb_state_change {
 695     R300_CHANGED_FB_STATE = 0,
 696     R300_CHANGED_HYPERZ_FLAG,
 697     R300_CHANGED_MULTIWRITE
 698 };
 699
 700 void r300_mark_fb_state_dirty(struct r300_context *r300,
 701                               enum r300_fb_state_change change);
 702 void r300_mark_fs_code_dirty(struct r300_context *r300);
 703
 704 /* r300_state_derived.c */
 705 void r300_update_derived_state(struct r300_context* r300);
 706
 707 /* r300_debug.c */
 708 void r500_dump_rs_block(struct r300_rs_block *rs);
 709
 710
 711 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 712 {
 713     return SCREEN_DBG_ON(ctx->screen, flags);
 714 }
 715
 716 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 717                        const char * fmt, ...)
 718 {
 719     if (CTX_DBG_ON(ctx, flags)) {
 720         va_list va;
 721         va_start(va, fmt);
 722         vfprintf(stderr, fmt, va);
 723         va_end(va);
 724     }
 725 }
 726
 727 #define DBG_ON  CTX_DBG_ON
 728 #define DBG     CTX_DBG
 729
 730 #endif /* R300_CONTEXT_H */