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
  33 #include "r300_defines.h"
  34 #include "r300_screen.h"
  35
  36 struct u_upload_mgr;
  37 struct r300_context;
  38
  39 struct r300_fragment_shader;
  40 struct r300_vertex_shader;
  41
  42 struct r300_atom {
  43     /* List pointers. */
  44     struct r300_atom *prev, *next;
  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     /* Another dirty flag that is never automatically cleared. */
  56     boolean always_dirty;
  57 };
  58
  59 struct r300_blend_state {
  60     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  61     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  62     uint32_t color_channel_mask;  /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
  63     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  64     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  65 };
  66
  67 struct r300_blend_color_state {
  68     /* RV515 and earlier */
  69     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  70     /* R520 and newer */
  71     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  72     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  73 };
  74
  75 struct r300_dsa_state {
  76     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  77     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  78     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  79     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  80     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  81     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  82
  83     /* Whether a two-sided stencil is enabled. */
  84     boolean two_sided;
  85     /* Whether a fallback should be used for a two-sided stencil ref value. */
  86     boolean stencil_ref_bf_fallback;
  87 };
  88
  89 struct r300_rs_state {
  90     /* Draw-specific rasterizer state */
  91     struct pipe_rasterizer_state rs;
  92
  93     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  94     uint32_t antialiasing_config;   /* R300_GB_AA_CONFIG: 0x4020 */
  95     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  96     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  97     float depth_scale;            /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  98                                   /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  99     float depth_offset;           /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
 100                                   /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
 101     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
 102     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
 103     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
 104     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
 105     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
 106     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
 107 };
 108
 109 struct r300_rs_block {
 110     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
 111     uint32_t count; /* R300_RS_COUNT */
 112     uint32_t inst_count; /* R300_RS_INST_COUNT */
 113     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
 114 };
 115
 116 struct r300_sampler_state {
 117     struct pipe_sampler_state state;
 118
 119     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
 120     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
 121     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
 122
 123     /* Min/max LOD must be clamped to [0, last_level], thus
 124      * it's dependent on a currently bound texture */
 125     unsigned min_lod, max_lod;
 126 };
 127
 128 struct r300_texture_format_state {
 129     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 130     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 131     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 132 };
 133
 134 struct r300_texture_fb_state {
 135     /* Colorbuffer. */
 136     uint32_t colorpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_COLORPITCH[0-3]*/
 137     uint32_t us_out_fmt; /* R300_US_OUT_FMT[0-3] */
 138
 139     /* Zbuffer. */
 140     uint32_t depthpitch[R300_MAX_TEXTURE_LEVELS]; /* R300_RB3D_DEPTHPITCH */
 141     uint32_t zb_format; /* R300_ZB_FORMAT */
 142 };
 143
 144 struct r300_textures_state {
 145     /* Textures. */
 146     struct pipe_sampler_view *fragment_sampler_views[16];
 147     int texture_count;
 148     /* Sampler states. */
 149     struct r300_sampler_state *sampler_states[16];
 150     int sampler_count;
 151
 152     /* These is the merge of the texture and sampler states. */
 153     unsigned count;
 154     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
 155     struct r300_texture_sampler_state {
 156         uint32_t format[3];     /* R300_TX_FORMAT[0-2] */
 157         uint32_t filter[2];     /* R300_TX_FILTER[0-1] */
 158         uint32_t border_color;  /* R300_TX_BORDER_COLOR: 0x45c0 */
 159         uint32_t tile_config;   /* R300_TX_OFFSET (subset thereof) */
 160     } regs[16];
 161 };
 162
 163 struct r300_vertex_stream_state {
 164     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 165     uint32_t vap_prog_stream_cntl[8];
 166     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 167     uint32_t vap_prog_stream_cntl_ext[8];
 168
 169     unsigned count;
 170 };
 171
 172 struct r300_vap_output_state {
 173     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
 174     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
 175     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
 176 };
 177
 178 struct r300_viewport_state {
 179     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 180     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 181     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 182     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 183     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 184     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 185     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 186 };
 187
 188 struct r300_ztop_state {
 189     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 190 };
 191
 192 /* The next several objects are not pure Radeon state; they inherit from
 193  * various Gallium classes. */
 194
 195 struct r300_constant_buffer {
 196     /* Buffer of constants */
 197     float constants[256][4];
 198     /* Total number of constants */
 199     unsigned count;
 200 };
 201
 202 /* Query object.
 203  *
 204  * This is not a subclass of pipe_query because pipe_query is never
 205  * actually fully defined. So, rather than have it as a member, and do
 206  * subclass-style casting, we treat pipe_query as an opaque, and just
 207  * trust that our state tracker does not ever mess up query objects.
 208  */
 209 struct r300_query {
 210     /* The kind of query. Currently only OQ is supported. */
 211     unsigned type;
 212     /* Whether this query is currently active. Only active queries will
 213      * get emitted into the command stream, and only active queries get
 214      * tallied. */
 215     boolean active;
 216     /* The current count of this query. Required to be at least 32 bits. */
 217     unsigned int count;
 218     /* The offset of this query into the query buffer, in bytes. */
 219     unsigned offset;
 220     /* if we've flushed the query */
 221     boolean flushed;
 222     /* if begin has been emitted */
 223     boolean begin_emitted;
 224     /* Linked list members. */
 225     struct r300_query* prev;
 226     struct r300_query* next;
 227 };
 228
 229 struct r300_texture {
 230     /* Parent class */
 231     struct pipe_texture tex;
 232
 233     /* Offsets into the buffer. */
 234     unsigned offset[R300_MAX_TEXTURE_LEVELS];
 235
 236     /* A pitch for each mip-level */
 237     unsigned pitch[R300_MAX_TEXTURE_LEVELS];
 238
 239     /* Size of one zslice or face based on the texture target */
 240     unsigned layer_size[R300_MAX_TEXTURE_LEVELS];
 241
 242     /* Whether the mipmap level is macrotiled. */
 243     enum r300_buffer_tiling mip_macrotile[R300_MAX_TEXTURE_LEVELS];
 244
 245     /**
 246      * If non-zero, override the natural texture layout with
 247      * a custom stride (in bytes).
 248      *
 249      * \note Mipmapping fails for textures with a non-natural layout!
 250      *
 251      * \sa r300_texture_get_stride
 252      */
 253     unsigned stride_override;
 254
 255     /* Total size of this texture, in bytes. */
 256     unsigned size;
 257
 258     /* Whether this texture has non-power-of-two dimensions
 259      * or a user-specified pitch.
 260      * It can be either a regular texture or a rectangle one.
 261      */
 262     boolean uses_pitch;
 263
 264     /* Pipe buffer backing this texture. */
 265     struct r300_winsys_buffer *buffer;
 266
 267     /* Registers carrying texture format data. */
 268     struct r300_texture_format_state state;
 269     struct r300_texture_fb_state fb_state;
 270
 271     /* Buffer tiling */
 272     enum r300_buffer_tiling microtile, macrotile;
 273 };
 274
 275 struct r300_vertex_info {
 276     /* Parent class */
 277     struct vertex_info vinfo;
 278
 279     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 280     uint32_t vap_prog_stream_cntl[8];
 281     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 282     uint32_t vap_prog_stream_cntl_ext[8];
 283 };
 284
 285 struct r300_vertex_element_state {
 286     unsigned count;
 287     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
 288
 289     struct r300_vertex_stream_state vertex_stream;
 290 };
 291
 292 extern struct pipe_viewport_state r300_viewport_identity;
 293
 294 struct r300_context {
 295     /* Parent class */
 296     struct pipe_context context;
 297
 298     /* Emission of drawing packets. */
 299     void (*emit_draw_arrays_immediate)(
 300             struct r300_context *r300,
 301             unsigned mode, unsigned start, unsigned count);
 302
 303     void (*emit_draw_arrays)(
 304             struct r300_context *r300,
 305             unsigned mode, unsigned count);
 306
 307     void (*emit_draw_elements)(
 308             struct r300_context *r300, struct pipe_buffer* indexBuffer,
 309             unsigned indexSize, unsigned minIndex, unsigned maxIndex,
 310             unsigned mode, unsigned start, unsigned count);
 311
 312
 313     /* The interface to the windowing system, etc. */
 314     struct r300_winsys_screen *rws;
 315     /* Screen. */
 316     struct r300_screen *screen;
 317     /* Draw module. Used mostly for SW TCL. */
 318     struct draw_context* draw;
 319     /* Accelerated blit support. */
 320     struct blitter_context* blitter;
 321
 322     /* Vertex buffer for rendering. */
 323     struct pipe_buffer* vbo;
 324     /* Offset into the VBO. */
 325     size_t vbo_offset;
 326
 327     /* Occlusion query buffer. */
 328     struct pipe_buffer* oqbo;
 329     /* Query list. */
 330     struct r300_query *query_current;
 331     struct r300_query query_list;
 332
 333     /* Various CSO state objects. */
 334     /* Beginning of atom list. */
 335     struct r300_atom atom_list;
 336     /* Blend state. */
 337     struct r300_atom blend_state;
 338     /* Blend color state. */
 339     struct r300_atom blend_color_state;
 340     /* User clip planes. */
 341     struct r300_atom clip_state;
 342     /* Shader constants. */
 343     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 344     /* Depth, stencil, and alpha state. */
 345     struct r300_atom dsa_state;
 346     /* Fragment shader. */
 347     struct r300_fragment_shader* fs;
 348     /* Framebuffer state. */
 349     struct r300_atom fb_state;
 350     /* Rasterizer state. */
 351     struct r300_atom rs_state;
 352     /* RS block state. */
 353     struct r300_atom rs_block_state;
 354     /* Scissor state. */
 355     struct r300_atom scissor_state;
 356     /* Textures state. */
 357     struct r300_atom textures_state;
 358     /* Vertex stream formatting state. */
 359     struct r300_atom vertex_stream_state;
 360     /* VAP (vertex shader) output mapping state. */
 361     struct r300_atom vap_output_state;
 362     /* Vertex shader. */
 363     struct r300_atom vs_state;
 364     /* Viewport state. */
 365     struct r300_atom viewport_state;
 366     /* ZTOP state. */
 367     struct r300_atom ztop_state;
 368     /* PVS flush. */
 369     struct r300_atom pvs_flush;
 370     /* Texture cache invalidate. */
 371     struct r300_atom texture_cache_inval;
 372
 373     /* Invariant state. This must be emitted to get the engine started. */
 374     struct r300_atom invariant_state;
 375
 376     /* Vertex buffers for Gallium. */
 377     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 378     int vertex_buffer_count;
 379     int vertex_buffer_max_index;
 380     /* Vertex elements for Gallium. */
 381     struct r300_vertex_element_state *velems;
 382     bool any_user_vbs;
 383
 384     /* Vertex info for Draw. */
 385     struct vertex_info vertex_info;
 386
 387     struct pipe_stencil_ref stencil_ref;
 388
 389     struct pipe_clip_state clip;
 390
 391     struct pipe_viewport_state viewport;
 392
 393     /* Bitmask of dirty state objects. */
 394     uint32_t dirty_state;
 395     /* Flag indicating whether or not the HW is dirty. */
 396     uint32_t dirty_hw;
 397     /* Whether polygon offset is enabled. */
 398     boolean polygon_offset_enabled;
 399     /* Z buffer bit depth. */
 400     uint32_t zbuffer_bpp;
 401     /* Whether scissor is enabled. */
 402     boolean scissor_enabled;
 403     /* Whether rendering is conditional and should be skipped. */
 404     boolean skip_rendering;
 405     /* Whether the two-sided stencil ref value is different for front and
 406      * back faces, and fallback should be used for r3xx-r4xx. */
 407     boolean stencil_ref_bf_fallback;
 408     /* upload managers */
 409     struct u_upload_mgr *upload_vb;
 410     struct u_upload_mgr *upload_ib;
 411 };
 412
 413 /* Convenience cast wrapper. */
 414 static INLINE struct r300_texture* r300_texture(struct pipe_texture* tex)
 415 {
 416     return (struct r300_texture*)tex;
 417 }
 418
 419 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 420 {
 421     return (struct r300_context*)context;
 422 }
 423
 424
 425 struct pipe_context* r300_create_context(struct pipe_screen* screen,
 426                                          void *priv);
 427
 428 /* Context initialization. */
 429 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 430 void r300_init_state_functions(struct r300_context* r300);
 431 void r300_init_surface_functions(struct r300_context* r300);
 432 void r300_init_tex_functions( struct pipe_context *pipe );
 433
 434 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
 435 {
 436     return SCREEN_DBG_ON(ctx->screen, flags);
 437 }
 438
 439 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
 440                        const char * fmt, ...)
 441 {
 442     if (CTX_DBG_ON(ctx, flags)) {
 443         va_list va;
 444         va_start(va, fmt);
 445         vfprintf(stderr, fmt, va);
 446         va_end(va);
 447     }
 448 }
 449
 450 #define DBG_ON  CTX_DBG_ON
 451 #define DBG     CTX_DBG
 452
 453 #endif /* R300_CONTEXT_H */