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 "pipe/p_context.h"
  29 #include "pipe/p_inlines.h"
  30
  31 struct r300_fragment_shader;
  32 struct r300_vertex_shader;
  33
  34 struct r300_blend_state {
  35     uint32_t blend_control;       /* R300_RB3D_CBLEND: 0x4e04 */
  36     uint32_t alpha_blend_control; /* R300_RB3D_ABLEND: 0x4e08 */
  37     uint32_t color_channel_mask;  /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
  38     uint32_t rop;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
  39     uint32_t dither;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
  40 };
  41
  42 struct r300_blend_color_state {
  43     /* RV515 and earlier */
  44     uint32_t blend_color;            /* R300_RB3D_BLEND_COLOR: 0x4e10 */
  45     /* R520 and newer */
  46     uint32_t blend_color_red_alpha;  /* R500_RB3D_CONSTANT_COLOR_AR: 0x4ef8 */
  47     uint32_t blend_color_green_blue; /* R500_RB3D_CONSTANT_COLOR_GB: 0x4efc */
  48 };
  49
  50 struct r300_dsa_state {
  51     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
  52     uint32_t alpha_reference;   /* R500_FG_ALPHA_VALUE: 0x4be0 */
  53     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
  54     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
  55     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
  56     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
  57 };
  58
  59 struct r300_rs_state {
  60     /* Draw-specific rasterizer state */
  61     struct pipe_rasterizer_state rs;
  62
  63     /* Whether or not to enable the VTE. This is referenced at the very
  64      * last moment during emission of VTE state, to decide whether or not
  65      * the VTE should be used for transformation. */
  66     boolean enable_vte;
  67
  68     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
  69     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
  70     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
  71     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
  72     uint32_t depth_scale_front;  /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */
  73     uint32_t depth_offset_front;/* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */
  74     uint32_t depth_scale_back;    /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */
  75     uint32_t depth_offset_back;  /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */
  76     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
  77     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
  78     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
  79     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
  80     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
  81     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
  82 };
  83
  84 struct r300_rs_block {
  85     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
  86     uint32_t count; /* R300_RS_COUNT */
  87     uint32_t inst_count; /* R300_RS_INST_COUNT */
  88     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
  89 };
  90
  91 struct r300_sampler_state {
  92     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
  93     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
  94     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
  95
  96     /* Min/max LOD must be clamped to [0, last_level], thus
  97      * it's dependent on a currently bound texture */
  98     unsigned min_lod, max_lod;
  99 };
 100
 101 struct r300_scissor_state {
 102     uint32_t scissor_top_left;     /* R300_SC_SCISSORS_TL: 0x43e0 */
 103     uint32_t scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
 104     uint32_t no_scissor_top_left;     /* R300_SC_SCISSORS_TL: 0x43e0 */
 105     uint32_t no_scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */
 106 };
 107
 108 struct r300_texture_state {
 109     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
 110     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
 111     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
 112 };
 113
 114 struct r300_viewport_state {
 115     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
 116     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
 117     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
 118     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
 119     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
 120     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
 121     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
 122 };
 123
 124 struct r300_ztop_state {
 125     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
 126 };
 127
 128 #define R300_NEW_BLEND           0x00000001
 129 #define R300_NEW_BLEND_COLOR     0x00000002
 130 #define R300_NEW_CLIP            0x00000004
 131 #define R300_NEW_DSA             0x00000008
 132 #define R300_NEW_FRAMEBUFFERS    0x00000010
 133 #define R300_NEW_FRAGMENT_SHADER 0x00000020
 134 #define R300_NEW_FRAGMENT_SHADER_CONSTANTS    0x00000040
 135 #define R300_NEW_RASTERIZER      0x00000080
 136 #define R300_NEW_RS_BLOCK        0x00000100
 137 #define R300_NEW_SAMPLER         0x00000200
 138 #define R300_ANY_NEW_SAMPLERS    0x0001fe00
 139 #define R300_NEW_SCISSOR         0x00020000
 140 #define R300_NEW_TEXTURE         0x00040000
 141 #define R300_ANY_NEW_TEXTURES    0x03fc0000
 142 #define R300_NEW_VERTEX_FORMAT   0x04000000
 143 #define R300_NEW_VERTEX_SHADER   0x08000000
 144 #define R300_NEW_VERTEX_SHADER_CONSTANTS    0x10000000
 145 #define R300_NEW_VIEWPORT        0x20000000
 146 #define R300_NEW_QUERY           0x40000000
 147 #define R300_NEW_KITCHEN_SINK    0x7fffffff
 148
 149 /* The next several objects are not pure Radeon state; they inherit from
 150  * various Gallium classes. */
 151
 152 struct r300_constant_buffer {
 153     /* Buffer of constants */
 154     /* XXX first number should be raised */
 155     float constants[32][4];
 156     /* Total number of constants */
 157     unsigned count;
 158 };
 159
 160 /* Query object.
 161  *
 162  * This is not a subclass of pipe_query because pipe_query is never
 163  * actually fully defined. So, rather than have it as a member, and do
 164  * subclass-style casting, we treat pipe_query as an opaque, and just
 165  * trust that our state tracker does not ever mess up query objects.
 166  */
 167 struct r300_query {
 168     /* The kind of query. Currently only OQ is supported. */
 169     unsigned type;
 170     /* Whether this query is currently active. Only active queries will
 171      * get emitted into the command stream, and only active queries get
 172      * tallied. */
 173     boolean active;
 174     /* The current count of this query. Required to be at least 32 bits. */
 175     unsigned int count;
 176     /* The offset of this query into the query buffer, in bytes. */
 177     unsigned offset;
 178     /* if we've flushed the query */
 179     boolean flushed;
 180     /* if begin has been emitted */
 181     boolean begin_emitted;
 182     /* Linked list members. */
 183     struct r300_query* prev;
 184     struct r300_query* next;
 185 };
 186
 187 struct r300_texture {
 188     /* Parent class */
 189     struct pipe_texture tex;
 190
 191     /* Offsets into the buffer. */
 192     unsigned offset[PIPE_MAX_TEXTURE_LEVELS];
 193
 194     /* A pitch for each mip-level */
 195     unsigned pitch[PIPE_MAX_TEXTURE_LEVELS];
 196
 197     /* Size of one zslice or face based on the texture target */
 198     unsigned layer_size[PIPE_MAX_TEXTURE_LEVELS];
 199
 200     /**
 201      * If non-zero, override the natural texture layout with
 202      * a custom stride (in bytes).
 203      *
 204      * \note Mipmapping fails for textures with a non-natural layout!
 205      *
 206      * \sa r300_texture_get_stride
 207      */
 208     unsigned stride_override;
 209
 210     /* Total size of this texture, in bytes. */
 211     unsigned size;
 212
 213     /* Whether this texture has non-power-of-two dimensions.
 214      * It can be either a regular texture or a rectangle one.
 215      */
 216     boolean is_npot;
 217
 218     /* Pipe buffer backing this texture. */
 219     struct pipe_buffer* buffer;
 220
 221     /* Registers carrying texture format data. */
 222     struct r300_texture_state state;
 223 };
 224
 225 struct r300_vertex_info {
 226     /* Parent class */
 227     struct vertex_info vinfo;
 228
 229     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
 230     uint32_t vap_prog_stream_cntl[8];
 231     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
 232     uint32_t vap_prog_stream_cntl_ext[8];
 233 };
 234
 235 extern struct pipe_viewport_state r300_viewport_identity;
 236
 237 struct r300_context {
 238     /* Parent class */
 239     struct pipe_context context;
 240
 241     /* The interface to the windowing system, etc. */
 242     struct radeon_winsys* winsys;
 243     /* Draw module. Used mostly for SW TCL. */
 244     struct draw_context* draw;
 245
 246     /* Vertex buffer for rendering. */
 247     struct pipe_buffer* vbo;
 248     /* Offset into the VBO. */
 249     size_t vbo_offset;
 250
 251     /* Occlusion query buffer. */
 252     struct pipe_buffer* oqbo;
 253     /* Query list. */
 254     struct r300_query *query_current;
 255     struct r300_query query_list;
 256
 257     /* Shader hash table. Used to store vertex formatting information, which
 258      * depends on the combination of both currently loaded shaders. */
 259     struct util_hash_table* shader_hash_table;
 260     /* Vertex formatting information. */
 261     struct r300_vertex_info* vertex_info;
 262
 263     /* Various CSO state objects. */
 264     /* Blend state. */
 265     struct r300_blend_state* blend_state;
 266     /* Blend color state. */
 267     struct r300_blend_color_state* blend_color_state;
 268     /* User clip planes. */
 269     struct pipe_clip_state clip_state;
 270     /* Shader constants. */
 271     struct r300_constant_buffer shader_constants[PIPE_SHADER_TYPES];
 272     /* Depth, stencil, and alpha state. */
 273     struct r300_dsa_state* dsa_state;
 274     /* Fragment shader. */
 275     struct r300_fragment_shader* fs;
 276     /* Framebuffer state. We currently don't need our own version of this. */
 277     struct pipe_framebuffer_state framebuffer_state;
 278     /* Rasterizer state. */
 279     struct r300_rs_state* rs_state;
 280     /* RS block state. */
 281     struct r300_rs_block* rs_block;
 282     /* Sampler states. */
 283     struct r300_sampler_state* sampler_states[8];
 284     int sampler_count;
 285     /* Scissor state. */
 286     struct r300_scissor_state* scissor_state;
 287     /* Texture states. */
 288     struct r300_texture* textures[8];
 289     int texture_count;
 290     /* Vertex shader. */
 291     struct r300_vertex_shader* vs;
 292     /* Viewport state. */
 293     struct r300_viewport_state* viewport_state;
 294     /* ZTOP state. */
 295     struct r300_ztop_state ztop_state;
 296
 297     /* Vertex buffers for Gallium. */
 298     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
 299     int vertex_buffer_count;
 300     /* Vertex elements for Gallium. */
 301     struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
 302     int vertex_element_count;
 303
 304     /* Bitmask of dirty state objects. */
 305     uint32_t dirty_state;
 306     /* Flag indicating whether or not the HW is dirty. */
 307     uint32_t dirty_hw;
 308
 309     /** Combination of DBG_xxx flags */
 310     unsigned debug;
 311 };
 312
 313 /* Convenience cast wrapper. */
 314 static INLINE struct r300_context* r300_context(struct pipe_context* context)
 315 {
 316     return (struct r300_context*)context;
 317 }
 318
 319 /* Context initialization. */
 320 struct draw_stage* r300_draw_stage(struct r300_context* r300);
 321 void r300_init_state_functions(struct r300_context* r300);
 322 void r300_init_surface_functions(struct r300_context* r300);
 323
 324 /* Debug functionality. */
 325
 326 /**
 327  * Debug flags to disable/enable certain groups of debugging outputs.
 328  *
 329  * \note These may be rather coarse, and the grouping may be impractical.
 330  * If you find, while debugging the driver, that a different grouping
 331  * of these flags would be beneficial, just feel free to change them
 332  * but make sure to update the documentation in r300_debug.c to reflect
 333  * those changes.
 334  */
 335 /*@{*/
 336 #define DBG_HELP    0x0000001
 337 #define DBG_FP      0x0000002
 338 #define DBG_VP      0x0000004
 339 #define DBG_CS      0x0000008
 340 #define DBG_DRAW    0x0000010
 341 #define DBG_TEX     0x0000020
 342 #define DBG_FALL    0x0000040
 343 /*@}*/
 344
 345 static INLINE boolean DBG_ON(struct r300_context * ctx, unsigned flags)
 346 {
 347     return (ctx->debug & flags) ? TRUE : FALSE;
 348 }
 349
 350 static INLINE void DBG(struct r300_context * ctx, unsigned flags, const char * fmt, ...)
 351 {
 352     if (DBG_ON(ctx, flags)) {
 353         va_list va;
 354         va_start(va, fmt);
 355         debug_vprintf(fmt, va);
 356         va_end(va);
 357     }
 358 }
 359
 360 void r300_init_debug(struct r300_context * ctx);
 361
 362 #endif /* R300_CONTEXT_H */