src/mesa/drivers/dri/i915/i915_context.h

   1  /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef I915CONTEXT_INC
  29 #define I915CONTEXT_INC
  30
  31 #include "intel_context.h"
  32 #include "i915_reg.h"
  33
  34 #define I915_FALLBACK_TEXTURE            0x1000
  35 #define I915_FALLBACK_COLORMASK          0x2000
  36 #define I915_FALLBACK_STENCIL            0x4000
  37 #define I915_FALLBACK_STIPPLE            0x8000
  38 #define I915_FALLBACK_PROGRAM            0x10000
  39 #define I915_FALLBACK_LOGICOP            0x20000
  40 #define I915_FALLBACK_POLYGON_SMOOTH     0x40000
  41 #define I915_FALLBACK_POINT_SMOOTH       0x80000
  42
  43 #define I915_UPLOAD_CTX              0x1
  44 #define I915_UPLOAD_BUFFERS          0x2
  45 #define I915_UPLOAD_STIPPLE          0x4
  46 #define I915_UPLOAD_PROGRAM          0x8
  47 #define I915_UPLOAD_CONSTANTS        0x10
  48 #define I915_UPLOAD_FOG              0x20
  49 #define I915_UPLOAD_INVARIENT        0x40
  50 #define I915_UPLOAD_DEFAULTS         0x80
  51 #define I915_UPLOAD_TEX(i)           (0x00010000<<(i))
  52 #define I915_UPLOAD_TEX_ALL          (0x00ff0000)
  53 #define I915_UPLOAD_TEX_0_SHIFT      16
  54
  55
  56 /* State structure offsets - these will probably disappear.
  57  */
  58 #define I915_DESTREG_CBUFADDR0 0
  59 #define I915_DESTREG_CBUFADDR1 1
  60 #define I915_DESTREG_DBUFADDR0 3
  61 #define I915_DESTREG_DBUFADDR1 4
  62 #define I915_DESTREG_DV0 6
  63 #define I915_DESTREG_DV1 7
  64 #define I915_DESTREG_SENABLE 8
  65 #define I915_DESTREG_SR0 9
  66 #define I915_DESTREG_SR1 10
  67 #define I915_DESTREG_SR2 11
  68 #define I915_DESTREG_DRAWRECT0 12
  69 #define I915_DESTREG_DRAWRECT1 13
  70 #define I915_DESTREG_DRAWRECT2 14
  71 #define I915_DESTREG_DRAWRECT3 15
  72 #define I915_DESTREG_DRAWRECT4 16
  73 #define I915_DESTREG_DRAWRECT5 17
  74 #define I915_DEST_SETUP_SIZE 18
  75
  76 #define I915_CTXREG_STATE4              0
  77 #define I915_CTXREG_LI                  1
  78 #define I915_CTXREG_LIS2                        2
  79 #define I915_CTXREG_LIS4                        3
  80 #define I915_CTXREG_LIS5                        4
  81 #define I915_CTXREG_LIS6                        5
  82 #define I915_CTXREG_IAB                 6
  83 #define I915_CTXREG_BLENDCOLOR0         7
  84 #define I915_CTXREG_BLENDCOLOR1         8
  85 #define I915_CTXREG_BF_STENCIL_OPS      9
  86 #define I915_CTXREG_BF_STENCIL_MASKS    10
  87 #define I915_CTX_SETUP_SIZE             11
  88
  89 #define I915_FOGREG_COLOR               0
  90 #define I915_FOGREG_MODE0               1
  91 #define I915_FOGREG_MODE1               2
  92 #define I915_FOGREG_MODE2               3
  93 #define I915_FOGREG_MODE3               4
  94 #define I915_FOG_SETUP_SIZE             5
  95
  96 #define I915_STPREG_ST0        0
  97 #define I915_STPREG_ST1        1
  98 #define I915_STP_SETUP_SIZE    2
  99
 100 #define I915_TEXREG_MS3        1
 101 #define I915_TEXREG_MS4        2
 102 #define I915_TEXREG_SS2        3
 103 #define I915_TEXREG_SS3        4
 104 #define I915_TEXREG_SS4        5
 105 #define I915_TEX_SETUP_SIZE    6
 106
 107 #define I915_DEFREG_C0    0
 108 #define I915_DEFREG_C1    1
 109 #define I915_DEFREG_S0    2
 110 #define I915_DEFREG_S1    3
 111 #define I915_DEFREG_Z0    4
 112 #define I915_DEFREG_Z1    5
 113 #define I915_DEF_SETUP_SIZE    6
 114
 115
 116 #define I915_MAX_CONSTANT      32
 117 #define I915_CONSTANT_SIZE     (2+(4*I915_MAX_CONSTANT))
 118
 119
 120 #define I915_PROGRAM_SIZE      192
 121
 122 #define I915_MAX_INSN          (I915_MAX_TEX_INSN+I915_MAX_ALU_INSN)
 123
 124 /* Hardware version of a parsed fragment program.  "Derived" from the
 125  * mesa fragment_program struct.
 126  */
 127 struct i915_fragment_program
 128 {
 129    struct gl_fragment_program FragProg;
 130
 131    GLboolean translated;
 132    GLboolean params_uptodate;
 133    GLboolean on_hardware;
 134    GLboolean error;             /* If program is malformed for any reason. */
 135
 136    /** Record of which phases R registers were last written in. */
 137    GLuint register_phases[16];
 138    GLuint indirections;
 139    GLuint nr_tex_indirect;
 140    GLuint nr_tex_insn;
 141    GLuint nr_alu_insn;
 142    GLuint nr_decl_insn;
 143
 144
 145
 146
 147    /* TODO: split between the stored representation of a program and
 148     * the state used to build that representation.
 149     */
 150    GLcontext *ctx;
 151
 152    GLuint declarations[I915_PROGRAM_SIZE];
 153    GLuint program[I915_PROGRAM_SIZE];
 154
 155    GLfloat constant[I915_MAX_CONSTANT][4];
 156    GLuint constant_flags[I915_MAX_CONSTANT];
 157    GLuint nr_constants;
 158
 159    GLuint *csr;                 /* Cursor, points into program.
 160                                  */
 161
 162    GLuint *decl;                /* Cursor, points into declarations.
 163                                  */
 164
 165    GLuint decl_s;               /* flags for which s regs need to be decl'd */
 166    GLuint decl_t;               /* flags for which t regs need to be decl'd */
 167
 168    GLuint temp_flag;            /* Tracks temporary regs which are in
 169                                  * use.
 170                                  */
 171
 172    GLuint utemp_flag;           /* Tracks TYPE_U temporary regs which are in
 173                                  * use.
 174                                  */
 175
 176
 177    /* Track which R registers are "live" for each instruction.
 178     * A register is live between the time it's written to and the last time
 179     * it's read. */
 180    GLuint usedRegs[I915_MAX_INSN];
 181
 182    /* Helpers for i915_fragprog.c:
 183     */
 184    GLuint wpos_tex;
 185    GLboolean depth_written;
 186
 187    struct
 188    {
 189       GLuint reg;               /* Hardware constant idx */
 190       const GLfloat *values;    /* Pointer to tracked values */
 191    } param[I915_MAX_CONSTANT];
 192    GLuint nr_params;
 193 };
 194
 195
 196
 197
 198
 199
 200
 201 #define I915_TEX_UNITS 8
 202
 203
 204 struct i915_hw_state
 205 {
 206    GLuint Ctx[I915_CTX_SETUP_SIZE];
 207    GLuint Buffer[I915_DEST_SETUP_SIZE];
 208    GLuint Stipple[I915_STP_SETUP_SIZE];
 209    GLuint Fog[I915_FOG_SETUP_SIZE];
 210    GLuint Defaults[I915_DEF_SETUP_SIZE];
 211    GLuint Tex[I915_TEX_UNITS][I915_TEX_SETUP_SIZE];
 212    GLuint Constant[I915_CONSTANT_SIZE];
 213    GLuint ConstantSize;
 214    GLuint Program[I915_PROGRAM_SIZE];
 215    GLuint ProgramSize;
 216
 217    /* Region pointers for relocation:
 218     */
 219    struct intel_region *draw_region;
 220    struct intel_region *depth_region;
 221 /*    struct intel_region *tex_region[I915_TEX_UNITS]; */
 222
 223    /* Regions aren't actually that appropriate here as the memory may
 224     * be from a PBO or FBO.  Will have to do this for draw and depth for
 225     * FBO's...
 226     */
 227    dri_bo *tex_buffer[I915_TEX_UNITS];
 228    GLuint tex_offset[I915_TEX_UNITS];
 229
 230
 231    GLuint active;               /* I915_UPLOAD_* */
 232    GLuint emitted;              /* I915_UPLOAD_* */
 233 };
 234
 235 #define I915_FOG_PIXEL  2
 236 #define I915_FOG_VERTEX 1
 237 #define I915_FOG_NONE   0
 238
 239 struct i915_context
 240 {
 241    struct intel_context intel;
 242
 243    GLuint last_ReallyEnabled;
 244    GLuint vertex_fog;
 245    GLuint lodbias_ss2[MAX_TEXTURE_UNITS];
 246
 247
 248    struct i915_fragment_program *current_program;
 249
 250    struct i915_hw_state meta, initial, state, *current;
 251 };
 252
 253
 254 #define I915_STATECHANGE(i915, flag)                                    \
 255 do {                                                                    \
 256    INTEL_FIREVERTICES( &(i915)->intel );                                        \
 257    (i915)->state.emitted &= ~(flag);                                    \
 258 } while (0)
 259
 260 #define I915_ACTIVESTATE(i915, flag, mode)                      \
 261 do {                                                            \
 262    INTEL_FIREVERTICES( &(i915)->intel );                                \
 263    if (mode)                                                    \
 264       (i915)->state.active |= (flag);                           \
 265    else                                                         \
 266       (i915)->state.active &= ~(flag);                          \
 267 } while (0)
 268
 269
 270 /*======================================================================
 271  * i915_vtbl.c
 272  */
 273 extern void i915InitVtbl(struct i915_context *i915);
 274
 275 extern void
 276 i915_state_draw_region(struct intel_context *intel,
 277                        struct i915_hw_state *state,
 278                        struct intel_region *color_region,
 279                        struct intel_region *depth_region);
 280
 281
 282
 283 #define SZ_TO_HW(sz)  ((sz-2)&0x3)
 284 #define EMIT_SZ(sz)   (EMIT_1F + (sz) - 1)
 285 #define EMIT_ATTR( ATTR, STYLE, S4, SZ )                                \
 286 do {                                                                    \
 287    intel->vertex_attrs[intel->vertex_attr_count].attrib = (ATTR);       \
 288    intel->vertex_attrs[intel->vertex_attr_count].format = (STYLE);      \
 289    s4 |= S4;                                                            \
 290    intel->vertex_attr_count++;                                          \
 291    offset += (SZ);                                                      \
 292 } while (0)
 293
 294 #define EMIT_PAD( N )                                                   \
 295 do {                                                                    \
 296    intel->vertex_attrs[intel->vertex_attr_count].attrib = 0;            \
 297    intel->vertex_attrs[intel->vertex_attr_count].format = EMIT_PAD;     \
 298    intel->vertex_attrs[intel->vertex_attr_count].offset = (N);          \
 299    intel->vertex_attr_count++;                                          \
 300    offset += (N);                                                       \
 301 } while (0)
 302
 303
 304
 305 /*======================================================================
 306  * i915_context.c
 307  */
 308 extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,
 309                                    __DRIcontextPrivate * driContextPriv,
 310                                    void *sharedContextPrivate);
 311
 312
 313 /*======================================================================
 314  * i915_debug.c
 315  */
 316 extern void i915_disassemble_program(const GLuint * program, GLuint sz);
 317 extern void i915_print_ureg(const char *msg, GLuint ureg);
 318
 319
 320 /*======================================================================
 321  * i915_state.c
 322  */
 323 extern void i915InitStateFunctions(struct dd_function_table *functions);
 324 extern void i915InitState(struct i915_context *i915);
 325 extern void i915_update_fog(GLcontext * ctx);
 326 extern void i915_update_stencil(GLcontext * ctx);
 327
 328
 329 /*======================================================================
 330  * i915_tex.c
 331  */
 332 extern void i915UpdateTextureState(struct intel_context *intel);
 333 extern void i915InitTextureFuncs(struct dd_function_table *functions);
 334
 335 /*======================================================================
 336  * i915_metaops.c
 337  */
 338 void i915InitMetaFuncs(struct i915_context *i915);
 339
 340
 341 /*======================================================================
 342  * i915_fragprog.c
 343  */
 344 extern void i915ValidateFragmentProgram(struct i915_context *i915);
 345 extern void i915InitFragProgFuncs(struct dd_function_table *functions);
 346
 347 /*======================================================================
 348  * Inline conversion functions.  These are better-typed than the
 349  * macros used previously:
 350  */
 351 static INLINE struct i915_context *
 352 i915_context(GLcontext * ctx)
 353 {
 354    return (struct i915_context *) ctx;
 355 }
 356
 357
 358
 359 #define I915_CONTEXT(ctx)       i915_context(ctx)
 360
 361
 362
 363 #endif