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_DEST_SETUP_SIZE 12
  69
  70 #define I915_CTXREG_STATE4              0
  71 #define I915_CTXREG_LI                  1
  72 #define I915_CTXREG_LIS2                        2
  73 #define I915_CTXREG_LIS4                        3
  74 #define I915_CTXREG_LIS5                        4
  75 #define I915_CTXREG_LIS6                        5
  76 #define I915_CTXREG_IAB                 6
  77 #define I915_CTXREG_BLENDCOLOR0         7
  78 #define I915_CTXREG_BLENDCOLOR1         8
  79 #define I915_CTX_SETUP_SIZE             9
  80
  81 #define I915_FOGREG_COLOR               0
  82 #define I915_FOGREG_MODE0               1
  83 #define I915_FOGREG_MODE1               2
  84 #define I915_FOGREG_MODE2               3
  85 #define I915_FOGREG_MODE3               4
  86 #define I915_FOG_SETUP_SIZE             5
  87
  88 #define I915_STPREG_ST0        0
  89 #define I915_STPREG_ST1        1
  90 #define I915_STP_SETUP_SIZE    2
  91
  92 #define I915_TEXREG_MS3        1
  93 #define I915_TEXREG_MS4        2
  94 #define I915_TEXREG_SS2        3
  95 #define I915_TEXREG_SS3        4
  96 #define I915_TEXREG_SS4        5
  97 #define I915_TEX_SETUP_SIZE    6
  98
  99 #define I915_DEFREG_C0    0
 100 #define I915_DEFREG_C1    1
 101 #define I915_DEFREG_S0    2
 102 #define I915_DEFREG_S1    3
 103 #define I915_DEFREG_Z0    4
 104 #define I915_DEFREG_Z1    5
 105 #define I915_DEF_SETUP_SIZE    6
 106
 107
 108 #define I915_MAX_CONSTANT      32
 109 #define I915_CONSTANT_SIZE     (2+(4*I915_MAX_CONSTANT))
 110
 111
 112 #define I915_PROGRAM_SIZE      192
 113
 114 #define I915_MAX_INSN          (I915_MAX_TEX_INSN+I915_MAX_ALU_INSN)
 115
 116 /* Hardware version of a parsed fragment program.  "Derived" from the
 117  * mesa fragment_program struct.
 118  */
 119 struct i915_fragment_program
 120 {
 121    struct gl_fragment_program FragProg;
 122
 123    GLboolean translated;
 124    GLboolean params_uptodate;
 125    GLboolean on_hardware;
 126    GLboolean error;             /* If program is malformed for any reason. */
 127
 128    GLuint nr_tex_indirect;
 129    GLuint nr_tex_insn;
 130    GLuint nr_alu_insn;
 131    GLuint nr_decl_insn;
 132
 133
 134
 135
 136    /* TODO: split between the stored representation of a program and
 137     * the state used to build that representation.
 138     */
 139    GLcontext *ctx;
 140
 141    GLuint declarations[I915_PROGRAM_SIZE];
 142    GLuint program[I915_PROGRAM_SIZE];
 143
 144    GLfloat constant[I915_MAX_CONSTANT][4];
 145    GLuint constant_flags[I915_MAX_CONSTANT];
 146    GLuint nr_constants;
 147
 148    GLuint *csr;                 /* Cursor, points into program.
 149                                  */
 150
 151    GLuint *decl;                /* Cursor, points into declarations.
 152                                  */
 153
 154    GLuint decl_s;               /* flags for which s regs need to be decl'd */
 155    GLuint decl_t;               /* flags for which t regs need to be decl'd */
 156
 157    GLuint temp_flag;            /* Tracks temporary regs which are in
 158                                  * use.
 159                                  */
 160
 161    GLuint utemp_flag;           /* Tracks TYPE_U temporary regs which are in
 162                                  * use.
 163                                  */
 164
 165
 166    /* Track which R registers are "live" for each instruction.
 167     * A register is live between the time it's written to and the last time
 168     * it's read. */
 169    GLuint usedRegs[I915_MAX_INSN];
 170
 171    /* Helpers for i915_fragprog.c:
 172     */
 173    GLuint wpos_tex;
 174    GLboolean depth_written;
 175
 176    struct
 177    {
 178       GLuint reg;               /* Hardware constant idx */
 179       const GLfloat *values;    /* Pointer to tracked values */
 180    } param[I915_MAX_CONSTANT];
 181    GLuint nr_params;
 182 };
 183
 184
 185
 186
 187
 188
 189
 190 #define I915_TEX_UNITS 8
 191
 192
 193 struct i915_hw_state
 194 {
 195    GLuint Ctx[I915_CTX_SETUP_SIZE];
 196    GLuint Buffer[I915_DEST_SETUP_SIZE];
 197    GLuint Stipple[I915_STP_SETUP_SIZE];
 198    GLuint Fog[I915_FOG_SETUP_SIZE];
 199    GLuint Defaults[I915_DEF_SETUP_SIZE];
 200    GLuint Tex[I915_TEX_UNITS][I915_TEX_SETUP_SIZE];
 201    GLuint Constant[I915_CONSTANT_SIZE];
 202    GLuint ConstantSize;
 203    GLuint Program[I915_PROGRAM_SIZE];
 204    GLuint ProgramSize;
 205
 206    /* Region pointers for relocation:
 207     */
 208    struct intel_region *draw_region;
 209    struct intel_region *depth_region;
 210 /*    struct intel_region *tex_region[I915_TEX_UNITS]; */
 211
 212    /* Regions aren't actually that appropriate here as the memory may
 213     * be from a PBO or FBO.  Will have to do this for draw and depth for
 214     * FBO's...
 215     */
 216    dri_bo *tex_buffer[I915_TEX_UNITS];
 217    GLuint tex_offset[I915_TEX_UNITS];
 218
 219
 220    GLuint active;               /* I915_UPLOAD_* */
 221    GLuint emitted;              /* I915_UPLOAD_* */
 222 };
 223
 224 #define I915_FOG_PIXEL  2
 225 #define I915_FOG_VERTEX 1
 226 #define I915_FOG_NONE   0
 227
 228 struct i915_context
 229 {
 230    struct intel_context intel;
 231
 232    GLuint last_ReallyEnabled;
 233    GLuint vertex_fog;
 234    GLuint lodbias_ss2[MAX_TEXTURE_UNITS];
 235
 236
 237    struct i915_fragment_program *current_program;
 238
 239    struct i915_hw_state meta, initial, state, *current;
 240 };
 241
 242
 243 #define I915_STATECHANGE(i915, flag)                                    \
 244 do {                                                                    \
 245    INTEL_FIREVERTICES( &(i915)->intel );                                        \
 246    (i915)->state.emitted &= ~(flag);                                    \
 247 } while (0)
 248
 249 #define I915_ACTIVESTATE(i915, flag, mode)                      \
 250 do {                                                            \
 251    INTEL_FIREVERTICES( &(i915)->intel );                                \
 252    if (mode)                                                    \
 253       (i915)->state.active |= (flag);                           \
 254    else                                                         \
 255       (i915)->state.active &= ~(flag);                          \
 256 } while (0)
 257
 258
 259 /*======================================================================
 260  * i915_vtbl.c
 261  */
 262 extern void i915InitVtbl(struct i915_context *i915);
 263
 264 extern void
 265 i915_state_draw_region(struct intel_context *intel,
 266                        struct i915_hw_state *state,
 267                        struct intel_region *color_region,
 268                        struct intel_region *depth_region);
 269
 270
 271
 272 #define SZ_TO_HW(sz)  ((sz-2)&0x3)
 273 #define EMIT_SZ(sz)   (EMIT_1F + (sz) - 1)
 274 #define EMIT_ATTR( ATTR, STYLE, S4, SZ )                                \
 275 do {                                                                    \
 276    intel->vertex_attrs[intel->vertex_attr_count].attrib = (ATTR);       \
 277    intel->vertex_attrs[intel->vertex_attr_count].format = (STYLE);      \
 278    s4 |= S4;                                                            \
 279    intel->vertex_attr_count++;                                          \
 280    offset += (SZ);                                                      \
 281 } while (0)
 282
 283 #define EMIT_PAD( N )                                                   \
 284 do {                                                                    \
 285    intel->vertex_attrs[intel->vertex_attr_count].attrib = 0;            \
 286    intel->vertex_attrs[intel->vertex_attr_count].format = EMIT_PAD;     \
 287    intel->vertex_attrs[intel->vertex_attr_count].offset = (N);          \
 288    intel->vertex_attr_count++;                                          \
 289    offset += (N);                                                       \
 290 } while (0)
 291
 292
 293
 294 /*======================================================================
 295  * i915_context.c
 296  */
 297 extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,
 298                                    __DRIcontextPrivate * driContextPriv,
 299                                    void *sharedContextPrivate);
 300
 301
 302 /*======================================================================
 303  * i915_debug.c
 304  */
 305 extern void i915_disassemble_program(const GLuint * program, GLuint sz);
 306 extern void i915_print_ureg(const char *msg, GLuint ureg);
 307
 308
 309 /*======================================================================
 310  * i915_state.c
 311  */
 312 extern void i915InitStateFunctions(struct dd_function_table *functions);
 313 extern void i915InitState(struct i915_context *i915);
 314 extern void i915_update_fog(GLcontext * ctx);
 315
 316
 317 /*======================================================================
 318  * i915_tex.c
 319  */
 320 extern void i915UpdateTextureState(struct intel_context *intel);
 321 extern void i915InitTextureFuncs(struct dd_function_table *functions);
 322
 323 /*======================================================================
 324  * i915_metaops.c
 325  */
 326 void i915InitMetaFuncs(struct i915_context *i915);
 327
 328
 329 /*======================================================================
 330  * i915_fragprog.c
 331  */
 332 extern void i915ValidateFragmentProgram(struct i915_context *i915);
 333 extern void i915InitFragProgFuncs(struct dd_function_table *functions);
 334
 335 /*======================================================================
 336  * Inline conversion functions.  These are better-typed than the
 337  * macros used previously:
 338  */
 339 static INLINE struct i915_context *
 340 i915_context(GLcontext * ctx)
 341 {
 342    return (struct i915_context *) ctx;
 343 }
 344
 345
 346
 347 #define I915_CONTEXT(ctx)       i915_context(ctx)
 348
 349
 350
 351 #endif