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
  33 #define I915_FALLBACK_TEXTURE            0x1000
  34 #define I915_FALLBACK_COLORMASK          0x2000
  35 #define I915_FALLBACK_STENCIL            0x4000
  36 #define I915_FALLBACK_STIPPLE            0x8000
  37 #define I915_FALLBACK_PROGRAM            0x10000
  38 #define I915_FALLBACK_LOGICOP            0x20000
  39
  40 #define I915_UPLOAD_CTX              0x1
  41 #define I915_UPLOAD_BUFFERS          0x2
  42 #define I915_UPLOAD_STIPPLE          0x4
  43 #define I915_UPLOAD_PROGRAM          0x8
  44 #define I915_UPLOAD_CONSTANTS        0x10
  45 #define I915_UPLOAD_FOG              0x20
  46 #define I915_UPLOAD_TEX(i)           (0x00010000<<(i))
  47 #define I915_UPLOAD_TEX_ALL          (0x00ff0000)
  48 #define I915_UPLOAD_TEX_0_SHIFT      16
  49
  50
  51 /* State structure offsets - these will probably disappear.
  52  */
  53 #define I915_DESTREG_CBUFADDR0 0
  54 #define I915_DESTREG_CBUFADDR1 1
  55 #define I915_DESTREG_CBUFADDR2 2
  56 #define I915_DESTREG_DBUFADDR0 3
  57 #define I915_DESTREG_DBUFADDR1 4
  58 #define I915_DESTREG_DBUFADDR2 5
  59 #define I915_DESTREG_DV0 6
  60 #define I915_DESTREG_DV1 7
  61 #define I915_DESTREG_SENABLE 8
  62 #define I915_DESTREG_SR0 9
  63 #define I915_DESTREG_SR1 10
  64 #define I915_DESTREG_SR2 11
  65 #define I915_DEST_SETUP_SIZE 12
  66
  67 #define I915_CTXREG_STATE4              0
  68 #define I915_CTXREG_LI                  1
  69 #define I915_CTXREG_LIS2                        2
  70 #define I915_CTXREG_LIS4                        3
  71 #define I915_CTXREG_LIS5                        4
  72 #define I915_CTXREG_LIS6                        5
  73 #define I915_CTXREG_IAB                 6
  74 #define I915_CTXREG_BLENDCOLOR0         7
  75 #define I915_CTXREG_BLENDCOLOR1         8
  76 #define I915_CTX_SETUP_SIZE             9
  77
  78 #define I915_FOGREG_COLOR               0
  79 #define I915_FOGREG_MODE0               1
  80 #define I915_FOGREG_MODE1               2
  81 #define I915_FOGREG_MODE2               3
  82 #define I915_FOGREG_MODE3               4
  83 #define I915_FOG_SETUP_SIZE             5
  84
  85 #define I915_STPREG_ST0        0
  86 #define I915_STPREG_ST1        1
  87 #define I915_STP_SETUP_SIZE    2
  88
  89 #define I915_TEXREG_MS2        0
  90 #define I915_TEXREG_MS3        1
  91 #define I915_TEXREG_MS4        2
  92 #define I915_TEXREG_SS2        3
  93 #define I915_TEXREG_SS3        4
  94 #define I915_TEXREG_SS4        5
  95 #define I915_TEX_SETUP_SIZE    6
  96
  97 #define I915_MAX_CONSTANT      32
  98 #define I915_CONSTANT_SIZE     (2+(4*I915_MAX_CONSTANT))
  99
 100
 101 #define I915_PROGRAM_SIZE      192
 102
 103
 104 /* Hardware version of a parsed fragment program.  "Derived" from the
 105  * mesa fragment_program struct.
 106  */
 107 struct i915_fragment_program {
 108    struct fragment_program FragProg;
 109
 110    GLboolean translated;
 111    GLboolean params_uptodate;
 112    GLboolean on_hardware;
 113    GLboolean error;             /* If program is malformed for any reason. */
 114
 115    GLuint nr_tex_indirect;
 116    GLuint nr_tex_insn;
 117    GLuint nr_alu_insn;
 118    GLuint nr_decl_insn;
 119
 120
 121
 122
 123    /* TODO: split between the stored representation of a program and
 124     * the state used to build that representation.
 125     */
 126    GLcontext *ctx;
 127
 128    GLuint declarations[I915_PROGRAM_SIZE];
 129    GLuint program[I915_PROGRAM_SIZE];
 130
 131    GLfloat constant[I915_MAX_CONSTANT][4];
 132    GLuint constant_flags[I915_MAX_CONSTANT];
 133    GLuint nr_constants;
 134
 135    GLuint *csr;                 /* Cursor, points into program.
 136                                  */
 137
 138    GLuint *decl;                /* Cursor, points into declarations.
 139                                  */
 140
 141    GLuint decl_s;               /* flags for which s regs need to be decl'd */
 142    GLuint decl_t;               /* flags for which t regs need to be decl'd */
 143
 144    GLuint temp_flag;            /* Tracks temporary regs which are in
 145                                  * use.
 146                                  */
 147
 148    GLuint utemp_flag;           /* Tracks TYPE_U temporary regs which are in
 149                                  * use.
 150                                  */
 151
 152
 153
 154    /* Helpers for i915_fragprog.c:
 155     */
 156    GLuint wpos_tex;
 157    GLboolean depth_written;
 158
 159    struct {
 160       GLuint reg;               /* Hardware constant idx */
 161       const GLfloat *values;    /* Pointer to tracked values */
 162    } param[I915_MAX_CONSTANT];
 163    GLuint nr_params;
 164
 165
 166
 167
 168    /* Helpers for i915_texprog.c:
 169     */
 170    GLuint src_texture;          /* Reg containing sampled texture color,
 171                                  * else UREG_BAD.
 172                                  */
 173
 174    GLuint src_previous;         /* Reg containing color from previous
 175                                  * stage.  May need to be decl'd.
 176                                  */
 177
 178    GLuint last_tex_stage;       /* Number of last enabled texture unit */
 179
 180    struct vertex_buffer *VB;
 181 };
 182
 183
 184
 185
 186
 187
 188 struct i915_texture_object
 189 {
 190    struct intel_texture_object intel;
 191    GLenum lastTarget;
 192    GLboolean refs_border_color;
 193    GLuint Setup[I915_TEX_SETUP_SIZE];
 194 };
 195
 196 #define I915_TEX_UNITS 8
 197
 198
 199 struct i915_hw_state {
 200    GLuint Ctx[I915_CTX_SETUP_SIZE];
 201    GLuint Buffer[I915_DEST_SETUP_SIZE];
 202    GLuint Stipple[I915_STP_SETUP_SIZE];
 203    GLuint Fog[I915_FOG_SETUP_SIZE];
 204    GLuint Tex[I915_TEX_UNITS][I915_TEX_SETUP_SIZE];
 205    GLuint Constant[I915_CONSTANT_SIZE];
 206    GLuint ConstantSize;
 207    GLuint Program[I915_PROGRAM_SIZE];
 208    GLuint ProgramSize;
 209    GLuint active;               /* I915_UPLOAD_* */
 210    GLuint emitted;              /* I915_UPLOAD_* */
 211 };
 212
 213 #define I915_FOG_PIXEL  2
 214 #define I915_FOG_VERTEX 1
 215 #define I915_FOG_NONE   0
 216
 217 struct i915_context
 218 {
 219    struct intel_context intel;
 220
 221    GLuint last_ReallyEnabled;
 222    GLuint vertex_fog;
 223
 224    struct i915_fragment_program tex_program;
 225    struct i915_fragment_program *current_program;
 226
 227    struct i915_hw_state meta, initial, state, *current;
 228 };
 229
 230
 231 typedef struct i915_context *i915ContextPtr;
 232 typedef struct i915_texture_object *i915TextureObjectPtr;
 233
 234 #define I915_CONTEXT(ctx)       ((i915ContextPtr)(ctx))
 235
 236
 237
 238 #define I915_STATECHANGE(i915, flag)                                    \
 239 do {                                                                    \
 240    if (0) fprintf(stderr, "I915_STATECHANGE %x in %s\n", flag, __FUNCTION__);   \
 241    INTEL_FIREVERTICES( &(i915)->intel );                                        \
 242    (i915)->state.emitted &= ~(flag);                                    \
 243 } while (0)
 244
 245 #define I915_ACTIVESTATE(i915, flag, mode)                      \
 246 do {                                                            \
 247    if (0) fprintf(stderr, "I915_ACTIVESTATE %x %d in %s\n",     \
 248                   flag, mode, __FUNCTION__);                    \
 249    INTEL_FIREVERTICES( &(i915)->intel );                                \
 250    if (mode)                                                    \
 251       (i915)->state.active |= (flag);                           \
 252    else                                                         \
 253       (i915)->state.active &= ~(flag);                          \
 254 } while (0)
 255
 256
 257 /*======================================================================
 258  * i915_vtbl.c
 259  */
 260 extern void i915InitVtbl( i915ContextPtr i915 );
 261
 262
 263
 264 #define SZ_TO_HW(sz)  ((sz-2)&0x3)
 265 #define EMIT_SZ(sz)   (EMIT_1F + (sz) - 1)
 266 #define EMIT_ATTR( ATTR, STYLE, S4, SZ )                                \
 267 do {                                                                    \
 268    intel->vertex_attrs[intel->vertex_attr_count].attrib = (ATTR);       \
 269    intel->vertex_attrs[intel->vertex_attr_count].format = (STYLE);      \
 270    s4 |= S4;                                                            \
 271    intel->vertex_attr_count++;                                          \
 272    offset += (SZ);                                                      \
 273 } while (0)
 274
 275 #define EMIT_PAD( N )                                                   \
 276 do {                                                                    \
 277    intel->vertex_attrs[intel->vertex_attr_count].attrib = 0;            \
 278    intel->vertex_attrs[intel->vertex_attr_count].format = EMIT_PAD;     \
 279    intel->vertex_attrs[intel->vertex_attr_count].offset = (N);          \
 280    intel->vertex_attr_count++;                                          \
 281    offset += (N);                                                       \
 282 } while (0)
 283
 284
 285
 286 /*======================================================================
 287  * i915_context.c
 288  */
 289 extern GLboolean i915CreateContext( const __GLcontextModes *mesaVis,
 290                                     __DRIcontextPrivate *driContextPriv,
 291                                     void *sharedContextPrivate);
 292
 293
 294 /*======================================================================
 295  * i915_texprog.c
 296  */
 297 extern void i915ValidateTextureProgram( i915ContextPtr i915 );
 298
 299
 300 /*======================================================================
 301  * i915_debug.c
 302  */
 303 extern void i915_disassemble_program( const GLuint *program, GLuint sz );
 304 extern void i915_print_ureg( const char *msg, GLuint ureg );
 305
 306
 307 /*======================================================================
 308  * i915_state.c
 309  */
 310 extern void i915InitStateFunctions( struct dd_function_table *functions );
 311 extern void i915InitState( i915ContextPtr i915 );
 312 extern void i915_update_fog( GLcontext *ctx );
 313
 314
 315 /*======================================================================
 316  * i915_tex.c
 317  */
 318 extern void i915UpdateTextureState( intelContextPtr intel );
 319 extern void i915InitTextureFuncs( struct dd_function_table *functions );
 320 extern intelTextureObjectPtr i915AllocTexObj( struct gl_texture_object *texObj );
 321
 322 /*======================================================================
 323  * i915_metaops.c
 324  */
 325 extern GLboolean
 326 i915TryTextureReadPixels( GLcontext *ctx,
 327                           GLint x, GLint y, GLsizei width, GLsizei height,
 328                           GLenum format, GLenum type,
 329                           const struct gl_pixelstore_attrib *pack,
 330                           GLvoid *pixels );
 331
 332 extern GLboolean
 333 i915TryTextureDrawPixels( GLcontext *ctx,
 334                           GLint x, GLint y, GLsizei width, GLsizei height,
 335                           GLenum format, GLenum type,
 336                           const struct gl_pixelstore_attrib *unpack,
 337                           const GLvoid *pixels );
 338
 339 extern void
 340 i915ClearWithTris( intelContextPtr intel, GLbitfield mask,
 341                    GLboolean all, GLint cx, GLint cy, GLint cw, GLint ch);
 342
 343
 344 /*======================================================================
 345  * i915_fragprog.c
 346  */
 347 extern void i915ValidateFragmentProgram( i915ContextPtr i915 );
 348 extern void i915InitFragProgFuncs( struct dd_function_table *functions );
 349
 350 #endif
 351