src/mesa/drivers/dri/i915/i830_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 I830CONTEXT_INC
  29 #define I830CONTEXT_INC
  30
  31 #include "intel_context.h"
  32
  33 #define I830_FALLBACK_TEXTURE            0x1000
  34 #define I830_FALLBACK_COLORMASK          0x2000
  35 #define I830_FALLBACK_STENCIL            0x4000
  36 #define I830_FALLBACK_STIPPLE            0x8000
  37 #define I830_FALLBACK_LOGICOP            0x10000
  38
  39 #define I830_UPLOAD_CTX              0x1
  40 #define I830_UPLOAD_BUFFERS          0x2
  41 #define I830_UPLOAD_STIPPLE          0x4
  42 #define I830_UPLOAD_INVARIENT        0x8
  43 #define I830_UPLOAD_TEX(i)           (0x10<<(i))
  44 #define I830_UPLOAD_TEXBLEND(i)      (0x100<<(i))
  45 #define I830_UPLOAD_TEX_ALL          (0x0f0)
  46 #define I830_UPLOAD_TEXBLEND_ALL     (0xf00)
  47
  48 /* State structure offsets - these will probably disappear.
  49  */
  50 #define I830_DESTREG_CBUFADDR0 0
  51 #define I830_DESTREG_CBUFADDR1 1
  52 #define I830_DESTREG_DBUFADDR0 2
  53 #define I830_DESTREG_DBUFADDR1 3
  54 #define I830_DESTREG_DV0 4
  55 #define I830_DESTREG_DV1 5
  56 #define I830_DESTREG_SENABLE 6
  57 #define I830_DESTREG_SR0 7
  58 #define I830_DESTREG_SR1 8
  59 #define I830_DESTREG_SR2 9
  60 #define I830_DEST_SETUP_SIZE 10
  61
  62 #define I830_CTXREG_STATE1              0
  63 #define I830_CTXREG_STATE2              1
  64 #define I830_CTXREG_STATE3              2
  65 #define I830_CTXREG_STATE4              3
  66 #define I830_CTXREG_STATE5              4
  67 #define I830_CTXREG_IALPHAB             5
  68 #define I830_CTXREG_STENCILTST          6
  69 #define I830_CTXREG_ENABLES_1           7
  70 #define I830_CTXREG_ENABLES_2           8
  71 #define I830_CTXREG_AA                  9
  72 #define I830_CTXREG_FOGCOLOR            10
  73 #define I830_CTXREG_BLENDCOLOR0         11
  74 #define I830_CTXREG_BLENDCOLOR1         12
  75 #define I830_CTXREG_VF                  13
  76 #define I830_CTXREG_VF2                 14
  77 #define I830_CTXREG_MCSB0               15
  78 #define I830_CTXREG_MCSB1               16
  79 #define I830_CTX_SETUP_SIZE             17
  80
  81 #define I830_STPREG_ST0        0
  82 #define I830_STPREG_ST1        1
  83 #define I830_STP_SETUP_SIZE    2
  84
  85 #define I830_TEXREG_TM0LI      0        /* load immediate 2 texture map n */
  86 #define I830_TEXREG_TM0S1      1
  87 #define I830_TEXREG_TM0S2      2
  88 #define I830_TEXREG_TM0S3      3
  89 #define I830_TEXREG_TM0S4      4
  90 #define I830_TEXREG_MCS        5        /* _3DSTATE_MAP_COORD_SETS */
  91 #define I830_TEXREG_CUBE       6        /* _3DSTATE_MAP_SUBE */
  92 #define I830_TEX_SETUP_SIZE    7
  93
  94 #define I830_TEXBLEND_SIZE      12      /* (4 args + op) * 2 + COLOR_FACTOR */
  95
  96 struct i830_texture_object
  97 {
  98    struct intel_texture_object intel;
  99    GLuint Setup[I830_TEX_SETUP_SIZE];
 100 };
 101
 102 #define I830_TEX_UNITS 4
 103
 104 struct i830_hw_state
 105 {
 106    GLuint Ctx[I830_CTX_SETUP_SIZE];
 107    GLuint Buffer[I830_DEST_SETUP_SIZE];
 108    GLuint Stipple[I830_STP_SETUP_SIZE];
 109    GLuint Tex[I830_TEX_UNITS][I830_TEX_SETUP_SIZE];
 110    GLuint TexBlend[I830_TEX_UNITS][I830_TEXBLEND_SIZE];
 111    GLuint TexBlendWordsUsed[I830_TEX_UNITS];
 112
 113    struct intel_region *draw_region;
 114    struct intel_region *depth_region;
 115
 116    /* Regions aren't actually that appropriate here as the memory may
 117     * be from a PBO or FBO.  Will have to do this for draw and depth for
 118     * FBO's...
 119     */
 120    dri_bo *tex_buffer[I830_TEX_UNITS];
 121    GLuint tex_offset[I830_TEX_UNITS];
 122
 123    GLuint emitted;              /* I810_UPLOAD_* */
 124    GLuint active;
 125 };
 126
 127 struct i830_context
 128 {
 129    struct intel_context intel;
 130
 131    GLuint lodbias_tm0s3[MAX_TEXTURE_UNITS];
 132      DECLARE_RENDERINPUTS(last_index_bitset);
 133
 134    struct i830_hw_state meta, initial, state, *current;
 135 };
 136
 137
 138
 139
 140 #define I830_STATECHANGE(i830, flag)                            \
 141 do {                                                            \
 142    INTEL_FIREVERTICES( &i830->intel );                          \
 143    i830->state.emitted &= ~flag;                                        \
 144 } while (0)
 145
 146 #define I830_ACTIVESTATE(i830, flag, mode)      \
 147 do {                                            \
 148    INTEL_FIREVERTICES( &i830->intel );          \
 149    if (mode)                                    \
 150       i830->state.active |= flag;               \
 151    else                                         \
 152       i830->state.active &= ~flag;              \
 153 } while (0)
 154
 155 /* i830_vtbl.c
 156  */
 157 extern void i830InitVtbl(struct i830_context *i830);
 158
 159 extern void
 160 i830_state_draw_region(struct intel_context *intel,
 161                        struct i830_hw_state *state,
 162                        struct intel_region *color_region,
 163                        struct intel_region *depth_region);
 164 /* i830_context.c
 165  */
 166 extern GLboolean
 167 i830CreateContext(const __GLcontextModes * mesaVis,
 168                   __DRIcontextPrivate * driContextPriv,
 169                   void *sharedContextPrivate);
 170
 171 /* i830_tex.c, i830_texstate.c
 172  */
 173 extern void i830UpdateTextureState(struct intel_context *intel);
 174
 175 extern void i830InitTextureFuncs(struct dd_function_table *functions);
 176
 177 /* i830_texblend.c
 178  */
 179 extern GLuint i830SetTexEnvCombine(struct i830_context *i830,
 180                                    const struct gl_tex_env_combine_state
 181                                    *combine, GLint blendUnit, GLuint texel_op,
 182                                    GLuint * state, const GLfloat * factor);
 183
 184 extern void i830EmitTextureBlend(struct i830_context *i830);
 185
 186
 187 /* i830_state.c
 188  */
 189 extern void i830InitStateFuncs(struct dd_function_table *functions);
 190
 191 extern void i830EmitState(struct i830_context *i830);
 192
 193 extern void i830InitState(struct i830_context *i830);
 194
 195 /* i830_metaops.c
 196  */
 197 extern void i830InitMetaFuncs(struct i830_context *i830);
 198
 199 /*======================================================================
 200  * Inline conversion functions.  These are better-typed than the
 201  * macros used previously:
 202  */
 203 static INLINE struct i830_context *
 204 i830_context(GLcontext * ctx)
 205 {
 206    return (struct i830_context *) ctx;
 207 }
 208
 209 #endif