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_TEX(i)           (0x10<<(i))
  43 #define I830_UPLOAD_TEXBLEND(i)      (0x100<<(i))
  44 #define I830_UPLOAD_TEX_ALL          (0x0f0)
  45 #define I830_UPLOAD_TEXBLEND_ALL     (0xf00)
  46
  47 /* State structure offsets - these will probably disappear.
  48  */
  49 #define I830_DESTREG_CBUFADDR0 0
  50 #define I830_DESTREG_CBUFADDR1 1
  51 #define I830_DESTREG_CBUFADDR2 2
  52 #define I830_DESTREG_DBUFADDR0 3
  53 #define I830_DESTREG_DBUFADDR1 4
  54 #define I830_DESTREG_DBUFADDR2 5
  55 #define I830_DESTREG_DV0 6
  56 #define I830_DESTREG_DV1 7
  57 #define I830_DESTREG_SENABLE 8
  58 #define I830_DESTREG_SR0 9
  59 #define I830_DESTREG_SR1 10
  60 #define I830_DESTREG_SR2 11
  61 #define I830_DEST_SETUP_SIZE 12
  62
  63 #define I830_CTXREG_STATE1              0
  64 #define I830_CTXREG_STATE2              1
  65 #define I830_CTXREG_STATE3              2
  66 #define I830_CTXREG_STATE4              3
  67 #define I830_CTXREG_STATE5              4
  68 #define I830_CTXREG_IALPHAB             5
  69 #define I830_CTXREG_STENCILTST          6
  70 #define I830_CTXREG_ENABLES_1           7
  71 #define I830_CTXREG_ENABLES_2           8
  72 #define I830_CTXREG_AA                  9
  73 #define I830_CTXREG_FOGCOLOR            10
  74 #define I830_CTXREG_BLENDCOLOR0         11
  75 #define I830_CTXREG_BLENDCOLOR1         12
  76 #define I830_CTXREG_VF                  13
  77 #define I830_CTXREG_VF2                 14
  78 #define I830_CTXREG_MCSB0               15
  79 #define I830_CTXREG_MCSB1               16
  80 #define I830_CTX_SETUP_SIZE             17
  81
  82 #define I830_STPREG_ST0        0
  83 #define I830_STPREG_ST1        1
  84 #define I830_STP_SETUP_SIZE    2
  85
  86 #define I830_TEXREG_TM0LI      0 /* load immediate 2 texture map n */
  87 #define I830_TEXREG_TM0S0      1
  88 #define I830_TEXREG_TM0S1      2
  89 #define I830_TEXREG_TM0S2      3
  90 #define I830_TEXREG_TM0S3      4
  91 #define I830_TEXREG_TM0S4      5
  92 #define I830_TEXREG_MCS        6        /* _3DSTATE_MAP_COORD_SETS */
  93 #define I830_TEXREG_CUBE       7        /* _3DSTATE_MAP_SUBE */
  94 #define I830_TEX_SETUP_SIZE    8
  95
  96 #define I830_TEXBLEND_SIZE      12      /* (4 args + op) * 2 + COLOR_FACTOR */
  97
  98 struct i830_texture_object
  99 {
 100    struct intel_texture_object intel;
 101    GLuint Setup[I830_TEX_SETUP_SIZE];
 102 };
 103
 104 #define I830_TEX_UNITS 4
 105
 106 struct i830_hw_state {
 107    GLuint Ctx[I830_CTX_SETUP_SIZE];
 108    GLuint Buffer[I830_DEST_SETUP_SIZE];
 109    GLuint Stipple[I830_STP_SETUP_SIZE];
 110    GLuint Tex[I830_TEX_UNITS][I830_TEX_SETUP_SIZE];
 111    GLuint TexBlend[I830_TEX_UNITS][I830_TEXBLEND_SIZE];
 112    GLuint TexBlendWordsUsed[I830_TEX_UNITS];
 113    GLuint emitted;              /* I810_UPLOAD_* */
 114    GLuint active;
 115 };
 116
 117 struct i830_context
 118 {
 119    struct intel_context intel;
 120
 121    GLuint last_index;
 122
 123    struct i830_hw_state meta, initial, state, *current;
 124 };
 125
 126 typedef struct i830_context *i830ContextPtr;
 127 typedef struct i830_texture_object *i830TextureObjectPtr;
 128
 129 #define I830_CONTEXT(ctx)       ((i830ContextPtr)(ctx))
 130
 131
 132
 133 #define I830_STATECHANGE(i830, flag)                            \
 134 do {                                                            \
 135    INTEL_FIREVERTICES( &i830->intel );                          \
 136    i830->state.emitted &= ~flag;                                        \
 137 } while (0)
 138
 139 #define I830_ACTIVESTATE(i830, flag, mode)      \
 140 do {                                            \
 141    INTEL_FIREVERTICES( &i830->intel );          \
 142    if (mode)                                    \
 143       i830->state.active |= flag;               \
 144    else                                         \
 145       i830->state.active &= ~flag;              \
 146 } while (0)
 147
 148 /* i830_vtbl.c
 149  */
 150 extern void
 151 i830InitVtbl( i830ContextPtr i830 );
 152
 153 /* i830_context.c
 154  */
 155 extern GLboolean
 156 i830CreateContext( const __GLcontextModes *mesaVis,
 157                    __DRIcontextPrivate *driContextPriv,
 158                    void *sharedContextPrivate);
 159
 160 /* i830_tex.c, i830_texstate.c
 161  */
 162 extern void
 163 i830UpdateTextureState( intelContextPtr intel );
 164
 165 extern void
 166 i830InitTextureFuncs( struct dd_function_table *functions );
 167
 168 extern intelTextureObjectPtr
 169 i830AllocTexObj( struct gl_texture_object *tObj );
 170
 171 /* i830_texblend.c
 172  */
 173 extern GLuint i830SetTexEnvCombine(i830ContextPtr i830,
 174     const struct gl_tex_env_combine_state * combine, GLint blendUnit,
 175      GLuint texel_op, GLuint *state, const GLfloat *factor );
 176
 177 extern void
 178 i830EmitTextureBlend( i830ContextPtr i830 );
 179
 180
 181 /* i830_state.c
 182  */
 183 extern void
 184 i830InitStateFuncs( struct dd_function_table *functions );
 185
 186 extern void
 187 i830EmitState( i830ContextPtr i830 );
 188
 189 extern void
 190 i830InitState( i830ContextPtr i830 );
 191
 192 /* i830_metaops.c
 193  */
 194 extern GLboolean
 195 i830TryTextureReadPixels( GLcontext *ctx,
 196                           GLint x, GLint y, GLsizei width, GLsizei height,
 197                           GLenum format, GLenum type,
 198                           const struct gl_pixelstore_attrib *pack,
 199                           GLvoid *pixels );
 200
 201 extern GLboolean
 202 i830TryTextureDrawPixels( GLcontext *ctx,
 203                           GLint x, GLint y, GLsizei width, GLsizei height,
 204                           GLenum format, GLenum type,
 205                           const struct gl_pixelstore_attrib *unpack,
 206                           const GLvoid *pixels );
 207
 208 extern void
 209 i830ClearWithTris( intelContextPtr intel, GLbitfield mask,
 210                    GLboolean all, GLint cx, GLint cy, GLint cw, GLint ch);
 211
 212
 213
 214 #endif
 215