src/gallium/drivers/i915/i915_state_dynamic.c

   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 #include "i915_batch.h"
  29 #include "i915_state_inlines.h"
  30 #include "i915_context.h"
  31 #include "i915_reg.h"
  32 #include "i915_state.h"
  33 #include "util/u_math.h"
  34 #include "util/u_memory.h"
  35 #include "util/u_pack_color.h"
  36
  37 #define FILE_DEBUG_FLAG DEBUG_STATE
  38
  39 /* State that we have chosen to store in the DYNAMIC segment of the
  40  * i915 indirect state mechanism.
  41  *
  42  * Can't cache these in the way we do the static state, as there is no
  43  * start/size in the command packet, instead an 'end' value that gets
  44  * incremented.
  45  *
  46  * Additionally, there seems to be a requirement to re-issue the full
  47  * (active) state every time a 4kb boundary is crossed.
  48  */
  49
  50 static INLINE void set_dynamic_indirect( struct i915_context *i915,
  51                                          unsigned offset,
  52                                          const unsigned *src,
  53                                          unsigned dwords )
  54 {
  55    unsigned i;
  56
  57    for (i = 0; i < dwords; i++)
  58       i915->current.dynamic[offset + i] = src[i];
  59
  60    i915->hardware_dirty |= I915_HW_DYNAMIC;
  61 }
  62
  63
  64 /***********************************************************************
  65  * Modes4: stencil masks and logicop
  66  */
  67 static void upload_MODES4( struct i915_context *i915 )
  68 {
  69    unsigned modes4 = 0;
  70
  71    /* I915_NEW_STENCIL */
  72    modes4 |= i915->depth_stencil->stencil_modes4;
  73    /* I915_NEW_BLEND */
  74    modes4 |= i915->blend->modes4;
  75
  76    /* Always, so that we know when state is in-active:
  77     */
  78    set_dynamic_indirect( i915,
  79                          I915_DYNAMIC_MODES4,
  80                          &modes4,
  81                          1 );
  82 }
  83
  84 const struct i915_tracked_state i915_upload_MODES4 = {
  85    I915_NEW_BLEND | I915_NEW_DEPTH_STENCIL,
  86    upload_MODES4
  87 };
  88
  89
  90
  91
  92 /***********************************************************************
  93  */
  94
  95 static void upload_BFO( struct i915_context *i915 )
  96 {
  97    set_dynamic_indirect( i915,
  98                          I915_DYNAMIC_BFO_0,
  99                          &(i915->depth_stencil->bfo[0]),
 100                          2 );
 101 }
 102
 103 const struct i915_tracked_state i915_upload_BFO = {
 104    I915_NEW_DEPTH_STENCIL,
 105    upload_BFO
 106 };
 107
 108
 109 /***********************************************************************
 110  */
 111
 112
 113 static void upload_BLENDCOLOR( struct i915_context *i915 )
 114 {
 115    unsigned bc[2];
 116
 117    memset( bc, 0, sizeof(bc) );
 118
 119    /* I915_NEW_BLEND {_COLOR}
 120     */
 121    {
 122       const float *color = i915->blend_color.color;
 123
 124       bc[0] = _3DSTATE_CONST_BLEND_COLOR_CMD;
 125       bc[1] = pack_ui32_float4( color[0],
 126                                 color[1],
 127                                 color[2],
 128                                 color[3] );
 129    }
 130
 131    set_dynamic_indirect( i915,
 132                          I915_DYNAMIC_BC_0,
 133                          bc,
 134                          2 );
 135 }
 136
 137 const struct i915_tracked_state i915_upload_BLENDCOLOR = {
 138    I915_NEW_BLEND,
 139    upload_BLENDCOLOR
 140 };
 141
 142 /***********************************************************************
 143  */
 144
 145
 146 static void upload_IAB( struct i915_context *i915 )
 147 {
 148    unsigned iab = i915->blend->iab;
 149
 150
 151    set_dynamic_indirect( i915,
 152                          I915_DYNAMIC_IAB,
 153                          &iab,
 154                          1 );
 155 }
 156
 157 const struct i915_tracked_state i915_upload_IAB = {
 158    I915_NEW_BLEND,
 159    upload_IAB
 160 };
 161
 162
 163 /***********************************************************************
 164  */
 165
 166
 167
 168 static void upload_DEPTHSCALE( struct i915_context *i915 )
 169 {
 170    set_dynamic_indirect( i915,
 171                          I915_DYNAMIC_DEPTHSCALE_0,
 172                          &(i915->rasterizer->ds[0].u),
 173                          2 );
 174 }
 175
 176 const struct i915_tracked_state i915_upload_DEPTHSCALE = {
 177    I915_NEW_RASTERIZER,
 178    upload_DEPTHSCALE
 179 };
 180
 181
 182
 183 /***********************************************************************
 184  * Polygon stipple
 185  *
 186  * The i915 supports a 4x4 stipple natively, GL wants 32x32.
 187  * Fortunately stipple is usually a repeating pattern.
 188  *
 189  * XXX: does stipple pattern need to be adjusted according to
 190  * the window position?
 191  *
 192  * XXX: possibly need workaround for conform paths test.
 193  */
 194
 195 static void upload_STIPPLE( struct i915_context *i915 )
 196 {
 197    unsigned st[2];
 198
 199    st[0] = _3DSTATE_STIPPLE;
 200    st[1] = 0;
 201
 202    /* I915_NEW_RASTERIZER
 203     */
 204    st[1] |= i915->rasterizer->st;
 205
 206
 207    /* I915_NEW_STIPPLE
 208     */
 209    {
 210       const ubyte *mask = (const ubyte *)i915->poly_stipple.stipple;
 211       ubyte p[4];
 212
 213       p[0] = mask[12] & 0xf;
 214       p[1] = mask[8] & 0xf;
 215       p[2] = mask[4] & 0xf;
 216       p[3] = mask[0] & 0xf;
 217
 218       /* Not sure what to do about fallbacks, so for now just dont:
 219        */
 220       st[1] |= ((p[0] << 0) |
 221                 (p[1] << 4) |
 222                 (p[2] << 8) |
 223                 (p[3] << 12));
 224    }
 225
 226
 227    set_dynamic_indirect( i915,
 228                          I915_DYNAMIC_STP_0,
 229                          &st[0],
 230                          2 );
 231 }
 232
 233
 234 const struct i915_tracked_state i915_upload_STIPPLE = {
 235    I915_NEW_RASTERIZER | I915_NEW_STIPPLE,
 236    upload_STIPPLE
 237 };
 238
 239
 240
 241 /***********************************************************************
 242  * Scissor.
 243  */
 244 static void upload_SCISSOR_ENABLE( struct i915_context *i915 )
 245 {
 246    set_dynamic_indirect( i915,
 247                          I915_DYNAMIC_SC_ENA_0,
 248                          &(i915->rasterizer->sc[0]),
 249                          1 );
 250 }
 251
 252 const struct i915_tracked_state i915_upload_SCISSOR_ENABLE = {
 253    I915_NEW_RASTERIZER,
 254    upload_SCISSOR_ENABLE
 255 };
 256
 257
 258
 259 static void upload_SCISSOR_RECT( struct i915_context *i915 )
 260 {
 261    unsigned x1 = i915->scissor.minx;
 262    unsigned y1 = i915->scissor.miny;
 263    unsigned x2 = i915->scissor.maxx;
 264    unsigned y2 = i915->scissor.maxy;
 265    unsigned sc[3];
 266
 267    sc[0] = _3DSTATE_SCISSOR_RECT_0_CMD;
 268    sc[1] = (y1 << 16) | (x1 & 0xffff);
 269    sc[2] = (y2 << 16) | (x2 & 0xffff);
 270
 271    set_dynamic_indirect( i915,
 272                          I915_DYNAMIC_SC_RECT_0,
 273                          &sc[0],
 274                          3 );
 275 }
 276
 277
 278 const struct i915_tracked_state i915_upload_SCISSOR_RECT = {
 279    I915_NEW_SCISSOR,
 280    upload_SCISSOR_RECT
 281 };
 282
 283
 284
 285
 286
 287
 288 static const struct i915_tracked_state *atoms[] = {
 289    &i915_upload_MODES4,
 290    &i915_upload_BFO,
 291    &i915_upload_BLENDCOLOR,
 292    &i915_upload_IAB,
 293    &i915_upload_DEPTHSCALE,
 294    &i915_upload_STIPPLE,
 295    &i915_upload_SCISSOR_ENABLE,
 296    &i915_upload_SCISSOR_RECT
 297 };
 298
 299 /* These will be dynamic indirect state commands, but for now just end
 300  * up on the batch buffer with everything else.
 301  */
 302 void i915_update_dynamic( struct i915_context *i915 )
 303 {
 304    int i;
 305
 306    for (i = 0; i < Elements(atoms); i++)
 307       if (i915->dirty & atoms[i]->dirty)
 308          atoms[i]->update( i915 );
 309 }
 310