src/gallium/drivers/i915simple/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 "pipe/p_util.h"
  34
  35 #define FILE_DEBUG_FLAG DEBUG_STATE
  36
  37 /* State that we have chosen to store in the DYNAMIC segment of the
  38  * i915 indirect state mechanism.
  39  *
  40  * Can't cache these in the way we do the static state, as there is no
  41  * start/size in the command packet, instead an 'end' value that gets
  42  * incremented.
  43  *
  44  * Additionally, there seems to be a requirement to re-issue the full
  45  * (active) state every time a 4kb boundary is crossed.
  46  */
  47
  48 static INLINE void set_dynamic_indirect( struct i915_context *i915,
  49                                          unsigned offset,
  50                                          const unsigned *src,
  51                                          unsigned dwords )
  52 {
  53    unsigned i;
  54
  55    for (i = 0; i < dwords; i++)
  56       i915->current.dynamic[offset + i] = src[i];
  57
  58    i915->hardware_dirty |= I915_HW_DYNAMIC;
  59 }
  60
  61
  62 /***********************************************************************
  63  * Modes4: stencil masks and logicop
  64  */
  65 static void upload_MODES4( struct i915_context *i915 )
  66 {
  67    unsigned modes4 = 0;
  68
  69    /* I915_NEW_STENCIL */
  70    modes4 |= i915->depth_stencil->stencil_modes4;
  71    /* I915_NEW_BLEND */
  72    modes4 |= i915->blend->modes4;
  73
  74    /* Always, so that we know when state is in-active:
  75     */
  76    set_dynamic_indirect( i915,
  77                          I915_DYNAMIC_MODES4,
  78                          &modes4,
  79                          1 );
  80 }
  81
  82 const struct i915_tracked_state i915_upload_MODES4 = {
  83    I915_NEW_BLEND | I915_NEW_DEPTH_STENCIL,
  84    upload_MODES4
  85 };
  86
  87
  88
  89
  90 /***********************************************************************
  91  */
  92
  93 static void upload_BFO( struct i915_context *i915 )
  94 {
  95    set_dynamic_indirect( i915,
  96                          I915_DYNAMIC_BFO_0,
  97                          &(i915->depth_stencil->bfo[0]),
  98                          2 );
  99 }
 100
 101 const struct i915_tracked_state i915_upload_BFO = {
 102    I915_NEW_DEPTH_STENCIL,
 103    upload_BFO
 104 };
 105
 106
 107 /***********************************************************************
 108  */
 109
 110
 111 static void upload_BLENDCOLOR( struct i915_context *i915 )
 112 {
 113    unsigned bc[2];
 114
 115    memset( bc, 0, sizeof(bc) );
 116
 117    /* I915_NEW_BLEND {_COLOR}
 118     */
 119    {
 120       const float *color = i915->blend_color.color;
 121
 122       bc[0] = _3DSTATE_CONST_BLEND_COLOR_CMD;
 123       bc[1] = pack_ui32_float4( color[0],
 124                                 color[1],
 125                                 color[2],
 126                                 color[3] );
 127    }
 128
 129    set_dynamic_indirect( i915,
 130                          I915_DYNAMIC_BC_0,
 131                          bc,
 132                          2 );
 133 }
 134
 135 const struct i915_tracked_state i915_upload_BLENDCOLOR = {
 136    I915_NEW_BLEND,
 137    upload_BLENDCOLOR
 138 };
 139
 140 /***********************************************************************
 141  */
 142
 143
 144 static void upload_IAB( struct i915_context *i915 )
 145 {
 146    unsigned iab = i915->blend->iab;
 147
 148
 149    set_dynamic_indirect( i915,
 150                          I915_DYNAMIC_IAB,
 151                          &iab,
 152                          1 );
 153 }
 154
 155 const struct i915_tracked_state i915_upload_IAB = {
 156    I915_NEW_BLEND,
 157    upload_IAB
 158 };
 159
 160
 161 /***********************************************************************
 162  */
 163
 164
 165
 166 static void upload_DEPTHSCALE( struct i915_context *i915 )
 167 {
 168    set_dynamic_indirect( i915,
 169                          I915_DYNAMIC_DEPTHSCALE_0,
 170                          &(i915->rasterizer->ds[0].u),
 171                          2 );
 172 }
 173
 174 const struct i915_tracked_state i915_upload_DEPTHSCALE = {
 175    I915_NEW_RASTERIZER,
 176    upload_DEPTHSCALE
 177 };
 178
 179
 180
 181 /***********************************************************************
 182  * Polygon stipple
 183  *
 184  * The i915 supports a 4x4 stipple natively, GL wants 32x32.
 185  * Fortunately stipple is usually a repeating pattern.
 186  *
 187  * XXX: does stipple pattern need to be adjusted according to
 188  * the window position?
 189  *
 190  * XXX: possibly need workaround for conform paths test.
 191  */
 192
 193 static void upload_STIPPLE( struct i915_context *i915 )
 194 {
 195    unsigned st[2];
 196
 197    st[0] = _3DSTATE_STIPPLE;
 198    st[1] = 0;
 199
 200    /* I915_NEW_RASTERIZER
 201     */
 202    st[1] |= i915->rasterizer->st;
 203
 204
 205    /* I915_NEW_STIPPLE
 206     */
 207    {
 208       const ubyte *mask = (const ubyte *)i915->poly_stipple.stipple;
 209       ubyte p[4];
 210
 211       p[0] = mask[12] & 0xf;
 212       p[1] = mask[8] & 0xf;
 213       p[2] = mask[4] & 0xf;
 214       p[3] = mask[0] & 0xf;
 215
 216       /* Not sure what to do about fallbacks, so for now just dont:
 217        */
 218       st[1] |= ((p[0] << 0) |
 219                 (p[1] << 4) |
 220                 (p[2] << 8) |
 221                 (p[3] << 12));
 222    }
 223
 224
 225    set_dynamic_indirect( i915,
 226                          I915_DYNAMIC_STP_0,
 227                          &st[0],
 228                          2 );
 229 }
 230
 231
 232 const struct i915_tracked_state i915_upload_STIPPLE = {
 233    I915_NEW_RASTERIZER | I915_NEW_STIPPLE,
 234    upload_STIPPLE
 235 };
 236
 237
 238
 239 /***********************************************************************
 240  * Scissor.
 241  */
 242 static void upload_SCISSOR_ENABLE( struct i915_context *i915 )
 243 {
 244    set_dynamic_indirect( i915,
 245                          I915_DYNAMIC_SC_ENA_0,
 246                          &(i915->rasterizer->sc[0]),
 247                          1 );
 248 }
 249
 250 const struct i915_tracked_state i915_upload_SCISSOR_ENABLE = {
 251    I915_NEW_RASTERIZER,
 252    upload_SCISSOR_ENABLE
 253 };
 254
 255
 256
 257 static void upload_SCISSOR_RECT( struct i915_context *i915 )
 258 {
 259    unsigned x1 = i915->scissor.minx;
 260    unsigned y1 = i915->scissor.miny;
 261    unsigned x2 = i915->scissor.maxx;
 262    unsigned y2 = i915->scissor.maxy;
 263    unsigned sc[3];
 264
 265    sc[0] = _3DSTATE_SCISSOR_RECT_0_CMD;
 266    sc[1] = (y1 << 16) | (x1 & 0xffff);
 267    sc[2] = (y2 << 16) | (x2 & 0xffff);
 268
 269    set_dynamic_indirect( i915,
 270                          I915_DYNAMIC_SC_RECT_0,
 271                          &sc[0],
 272                          3 );
 273 }
 274
 275
 276 const struct i915_tracked_state i915_upload_SCISSOR_RECT = {
 277    I915_NEW_SCISSOR,
 278    upload_SCISSOR_RECT
 279 };
 280
 281
 282
 283
 284
 285
 286 static const struct i915_tracked_state *atoms[] = {
 287    &i915_upload_MODES4,
 288    &i915_upload_BFO,
 289    &i915_upload_BLENDCOLOR,
 290    &i915_upload_IAB,
 291    &i915_upload_DEPTHSCALE,
 292    &i915_upload_STIPPLE,
 293    &i915_upload_SCISSOR_ENABLE,
 294    &i915_upload_SCISSOR_RECT
 295 };
 296
 297 /* These will be dynamic indirect state commands, but for now just end
 298  * up on the batch buffer with everything else.
 299  */
 300 void i915_update_dynamic( struct i915_context *i915 )
 301 {
 302    int i;
 303
 304    for (i = 0; i < Elements(atoms); i++)
 305       if (i915->dirty & atoms[i]->dirty)
 306          atoms[i]->update( i915 );
 307 }
 308