src/mesa/drivers/dri/i965/intel_blit.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
  29 #include <stdio.h>
  30 #include <errno.h>
  31
  32 #include "mtypes.h"
  33 #include "context.h"
  34 #include "enums.h"
  35 #include "vblank.h"
  36
  37 #include "intel_reg.h"
  38 #include "intel_batchbuffer.h"
  39 #include "intel_context.h"
  40 #include "intel_blit.h"
  41 #include "intel_regions.h"
  42
  43 #include "bufmgr.h"
  44
  45
  46
  47
  48 /*
  49  * Copy the back buffer to the front buffer.
  50  */
  51 void intelCopyBuffer( const __DRIdrawablePrivate *dPriv,
  52                       const drm_clip_rect_t *rect )
  53 {
  54    struct intel_context *intel;
  55    GLboolean   missed_target;
  56    int64_t ust;
  57
  58    DBG("%s\n", __FUNCTION__);
  59
  60    assert(dPriv);
  61    assert(dPriv->driContextPriv);
  62    assert(dPriv->driContextPriv->driverPrivate);
  63
  64    intel = (struct intel_context *) dPriv->driContextPriv->driverPrivate;
  65    intelFlush( &intel->ctx );
  66
  67
  68    bmFinishFence(intel, intel->last_swap_fence);
  69
  70    /* The LOCK_HARDWARE is required for the cliprects.  Buffer offsets
  71     * should work regardless.
  72     */
  73    LOCK_HARDWARE( intel );
  74
  75    if (!rect)
  76    {
  77        UNLOCK_HARDWARE( intel );
  78        driWaitForVBlank( dPriv, &intel->vbl_seq, intel->vblank_flags, & missed_target );
  79        LOCK_HARDWARE( intel );
  80    }
  81
  82    {
  83       intelScreenPrivate *intelScreen = intel->intelScreen;
  84       __DRIdrawablePrivate *dPriv = intel->driDrawable;
  85       int nbox = dPriv->numClipRects;
  86       drm_clip_rect_t *pbox = dPriv->pClipRects;
  87       int cpp = intelScreen->cpp;
  88       struct intel_region *src, *dst;
  89       int BR13, CMD;
  90       int i;
  91       int src_pitch, dst_pitch;
  92
  93       if (intel->sarea->pf_current_page == 0) {
  94          dst = intel->front_region;
  95          src = intel->back_region;
  96       }
  97       else {
  98          assert(0);
  99          src = intel->front_region;
 100          dst = intel->back_region;
 101       }
 102
 103       src_pitch = src->pitch * src->cpp;
 104       dst_pitch = dst->pitch * dst->cpp;
 105
 106       if (cpp == 2) {
 107          BR13 = (0xCC << 16) | (1<<24);
 108          CMD = XY_SRC_COPY_BLT_CMD;
 109       }
 110       else {
 111          BR13 = (0xCC << 16) | (1<<24) | (1<<25);
 112          CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
 113                 XY_SRC_COPY_BLT_WRITE_RGB);
 114       }
 115
 116       if (src->tiled) {
 117          CMD |= XY_SRC_TILED;
 118          src_pitch /= 4;
 119       }
 120
 121       if (dst->tiled) {
 122          CMD |= XY_DST_TILED;
 123          dst_pitch /= 4;
 124       }
 125
 126       for (i = 0 ; i < nbox; i++, pbox++)
 127       {
 128          drm_clip_rect_t tmp = *pbox;
 129
 130          if (rect) {
 131             if (!intel_intersect_cliprects(&tmp, &tmp, rect))
 132                continue;
 133          }
 134
 135
 136          if (tmp.x1 > tmp.x2 ||
 137              tmp.y1 > tmp.y2 ||
 138              tmp.x2 > intelScreen->width ||
 139              tmp.y2 > intelScreen->height)
 140             continue;
 141
 142          BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
 143          OUT_BATCH( CMD );
 144          OUT_BATCH( dst_pitch | BR13 );
 145          OUT_BATCH( (tmp.y1 << 16) | tmp.x1 );
 146          OUT_BATCH( (tmp.y2 << 16) | tmp.x2 );
 147          OUT_BATCH( bmBufferOffset(intel, dst->buffer) );
 148          OUT_BATCH( (tmp.y1 << 16) | tmp.x1 );
 149          OUT_BATCH( src_pitch );
 150          OUT_BATCH( bmBufferOffset(intel, src->buffer) );
 151          ADVANCE_BATCH();
 152       }
 153    }
 154
 155    intel_batchbuffer_flush( intel->batch );
 156    intel->second_last_swap_fence = intel->last_swap_fence;
 157    intel->last_swap_fence = bmSetFence( intel );
 158    UNLOCK_HARDWARE( intel );
 159
 160    if (!rect)
 161    {
 162        intel->swap_count++;
 163        (*dri_interface->getUST)(&ust);
 164        if (missed_target) {
 165            intel->swap_missed_count++;
 166            intel->swap_missed_ust = ust -  intel->swap_ust;
 167        }
 168
 169        intel->swap_ust = ust;
 170    }
 171
 172 }
 173
 174
 175
 176
 177 void intelEmitFillBlit( struct intel_context *intel,
 178                         GLuint cpp,
 179                         GLshort dst_pitch,
 180                         struct buffer *dst_buffer,
 181                         GLuint dst_offset,
 182                         GLboolean dst_tiled,
 183                         GLshort x, GLshort y,
 184                         GLshort w, GLshort h,
 185                         GLuint color )
 186 {
 187    GLuint BR13, CMD;
 188    BATCH_LOCALS;
 189
 190    dst_pitch *= cpp;
 191
 192    switch(cpp) {
 193    case 1:
 194    case 2:
 195    case 3:
 196       BR13 = (0xF0 << 16) | (1<<24);
 197       CMD = XY_COLOR_BLT_CMD;
 198       break;
 199    case 4:
 200       BR13 = (0xF0 << 16) | (1<<24) | (1<<25);
 201       CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA |
 202              XY_COLOR_BLT_WRITE_RGB);
 203       break;
 204    default:
 205       return;
 206    }
 207
 208    if (dst_tiled) {
 209       CMD |= XY_DST_TILED;
 210       dst_pitch /= 4;
 211    }
 212
 213    BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
 214    OUT_BATCH( CMD );
 215    OUT_BATCH( dst_pitch | BR13 );
 216    OUT_BATCH( (y << 16) | x );
 217    OUT_BATCH( ((y+h) << 16) | (x+w) );
 218    OUT_BATCH( bmBufferOffset(intel, dst_buffer) + dst_offset );
 219    OUT_BATCH( color );
 220    ADVANCE_BATCH();
 221 }
 222
 223
 224 /* Copy BitBlt
 225  */
 226 void intelEmitCopyBlit( struct intel_context *intel,
 227                         GLuint cpp,
 228                         GLshort src_pitch,
 229                         struct buffer *src_buffer,
 230                         GLuint  src_offset,
 231                         GLboolean src_tiled,
 232                         GLshort dst_pitch,
 233                         struct buffer *dst_buffer,
 234                         GLuint  dst_offset,
 235                         GLboolean dst_tiled,
 236                         GLshort src_x, GLshort src_y,
 237                         GLshort dst_x, GLshort dst_y,
 238                         GLshort w, GLshort h )
 239 {
 240    GLuint CMD, BR13;
 241    int dst_y2 = dst_y + h;
 242    int dst_x2 = dst_x + w;
 243    BATCH_LOCALS;
 244
 245
 246    DBG("%s src:buf(%d)/%d %d,%d dst:buf(%d)/%d %d,%d sz:%dx%d\n",
 247        __FUNCTION__,
 248        src_buffer, src_pitch, src_x, src_y,
 249        dst_buffer, dst_pitch, dst_x, dst_y,
 250        w,h);
 251
 252    src_pitch *= cpp;
 253    dst_pitch *= cpp;
 254
 255    switch(cpp) {
 256    case 1:
 257    case 2:
 258    case 3:
 259       BR13 = (0xCC << 16) | (1<<24);
 260       CMD = XY_SRC_COPY_BLT_CMD;
 261       break;
 262    case 4:
 263       BR13 = (0xCC << 16) | (1<<24) | (1<<25);
 264       CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
 265              XY_SRC_COPY_BLT_WRITE_RGB);
 266       break;
 267    default:
 268       return;
 269    }
 270
 271    if (src_tiled) {
 272       CMD |= XY_SRC_TILED;
 273       src_pitch /= 4;
 274    }
 275
 276    if (dst_tiled) {
 277       CMD |= XY_DST_TILED;
 278       dst_pitch /= 4;
 279    }
 280
 281    if (dst_y2 < dst_y ||
 282        dst_x2 < dst_x) {
 283       return;
 284    }
 285
 286    dst_pitch &= 0xffff;
 287    src_pitch &= 0xffff;
 288
 289    /* Initial y values don't seem to work with negative pitches.  If
 290     * we adjust the offsets manually (below), it seems to work fine.
 291     */
 292    if (1) {
 293       BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
 294       OUT_BATCH( CMD );
 295       OUT_BATCH( dst_pitch | BR13 );
 296       OUT_BATCH( (dst_y << 16) | dst_x );
 297       OUT_BATCH( (dst_y2 << 16) | dst_x2 );
 298       OUT_BATCH( bmBufferOffset(intel, dst_buffer) + dst_offset );
 299       OUT_BATCH( (src_y << 16) | src_x );
 300       OUT_BATCH( src_pitch );
 301       OUT_BATCH( bmBufferOffset(intel, src_buffer) + src_offset );
 302       ADVANCE_BATCH();
 303    }
 304    else {
 305       BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
 306       OUT_BATCH( CMD );
 307       OUT_BATCH( (dst_pitch & 0xffff) | BR13 );
 308       OUT_BATCH( (0 << 16) | dst_x );
 309       OUT_BATCH( (h << 16) | dst_x2 );
 310       OUT_BATCH( bmBufferOffset(intel, dst_buffer) + dst_offset + dst_y * dst_pitch );
 311       OUT_BATCH( (0 << 16) | src_x );
 312       OUT_BATCH( (src_pitch & 0xffff) );
 313       OUT_BATCH( bmBufferOffset(intel, src_buffer) + src_offset + src_y * src_pitch );
 314       ADVANCE_BATCH();
 315    }
 316 }
 317
 318
 319
 320 void intelClearWithBlit(GLcontext *ctx, GLbitfield flags, GLboolean all,
 321                       GLint cx1, GLint cy1, GLint cw, GLint ch)
 322 {
 323    struct intel_context *intel = intel_context( ctx );
 324    intelScreenPrivate *intelScreen = intel->intelScreen;
 325    GLuint clear_depth, clear_color;
 326    GLint cx, cy;
 327    GLint cpp = intelScreen->cpp;
 328    GLint i;
 329    struct intel_region *front = intel->front_region;
 330    struct intel_region *back = intel->back_region;
 331    struct intel_region *depth = intel->depth_region;
 332    GLuint BR13, FRONT_CMD, BACK_CMD, DEPTH_CMD;
 333    GLuint front_pitch;
 334    GLuint back_pitch;
 335    GLuint depth_pitch;
 336    BATCH_LOCALS;
 337
 338
 339    clear_color = intel->ClearColor;
 340    clear_depth = 0;
 341
 342    if (flags & BUFFER_BIT_DEPTH) {
 343       clear_depth = (GLuint)(ctx->Depth.Clear * intel->ClearDepth);
 344    }
 345
 346    if (flags & BUFFER_BIT_STENCIL) {
 347       clear_depth |= (ctx->Stencil.Clear & 0xff) << 24;
 348    }
 349
 350    switch(cpp) {
 351    case 2:
 352       BR13 = (0xF0 << 16) | (1<<24);
 353       BACK_CMD  = FRONT_CMD = XY_COLOR_BLT_CMD;
 354       DEPTH_CMD = XY_COLOR_BLT_CMD;
 355       break;
 356    case 4:
 357       BR13 = (0xF0 << 16) | (1<<24) | (1<<25);
 358       BACK_CMD = FRONT_CMD = (XY_COLOR_BLT_CMD |
 359                               XY_COLOR_BLT_WRITE_ALPHA |
 360                               XY_COLOR_BLT_WRITE_RGB);
 361       DEPTH_CMD = XY_COLOR_BLT_CMD;
 362       if (flags & BUFFER_BIT_DEPTH) DEPTH_CMD |= XY_COLOR_BLT_WRITE_RGB;
 363       if (flags & BUFFER_BIT_STENCIL) DEPTH_CMD |= XY_COLOR_BLT_WRITE_ALPHA;
 364       break;
 365    default:
 366       return;
 367    }
 368
 369
 370
 371    intelFlush( &intel->ctx );
 372    LOCK_HARDWARE( intel );
 373    {
 374       /* Refresh the cx/y/w/h values as they may have been invalidated
 375        * by a new window position or size picked up when we did
 376        * LOCK_HARDWARE above.  The values passed by mesa are not
 377        * reliable.
 378        */
 379       {
 380           cx = ctx->DrawBuffer->_Xmin;
 381           cy = ctx->DrawBuffer->_Ymin;
 382           ch = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
 383           cw  = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
 384       }
 385
 386       /* flip top to bottom */
 387       cy = intel->driDrawable->h-cy1-ch;
 388       cx = cx1 + intel->drawX;
 389       cy += intel->drawY;
 390
 391       /* adjust for page flipping */
 392       if ( intel->sarea->pf_current_page == 0 ) {
 393          front = intel->front_region;
 394          back = intel->back_region;
 395       }
 396       else {
 397          back = intel->front_region;
 398          front = intel->back_region;
 399       }
 400
 401       front_pitch = front->pitch * front->cpp;
 402       back_pitch = back->pitch * back->cpp;
 403       depth_pitch = depth->pitch * depth->cpp;
 404
 405       if (front->tiled) {
 406          FRONT_CMD |= XY_DST_TILED;
 407          front_pitch /= 4;
 408       }
 409
 410       if (back->tiled) {
 411          BACK_CMD |= XY_DST_TILED;
 412          back_pitch /= 4;
 413       }
 414
 415       if (depth->tiled) {
 416          DEPTH_CMD |= XY_DST_TILED;
 417          depth_pitch /= 4;
 418       }
 419
 420       for (i = 0 ; i < intel->numClipRects ; i++)
 421       {
 422          drm_clip_rect_t *box = &intel->pClipRects[i];
 423          drm_clip_rect_t b;
 424
 425          if (!all) {
 426             GLint x = box->x1;
 427             GLint y = box->y1;
 428             GLint w = box->x2 - x;
 429             GLint h = box->y2 - y;
 430
 431             if (x < cx) w -= cx - x, x = cx;
 432             if (y < cy) h -= cy - y, y = cy;
 433             if (x + w > cx + cw) w = cx + cw - x;
 434             if (y + h > cy + ch) h = cy + ch - y;
 435             if (w <= 0) continue;
 436             if (h <= 0) continue;
 437
 438             b.x1 = x;
 439             b.y1 = y;
 440             b.x2 = x + w;
 441             b.y2 = y + h;
 442          } else {
 443             b = *box;
 444          }
 445
 446
 447          if (b.x1 > b.x2 ||
 448              b.y1 > b.y2 ||
 449              b.x2 > intelScreen->width ||
 450              b.y2 > intelScreen->height)
 451             continue;
 452
 453          if ( flags & BUFFER_BIT_FRONT_LEFT ) {
 454             BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
 455             OUT_BATCH( FRONT_CMD );
 456             OUT_BATCH( front_pitch | BR13 );
 457             OUT_BATCH( (b.y1 << 16) | b.x1 );
 458             OUT_BATCH( (b.y2 << 16) | b.x2 );
 459             OUT_BATCH( bmBufferOffset(intel, front->buffer) );
 460             OUT_BATCH( clear_color );
 461             ADVANCE_BATCH();
 462          }
 463
 464          if ( flags & BUFFER_BIT_BACK_LEFT ) {
 465             BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
 466             OUT_BATCH( BACK_CMD );
 467             OUT_BATCH( back_pitch | BR13 );
 468             OUT_BATCH( (b.y1 << 16) | b.x1 );
 469             OUT_BATCH( (b.y2 << 16) | b.x2 );
 470             OUT_BATCH( bmBufferOffset(intel, back->buffer) );
 471             OUT_BATCH( clear_color );
 472             ADVANCE_BATCH();
 473          }
 474
 475          if ( flags & (BUFFER_BIT_STENCIL | BUFFER_BIT_DEPTH) ) {
 476             BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
 477             OUT_BATCH( DEPTH_CMD );
 478             OUT_BATCH( depth_pitch | BR13 );
 479             OUT_BATCH( (b.y1 << 16) | b.x1 );
 480             OUT_BATCH( (b.y2 << 16) | b.x2 );
 481             OUT_BATCH( bmBufferOffset(intel, depth->buffer) );
 482             OUT_BATCH( clear_depth );
 483             ADVANCE_BATCH();
 484          }
 485       }
 486    }
 487    intel_batchbuffer_flush( intel->batch );
 488    UNLOCK_HARDWARE( intel );
 489 }
 490
 491