src/mesa/drivers/dri/intel/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 "main/mtypes.h"
  30 #include "main/context.h"
  31 #include "main/enums.h"
  32 #include "main/colormac.h"
  33
  34 #include "intel_blit.h"
  35 #include "intel_buffers.h"
  36 #include "intel_context.h"
  37 #include "intel_fbo.h"
  38 #include "intel_reg.h"
  39 #include "intel_regions.h"
  40 #include "intel_batchbuffer.h"
  41
  42 #define FILE_DEBUG_FLAG DEBUG_BLIT
  43
  44 static GLuint translate_raster_op(GLenum logicop)
  45 {
  46    switch(logicop) {
  47    case GL_CLEAR: return 0x00;
  48    case GL_AND: return 0x88;
  49    case GL_AND_REVERSE: return 0x44;
  50    case GL_COPY: return 0xCC;
  51    case GL_AND_INVERTED: return 0x22;
  52    case GL_NOOP: return 0xAA;
  53    case GL_XOR: return 0x66;
  54    case GL_OR: return 0xEE;
  55    case GL_NOR: return 0x11;
  56    case GL_EQUIV: return 0x99;
  57    case GL_INVERT: return 0x55;
  58    case GL_OR_REVERSE: return 0xDD;
  59    case GL_COPY_INVERTED: return 0x33;
  60    case GL_OR_INVERTED: return 0xBB;
  61    case GL_NAND: return 0x77;
  62    case GL_SET: return 0xFF;
  63    default: return 0;
  64    }
  65 }
  66
  67
  68 /* Copy BitBlt
  69  */
  70 GLboolean
  71 intelEmitCopyBlit(struct intel_context *intel,
  72                   GLuint cpp,
  73                   GLshort src_pitch,
  74                   dri_bo *src_buffer,
  75                   GLuint src_offset,
  76                   uint32_t src_tiling,
  77                   GLshort dst_pitch,
  78                   dri_bo *dst_buffer,
  79                   GLuint dst_offset,
  80                   uint32_t dst_tiling,
  81                   GLshort src_x, GLshort src_y,
  82                   GLshort dst_x, GLshort dst_y,
  83                   GLshort w, GLshort h,
  84                   GLenum logic_op)
  85 {
  86    GLuint CMD, BR13, pass = 0;
  87    int dst_y2 = dst_y + h;
  88    int dst_x2 = dst_x + w;
  89    dri_bo *aper_array[3];
  90    BATCH_LOCALS;
  91
  92    if (dst_tiling != I915_TILING_NONE) {
  93       if (dst_offset & 4095)
  94          return GL_FALSE;
  95       if (dst_tiling == I915_TILING_Y)
  96          return GL_FALSE;
  97    }
  98    if (src_tiling != I915_TILING_NONE) {
  99       if (src_offset & 4095)
 100          return GL_FALSE;
 101       if (src_tiling == I915_TILING_Y)
 102          return GL_FALSE;
 103    }
 104
 105    /* do space check before going any further */
 106    do {
 107        aper_array[0] = intel->batch->buf;
 108        aper_array[1] = dst_buffer;
 109        aper_array[2] = src_buffer;
 110
 111        if (dri_bufmgr_check_aperture_space(aper_array, 3) != 0) {
 112            intel_batchbuffer_flush(intel->batch);
 113            pass++;
 114        } else
 115            break;
 116    } while (pass < 2);
 117
 118    if (pass >= 2) {
 119        dri_bo_map(dst_buffer, GL_TRUE);
 120        dri_bo_map(src_buffer, GL_FALSE);
 121        _mesa_copy_rect((GLubyte *)dst_buffer->virtual + dst_offset,
 122                        cpp,
 123                        dst_pitch,
 124                        dst_x, dst_y,
 125                        w, h,
 126                        (GLubyte *)src_buffer->virtual + src_offset,
 127                        src_pitch,
 128                        src_x, src_y);
 129
 130        dri_bo_unmap(src_buffer);
 131        dri_bo_unmap(dst_buffer);
 132
 133        return GL_TRUE;
 134    }
 135
 136    intel_batchbuffer_require_space(intel->batch, 8 * 4);
 137    DBG("%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
 138        __FUNCTION__,
 139        src_buffer, src_pitch, src_offset, src_x, src_y,
 140        dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
 141
 142    src_pitch *= cpp;
 143    dst_pitch *= cpp;
 144
 145    BR13 = translate_raster_op(logic_op) << 16;
 146
 147    switch (cpp) {
 148    case 1:
 149       CMD = XY_SRC_COPY_BLT_CMD;
 150       break;
 151    case 2:
 152       BR13 |= BR13_565;
 153       CMD = XY_SRC_COPY_BLT_CMD;
 154       break;
 155    case 4:
 156       BR13 |= BR13_8888;
 157       CMD = XY_SRC_COPY_BLT_CMD | XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB;
 158       break;
 159    default:
 160       return GL_FALSE;
 161    }
 162
 163 #ifndef I915
 164    if (dst_tiling != I915_TILING_NONE) {
 165       CMD |= XY_DST_TILED;
 166       dst_pitch /= 4;
 167    }
 168    if (src_tiling != I915_TILING_NONE) {
 169       CMD |= XY_SRC_TILED;
 170       src_pitch /= 4;
 171    }
 172 #endif
 173
 174    if (dst_y2 <= dst_y || dst_x2 <= dst_x) {
 175       return GL_TRUE;
 176    }
 177
 178    assert(dst_x < dst_x2);
 179    assert(dst_y < dst_y2);
 180
 181    BEGIN_BATCH(8);
 182    OUT_BATCH(CMD);
 183    OUT_BATCH(BR13 | (uint16_t)dst_pitch);
 184    OUT_BATCH((dst_y << 16) | dst_x);
 185    OUT_BATCH((dst_y2 << 16) | dst_x2);
 186    OUT_RELOC(dst_buffer,
 187              I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
 188              dst_offset);
 189    OUT_BATCH((src_y << 16) | src_x);
 190    OUT_BATCH((uint16_t)src_pitch);
 191    OUT_RELOC(src_buffer,
 192              I915_GEM_DOMAIN_RENDER, 0,
 193              src_offset);
 194    ADVANCE_BATCH();
 195
 196    intel_batchbuffer_emit_mi_flush(intel->batch);
 197
 198    return GL_TRUE;
 199 }
 200
 201
 202 /**
 203  * Use blitting to clear the renderbuffers named by 'flags'.
 204  * Note: we can't use the ctx->DrawBuffer->_ColorDrawBufferIndexes field
 205  * since that might include software renderbuffers or renderbuffers
 206  * which we're clearing with triangles.
 207  * \param mask  bitmask of BUFFER_BIT_* values indicating buffers to clear
 208  */
 209 void
 210 intelClearWithBlit(GLcontext *ctx, GLbitfield mask)
 211 {
 212    struct intel_context *intel = intel_context(ctx);
 213    struct gl_framebuffer *fb = ctx->DrawBuffer;
 214    GLuint clear_depth;
 215    GLboolean all;
 216    GLint cx, cy, cw, ch;
 217    BATCH_LOCALS;
 218
 219    /*
 220     * Compute values for clearing the buffers.
 221     */
 222    clear_depth = 0;
 223    if (mask & BUFFER_BIT_DEPTH) {
 224       clear_depth = (GLuint) (fb->_DepthMax * ctx->Depth.Clear);
 225    }
 226    if (mask & BUFFER_BIT_STENCIL) {
 227       clear_depth |= (ctx->Stencil.Clear & 0xff) << 24;
 228    }
 229
 230    cx = fb->_Xmin;
 231    if (fb->Name == 0)
 232       cy = fb->_Ymin;
 233    else
 234       cy = ctx->DrawBuffer->Height - fb->_Ymax;
 235    cw = fb->_Xmax - fb->_Xmin;
 236    ch = fb->_Ymax - fb->_Ymin;
 237
 238    if (cw == 0 || ch == 0)
 239       return;
 240
 241    GLuint buf;
 242    all = (cw == fb->Width && ch == fb->Height);
 243
 244    /* Loop over all renderbuffers */
 245    for (buf = 0; buf < BUFFER_COUNT && mask; buf++) {
 246       const GLbitfield bufBit = 1 << buf;
 247       struct intel_renderbuffer *irb;
 248       drm_intel_bo *write_buffer;
 249       int x1, y1, x2, y2;
 250       uint32_t clear_val;
 251       uint32_t BR13, CMD;
 252       int pitch, cpp;
 253
 254       if (!(mask & bufBit))
 255          continue;
 256
 257       /* OK, clear this renderbuffer */
 258       irb = intel_get_renderbuffer(fb, buf);
 259       write_buffer = intel_region_buffer(intel, irb->region,
 260                                          all ? INTEL_WRITE_FULL :
 261                                          INTEL_WRITE_PART);
 262       x1 = cx + irb->region->draw_x;
 263       y1 = cy + irb->region->draw_y;
 264       x2 = cx + cw + irb->region->draw_x;
 265       y2 = cy + ch + irb->region->draw_y;
 266
 267       pitch = irb->region->pitch;
 268       cpp = irb->region->cpp;
 269
 270       DBG("%s dst:buf(%p)/%d %d,%d sz:%dx%d\n",
 271           __FUNCTION__,
 272           irb->region->buffer, (pitch * cpp),
 273           x1, y1, x2 - x1, y2 - y1);
 274
 275       BR13 = 0xf0 << 16;
 276       CMD = XY_COLOR_BLT_CMD;
 277
 278       /* Setup the blit command */
 279       if (cpp == 4) {
 280          BR13 |= BR13_8888;
 281          if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL) {
 282             if (mask & BUFFER_BIT_DEPTH)
 283                CMD |= XY_BLT_WRITE_RGB;
 284             if (mask & BUFFER_BIT_STENCIL)
 285                CMD |= XY_BLT_WRITE_ALPHA;
 286          } else {
 287             /* clearing RGBA */
 288             CMD |= XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB;
 289          }
 290       } else {
 291          ASSERT(cpp == 2);
 292          BR13 |= BR13_565;
 293       }
 294
 295       assert(irb->region->tiling != I915_TILING_Y);
 296
 297 #ifndef I915
 298       if (irb->region->tiling != I915_TILING_NONE) {
 299          CMD |= XY_DST_TILED;
 300          pitch /= 4;
 301       }
 302 #endif
 303       BR13 |= (pitch * cpp);
 304
 305       if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL) {
 306          clear_val = clear_depth;
 307       } else {
 308          uint8_t clear[4];
 309          GLclampf *color = ctx->Color.ClearColor;
 310
 311          CLAMPED_FLOAT_TO_UBYTE(clear[0], color[0]);
 312          CLAMPED_FLOAT_TO_UBYTE(clear[1], color[1]);
 313          CLAMPED_FLOAT_TO_UBYTE(clear[2], color[2]);
 314          CLAMPED_FLOAT_TO_UBYTE(clear[3], color[3]);
 315
 316          switch (irb->Base.Format) {
 317          case MESA_FORMAT_ARGB8888:
 318          case MESA_FORMAT_XRGB8888:
 319             clear_val = PACK_COLOR_8888(clear[3], clear[0],
 320                                         clear[1], clear[2]);
 321             break;
 322          case MESA_FORMAT_RGB565:
 323             clear_val = PACK_COLOR_565(clear[0], clear[1], clear[2]);
 324             break;
 325          case MESA_FORMAT_ARGB4444:
 326             clear_val = PACK_COLOR_4444(clear[3], clear[0],
 327                                         clear[1], clear[2]);
 328             break;
 329          case MESA_FORMAT_ARGB1555:
 330             clear_val = PACK_COLOR_1555(clear[3], clear[0],
 331                                         clear[1], clear[2]);
 332             break;
 333          default:
 334             _mesa_problem(ctx, "Unexpected renderbuffer format: %d\n",
 335                           irb->Base.Format);
 336             clear_val = 0;
 337          }
 338       }
 339
 340       assert(x1 < x2);
 341       assert(y1 < y2);
 342
 343       BEGIN_BATCH(6);
 344       OUT_BATCH(CMD);
 345       OUT_BATCH(BR13);
 346       OUT_BATCH((y1 << 16) | x1);
 347       OUT_BATCH((y2 << 16) | x2);
 348       OUT_RELOC(write_buffer,
 349                 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
 350                 0);
 351       OUT_BATCH(clear_val);
 352       ADVANCE_BATCH();
 353
 354       if (buf == BUFFER_DEPTH || buf == BUFFER_STENCIL)
 355          mask &= ~(BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
 356       else
 357          mask &= ~bufBit;    /* turn off bit, for faster loop exit */
 358    }
 359 }
 360
 361 GLboolean
 362 intelEmitImmediateColorExpandBlit(struct intel_context *intel,
 363                                   GLuint cpp,
 364                                   GLubyte *src_bits, GLuint src_size,
 365                                   GLuint fg_color,
 366                                   GLshort dst_pitch,
 367                                   dri_bo *dst_buffer,
 368                                   GLuint dst_offset,
 369                                   uint32_t dst_tiling,
 370                                   GLshort x, GLshort y,
 371                                   GLshort w, GLshort h,
 372                                   GLenum logic_op)
 373 {
 374    int dwords = ALIGN(src_size, 8) / 4;
 375    uint32_t opcode, br13, blit_cmd;
 376
 377    if (dst_tiling != I915_TILING_NONE) {
 378       if (dst_offset & 4095)
 379          return GL_FALSE;
 380       if (dst_tiling == I915_TILING_Y)
 381          return GL_FALSE;
 382    }
 383
 384    assert( logic_op - GL_CLEAR >= 0 );
 385    assert( logic_op - GL_CLEAR < 0x10 );
 386    assert(dst_pitch > 0);
 387
 388    if (w < 0 || h < 0)
 389       return GL_TRUE;
 390
 391    dst_pitch *= cpp;
 392
 393    DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d, %d bytes %d dwords\n",
 394        __FUNCTION__,
 395        dst_buffer, dst_pitch, dst_offset, x, y, w, h, src_size, dwords);
 396
 397    intel_batchbuffer_require_space( intel->batch,
 398                                     (8 * 4) +
 399                                     (3 * 4) +
 400                                     dwords * 4 );
 401
 402    opcode = XY_SETUP_BLT_CMD;
 403    if (cpp == 4)
 404       opcode |= XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB;
 405 #ifndef I915
 406    if (dst_tiling != I915_TILING_NONE) {
 407       opcode |= XY_DST_TILED;
 408       dst_pitch /= 4;
 409    }
 410 #endif
 411
 412    br13 = dst_pitch | (translate_raster_op(logic_op) << 16) | (1 << 29);
 413    if (cpp == 2)
 414       br13 |= BR13_565;
 415    else
 416       br13 |= BR13_8888;
 417
 418    blit_cmd = XY_TEXT_IMMEDIATE_BLIT_CMD | XY_TEXT_BYTE_PACKED; /* packing? */
 419    if (dst_tiling != I915_TILING_NONE)
 420       blit_cmd |= XY_DST_TILED;
 421
 422    BEGIN_BATCH(8 + 3);
 423    OUT_BATCH(opcode);
 424    OUT_BATCH(br13);
 425    OUT_BATCH((0 << 16) | 0); /* clip x1, y1 */
 426    OUT_BATCH((100 << 16) | 100); /* clip x2, y2 */
 427    OUT_RELOC(dst_buffer,
 428              I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
 429              dst_offset);
 430    OUT_BATCH(0); /* bg */
 431    OUT_BATCH(fg_color); /* fg */
 432    OUT_BATCH(0); /* pattern base addr */
 433
 434    OUT_BATCH(blit_cmd | ((3 - 2) + dwords));
 435    OUT_BATCH((y << 16) | x);
 436    OUT_BATCH(((y + h) << 16) | (x + w));
 437    ADVANCE_BATCH();
 438
 439    intel_batchbuffer_data( intel->batch,
 440                            src_bits,
 441                            dwords * 4 );
 442
 443    intel_batchbuffer_emit_mi_flush(intel->batch);
 444
 445    return GL_TRUE;
 446 }
 447
 448 /* We don't have a memmove-type blit like some other hardware, so we'll do a
 449  * rectangular blit covering a large space, then emit 1-scanline blit at the
 450  * end to cover the last if we need.
 451  */
 452 void
 453 intel_emit_linear_blit(struct intel_context *intel,
 454                        drm_intel_bo *dst_bo,
 455                        unsigned int dst_offset,
 456                        drm_intel_bo *src_bo,
 457                        unsigned int src_offset,
 458                        unsigned int size)
 459 {
 460    GLuint pitch, height;
 461
 462    /* The pitch is a signed value. */
 463    pitch = MIN2(size, (1 << 15) - 1);
 464    height = size / pitch;
 465    intelEmitCopyBlit(intel, 1,
 466                      pitch, src_bo, src_offset, I915_TILING_NONE,
 467                      pitch, dst_bo, dst_offset, I915_TILING_NONE,
 468                      0, 0, /* src x/y */
 469                      0, 0, /* dst x/y */
 470                      pitch, height, /* w, h */
 471                      GL_COPY);
 472
 473    src_offset += pitch * height;
 474    dst_offset += pitch * height;
 475    size -= pitch * height;
 476    assert (size < (1 << 15));
 477    if (size != 0) {
 478       intelEmitCopyBlit(intel, 1,
 479                         size, src_bo, src_offset, I915_TILING_NONE,
 480                         size, dst_bo, dst_offset, I915_TILING_NONE,
 481                         0, 0, /* src x/y */
 482                         0, 0, /* dst x/y */
 483                         size, 1, /* w, h */
 484                         GL_COPY);
 485    }
 486 }