src/gallium/state_trackers/xorg/xorg_renderer.c

   1 #include "xorg_exa.h"
   2 #include "xorg_renderer.h"
   3
   4 #include "xorg_exa_tgsi.h"
   5
   6 #include "cso_cache/cso_context.h"
   7 #include "util/u_draw_quad.h"
   8 #include "util/u_math.h"
   9 #include "util/u_memory.h"
  10 #include "util/u_rect.h"
  11
  12 #include "pipe/p_inlines.h"
  13
  14 #include <math.h>
  15
  16 enum AxisOrientation {
  17    Y0_BOTTOM,
  18    Y0_TOP
  19 };
  20
  21 #define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y)))
  22 #define floatIsZero(x) (floatsEqual((x) + 1, 1))
  23
  24 #define NUM_COMPONENTS 4
  25
  26 static INLINE boolean is_affine(float *matrix)
  27 {
  28    return floatIsZero(matrix[2]) && floatIsZero(matrix[5])
  29       && floatsEqual(matrix[8], 1);
  30 }
  31 static INLINE void map_point(float *mat, float x, float y,
  32                              float *out_x, float *out_y)
  33 {
  34    if (!mat) {
  35       *out_x = x;
  36       *out_y = y;
  37       return;
  38    }
  39
  40    *out_x = mat[0]*x + mat[3]*y + mat[6];
  41    *out_y = mat[1]*x + mat[4]*y + mat[7];
  42    if (!is_affine(mat)) {
  43       float w = 1/(mat[2]*x + mat[5]*y + mat[8]);
  44       *out_x *= w;
  45       *out_y *= w;
  46    }
  47 }
  48
  49 static INLINE struct pipe_buffer *
  50 renderer_buffer_create(struct xorg_renderer *r)
  51 {
  52    struct pipe_buffer *buf =
  53       pipe_user_buffer_create(r->pipe->screen,
  54                               r->buffer,
  55                               sizeof(float)*
  56                               r->buffer_size);
  57    r->buffer_size = 0;
  58
  59    return buf;
  60 }
  61
  62 static INLINE void
  63 renderer_draw(struct xorg_renderer *r)
  64 {
  65    struct pipe_context *pipe = r->pipe;
  66    struct pipe_buffer *buf = 0;
  67    int num_verts = r->buffer_size/(r->attrs_per_vertex * NUM_COMPONENTS);
  68
  69    if (!r->buffer_size)
  70       return;
  71
  72    buf = renderer_buffer_create(r);
  73
  74
  75    if (buf) {
  76       util_draw_vertex_buffer(pipe, buf, 0,
  77                               PIPE_PRIM_QUADS,
  78                               num_verts,  /* verts */
  79                               r->attrs_per_vertex); /* attribs/vert */
  80
  81       pipe_buffer_reference(&buf, NULL);
  82       pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
  83    }
  84 }
  85
  86 static INLINE void
  87 renderer_draw_conditional(struct xorg_renderer *r,
  88                           int next_batch)
  89 {
  90    if (r->buffer_size + next_batch >= BUF_SIZE ||
  91        (next_batch == 0 && r->buffer_size)) {
  92       renderer_draw(r);
  93    }
  94 }
  95
  96 static void
  97 renderer_init_state(struct xorg_renderer *r)
  98 {
  99    struct pipe_depth_stencil_alpha_state dsa;
 100    struct pipe_rasterizer_state raster;
 101
 102    /* set common initial clip state */
 103    memset(&dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state));
 104    cso_set_depth_stencil_alpha(r->cso, &dsa);
 105
 106
 107    /* XXX: move to renderer_init_state? */
 108    memset(&raster, 0, sizeof(struct pipe_rasterizer_state));
 109    raster.gl_rasterization_rules = 1;
 110    cso_set_rasterizer(r->cso, &raster);
 111
 112 }
 113
 114
 115 static INLINE void
 116 add_vertex_color(struct xorg_renderer *r,
 117                  float x, float y,
 118                  float color[4])
 119 {
 120    float *vertex = r->buffer + r->buffer_size;
 121
 122    vertex[0] = x;
 123    vertex[1] = y;
 124    vertex[2] = 0.f; /*z*/
 125    vertex[3] = 1.f; /*w*/
 126
 127    vertex[4] = color[0]; /*r*/
 128    vertex[5] = color[1]; /*g*/
 129    vertex[6] = color[2]; /*b*/
 130    vertex[7] = color[3]; /*a*/
 131
 132    r->buffer_size += 8;
 133 }
 134
 135 static INLINE void
 136 add_vertex_1tex(struct xorg_renderer *r,
 137                 float x, float y, float s, float t)
 138 {
 139    float *vertex = r->buffer + r->buffer_size;
 140
 141    vertex[0] = x;
 142    vertex[1] = y;
 143    vertex[2] = 0.f; /*z*/
 144    vertex[3] = 1.f; /*w*/
 145
 146    vertex[4] = s;   /*s*/
 147    vertex[5] = t;   /*t*/
 148    vertex[6] = 0.f; /*r*/
 149    vertex[7] = 1.f; /*q*/
 150
 151    r->buffer_size += 8;
 152 }
 153
 154 static void
 155 add_vertex_data1(struct xorg_renderer *r,
 156                  float srcX, float srcY,  float dstX, float dstY,
 157                  float width, float height,
 158                  struct pipe_texture *src, float *src_matrix)
 159 {
 160    float s0, t0, s1, t1, s2, t2, s3, t3;
 161    float pt0[2], pt1[2], pt2[2], pt3[2];
 162
 163    pt0[0] = srcX;
 164    pt0[1] = srcY;
 165    pt1[0] = (srcX + width);
 166    pt1[1] = srcY;
 167    pt2[0] = (srcX + width);
 168    pt2[1] = (srcY + height);
 169    pt3[0] = srcX;
 170    pt3[1] = (srcY + height);
 171
 172    if (src_matrix) {
 173       map_point(src_matrix, pt0[0], pt0[1], &pt0[0], &pt0[1]);
 174       map_point(src_matrix, pt1[0], pt1[1], &pt1[0], &pt1[1]);
 175       map_point(src_matrix, pt2[0], pt2[1], &pt2[0], &pt2[1]);
 176       map_point(src_matrix, pt3[0], pt3[1], &pt3[0], &pt3[1]);
 177    }
 178
 179    s0 =  pt0[0] / src->width[0];
 180    s1 =  pt1[0] / src->width[0];
 181    s2 =  pt2[0] / src->width[0];
 182    s3 =  pt3[0] / src->width[0];
 183    t0 =  pt0[1] / src->height[0];
 184    t1 =  pt1[1] / src->height[0];
 185    t2 =  pt2[1] / src->height[0];
 186    t3 =  pt3[1] / src->height[0];
 187
 188    /* 1st vertex */
 189    add_vertex_1tex(r, dstX, dstY, s0, t0);
 190    /* 2nd vertex */
 191    add_vertex_1tex(r, dstX + width, dstY, s1, t1);
 192    /* 3rd vertex */
 193    add_vertex_1tex(r, dstX + width, dstY + height, s2, t2);
 194    /* 4th vertex */
 195    add_vertex_1tex(r, dstX, dstY + height, s3, t3);
 196 }
 197
 198 static struct pipe_buffer *
 199 setup_vertex_data_tex(struct xorg_renderer *r,
 200                       float x0, float y0, float x1, float y1,
 201                       float s0, float t0, float s1, float t1,
 202                       float z)
 203 {
 204    /* 1st vertex */
 205    add_vertex_1tex(r, x0, y0, s0, t0);
 206    /* 2nd vertex */
 207    add_vertex_1tex(r, x1, y0, s1, t0);
 208    /* 3rd vertex */
 209    add_vertex_1tex(r, x1, y1, s1, t1);
 210    /* 4th vertex */
 211    add_vertex_1tex(r, x0, y1, s0, t1);
 212
 213    return renderer_buffer_create(r);
 214 }
 215
 216 static INLINE void
 217 add_vertex_2tex(struct xorg_renderer *r,
 218                 float x, float y,
 219                 float s0, float t0, float s1, float t1)
 220 {
 221    float *vertex = r->buffer + r->buffer_size;
 222
 223    vertex[0] = x;
 224    vertex[1] = y;
 225    vertex[2] = 0.f; /*z*/
 226    vertex[3] = 1.f; /*w*/
 227
 228    vertex[4] = s0;  /*s*/
 229    vertex[5] = t0;  /*t*/
 230    vertex[6] = 0.f; /*r*/
 231    vertex[7] = 1.f; /*q*/
 232
 233    vertex[8] = s1;  /*s*/
 234    vertex[9] = t1;  /*t*/
 235    vertex[10] = 0.f; /*r*/
 236    vertex[11] = 1.f; /*q*/
 237
 238    r->buffer_size += 12;
 239 }
 240
 241 static void
 242 add_vertex_data2(struct xorg_renderer *r,
 243                  float srcX, float srcY, float maskX, float maskY,
 244                  float dstX, float dstY, float width, float height,
 245                  struct pipe_texture *src,
 246                  struct pipe_texture *mask,
 247                  float *src_matrix, float *mask_matrix)
 248 {
 249    float src_s0, src_t0, src_s1, src_t1;
 250    float mask_s0, mask_t0, mask_s1, mask_t1;
 251    float spt0[2], spt1[2];
 252    float mpt0[2], mpt1[2];
 253
 254    spt0[0] = srcX;
 255    spt0[1] = srcY;
 256    spt1[0] = srcX + width;
 257    spt1[1] = srcY + height;
 258
 259    mpt0[0] = maskX;
 260    mpt0[1] = maskY;
 261    mpt1[0] = maskX + width;
 262    mpt1[1] = maskY + height;
 263
 264    if (src_matrix) {
 265       map_point(src_matrix, spt0[0], spt0[1], &spt0[0], &spt0[1]);
 266       map_point(src_matrix, spt1[0], spt1[1], &spt1[0], &spt1[1]);
 267    }
 268
 269    if (mask_matrix) {
 270       map_point(mask_matrix, mpt0[0], mpt0[1], &mpt0[0], &mpt0[1]);
 271       map_point(mask_matrix, mpt1[0], mpt1[1], &mpt1[0], &mpt1[1]);
 272    }
 273
 274    src_s0 = spt0[0] / src->width[0];
 275    src_t0 = spt0[1] / src->height[0];
 276    src_s1 = spt1[0] / src->width[0];
 277    src_t1 = spt1[1] / src->height[0];
 278
 279    mask_s0 = mpt0[0] / mask->width[0];
 280    mask_t0 = mpt0[1] / mask->height[0];
 281    mask_s1 = mpt1[0] / mask->width[0];
 282    mask_t1 = mpt1[1] / mask->height[0];
 283
 284    /* 1st vertex */
 285    add_vertex_2tex(r, dstX, dstY,
 286                    src_s0, src_t0, mask_s0, mask_t0);
 287    /* 2nd vertex */
 288    add_vertex_2tex(r, dstX + width, dstY,
 289                    src_s1, src_t0, mask_s1, mask_t0);
 290    /* 3rd vertex */
 291    add_vertex_2tex(r, dstX + width, dstY + height,
 292                    src_s1, src_t1, mask_s1, mask_t1);
 293    /* 4th vertex */
 294    add_vertex_2tex(r, dstX, dstY + height,
 295                    src_s0, src_t1, mask_s0, mask_t1);
 296 }
 297
 298 static struct pipe_buffer *
 299 setup_vertex_data_yuv(struct xorg_renderer *r,
 300                       float srcX, float srcY, float srcW, float srcH,
 301                       float dstX, float dstY, float dstW, float dstH,
 302                       struct pipe_texture **tex)
 303 {
 304    float s0, t0, s1, t1;
 305    float spt0[2], spt1[2];
 306
 307    spt0[0] = srcX;
 308    spt0[1] = srcY;
 309    spt1[0] = srcX + srcW;
 310    spt1[1] = srcY + srcH;
 311
 312    s0 = spt0[0] / tex[0]->width[0];
 313    t0 = spt0[1] / tex[0]->height[0];
 314    s1 = spt1[0] / tex[0]->width[0];
 315    t1 = spt1[1] / tex[0]->height[0];
 316
 317    /* 1st vertex */
 318    add_vertex_1tex(r, dstX, dstY, s0, t0);
 319    /* 2nd vertex */
 320    add_vertex_1tex(r, dstX + dstW, dstY,
 321                    s1, t0);
 322    /* 3rd vertex */
 323    add_vertex_1tex(r, dstX + dstW, dstY + dstH,
 324                    s1, t1);
 325    /* 4th vertex */
 326    add_vertex_1tex(r, dstX, dstY + dstH,
 327                    s0, t1);
 328
 329    return renderer_buffer_create(r);
 330 }
 331
 332
 333
 334 /* Set up framebuffer, viewport and vertex shader constant buffer
 335  * state for a particular destinaton surface.  In all our rendering,
 336  * these concepts are linked.
 337  */
 338 void renderer_bind_destination(struct xorg_renderer *r,
 339                                struct pipe_surface *surface )
 340 {
 341
 342    struct pipe_framebuffer_state fb;
 343    struct pipe_viewport_state viewport;
 344    int width = surface->width;
 345    int height = surface->height;
 346
 347    memset(&fb, 0, sizeof fb);
 348    fb.width  = width;
 349    fb.height = height;
 350    fb.nr_cbufs = 1;
 351    fb.cbufs[0] = surface;
 352    fb.zsbuf = 0;
 353
 354    viewport.scale[0] =  width / 2.f;
 355    viewport.scale[1] =  height / 2.f;
 356    viewport.scale[2] =  1.0;
 357    viewport.scale[3] =  1.0;
 358    viewport.translate[0] = width / 2.f;
 359    viewport.translate[1] = height / 2.f;
 360    viewport.translate[2] = 0.0;
 361    viewport.translate[3] = 0.0;
 362
 363    if (r->fb_width != width ||
 364        r->fb_height != height)
 365    {
 366       float vs_consts[8] = {
 367          2.f/width, 2.f/height, 1, 1,
 368          -1, -1, 0, 0
 369       };
 370
 371       r->fb_width = width;
 372       r->fb_height = height;
 373
 374       renderer_set_constants(r, PIPE_SHADER_VERTEX,
 375                              vs_consts, sizeof vs_consts);
 376    }
 377
 378    cso_set_framebuffer(r->cso, &fb);
 379    cso_set_viewport(r->cso, &viewport);
 380 }
 381
 382
 383 struct xorg_renderer * renderer_create(struct pipe_context *pipe)
 384 {
 385    struct xorg_renderer *renderer = CALLOC_STRUCT(xorg_renderer);
 386
 387    renderer->pipe = pipe;
 388    renderer->cso = cso_create_context(pipe);
 389    renderer->shaders = xorg_shaders_create(renderer);
 390
 391    renderer_init_state(renderer);
 392
 393    return renderer;
 394 }
 395
 396 void renderer_destroy(struct xorg_renderer *r)
 397 {
 398    struct pipe_constant_buffer *vsbuf = &r->vs_const_buffer;
 399    struct pipe_constant_buffer *fsbuf = &r->fs_const_buffer;
 400
 401    if (vsbuf && vsbuf->buffer)
 402       pipe_buffer_reference(&vsbuf->buffer, NULL);
 403
 404    if (fsbuf && fsbuf->buffer)
 405       pipe_buffer_reference(&fsbuf->buffer, NULL);
 406
 407    if (r->shaders) {
 408       xorg_shaders_destroy(r->shaders);
 409       r->shaders = NULL;
 410    }
 411
 412    if (r->cso) {
 413       cso_release_all(r->cso);
 414       cso_destroy_context(r->cso);
 415       r->cso = NULL;
 416    }
 417 }
 418
 419
 420
 421
 422
 423 void renderer_set_constants(struct xorg_renderer *r,
 424                             int shader_type,
 425                             const float *params,
 426                             int param_bytes)
 427 {
 428    struct pipe_constant_buffer *cbuf =
 429       (shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer :
 430       &r->fs_const_buffer;
 431
 432    pipe_buffer_reference(&cbuf->buffer, NULL);
 433    cbuf->buffer = pipe_buffer_create(r->pipe->screen, 16,
 434                                      PIPE_BUFFER_USAGE_CONSTANT,
 435                                      param_bytes);
 436
 437    if (cbuf->buffer) {
 438       pipe_buffer_write(r->pipe->screen, cbuf->buffer,
 439                         0, param_bytes, params);
 440    }
 441    r->pipe->set_constant_buffer(r->pipe, shader_type, 0, cbuf);
 442 }
 443
 444
 445 static void renderer_copy_texture(struct xorg_renderer *r,
 446                                   struct pipe_texture *src,
 447                                   float sx1, float sy1,
 448                                   float sx2, float sy2,
 449                                   struct pipe_texture *dst,
 450                                   float dx1, float dy1,
 451                                   float dx2, float dy2)
 452 {
 453    struct pipe_context *pipe = r->pipe;
 454    struct pipe_screen *screen = pipe->screen;
 455    struct pipe_buffer *buf;
 456    struct pipe_surface *dst_surf = screen->get_tex_surface(
 457       screen, dst, 0, 0, 0,
 458       PIPE_BUFFER_USAGE_GPU_WRITE);
 459    float s0, t0, s1, t1;
 460    struct xorg_shader shader;
 461
 462    assert(src->width[0] != 0);
 463    assert(src->height[0] != 0);
 464    assert(dst->width[0] != 0);
 465    assert(dst->height[0] != 0);
 466
 467 #if 1
 468    s0 = sx1 / src->width[0];
 469    s1 = sx2 / src->width[0];
 470    t0 = sy1 / src->height[0];
 471    t1 = sy2 / src->height[0];
 472 #else
 473    s0 = 0;
 474    s1 = 1;
 475    t0 = 0;
 476    t1 = 1;
 477 #endif
 478
 479 #if 0
 480    debug_printf("copy texture src=[%f, %f, %f, %f], dst=[%f, %f, %f, %f], tex=[%f, %f, %f, %f]\n",
 481                 sx1, sy1, sx2, sy2, dx1, dy1, dx2, dy2,
 482                 s0, t0, s1, t1);
 483 #endif
 484
 485    assert(screen->is_format_supported(screen, dst_surf->format,
 486                                       PIPE_TEXTURE_2D,
 487                                       PIPE_TEXTURE_USAGE_RENDER_TARGET,
 488                                       0));
 489
 490
 491    /* set misc state we care about */
 492    {
 493       struct pipe_blend_state blend;
 494       memset(&blend, 0, sizeof(blend));
 495       blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 496       blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 497       blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
 498       blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
 499       blend.colormask = PIPE_MASK_RGBA;
 500       cso_set_blend(r->cso, &blend);
 501    }
 502
 503    /* sampler */
 504    {
 505       struct pipe_sampler_state sampler;
 506       memset(&sampler, 0, sizeof(sampler));
 507       sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 508       sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 509       sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 510       sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
 511       sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
 512       sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
 513       sampler.normalized_coords = 1;
 514       cso_single_sampler(r->cso, 0, &sampler);
 515       cso_single_sampler_done(r->cso);
 516    }
 517
 518    renderer_bind_destination(r, dst_surf);
 519
 520    /* texture */
 521    cso_set_sampler_textures(r->cso, 1, &src);
 522
 523    /* shaders */
 524    shader = xorg_shaders_get(r->shaders,
 525                              VS_COMPOSITE,
 526                              FS_COMPOSITE);
 527    cso_set_vertex_shader_handle(r->cso, shader.vs);
 528    cso_set_fragment_shader_handle(r->cso, shader.fs);
 529
 530    /* draw quad */
 531    buf = setup_vertex_data_tex(r,
 532                                dx1, dy1,
 533                                dx2, dy2,
 534                                s0, t0, s1, t1,
 535                                0.0f);
 536
 537    if (buf) {
 538       util_draw_vertex_buffer(r->pipe, buf, 0,
 539                               PIPE_PRIM_QUADS,
 540                               4,  /* verts */
 541                               2); /* attribs/vert */
 542
 543       pipe_buffer_reference(&buf, NULL);
 544    }
 545
 546    pipe_surface_reference(&dst_surf, NULL);
 547 }
 548
 549 static struct pipe_texture *
 550 create_sampler_texture(struct xorg_renderer *r,
 551                        struct pipe_texture *src)
 552 {
 553    enum pipe_format format;
 554    struct pipe_context *pipe = r->pipe;
 555    struct pipe_screen *screen = pipe->screen;
 556    struct pipe_texture *pt;
 557    struct pipe_texture templ;
 558
 559    pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
 560
 561    /* the coming in texture should already have that invariance */
 562    debug_assert(screen->is_format_supported(screen, src->format,
 563                                             PIPE_TEXTURE_2D,
 564                                             PIPE_TEXTURE_USAGE_SAMPLER, 0));
 565
 566    format = src->format;
 567
 568    memset(&templ, 0, sizeof(templ));
 569    templ.target = PIPE_TEXTURE_2D;
 570    templ.format = format;
 571    templ.last_level = 0;
 572    templ.width[0] = src->width[0];
 573    templ.height[0] = src->height[0];
 574    templ.depth[0] = 1;
 575    pf_get_block(format, &templ.block);
 576    templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
 577
 578    pt = screen->texture_create(screen, &templ);
 579
 580    debug_assert(!pt || pipe_is_referenced(&pt->reference));
 581
 582    if (!pt)
 583       return NULL;
 584
 585    {
 586       /* copy source framebuffer surface into texture */
 587       struct pipe_surface *ps_read = screen->get_tex_surface(
 588          screen, src, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_READ);
 589       struct pipe_surface *ps_tex = screen->get_tex_surface(
 590          screen, pt, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE );
 591       if (pipe->surface_copy) {
 592          pipe->surface_copy(pipe,
 593                 ps_tex, /* dest */
 594                 0, 0, /* destx/y */
 595                 ps_read,
 596                 0, 0, src->width[0], src->height[0]);
 597       } else {
 598           util_surface_copy(pipe, FALSE,
 599                 ps_tex, /* dest */
 600                 0, 0, /* destx/y */
 601                 ps_read,
 602                 0, 0, src->width[0], src->height[0]);
 603       }
 604       pipe_surface_reference(&ps_read, NULL);
 605       pipe_surface_reference(&ps_tex, NULL);
 606    }
 607
 608    return pt;
 609 }
 610
 611
 612 void renderer_copy_pixmap(struct xorg_renderer *r,
 613                           struct exa_pixmap_priv *dst_priv, int dx, int dy,
 614                           struct exa_pixmap_priv *src_priv, int sx, int sy,
 615                           int width, int height)
 616 {
 617    float dst_loc[4], src_loc[4];
 618    struct pipe_texture *dst = dst_priv->tex;
 619    struct pipe_texture *src = src_priv->tex;
 620
 621    if (r->pipe->is_texture_referenced(r->pipe, src, 0, 0) &
 622        PIPE_REFERENCED_FOR_WRITE)
 623       r->pipe->flush(r->pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
 624
 625    dst_loc[0] = dx;
 626    dst_loc[1] = dy;
 627    dst_loc[2] = width;
 628    dst_loc[3] = height;
 629
 630    src_loc[0] = sx;
 631    src_loc[1] = sy;
 632    src_loc[2] = width;
 633    src_loc[3] = height;
 634
 635    if (src_loc[2] >= 0 && src_loc[3] >= 0 &&
 636        dst_loc[2] >= 0 && dst_loc[3] >= 0) {
 637       struct pipe_texture *temp_src = src;
 638
 639       if (src == dst)
 640          temp_src = create_sampler_texture(r, src);
 641
 642       renderer_copy_texture(r,
 643                             temp_src,
 644                             src_loc[0],
 645                             src_loc[1],
 646                             src_loc[0] + src_loc[2],
 647                             src_loc[1] + src_loc[3],
 648                             dst,
 649                             dst_loc[0],
 650                             dst_loc[1],
 651                             dst_loc[0] + dst_loc[2],
 652                             dst_loc[1] + dst_loc[3]);
 653
 654       if (src == dst)
 655          pipe_texture_reference(&temp_src, NULL);
 656    }
 657 }
 658
 659 void renderer_draw_yuv(struct xorg_renderer *r,
 660                        int src_x, int src_y, int src_w, int src_h,
 661                        int dst_x, int dst_y, int dst_w, int dst_h,
 662                        struct pipe_texture **textures)
 663 {
 664    struct pipe_context *pipe = r->pipe;
 665    struct pipe_buffer *buf = 0;
 666
 667    buf = setup_vertex_data_yuv(r,
 668                                src_x, src_y, src_w, src_h,
 669                                dst_x, dst_y, dst_w, dst_h,
 670                                textures);
 671
 672    if (buf) {
 673       const int num_attribs = 2; /*pos + tex coord*/
 674
 675       util_draw_vertex_buffer(pipe, buf, 0,
 676                               PIPE_PRIM_QUADS,
 677                               4,  /* verts */
 678                               num_attribs); /* attribs/vert */
 679
 680       pipe_buffer_reference(&buf, NULL);
 681    }
 682 }
 683
 684 void renderer_begin_solid(struct xorg_renderer *r)
 685 {
 686    r->buffer_size = 0;
 687    r->attrs_per_vertex = 2;
 688 }
 689
 690 void renderer_solid(struct xorg_renderer *r,
 691                     int x0, int y0,
 692                     int x1, int y1,
 693                     float *color)
 694 {
 695    /*
 696    debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n",
 697    x0, y0, x1, y1, color[0], color[1], color[2], color[3]);*/
 698
 699    renderer_draw_conditional(r, 4 * 8);
 700
 701    /* 1st vertex */
 702    add_vertex_color(r, x0, y0, color);
 703    /* 2nd vertex */
 704    add_vertex_color(r, x1, y0, color);
 705    /* 3rd vertex */
 706    add_vertex_color(r, x1, y1, color);
 707    /* 4th vertex */
 708    add_vertex_color(r, x0, y1, color);
 709 }
 710
 711 void renderer_draw_flush(struct xorg_renderer *r)
 712 {
 713    renderer_draw_conditional(r, 0);
 714 }
 715
 716 void renderer_begin_textures(struct xorg_renderer *r,
 717                              struct pipe_texture **textures,
 718                              int num_textures)
 719 {
 720    r->attrs_per_vertex = 1 + num_textures;
 721    r->buffer_size = 0;
 722 }
 723
 724 void renderer_texture(struct xorg_renderer *r,
 725                       int *pos,
 726                       int width, int height,
 727                       struct pipe_texture **textures,
 728                       int num_textures,
 729                       float *src_matrix,
 730                       float *mask_matrix)
 731 {
 732
 733 #if 0
 734    if (src_matrix) {
 735       debug_printf("src_matrix = \n");
 736       debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]);
 737       debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]);
 738       debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]);
 739    }
 740    if (mask_matrix) {
 741       debug_printf("mask_matrix = \n");
 742       debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]);
 743       debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]);
 744       debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]);
 745    }
 746 #endif
 747
 748    switch(r->attrs_per_vertex) {
 749    case 2:
 750       renderer_draw_conditional(r, 4 * 8);
 751       add_vertex_data1(r,
 752                        pos[0], pos[1], /* src */
 753                        pos[4], pos[5], /* dst */
 754                        width, height,
 755                        textures[0], src_matrix);
 756       break;
 757    case 3:
 758       renderer_draw_conditional(r, 4 * 12);
 759       add_vertex_data2(r,
 760                        pos[0], pos[1], /* src */
 761                        pos[2], pos[3], /* mask */
 762                        pos[4], pos[5], /* dst */
 763                        width, height,
 764                        textures[0], textures[1],
 765                        src_matrix, mask_matrix);
 766       break;
 767    default:
 768       debug_assert(!"Unsupported number of textures");
 769       break;
 770    }
 771 }