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      1 /*
      2  * Copyright 2008 Ben Skeggs
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice shall be included in
     12  * all copies or substantial portions of the Software.
     13  *
     14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20  * OTHER DEALINGS IN THE SOFTWARE.
     21  */
     22 
     23 #include <stdint.h>
     24 
     25 #include "pipe/p_defines.h"
     26 
     27 #include "util/u_inlines.h"
     28 #include "util/u_pack_color.h"
     29 #include "util/u_format.h"
     30 #include "util/u_math.h"
     31 #include "util/u_surface.h"
     32 
     33 #include "tgsi/tgsi_ureg.h"
     34 
     35 #include "os/os_thread.h"
     36 
     37 #include "nv50/nv50_context.h"
     38 #include "nv50/nv50_resource.h"
     39 
     40 #include "nv50/g80_defs.xml.h"
     41 #include "nv50/g80_texture.xml.h"
     42 
     43 /* these are used in nv50_blit.h */
     44 #define NV50_ENG2D_SUPPORTED_FORMATS 0xff0843e080608409ULL
     45 #define NV50_ENG2D_NOCONVERT_FORMATS 0x0008402000000000ULL
     46 #define NV50_ENG2D_LUMINANCE_FORMATS 0x0008402000000000ULL
     47 #define NV50_ENG2D_INTENSITY_FORMATS 0x0000000000000000ULL
     48 #define NV50_ENG2D_OPERATION_FORMATS 0x060001c000608000ULL
     49 
     50 #define NOUVEAU_DRIVER 0x50
     51 #include "nv50/nv50_blit.h"
     52 
     53 static inline uint8_t
     54 nv50_2d_format(enum pipe_format format, bool dst, bool dst_src_equal)
     55 {
     56    uint8_t id = nv50_format_table[format].rt;
     57 
     58    /* Hardware values for color formats range from 0xc0 to 0xff,
     59     * but the 2D engine doesn't support all of them.
     60     */
     61    if ((id >= 0xc0) && (NV50_ENG2D_SUPPORTED_FORMATS & (1ULL << (id - 0xc0))))
     62       return id;
     63    assert(dst_src_equal);
     64 
     65    switch (util_format_get_blocksize(format)) {
     66    case 1:
     67       return G80_SURFACE_FORMAT_R8_UNORM;
     68    case 2:
     69       return G80_SURFACE_FORMAT_R16_UNORM;
     70    case 4:
     71       return G80_SURFACE_FORMAT_BGRA8_UNORM;
     72    case 8:
     73       return G80_SURFACE_FORMAT_RGBA16_FLOAT;
     74    case 16:
     75       return G80_SURFACE_FORMAT_RGBA32_FLOAT;
     76    default:
     77       return 0;
     78    }
     79 }
     80 
     81 static int
     82 nv50_2d_texture_set(struct nouveau_pushbuf *push, int dst,
     83                     struct nv50_miptree *mt, unsigned level, unsigned layer,
     84                     enum pipe_format pformat, bool dst_src_pformat_equal)
     85 {
     86    struct nouveau_bo *bo = mt->base.bo;
     87    uint32_t width, height, depth;
     88    uint32_t format;
     89    uint32_t mthd = dst ? NV50_2D_DST_FORMAT : NV50_2D_SRC_FORMAT;
     90    uint32_t offset = mt->level[level].offset;
     91 
     92    format = nv50_2d_format(pformat, dst, dst_src_pformat_equal);
     93    if (!format) {
     94       NOUVEAU_ERR("invalid/unsupported surface format: %s\n",
     95                   util_format_name(pformat));
     96       return 1;
     97    }
     98 
     99    width = u_minify(mt->base.base.width0, level) << mt->ms_x;
    100    height = u_minify(mt->base.base.height0, level) << mt->ms_y;
    101    depth = u_minify(mt->base.base.depth0, level);
    102 
    103    offset = mt->level[level].offset;
    104    if (!mt->layout_3d) {
    105       offset += mt->layer_stride * layer;
    106       depth = 1;
    107       layer = 0;
    108    } else
    109    if (!dst) {
    110       offset += nv50_mt_zslice_offset(mt, level, layer);
    111       layer = 0;
    112    }
    113 
    114    if (!nouveau_bo_memtype(bo)) {
    115       BEGIN_NV04(push, SUBC_2D(mthd), 2);
    116       PUSH_DATA (push, format);
    117       PUSH_DATA (push, 1);
    118       BEGIN_NV04(push, SUBC_2D(mthd + 0x14), 5);
    119       PUSH_DATA (push, mt->level[level].pitch);
    120       PUSH_DATA (push, width);
    121       PUSH_DATA (push, height);
    122       PUSH_DATAh(push, mt->base.address + offset);
    123       PUSH_DATA (push, mt->base.address + offset);
    124    } else {
    125       BEGIN_NV04(push, SUBC_2D(mthd), 5);
    126       PUSH_DATA (push, format);
    127       PUSH_DATA (push, 0);
    128       PUSH_DATA (push, mt->level[level].tile_mode);
    129       PUSH_DATA (push, depth);
    130       PUSH_DATA (push, layer);
    131       BEGIN_NV04(push, SUBC_2D(mthd + 0x18), 4);
    132       PUSH_DATA (push, width);
    133       PUSH_DATA (push, height);
    134       PUSH_DATAh(push, mt->base.address + offset);
    135       PUSH_DATA (push, mt->base.address + offset);
    136    }
    137 
    138 #if 0
    139    if (dst) {
    140       BEGIN_NV04(push, SUBC_2D(NV50_2D_CLIP_X), 4);
    141       PUSH_DATA (push, 0);
    142       PUSH_DATA (push, 0);
    143       PUSH_DATA (push, width);
    144       PUSH_DATA (push, height);
    145    }
    146 #endif
    147    return 0;
    148 }
    149 
    150 static int
    151 nv50_2d_texture_do_copy(struct nouveau_pushbuf *push,
    152                         struct nv50_miptree *dst, unsigned dst_level,
    153                         unsigned dx, unsigned dy, unsigned dz,
    154                         struct nv50_miptree *src, unsigned src_level,
    155                         unsigned sx, unsigned sy, unsigned sz,
    156                         unsigned w, unsigned h)
    157 {
    158    const enum pipe_format dfmt = dst->base.base.format;
    159    const enum pipe_format sfmt = src->base.base.format;
    160    int ret;
    161    bool eqfmt = dfmt == sfmt;
    162 
    163    if (!PUSH_SPACE(push, 2 * 16 + 32))
    164       return PIPE_ERROR;
    165 
    166    ret = nv50_2d_texture_set(push, 1, dst, dst_level, dz, dfmt, eqfmt);
    167    if (ret)
    168       return ret;
    169 
    170    ret = nv50_2d_texture_set(push, 0, src, src_level, sz, sfmt, eqfmt);
    171    if (ret)
    172       return ret;
    173 
    174    BEGIN_NV04(push, NV50_2D(BLIT_CONTROL), 1);
    175    PUSH_DATA (push, NV50_2D_BLIT_CONTROL_FILTER_POINT_SAMPLE);
    176    BEGIN_NV04(push, NV50_2D(BLIT_DST_X), 4);
    177    PUSH_DATA (push, dx << dst->ms_x);
    178    PUSH_DATA (push, dy << dst->ms_y);
    179    PUSH_DATA (push, w << dst->ms_x);
    180    PUSH_DATA (push, h << dst->ms_y);
    181    BEGIN_NV04(push, NV50_2D(BLIT_DU_DX_FRACT), 4);
    182    PUSH_DATA (push, 0);
    183    PUSH_DATA (push, 1);
    184    PUSH_DATA (push, 0);
    185    PUSH_DATA (push, 1);
    186    BEGIN_NV04(push, NV50_2D(BLIT_SRC_X_FRACT), 4);
    187    PUSH_DATA (push, 0);
    188    PUSH_DATA (push, sx << src->ms_x);
    189    PUSH_DATA (push, 0);
    190    PUSH_DATA (push, sy << src->ms_y);
    191 
    192    return 0;
    193 }
    194 
    195 static void
    196 nv50_resource_copy_region(struct pipe_context *pipe,
    197                           struct pipe_resource *dst, unsigned dst_level,
    198                           unsigned dstx, unsigned dsty, unsigned dstz,
    199                           struct pipe_resource *src, unsigned src_level,
    200                           const struct pipe_box *src_box)
    201 {
    202    struct nv50_context *nv50 = nv50_context(pipe);
    203    int ret;
    204    bool m2mf;
    205    unsigned dst_layer = dstz, src_layer = src_box->z;
    206 
    207    if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
    208       nouveau_copy_buffer(&nv50->base,
    209                           nv04_resource(dst), dstx,
    210                           nv04_resource(src), src_box->x, src_box->width);
    211       return;
    212    }
    213 
    214    /* 0 and 1 are equal, only supporting 0/1, 2, 4 and 8 */
    215    assert((src->nr_samples | 1) == (dst->nr_samples | 1));
    216 
    217    m2mf = (src->format == dst->format) ||
    218       (util_format_get_blocksizebits(src->format) ==
    219        util_format_get_blocksizebits(dst->format));
    220 
    221    nv04_resource(dst)->status |= NOUVEAU_BUFFER_STATUS_GPU_WRITING;
    222 
    223    if (m2mf) {
    224       struct nv50_miptree *src_mt = nv50_miptree(src);
    225       struct nv50_miptree *dst_mt = nv50_miptree(dst);
    226       struct nv50_m2mf_rect drect, srect;
    227       unsigned i;
    228       unsigned nx = util_format_get_nblocksx(src->format, src_box->width)
    229          << src_mt->ms_x;
    230       unsigned ny = util_format_get_nblocksy(src->format, src_box->height)
    231          << src_mt->ms_y;
    232 
    233       nv50_m2mf_rect_setup(&drect, dst, dst_level, dstx, dsty, dstz);
    234       nv50_m2mf_rect_setup(&srect, src, src_level,
    235                            src_box->x, src_box->y, src_box->z);
    236 
    237       for (i = 0; i < src_box->depth; ++i) {
    238          nv50_m2mf_transfer_rect(nv50, &drect, &srect, nx, ny);
    239 
    240          if (dst_mt->layout_3d)
    241             drect.z++;
    242          else
    243             drect.base += dst_mt->layer_stride;
    244 
    245          if (src_mt->layout_3d)
    246             srect.z++;
    247          else
    248             srect.base += src_mt->layer_stride;
    249       }
    250       return;
    251    }
    252 
    253    assert((src->format == dst->format) ||
    254           (nv50_2d_src_format_faithful(src->format) &&
    255            nv50_2d_dst_format_faithful(dst->format)));
    256 
    257    BCTX_REFN(nv50->bufctx, 2D, nv04_resource(src), RD);
    258    BCTX_REFN(nv50->bufctx, 2D, nv04_resource(dst), WR);
    259    nouveau_pushbuf_bufctx(nv50->base.pushbuf, nv50->bufctx);
    260    nouveau_pushbuf_validate(nv50->base.pushbuf);
    261 
    262    for (; dst_layer < dstz + src_box->depth; ++dst_layer, ++src_layer) {
    263       ret = nv50_2d_texture_do_copy(nv50->base.pushbuf,
    264                                     nv50_miptree(dst), dst_level,
    265                                     dstx, dsty, dst_layer,
    266                                     nv50_miptree(src), src_level,
    267                                     src_box->x, src_box->y, src_layer,
    268                                     src_box->width, src_box->height);
    269       if (ret)
    270          break;
    271    }
    272    nouveau_bufctx_reset(nv50->bufctx, NV50_BIND_2D);
    273 }
    274 
    275 static void
    276 nv50_clear_render_target(struct pipe_context *pipe,
    277                          struct pipe_surface *dst,
    278                          const union pipe_color_union *color,
    279                          unsigned dstx, unsigned dsty,
    280                          unsigned width, unsigned height,
    281                          bool render_condition_enabled)
    282 {
    283    struct nv50_context *nv50 = nv50_context(pipe);
    284    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    285    struct nv50_miptree *mt = nv50_miptree(dst->texture);
    286    struct nv50_surface *sf = nv50_surface(dst);
    287    struct nouveau_bo *bo = mt->base.bo;
    288    unsigned z;
    289 
    290    assert(dst->texture->target != PIPE_BUFFER);
    291 
    292    BEGIN_NV04(push, NV50_3D(CLEAR_COLOR(0)), 4);
    293    PUSH_DATAf(push, color->f[0]);
    294    PUSH_DATAf(push, color->f[1]);
    295    PUSH_DATAf(push, color->f[2]);
    296    PUSH_DATAf(push, color->f[3]);
    297 
    298    if (nouveau_pushbuf_space(push, 64 + sf->depth, 1, 0))
    299       return;
    300 
    301    PUSH_REFN(push, bo, mt->base.domain | NOUVEAU_BO_WR);
    302 
    303    BEGIN_NV04(push, NV50_3D(SCREEN_SCISSOR_HORIZ), 2);
    304    PUSH_DATA (push, ( width << 16) | dstx);
    305    PUSH_DATA (push, (height << 16) | dsty);
    306    BEGIN_NV04(push, NV50_3D(SCISSOR_HORIZ(0)), 2);
    307    PUSH_DATA (push, 8192 << 16);
    308    PUSH_DATA (push, 8192 << 16);
    309    nv50->scissors_dirty |= 1;
    310 
    311    BEGIN_NV04(push, NV50_3D(RT_CONTROL), 1);
    312    PUSH_DATA (push, 1);
    313    BEGIN_NV04(push, NV50_3D(RT_ADDRESS_HIGH(0)), 5);
    314    PUSH_DATAh(push, mt->base.address + sf->offset);
    315    PUSH_DATA (push, mt->base.address + sf->offset);
    316    PUSH_DATA (push, nv50_format_table[dst->format].rt);
    317    PUSH_DATA (push, mt->level[sf->base.u.tex.level].tile_mode);
    318    PUSH_DATA (push, mt->layer_stride >> 2);
    319    BEGIN_NV04(push, NV50_3D(RT_HORIZ(0)), 2);
    320    if (nouveau_bo_memtype(bo))
    321       PUSH_DATA(push, sf->width);
    322    else
    323       PUSH_DATA(push, NV50_3D_RT_HORIZ_LINEAR | mt->level[0].pitch);
    324    PUSH_DATA (push, sf->height);
    325    BEGIN_NV04(push, NV50_3D(RT_ARRAY_MODE), 1);
    326    if (mt->layout_3d)
    327       PUSH_DATA(push, NV50_3D_RT_ARRAY_MODE_MODE_3D | 512);
    328    else
    329       PUSH_DATA(push, 512);
    330 
    331    BEGIN_NV04(push, NV50_3D(MULTISAMPLE_MODE), 1);
    332    PUSH_DATA (push, mt->ms_mode);
    333 
    334    if (!nouveau_bo_memtype(bo)) {
    335       BEGIN_NV04(push, NV50_3D(ZETA_ENABLE), 1);
    336       PUSH_DATA (push, 0);
    337    }
    338 
    339    /* NOTE: only works with D3D clear flag (5097/0x143c bit 4) */
    340 
    341    BEGIN_NV04(push, NV50_3D(VIEWPORT_HORIZ(0)), 2);
    342    PUSH_DATA (push, (width << 16) | dstx);
    343    PUSH_DATA (push, (height << 16) | dsty);
    344 
    345    if (!render_condition_enabled) {
    346       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
    347       PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
    348    }
    349 
    350    BEGIN_NI04(push, NV50_3D(CLEAR_BUFFERS), sf->depth);
    351    for (z = 0; z < sf->depth; ++z) {
    352       PUSH_DATA (push, 0x3c |
    353                  (z << NV50_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    354    }
    355 
    356    if (!render_condition_enabled) {
    357       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
    358       PUSH_DATA (push, nv50->cond_condmode);
    359    }
    360 
    361    nv50->dirty_3d |= NV50_NEW_3D_FRAMEBUFFER | NV50_NEW_3D_SCISSOR;
    362 }
    363 
    364 static void
    365 nv50_clear_depth_stencil(struct pipe_context *pipe,
    366                          struct pipe_surface *dst,
    367                          unsigned clear_flags,
    368                          double depth,
    369                          unsigned stencil,
    370                          unsigned dstx, unsigned dsty,
    371                          unsigned width, unsigned height,
    372                          bool render_condition_enabled)
    373 {
    374    struct nv50_context *nv50 = nv50_context(pipe);
    375    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    376    struct nv50_miptree *mt = nv50_miptree(dst->texture);
    377    struct nv50_surface *sf = nv50_surface(dst);
    378    struct nouveau_bo *bo = mt->base.bo;
    379    uint32_t mode = 0;
    380    unsigned z;
    381 
    382    assert(dst->texture->target != PIPE_BUFFER);
    383    assert(nouveau_bo_memtype(bo)); /* ZETA cannot be linear */
    384 
    385    if (clear_flags & PIPE_CLEAR_DEPTH) {
    386       BEGIN_NV04(push, NV50_3D(CLEAR_DEPTH), 1);
    387       PUSH_DATAf(push, depth);
    388       mode |= NV50_3D_CLEAR_BUFFERS_Z;
    389    }
    390 
    391    if (clear_flags & PIPE_CLEAR_STENCIL) {
    392       BEGIN_NV04(push, NV50_3D(CLEAR_STENCIL), 1);
    393       PUSH_DATA (push, stencil & 0xff);
    394       mode |= NV50_3D_CLEAR_BUFFERS_S;
    395    }
    396 
    397    if (nouveau_pushbuf_space(push, 64 + sf->depth, 1, 0))
    398       return;
    399 
    400    PUSH_REFN(push, bo, mt->base.domain | NOUVEAU_BO_WR);
    401 
    402    BEGIN_NV04(push, NV50_3D(SCREEN_SCISSOR_HORIZ), 2);
    403    PUSH_DATA (push, ( width << 16) | dstx);
    404    PUSH_DATA (push, (height << 16) | dsty);
    405    BEGIN_NV04(push, NV50_3D(SCISSOR_HORIZ(0)), 2);
    406    PUSH_DATA (push, 8192 << 16);
    407    PUSH_DATA (push, 8192 << 16);
    408    nv50->scissors_dirty |= 1;
    409 
    410    BEGIN_NV04(push, NV50_3D(ZETA_ADDRESS_HIGH), 5);
    411    PUSH_DATAh(push, mt->base.address + sf->offset);
    412    PUSH_DATA (push, mt->base.address + sf->offset);
    413    PUSH_DATA (push, nv50_format_table[dst->format].rt);
    414    PUSH_DATA (push, mt->level[sf->base.u.tex.level].tile_mode);
    415    PUSH_DATA (push, mt->layer_stride >> 2);
    416    BEGIN_NV04(push, NV50_3D(ZETA_ENABLE), 1);
    417    PUSH_DATA (push, 1);
    418    BEGIN_NV04(push, NV50_3D(ZETA_HORIZ), 3);
    419    PUSH_DATA (push, sf->width);
    420    PUSH_DATA (push, sf->height);
    421    PUSH_DATA (push, (1 << 16) | 1);
    422 
    423    BEGIN_NV04(push, NV50_3D(RT_ARRAY_MODE), 1);
    424    PUSH_DATA (push, 512);
    425 
    426    BEGIN_NV04(push, NV50_3D(MULTISAMPLE_MODE), 1);
    427    PUSH_DATA (push, mt->ms_mode);
    428 
    429    BEGIN_NV04(push, NV50_3D(VIEWPORT_HORIZ(0)), 2);
    430    PUSH_DATA (push, (width << 16) | dstx);
    431    PUSH_DATA (push, (height << 16) | dsty);
    432 
    433    if (!render_condition_enabled) {
    434       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
    435       PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
    436    }
    437 
    438    BEGIN_NI04(push, NV50_3D(CLEAR_BUFFERS), sf->depth);
    439    for (z = 0; z < sf->depth; ++z) {
    440       PUSH_DATA (push, mode |
    441                  (z << NV50_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    442    }
    443 
    444    if (!render_condition_enabled) {
    445       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
    446       PUSH_DATA (push, nv50->cond_condmode);
    447    }
    448 
    449    nv50->dirty_3d |= NV50_NEW_3D_FRAMEBUFFER | NV50_NEW_3D_SCISSOR;
    450 }
    451 
    452 void
    453 nv50_clear_texture(struct pipe_context *pipe,
    454                    struct pipe_resource *res,
    455                    unsigned level,
    456                    const struct pipe_box *box,
    457                    const void *data)
    458 {
    459    struct pipe_surface tmpl = {{0}}, *sf;
    460 
    461    tmpl.format = res->format;
    462    tmpl.u.tex.first_layer = box->z;
    463    tmpl.u.tex.last_layer = box->z + box->depth - 1;
    464    tmpl.u.tex.level = level;
    465    sf = pipe->create_surface(pipe, res, &tmpl);
    466    if (!sf)
    467       return;
    468 
    469    if (util_format_is_depth_or_stencil(res->format)) {
    470       float depth = 0;
    471       uint8_t stencil = 0;
    472       unsigned clear = 0;
    473       const struct util_format_description *desc =
    474          util_format_description(res->format);
    475 
    476       if (util_format_has_depth(desc)) {
    477          clear |= PIPE_CLEAR_DEPTH;
    478          desc->unpack_z_float(&depth, 0, data, 0, 1, 1);
    479       }
    480       if (util_format_has_stencil(desc)) {
    481          clear |= PIPE_CLEAR_STENCIL;
    482          desc->unpack_s_8uint(&stencil, 0, data, 0, 1, 1);
    483       }
    484       pipe->clear_depth_stencil(pipe, sf, clear, depth, stencil,
    485                                 box->x, box->y, box->width, box->height, false);
    486    } else {
    487       union pipe_color_union color;
    488 
    489       switch (util_format_get_blocksizebits(res->format)) {
    490       case 128:
    491          sf->format = PIPE_FORMAT_R32G32B32A32_UINT;
    492          memcpy(&color.ui, data, 128 / 8);
    493          break;
    494       case 64:
    495          sf->format = PIPE_FORMAT_R32G32_UINT;
    496          memcpy(&color.ui, data, 64 / 8);
    497          memset(&color.ui[2], 0, 64 / 8);
    498          break;
    499       case 32:
    500          sf->format = PIPE_FORMAT_R32_UINT;
    501          memcpy(&color.ui, data, 32 / 8);
    502          memset(&color.ui[1], 0, 96 / 8);
    503          break;
    504       case 16:
    505          sf->format = PIPE_FORMAT_R16_UINT;
    506          color.ui[0] = util_cpu_to_le32(
    507             util_le16_to_cpu(*(unsigned short *)data));
    508          memset(&color.ui[1], 0, 96 / 8);
    509          break;
    510       case 8:
    511          sf->format = PIPE_FORMAT_R8_UINT;
    512          color.ui[0] = util_cpu_to_le32(*(unsigned char *)data);
    513          memset(&color.ui[1], 0, 96 / 8);
    514          break;
    515       default:
    516          assert(!"Unknown texel element size");
    517          return;
    518       }
    519 
    520       pipe->clear_render_target(pipe, sf, &color,
    521                                 box->x, box->y, box->width, box->height, false);
    522    }
    523    pipe->surface_destroy(pipe, sf);
    524 }
    525 
    526 void
    527 nv50_clear(struct pipe_context *pipe, unsigned buffers,
    528            const union pipe_color_union *color,
    529            double depth, unsigned stencil)
    530 {
    531    struct nv50_context *nv50 = nv50_context(pipe);
    532    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    533    struct pipe_framebuffer_state *fb = &nv50->framebuffer;
    534    unsigned i, j, k;
    535    uint32_t mode = 0;
    536 
    537    /* don't need NEW_BLEND, COLOR_MASK doesn't affect CLEAR_BUFFERS */
    538    if (!nv50_state_validate_3d(nv50, NV50_NEW_3D_FRAMEBUFFER))
    539       return;
    540 
    541    /* We have to clear ALL of the layers, not up to the min number of layers
    542     * of any attachment. */
    543    BEGIN_NV04(push, NV50_3D(RT_ARRAY_MODE), 1);
    544    PUSH_DATA (push, (nv50->rt_array_mode & NV50_3D_RT_ARRAY_MODE_MODE_3D) | 512);
    545 
    546    if (buffers & PIPE_CLEAR_COLOR && fb->nr_cbufs) {
    547       BEGIN_NV04(push, NV50_3D(CLEAR_COLOR(0)), 4);
    548       PUSH_DATAf(push, color->f[0]);
    549       PUSH_DATAf(push, color->f[1]);
    550       PUSH_DATAf(push, color->f[2]);
    551       PUSH_DATAf(push, color->f[3]);
    552       if (buffers & PIPE_CLEAR_COLOR0)
    553          mode =
    554             NV50_3D_CLEAR_BUFFERS_R | NV50_3D_CLEAR_BUFFERS_G |
    555             NV50_3D_CLEAR_BUFFERS_B | NV50_3D_CLEAR_BUFFERS_A;
    556    }
    557 
    558    if (buffers & PIPE_CLEAR_DEPTH) {
    559       BEGIN_NV04(push, NV50_3D(CLEAR_DEPTH), 1);
    560       PUSH_DATA (push, fui(depth));
    561       mode |= NV50_3D_CLEAR_BUFFERS_Z;
    562    }
    563 
    564    if (buffers & PIPE_CLEAR_STENCIL) {
    565       BEGIN_NV04(push, NV50_3D(CLEAR_STENCIL), 1);
    566       PUSH_DATA (push, stencil & 0xff);
    567       mode |= NV50_3D_CLEAR_BUFFERS_S;
    568    }
    569 
    570    if (mode) {
    571       int zs_layers = 0, color0_layers = 0;
    572       if (fb->cbufs[0] && (mode & 0x3c))
    573          color0_layers = nv50_surface(fb->cbufs[0])->depth;
    574       if (fb->zsbuf && (mode & ~0x3c))
    575          zs_layers = nv50_surface(fb->zsbuf)->depth;
    576 
    577       for (j = 0; j < MIN2(zs_layers, color0_layers); j++) {
    578          BEGIN_NV04(push, NV50_3D(CLEAR_BUFFERS), 1);
    579          PUSH_DATA(push, mode | (j << NV50_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    580       }
    581       for (k = j; k < zs_layers; k++) {
    582          BEGIN_NV04(push, NV50_3D(CLEAR_BUFFERS), 1);
    583          PUSH_DATA(push, (mode & ~0x3c) | (k << NV50_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    584       }
    585       for (k = j; k < color0_layers; k++) {
    586          BEGIN_NV04(push, NV50_3D(CLEAR_BUFFERS), 1);
    587          PUSH_DATA(push, (mode & 0x3c) | (k << NV50_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    588       }
    589    }
    590 
    591    for (i = 1; i < fb->nr_cbufs; i++) {
    592       struct pipe_surface *sf = fb->cbufs[i];
    593       if (!sf || !(buffers & (PIPE_CLEAR_COLOR0 << i)))
    594          continue;
    595       for (j = 0; j < nv50_surface(sf)->depth; j++) {
    596          BEGIN_NV04(push, NV50_3D(CLEAR_BUFFERS), 1);
    597          PUSH_DATA (push, (i << 6) | 0x3c |
    598                     (j << NV50_3D_CLEAR_BUFFERS_LAYER__SHIFT));
    599       }
    600    }
    601 
    602    /* restore the array mode */
    603    BEGIN_NV04(push, NV50_3D(RT_ARRAY_MODE), 1);
    604    PUSH_DATA (push, nv50->rt_array_mode);
    605 }
    606 
    607 static void
    608 nv50_clear_buffer_push(struct pipe_context *pipe,
    609                        struct pipe_resource *res,
    610                        unsigned offset, unsigned size,
    611                        const void *data, int data_size)
    612 {
    613    struct nv50_context *nv50 = nv50_context(pipe);
    614    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    615    struct nv04_resource *buf = nv04_resource(res);
    616    unsigned count = (size + 3) / 4;
    617    unsigned xcoord = offset & 0xff;
    618    unsigned tmp, i;
    619 
    620    if (data_size == 1) {
    621       tmp = *(unsigned char *)data;
    622       tmp = (tmp << 24) | (tmp << 16) | (tmp << 8) | tmp;
    623       data = &tmp;
    624       data_size = 4;
    625    } else if (data_size == 2) {
    626       tmp = *(unsigned short *)data;
    627       tmp = (tmp << 16) | tmp;
    628       data = &tmp;
    629       data_size = 4;
    630    }
    631 
    632    unsigned data_words = data_size / 4;
    633 
    634    nouveau_bufctx_refn(nv50->bufctx, 0, buf->bo, buf->domain | NOUVEAU_BO_WR);
    635    nouveau_pushbuf_bufctx(push, nv50->bufctx);
    636    nouveau_pushbuf_validate(push);
    637 
    638    offset &= ~0xff;
    639 
    640    BEGIN_NV04(push, NV50_2D(DST_FORMAT), 2);
    641    PUSH_DATA (push, G80_SURFACE_FORMAT_R8_UNORM);
    642    PUSH_DATA (push, 1);
    643    BEGIN_NV04(push, NV50_2D(DST_PITCH), 5);
    644    PUSH_DATA (push, 262144);
    645    PUSH_DATA (push, 65536);
    646    PUSH_DATA (push, 1);
    647    PUSH_DATAh(push, buf->address + offset);
    648    PUSH_DATA (push, buf->address + offset);
    649    BEGIN_NV04(push, NV50_2D(SIFC_BITMAP_ENABLE), 2);
    650    PUSH_DATA (push, 0);
    651    PUSH_DATA (push, G80_SURFACE_FORMAT_R8_UNORM);
    652    BEGIN_NV04(push, NV50_2D(SIFC_WIDTH), 10);
    653    PUSH_DATA (push, size);
    654    PUSH_DATA (push, 1);
    655    PUSH_DATA (push, 0);
    656    PUSH_DATA (push, 1);
    657    PUSH_DATA (push, 0);
    658    PUSH_DATA (push, 1);
    659    PUSH_DATA (push, 0);
    660    PUSH_DATA (push, xcoord);
    661    PUSH_DATA (push, 0);
    662    PUSH_DATA (push, 0);
    663 
    664    while (count) {
    665       unsigned nr_data = MIN2(count, NV04_PFIFO_MAX_PACKET_LEN) / data_words;
    666       unsigned nr = nr_data * data_words;
    667 
    668       BEGIN_NI04(push, NV50_2D(SIFC_DATA), nr);
    669       for (i = 0; i < nr_data; i++)
    670          PUSH_DATAp(push, data, data_words);
    671 
    672       count -= nr;
    673    }
    674 
    675    if (buf->mm) {
    676       nouveau_fence_ref(nv50->screen->base.fence.current, &buf->fence);
    677       nouveau_fence_ref(nv50->screen->base.fence.current, &buf->fence_wr);
    678    }
    679 
    680    nouveau_bufctx_reset(nv50->bufctx, 0);
    681 }
    682 
    683 static void
    684 nv50_clear_buffer(struct pipe_context *pipe,
    685                   struct pipe_resource *res,
    686                   unsigned offset, unsigned size,
    687                   const void *data, int data_size)
    688 {
    689    struct nv50_context *nv50 = nv50_context(pipe);
    690    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    691    struct nv04_resource *buf = (struct nv04_resource *)res;
    692    union pipe_color_union color;
    693    enum pipe_format dst_fmt;
    694    unsigned width, height, elements;
    695 
    696    assert(res->target == PIPE_BUFFER);
    697    assert(nouveau_bo_memtype(buf->bo) == 0);
    698 
    699    switch (data_size) {
    700    case 16:
    701       dst_fmt = PIPE_FORMAT_R32G32B32A32_UINT;
    702       memcpy(&color.ui, data, 16);
    703       break;
    704    case 8:
    705       dst_fmt = PIPE_FORMAT_R32G32_UINT;
    706       memcpy(&color.ui, data, 8);
    707       memset(&color.ui[2], 0, 8);
    708       break;
    709    case 4:
    710       dst_fmt = PIPE_FORMAT_R32_UINT;
    711       memcpy(&color.ui, data, 4);
    712       memset(&color.ui[1], 0, 12);
    713       break;
    714    case 2:
    715       dst_fmt = PIPE_FORMAT_R16_UINT;
    716       color.ui[0] = util_cpu_to_le32(
    717             util_le16_to_cpu(*(unsigned short *)data));
    718       memset(&color.ui[1], 0, 12);
    719       break;
    720    case 1:
    721       dst_fmt = PIPE_FORMAT_R8_UINT;
    722       color.ui[0] = util_cpu_to_le32(*(unsigned char *)data);
    723       memset(&color.ui[1], 0, 12);
    724       break;
    725    default:
    726       assert(!"Unsupported element size");
    727       return;
    728    }
    729 
    730    assert(size % data_size == 0);
    731 
    732    if (offset & 0xff) {
    733       unsigned fixup_size = MIN2(size, align(offset, 0x100) - offset);
    734       assert(fixup_size % data_size == 0);
    735       nv50_clear_buffer_push(pipe, res, offset, fixup_size, data, data_size);
    736       offset += fixup_size;
    737       size -= fixup_size;
    738       if (!size)
    739          return;
    740    }
    741 
    742    elements = size / data_size;
    743    height = (elements + 8191) / 8192;
    744    width = elements / height;
    745    if (height > 1)
    746       width &= ~0xff;
    747    assert(width > 0);
    748 
    749    BEGIN_NV04(push, NV50_3D(CLEAR_COLOR(0)), 4);
    750    PUSH_DATAf(push, color.f[0]);
    751    PUSH_DATAf(push, color.f[1]);
    752    PUSH_DATAf(push, color.f[2]);
    753    PUSH_DATAf(push, color.f[3]);
    754 
    755    if (nouveau_pushbuf_space(push, 64, 1, 0))
    756       return;
    757 
    758    PUSH_REFN(push, buf->bo, buf->domain | NOUVEAU_BO_WR);
    759 
    760    BEGIN_NV04(push, NV50_3D(SCREEN_SCISSOR_HORIZ), 2);
    761    PUSH_DATA (push, width << 16);
    762    PUSH_DATA (push, height << 16);
    763    BEGIN_NV04(push, NV50_3D(SCISSOR_HORIZ(0)), 2);
    764    PUSH_DATA (push, 8192 << 16);
    765    PUSH_DATA (push, 8192 << 16);
    766    nv50->scissors_dirty |= 1;
    767 
    768    BEGIN_NV04(push, NV50_3D(RT_CONTROL), 1);
    769    PUSH_DATA (push, 1);
    770    BEGIN_NV04(push, NV50_3D(RT_ADDRESS_HIGH(0)), 5);
    771    PUSH_DATAh(push, buf->address + offset);
    772    PUSH_DATA (push, buf->address + offset);
    773    PUSH_DATA (push, nv50_format_table[dst_fmt].rt);
    774    PUSH_DATA (push, 0);
    775    PUSH_DATA (push, 0);
    776    BEGIN_NV04(push, NV50_3D(RT_HORIZ(0)), 2);
    777    PUSH_DATA (push, NV50_3D_RT_HORIZ_LINEAR | align(width * data_size, 0x100));
    778    PUSH_DATA (push, height);
    779    BEGIN_NV04(push, NV50_3D(ZETA_ENABLE), 1);
    780    PUSH_DATA (push, 0);
    781    BEGIN_NV04(push, NV50_3D(MULTISAMPLE_MODE), 1);
    782    PUSH_DATA (push, 0);
    783 
    784    /* NOTE: only works with D3D clear flag (5097/0x143c bit 4) */
    785 
    786    BEGIN_NV04(push, NV50_3D(VIEWPORT_HORIZ(0)), 2);
    787    PUSH_DATA (push, (width << 16));
    788    PUSH_DATA (push, (height << 16));
    789 
    790    BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
    791    PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
    792 
    793    BEGIN_NI04(push, NV50_3D(CLEAR_BUFFERS), 1);
    794    PUSH_DATA (push, 0x3c);
    795 
    796    BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
    797    PUSH_DATA (push, nv50->cond_condmode);
    798 
    799    if (buf->mm) {
    800       nouveau_fence_ref(nv50->screen->base.fence.current, &buf->fence);
    801       nouveau_fence_ref(nv50->screen->base.fence.current, &buf->fence_wr);
    802    }
    803 
    804    if (width * height != elements) {
    805       offset += width * height * data_size;
    806       width = elements - width * height;
    807       nv50_clear_buffer_push(pipe, res, offset, width * data_size,
    808                              data, data_size);
    809    }
    810 
    811    nv50->dirty_3d |= NV50_NEW_3D_FRAMEBUFFER | NV50_NEW_3D_SCISSOR;
    812 }
    813 
    814 /* =============================== BLIT CODE ===================================
    815  */
    816 
    817 struct nv50_blitter
    818 {
    819    struct nv50_program *fp[NV50_BLIT_MAX_TEXTURE_TYPES][NV50_BLIT_MODES];
    820    struct nv50_program vp;
    821 
    822    struct nv50_tsc_entry sampler[2]; /* nearest, bilinear */
    823 
    824    pipe_mutex mutex;
    825 };
    826 
    827 struct nv50_blitctx
    828 {
    829    struct nv50_context *nv50;
    830    struct nv50_program *fp;
    831    uint8_t mode;
    832    uint16_t color_mask;
    833    uint8_t filter;
    834    uint8_t render_condition_enable;
    835    enum pipe_texture_target target;
    836    struct {
    837       struct pipe_framebuffer_state fb;
    838       struct nv50_window_rect_stateobj window_rect;
    839       struct nv50_rasterizer_stateobj *rast;
    840       struct nv50_program *vp;
    841       struct nv50_program *gp;
    842       struct nv50_program *fp;
    843       unsigned num_textures[3];
    844       unsigned num_samplers[3];
    845       struct pipe_sampler_view *texture[2];
    846       struct nv50_tsc_entry *sampler[2];
    847       unsigned min_samples;
    848       uint32_t dirty_3d;
    849    } saved;
    850    struct nv50_rasterizer_stateobj rast;
    851 };
    852 
    853 static void
    854 nv50_blitter_make_vp(struct nv50_blitter *blit)
    855 {
    856    static const uint32_t code[] =
    857    {
    858       0x10000001, 0x0423c788, /* mov b32 o[0x00] s[0x00] */ /* HPOS.x */
    859       0x10000205, 0x0423c788, /* mov b32 o[0x04] s[0x04] */ /* HPOS.y */
    860       0x10000409, 0x0423c788, /* mov b32 o[0x08] s[0x08] */ /* TEXC.x */
    861       0x1000060d, 0x0423c788, /* mov b32 o[0x0c] s[0x0c] */ /* TEXC.y */
    862       0x10000811, 0x0423c789, /* mov b32 o[0x10] s[0x10] */ /* TEXC.z */
    863    };
    864 
    865    blit->vp.type = PIPE_SHADER_VERTEX;
    866    blit->vp.translated = true;
    867    blit->vp.code = (uint32_t *)code; /* const_cast */
    868    blit->vp.code_size = sizeof(code);
    869    blit->vp.max_gpr = 4;
    870    blit->vp.max_out = 5;
    871    blit->vp.out_nr = 2;
    872    blit->vp.out[0].mask = 0x3;
    873    blit->vp.out[0].sn = TGSI_SEMANTIC_POSITION;
    874    blit->vp.out[1].hw = 2;
    875    blit->vp.out[1].mask = 0x7;
    876    blit->vp.out[1].sn = TGSI_SEMANTIC_GENERIC;
    877    blit->vp.out[1].si = 0;
    878    blit->vp.vp.attrs[0] = 0x73;
    879    blit->vp.vp.psiz = 0x40;
    880    blit->vp.vp.edgeflag = 0x40;
    881 }
    882 
    883 void *
    884 nv50_blitter_make_fp(struct pipe_context *pipe,
    885                      unsigned mode,
    886                      enum pipe_texture_target ptarg)
    887 {
    888    struct ureg_program *ureg;
    889    struct ureg_src tc;
    890    struct ureg_dst out;
    891    struct ureg_dst data;
    892 
    893    const unsigned target = nv50_blit_get_tgsi_texture_target(ptarg);
    894 
    895    bool tex_rgbaz = false;
    896    bool tex_s = false;
    897    bool cvt_un8 = false;
    898 
    899    if (mode != NV50_BLIT_MODE_PASS &&
    900        mode != NV50_BLIT_MODE_Z24X8 &&
    901        mode != NV50_BLIT_MODE_X8Z24)
    902       tex_s = true;
    903 
    904    if (mode != NV50_BLIT_MODE_X24S8 &&
    905        mode != NV50_BLIT_MODE_S8X24 &&
    906        mode != NV50_BLIT_MODE_XS)
    907       tex_rgbaz = true;
    908 
    909    if (mode != NV50_BLIT_MODE_PASS &&
    910        mode != NV50_BLIT_MODE_ZS &&
    911        mode != NV50_BLIT_MODE_XS)
    912       cvt_un8 = true;
    913 
    914    ureg = ureg_create(PIPE_SHADER_FRAGMENT);
    915    if (!ureg)
    916       return NULL;
    917 
    918    out = ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 0);
    919    tc = ureg_DECL_fs_input(
    920       ureg, TGSI_SEMANTIC_GENERIC, 0, TGSI_INTERPOLATE_LINEAR);
    921 
    922    if (ptarg == PIPE_TEXTURE_1D_ARRAY) {
    923       /* Adjust coordinates. Depth is in z, but TEX expects it to be in y. */
    924       tc = ureg_swizzle(tc, TGSI_SWIZZLE_X, TGSI_SWIZZLE_Z,
    925                         TGSI_SWIZZLE_Z, TGSI_SWIZZLE_Z);
    926    }
    927 
    928    data = ureg_DECL_temporary(ureg);
    929 
    930    if (tex_s) {
    931       ureg_TEX(ureg, ureg_writemask(data, TGSI_WRITEMASK_X),
    932                target, tc, ureg_DECL_sampler(ureg, 1));
    933       ureg_MOV(ureg, ureg_writemask(data, TGSI_WRITEMASK_Y),
    934                ureg_scalar(ureg_src(data), TGSI_SWIZZLE_X));
    935    }
    936    if (tex_rgbaz) {
    937       const unsigned mask = (mode == NV50_BLIT_MODE_PASS) ?
    938          TGSI_WRITEMASK_XYZW : TGSI_WRITEMASK_X;
    939       ureg_TEX(ureg, ureg_writemask(data, mask),
    940                target, tc, ureg_DECL_sampler(ureg, 0));
    941    }
    942 
    943    if (cvt_un8) {
    944       struct ureg_src mask;
    945       struct ureg_src scale;
    946       struct ureg_dst outz;
    947       struct ureg_dst outs;
    948       struct ureg_dst zdst3 = ureg_writemask(data, TGSI_WRITEMASK_XYZ);
    949       struct ureg_dst zdst = ureg_writemask(data, TGSI_WRITEMASK_X);
    950       struct ureg_dst sdst = ureg_writemask(data, TGSI_WRITEMASK_Y);
    951       struct ureg_src zsrc3 = ureg_src(data);
    952       struct ureg_src zsrc = ureg_scalar(zsrc3, TGSI_SWIZZLE_X);
    953       struct ureg_src ssrc = ureg_scalar(zsrc3, TGSI_SWIZZLE_Y);
    954       struct ureg_src zshuf;
    955 
    956       mask = ureg_imm3u(ureg, 0x0000ff, 0x00ff00, 0xff0000);
    957       scale = ureg_imm4f(ureg,
    958                          1.0f / 0x0000ff, 1.0f / 0x00ff00, 1.0f / 0xff0000,
    959                          (1 << 24) - 1);
    960 
    961       if (mode == NV50_BLIT_MODE_Z24S8 ||
    962           mode == NV50_BLIT_MODE_X24S8 ||
    963           mode == NV50_BLIT_MODE_Z24X8) {
    964          outz = ureg_writemask(out, TGSI_WRITEMASK_XYZ);
    965          outs = ureg_writemask(out, TGSI_WRITEMASK_W);
    966          zshuf = ureg_src(data);
    967       } else {
    968          outz = ureg_writemask(out, TGSI_WRITEMASK_YZW);
    969          outs = ureg_writemask(out, TGSI_WRITEMASK_X);
    970          zshuf = ureg_swizzle(zsrc3, TGSI_SWIZZLE_W,
    971                               TGSI_SWIZZLE_X, TGSI_SWIZZLE_Y, TGSI_SWIZZLE_Z);
    972       }
    973 
    974       if (tex_s) {
    975          ureg_I2F(ureg, sdst, ssrc);
    976          ureg_MUL(ureg, outs, ssrc, ureg_scalar(scale, TGSI_SWIZZLE_X));
    977       }
    978 
    979       if (tex_rgbaz) {
    980          ureg_MUL(ureg, zdst, zsrc, ureg_scalar(scale, TGSI_SWIZZLE_W));
    981          ureg_F2I(ureg, zdst, zsrc);
    982          ureg_AND(ureg, zdst3, zsrc, mask);
    983          ureg_I2F(ureg, zdst3, zsrc3);
    984          ureg_MUL(ureg, zdst3, zsrc3, scale);
    985          ureg_MOV(ureg, outz, zshuf);
    986       }
    987    } else {
    988       unsigned mask = TGSI_WRITEMASK_XYZW;
    989 
    990       if (mode != NV50_BLIT_MODE_PASS) {
    991          mask &= ~TGSI_WRITEMASK_ZW;
    992          if (!tex_s)
    993             mask = TGSI_WRITEMASK_X;
    994          if (!tex_rgbaz)
    995             mask = TGSI_WRITEMASK_Y;
    996       }
    997       ureg_MOV(ureg, ureg_writemask(out, mask), ureg_src(data));
    998    }
    999    ureg_END(ureg);
   1000 
   1001    return ureg_create_shader_and_destroy(ureg, pipe);
   1002 }
   1003 
   1004 static void
   1005 nv50_blitter_make_sampler(struct nv50_blitter *blit)
   1006 {
   1007    /* clamp to edge, min/max lod = 0, nearest filtering */
   1008 
   1009    blit->sampler[0].id = -1;
   1010 
   1011    blit->sampler[0].tsc[0] = G80_TSC_0_SRGB_CONVERSION |
   1012       (G80_TSC_WRAP_CLAMP_TO_EDGE << G80_TSC_0_ADDRESS_U__SHIFT) |
   1013       (G80_TSC_WRAP_CLAMP_TO_EDGE << G80_TSC_0_ADDRESS_V__SHIFT) |
   1014       (G80_TSC_WRAP_CLAMP_TO_EDGE << G80_TSC_0_ADDRESS_P__SHIFT);
   1015    blit->sampler[0].tsc[1] =
   1016       G80_TSC_1_MAG_FILTER_NEAREST |
   1017       G80_TSC_1_MIN_FILTER_NEAREST |
   1018       G80_TSC_1_MIP_FILTER_NONE;
   1019 
   1020    /* clamp to edge, min/max lod = 0, bilinear filtering */
   1021 
   1022    blit->sampler[1].id = -1;
   1023 
   1024    blit->sampler[1].tsc[0] = blit->sampler[0].tsc[0];
   1025    blit->sampler[1].tsc[1] =
   1026       G80_TSC_1_MAG_FILTER_LINEAR |
   1027       G80_TSC_1_MIN_FILTER_LINEAR |
   1028       G80_TSC_1_MIP_FILTER_NONE;
   1029 }
   1030 
   1031 unsigned
   1032 nv50_blit_select_mode(const struct pipe_blit_info *info)
   1033 {
   1034    const unsigned mask = info->mask;
   1035 
   1036    switch (info->dst.resource->format) {
   1037    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
   1038    case PIPE_FORMAT_Z24X8_UNORM:
   1039    case PIPE_FORMAT_X24S8_UINT:
   1040       switch (mask & PIPE_MASK_ZS) {
   1041       case PIPE_MASK_ZS: return NV50_BLIT_MODE_Z24S8;
   1042       case PIPE_MASK_Z:  return NV50_BLIT_MODE_Z24X8;
   1043       default:
   1044          return NV50_BLIT_MODE_X24S8;
   1045       }
   1046    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
   1047    case PIPE_FORMAT_X8Z24_UNORM:
   1048    case PIPE_FORMAT_S8X24_UINT:
   1049       switch (mask & PIPE_MASK_ZS) {
   1050       case PIPE_MASK_ZS: return NV50_BLIT_MODE_S8Z24;
   1051       case PIPE_MASK_Z:  return NV50_BLIT_MODE_X8Z24;
   1052       default:
   1053          return NV50_BLIT_MODE_S8X24;
   1054       }
   1055    case PIPE_FORMAT_Z32_FLOAT:
   1056    case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
   1057    case PIPE_FORMAT_X32_S8X24_UINT:
   1058       switch (mask & PIPE_MASK_ZS) {
   1059       case PIPE_MASK_ZS: return NV50_BLIT_MODE_ZS;
   1060       case PIPE_MASK_Z:  return NV50_BLIT_MODE_PASS;
   1061       default:
   1062          return NV50_BLIT_MODE_XS;
   1063       }
   1064    default:
   1065       return NV50_BLIT_MODE_PASS;
   1066    }
   1067 }
   1068 
   1069 static void
   1070 nv50_blit_select_fp(struct nv50_blitctx *ctx, const struct pipe_blit_info *info)
   1071 {
   1072    struct nv50_blitter *blitter = ctx->nv50->screen->blitter;
   1073 
   1074    const enum pipe_texture_target ptarg =
   1075       nv50_blit_reinterpret_pipe_texture_target(info->src.resource->target);
   1076 
   1077    const unsigned targ = nv50_blit_texture_type(ptarg);
   1078    const unsigned mode = ctx->mode;
   1079 
   1080    if (!blitter->fp[targ][mode]) {
   1081       pipe_mutex_lock(blitter->mutex);
   1082       if (!blitter->fp[targ][mode])
   1083          blitter->fp[targ][mode] =
   1084             nv50_blitter_make_fp(&ctx->nv50->base.pipe, mode, ptarg);
   1085       pipe_mutex_unlock(blitter->mutex);
   1086    }
   1087    ctx->fp = blitter->fp[targ][mode];
   1088 }
   1089 
   1090 static void
   1091 nv50_blit_set_dst(struct nv50_blitctx *ctx,
   1092                   struct pipe_resource *res, unsigned level, unsigned layer,
   1093                   enum pipe_format format)
   1094 {
   1095    struct nv50_context *nv50 = ctx->nv50;
   1096    struct pipe_context *pipe = &nv50->base.pipe;
   1097    struct pipe_surface templ;
   1098 
   1099    if (util_format_is_depth_or_stencil(format))
   1100       templ.format = nv50_blit_zeta_to_colour_format(format);
   1101    else
   1102       templ.format = format;
   1103 
   1104    templ.u.tex.level = level;
   1105    templ.u.tex.first_layer = templ.u.tex.last_layer = layer;
   1106 
   1107    if (layer == -1) {
   1108       templ.u.tex.first_layer = 0;
   1109       templ.u.tex.last_layer =
   1110          (res->target == PIPE_TEXTURE_3D ? res->depth0 : res->array_size) - 1;
   1111    }
   1112 
   1113    nv50->framebuffer.cbufs[0] = nv50_miptree_surface_new(pipe, res, &templ);
   1114    nv50->framebuffer.nr_cbufs = 1;
   1115    nv50->framebuffer.zsbuf = NULL;
   1116    nv50->framebuffer.width = nv50->framebuffer.cbufs[0]->width;
   1117    nv50->framebuffer.height = nv50->framebuffer.cbufs[0]->height;
   1118 }
   1119 
   1120 static void
   1121 nv50_blit_set_src(struct nv50_blitctx *blit,
   1122                   struct pipe_resource *res, unsigned level, unsigned layer,
   1123                   enum pipe_format format, const uint8_t filter)
   1124 {
   1125    struct nv50_context *nv50 = blit->nv50;
   1126    struct pipe_context *pipe = &nv50->base.pipe;
   1127    struct pipe_sampler_view templ;
   1128    uint32_t flags;
   1129    enum pipe_texture_target target;
   1130 
   1131    target = nv50_blit_reinterpret_pipe_texture_target(res->target);
   1132 
   1133    templ.format = format;
   1134    templ.u.tex.first_level = templ.u.tex.last_level = level;
   1135    templ.u.tex.first_layer = templ.u.tex.last_layer = layer;
   1136    templ.swizzle_r = PIPE_SWIZZLE_X;
   1137    templ.swizzle_g = PIPE_SWIZZLE_Y;
   1138    templ.swizzle_b = PIPE_SWIZZLE_Z;
   1139    templ.swizzle_a = PIPE_SWIZZLE_W;
   1140 
   1141    if (layer == -1) {
   1142       templ.u.tex.first_layer = 0;
   1143       templ.u.tex.last_layer =
   1144          (res->target == PIPE_TEXTURE_3D ? res->depth0 : res->array_size) - 1;
   1145    }
   1146 
   1147    flags = res->last_level ? 0 : NV50_TEXVIEW_SCALED_COORDS;
   1148    flags |= NV50_TEXVIEW_ACCESS_RESOLVE;
   1149    if (filter && res->nr_samples == 8)
   1150       flags |= NV50_TEXVIEW_FILTER_MSAA8;
   1151 
   1152    nv50->textures[2][0] = nv50_create_texture_view(
   1153       pipe, res, &templ, flags, target);
   1154    nv50->textures[2][1] = NULL;
   1155 
   1156    nv50->num_textures[0] = nv50->num_textures[1] = 0;
   1157    nv50->num_textures[2] = 1;
   1158 
   1159    templ.format = nv50_zs_to_s_format(format);
   1160    if (templ.format != res->format) {
   1161       nv50->textures[2][1] = nv50_create_texture_view(
   1162          pipe, res, &templ, flags, target);
   1163       nv50->num_textures[2] = 2;
   1164    }
   1165 }
   1166 
   1167 static void
   1168 nv50_blitctx_prepare_state(struct nv50_blitctx *blit)
   1169 {
   1170    struct nouveau_pushbuf *push = blit->nv50->base.pushbuf;
   1171 
   1172    if (blit->nv50->cond_query && !blit->render_condition_enable) {
   1173       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
   1174       PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
   1175    }
   1176 
   1177    /* blend state */
   1178    BEGIN_NV04(push, NV50_3D(COLOR_MASK(0)), 1);
   1179    PUSH_DATA (push, blit->color_mask);
   1180    BEGIN_NV04(push, NV50_3D(BLEND_ENABLE(0)), 1);
   1181    PUSH_DATA (push, 0);
   1182    BEGIN_NV04(push, NV50_3D(LOGIC_OP_ENABLE), 1);
   1183    PUSH_DATA (push, 0);
   1184 
   1185    /* rasterizer state */
   1186 #ifndef NV50_SCISSORS_CLIPPING
   1187    BEGIN_NV04(push, NV50_3D(SCISSOR_ENABLE(0)), 1);
   1188    PUSH_DATA (push, 1);
   1189 #endif
   1190    BEGIN_NV04(push, NV50_3D(VERTEX_TWO_SIDE_ENABLE), 1);
   1191    PUSH_DATA (push, 0);
   1192    BEGIN_NV04(push, NV50_3D(FRAG_COLOR_CLAMP_EN), 1);
   1193    PUSH_DATA (push, 0);
   1194    BEGIN_NV04(push, NV50_3D(MULTISAMPLE_ENABLE), 1);
   1195    PUSH_DATA (push, 0);
   1196    BEGIN_NV04(push, NV50_3D(MSAA_MASK(0)), 4);
   1197    PUSH_DATA (push, 0xffff);
   1198    PUSH_DATA (push, 0xffff);
   1199    PUSH_DATA (push, 0xffff);
   1200    PUSH_DATA (push, 0xffff);
   1201    BEGIN_NV04(push, NV50_3D(POLYGON_MODE_FRONT), 3);
   1202    PUSH_DATA (push, NV50_3D_POLYGON_MODE_FRONT_FILL);
   1203    PUSH_DATA (push, NV50_3D_POLYGON_MODE_BACK_FILL);
   1204    PUSH_DATA (push, 0);
   1205    BEGIN_NV04(push, NV50_3D(CULL_FACE_ENABLE), 1);
   1206    PUSH_DATA (push, 0);
   1207    BEGIN_NV04(push, NV50_3D(POLYGON_STIPPLE_ENABLE), 1);
   1208    PUSH_DATA (push, 0);
   1209    BEGIN_NV04(push, NV50_3D(POLYGON_OFFSET_FILL_ENABLE), 1);
   1210    PUSH_DATA (push, 0);
   1211 
   1212    /* zsa state */
   1213    BEGIN_NV04(push, NV50_3D(DEPTH_TEST_ENABLE), 1);
   1214    PUSH_DATA (push, 0);
   1215    BEGIN_NV04(push, NV50_3D(DEPTH_BOUNDS_EN), 1);
   1216    PUSH_DATA (push, 0);
   1217    BEGIN_NV04(push, NV50_3D(STENCIL_ENABLE), 1);
   1218    PUSH_DATA (push, 0);
   1219    BEGIN_NV04(push, NV50_3D(ALPHA_TEST_ENABLE), 1);
   1220    PUSH_DATA (push, 0);
   1221 }
   1222 
   1223 static void
   1224 nv50_blitctx_pre_blit(struct nv50_blitctx *ctx,
   1225                       const struct pipe_blit_info *info)
   1226 {
   1227    struct nv50_context *nv50 = ctx->nv50;
   1228    struct nv50_blitter *blitter = nv50->screen->blitter;
   1229    int s;
   1230 
   1231    ctx->saved.fb.width = nv50->framebuffer.width;
   1232    ctx->saved.fb.height = nv50->framebuffer.height;
   1233    ctx->saved.fb.nr_cbufs = nv50->framebuffer.nr_cbufs;
   1234    ctx->saved.fb.cbufs[0] = nv50->framebuffer.cbufs[0];
   1235    ctx->saved.fb.zsbuf = nv50->framebuffer.zsbuf;
   1236 
   1237    ctx->saved.rast = nv50->rast;
   1238 
   1239    ctx->saved.vp = nv50->vertprog;
   1240    ctx->saved.gp = nv50->gmtyprog;
   1241    ctx->saved.fp = nv50->fragprog;
   1242 
   1243    ctx->saved.min_samples = nv50->min_samples;
   1244    ctx->saved.window_rect = nv50->window_rect;
   1245 
   1246    nv50->rast = &ctx->rast;
   1247 
   1248    nv50->vertprog = &blitter->vp;
   1249    nv50->gmtyprog = NULL;
   1250    nv50->fragprog = ctx->fp;
   1251 
   1252    nv50->window_rect.rects =
   1253       MIN2(info->num_window_rectangles, NV50_MAX_WINDOW_RECTANGLES);
   1254    nv50->window_rect.inclusive = info->window_rectangle_include;
   1255    if (nv50->window_rect.rects)
   1256       memcpy(nv50->window_rect.rect, info->window_rectangles,
   1257              sizeof(struct pipe_scissor_state) * nv50->window_rect.rects);
   1258 
   1259    for (s = 0; s < 3; ++s) {
   1260       ctx->saved.num_textures[s] = nv50->num_textures[s];
   1261       ctx->saved.num_samplers[s] = nv50->num_samplers[s];
   1262    }
   1263    ctx->saved.texture[0] = nv50->textures[2][0];
   1264    ctx->saved.texture[1] = nv50->textures[2][1];
   1265    ctx->saved.sampler[0] = nv50->samplers[2][0];
   1266    ctx->saved.sampler[1] = nv50->samplers[2][1];
   1267 
   1268    nv50->samplers[2][0] = &blitter->sampler[ctx->filter];
   1269    nv50->samplers[2][1] = &blitter->sampler[ctx->filter];
   1270 
   1271    nv50->num_samplers[0] = nv50->num_samplers[1] = 0;
   1272    nv50->num_samplers[2] = 2;
   1273 
   1274    nv50->min_samples = 1;
   1275 
   1276    ctx->saved.dirty_3d = nv50->dirty_3d;
   1277 
   1278    nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_FB);
   1279    nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_TEXTURES);
   1280 
   1281    nv50->dirty_3d =
   1282       NV50_NEW_3D_FRAMEBUFFER | NV50_NEW_3D_MIN_SAMPLES |
   1283       NV50_NEW_3D_VERTPROG | NV50_NEW_3D_FRAGPROG | NV50_NEW_3D_GMTYPROG |
   1284       NV50_NEW_3D_TEXTURES | NV50_NEW_3D_SAMPLERS | NV50_NEW_3D_WINDOW_RECTS;
   1285 }
   1286 
   1287 static void
   1288 nv50_blitctx_post_blit(struct nv50_blitctx *blit)
   1289 {
   1290    struct nv50_context *nv50 = blit->nv50;
   1291    int s;
   1292 
   1293    pipe_surface_reference(&nv50->framebuffer.cbufs[0], NULL);
   1294 
   1295    nv50->framebuffer.width = blit->saved.fb.width;
   1296    nv50->framebuffer.height = blit->saved.fb.height;
   1297    nv50->framebuffer.nr_cbufs = blit->saved.fb.nr_cbufs;
   1298    nv50->framebuffer.cbufs[0] = blit->saved.fb.cbufs[0];
   1299    nv50->framebuffer.zsbuf = blit->saved.fb.zsbuf;
   1300 
   1301    nv50->rast = blit->saved.rast;
   1302 
   1303    nv50->vertprog = blit->saved.vp;
   1304    nv50->gmtyprog = blit->saved.gp;
   1305    nv50->fragprog = blit->saved.fp;
   1306 
   1307    nv50->min_samples = blit->saved.min_samples;
   1308    nv50->window_rect = blit->saved.window_rect;
   1309 
   1310    pipe_sampler_view_reference(&nv50->textures[2][0], NULL);
   1311    pipe_sampler_view_reference(&nv50->textures[2][1], NULL);
   1312 
   1313    for (s = 0; s < 3; ++s) {
   1314       nv50->num_textures[s] = blit->saved.num_textures[s];
   1315       nv50->num_samplers[s] = blit->saved.num_samplers[s];
   1316    }
   1317    nv50->textures[2][0] = blit->saved.texture[0];
   1318    nv50->textures[2][1] = blit->saved.texture[1];
   1319    nv50->samplers[2][0] = blit->saved.sampler[0];
   1320    nv50->samplers[2][1] = blit->saved.sampler[1];
   1321 
   1322    if (nv50->cond_query && !blit->render_condition_enable)
   1323       nv50->base.pipe.render_condition(&nv50->base.pipe, nv50->cond_query,
   1324                                        nv50->cond_cond, nv50->cond_mode);
   1325 
   1326    nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_FB);
   1327    nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_TEXTURES);
   1328 
   1329    nv50->dirty_3d = blit->saved.dirty_3d |
   1330       (NV50_NEW_3D_FRAMEBUFFER | NV50_NEW_3D_SCISSOR | NV50_NEW_3D_SAMPLE_MASK |
   1331        NV50_NEW_3D_RASTERIZER | NV50_NEW_3D_ZSA | NV50_NEW_3D_BLEND |
   1332        NV50_NEW_3D_TEXTURES | NV50_NEW_3D_SAMPLERS | NV50_NEW_3D_WINDOW_RECTS |
   1333        NV50_NEW_3D_VERTPROG | NV50_NEW_3D_GMTYPROG | NV50_NEW_3D_FRAGPROG);
   1334    nv50->scissors_dirty |= 1;
   1335 
   1336    nv50->base.pipe.set_min_samples(&nv50->base.pipe, blit->saved.min_samples);
   1337 }
   1338 
   1339 
   1340 static void
   1341 nv50_blit_3d(struct nv50_context *nv50, const struct pipe_blit_info *info)
   1342 {
   1343    struct nv50_blitctx *blit = nv50->blit;
   1344    struct nouveau_pushbuf *push = nv50->base.pushbuf;
   1345    struct pipe_resource *src = info->src.resource;
   1346    struct pipe_resource *dst = info->dst.resource;
   1347    int32_t minx, maxx, miny, maxy;
   1348    int32_t i;
   1349    float x0, x1, y0, y1, z;
   1350    float dz;
   1351    float x_range, y_range;
   1352    float tri_x, tri_y;
   1353 
   1354    blit->mode = nv50_blit_select_mode(info);
   1355    blit->color_mask = nv50_blit_derive_color_mask(info);
   1356    blit->filter = nv50_blit_get_filter(info);
   1357    blit->render_condition_enable = info->render_condition_enable;
   1358 
   1359    nv50_blit_select_fp(blit, info);
   1360    nv50_blitctx_pre_blit(blit, info);
   1361 
   1362    nv50_blit_set_dst(blit, dst, info->dst.level, -1, info->dst.format);
   1363    nv50_blit_set_src(blit, src, info->src.level, -1, info->src.format,
   1364                      blit->filter);
   1365 
   1366    nv50_blitctx_prepare_state(blit);
   1367 
   1368    nv50_state_validate_3d(nv50, ~0);
   1369 
   1370    x_range = (float)info->src.box.width / (float)info->dst.box.width;
   1371    y_range = (float)info->src.box.height / (float)info->dst.box.height;
   1372 
   1373    tri_x = 16384 << nv50_miptree(dst)->ms_x;
   1374    tri_y = 16384 << nv50_miptree(dst)->ms_y;
   1375 
   1376    x0 = (float)info->src.box.x - x_range * (float)info->dst.box.x;
   1377    y0 = (float)info->src.box.y - y_range * (float)info->dst.box.y;
   1378 
   1379    x1 = x0 + tri_x * x_range;
   1380    y1 = y0 + tri_y * y_range;
   1381 
   1382    x0 *= (float)(1 << nv50_miptree(src)->ms_x);
   1383    x1 *= (float)(1 << nv50_miptree(src)->ms_x);
   1384    y0 *= (float)(1 << nv50_miptree(src)->ms_y);
   1385    y1 *= (float)(1 << nv50_miptree(src)->ms_y);
   1386 
   1387    /* XXX: multiply by 6 for cube arrays ? */
   1388    dz = (float)info->src.box.depth / (float)info->dst.box.depth;
   1389    z = (float)info->src.box.z;
   1390    if (nv50_miptree(src)->layout_3d)
   1391       z += 0.5f * dz;
   1392 
   1393    if (src->last_level > 0) {
   1394       /* If there are mip maps, GPU always assumes normalized coordinates. */
   1395       const unsigned l = info->src.level;
   1396       const float fh = u_minify(src->width0 << nv50_miptree(src)->ms_x, l);
   1397       const float fv = u_minify(src->height0 << nv50_miptree(src)->ms_y, l);
   1398       x0 /= fh;
   1399       x1 /= fh;
   1400       y0 /= fv;
   1401       y1 /= fv;
   1402       if (nv50_miptree(src)->layout_3d) {
   1403          z /= u_minify(src->depth0, l);
   1404          dz /= u_minify(src->depth0, l);
   1405       }
   1406    }
   1407 
   1408    BEGIN_NV04(push, NV50_3D(VIEWPORT_TRANSFORM_EN), 1);
   1409    PUSH_DATA (push, 0);
   1410    BEGIN_NV04(push, NV50_3D(VIEW_VOLUME_CLIP_CTRL), 1);
   1411    PUSH_DATA (push, 0x1);
   1412 
   1413    /* Draw a large triangle in screen coordinates covering the whole
   1414     * render target, with scissors defining the destination region.
   1415     * The vertex is supplied with non-normalized texture coordinates
   1416     * arranged in a way to yield the desired offset and scale.
   1417     */
   1418 
   1419    minx = info->dst.box.x;
   1420    maxx = info->dst.box.x + info->dst.box.width;
   1421    miny = info->dst.box.y;
   1422    maxy = info->dst.box.y + info->dst.box.height;
   1423    if (info->scissor_enable) {
   1424       minx = MAX2(minx, info->scissor.minx);
   1425       maxx = MIN2(maxx, info->scissor.maxx);
   1426       miny = MAX2(miny, info->scissor.miny);
   1427       maxy = MIN2(maxy, info->scissor.maxy);
   1428    }
   1429    BEGIN_NV04(push, NV50_3D(SCISSOR_HORIZ(0)), 2);
   1430    PUSH_DATA (push, (maxx << 16) | minx);
   1431    PUSH_DATA (push, (maxy << 16) | miny);
   1432 
   1433    for (i = 0; i < info->dst.box.depth; ++i, z += dz) {
   1434       if (info->dst.box.z + i) {
   1435          BEGIN_NV04(push, NV50_3D(LAYER), 1);
   1436          PUSH_DATA (push, info->dst.box.z + i);
   1437       }
   1438       PUSH_SPACE(push, 32);
   1439       BEGIN_NV04(push, NV50_3D(VERTEX_BEGIN_GL), 1);
   1440       PUSH_DATA (push, NV50_3D_VERTEX_BEGIN_GL_PRIMITIVE_TRIANGLES);
   1441       BEGIN_NV04(push, NV50_3D(VTX_ATTR_3F_X(1)), 3);
   1442       PUSH_DATAf(push, x0);
   1443       PUSH_DATAf(push, y0);
   1444       PUSH_DATAf(push, z);
   1445       BEGIN_NV04(push, NV50_3D(VTX_ATTR_2F_X(0)), 2);
   1446       PUSH_DATAf(push, 0.0f);
   1447       PUSH_DATAf(push, 0.0f);
   1448       BEGIN_NV04(push, NV50_3D(VTX_ATTR_3F_X(1)), 3);
   1449       PUSH_DATAf(push, x1);
   1450       PUSH_DATAf(push, y0);
   1451       PUSH_DATAf(push, z);
   1452       BEGIN_NV04(push, NV50_3D(VTX_ATTR_2F_X(0)), 2);
   1453       PUSH_DATAf(push, tri_x);
   1454       PUSH_DATAf(push, 0.0f);
   1455       BEGIN_NV04(push, NV50_3D(VTX_ATTR_3F_X(1)), 3);
   1456       PUSH_DATAf(push, x0);
   1457       PUSH_DATAf(push, y1);
   1458       PUSH_DATAf(push, z);
   1459       BEGIN_NV04(push, NV50_3D(VTX_ATTR_2F_X(0)), 2);
   1460       PUSH_DATAf(push, 0.0f);
   1461       PUSH_DATAf(push, tri_y);
   1462       BEGIN_NV04(push, NV50_3D(VERTEX_END_GL), 1);
   1463       PUSH_DATA (push, 0);
   1464    }
   1465    if (info->dst.box.z + info->dst.box.depth - 1) {
   1466       BEGIN_NV04(push, NV50_3D(LAYER), 1);
   1467       PUSH_DATA (push, 0);
   1468    }
   1469 
   1470    /* re-enable normally constant state */
   1471 
   1472    BEGIN_NV04(push, NV50_3D(VIEWPORT_TRANSFORM_EN), 1);
   1473    PUSH_DATA (push, 1);
   1474 
   1475    nv50_blitctx_post_blit(blit);
   1476 }
   1477 
   1478 static void
   1479 nv50_blit_eng2d(struct nv50_context *nv50, const struct pipe_blit_info *info)
   1480 {
   1481    struct nouveau_pushbuf *push = nv50->base.pushbuf;
   1482    struct nv50_miptree *dst = nv50_miptree(info->dst.resource);
   1483    struct nv50_miptree *src = nv50_miptree(info->src.resource);
   1484    const int32_t srcx_adj = info->src.box.width < 0 ? -1 : 0;
   1485    const int32_t srcy_adj = info->src.box.height < 0 ? -1 : 0;
   1486    const int32_t dz = info->dst.box.z;
   1487    const int32_t sz = info->src.box.z;
   1488    uint32_t dstw, dsth;
   1489    int32_t dstx, dsty;
   1490    int64_t srcx, srcy;
   1491    int64_t du_dx, dv_dy;
   1492    int i;
   1493    uint32_t mode;
   1494    uint32_t mask = nv50_blit_eng2d_get_mask(info);
   1495    bool b;
   1496 
   1497    mode = nv50_blit_get_filter(info) ?
   1498       NV50_2D_BLIT_CONTROL_FILTER_BILINEAR :
   1499       NV50_2D_BLIT_CONTROL_FILTER_POINT_SAMPLE;
   1500    mode |= (src->base.base.nr_samples > dst->base.base.nr_samples) ?
   1501       NV50_2D_BLIT_CONTROL_ORIGIN_CORNER : NV50_2D_BLIT_CONTROL_ORIGIN_CENTER;
   1502 
   1503    du_dx = ((int64_t)info->src.box.width << 32) / info->dst.box.width;
   1504    dv_dy = ((int64_t)info->src.box.height << 32) / info->dst.box.height;
   1505 
   1506    b = info->dst.format == info->src.format;
   1507    nv50_2d_texture_set(push, 1, dst, info->dst.level, dz, info->dst.format, b);
   1508    nv50_2d_texture_set(push, 0, src, info->src.level, sz, info->src.format, b);
   1509 
   1510    if (info->scissor_enable) {
   1511       BEGIN_NV04(push, NV50_2D(CLIP_X), 5);
   1512       PUSH_DATA (push, info->scissor.minx << dst->ms_x);
   1513       PUSH_DATA (push, info->scissor.miny << dst->ms_y);
   1514       PUSH_DATA (push, (info->scissor.maxx - info->scissor.minx) << dst->ms_x);
   1515       PUSH_DATA (push, (info->scissor.maxy - info->scissor.miny) << dst->ms_y);
   1516       PUSH_DATA (push, 1); /* enable */
   1517    }
   1518 
   1519    if (nv50->cond_query && info->render_condition_enable) {
   1520       BEGIN_NV04(push, NV50_2D(COND_MODE), 1);
   1521       PUSH_DATA (push, nv50->cond_condmode);
   1522    }
   1523 
   1524    if (mask != 0xffffffff) {
   1525       BEGIN_NV04(push, NV50_2D(ROP), 1);
   1526       PUSH_DATA (push, 0xca); /* DPSDxax */
   1527       BEGIN_NV04(push, NV50_2D(PATTERN_COLOR_FORMAT), 1);
   1528       PUSH_DATA (push, NV50_2D_PATTERN_COLOR_FORMAT_A8R8G8B8);
   1529       BEGIN_NV04(push, NV50_2D(PATTERN_BITMAP_COLOR(0)), 4);
   1530       PUSH_DATA (push, 0x00000000);
   1531       PUSH_DATA (push, mask);
   1532       PUSH_DATA (push, 0xffffffff);
   1533       PUSH_DATA (push, 0xffffffff);
   1534       BEGIN_NV04(push, NV50_2D(OPERATION), 1);
   1535       PUSH_DATA (push, NV50_2D_OPERATION_ROP);
   1536    } else
   1537    if (info->src.format != info->dst.format) {
   1538       if (info->src.format == PIPE_FORMAT_R8_UNORM ||
   1539           info->src.format == PIPE_FORMAT_R16_UNORM ||
   1540           info->src.format == PIPE_FORMAT_R16_FLOAT ||
   1541           info->src.format == PIPE_FORMAT_R32_FLOAT) {
   1542          mask = 0xffff0000; /* also makes condition for OPERATION reset true */
   1543          BEGIN_NV04(push, NV50_2D(BETA4), 2);
   1544          PUSH_DATA (push, mask);
   1545          PUSH_DATA (push, NV50_2D_OPERATION_SRCCOPY_PREMULT);
   1546       }
   1547    }
   1548 
   1549    if (src->ms_x > dst->ms_x || src->ms_y > dst->ms_y) {
   1550       /* ms_x is always >= ms_y */
   1551       du_dx <<= src->ms_x - dst->ms_x;
   1552       dv_dy <<= src->ms_y - dst->ms_y;
   1553    } else {
   1554       du_dx >>= dst->ms_x - src->ms_x;
   1555       dv_dy >>= dst->ms_y - src->ms_y;
   1556    }
   1557 
   1558    srcx = (int64_t)(info->src.box.x + srcx_adj) << (src->ms_x + 32);
   1559    srcy = (int64_t)(info->src.box.y + srcy_adj) << (src->ms_y + 32);
   1560 
   1561    if (src->base.base.nr_samples > dst->base.base.nr_samples) {
   1562       /* center src coorinates for proper MS resolve filtering */
   1563       srcx += (int64_t)1 << (src->ms_x + 31);
   1564       srcy += (int64_t)1 << (src->ms_y + 31);
   1565    }
   1566 
   1567    dstx = info->dst.box.x << dst->ms_x;
   1568    dsty = info->dst.box.y << dst->ms_y;
   1569 
   1570    dstw = info->dst.box.width << dst->ms_x;
   1571    dsth = info->dst.box.height << dst->ms_y;
   1572 
   1573    if (dstx < 0) {
   1574       dstw += dstx;
   1575       srcx -= du_dx * dstx;
   1576       dstx = 0;
   1577    }
   1578    if (dsty < 0) {
   1579       dsth += dsty;
   1580       srcy -= dv_dy * dsty;
   1581       dsty = 0;
   1582    }
   1583 
   1584    BEGIN_NV04(push, NV50_2D(BLIT_CONTROL), 1);
   1585    PUSH_DATA (push, mode);
   1586    BEGIN_NV04(push, NV50_2D(BLIT_DST_X), 4);
   1587    PUSH_DATA (push, dstx);
   1588    PUSH_DATA (push, dsty);
   1589    PUSH_DATA (push, dstw);
   1590    PUSH_DATA (push, dsth);
   1591    BEGIN_NV04(push, NV50_2D(BLIT_DU_DX_FRACT), 4);
   1592    PUSH_DATA (push, du_dx);
   1593    PUSH_DATA (push, du_dx >> 32);
   1594    PUSH_DATA (push, dv_dy);
   1595    PUSH_DATA (push, dv_dy >> 32);
   1596 
   1597    BCTX_REFN(nv50->bufctx, 2D, &dst->base, WR);
   1598    BCTX_REFN(nv50->bufctx, 2D, &src->base, RD);
   1599    nouveau_pushbuf_bufctx(nv50->base.pushbuf, nv50->bufctx);
   1600    if (nouveau_pushbuf_validate(nv50->base.pushbuf))
   1601       return;
   1602 
   1603    for (i = 0; i < info->dst.box.depth; ++i) {
   1604       if (i > 0) {
   1605          /* no scaling in z-direction possible for eng2d blits */
   1606          if (dst->layout_3d) {
   1607             BEGIN_NV04(push, NV50_2D(DST_LAYER), 1);
   1608             PUSH_DATA (push, info->dst.box.z + i);
   1609          } else {
   1610             const unsigned z = info->dst.box.z + i;
   1611             const uint64_t address = dst->base.address +
   1612                dst->level[info->dst.level].offset +
   1613                z * dst->layer_stride;
   1614             BEGIN_NV04(push, NV50_2D(DST_ADDRESS_HIGH), 2);
   1615             PUSH_DATAh(push, address);
   1616             PUSH_DATA (push, address);
   1617          }
   1618          if (src->layout_3d) {
   1619             /* not possible because of depth tiling */
   1620             assert(0);
   1621          } else {
   1622             const unsigned z = info->src.box.z + i;
   1623             const uint64_t address = src->base.address +
   1624                src->level[info->src.level].offset +
   1625                z * src->layer_stride;
   1626             BEGIN_NV04(push, NV50_2D(SRC_ADDRESS_HIGH), 2);
   1627             PUSH_DATAh(push, address);
   1628             PUSH_DATA (push, address);
   1629          }
   1630          BEGIN_NV04(push, NV50_2D(BLIT_SRC_Y_INT), 1); /* trigger */
   1631          PUSH_DATA (push, srcy >> 32);
   1632       } else {
   1633          BEGIN_NV04(push, NV50_2D(BLIT_SRC_X_FRACT), 4);
   1634          PUSH_DATA (push, srcx);
   1635          PUSH_DATA (push, srcx >> 32);
   1636          PUSH_DATA (push, srcy);
   1637          PUSH_DATA (push, srcy >> 32);
   1638       }
   1639    }
   1640    nv50_bufctx_fence(nv50->bufctx, false);
   1641 
   1642    nouveau_bufctx_reset(nv50->bufctx, NV50_BIND_2D);
   1643 
   1644    if (info->scissor_enable) {
   1645       BEGIN_NV04(push, NV50_2D(CLIP_ENABLE), 1);
   1646       PUSH_DATA (push, 0);
   1647    }
   1648    if (mask != 0xffffffff) {
   1649       BEGIN_NV04(push, NV50_2D(OPERATION), 1);
   1650       PUSH_DATA (push, NV50_2D_OPERATION_SRCCOPY);
   1651    }
   1652    if (nv50->cond_query && info->render_condition_enable) {
   1653       BEGIN_NV04(push, NV50_2D(COND_MODE), 1);
   1654       PUSH_DATA (push, NV50_2D_COND_MODE_ALWAYS);
   1655    }
   1656 }
   1657 
   1658 static void
   1659 nv50_blit(struct pipe_context *pipe, const struct pipe_blit_info *info)
   1660 {
   1661    struct nv50_context *nv50 = nv50_context(pipe);
   1662    struct nouveau_pushbuf *push = nv50->base.pushbuf;
   1663    bool eng3d = FALSE;
   1664 
   1665    if (util_format_is_depth_or_stencil(info->dst.resource->format)) {
   1666       if (!(info->mask & PIPE_MASK_ZS))
   1667          return;
   1668       if (info->dst.resource->format == PIPE_FORMAT_Z32_FLOAT ||
   1669           info->dst.resource->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
   1670          eng3d = true;
   1671       if (info->filter != PIPE_TEX_FILTER_NEAREST)
   1672          eng3d = true;
   1673    } else {
   1674       if (!(info->mask & PIPE_MASK_RGBA))
   1675          return;
   1676       if (info->mask != PIPE_MASK_RGBA)
   1677          eng3d = true;
   1678    }
   1679 
   1680    if (nv50_miptree(info->src.resource)->layout_3d) {
   1681       eng3d = true;
   1682    } else
   1683    if (info->src.box.depth != info->dst.box.depth) {
   1684       eng3d = true;
   1685       debug_printf("blit: cannot filter array or cube textures in z direction");
   1686    }
   1687 
   1688    if (!eng3d && info->dst.format != info->src.format) {
   1689       if (!nv50_2d_dst_format_faithful(info->dst.format) ||
   1690           !nv50_2d_src_format_faithful(info->src.format)) {
   1691          eng3d = true;
   1692       } else
   1693       if (!nv50_2d_src_format_faithful(info->src.format)) {
   1694          if (!util_format_is_luminance(info->src.format)) {
   1695             if (util_format_is_intensity(info->src.format))
   1696                eng3d = true;
   1697             else
   1698             if (!nv50_2d_dst_format_ops_supported(info->dst.format))
   1699                eng3d = true;
   1700             else
   1701                eng3d = !nv50_2d_format_supported(info->src.format);
   1702          }
   1703       } else
   1704       if (util_format_is_luminance_alpha(info->src.format))
   1705          eng3d = true;
   1706    }
   1707 
   1708    if (info->src.resource->nr_samples == 8 &&
   1709        info->dst.resource->nr_samples <= 1)
   1710       eng3d = true;
   1711 
   1712    if (info->num_window_rectangles > 0 || info->window_rectangle_include)
   1713       eng3d = true;
   1714 
   1715    /* FIXME: can't make this work with eng2d anymore */
   1716    if ((info->src.resource->nr_samples | 1) !=
   1717        (info->dst.resource->nr_samples | 1))
   1718       eng3d = true;
   1719 
   1720    /* FIXME: find correct src coordinate adjustments */
   1721    if ((info->src.box.width !=  info->dst.box.width &&
   1722         info->src.box.width != -info->dst.box.width) ||
   1723        (info->src.box.height !=  info->dst.box.height &&
   1724         info->src.box.height != -info->dst.box.height))
   1725       eng3d = true;
   1726 
   1727    if (nv50->screen->num_occlusion_queries_active) {
   1728       BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
   1729       PUSH_DATA (push, 0);
   1730    }
   1731 
   1732    if (!eng3d)
   1733       nv50_blit_eng2d(nv50, info);
   1734    else
   1735       nv50_blit_3d(nv50, info);
   1736 
   1737    if (nv50->screen->num_occlusion_queries_active) {
   1738       BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
   1739       PUSH_DATA (push, 1);
   1740    }
   1741 }
   1742 
   1743 static void
   1744 nv50_flush_resource(struct pipe_context *ctx,
   1745                     struct pipe_resource *resource)
   1746 {
   1747 }
   1748 
   1749 bool
   1750 nv50_blitter_create(struct nv50_screen *screen)
   1751 {
   1752    screen->blitter = CALLOC_STRUCT(nv50_blitter);
   1753    if (!screen->blitter) {
   1754       NOUVEAU_ERR("failed to allocate blitter struct\n");
   1755       return false;
   1756    }
   1757 
   1758    pipe_mutex_init(screen->blitter->mutex);
   1759 
   1760    nv50_blitter_make_vp(screen->blitter);
   1761    nv50_blitter_make_sampler(screen->blitter);
   1762 
   1763    return true;
   1764 }
   1765 
   1766 void
   1767 nv50_blitter_destroy(struct nv50_screen *screen)
   1768 {
   1769    struct nv50_blitter *blitter = screen->blitter;
   1770    unsigned i, m;
   1771 
   1772    for (i = 0; i < NV50_BLIT_MAX_TEXTURE_TYPES; ++i) {
   1773       for (m = 0; m < NV50_BLIT_MODES; ++m) {
   1774          struct nv50_program *prog = blitter->fp[i][m];
   1775          if (prog) {
   1776             nv50_program_destroy(NULL, prog);
   1777             FREE((void *)prog->pipe.tokens);
   1778             FREE(prog);
   1779          }
   1780       }
   1781    }
   1782 
   1783    pipe_mutex_destroy(blitter->mutex);
   1784    FREE(blitter);
   1785 }
   1786 
   1787 bool
   1788 nv50_blitctx_create(struct nv50_context *nv50)
   1789 {
   1790    nv50->blit = CALLOC_STRUCT(nv50_blitctx);
   1791    if (!nv50->blit) {
   1792       NOUVEAU_ERR("failed to allocate blit context\n");
   1793       return false;
   1794    }
   1795 
   1796    nv50->blit->nv50 = nv50;
   1797 
   1798    nv50->blit->rast.pipe.half_pixel_center = 1;
   1799 
   1800    return true;
   1801 }
   1802 
   1803 void
   1804 nv50_init_surface_functions(struct nv50_context *nv50)
   1805 {
   1806    struct pipe_context *pipe = &nv50->base.pipe;
   1807 
   1808    pipe->resource_copy_region = nv50_resource_copy_region;
   1809    pipe->blit = nv50_blit;
   1810    pipe->flush_resource = nv50_flush_resource;
   1811    pipe->clear_texture = nv50_clear_texture;
   1812    pipe->clear_render_target = nv50_clear_render_target;
   1813    pipe->clear_depth_stencil = nv50_clear_depth_stencil;
   1814    pipe->clear_buffer = nv50_clear_buffer;
   1815 }
   1816