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      1 /*
      2  * Copyright 2014, 2015 Red Hat.
      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  * on the rights to use, copy, modify, merge, publish, distribute, sub
      8  * license, and/or sell copies of the Software, and to permit persons to whom
      9  * the Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     22  */
     23 #include <stdint.h>
     24 #include <assert.h>
     25 #include <string.h>
     26 
     27 #include "util/u_format.h"
     28 #include "util/u_memory.h"
     29 #include "util/u_math.h"
     30 #include "pipe/p_state.h"
     31 #include "tgsi/tgsi_dump.h"
     32 #include "tgsi/tgsi_parse.h"
     33 
     34 #include "virgl_context.h"
     35 #include "virgl_encode.h"
     36 #include "virgl_protocol.h"
     37 #include "virgl_resource.h"
     38 #include "virgl_screen.h"
     39 
     40 static int virgl_encoder_write_cmd_dword(struct virgl_context *ctx,
     41                                         uint32_t dword)
     42 {
     43    int len = (dword >> 16);
     44 
     45    if ((ctx->cbuf->cdw + len + 1) > VIRGL_MAX_CMDBUF_DWORDS)
     46       ctx->base.flush(&ctx->base, NULL, 0);
     47 
     48    virgl_encoder_write_dword(ctx->cbuf, dword);
     49    return 0;
     50 }
     51 
     52 static void virgl_encoder_write_res(struct virgl_context *ctx,
     53                                     struct virgl_resource *res)
     54 {
     55    struct virgl_winsys *vws = virgl_screen(ctx->base.screen)->vws;
     56 
     57    if (res && res->hw_res)
     58       vws->emit_res(vws, ctx->cbuf, res->hw_res, TRUE);
     59    else {
     60       virgl_encoder_write_dword(ctx->cbuf, 0);
     61    }
     62 }
     63 
     64 int virgl_encode_bind_object(struct virgl_context *ctx,
     65                             uint32_t handle, uint32_t object)
     66 {
     67    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_BIND_OBJECT, object, 1));
     68    virgl_encoder_write_dword(ctx->cbuf, handle);
     69    return 0;
     70 }
     71 
     72 int virgl_encode_delete_object(struct virgl_context *ctx,
     73                               uint32_t handle, uint32_t object)
     74 {
     75    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_DESTROY_OBJECT, object, 1));
     76    virgl_encoder_write_dword(ctx->cbuf, handle);
     77    return 0;
     78 }
     79 
     80 int virgl_encode_blend_state(struct virgl_context *ctx,
     81                             uint32_t handle,
     82                             const struct pipe_blend_state *blend_state)
     83 {
     84    uint32_t tmp;
     85    int i;
     86 
     87    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_BLEND, VIRGL_OBJ_BLEND_SIZE));
     88    virgl_encoder_write_dword(ctx->cbuf, handle);
     89 
     90    tmp =
     91       VIRGL_OBJ_BLEND_S0_INDEPENDENT_BLEND_ENABLE(blend_state->independent_blend_enable) |
     92       VIRGL_OBJ_BLEND_S0_LOGICOP_ENABLE(blend_state->logicop_enable) |
     93       VIRGL_OBJ_BLEND_S0_DITHER(blend_state->dither) |
     94       VIRGL_OBJ_BLEND_S0_ALPHA_TO_COVERAGE(blend_state->alpha_to_coverage) |
     95       VIRGL_OBJ_BLEND_S0_ALPHA_TO_ONE(blend_state->alpha_to_one);
     96 
     97    virgl_encoder_write_dword(ctx->cbuf, tmp);
     98 
     99    tmp = VIRGL_OBJ_BLEND_S1_LOGICOP_FUNC(blend_state->logicop_func);
    100    virgl_encoder_write_dword(ctx->cbuf, tmp);
    101 
    102    for (i = 0; i < VIRGL_MAX_COLOR_BUFS; i++) {
    103       tmp =
    104          VIRGL_OBJ_BLEND_S2_RT_BLEND_ENABLE(blend_state->rt[i].blend_enable) |
    105          VIRGL_OBJ_BLEND_S2_RT_RGB_FUNC(blend_state->rt[i].rgb_func) |
    106          VIRGL_OBJ_BLEND_S2_RT_RGB_SRC_FACTOR(blend_state->rt[i].rgb_src_factor) |
    107          VIRGL_OBJ_BLEND_S2_RT_RGB_DST_FACTOR(blend_state->rt[i].rgb_dst_factor)|
    108          VIRGL_OBJ_BLEND_S2_RT_ALPHA_FUNC(blend_state->rt[i].alpha_func) |
    109          VIRGL_OBJ_BLEND_S2_RT_ALPHA_SRC_FACTOR(blend_state->rt[i].alpha_src_factor) |
    110          VIRGL_OBJ_BLEND_S2_RT_ALPHA_DST_FACTOR(blend_state->rt[i].alpha_dst_factor) |
    111          VIRGL_OBJ_BLEND_S2_RT_COLORMASK(blend_state->rt[i].colormask);
    112       virgl_encoder_write_dword(ctx->cbuf, tmp);
    113    }
    114    return 0;
    115 }
    116 
    117 int virgl_encode_dsa_state(struct virgl_context *ctx,
    118                           uint32_t handle,
    119                           const struct pipe_depth_stencil_alpha_state *dsa_state)
    120 {
    121    uint32_t tmp;
    122    int i;
    123    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_DSA, VIRGL_OBJ_DSA_SIZE));
    124    virgl_encoder_write_dword(ctx->cbuf, handle);
    125 
    126    tmp = VIRGL_OBJ_DSA_S0_DEPTH_ENABLE(dsa_state->depth.enabled) |
    127       VIRGL_OBJ_DSA_S0_DEPTH_WRITEMASK(dsa_state->depth.writemask) |
    128       VIRGL_OBJ_DSA_S0_DEPTH_FUNC(dsa_state->depth.func) |
    129       VIRGL_OBJ_DSA_S0_ALPHA_ENABLED(dsa_state->alpha.enabled) |
    130       VIRGL_OBJ_DSA_S0_ALPHA_FUNC(dsa_state->alpha.func);
    131    virgl_encoder_write_dword(ctx->cbuf, tmp);
    132 
    133    for (i = 0; i < 2; i++) {
    134       tmp = VIRGL_OBJ_DSA_S1_STENCIL_ENABLED(dsa_state->stencil[i].enabled) |
    135          VIRGL_OBJ_DSA_S1_STENCIL_FUNC(dsa_state->stencil[i].func) |
    136          VIRGL_OBJ_DSA_S1_STENCIL_FAIL_OP(dsa_state->stencil[i].fail_op) |
    137          VIRGL_OBJ_DSA_S1_STENCIL_ZPASS_OP(dsa_state->stencil[i].zpass_op) |
    138          VIRGL_OBJ_DSA_S1_STENCIL_ZFAIL_OP(dsa_state->stencil[i].zfail_op) |
    139          VIRGL_OBJ_DSA_S1_STENCIL_VALUEMASK(dsa_state->stencil[i].valuemask) |
    140          VIRGL_OBJ_DSA_S1_STENCIL_WRITEMASK(dsa_state->stencil[i].writemask);
    141       virgl_encoder_write_dword(ctx->cbuf, tmp);
    142    }
    143 
    144    virgl_encoder_write_dword(ctx->cbuf, fui(dsa_state->alpha.ref_value));
    145    return 0;
    146 }
    147 int virgl_encode_rasterizer_state(struct virgl_context *ctx,
    148                                   uint32_t handle,
    149                                   const struct pipe_rasterizer_state *state)
    150 {
    151    uint32_t tmp;
    152 
    153    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_RASTERIZER, VIRGL_OBJ_RS_SIZE));
    154    virgl_encoder_write_dword(ctx->cbuf, handle);
    155 
    156    tmp = VIRGL_OBJ_RS_S0_FLATSHADE(state->flatshade) |
    157       VIRGL_OBJ_RS_S0_DEPTH_CLIP(state->depth_clip) |
    158       VIRGL_OBJ_RS_S0_CLIP_HALFZ(state->clip_halfz) |
    159       VIRGL_OBJ_RS_S0_RASTERIZER_DISCARD(state->rasterizer_discard) |
    160       VIRGL_OBJ_RS_S0_FLATSHADE_FIRST(state->flatshade_first) |
    161       VIRGL_OBJ_RS_S0_LIGHT_TWOSIZE(state->light_twoside) |
    162       VIRGL_OBJ_RS_S0_SPRITE_COORD_MODE(state->sprite_coord_mode) |
    163       VIRGL_OBJ_RS_S0_POINT_QUAD_RASTERIZATION(state->point_quad_rasterization) |
    164       VIRGL_OBJ_RS_S0_CULL_FACE(state->cull_face) |
    165       VIRGL_OBJ_RS_S0_FILL_FRONT(state->fill_front) |
    166       VIRGL_OBJ_RS_S0_FILL_BACK(state->fill_back) |
    167       VIRGL_OBJ_RS_S0_SCISSOR(state->scissor) |
    168       VIRGL_OBJ_RS_S0_FRONT_CCW(state->front_ccw) |
    169       VIRGL_OBJ_RS_S0_CLAMP_VERTEX_COLOR(state->clamp_vertex_color) |
    170       VIRGL_OBJ_RS_S0_CLAMP_FRAGMENT_COLOR(state->clamp_fragment_color) |
    171       VIRGL_OBJ_RS_S0_OFFSET_LINE(state->offset_line) |
    172       VIRGL_OBJ_RS_S0_OFFSET_POINT(state->offset_point) |
    173       VIRGL_OBJ_RS_S0_OFFSET_TRI(state->offset_tri) |
    174       VIRGL_OBJ_RS_S0_POLY_SMOOTH(state->poly_smooth) |
    175       VIRGL_OBJ_RS_S0_POLY_STIPPLE_ENABLE(state->poly_stipple_enable) |
    176       VIRGL_OBJ_RS_S0_POINT_SMOOTH(state->point_smooth) |
    177       VIRGL_OBJ_RS_S0_POINT_SIZE_PER_VERTEX(state->point_size_per_vertex) |
    178       VIRGL_OBJ_RS_S0_MULTISAMPLE(state->multisample) |
    179       VIRGL_OBJ_RS_S0_LINE_SMOOTH(state->line_smooth) |
    180       VIRGL_OBJ_RS_S0_LINE_STIPPLE_ENABLE(state->line_stipple_enable) |
    181       VIRGL_OBJ_RS_S0_LINE_LAST_PIXEL(state->line_last_pixel) |
    182       VIRGL_OBJ_RS_S0_HALF_PIXEL_CENTER(state->half_pixel_center) |
    183       VIRGL_OBJ_RS_S0_BOTTOM_EDGE_RULE(state->bottom_edge_rule);
    184 
    185    virgl_encoder_write_dword(ctx->cbuf, tmp); /* S0 */
    186    virgl_encoder_write_dword(ctx->cbuf, fui(state->point_size)); /* S1 */
    187    virgl_encoder_write_dword(ctx->cbuf, state->sprite_coord_enable); /* S2 */
    188    tmp = VIRGL_OBJ_RS_S3_LINE_STIPPLE_PATTERN(state->line_stipple_pattern) |
    189       VIRGL_OBJ_RS_S3_LINE_STIPPLE_FACTOR(state->line_stipple_factor) |
    190       VIRGL_OBJ_RS_S3_CLIP_PLANE_ENABLE(state->clip_plane_enable);
    191    virgl_encoder_write_dword(ctx->cbuf, tmp); /* S3 */
    192    virgl_encoder_write_dword(ctx->cbuf, fui(state->line_width)); /* S4 */
    193    virgl_encoder_write_dword(ctx->cbuf, fui(state->offset_units)); /* S5 */
    194    virgl_encoder_write_dword(ctx->cbuf, fui(state->offset_scale)); /* S6 */
    195    virgl_encoder_write_dword(ctx->cbuf, fui(state->offset_clamp)); /* S7 */
    196    return 0;
    197 }
    198 
    199 static void virgl_emit_shader_header(struct virgl_context *ctx,
    200                                      uint32_t handle, uint32_t len,
    201                                      uint32_t type, uint32_t offlen,
    202                                      uint32_t num_tokens)
    203 {
    204    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_SHADER, len));
    205    virgl_encoder_write_dword(ctx->cbuf, handle);
    206    virgl_encoder_write_dword(ctx->cbuf, type);
    207    virgl_encoder_write_dword(ctx->cbuf, offlen);
    208    virgl_encoder_write_dword(ctx->cbuf, num_tokens);
    209 }
    210 
    211 static void virgl_emit_shader_streamout(struct virgl_context *ctx,
    212                                         const struct pipe_stream_output_info *so_info)
    213 {
    214    int num_outputs = 0;
    215    int i;
    216    uint32_t tmp;
    217 
    218    if (so_info)
    219       num_outputs = so_info->num_outputs;
    220 
    221    virgl_encoder_write_dword(ctx->cbuf, num_outputs);
    222    if (num_outputs) {
    223       for (i = 0; i < 4; i++)
    224          virgl_encoder_write_dword(ctx->cbuf, so_info->stride[i]);
    225 
    226       for (i = 0; i < so_info->num_outputs; i++) {
    227          tmp =
    228            VIRGL_OBJ_SHADER_SO_OUTPUT_REGISTER_INDEX(so_info->output[i].register_index) |
    229            VIRGL_OBJ_SHADER_SO_OUTPUT_START_COMPONENT(so_info->output[i].start_component) |
    230            VIRGL_OBJ_SHADER_SO_OUTPUT_NUM_COMPONENTS(so_info->output[i].num_components) |
    231            VIRGL_OBJ_SHADER_SO_OUTPUT_BUFFER(so_info->output[i].output_buffer) |
    232            VIRGL_OBJ_SHADER_SO_OUTPUT_DST_OFFSET(so_info->output[i].dst_offset);
    233          virgl_encoder_write_dword(ctx->cbuf, tmp);
    234          virgl_encoder_write_dword(ctx->cbuf, 0);
    235       }
    236    }
    237 }
    238 
    239 int virgl_encode_shader_state(struct virgl_context *ctx,
    240                               uint32_t handle,
    241                               uint32_t type,
    242                               const struct pipe_stream_output_info *so_info,
    243                               const struct tgsi_token *tokens)
    244 {
    245    char *str, *sptr;
    246    uint32_t shader_len, len;
    247    bool bret;
    248    int num_tokens = tgsi_num_tokens(tokens);
    249    int str_total_size = 65536;
    250    int retry_size = 1;
    251    uint32_t left_bytes, base_hdr_size, strm_hdr_size, thispass;
    252    bool first_pass;
    253    str = CALLOC(1, str_total_size);
    254    if (!str)
    255       return -1;
    256 
    257    do {
    258       int old_size;
    259 
    260       bret = tgsi_dump_str(tokens, TGSI_DUMP_FLOAT_AS_HEX, str, str_total_size);
    261       if (bret == false) {
    262          fprintf(stderr, "Failed to translate shader in available space - trying again\n");
    263          old_size = str_total_size;
    264          str_total_size = 65536 * ++retry_size;
    265          str = REALLOC(str, old_size, str_total_size);
    266          if (!str)
    267             return -1;
    268       }
    269    } while (bret == false && retry_size < 10);
    270 
    271    if (bret == false)
    272       return -1;
    273 
    274    shader_len = strlen(str) + 1;
    275 
    276    left_bytes = shader_len;
    277 
    278    base_hdr_size = 5;
    279    strm_hdr_size = so_info->num_outputs ? so_info->num_outputs * 2 + 4 : 0;
    280    first_pass = true;
    281    sptr = str;
    282    while (left_bytes) {
    283       uint32_t length, offlen;
    284       int hdr_len = base_hdr_size + (first_pass ? strm_hdr_size : 0);
    285       if (ctx->cbuf->cdw + hdr_len + 1 > VIRGL_MAX_CMDBUF_DWORDS)
    286          ctx->base.flush(&ctx->base, NULL, 0);
    287 
    288       thispass = (VIRGL_MAX_CMDBUF_DWORDS - ctx->cbuf->cdw - hdr_len - 1) * 4;
    289 
    290       length = MIN2(thispass, left_bytes);
    291       len = ((length + 3) / 4) + hdr_len;
    292 
    293       if (first_pass)
    294          offlen = VIRGL_OBJ_SHADER_OFFSET_VAL(shader_len);
    295       else
    296          offlen = VIRGL_OBJ_SHADER_OFFSET_VAL((uintptr_t)sptr - (uintptr_t)str) | VIRGL_OBJ_SHADER_OFFSET_CONT;
    297 
    298       virgl_emit_shader_header(ctx, handle, len, type, offlen, num_tokens);
    299 
    300       virgl_emit_shader_streamout(ctx, first_pass ? so_info : NULL);
    301 
    302       virgl_encoder_write_block(ctx->cbuf, (uint8_t *)sptr, length);
    303 
    304       sptr += length;
    305       first_pass = false;
    306       left_bytes -= length;
    307    }
    308 
    309    FREE(str);
    310    return 0;
    311 }
    312 
    313 
    314 int virgl_encode_clear(struct virgl_context *ctx,
    315                       unsigned buffers,
    316                       const union pipe_color_union *color,
    317                       double depth, unsigned stencil)
    318 {
    319    int i;
    320    uint64_t qword;
    321 
    322    STATIC_ASSERT(sizeof(qword) == sizeof(depth));
    323    memcpy(&qword, &depth, sizeof(qword));
    324 
    325    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CLEAR, 0, VIRGL_OBJ_CLEAR_SIZE));
    326    virgl_encoder_write_dword(ctx->cbuf, buffers);
    327    for (i = 0; i < 4; i++)
    328       virgl_encoder_write_dword(ctx->cbuf, color->ui[i]);
    329    virgl_encoder_write_qword(ctx->cbuf, qword);
    330    virgl_encoder_write_dword(ctx->cbuf, stencil);
    331    return 0;
    332 }
    333 
    334 int virgl_encoder_set_framebuffer_state(struct virgl_context *ctx,
    335                                        const struct pipe_framebuffer_state *state)
    336 {
    337    struct virgl_surface *zsurf = virgl_surface(state->zsbuf);
    338    int i;
    339 
    340    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_FRAMEBUFFER_STATE, 0, VIRGL_SET_FRAMEBUFFER_STATE_SIZE(state->nr_cbufs)));
    341    virgl_encoder_write_dword(ctx->cbuf, state->nr_cbufs);
    342    virgl_encoder_write_dword(ctx->cbuf, zsurf ? zsurf->handle : 0);
    343    for (i = 0; i < state->nr_cbufs; i++) {
    344       struct virgl_surface *surf = virgl_surface(state->cbufs[i]);
    345       virgl_encoder_write_dword(ctx->cbuf, surf ? surf->handle : 0);
    346    }
    347 
    348    return 0;
    349 }
    350 
    351 int virgl_encoder_set_viewport_states(struct virgl_context *ctx,
    352                                       int start_slot,
    353                                       int num_viewports,
    354                                       const struct pipe_viewport_state *states)
    355 {
    356    int i,v;
    357    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_VIEWPORT_STATE, 0, VIRGL_SET_VIEWPORT_STATE_SIZE(num_viewports)));
    358    virgl_encoder_write_dword(ctx->cbuf, start_slot);
    359    for (v = 0; v < num_viewports; v++) {
    360       for (i = 0; i < 3; i++)
    361          virgl_encoder_write_dword(ctx->cbuf, fui(states[v].scale[i]));
    362       for (i = 0; i < 3; i++)
    363          virgl_encoder_write_dword(ctx->cbuf, fui(states[v].translate[i]));
    364    }
    365    return 0;
    366 }
    367 
    368 int virgl_encoder_create_vertex_elements(struct virgl_context *ctx,
    369                                         uint32_t handle,
    370                                         unsigned num_elements,
    371                                         const struct pipe_vertex_element *element)
    372 {
    373    int i;
    374    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_VERTEX_ELEMENTS, VIRGL_OBJ_VERTEX_ELEMENTS_SIZE(num_elements)));
    375    virgl_encoder_write_dword(ctx->cbuf, handle);
    376    for (i = 0; i < num_elements; i++) {
    377       virgl_encoder_write_dword(ctx->cbuf, element[i].src_offset);
    378       virgl_encoder_write_dword(ctx->cbuf, element[i].instance_divisor);
    379       virgl_encoder_write_dword(ctx->cbuf, element[i].vertex_buffer_index);
    380       virgl_encoder_write_dword(ctx->cbuf, element[i].src_format);
    381    }
    382    return 0;
    383 }
    384 
    385 int virgl_encoder_set_vertex_buffers(struct virgl_context *ctx,
    386                                     unsigned num_buffers,
    387                                     const struct pipe_vertex_buffer *buffers)
    388 {
    389    int i;
    390    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_VERTEX_BUFFERS, 0, VIRGL_SET_VERTEX_BUFFERS_SIZE(num_buffers)));
    391    for (i = 0; i < num_buffers; i++) {
    392       struct virgl_resource *res = virgl_resource(buffers[i].buffer);
    393       virgl_encoder_write_dword(ctx->cbuf, buffers[i].stride);
    394       virgl_encoder_write_dword(ctx->cbuf, buffers[i].buffer_offset);
    395       virgl_encoder_write_res(ctx, res);
    396    }
    397    return 0;
    398 }
    399 
    400 int virgl_encoder_set_index_buffer(struct virgl_context *ctx,
    401                                   const struct pipe_index_buffer *ib)
    402 {
    403    int length = VIRGL_SET_INDEX_BUFFER_SIZE(ib);
    404    struct virgl_resource *res = NULL;
    405    if (ib)
    406       res = virgl_resource(ib->buffer);
    407 
    408    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_INDEX_BUFFER, 0, length));
    409    virgl_encoder_write_res(ctx, res);
    410    if (ib) {
    411       virgl_encoder_write_dword(ctx->cbuf, ib->index_size);
    412       virgl_encoder_write_dword(ctx->cbuf, ib->offset);
    413    }
    414    return 0;
    415 }
    416 
    417 int virgl_encoder_draw_vbo(struct virgl_context *ctx,
    418                           const struct pipe_draw_info *info)
    419 {
    420    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_DRAW_VBO, 0, VIRGL_DRAW_VBO_SIZE));
    421    virgl_encoder_write_dword(ctx->cbuf, info->start);
    422    virgl_encoder_write_dword(ctx->cbuf, info->count);
    423    virgl_encoder_write_dword(ctx->cbuf, info->mode);
    424    virgl_encoder_write_dword(ctx->cbuf, info->indexed);
    425    virgl_encoder_write_dword(ctx->cbuf, info->instance_count);
    426    virgl_encoder_write_dword(ctx->cbuf, info->index_bias);
    427    virgl_encoder_write_dword(ctx->cbuf, info->start_instance);
    428    virgl_encoder_write_dword(ctx->cbuf, info->primitive_restart);
    429    virgl_encoder_write_dword(ctx->cbuf, info->restart_index);
    430    virgl_encoder_write_dword(ctx->cbuf, info->min_index);
    431    virgl_encoder_write_dword(ctx->cbuf, info->max_index);
    432    if (info->count_from_stream_output)
    433       virgl_encoder_write_dword(ctx->cbuf, info->count_from_stream_output->buffer_size);
    434    else
    435       virgl_encoder_write_dword(ctx->cbuf, 0);
    436    return 0;
    437 }
    438 
    439 int virgl_encoder_create_surface(struct virgl_context *ctx,
    440                                 uint32_t handle,
    441                                 struct virgl_resource *res,
    442                                 const struct pipe_surface *templat)
    443 {
    444    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_SURFACE, VIRGL_OBJ_SURFACE_SIZE));
    445    virgl_encoder_write_dword(ctx->cbuf, handle);
    446    virgl_encoder_write_res(ctx, res);
    447    virgl_encoder_write_dword(ctx->cbuf, templat->format);
    448    if (templat->texture->target == PIPE_BUFFER) {
    449       virgl_encoder_write_dword(ctx->cbuf, templat->u.buf.first_element);
    450       virgl_encoder_write_dword(ctx->cbuf, templat->u.buf.last_element);
    451 
    452    } else {
    453       virgl_encoder_write_dword(ctx->cbuf, templat->u.tex.level);
    454       virgl_encoder_write_dword(ctx->cbuf, templat->u.tex.first_layer | (templat->u.tex.last_layer << 16));
    455    }
    456    return 0;
    457 }
    458 
    459 int virgl_encoder_create_so_target(struct virgl_context *ctx,
    460                                   uint32_t handle,
    461                                   struct virgl_resource *res,
    462                                   unsigned buffer_offset,
    463                                   unsigned buffer_size)
    464 {
    465    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_STREAMOUT_TARGET, VIRGL_OBJ_STREAMOUT_SIZE));
    466    virgl_encoder_write_dword(ctx->cbuf, handle);
    467    virgl_encoder_write_res(ctx, res);
    468    virgl_encoder_write_dword(ctx->cbuf, buffer_offset);
    469    virgl_encoder_write_dword(ctx->cbuf, buffer_size);
    470    return 0;
    471 }
    472 
    473 static void virgl_encoder_iw_emit_header_1d(struct virgl_context *ctx,
    474                                            struct virgl_resource *res,
    475                                            unsigned level, unsigned usage,
    476                                            const struct pipe_box *box,
    477                                            unsigned stride, unsigned layer_stride)
    478 {
    479    virgl_encoder_write_res(ctx, res);
    480    virgl_encoder_write_dword(ctx->cbuf, level);
    481    virgl_encoder_write_dword(ctx->cbuf, usage);
    482    virgl_encoder_write_dword(ctx->cbuf, stride);
    483    virgl_encoder_write_dword(ctx->cbuf, layer_stride);
    484    virgl_encoder_write_dword(ctx->cbuf, box->x);
    485    virgl_encoder_write_dword(ctx->cbuf, box->y);
    486    virgl_encoder_write_dword(ctx->cbuf, box->z);
    487    virgl_encoder_write_dword(ctx->cbuf, box->width);
    488    virgl_encoder_write_dword(ctx->cbuf, box->height);
    489    virgl_encoder_write_dword(ctx->cbuf, box->depth);
    490 }
    491 
    492 int virgl_encoder_inline_write(struct virgl_context *ctx,
    493                               struct virgl_resource *res,
    494                               unsigned level, unsigned usage,
    495                               const struct pipe_box *box,
    496                               const void *data, unsigned stride,
    497                               unsigned layer_stride)
    498 {
    499    uint32_t size = (stride ? stride : box->width) * box->height;
    500    uint32_t length, thispass, left_bytes;
    501    struct pipe_box mybox = *box;
    502 
    503    length = 11 + (size + 3) / 4;
    504    if ((ctx->cbuf->cdw + length + 1) > VIRGL_MAX_CMDBUF_DWORDS) {
    505       if (box->height > 1 || box->depth > 1) {
    506          debug_printf("inline transfer failed due to multi dimensions and too large\n");
    507          assert(0);
    508       }
    509    }
    510 
    511    left_bytes = size;
    512    while (left_bytes) {
    513       if (ctx->cbuf->cdw + 12 > VIRGL_MAX_CMDBUF_DWORDS)
    514          ctx->base.flush(&ctx->base, NULL, 0);
    515 
    516       thispass = (VIRGL_MAX_CMDBUF_DWORDS - ctx->cbuf->cdw - 12) * 4;
    517 
    518       length = MIN2(thispass, left_bytes);
    519 
    520       mybox.width = length;
    521       virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_RESOURCE_INLINE_WRITE, 0, ((length + 3) / 4) + 11));
    522       virgl_encoder_iw_emit_header_1d(ctx, res, level, usage, &mybox, stride, layer_stride);
    523       virgl_encoder_write_block(ctx->cbuf, data, length);
    524       left_bytes -= length;
    525       mybox.x += length;
    526       data += length;
    527    }
    528    return 0;
    529 }
    530 
    531 int virgl_encoder_flush_frontbuffer(struct virgl_context *ctx,
    532                                    struct virgl_resource *res)
    533 {
    534 //   virgl_encoder_write_dword(ctx->cbuf, VIRGL_CMD0(VIRGL_CCMD_FLUSH_FRONTUBFFER, 0, 1));
    535 //   virgl_encoder_write_dword(ctx->cbuf, res_handle);
    536    return 0;
    537 }
    538 
    539 int virgl_encode_sampler_state(struct virgl_context *ctx,
    540                               uint32_t handle,
    541                               const struct pipe_sampler_state *state)
    542 {
    543    uint32_t tmp;
    544    int i;
    545    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_SAMPLER_STATE, VIRGL_OBJ_SAMPLER_STATE_SIZE));
    546    virgl_encoder_write_dword(ctx->cbuf, handle);
    547 
    548    tmp = VIRGL_OBJ_SAMPLE_STATE_S0_WRAP_S(state->wrap_s) |
    549       VIRGL_OBJ_SAMPLE_STATE_S0_WRAP_T(state->wrap_t) |
    550       VIRGL_OBJ_SAMPLE_STATE_S0_WRAP_R(state->wrap_r) |
    551       VIRGL_OBJ_SAMPLE_STATE_S0_MIN_IMG_FILTER(state->min_img_filter) |
    552       VIRGL_OBJ_SAMPLE_STATE_S0_MIN_MIP_FILTER(state->min_mip_filter) |
    553       VIRGL_OBJ_SAMPLE_STATE_S0_MAG_IMG_FILTER(state->mag_img_filter) |
    554       VIRGL_OBJ_SAMPLE_STATE_S0_COMPARE_MODE(state->compare_mode) |
    555       VIRGL_OBJ_SAMPLE_STATE_S0_COMPARE_FUNC(state->compare_func);
    556 
    557    virgl_encoder_write_dword(ctx->cbuf, tmp);
    558    virgl_encoder_write_dword(ctx->cbuf, fui(state->lod_bias));
    559    virgl_encoder_write_dword(ctx->cbuf, fui(state->min_lod));
    560    virgl_encoder_write_dword(ctx->cbuf, fui(state->max_lod));
    561    for (i = 0; i <  4; i++)
    562       virgl_encoder_write_dword(ctx->cbuf, state->border_color.ui[i]);
    563    return 0;
    564 }
    565 
    566 
    567 int virgl_encode_sampler_view(struct virgl_context *ctx,
    568                              uint32_t handle,
    569                              struct virgl_resource *res,
    570                              const struct pipe_sampler_view *state)
    571 {
    572    unsigned elem_size = util_format_get_blocksize(state->format);
    573 
    574    uint32_t tmp;
    575    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_SAMPLER_VIEW, VIRGL_OBJ_SAMPLER_VIEW_SIZE));
    576    virgl_encoder_write_dword(ctx->cbuf, handle);
    577    virgl_encoder_write_res(ctx, res);
    578    virgl_encoder_write_dword(ctx->cbuf, state->format);
    579    if (res->u.b.target == PIPE_BUFFER) {
    580       virgl_encoder_write_dword(ctx->cbuf, state->u.buf.offset / elem_size);
    581       virgl_encoder_write_dword(ctx->cbuf, (state->u.buf.offset + state->u.buf.size) / elem_size - 1);
    582    } else {
    583       virgl_encoder_write_dword(ctx->cbuf, state->u.tex.first_layer | state->u.tex.last_layer << 16);
    584       virgl_encoder_write_dword(ctx->cbuf, state->u.tex.first_level | state->u.tex.last_level << 8);
    585    }
    586    tmp = VIRGL_OBJ_SAMPLER_VIEW_SWIZZLE_R(state->swizzle_r) |
    587       VIRGL_OBJ_SAMPLER_VIEW_SWIZZLE_G(state->swizzle_g) |
    588       VIRGL_OBJ_SAMPLER_VIEW_SWIZZLE_B(state->swizzle_b) |
    589       VIRGL_OBJ_SAMPLER_VIEW_SWIZZLE_A(state->swizzle_a);
    590    virgl_encoder_write_dword(ctx->cbuf, tmp);
    591    return 0;
    592 }
    593 
    594 int virgl_encode_set_sampler_views(struct virgl_context *ctx,
    595                                   uint32_t shader_type,
    596                                   uint32_t start_slot,
    597                                   uint32_t num_views,
    598                                   struct virgl_sampler_view **views)
    599 {
    600    int i;
    601    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_SAMPLER_VIEWS, 0, VIRGL_SET_SAMPLER_VIEWS_SIZE(num_views)));
    602    virgl_encoder_write_dword(ctx->cbuf, shader_type);
    603    virgl_encoder_write_dword(ctx->cbuf, start_slot);
    604    for (i = 0; i < num_views; i++) {
    605       uint32_t handle = views[i] ? views[i]->handle : 0;
    606       virgl_encoder_write_dword(ctx->cbuf, handle);
    607    }
    608    return 0;
    609 }
    610 
    611 int virgl_encode_bind_sampler_states(struct virgl_context *ctx,
    612                                     uint32_t shader_type,
    613                                     uint32_t start_slot,
    614                                     uint32_t num_handles,
    615                                     uint32_t *handles)
    616 {
    617    int i;
    618    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_BIND_SAMPLER_STATES, 0, VIRGL_BIND_SAMPLER_STATES(num_handles)));
    619    virgl_encoder_write_dword(ctx->cbuf, shader_type);
    620    virgl_encoder_write_dword(ctx->cbuf, start_slot);
    621    for (i = 0; i < num_handles; i++)
    622       virgl_encoder_write_dword(ctx->cbuf, handles[i]);
    623    return 0;
    624 }
    625 
    626 int virgl_encoder_write_constant_buffer(struct virgl_context *ctx,
    627                                        uint32_t shader,
    628                                        uint32_t index,
    629                                        uint32_t size,
    630                                        const void *data)
    631 {
    632    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_CONSTANT_BUFFER, 0, size + 2));
    633    virgl_encoder_write_dword(ctx->cbuf, shader);
    634    virgl_encoder_write_dword(ctx->cbuf, index);
    635    if (data)
    636       virgl_encoder_write_block(ctx->cbuf, data, size * 4);
    637    return 0;
    638 }
    639 
    640 int virgl_encoder_set_uniform_buffer(struct virgl_context *ctx,
    641                                      uint32_t shader,
    642                                      uint32_t index,
    643                                      uint32_t offset,
    644                                      uint32_t length,
    645                                      struct virgl_resource *res)
    646 {
    647    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_UNIFORM_BUFFER, 0, VIRGL_SET_UNIFORM_BUFFER_SIZE));
    648    virgl_encoder_write_dword(ctx->cbuf, shader);
    649    virgl_encoder_write_dword(ctx->cbuf, index);
    650    virgl_encoder_write_dword(ctx->cbuf, offset);
    651    virgl_encoder_write_dword(ctx->cbuf, length);
    652    virgl_encoder_write_res(ctx, res);
    653    return 0;
    654 }
    655 
    656 
    657 int virgl_encoder_set_stencil_ref(struct virgl_context *ctx,
    658                                  const struct pipe_stencil_ref *ref)
    659 {
    660    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_STENCIL_REF, 0, VIRGL_SET_STENCIL_REF_SIZE));
    661    virgl_encoder_write_dword(ctx->cbuf, VIRGL_STENCIL_REF_VAL(ref->ref_value[0] , (ref->ref_value[1])));
    662    return 0;
    663 }
    664 
    665 int virgl_encoder_set_blend_color(struct virgl_context *ctx,
    666                                  const struct pipe_blend_color *color)
    667 {
    668    int i;
    669    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_BLEND_COLOR, 0, VIRGL_SET_BLEND_COLOR_SIZE));
    670    for (i = 0; i < 4; i++)
    671       virgl_encoder_write_dword(ctx->cbuf, fui(color->color[i]));
    672    return 0;
    673 }
    674 
    675 int virgl_encoder_set_scissor_state(struct virgl_context *ctx,
    676                                     unsigned start_slot,
    677                                     int num_scissors,
    678                                     const struct pipe_scissor_state *ss)
    679 {
    680    int i;
    681    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_SCISSOR_STATE, 0, VIRGL_SET_SCISSOR_STATE_SIZE(num_scissors)));
    682    virgl_encoder_write_dword(ctx->cbuf, start_slot);
    683    for (i = 0; i < num_scissors; i++) {
    684       virgl_encoder_write_dword(ctx->cbuf, (ss[i].minx | ss[i].miny << 16));
    685       virgl_encoder_write_dword(ctx->cbuf, (ss[i].maxx | ss[i].maxy << 16));
    686    }
    687    return 0;
    688 }
    689 
    690 void virgl_encoder_set_polygon_stipple(struct virgl_context *ctx,
    691                                       const struct pipe_poly_stipple *ps)
    692 {
    693    int i;
    694    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_POLYGON_STIPPLE, 0, VIRGL_POLYGON_STIPPLE_SIZE));
    695    for (i = 0; i < VIRGL_POLYGON_STIPPLE_SIZE; i++) {
    696       virgl_encoder_write_dword(ctx->cbuf, ps->stipple[i]);
    697    }
    698 }
    699 
    700 void virgl_encoder_set_sample_mask(struct virgl_context *ctx,
    701                                   unsigned sample_mask)
    702 {
    703    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_SAMPLE_MASK, 0, VIRGL_SET_SAMPLE_MASK_SIZE));
    704    virgl_encoder_write_dword(ctx->cbuf, sample_mask);
    705 }
    706 
    707 void virgl_encoder_set_clip_state(struct virgl_context *ctx,
    708                                  const struct pipe_clip_state *clip)
    709 {
    710    int i, j;
    711    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_CLIP_STATE, 0, VIRGL_SET_CLIP_STATE_SIZE));
    712    for (i = 0; i < VIRGL_MAX_CLIP_PLANES; i++) {
    713       for (j = 0; j < 4; j++) {
    714          virgl_encoder_write_dword(ctx->cbuf, fui(clip->ucp[i][j]));
    715       }
    716    }
    717 }
    718 
    719 int virgl_encode_resource_copy_region(struct virgl_context *ctx,
    720                                      struct virgl_resource *dst_res,
    721                                      unsigned dst_level,
    722                                      unsigned dstx, unsigned dsty, unsigned dstz,
    723                                      struct virgl_resource *src_res,
    724                                      unsigned src_level,
    725                                      const struct pipe_box *src_box)
    726 {
    727    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_RESOURCE_COPY_REGION, 0, VIRGL_CMD_RESOURCE_COPY_REGION_SIZE));
    728    virgl_encoder_write_res(ctx, dst_res);
    729    virgl_encoder_write_dword(ctx->cbuf, dst_level);
    730    virgl_encoder_write_dword(ctx->cbuf, dstx);
    731    virgl_encoder_write_dword(ctx->cbuf, dsty);
    732    virgl_encoder_write_dword(ctx->cbuf, dstz);
    733    virgl_encoder_write_res(ctx, src_res);
    734    virgl_encoder_write_dword(ctx->cbuf, src_level);
    735    virgl_encoder_write_dword(ctx->cbuf, src_box->x);
    736    virgl_encoder_write_dword(ctx->cbuf, src_box->y);
    737    virgl_encoder_write_dword(ctx->cbuf, src_box->z);
    738    virgl_encoder_write_dword(ctx->cbuf, src_box->width);
    739    virgl_encoder_write_dword(ctx->cbuf, src_box->height);
    740    virgl_encoder_write_dword(ctx->cbuf, src_box->depth);
    741    return 0;
    742 }
    743 
    744 int virgl_encode_blit(struct virgl_context *ctx,
    745                      struct virgl_resource *dst_res,
    746                      struct virgl_resource *src_res,
    747                      const struct pipe_blit_info *blit)
    748 {
    749    uint32_t tmp;
    750    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_BLIT, 0, VIRGL_CMD_BLIT_SIZE));
    751    tmp = VIRGL_CMD_BLIT_S0_MASK(blit->mask) |
    752       VIRGL_CMD_BLIT_S0_FILTER(blit->filter) |
    753       VIRGL_CMD_BLIT_S0_SCISSOR_ENABLE(blit->scissor_enable) |
    754       VIRGL_CMD_BLIT_S0_RENDER_CONDITION_ENABLE(blit->render_condition_enable) |
    755       VIRGL_CMD_BLIT_S0_ALPHA_BLEND(blit->alpha_blend);
    756    virgl_encoder_write_dword(ctx->cbuf, tmp);
    757    virgl_encoder_write_dword(ctx->cbuf, (blit->scissor.minx | blit->scissor.miny << 16));
    758    virgl_encoder_write_dword(ctx->cbuf, (blit->scissor.maxx | blit->scissor.maxy << 16));
    759 
    760    virgl_encoder_write_res(ctx, dst_res);
    761    virgl_encoder_write_dword(ctx->cbuf, blit->dst.level);
    762    virgl_encoder_write_dword(ctx->cbuf, blit->dst.format);
    763    virgl_encoder_write_dword(ctx->cbuf, blit->dst.box.x);
    764    virgl_encoder_write_dword(ctx->cbuf, blit->dst.box.y);
    765    virgl_encoder_write_dword(ctx->cbuf, blit->dst.box.z);
    766    virgl_encoder_write_dword(ctx->cbuf, blit->dst.box.width);
    767    virgl_encoder_write_dword(ctx->cbuf, blit->dst.box.height);
    768    virgl_encoder_write_dword(ctx->cbuf, blit->dst.box.depth);
    769 
    770    virgl_encoder_write_res(ctx, src_res);
    771    virgl_encoder_write_dword(ctx->cbuf, blit->src.level);
    772    virgl_encoder_write_dword(ctx->cbuf, blit->src.format);
    773    virgl_encoder_write_dword(ctx->cbuf, blit->src.box.x);
    774    virgl_encoder_write_dword(ctx->cbuf, blit->src.box.y);
    775    virgl_encoder_write_dword(ctx->cbuf, blit->src.box.z);
    776    virgl_encoder_write_dword(ctx->cbuf, blit->src.box.width);
    777    virgl_encoder_write_dword(ctx->cbuf, blit->src.box.height);
    778    virgl_encoder_write_dword(ctx->cbuf, blit->src.box.depth);
    779    return 0;
    780 }
    781 
    782 int virgl_encoder_create_query(struct virgl_context *ctx,
    783                               uint32_t handle,
    784                               uint query_type,
    785                               uint query_index,
    786                               struct virgl_resource *res,
    787                               uint32_t offset)
    788 {
    789    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_OBJECT, VIRGL_OBJECT_QUERY, VIRGL_OBJ_QUERY_SIZE));
    790    virgl_encoder_write_dword(ctx->cbuf, handle);
    791    virgl_encoder_write_dword(ctx->cbuf, ((query_type & 0xffff) | (query_index << 16)));
    792    virgl_encoder_write_dword(ctx->cbuf, offset);
    793    virgl_encoder_write_res(ctx, res);
    794    return 0;
    795 }
    796 
    797 int virgl_encoder_begin_query(struct virgl_context *ctx,
    798                              uint32_t handle)
    799 {
    800    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_BEGIN_QUERY, 0, 1));
    801    virgl_encoder_write_dword(ctx->cbuf, handle);
    802    return 0;
    803 }
    804 
    805 int virgl_encoder_end_query(struct virgl_context *ctx,
    806                            uint32_t handle)
    807 {
    808    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_END_QUERY, 0, 1));
    809    virgl_encoder_write_dword(ctx->cbuf, handle);
    810    return 0;
    811 }
    812 
    813 int virgl_encoder_get_query_result(struct virgl_context *ctx,
    814                                   uint32_t handle, boolean wait)
    815 {
    816    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_GET_QUERY_RESULT, 0, 2));
    817    virgl_encoder_write_dword(ctx->cbuf, handle);
    818    virgl_encoder_write_dword(ctx->cbuf, wait ? 1 : 0);
    819    return 0;
    820 }
    821 
    822 int virgl_encoder_render_condition(struct virgl_context *ctx,
    823                                   uint32_t handle, boolean condition,
    824                                   uint mode)
    825 {
    826    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_RENDER_CONDITION, 0, VIRGL_RENDER_CONDITION_SIZE));
    827    virgl_encoder_write_dword(ctx->cbuf, handle);
    828    virgl_encoder_write_dword(ctx->cbuf, condition);
    829    virgl_encoder_write_dword(ctx->cbuf, mode);
    830    return 0;
    831 }
    832 
    833 int virgl_encoder_set_so_targets(struct virgl_context *ctx,
    834                                 unsigned num_targets,
    835                                 struct pipe_stream_output_target **targets,
    836                                 unsigned append_bitmask)
    837 {
    838    int i;
    839 
    840    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_STREAMOUT_TARGETS, 0, num_targets + 1));
    841    virgl_encoder_write_dword(ctx->cbuf, append_bitmask);
    842    for (i = 0; i < num_targets; i++) {
    843       struct virgl_so_target *tg = virgl_so_target(targets[i]);
    844       virgl_encoder_write_dword(ctx->cbuf, tg->handle);
    845    }
    846    return 0;
    847 }
    848 
    849 
    850 int virgl_encoder_set_sub_ctx(struct virgl_context *ctx, uint32_t sub_ctx_id)
    851 {
    852    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_SET_SUB_CTX, 0, 1));
    853    virgl_encoder_write_dword(ctx->cbuf, sub_ctx_id);
    854    return 0;
    855 }
    856 
    857 int virgl_encoder_create_sub_ctx(struct virgl_context *ctx, uint32_t sub_ctx_id)
    858 {
    859    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_CREATE_SUB_CTX, 0, 1));
    860    virgl_encoder_write_dword(ctx->cbuf, sub_ctx_id);
    861    return 0;
    862 }
    863 
    864 int virgl_encoder_destroy_sub_ctx(struct virgl_context *ctx, uint32_t sub_ctx_id)
    865 {
    866    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_DESTROY_SUB_CTX, 0, 1));
    867    virgl_encoder_write_dword(ctx->cbuf, sub_ctx_id);
    868    return 0;
    869 }
    870 
    871 int virgl_encode_bind_shader(struct virgl_context *ctx,
    872                              uint32_t handle, uint32_t type)
    873 {
    874    virgl_encoder_write_cmd_dword(ctx, VIRGL_CMD0(VIRGL_CCMD_BIND_SHADER, 0, 2));
    875    virgl_encoder_write_dword(ctx->cbuf, handle);
    876    virgl_encoder_write_dword(ctx->cbuf, type);
    877    return 0;
    878 }
    879