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      1 /*
      2  * Copyright  2013 Intel Corporation
      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 (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 NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     21  * DEALINGS IN THE SOFTWARE.
     22  */
     23 
     24 #include "main/mtypes.h"
     25 #include "program/prog_parameter.h"
     26 #include "main/shaderapi.h"
     27 
     28 #include "brw_context.h"
     29 #include "brw_state.h"
     30 
     31 
     32 /* Creates a new TCS constant buffer reflecting the current TCS program's
     33  * constants, if needed by the TCS program.
     34  *
     35  * Otherwise, constants go through the CURBEs using the brw_constant_buffer
     36  * state atom.
     37  */
     38 static void
     39 brw_upload_tcs_pull_constants(struct brw_context *brw)
     40 {
     41    struct brw_stage_state *stage_state = &brw->tcs.base;
     42 
     43    /* BRW_NEW_TESS_PROGRAMS */
     44    struct brw_program *tcp = (struct brw_program *) brw->tess_ctrl_program;
     45 
     46    if (!tcp)
     47       return;
     48 
     49    /* BRW_NEW_TCS_PROG_DATA */
     50    const struct brw_stage_prog_data *prog_data = brw->tcs.base.prog_data;
     51 
     52    _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_TESS_CTRL);
     53    /* _NEW_PROGRAM_CONSTANTS */
     54    brw_upload_pull_constants(brw, BRW_NEW_TCS_CONSTBUF, &tcp->program,
     55                              stage_state, prog_data);
     56 }
     57 
     58 const struct brw_tracked_state brw_tcs_pull_constants = {
     59    .dirty = {
     60       .mesa = _NEW_PROGRAM_CONSTANTS,
     61       .brw = BRW_NEW_BATCH |
     62              BRW_NEW_BLORP |
     63              BRW_NEW_TCS_PROG_DATA |
     64              BRW_NEW_TESS_PROGRAMS,
     65    },
     66    .emit = brw_upload_tcs_pull_constants,
     67 };
     68 
     69 static void
     70 brw_upload_tcs_ubo_surfaces(struct brw_context *brw)
     71 {
     72    struct gl_context *ctx = &brw->ctx;
     73 
     74    /* _NEW_PROGRAM */
     75    struct gl_shader_program *prog =
     76       ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_CTRL];
     77 
     78    if (!prog || !prog->_LinkedShaders[MESA_SHADER_TESS_CTRL])
     79       return;
     80 
     81    /* BRW_NEW_TCS_PROG_DATA */
     82    struct brw_stage_prog_data *prog_data = brw->tcs.base.prog_data;
     83 
     84    brw_upload_ubo_surfaces(brw, prog->_LinkedShaders[MESA_SHADER_TESS_CTRL]->Program,
     85 			   &brw->tcs.base, prog_data);
     86 }
     87 
     88 const struct brw_tracked_state brw_tcs_ubo_surfaces = {
     89    .dirty = {
     90       .mesa = _NEW_PROGRAM,
     91       .brw = BRW_NEW_BATCH |
     92              BRW_NEW_BLORP |
     93              BRW_NEW_TCS_PROG_DATA |
     94              BRW_NEW_UNIFORM_BUFFER,
     95    },
     96    .emit = brw_upload_tcs_ubo_surfaces,
     97 };
     98 
     99 static void
    100 brw_upload_tcs_abo_surfaces(struct brw_context *brw)
    101 {
    102    /* _NEW_PROGRAM */
    103    const struct gl_program *tcp = brw->tess_ctrl_program;
    104 
    105    if (tcp) {
    106       /* BRW_NEW_TCS_PROG_DATA */
    107       brw_upload_abo_surfaces(brw, tcp, &brw->tcs.base,
    108                               brw->tcs.base.prog_data);
    109    }
    110 }
    111 
    112 const struct brw_tracked_state brw_tcs_abo_surfaces = {
    113    .dirty = {
    114       .mesa = _NEW_PROGRAM,
    115       .brw = BRW_NEW_ATOMIC_BUFFER |
    116              BRW_NEW_BATCH |
    117              BRW_NEW_BLORP |
    118              BRW_NEW_TCS_PROG_DATA,
    119    },
    120    .emit = brw_upload_tcs_abo_surfaces,
    121 };
    122 
    123 static void
    124 brw_upload_tcs_image_surfaces(struct brw_context *brw)
    125 {
    126    /* BRW_NEW_TESS_PROGRAMS */
    127    const struct gl_program *tcp = brw->tess_ctrl_program;
    128 
    129    if (tcp) {
    130       /* BRW_NEW_TCS_PROG_DATA, BRW_NEW_IMAGE_UNITS */
    131       brw_upload_image_surfaces(brw, tcp, &brw->tcs.base,
    132                                 brw->tcs.base.prog_data);
    133    }
    134 }
    135 
    136 const struct brw_tracked_state brw_tcs_image_surfaces = {
    137    .dirty = {
    138       .brw = BRW_NEW_BATCH |
    139              BRW_NEW_BLORP |
    140              BRW_NEW_TCS_PROG_DATA |
    141              BRW_NEW_IMAGE_UNITS |
    142              BRW_NEW_TESS_PROGRAMS,
    143    },
    144    .emit = brw_upload_tcs_image_surfaces,
    145 };
    146