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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 TES constant buffer reflecting the current TES program's
     33  * constants, if needed by the TES program.
     34  *
     35  * Otherwise, constants go through the CURBEs using the brw_constant_buffer
     36  * state atom.
     37  */
     38 static void
     39 brw_upload_tes_pull_constants(struct brw_context *brw)
     40 {
     41    struct brw_stage_state *stage_state = &brw->tes.base;
     42 
     43    /* BRW_NEW_TESS_PROGRAMS */
     44    struct brw_program *dp =
     45       (struct brw_program *) brw->programs[MESA_SHADER_TESS_EVAL];
     46 
     47    if (!dp)
     48       return;
     49 
     50    /* BRW_NEW_TES_PROG_DATA */
     51    const struct brw_stage_prog_data *prog_data = brw->tes.base.prog_data;
     52 
     53    _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_TESS_EVAL);
     54    /* _NEW_PROGRAM_CONSTANTS */
     55    brw_upload_pull_constants(brw, BRW_NEW_TES_CONSTBUF, &dp->program,
     56                              stage_state, prog_data);
     57 }
     58 
     59 const struct brw_tracked_state brw_tes_pull_constants = {
     60    .dirty = {
     61       .mesa = _NEW_PROGRAM_CONSTANTS,
     62       .brw = BRW_NEW_BATCH |
     63              BRW_NEW_TES_PROG_DATA |
     64              BRW_NEW_TESS_PROGRAMS,
     65    },
     66    .emit = brw_upload_tes_pull_constants,
     67 };
     68 
     69 static void
     70 brw_upload_tes_ubo_surfaces(struct brw_context *brw)
     71 {
     72    struct gl_context *ctx = &brw->ctx;
     73 
     74    /* _NEW_PROGRAM */
     75    struct gl_program *prog =
     76       ctx->_Shader->CurrentProgram[MESA_SHADER_TESS_EVAL];
     77 
     78    /* BRW_NEW_TES_PROG_DATA */
     79    struct brw_stage_prog_data *prog_data = brw->tes.base.prog_data;
     80 
     81    brw_upload_ubo_surfaces(brw, prog, &brw->tes.base, prog_data);
     82 }
     83 
     84 const struct brw_tracked_state brw_tes_ubo_surfaces = {
     85    .dirty = {
     86       .mesa = _NEW_PROGRAM,
     87       .brw = BRW_NEW_BATCH |
     88              BRW_NEW_TES_PROG_DATA |
     89              BRW_NEW_UNIFORM_BUFFER,
     90    },
     91    .emit = brw_upload_tes_ubo_surfaces,
     92 };
     93 
     94 static void
     95 brw_upload_tes_image_surfaces(struct brw_context *brw)
     96 {
     97    /* BRW_NEW_TESS_PROGRAMS */
     98    const struct gl_program *tep = brw->programs[MESA_SHADER_TESS_EVAL];
     99 
    100    if (tep) {
    101       /* BRW_NEW_TES_PROG_DATA, BRW_NEW_IMAGE_UNITS */
    102       brw_upload_image_surfaces(brw, tep, &brw->tes.base,
    103                                 brw->tes.base.prog_data);
    104    }
    105 }
    106 
    107 const struct brw_tracked_state brw_tes_image_surfaces = {
    108    .dirty = {
    109       .brw = BRW_NEW_BATCH |
    110              BRW_NEW_AUX_STATE |
    111              BRW_NEW_IMAGE_UNITS |
    112              BRW_NEW_TESS_PROGRAMS |
    113              BRW_NEW_TES_PROG_DATA,
    114    },
    115    .emit = brw_upload_tes_image_surfaces,
    116 };
    117