src/compiler/glsl/standalone_scaffolding.cpp

   1 /*
   2  * Copyright © 2011 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 /* This file declares stripped-down versions of functions that
  25  * normally exist outside of the glsl folder, so that they can be used
  26  * when running the GLSL compiler standalone (for unit testing or
  27  * compiling builtins).
  28  */
  29
  30 #include "standalone_scaffolding.h"
  31
  32 #include <assert.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35 #include "util/ralloc.h"
  36 #include "util/strtod.h"
  37 #include "main/mtypes.h"
  38
  39 void
  40 _mesa_warning(struct gl_context *ctx, const char *fmt, ...)
  41 {
  42     va_list vargs;
  43     (void) ctx;
  44
  45     va_start(vargs, fmt);
  46
  47     /* This output is not thread-safe, but that's good enough for the
  48      * standalone compiler.
  49      */
  50     fprintf(stderr, "Mesa warning: ");
  51     vfprintf(stderr, fmt, vargs);
  52     fprintf(stderr, "\n");
  53
  54     va_end(vargs);
  55 }
  56
  57 void
  58 _mesa_problem(struct gl_context *ctx, const char *fmt, ...)
  59 {
  60     va_list vargs;
  61     (void) ctx;
  62
  63     va_start(vargs, fmt);
  64
  65     /* This output is not thread-safe, but that's good enough for the
  66      * standalone compiler.
  67      */
  68     fprintf(stderr, "Mesa problem: ");
  69     vfprintf(stderr, fmt, vargs);
  70     fprintf(stderr, "\n");
  71
  72     va_end(vargs);
  73 }
  74
  75 void
  76 _mesa_reference_shader_program_data(struct gl_context *ctx,
  77                                     struct gl_shader_program_data **ptr,
  78                                     struct gl_shader_program_data *data)
  79 {
  80    (void) ctx;
  81    *ptr = data;
  82 }
  83
  84 void
  85 _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
  86                        struct gl_shader *sh)
  87 {
  88    (void) ctx;
  89    *ptr = sh;
  90 }
  91
  92 void
  93 _mesa_reference_program_(struct gl_context *ctx, struct gl_program **ptr,
  94                          struct gl_program *prog)
  95 {
  96    (void) ctx;
  97    *ptr = prog;
  98 }
  99
 100 void
 101 _mesa_shader_debug(struct gl_context *, GLenum, GLuint *,
 102                    const char *)
 103 {
 104 }
 105
 106 struct gl_shader *
 107 _mesa_new_shader(GLuint name, gl_shader_stage stage)
 108 {
 109    struct gl_shader *shader;
 110
 111    assert(stage == MESA_SHADER_FRAGMENT || stage == MESA_SHADER_VERTEX);
 112    shader = rzalloc(NULL, struct gl_shader);
 113    if (shader) {
 114       shader->Stage = stage;
 115       shader->Name = name;
 116       shader->RefCount = 1;
 117    }
 118    return shader;
 119 }
 120
 121 GLbitfield
 122 _mesa_program_state_flags(UNUSED const gl_state_index16 state[STATE_LENGTH])
 123 {
 124    return 0;
 125 }
 126
 127 char *
 128 _mesa_program_state_string(UNUSED const gl_state_index16 state[STATE_LENGTH])
 129 {
 130    return NULL;
 131 }
 132
 133 void
 134 _mesa_delete_shader(struct gl_context *, struct gl_shader *sh)
 135 {
 136    free((void *)sh->Source);
 137    free(sh->Label);
 138    ralloc_free(sh);
 139 }
 140
 141 void
 142 _mesa_delete_linked_shader(struct gl_context *,
 143                            struct gl_linked_shader *sh)
 144 {
 145    ralloc_free(sh);
 146 }
 147
 148 void
 149 _mesa_clear_shader_program_data(struct gl_context *ctx,
 150                                 struct gl_shader_program *shProg)
 151 {
 152    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
 153       if (shProg->_LinkedShaders[i] != NULL) {
 154          _mesa_delete_linked_shader(ctx, shProg->_LinkedShaders[i]);
 155          shProg->_LinkedShaders[i] = NULL;
 156       }
 157    }
 158
 159    shProg->data->NumUniformStorage = 0;
 160    shProg->data->UniformStorage = NULL;
 161    shProg->NumUniformRemapTable = 0;
 162    shProg->UniformRemapTable = NULL;
 163    shProg->UniformHash = NULL;
 164
 165    ralloc_free(shProg->data->InfoLog);
 166    shProg->data->InfoLog = ralloc_strdup(shProg->data, "");
 167
 168    ralloc_free(shProg->data->UniformBlocks);
 169    shProg->data->UniformBlocks = NULL;
 170    shProg->data->NumUniformBlocks = 0;
 171
 172    ralloc_free(shProg->data->ShaderStorageBlocks);
 173    shProg->data->ShaderStorageBlocks = NULL;
 174    shProg->data->NumShaderStorageBlocks = 0;
 175
 176    ralloc_free(shProg->data->AtomicBuffers);
 177    shProg->data->AtomicBuffers = NULL;
 178    shProg->data->NumAtomicBuffers = 0;
 179 }
 180
 181 void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
 182 {
 183    memset(ctx, 0, sizeof(*ctx));
 184
 185    ctx->API = api;
 186
 187    ctx->Extensions.dummy_false = false;
 188    ctx->Extensions.dummy_true = true;
 189    ctx->Extensions.ARB_compute_shader = true;
 190    ctx->Extensions.ARB_compute_variable_group_size = true;
 191    ctx->Extensions.ARB_conservative_depth = true;
 192    ctx->Extensions.ARB_draw_instanced = true;
 193    ctx->Extensions.ARB_ES2_compatibility = true;
 194    ctx->Extensions.ARB_ES3_compatibility = true;
 195    ctx->Extensions.ARB_explicit_attrib_location = true;
 196    ctx->Extensions.ARB_fragment_coord_conventions = true;
 197    ctx->Extensions.ARB_fragment_layer_viewport = true;
 198    ctx->Extensions.ARB_gpu_shader5 = true;
 199    ctx->Extensions.ARB_gpu_shader_fp64 = true;
 200    ctx->Extensions.ARB_gpu_shader_int64 = true;
 201    ctx->Extensions.ARB_sample_shading = true;
 202    ctx->Extensions.ARB_shader_bit_encoding = true;
 203    ctx->Extensions.ARB_shader_draw_parameters = true;
 204    ctx->Extensions.ARB_shader_stencil_export = true;
 205    ctx->Extensions.ARB_shader_texture_lod = true;
 206    ctx->Extensions.ARB_shading_language_420pack = true;
 207    ctx->Extensions.ARB_shading_language_packing = true;
 208    ctx->Extensions.ARB_tessellation_shader = true;
 209    ctx->Extensions.ARB_texture_cube_map_array = true;
 210    ctx->Extensions.ARB_texture_gather = true;
 211    ctx->Extensions.ARB_texture_multisample = true;
 212    ctx->Extensions.ARB_texture_query_levels = true;
 213    ctx->Extensions.ARB_texture_query_lod = true;
 214    ctx->Extensions.ARB_uniform_buffer_object = true;
 215    ctx->Extensions.ARB_viewport_array = true;
 216    ctx->Extensions.ARB_cull_distance = true;
 217    ctx->Extensions.ARB_bindless_texture = true;
 218
 219    ctx->Extensions.OES_EGL_image_external = true;
 220    ctx->Extensions.OES_standard_derivatives = true;
 221
 222    ctx->Extensions.EXT_gpu_shader4 = true;
 223    ctx->Extensions.EXT_shader_integer_mix = true;
 224    ctx->Extensions.EXT_texture_array = true;
 225
 226    ctx->Extensions.MESA_shader_integer_functions = true;
 227
 228    ctx->Extensions.NV_texture_rectangle = true;
 229
 230    ctx->Const.GLSLVersion = 120;
 231
 232    /* 1.20 minimums. */
 233    ctx->Const.MaxLights = 8;
 234    ctx->Const.MaxClipPlanes = 6;
 235    ctx->Const.MaxTextureUnits = 2;
 236    ctx->Const.MaxTextureCoordUnits = 2;
 237    ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
 238
 239    ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 512;
 240    ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 32;
 241    ctx->Const.MaxVarying = 8; /* == gl_MaxVaryingFloats / 4 */
 242    ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 0;
 243    ctx->Const.MaxCombinedTextureImageUnits = 2;
 244    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 2;
 245    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 64;
 246    ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents = 32;
 247
 248    ctx->Const.MaxDrawBuffers = 1;
 249    ctx->Const.MaxComputeWorkGroupCount[0] = 65535;
 250    ctx->Const.MaxComputeWorkGroupCount[1] = 65535;
 251    ctx->Const.MaxComputeWorkGroupCount[2] = 65535;
 252    ctx->Const.MaxComputeWorkGroupSize[0] = 1024;
 253    ctx->Const.MaxComputeWorkGroupSize[1] = 1024;
 254    ctx->Const.MaxComputeWorkGroupSize[2] = 64;
 255    ctx->Const.MaxComputeWorkGroupInvocations = 1024;
 256    ctx->Const.MaxComputeVariableGroupSize[0] = 512;
 257    ctx->Const.MaxComputeVariableGroupSize[1] = 512;
 258    ctx->Const.MaxComputeVariableGroupSize[2] = 64;
 259    ctx->Const.MaxComputeVariableGroupInvocations = 512;
 260    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits = 16;
 261    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxUniformComponents = 1024;
 262    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxInputComponents = 0; /* not used */
 263    ctx->Const.Program[MESA_SHADER_COMPUTE].MaxOutputComponents = 0; /* not used */
 264
 265    /* Set up default shader compiler options. */
 266    struct gl_shader_compiler_options options;
 267    memset(&options, 0, sizeof(options));
 268    options.MaxUnrollIterations = 32;
 269    options.MaxIfDepth = UINT_MAX;
 270
 271    for (int sh = 0; sh < MESA_SHADER_STAGES; ++sh)
 272       memcpy(&ctx->Const.ShaderCompilerOptions[sh], &options, sizeof(options));
 273
 274    _mesa_locale_init();
 275 }