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mesa/src/glsl/main.cpp
Andres Gomez 1398ed724a glsl_compiler: Add binding hash tables to avoid SIGSEVs on linking stage 
When using the stand alone compiler, if we try to link a shader with vertex
attributes it will segfault on linking as the binding hash tables are not
included in the shader program. Obviously, we cannot make the linking stage
succeed without the bound attributes but we can prevent the crash and just
let the linker spit its own error.

Reviewed-by: Brian Paul <brianp@vmware.com>
2014-11-18 08:47:04 -07:00

433 lines
15 KiB
C++
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/*
* Copyright © 2008, 2009 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <getopt.h>
/** @file main.cpp
*
* This file is the main() routine and scaffolding for producing
* builtin_compiler (which doesn't include builtins itself and is used
* to generate the profile information for builtin_function.cpp), and
* for glsl_compiler (which does include builtins and can be used to
* offline compile GLSL code and examine the resulting GLSL IR.
*/
#include "ast.h"
#include "glsl_parser_extras.h"
#include "ir_optimization.h"
#include "program.h"
#include "program/hash_table.h"
#include "loop_analysis.h"
#include "standalone_scaffolding.h"
static int glsl_version = 330;
extern "C" void
_mesa_error_no_memory(const char *caller)
{
fprintf(stderr, "Mesa error: out of memory in %s", caller);
}
static void
initialize_context(struct gl_context *ctx, gl_api api)
{
initialize_context_to_defaults(ctx, api);
/* The standalone compiler needs to claim support for almost
* everything in order to compile the built-in functions.
*/
ctx->Const.GLSLVersion = glsl_version;
ctx->Extensions.ARB_ES3_compatibility = true;
ctx->Const.MaxComputeWorkGroupCount[0] = 65535;
ctx->Const.MaxComputeWorkGroupCount[1] = 65535;
ctx->Const.MaxComputeWorkGroupCount[2] = 65535;
ctx->Const.MaxComputeWorkGroupSize[0] = 1024;
ctx->Const.MaxComputeWorkGroupSize[1] = 1024;
ctx->Const.MaxComputeWorkGroupSize[2] = 64;
ctx->Const.MaxComputeWorkGroupInvocations = 1024;
ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_COMPUTE].MaxUniformComponents = 1024;
ctx->Const.Program[MESA_SHADER_COMPUTE].MaxInputComponents = 0; /* not used */
ctx->Const.Program[MESA_SHADER_COMPUTE].MaxOutputComponents = 0; /* not used */
switch (ctx->Const.GLSLVersion) {
case 100:
ctx->Const.MaxClipPlanes = 0;
ctx->Const.MaxCombinedTextureImageUnits = 8;
ctx->Const.MaxDrawBuffers = 2;
ctx->Const.MinProgramTexelOffset = 0;
ctx->Const.MaxProgramTexelOffset = 0;
ctx->Const.MaxLights = 0;
ctx->Const.MaxTextureCoordUnits = 0;
ctx->Const.MaxTextureUnits = 8;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 8;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 0;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 128 * 4;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 32;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits =
ctx->Const.MaxCombinedTextureImageUnits;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 16 * 4;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
break;
case 110:
case 120:
ctx->Const.MaxClipPlanes = 6;
ctx->Const.MaxCombinedTextureImageUnits = 2;
ctx->Const.MaxDrawBuffers = 1;
ctx->Const.MinProgramTexelOffset = 0;
ctx->Const.MaxProgramTexelOffset = 0;
ctx->Const.MaxLights = 8;
ctx->Const.MaxTextureCoordUnits = 2;
ctx->Const.MaxTextureUnits = 2;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 0;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 512;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 32;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits =
ctx->Const.MaxCombinedTextureImageUnits;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 64;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
break;
case 130:
case 140:
ctx->Const.MaxClipPlanes = 8;
ctx->Const.MaxCombinedTextureImageUnits = 16;
ctx->Const.MaxDrawBuffers = 8;
ctx->Const.MinProgramTexelOffset = -8;
ctx->Const.MaxProgramTexelOffset = 7;
ctx->Const.MaxLights = 8;
ctx->Const.MaxTextureCoordUnits = 8;
ctx->Const.MaxTextureUnits = 2;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 64;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 1024;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4;
break;
case 150:
case 330:
ctx->Const.MaxClipPlanes = 8;
ctx->Const.MaxDrawBuffers = 8;
ctx->Const.MinProgramTexelOffset = -8;
ctx->Const.MaxProgramTexelOffset = 7;
ctx->Const.MaxLights = 8;
ctx->Const.MaxTextureCoordUnits = 8;
ctx->Const.MaxTextureUnits = 2;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 64;
ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxUniformComponents = 1024;
ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxInputComponents =
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents;
ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents = 128;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 1024;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents =
ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxOutputComponents;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
ctx->Const.MaxCombinedTextureImageUnits =
ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits
+ ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits
+ ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits;
ctx->Const.MaxGeometryOutputVertices = 256;
ctx->Const.MaxGeometryTotalOutputComponents = 1024;
// ctx->Const.MaxGeometryVaryingComponents = 64;
ctx->Const.MaxVarying = 60 / 4;
break;
case 300:
ctx->Const.MaxClipPlanes = 8;
ctx->Const.MaxCombinedTextureImageUnits = 32;
ctx->Const.MaxDrawBuffers = 4;
ctx->Const.MinProgramTexelOffset = -8;
ctx->Const.MaxProgramTexelOffset = 7;
ctx->Const.MaxLights = 0;
ctx->Const.MaxTextureCoordUnits = 0;
ctx->Const.MaxTextureUnits = 0;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxAttribs = 16;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents = 1024;
ctx->Const.Program[MESA_SHADER_VERTEX].MaxInputComponents = 0; /* not used */
ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents = 16 * 4;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits = 16;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents = 224;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents = 15 * 4;
ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxOutputComponents = 0; /* not used */
ctx->Const.MaxVarying = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents / 4;
break;
}
ctx->Const.GenerateTemporaryNames = true;
ctx->Driver.NewShader = _mesa_new_shader;
}
/* Returned string will have 'ctx' as its ralloc owner. */
static char *
load_text_file(void *ctx, const char *file_name)
{
char *text = NULL;
size_t size;
size_t total_read = 0;
FILE *fp = fopen(file_name, "rb");
if (!fp) {
return NULL;
}
fseek(fp, 0L, SEEK_END);
size = ftell(fp);
fseek(fp, 0L, SEEK_SET);
text = (char *) ralloc_size(ctx, size + 1);
if (text != NULL) {
do {
size_t bytes = fread(text + total_read,
1, size - total_read, fp);
if (bytes < size - total_read) {
free(text);
text = NULL;
goto error;
}
if (bytes == 0) {
break;
}
total_read += bytes;
} while (total_read < size);
text[total_read] = '\0';
error:;
}
fclose(fp);
return text;
}
int dump_ast = 0;
int dump_hir = 0;
int dump_lir = 0;
int do_link = 0;
const struct option compiler_opts[] = {
{ "dump-ast", no_argument, &dump_ast, 1 },
{ "dump-hir", no_argument, &dump_hir, 1 },
{ "dump-lir", no_argument, &dump_lir, 1 },
{ "link", no_argument, &do_link, 1 },
{ "version", required_argument, NULL, 'v' },
{ NULL, 0, NULL, 0 }
};
/**
* \brief Print proper usage and exit with failure.
*/
void
usage_fail(const char *name)
{
const char *header =
"usage: %s [options] <file.vert | file.geom | file.frag>\n"
"\n"
"Possible options are:\n";
printf(header, name, name);
for (const struct option *o = compiler_opts; o->name != 0; ++o) {
printf(" --%s\n", o->name);
}
exit(EXIT_FAILURE);
}
void
compile_shader(struct gl_context *ctx, struct gl_shader *shader)
{
struct _mesa_glsl_parse_state *state =
new(shader) _mesa_glsl_parse_state(ctx, shader->Stage, shader);
_mesa_glsl_compile_shader(ctx, shader, dump_ast, dump_hir);
/* Print out the resulting IR */
if (!state->error && dump_lir) {
_mesa_print_ir(stdout, shader->ir, state);
}
return;
}
int
main(int argc, char **argv)
{
int status = EXIT_SUCCESS;
struct gl_context local_ctx;
struct gl_context *ctx = &local_ctx;
bool glsl_es = false;
int c;
int idx = 0;
while ((c = getopt_long(argc, argv, "", compiler_opts, &idx)) != -1) {
switch (c) {
case 'v':
glsl_version = strtol(optarg, NULL, 10);
switch (glsl_version) {
case 100:
case 300:
glsl_es = true;
break;
case 110:
case 120:
case 130:
case 140:
case 150:
case 330:
glsl_es = false;
break;
default:
fprintf(stderr, "Unrecognized GLSL version `%s'\n", optarg);
usage_fail(argv[0]);
break;
}
break;
default:
break;
}
}
if (argc <= optind)
usage_fail(argv[0]);
initialize_context(ctx, (glsl_es) ? API_OPENGLES2 : API_OPENGL_COMPAT);
struct gl_shader_program *whole_program;
whole_program = rzalloc (NULL, struct gl_shader_program);
assert(whole_program != NULL);
whole_program->InfoLog = ralloc_strdup(whole_program, "");
/* Created just to avoid segmentation faults */
whole_program->AttributeBindings = new string_to_uint_map;
whole_program->FragDataBindings = new string_to_uint_map;
whole_program->FragDataIndexBindings = new string_to_uint_map;
for (/* empty */; argc > optind; optind++) {
whole_program->Shaders =
reralloc(whole_program, whole_program->Shaders,
struct gl_shader *, whole_program->NumShaders + 1);
assert(whole_program->Shaders != NULL);
struct gl_shader *shader = rzalloc(whole_program, gl_shader);
whole_program->Shaders[whole_program->NumShaders] = shader;
whole_program->NumShaders++;
const unsigned len = strlen(argv[optind]);
if (len < 6)
usage_fail(argv[0]);
const char *const ext = & argv[optind][len - 5];
if (strncmp(".vert", ext, 5) == 0 || strncmp(".glsl", ext, 5) == 0)
shader->Type = GL_VERTEX_SHADER;
else if (strncmp(".geom", ext, 5) == 0)
shader->Type = GL_GEOMETRY_SHADER;
else if (strncmp(".frag", ext, 5) == 0)
shader->Type = GL_FRAGMENT_SHADER;
else if (strncmp(".comp", ext, 5) == 0)
shader->Type = GL_COMPUTE_SHADER;
else
usage_fail(argv[0]);
shader->Stage = _mesa_shader_enum_to_shader_stage(shader->Type);
shader->Source = load_text_file(whole_program, argv[optind]);
if (shader->Source == NULL) {
printf("File \"%s\" does not exist.\n", argv[optind]);
exit(EXIT_FAILURE);
}
compile_shader(ctx, shader);
if (strlen(shader->InfoLog) > 0)
printf("Info log for %s:\n%s\n", argv[optind], shader->InfoLog);
if (!shader->CompileStatus) {
status = EXIT_FAILURE;
break;
}
}
if ((status == EXIT_SUCCESS) && do_link) {
_mesa_clear_shader_program_data(whole_program);
link_shaders(ctx, whole_program);
status = (whole_program->LinkStatus) ? EXIT_SUCCESS : EXIT_FAILURE;
if (strlen(whole_program->InfoLog) > 0)
printf("Info log for linking:\n%s\n", whole_program->InfoLog);
}
for (unsigned i = 0; i < MESA_SHADER_STAGES; i++)
ralloc_free(whole_program->_LinkedShaders[i]);
delete whole_program->AttributeBindings;
delete whole_program->FragDataBindings;
delete whole_program->FragDataIndexBindings;
ralloc_free(whole_program);
_mesa_glsl_release_types();
_mesa_glsl_release_builtin_functions();
return status;
}
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