*
* Implementation of GLSL-related API functions.
* The glUniform* functions are in uniforms.c
- *
- *
- * XXX things to do:
- * 1. Check that the right error code is generated for all _mesa_error() calls.
- * 2. Insert FLUSH_VERTICES calls in various places
*/
#include <errno.h>
#include <stdbool.h>
#include <c99_alloca.h>
+
#include "main/glheader.h"
#include "main/context.h"
#include "main/enums.h"
#include "main/state.h"
#include "main/transformfeedback.h"
#include "main/uniforms.h"
+#include "compiler/glsl/builtin_functions.h"
#include "compiler/glsl/glsl_parser_extras.h"
#include "compiler/glsl/ir.h"
#include "compiler/glsl/ir_uniform.h"
#include "util/mesa-sha1.h"
#include "util/crc32.h"
#include "util/os_file.h"
+#include "util/simple_list.h"
+#include "util/u_string.h"
/**
* Return mask of GLSL_x flags by examining the MESA_GLSL env var.
}
return;
case GL_GEOMETRY_SHADER_INVOCATIONS:
- if (!has_gs || !ctx->Extensions.ARB_gpu_shader5)
+ if (!has_gs ||
+ (_mesa_is_desktop_gl(ctx) && !ctx->Extensions.ARB_gpu_shader5)) {
break;
+ }
if (check_gs_query(ctx, shProg)) {
*params = shProg->_LinkedShaders[MESA_SHADER_GEOMETRY]->
Program->info.gs.invocations;
#endif
}
+static void
+ensure_builtin_types(struct gl_context *ctx)
+{
+ if (!ctx->shader_builtin_ref) {
+ _mesa_glsl_builtin_functions_init_or_ref();
+ ctx->shader_builtin_ref = true;
+ }
+}
/**
* Compile a shader.
_mesa_log("%s\n", sh->Source);
}
+ ensure_builtin_types(ctx);
+
/* this call will set the shader->CompileStatus field to indicate if
* compilation was successful.
*/
}
+struct update_programs_in_pipeline_params
+{
+ struct gl_context *ctx;
+ struct gl_shader_program *shProg;
+};
+
+static void
+update_programs_in_pipeline(GLuint key, void *data, void *userData)
+{
+ struct update_programs_in_pipeline_params *params =
+ (struct update_programs_in_pipeline_params *) userData;
+ struct gl_pipeline_object *obj = (struct gl_pipeline_object *) data;
+
+ for (unsigned stage = 0; stage < MESA_SHADER_STAGES; stage++) {
+ if (obj->CurrentProgram[stage] &&
+ obj->CurrentProgram[stage]->Id == params->shProg->Name) {
+ struct gl_program *prog = params->shProg->_LinkedShaders[stage]->Program;
+ _mesa_use_program(params->ctx, stage, params->shProg, prog, obj);
+ }
+ }
+}
+
+
/**
* Link a program's shaders.
*/
ctx->_Shader->CurrentProgram[stage]->Id == shProg->Name) {
programs_in_use |= 1 << stage;
}
- }
+ }
+
+ ensure_builtin_types(ctx);
FLUSH_VERTICES(ctx, 0);
_mesa_glsl_link_shader(ctx, shProg);
* the state of any program pipeline for all stages where the program
* is attached."
*/
- if (shProg->data->LinkStatus && programs_in_use) {
+ if (shProg->data->LinkStatus) {
while (programs_in_use) {
const int stage = u_bit_scan(&programs_in_use);
_mesa_use_program(ctx, stage, shProg, prog, ctx->_Shader);
}
+
+ if (ctx->Pipeline.Objects) {
+ struct update_programs_in_pipeline_params params = {
+ .ctx = ctx,
+ .shProg = shProg
+ };
+ _mesa_HashWalk(ctx->Pipeline.Objects, update_programs_in_pipeline,
+ ¶ms);
+ }
}
/* Capture .shader_test files. */
void GLAPIENTRY
_mesa_ReleaseShaderCompiler(void)
{
- _mesa_destroy_shader_compiler_caches();
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (ctx->shader_builtin_ref) {
+ _mesa_glsl_builtin_functions_decref();
+ ctx->shader_builtin_ref = false;
+ }
}
&shTarget->ReferencedPrograms[stage],
shProg);
_mesa_reference_program(ctx, target, prog);
+ _mesa_update_allow_draw_out_of_order(ctx);
if (stage == MESA_SHADER_VERTEX)
_mesa_update_vertex_processing_mode(ctx);
return;
_mesa_PatchParameteri_no_error(GLenum pname, GLint value)
{
GET_CURRENT_CONTEXT(ctx);
+ FLUSH_VERTICES(ctx, 0);
ctx->TessCtrlProgram.patch_vertices = value;
}
return;
}
+ FLUSH_VERTICES(ctx, 0);
ctx->TessCtrlProgram.patch_vertices = value;
}
}
}
+/* This is simple list entry that will be used to hold a list of string
+ * tokens of a parsed shader include path.
+ */
+struct sh_incl_path_entry
+{
+ struct sh_incl_path_entry *next;
+ struct sh_incl_path_entry *prev;
+
+ char *path;
+};
+
+/* Nodes of the shader include tree */
+struct sh_incl_path_ht_entry
+{
+ struct hash_table *path;
+ char *shader_source;
+};
+
+struct shader_includes {
+ /* Array to hold include paths given to glCompileShaderIncludeARB() */
+ struct sh_incl_path_entry **include_paths;
+ size_t num_include_paths;
+ size_t relative_path_cursor;
+
+ /* Root hash table holding the shader include tree */
+ struct hash_table *shader_include_tree;
+};
+
+void
+_mesa_init_shader_includes(struct gl_shared_state *shared)
+{
+ shared->ShaderIncludes = calloc(1, sizeof(struct shader_includes));
+ shared->ShaderIncludes->shader_include_tree =
+ _mesa_hash_table_create(NULL, _mesa_hash_string,
+ _mesa_key_string_equal);
+}
+
+size_t
+_mesa_get_shader_include_cursor(struct gl_shared_state *shared)
+{
+ return shared->ShaderIncludes->relative_path_cursor;
+}
+
+void
+_mesa_set_shader_include_cursor(struct gl_shared_state *shared, size_t cursor)
+{
+ shared->ShaderIncludes->relative_path_cursor = cursor;
+}
+
+static void
+destroy_shader_include(struct hash_entry *entry)
+{
+ struct sh_incl_path_ht_entry *sh_incl_ht_entry =
+ (struct sh_incl_path_ht_entry *) entry->data;
+
+ _mesa_hash_table_destroy(sh_incl_ht_entry->path, destroy_shader_include);
+ free(sh_incl_ht_entry->shader_source);
+ free(sh_incl_ht_entry);
+}
+
+void
+_mesa_destroy_shader_includes(struct gl_shared_state *shared)
+{
+ _mesa_hash_table_destroy(shared->ShaderIncludes->shader_include_tree,
+ destroy_shader_include);
+ free(shared->ShaderIncludes);
+}
+
+static bool
+valid_path_format(const char *str, bool relative_path)
+{
+ int i = 0;
+
+ if (!str[i] || (!relative_path && str[i] != '/'))
+ return false;
+
+ i++;
+
+ while (str[i]) {
+ const char c = str[i++];
+ if (('A' <= c && c <= 'Z') ||
+ ('a' <= c && c <= 'z') ||
+ ('0' <= c && c <= '9'))
+ continue;
+
+ if (c == '/') {
+ if (str[i - 2] == '/')
+ return false;
+
+ continue;
+ }
+
+ if (strchr("^. _+*%[](){}|&~=!:;,?-", c) == NULL)
+ return false;
+ }
+
+ if (str[i - 1] == '/')
+ return false;
+
+ return true;
+}
+
+
+static bool
+validate_and_tokenise_sh_incl(struct gl_context *ctx,
+ void *mem_ctx,
+ struct sh_incl_path_entry **path_list,
+ char *full_path, bool error_check)
+{
+ bool relative_path = ctx->Shared->ShaderIncludes->num_include_paths;
+
+ if (!valid_path_format(full_path, relative_path)) {
+ if (error_check) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glNamedStringARB(invalid name %s)", full_path);
+ }
+ return false;
+ }
+
+ char *save_ptr = NULL;
+ char *path_str = strtok_r(full_path, "/", &save_ptr);
+
+ *path_list = rzalloc(mem_ctx, struct sh_incl_path_entry);
+
+ make_empty_list(*path_list);
+
+ while (path_str != NULL) {
+ if (strlen(path_str) == 0) {
+ if (error_check) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glNamedStringARB(invalid name %s)", full_path);
+ }
+
+ return false;
+ }
+
+ if (strcmp(path_str, ".") == 0) {
+ /* Do nothing */
+ } else if (strcmp(path_str, "..") == 0) {
+ struct sh_incl_path_entry *last = last_elem(*path_list);
+ remove_from_list(last);
+ } else {
+ struct sh_incl_path_entry *path =
+ rzalloc(mem_ctx, struct sh_incl_path_entry);
+
+ path->path = strdup(path_str);
+ insert_at_tail(*path_list, path);
+ }
+
+ path_str = strtok_r(NULL, "/", &save_ptr);
+ }
+
+ return true;
+}
+
+static struct sh_incl_path_ht_entry *
+lookup_shader_include(struct gl_context *ctx, char *path,
+ bool error_check)
+{
+ void *mem_ctx = ralloc_context(NULL);
+ struct sh_incl_path_entry *path_list;
+
+ if (!validate_and_tokenise_sh_incl(ctx, mem_ctx, &path_list, path,
+ error_check)) {
+ ralloc_free(mem_ctx);
+ return NULL;
+ }
+
+ struct sh_incl_path_ht_entry *sh_incl_ht_entry = NULL;
+ struct hash_table *path_ht =
+ ctx->Shared->ShaderIncludes->shader_include_tree;
+
+ size_t count = ctx->Shared->ShaderIncludes->num_include_paths;
+ bool relative_path = path[0] != '/';
+
+ size_t i = ctx->Shared->ShaderIncludes->relative_path_cursor;
+ bool use_cursor = ctx->Shared->ShaderIncludes->relative_path_cursor;
+
+ do {
+ struct sh_incl_path_entry *entry;
+
+ if (relative_path) {
+next_relative_path:
+ {
+ struct sh_incl_path_entry *rel_path_list =
+ ctx->Shared->ShaderIncludes->include_paths[i];
+ foreach(entry, rel_path_list) {
+ struct hash_entry *ht_entry =
+ _mesa_hash_table_search(path_ht, entry->path);
+
+ if (!ht_entry) {
+ /* Reset search path and skip to the next include path */
+ path_ht = ctx->Shared->ShaderIncludes->shader_include_tree;
+ sh_incl_ht_entry = NULL;
+ if (use_cursor) {
+ i = 0;
+ use_cursor = false;
+
+ goto next_relative_path;
+ }
+ i++;
+ if (i < count)
+ goto next_relative_path;
+ else
+ break;
+ } else {
+ sh_incl_ht_entry =
+ (struct sh_incl_path_ht_entry *) ht_entry->data;
+ }
+
+ path_ht = sh_incl_ht_entry->path;
+ }
+ }
+ }
+
+ foreach(entry, path_list) {
+ struct hash_entry *ht_entry =
+ _mesa_hash_table_search(path_ht, entry->path);
+
+ if (!ht_entry) {
+ /* Reset search path and skip to the next include path */
+ path_ht = ctx->Shared->ShaderIncludes->shader_include_tree;
+ sh_incl_ht_entry = NULL;
+ if (use_cursor) {
+ i = 0;
+ use_cursor = false;
+
+ break;
+ }
+ i++;
+ break;
+ } else {
+
+ sh_incl_ht_entry =
+ (struct sh_incl_path_ht_entry *) ht_entry->data;
+ }
+
+ path_ht = sh_incl_ht_entry->path;
+ }
+
+ if (i < count &&
+ (sh_incl_ht_entry == NULL || !sh_incl_ht_entry->shader_source))
+ continue;
+
+ /* If we get here then we have found a matching path or exahusted our
+ * relative search paths.
+ */
+ ctx->Shared->ShaderIncludes->relative_path_cursor = i;
+ break;
+ } while (i < count);
+
+ ralloc_free(mem_ctx);
+
+ return sh_incl_ht_entry;
+}
+
+const char *
+_mesa_lookup_shader_include(struct gl_context *ctx, char *path,
+ bool error_check)
+{
+ struct sh_incl_path_ht_entry *shader_include =
+ lookup_shader_include(ctx, path, error_check);
+
+ return shader_include ? shader_include->shader_source : NULL;
+}
+
+static char *
+copy_string(struct gl_context *ctx, const char *str, int str_len,
+ const char *caller)
+{
+ if (!str) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(NULL string)", caller);
+ return NULL;
+ }
+
+ char *cp;
+ if (str_len == -1)
+ cp = strdup(str);
+ else {
+ cp = calloc(sizeof(char), str_len + 1);
+ memcpy(cp, str, str_len);
+ }
+
+ return cp;
+}
+
+GLvoid GLAPIENTRY
+_mesa_NamedStringARB(GLenum type, GLint namelen, const GLchar *name,
+ GLint stringlen, const GLchar *string)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const char *caller = "glNamedStringARB";
+
+ if (type != GL_SHADER_INCLUDE_ARB) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(invalid type)", caller);
+ return;
+ }
+
+ char *name_cp = copy_string(ctx, name, namelen, caller);
+ char *string_cp = copy_string(ctx, string, stringlen, caller);
+ if (!name_cp || !string_cp) {
+ free(string_cp);
+ free(name_cp);
+ return;
+ }
+
+ void *mem_ctx = ralloc_context(NULL);
+ struct sh_incl_path_entry *path_list;
+
+ if (!validate_and_tokenise_sh_incl(ctx, mem_ctx, &path_list, name_cp,
+ true)) {
+ free(string_cp);
+ free(name_cp);
+ ralloc_free(mem_ctx);
+ return;
+ }
+
+ mtx_lock(&ctx->Shared->ShaderIncludeMutex);
+
+ struct hash_table *path_ht =
+ ctx->Shared->ShaderIncludes->shader_include_tree;
+
+ struct sh_incl_path_entry *entry;
+ foreach(entry, path_list) {
+ struct hash_entry *ht_entry =
+ _mesa_hash_table_search(path_ht, entry->path);
+
+ struct sh_incl_path_ht_entry *sh_incl_ht_entry;
+ if (!ht_entry) {
+ sh_incl_ht_entry = calloc(1, sizeof(struct sh_incl_path_ht_entry));
+ sh_incl_ht_entry->path =
+ _mesa_hash_table_create(NULL, _mesa_hash_string,
+ _mesa_key_string_equal);
+ _mesa_hash_table_insert(path_ht, entry->path, sh_incl_ht_entry);
+ } else {
+ sh_incl_ht_entry = (struct sh_incl_path_ht_entry *) ht_entry->data;
+ }
+
+ path_ht = sh_incl_ht_entry->path;
+
+ if (last_elem(path_list) == entry) {
+ free(sh_incl_ht_entry->shader_source);
+ sh_incl_ht_entry->shader_source = string_cp;
+ }
+ }
+
+ mtx_unlock(&ctx->Shared->ShaderIncludeMutex);
+
+ free(name_cp);
+ ralloc_free(mem_ctx);
+}
+
+GLvoid GLAPIENTRY
+_mesa_DeleteNamedStringARB(GLint namelen, const GLchar *name)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const char *caller = "glDeleteNamedStringARB";
+
+ char *name_cp = copy_string(ctx, name, namelen, caller);
+ if (!name_cp)
+ return;
+
+ struct sh_incl_path_ht_entry *shader_include =
+ lookup_shader_include(ctx, name_cp, true);
+
+ if (!shader_include) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(no string associated with path %s)", caller, name_cp);
+ free(name_cp);
+ return;
+ }
+
+ mtx_lock(&ctx->Shared->ShaderIncludeMutex);
+
+ free(shader_include->shader_source);
+ shader_include->shader_source = NULL;
+
+ mtx_unlock(&ctx->Shared->ShaderIncludeMutex);
+
+ free(name_cp);
+}
+
+GLvoid GLAPIENTRY
+_mesa_CompileShaderIncludeARB(GLuint shader, GLsizei count,
+ const GLchar* const *path, const GLint *length)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const char *caller = "glCompileShaderIncludeARB";
+
+ if (count > 0 && path == NULL) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(count > 0 && path == NULL)",
+ caller);
+ return;
+ }
+
+ void *mem_ctx = ralloc_context(NULL);
+
+ mtx_lock(&ctx->Shared->ShaderIncludeMutex);
+
+ ctx->Shared->ShaderIncludes->include_paths =
+ ralloc_array_size(mem_ctx, sizeof(struct sh_incl_path_entry *), count);
+
+ for (size_t i = 0; i < count; i++) {
+ char *path_cp = copy_string(ctx, path[i], length ? length[i] : -1,
+ caller);
+ if (!path_cp) {
+ goto exit;
+ }
+
+ struct sh_incl_path_entry *path_list;
+
+ if (!validate_and_tokenise_sh_incl(ctx, mem_ctx, &path_list, path_cp,
+ true)) {
+ free(path_cp);
+ goto exit;
+ }
+
+ ctx->Shared->ShaderIncludes->include_paths[i] = path_list;
+
+ free(path_cp);
+ }
+
+ /* We must set this *after* all calls to validate_and_tokenise_sh_incl()
+ * are done as we use this to decide if we need to check the start of the
+ * path for a '/'
+ */
+ ctx->Shared->ShaderIncludes->num_include_paths = count;
+
+ struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
+ if (!sh) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s(shader)", caller);
+ goto exit;
+ }
+
+ _mesa_compile_shader(ctx, sh);
+
+exit:
+ ctx->Shared->ShaderIncludes->num_include_paths = 0;
+ ctx->Shared->ShaderIncludes->relative_path_cursor = 0;
+ ctx->Shared->ShaderIncludes->include_paths = NULL;
+
+ mtx_unlock(&ctx->Shared->ShaderIncludeMutex);
+
+ ralloc_free(mem_ctx);
+}
+
+GLboolean GLAPIENTRY
+_mesa_IsNamedStringARB(GLint namelen, const GLchar *name)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (!name)
+ return false;
+
+ char *name_cp = copy_string(ctx, name, namelen, "");
+
+ const char *source = _mesa_lookup_shader_include(ctx, name_cp, false);
+ free(name_cp);
+
+ if (!source)
+ return false;
+
+ return true;
+}
+
+GLvoid GLAPIENTRY
+_mesa_GetNamedStringARB(GLint namelen, const GLchar *name, GLsizei bufSize,
+ GLint *stringlen, GLchar *string)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const char *caller = "glGetNamedStringARB";
+
+ char *name_cp = copy_string(ctx, name, namelen, caller);
+ if (!name_cp)
+ return;
+
+ const char *source = _mesa_lookup_shader_include(ctx, name_cp, true);
+ if (!source) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(no string associated with path %s)", caller, name_cp);
+ free(name_cp);
+ return;
+ }
+
+ size_t size = MIN2(strlen(source), bufSize - 1);
+ memcpy(string, source, size);
+ string[size] = '\0';
+
+ *stringlen = size;
+
+ free(name_cp);
+}
+
+GLvoid GLAPIENTRY
+_mesa_GetNamedStringivARB(GLint namelen, const GLchar *name,
+ GLenum pname, GLint *params)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ const char *caller = "glGetNamedStringivARB";
+
+ char *name_cp = copy_string(ctx, name, namelen, caller);
+ if (!name_cp)
+ return;
+
+ const char *source = _mesa_lookup_shader_include(ctx, name_cp, true);
+ if (!source) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(no string associated with path %s)", caller, name_cp);
+ free(name_cp);
+ return;
+ }
+
+ switch (pname) {
+ case GL_NAMED_STRING_LENGTH_ARB:
+ *params = strlen(source) + 1;
+ break;
+ case GL_NAMED_STRING_TYPE_ARB:
+ *params = GL_SHADER_INCLUDE_ARB;
+ break;
+ default:
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname)", caller);
+ break;
+ }
+
+ free(name_cp);
+}
+
static int
find_compat_subroutine(struct gl_program *p, const struct glsl_type *type)
{
projects / mesa.git / blobdiff