diff options
| -rw-r--r-- | src/glsl/link_varyings.cpp | 33 | ||||
| -rw-r--r-- | src/glsl/link_varyings.h | 2 |
2 files changed, 16 insertions, 19 deletions
diff --git a/src/glsl/link_varyings.cpp b/src/glsl/link_varyings.cpp index 25681d6..980b8d0 100644 --- a/src/glsl/link_varyings.cpp +++ b/src/glsl/link_varyings.cpp @@ -35,6 +35,7 @@ #include "linker.h" #include "link_varyings.h" #include "main/macros.h" +#include "program.h" /** @@ -154,10 +155,13 @@ cross_validate_outputs_to_inputs(struct gl_shader_program *prog, /** * Initialize this object based on a string that was passed to - * glTransformFeedbackVaryings. If there is a parse error, the error is - * reported using linker_error(), and false is returned. + * glTransformFeedbackVaryings. + * + * If the input is mal-formed, this call still succeeds, but it sets + * this->var_name to a mal-formed input, so tfeedback_decl::find_output_var() + * will fail to find any matching variable. */ -bool +void tfeedback_decl::init(struct gl_context *ctx, struct gl_shader_program *prog, const void *mem_ctx, const char *input) { @@ -175,7 +179,7 @@ tfeedback_decl::init(struct gl_context *ctx, struct gl_shader_program *prog, /* Parse gl_NextBuffer. */ if (strcmp(input, "gl_NextBuffer") == 0) { this->next_buffer_separator = true; - return true; + return; } /* Parse gl_SkipComponents. */ @@ -189,21 +193,17 @@ tfeedback_decl::init(struct gl_context *ctx, struct gl_shader_program *prog, this->skip_components = 4; if (this->skip_components) - return true; + return; } /* Parse a declaration. */ - const char *bracket = strrchr(input, '['); - - if (bracket) { - this->var_name = ralloc_strndup(mem_ctx, input, bracket - input); - if (sscanf(bracket, "[%u]", &this->array_subscript) != 1) { - linker_error(prog, "Cannot parse transform feedback varying %s", input); - return false; - } + const char *base_name_end; + long subscript = parse_program_resource_name(input, &base_name_end); + this->var_name = ralloc_strndup(mem_ctx, input, base_name_end - input); + if (subscript >= 0) { + this->array_subscript = subscript; this->is_subscripted = true; } else { - this->var_name = ralloc_strdup(mem_ctx, input); this->is_subscripted = false; } @@ -215,8 +215,6 @@ tfeedback_decl::init(struct gl_context *ctx, struct gl_shader_program *prog, strcmp(this->var_name, "gl_ClipDistance") == 0) { this->is_clip_distance_mesa = true; } - - return true; } @@ -449,8 +447,7 @@ parse_tfeedback_decls(struct gl_context *ctx, struct gl_shader_program *prog, char **varying_names, tfeedback_decl *decls) { for (unsigned i = 0; i < num_names; ++i) { - if (!decls[i].init(ctx, prog, mem_ctx, varying_names[i])) - return false; + decls[i].init(ctx, prog, mem_ctx, varying_names[i]); if (!decls[i].is_varying()) continue; diff --git a/src/glsl/link_varyings.h b/src/glsl/link_varyings.h index 057e4b2..806bd1c 100644 --- a/src/glsl/link_varyings.h +++ b/src/glsl/link_varyings.h @@ -48,7 +48,7 @@ class ir_variable; class tfeedback_decl { public: - bool init(struct gl_context *ctx, struct gl_shader_program *prog, + void init(struct gl_context *ctx, struct gl_shader_program *prog, const void *mem_ctx, const char *input); static bool is_same(const tfeedback_decl &x, const tfeedback_decl &y); bool assign_location(struct gl_context *ctx, struct gl_shader_program *prog, |