glsl/linker: check for xfb_offset aliasing

[mesa.git] / src / compiler / glsl / link_varyings.h

diff --git a/src/compiler/glsl/link_varyings.h b/src/compiler/glsl/link_varyings.h
index 7165ecb918468e349629fdd18014050f784350b7..b802250819e718bbd2a4da6dcf9e72b68b7406dc 100644 (file)
--- a/src/compiler/glsl/link_varyings.h
+++ b/src/compiler/glsl/link_varyings.h
@@ -21,7 +21,6 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
-#pragma once
 #ifndef GLSL_LINK_VARYINGS_H
 #define GLSL_LINK_VARYINGS_H
 
@@ -34,7 +33,8 @@
 
 
 #include "main/glheader.h"
-
+#include "program/prog_parameter.h"
+#include "util/bitset.h"
 
 struct gl_shader_program;
 struct gl_shader;
@@ -98,7 +98,10 @@ public:
    unsigned get_num_outputs() const;
    bool store(struct gl_context *ctx, struct gl_shader_program *prog,
               struct gl_transform_feedback_info *info, unsigned buffer,
-              const unsigned max_outputs, bool has_xfb_qualifiers) const;
+              unsigned buffer_index, const unsigned max_outputs,
+              BITSET_WORD *used_components[MAX_FEEDBACK_BUFFERS],
+              bool *explicit_stride, bool has_xfb_qualifiers,
+              const void *mem_ctx) const;
    const tfeedback_candidate *find_candidate(gl_shader_program *prog,
                                              hash_table *tfeedback_candidates);
 
@@ -107,6 +110,14 @@ public:
       return this->next_buffer_separator;
    }
 
+   bool is_varying_written() const
+   {
+      if (this->next_buffer_separator || this->skip_components)
+         return false;
+
+      return this->matched_candidate->toplevel_var->data.assigned;
+   }
+
    bool is_varying() const
    {
       return !this->next_buffer_separator && !this->skip_components;
@@ -142,7 +153,7 @@ public:
          return this->size;
       else
          return this->vector_elements * this->matrix_columns * this->size *
-            (this->is_double() ? 2 : 1);
+            (this->is_64bit() ? 2 : 1);
    }
 
    unsigned get_location() const {
@@ -151,26 +162,9 @@ public:
 
 private:
 
-   bool is_double() const
+   bool is_64bit() const
    {
-      switch (this->type) {
-      case GL_DOUBLE:
-      case GL_DOUBLE_VEC2:
-      case GL_DOUBLE_VEC3:
-      case GL_DOUBLE_VEC4:
-      case GL_DOUBLE_MAT2:
-      case GL_DOUBLE_MAT2x3:
-      case GL_DOUBLE_MAT2x4:
-      case GL_DOUBLE_MAT3:
-      case GL_DOUBLE_MAT3x2:
-      case GL_DOUBLE_MAT3x4:
-      case GL_DOUBLE_MAT4:
-      case GL_DOUBLE_MAT4x2:
-      case GL_DOUBLE_MAT4x3:
-         return true;
-      default:
-         return false;
-      }
+      return _mesa_gl_datatype_is_64bit(this->type);
    }
 
    /**
@@ -201,6 +195,7 @@ private:
    enum {
       none,
       clip_distance,
+      cull_distance,
       tess_level_outer,
       tess_level_inner,
    } lowered_builtin_array_variable;
@@ -278,48 +273,20 @@ private:
    unsigned stream_id;
 };
 
-
-void
-cross_validate_outputs_to_inputs(struct gl_shader_program *prog,
-                                gl_shader *producer, gl_shader *consumer);
-
 bool
-parse_tfeedback_decls(struct gl_context *ctx, struct gl_shader_program *prog,
-                      const void *mem_ctx, unsigned num_names,
-                      char **varying_names, tfeedback_decl *decls);
-
-bool
-process_xfb_layout_qualifiers(void *mem_ctx, const gl_shader *sh,
-                              unsigned *num_tfeedback_decls,
-                              char ***varying_names);
+link_varyings(struct gl_shader_program *prog, unsigned first, unsigned last,
+              struct gl_context *ctx, void *mem_ctx);
 
 void
-remove_unused_shader_inputs_and_outputs(bool is_separate_shader_object,
-                                        gl_shader *sh,
-                                        enum ir_variable_mode mode);
-
-bool
-store_tfeedback_info(struct gl_context *ctx, struct gl_shader_program *prog,
-                     unsigned num_tfeedback_decls,
-                     tfeedback_decl *tfeedback_decls,
-                     bool has_xfb_qualifiers);
-
-bool
-assign_varying_locations(struct gl_context *ctx,
-                        void *mem_ctx,
-                        struct gl_shader_program *prog,
-                        gl_shader *producer, gl_shader *consumer,
-                         unsigned num_tfeedback_decls,
-                         tfeedback_decl *tfeedback_decls);
-
-bool
-check_against_output_limit(struct gl_context *ctx,
-                           struct gl_shader_program *prog,
-                           gl_shader *producer);
+validate_first_and_last_interface_explicit_locations(struct gl_context *ctx,
+                                                     struct gl_shader_program *prog,
+                                                     gl_shader_stage first,
+                                                     gl_shader_stage last);
 
-bool
-check_against_input_limit(struct gl_context *ctx,
-                          struct gl_shader_program *prog,
-                          gl_shader *consumer);
+void
+cross_validate_outputs_to_inputs(struct gl_context *ctx,
+                                 struct gl_shader_program *prog,
+                                 gl_linked_shader *producer,
+                                 gl_linked_shader *consumer);
 
 #endif /* GLSL_LINK_VARYINGS_H */