mesa: add Flags field to gl_program_parameter

Only one flag defined so far: PROG_PARAM_CENTROID_BIT

(cherry picked from commit 0f228d7ab3b7c03328df369b8db50c469ac5dcd6)

4 files changed, 38 insertions, 24 deletions

diff --git a/src/mesa/shader/prog_parameter.c b/src/mesa/shader/prog_parameter.c
index e1729c7bff..5d8f3a5330 100644
--- a/src/mesa/shader/prog_parameter.c
+++ b/src/mesa/shader/prog_parameter.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.3
+ * Version:  7.3
  *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -80,7 +80,8 @@ GLint
 _mesa_add_parameter(struct gl_program_parameter_list *paramList,
                     enum register_file type, const char *name,
                     GLuint size, GLenum datatype, const GLfloat *values,
-                    const gl_state_index state[STATE_LENGTH])
+                    const gl_state_index state[STATE_LENGTH],
+                    GLbitfield flags)
 {
    const GLuint oldNum = paramList->NumParameters;
    const GLuint sz4 = (size + 3) / 4; /* no. of new param slots needed */
@@ -125,6 +126,7 @@ _mesa_add_parameter(struct gl_program_parameter_list *paramList,
          p->Type = type;
          p->Size = size;
          p->DataType = datatype;
+         p->Flags = flags;
          if (values) {
             COPY_4V(paramList->ParameterValues[oldNum + i], values);
             values += 4;
@@ -156,7 +158,7 @@ _mesa_add_named_parameter(struct gl_program_parameter_list *paramList,
                           const char *name, const GLfloat values[4])
 {
    return _mesa_add_parameter(paramList, PROGRAM_NAMED_PARAM, name,
-                              4, GL_NONE, values, NULL);
+                              4, GL_NONE, values, NULL, 0x0);
                               
 }
 
@@ -187,7 +189,7 @@ _mesa_add_named_constant(struct gl_program_parameter_list *paramList,
 #endif
    size = 4; /** XXX fix */
    return _mesa_add_parameter(paramList, PROGRAM_CONSTANT, name,
-                              size, GL_NONE, values, NULL);
+                              size, GL_NONE, values, NULL, 0x0);
 }
 
 
@@ -239,7 +241,7 @@ _mesa_add_unnamed_constant(struct gl_program_parameter_list *paramList,
 
    /* add a new parameter to store this constant */
    pos = _mesa_add_parameter(paramList, PROGRAM_CONSTANT, NULL,
-                             size, GL_NONE, values, NULL);
+                             size, GL_NONE, values, NULL, 0x0);
    if (pos >= 0 && swizzleOut) {
       if (size == 1)
          *swizzleOut = SWIZZLE_XXXX;
@@ -273,7 +275,7 @@ _mesa_add_uniform(struct gl_program_parameter_list *paramList,
    }
    else {
       i = _mesa_add_parameter(paramList, PROGRAM_UNIFORM, name,
-                              size, datatype, values, NULL);
+                              size, datatype, values, NULL, 0x0);
       return i;
    }
 }
@@ -328,7 +330,7 @@ _mesa_add_sampler(struct gl_program_parameter_list *paramList,
       }
       value = (GLfloat) numSamplers;
       (void) _mesa_add_parameter(paramList, PROGRAM_SAMPLER, name,
-                                 size, datatype, &value, NULL);
+                                 size, datatype, &value, NULL, 0x0);
       return numSamplers;
    }
 }
@@ -339,7 +341,7 @@ _mesa_add_sampler(struct gl_program_parameter_list *paramList,
  */
 GLint
 _mesa_add_varying(struct gl_program_parameter_list *paramList,
-                  const char *name, GLuint size)
+                  const char *name, GLuint size, GLbitfield flags)
 {
    GLint i = _mesa_lookup_parameter_index(paramList, -1, name);
    if (i >= 0 && paramList->Parameters[i].Type == PROGRAM_VARYING) {
@@ -349,7 +351,7 @@ _mesa_add_varying(struct gl_program_parameter_list *paramList,
    else {
       /*assert(size == 4);*/
       i = _mesa_add_parameter(paramList, PROGRAM_VARYING, name,
-                              size, GL_NONE, NULL, NULL);
+                              size, GL_NONE, NULL, NULL, flags);
       return i;
    }
 }
@@ -378,7 +380,7 @@ _mesa_add_attribute(struct gl_program_parameter_list *paramList,
       if (size < 0)
          size = 4;
       i = _mesa_add_parameter(paramList, PROGRAM_INPUT, name,
-                              size, datatype, NULL, state);
+                              size, datatype, NULL, state, 0x0);
    }
    return i;
 }
@@ -445,7 +447,7 @@ _mesa_add_state_reference(struct gl_program_parameter_list *paramList,
    name = _mesa_program_state_string(stateTokens);
    index = _mesa_add_parameter(paramList, PROGRAM_STATE_VAR, name,
                                size, GL_NONE,
-                               NULL, (gl_state_index *) stateTokens);
+                               NULL, (gl_state_index *) stateTokens, 0x0);
    paramList->StateFlags |= _mesa_program_state_flags(stateTokens);
 
    /* free name string here since we duplicated it in add_parameter() */
@@ -616,7 +618,7 @@ _mesa_clone_parameter_list(const struct gl_program_parameter_list *list)
       struct gl_program_parameter *pCopy;
       GLuint size = MIN2(p->Size, 4);
       GLint j = _mesa_add_parameter(clone, p->Type, p->Name, size, p->DataType,
-                                    list->ParameterValues[i], NULL);
+                                    list->ParameterValues[i], NULL, 0x0);
       ASSERT(j >= 0);
       pCopy = clone->Parameters + j;
       pCopy->Used = p->Used;
@@ -657,7 +659,8 @@ _mesa_combine_parameter_lists(const struct gl_program_parameter_list *listA,
             _mesa_add_parameter(list, param->Type, param->Name, param->Size,
                                 param->DataType,
                                 listB->ParameterValues[i],
-                                param->StateIndexes);
+                                param->StateIndexes,
+                                param->Flags);
          }
       }
    }
diff --git a/src/mesa/shader/prog_parameter.h b/src/mesa/shader/prog_parameter.h
index 0c35198de7..829fd25d55 100644
--- a/src/mesa/shader/prog_parameter.h
+++ b/src/mesa/shader/prog_parameter.h
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.3
+ * Version:  7.3
  *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -36,11 +36,17 @@
 
 
 /**
+ * Program parameter flags
+ */
+/*@{*/
+#define PROG_PARAM_CENTROID_BIT  0x1
+/*@}*/
+
+
+
+/**
  * Program parameter.
- * Used for NV_fragment_program for "DEFINE"d constants and "DECLARE"d
- * parameters.
- * Also used by ARB_vertex/fragment_programs for state variables, etc.
- * Used by shaders for uniforms, constants, varying vars, etc.
+ * Used by shaders/programs for uniforms, constants, varying vars, etc.
  */
 struct gl_program_parameter
 {
@@ -50,6 +56,7 @@ struct gl_program_parameter
    GLuint Size;             /**< Number of components (1..4) */
    GLboolean Used;          /**< Helper flag for GLSL uniform tracking */
    GLboolean Initialized;   /**< Has the ParameterValue[] been set? */
+   GLbitfield Flags;        /**< Bitmask of PROG_PARAM_*_BIT */
    /**
     * A sequence of STATE_* tokens and integers to identify GL state.
     */
@@ -94,7 +101,8 @@ extern GLint
 _mesa_add_parameter(struct gl_program_parameter_list *paramList,
                     enum register_file type, const char *name,
                     GLuint size, GLenum datatype, const GLfloat *values,
-                    const gl_state_index state[STATE_LENGTH]);
+                    const gl_state_index state[STATE_LENGTH],
+                    GLbitfield flags);
 
 extern GLint
 _mesa_add_named_parameter(struct gl_program_parameter_list *paramList,
@@ -125,7 +133,7 @@ _mesa_add_sampler(struct gl_program_parameter_list *paramList,
 
 extern GLint
 _mesa_add_varying(struct gl_program_parameter_list *paramList,
-                  const char *name, GLuint size);
+                  const char *name, GLuint size, GLbitfield flags);
 
 extern GLint
 _mesa_add_attribute(struct gl_program_parameter_list *paramList,
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index fa653055f3..0f004c813e 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -3776,7 +3776,9 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
 
       if (prog) {
          /* user-defined varying */
-         GLint varyingLoc = _mesa_add_varying(prog->Varying, varName, totalSize);
+         GLbitfield flags = 0x0;
+         GLint varyingLoc = _mesa_add_varying(prog->Varying, varName,
+                                              totalSize, flags);
          GLuint swizzle = _slang_var_swizzle(size, 0);
          store = _slang_new_ir_storage_swz(PROGRAM_VARYING, varyingLoc,
                                            totalSize, swizzle);
diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index 79fd9a064f..fcd7fbf3ca 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -103,7 +103,8 @@ link_varying_vars(struct gl_shader_program *shProg, struct gl_program *prog)
       }
       else {
          /* not already in linked list */
-         j = _mesa_add_varying(shProg->Varying, var->Name, var->Size);
+         j = _mesa_add_varying(shProg->Varying, var->Name, var->Size,
+                               var->Flags);
       }
 
       /* map varying[i] to varying[j].