Split the program.[ch] files into several new files.

1 files changed, 448 insertions, 0 deletions

diff --git a/src/mesa/shader/prog_parameter.c b/src/mesa/shader/prog_parameter.c
new file mode 100644
index 0000000000..f634e38800
--- /dev/null
+++ b/src/mesa/shader/prog_parameter.c
@@ -0,0 +1,448 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5.2
+ *
+ * Copyright (C) 1999-2006  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"),
+ * 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 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
+ * BRIAN PAUL 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.
+ */
+
+/**
+ * \file prog_parameter.c
+ * Program parameter lists and functions.
+ * \author Brian Paul
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "macros.h"
+#include "mtypes.h"
+#include "program.h"
+#include "prog_instruction.h"
+#include "prog_parameter.h"
+#include "prog_statevars.h"
+
+
+struct gl_program_parameter_list *
+_mesa_new_parameter_list(void)
+{
+   return (struct gl_program_parameter_list *)
+      _mesa_calloc(sizeof(struct gl_program_parameter_list));
+}
+
+
+/**
+ * Free a parameter list and all its parameters
+ */
+void
+_mesa_free_parameter_list(struct gl_program_parameter_list *paramList)
+{
+   GLuint i;
+   for (i = 0; i < paramList->NumParameters; i++) {
+      if (paramList->Parameters[i].Name)
+	 _mesa_free((void *) paramList->Parameters[i].Name);
+   }
+   _mesa_free(paramList->Parameters);
+   if (paramList->ParameterValues)
+      _mesa_align_free(paramList->ParameterValues);
+   _mesa_free(paramList);
+}
+
+
+
+/**
+ * Add a new parameter to a parameter list.
+ * \param paramList  the list to add the parameter to
+ * \param name  the parameter name, will be duplicated/copied!
+ * \param values  initial parameter value, up to 4 GLfloats
+ * \param size  number of elements in 'values' vector (1..4)
+ * \param type  type of parameter, such as 
+ * \return  index of new parameter in the list, or -1 if error (out of mem)
+ */
+GLint
+_mesa_add_parameter(struct gl_program_parameter_list *paramList,
+                    const char *name, const GLfloat values[4], GLuint size,
+                    enum register_file type)
+{
+   const GLuint n = paramList->NumParameters;
+
+   if (n == paramList->Size) {
+      /* Need to grow the parameter list array */
+      if (paramList->Size == 0)
+	 paramList->Size = 8;
+      else
+         paramList->Size *= 2;
+
+      /* realloc arrays */
+      paramList->Parameters = (struct gl_program_parameter *)
+	 _mesa_realloc(paramList->Parameters,
+		       n * sizeof(struct gl_program_parameter),
+		       paramList->Size * sizeof(struct gl_program_parameter));
+
+      paramList->ParameterValues = (GLfloat (*)[4])
+         _mesa_align_realloc(paramList->ParameterValues,         /* old buf */
+                             n * 4 * sizeof(GLfloat),            /* old size */
+                             paramList->Size * 4 *sizeof(GLfloat), /* new sz */
+                             16);
+   }
+
+   if (!paramList->Parameters ||
+       !paramList->ParameterValues) {
+      /* out of memory */
+      paramList->NumParameters = 0;
+      paramList->Size = 0;
+      return -1;
+   }
+   else {
+      paramList->NumParameters = n + 1;
+
+      _mesa_memset(&paramList->Parameters[n], 0, 
+		   sizeof(struct gl_program_parameter));
+
+      paramList->Parameters[n].Name = name ? _mesa_strdup(name) : NULL;
+      paramList->Parameters[n].Type = type;
+      paramList->Parameters[n].Size = size;
+      if (values)
+         COPY_4V(paramList->ParameterValues[n], values);
+      return (GLint) n;
+   }
+}
+
+
+/**
+ * Add a new named program parameter (Ex: NV_fragment_program DEFINE statement)
+ * \return index of the new entry in the parameter list
+ */
+GLint
+_mesa_add_named_parameter(struct gl_program_parameter_list *paramList,
+                          const char *name, const GLfloat values[4])
+{
+   return _mesa_add_parameter(paramList, name, values, 4, PROGRAM_NAMED_PARAM);
+}
+
+
+/**
+ * Add a new named constant to the parameter list.
+ * This will be used when the program contains something like this:
+ *    PARAM myVals = { 0, 1, 2, 3 };
+ *
+ * \param paramList  the parameter list
+ * \param name  the name for the constant
+ * \param values  four float values
+ * \return index/position of the new parameter in the parameter list
+ */
+GLint
+_mesa_add_named_constant(struct gl_program_parameter_list *paramList,
+                         const char *name, const GLfloat values[4],
+                         GLuint size)
+{
+#if 0 /* disable this for now -- we need to save the name! */
+   GLint pos;
+   GLuint swizzle;
+   ASSERT(size == 4); /* XXX future feature */
+   /* check if we already have this constant */
+   if (_mesa_lookup_parameter_constant(paramList, values, 4, &pos, &swizzle)) {
+      return pos;
+   }
+#endif
+   size = 4; /** XXX fix */
+   return _mesa_add_parameter(paramList, name, values, size, PROGRAM_CONSTANT);
+}
+
+
+/**
+ * Add a new unnamed constant to the parameter list.
+ * This will be used when the program contains something like this:
+ *    MOV r, { 0, 1, 2, 3 };
+ *
+ * \param paramList  the parameter list
+ * \param values  four float values
+ * \param swizzleOut  returns swizzle mask for accessing the constant
+ * \return index/position of the new parameter in the parameter list.
+ */
+GLint
+_mesa_add_unnamed_constant(struct gl_program_parameter_list *paramList,
+                           const GLfloat values[4], GLuint size,
+                           GLuint *swizzleOut)
+{
+   GLint pos;
+   GLuint swizzle;
+   ASSERT(size >= 1);
+   ASSERT(size <= 4);
+   size = 4; /* XXX temporary */
+   /* check if we already have this constant */
+   if (_mesa_lookup_parameter_constant(paramList, values,
+                                       size, &pos, &swizzle)) {
+      return pos;
+   }
+   return _mesa_add_parameter(paramList, NULL, values, size, PROGRAM_CONSTANT);
+}
+
+
+GLint
+_mesa_add_uniform(struct gl_program_parameter_list *paramList,
+                  const char *name, GLuint size)
+{
+   GLint i = _mesa_lookup_parameter_index(paramList, -1, name);
+   if (i >= 0 && paramList->Parameters[i].Type == PROGRAM_UNIFORM) {
+      /* already in list */
+      return i;
+   }
+   else {
+      assert(size == 4);
+      i = _mesa_add_parameter(paramList, name, NULL, size, PROGRAM_UNIFORM);
+      return i;
+   }
+}
+
+
+GLint
+_mesa_add_varying(struct gl_program_parameter_list *paramList,
+                  const char *name, GLuint size)
+{
+   GLint i = _mesa_lookup_parameter_index(paramList, -1, name);
+   if (i >= 0 && paramList->Parameters[i].Type == PROGRAM_VARYING) {
+      /* already in list */
+      return i;
+   }
+   else {
+      assert(size == 4);
+      i = _mesa_add_parameter(paramList, name, NULL, size, PROGRAM_VARYING);
+      return i;
+   }
+}
+
+
+
+
+#if 0 /* not used yet */
+/**
+ * Returns the number of 4-component registers needed to store a piece
+ * of GL state.  For matrices this may be as many as 4 registers,
+ * everything else needs
+ * just 1 register.
+ */
+static GLuint
+sizeof_state_reference(const GLint *stateTokens)
+{
+   if (stateTokens[0] == STATE_MATRIX) {
+      GLuint rows = stateTokens[4] - stateTokens[3] + 1;
+      assert(rows >= 1);
+      assert(rows <= 4);
+      return rows;
+   }
+   else {
+      return 1;
+   }
+}
+#endif
+
+
+/**
+ * Add a new state reference to the parameter list.
+ * This will be used when the program contains something like this:
+ *    PARAM ambient = state.material.front.ambient;
+ *
+ * \param paramList  the parameter list
+ * \param state  an array of 6 state tokens
+ * \return index of the new parameter.
+ */
+GLint
+_mesa_add_state_reference(struct gl_program_parameter_list *paramList,
+                          const GLint *stateTokens)
+{
+   const GLuint size = 4; /* XXX fix */
+   const char *name;
+   GLint index;
+
+   /* Check if the state reference is already in the list */
+   for (index = 0; index < paramList->NumParameters; index++) {
+      GLuint i, match = 0;
+      for (i = 0; i < 6; i++) {
+         if (paramList->Parameters[index].StateIndexes[i] == stateTokens[i]) {
+            match++;
+         }
+         else {
+            break;
+         }
+      }
+      if (match == 6) {
+         /* this state reference is already in the parameter list */
+         return index;
+      }
+   }
+
+   name = _mesa_program_state_string(stateTokens);
+   index = _mesa_add_parameter(paramList, name, NULL, size, PROGRAM_STATE_VAR);
+   if (index >= 0) {
+      GLuint i;
+      for (i = 0; i < 6; i++) {
+         paramList->Parameters[index].StateIndexes[i]
+            = (gl_state_index) stateTokens[i];
+      }
+      paramList->StateFlags |= _mesa_program_state_flags(stateTokens);
+   }
+
+   /* free name string here since we duplicated it in add_parameter() */
+   _mesa_free((void *) name);
+
+   return index;
+}
+
+
+/**
+ * Lookup a parameter value by name in the given parameter list.
+ * \return pointer to the float[4] values.
+ */
+GLfloat *
+_mesa_lookup_parameter_value(const struct gl_program_parameter_list *paramList,
+                             GLsizei nameLen, const char *name)
+{
+   GLuint i = _mesa_lookup_parameter_index(paramList, nameLen, name);
+   if (i < 0)
+      return NULL;
+   else
+      return paramList->ParameterValues[i];
+}
+
+
+/**
+ * Given a program parameter name, find its position in the list of parameters.
+ * \param paramList  the parameter list to search
+ * \param nameLen  length of name (in chars).
+ *                 If length is negative, assume that name is null-terminated.
+ * \param name  the name to search for
+ * \return index of parameter in the list.
+ */
+GLint
+_mesa_lookup_parameter_index(const struct gl_program_parameter_list *paramList,
+                             GLsizei nameLen, const char *name)
+{
+   GLint i;
+
+   if (!paramList)
+      return -1;
+
+   if (nameLen == -1) {
+      /* name is null-terminated */
+      for (i = 0; i < (GLint) paramList->NumParameters; i++) {
+         if (paramList->Parameters[i].Name &&
+	     _mesa_strcmp(paramList->Parameters[i].Name, name) == 0)
+            return i;
+      }
+   }
+   else {
+      /* name is not null-terminated, use nameLen */
+      for (i = 0; i < (GLint) paramList->NumParameters; i++) {
+         if (paramList->Parameters[i].Name &&
+	     _mesa_strncmp(paramList->Parameters[i].Name, name, nameLen) == 0
+             && _mesa_strlen(paramList->Parameters[i].Name) == (size_t)nameLen)
+            return i;
+      }
+   }
+   return -1;
+}
+
+
+/**
+ * Look for a float vector in the given parameter list.  The float vector
+ * may be of length 1, 2, 3 or 4.
+ * \param paramList  the parameter list to search
+ * \param v  the float vector to search for
+ * \param size  number of element in v
+ * \param posOut  returns the position of the constant, if found
+ * \param swizzleOut  returns a swizzle mask describing location of the
+ *                    vector elements if found
+ * \return GL_TRUE if found, GL_FALSE if not found
+ */
+GLboolean
+_mesa_lookup_parameter_constant(const struct gl_program_parameter_list *paramList,
+                                const GLfloat v[], GLsizei vSize,
+                                GLint *posOut, GLuint *swizzleOut)
+{
+   GLuint i;
+
+   assert(vSize >= 1);
+   assert(vSize <= 4);
+
+   if (!paramList)
+      return -1;
+
+   for (i = 0; i < paramList->NumParameters; i++) {
+      if (paramList->Parameters[i].Type == PROGRAM_CONSTANT) {
+         const GLint maxShift = 4 - vSize;
+         GLint shift, j;
+         for (shift = 0; shift <= maxShift; shift++) {
+            GLint matched = 0;
+            GLuint swizzle[4];
+            swizzle[0] = swizzle[1] = swizzle[2] = swizzle[3] = 0;
+            /* XXX we could do out-of-order swizzle matches too, someday */
+            for (j = 0; j < vSize; j++) {
+               assert(shift + j < 4);
+               if (paramList->ParameterValues[i][shift + j] == v[j]) {
+                  matched++;
+                  swizzle[j] = shift + j;
+                  ASSERT(swizzle[j] >= SWIZZLE_X);
+                  ASSERT(swizzle[j] <= SWIZZLE_W);
+               }
+            }
+            if (matched == vSize) {
+               /* found! */
+               *posOut = i;
+               *swizzleOut = MAKE_SWIZZLE4(swizzle[0], swizzle[1],
+                                           swizzle[2], swizzle[3]);
+               return GL_TRUE;
+            }
+         }
+      }
+   }
+
+   *posOut = -1;
+   return GL_FALSE;
+}
+
+
+struct gl_program_parameter_list *
+_mesa_clone_parameter_list(const struct gl_program_parameter_list *list)
+{
+   struct gl_program_parameter_list *clone;
+   GLuint i;
+
+   clone = _mesa_new_parameter_list();
+   if (!clone)
+      return NULL;
+
+   /** Not too efficient, but correct */
+   for (i = 0; i < list->NumParameters; i++) {
+      struct gl_program_parameter *p = list->Parameters + i;
+      GLint j = _mesa_add_parameter(clone, p->Name, list->ParameterValues[i],
+                                    p->Size, p->Type);
+      ASSERT(j >= 0);
+      /* copy state indexes */
+      if (p->Type == PROGRAM_STATE_VAR) {
+         GLint k;
+         struct gl_program_parameter *q = clone->Parameters + j;
+         for (k = 0; k < 6; k++) {
+            q->StateIndexes[k] = p->StateIndexes[k];
+         }
+      }
+   }
+
+   return clone;
+}