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-rw-r--r--mesalib/src/mesa/shader/prog_parameter.c750
1 files changed, 750 insertions, 0 deletions
diff --git a/mesalib/src/mesa/shader/prog_parameter.c b/mesalib/src/mesa/shader/prog_parameter.c
new file mode 100644
index 000000000..2f029b02e
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+++ b/mesalib/src/mesa/shader/prog_parameter.c
@@ -0,0 +1,750 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.3
+ *
+ * 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"),
+ * 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 "main/glheader.h"
+#include "main/imports.h"
+#include "main/macros.h"
+#include "prog_instruction.h"
+#include "prog_parameter.h"
+#include "prog_statevars.h"
+
+
+struct gl_program_parameter_list *
+_mesa_new_parameter_list(void)
+{
+ return CALLOC_STRUCT(gl_program_parameter_list);
+}
+
+
+struct gl_program_parameter_list *
+_mesa_new_parameter_list_sized(unsigned size)
+{
+ struct gl_program_parameter_list *p = _mesa_new_parameter_list();
+
+ if ((p != NULL) && (size != 0)) {
+ p->Size = size;
+
+ /* alloc arrays */
+ p->Parameters = (struct gl_program_parameter *)
+ _mesa_calloc(size * sizeof(struct gl_program_parameter));
+
+ p->ParameterValues = (GLfloat (*)[4])
+ _mesa_align_malloc(size * 4 *sizeof(GLfloat), 16);
+
+
+ if ((p->Parameters == NULL) || (p->ParameterValues == NULL)) {
+ _mesa_free(p->Parameters);
+ _mesa_align_free(p->ParameterValues);
+ _mesa_free(p);
+ p = NULL;
+ }
+ }
+
+ return p;
+}
+
+
+/**
+ * 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.
+ * Note that parameter values are usually 4-element GLfloat vectors.
+ * When size > 4 we'll allocate a sequential block of parameters to
+ * store all the values (in blocks of 4).
+ *
+ * \param paramList the list to add the parameter to
+ * \param type type of parameter, such as
+ * \param name the parameter name, will be duplicated/copied!
+ * \param size number of elements in 'values' vector (1..4, or more)
+ * \param datatype GL_FLOAT, GL_FLOAT_VECx, GL_INT, GL_INT_VECx or GL_NONE.
+ * \param values initial parameter value, up to 4 GLfloats, or NULL
+ * \param state state indexes, or NULL
+ * \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,
+ gl_register_file type, const char *name,
+ GLuint size, GLenum datatype, const GLfloat *values,
+ 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 */
+
+ assert(size > 0);
+
+ if (oldNum + sz4 > paramList->Size) {
+ /* Need to grow the parameter list array (alloc some extra) */
+ paramList->Size = paramList->Size + 4 * sz4;
+
+ /* realloc arrays */
+ paramList->Parameters = (struct gl_program_parameter *)
+ _mesa_realloc(paramList->Parameters,
+ oldNum * sizeof(struct gl_program_parameter),
+ paramList->Size * sizeof(struct gl_program_parameter));
+
+ paramList->ParameterValues = (GLfloat (*)[4])
+ _mesa_align_realloc(paramList->ParameterValues, /* old buf */
+ oldNum * 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 {
+ GLuint i;
+
+ paramList->NumParameters = oldNum + sz4;
+
+ _mesa_memset(&paramList->Parameters[oldNum], 0,
+ sz4 * sizeof(struct gl_program_parameter));
+
+ for (i = 0; i < sz4; i++) {
+ struct gl_program_parameter *p = paramList->Parameters + oldNum + i;
+ p->Name = name ? _mesa_strdup(name) : NULL;
+ p->Type = type;
+ p->Size = size;
+ p->DataType = datatype;
+ p->Flags = flags;
+ if (values) {
+ COPY_4V(paramList->ParameterValues[oldNum + i], values);
+ values += 4;
+ p->Initialized = GL_TRUE;
+ }
+ else {
+ /* silence valgrind */
+ ASSIGN_4V(paramList->ParameterValues[oldNum + i], 0, 0, 0, 0);
+ }
+ size -= 4;
+ }
+
+ if (state) {
+ for (i = 0; i < STATE_LENGTH; i++)
+ paramList->Parameters[oldNum].StateIndexes[i] = state[i];
+ }
+
+ return (GLint) oldNum;
+ }
+}
+
+
+/**
+ * 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, PROGRAM_NAMED_PARAM, name,
+ 4, GL_NONE, values, NULL, 0x0);
+
+}
+
+
+/**
+ * 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)
+{
+ /* first check if this is a duplicate constant */
+ GLint pos;
+ for (pos = 0; pos < paramList->NumParameters; pos++) {
+ const GLfloat *pvals = paramList->ParameterValues[pos];
+ if (pvals[0] == values[0] &&
+ pvals[1] == values[1] &&
+ pvals[2] == values[2] &&
+ pvals[3] == values[3] &&
+ _mesa_strcmp(paramList->Parameters[pos].Name, name) == 0) {
+ /* Same name and value is already in the param list - reuse it */
+ return pos;
+ }
+ }
+ /* not found, add new parameter */
+ return _mesa_add_parameter(paramList, PROGRAM_CONSTANT, name,
+ size, GL_NONE, values, NULL, 0x0);
+}
+
+
+/**
+ * Add a new unnamed constant to the parameter list. This will be used
+ * when a fragment/vertex program contains something like this:
+ * MOV r, { 0, 1, 2, 3 };
+ * We'll search the parameter list for an existing instance of the
+ * constant. If swizzleOut is non-null, we'll try swizzling when
+ * looking for a match.
+ *
+ * \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;
+ ASSERT(size >= 1);
+ ASSERT(size <= 4);
+
+ if (_mesa_lookup_parameter_constant(paramList, values,
+ size, &pos, swizzleOut)) {
+ return pos;
+ }
+
+ /* Look for empty space in an already unnamed constant parameter
+ * to add this constant. This will only work for single-element
+ * constants because we rely on smearing (i.e. .yyyy or .zzzz).
+ */
+ if (size == 1 && swizzleOut) {
+ for (pos = 0; pos < (GLint) paramList->NumParameters; pos++) {
+ struct gl_program_parameter *p = paramList->Parameters + pos;
+ if (p->Type == PROGRAM_CONSTANT && p->Size + size <= 4) {
+ /* ok, found room */
+ GLfloat *pVal = paramList->ParameterValues[pos];
+ GLuint swz = p->Size; /* 1, 2 or 3 for Y, Z, W */
+ pVal[p->Size] = values[0];
+ p->Size++;
+ *swizzleOut = MAKE_SWIZZLE4(swz, swz, swz, swz);
+ return pos;
+ }
+ }
+ }
+
+ /* add a new parameter to store this constant */
+ pos = _mesa_add_parameter(paramList, PROGRAM_CONSTANT, NULL,
+ size, GL_NONE, values, NULL, 0x0);
+ if (pos >= 0 && swizzleOut) {
+ if (size == 1)
+ *swizzleOut = SWIZZLE_XXXX;
+ else
+ *swizzleOut = SWIZZLE_NOOP;
+ }
+ return pos;
+}
+
+
+/**
+ * Add a uniform to the parameter list.
+ * Note that if the uniform is an array, size may be greater than
+ * what's implied by the datatype.
+ * \param name uniform's name
+ * \param size number of floats to allocate
+ * \param datatype GL_FLOAT_VEC3, GL_FLOAT_MAT4, etc.
+ */
+GLint
+_mesa_add_uniform(struct gl_program_parameter_list *paramList,
+ const char *name, GLuint size, GLenum datatype,
+ const GLfloat *values)
+{
+ GLint i = _mesa_lookup_parameter_index(paramList, -1, name);
+ ASSERT(datatype != GL_NONE);
+ if (i >= 0 && paramList->Parameters[i].Type == PROGRAM_UNIFORM) {
+ ASSERT(paramList->Parameters[i].Size == size);
+ ASSERT(paramList->Parameters[i].DataType == datatype);
+ /* already in list */
+ return i;
+ }
+ else {
+ i = _mesa_add_parameter(paramList, PROGRAM_UNIFORM, name,
+ size, datatype, values, NULL, 0x0);
+ return i;
+ }
+}
+
+
+/**
+ * Mark the named uniform as 'used'.
+ */
+void
+_mesa_use_uniform(struct gl_program_parameter_list *paramList,
+ const char *name)
+{
+ GLuint i;
+ for (i = 0; i < paramList->NumParameters; i++) {
+ struct gl_program_parameter *p = paramList->Parameters + i;
+ if ((p->Type == PROGRAM_UNIFORM || p->Type == PROGRAM_SAMPLER) &&
+ _mesa_strcmp(p->Name, name) == 0) {
+ p->Used = GL_TRUE;
+ /* Note that large uniforms may occupy several slots so we're
+ * not done searching yet.
+ */
+ }
+ }
+}
+
+
+/**
+ * Add a sampler to the parameter list.
+ * \param name uniform's name
+ * \param datatype GL_SAMPLER_2D, GL_SAMPLER_2D_RECT_ARB, etc.
+ * \param index the sampler number (as seen in TEX instructions)
+ * \return sampler index (starting at zero) or -1 if error
+ */
+GLint
+_mesa_add_sampler(struct gl_program_parameter_list *paramList,
+ const char *name, GLenum datatype)
+{
+ GLint i = _mesa_lookup_parameter_index(paramList, -1, name);
+ if (i >= 0 && paramList->Parameters[i].Type == PROGRAM_SAMPLER) {
+ ASSERT(paramList->Parameters[i].Size == 1);
+ ASSERT(paramList->Parameters[i].DataType == datatype);
+ /* already in list */
+ return (GLint) paramList->ParameterValues[i][0];
+ }
+ else {
+ GLuint i;
+ const GLint size = 1; /* a sampler is basically a texture unit number */
+ GLfloat value[4];
+ GLint numSamplers = 0;
+ for (i = 0; i < paramList->NumParameters; i++) {
+ if (paramList->Parameters[i].Type == PROGRAM_SAMPLER)
+ numSamplers++;
+ }
+ value[0] = (GLfloat) numSamplers;
+ value[1] = value[2] = value[3] = 0.0F;
+ (void) _mesa_add_parameter(paramList, PROGRAM_SAMPLER, name,
+ size, datatype, value, NULL, 0x0);
+ return numSamplers;
+ }
+}
+
+
+/**
+ * Add parameter representing a varying variable.
+ */
+GLint
+_mesa_add_varying(struct gl_program_parameter_list *paramList,
+ 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) {
+ /* already in list */
+ return i;
+ }
+ else {
+ /*assert(size == 4);*/
+ i = _mesa_add_parameter(paramList, PROGRAM_VARYING, name,
+ size, GL_NONE, NULL, NULL, flags);
+ return i;
+ }
+}
+
+
+/**
+ * Add parameter representing a vertex program attribute.
+ * \param size size of attribute (in floats), may be -1 if unknown
+ * \param attrib the attribute index, or -1 if unknown
+ */
+GLint
+_mesa_add_attribute(struct gl_program_parameter_list *paramList,
+ const char *name, GLint size, GLenum datatype, GLint attrib)
+{
+ GLint i = _mesa_lookup_parameter_index(paramList, -1, name);
+ if (i >= 0) {
+ /* replace */
+ if (attrib < 0)
+ attrib = i;
+ paramList->Parameters[i].StateIndexes[0] = attrib;
+ }
+ else {
+ /* add */
+ gl_state_index state[STATE_LENGTH];
+ state[0] = (gl_state_index) attrib;
+ if (size < 0)
+ size = 4;
+ i = _mesa_add_parameter(paramList, PROGRAM_INPUT, name,
+ size, datatype, NULL, state, 0x0);
+ }
+ 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 stateTokens an array of 5 (STATE_LENGTH) state tokens
+ * \return index of the new parameter.
+ */
+GLint
+_mesa_add_state_reference(struct gl_program_parameter_list *paramList,
+ const gl_state_index stateTokens[STATE_LENGTH])
+{
+ const GLuint size = 4; /* XXX fix */
+ char *name;
+ GLint index;
+
+ /* Check if the state reference is already in the list */
+ for (index = 0; index < (GLint) paramList->NumParameters; index++) {
+ GLuint i, match = 0;
+ for (i = 0; i < STATE_LENGTH; i++) {
+ if (paramList->Parameters[index].StateIndexes[i] == stateTokens[i]) {
+ match++;
+ }
+ else {
+ break;
+ }
+ }
+ if (match == STATE_LENGTH) {
+ /* this state reference is already in the parameter list */
+ return index;
+ }
+ }
+
+ name = _mesa_program_state_string(stateTokens);
+ index = _mesa_add_parameter(paramList, PROGRAM_STATE_VAR, name,
+ size, GL_NONE,
+ NULL, (gl_state_index *) stateTokens, 0x0);
+ paramList->StateFlags |= _mesa_program_state_flags(stateTokens);
+
+ /* free name string here since we duplicated it in add_parameter() */
+ _mesa_free(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. If swizzleOut is non-null, we'll try
+ * swizzling to find a match.
+ * \param list the parameter list to search
+ * \param v the float vector to search for
+ * \param vSize 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 *list,
+ const GLfloat v[], GLuint vSize,
+ GLint *posOut, GLuint *swizzleOut)
+{
+ GLuint i;
+
+ assert(vSize >= 1);
+ assert(vSize <= 4);
+
+ if (!list)
+ return -1;
+
+ for (i = 0; i < list->NumParameters; i++) {
+ if (list->Parameters[i].Type == PROGRAM_CONSTANT) {
+ if (!swizzleOut) {
+ /* swizzle not allowed */
+ GLuint j, match = 0;
+ for (j = 0; j < vSize; j++) {
+ if (v[j] == list->ParameterValues[i][j])
+ match++;
+ }
+ if (match == vSize) {
+ *posOut = i;
+ return GL_TRUE;
+ }
+ }
+ else {
+ /* try matching w/ swizzle */
+ if (vSize == 1) {
+ /* look for v[0] anywhere within float[4] value */
+ GLuint j;
+ for (j = 0; j < 4; j++) {
+ if (list->ParameterValues[i][j] == v[0]) {
+ /* found it */
+ *posOut = i;
+ *swizzleOut = MAKE_SWIZZLE4(j, j, j, j);
+ return GL_TRUE;
+ }
+ }
+ }
+ else if (vSize <= list->Parameters[i].Size) {
+ /* see if we can match this constant (with a swizzle) */
+ GLuint swz[4];
+ GLuint match = 0, j, k;
+ for (j = 0; j < vSize; j++) {
+ if (v[j] == list->ParameterValues[i][j]) {
+ swz[j] = j;
+ match++;
+ }
+ else {
+ for (k = 0; k < list->Parameters[i].Size; k++) {
+ if (v[j] == list->ParameterValues[i][k]) {
+ swz[j] = k;
+ match++;
+ break;
+ }
+ }
+ }
+ }
+ /* smear last value to remaining positions */
+ for (; j < 4; j++)
+ swz[j] = swz[j-1];
+
+ if (match == vSize) {
+ *posOut = i;
+ *swizzleOut = MAKE_SWIZZLE4(swz[0], swz[1], swz[2], swz[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;
+ 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, 0x0);
+ ASSERT(j >= 0);
+ pCopy = clone->Parameters + j;
+ pCopy->Used = p->Used;
+ pCopy->Flags = p->Flags;
+ /* copy state indexes */
+ if (p->Type == PROGRAM_STATE_VAR) {
+ GLint k;
+ for (k = 0; k < STATE_LENGTH; k++) {
+ pCopy->StateIndexes[k] = p->StateIndexes[k];
+ }
+ }
+ else {
+ clone->Parameters[j].Size = p->Size;
+ }
+
+ }
+
+ clone->StateFlags = list->StateFlags;
+
+ return clone;
+}
+
+
+/**
+ * Return a new parameter list which is listA + listB.
+ */
+struct gl_program_parameter_list *
+_mesa_combine_parameter_lists(const struct gl_program_parameter_list *listA,
+ const struct gl_program_parameter_list *listB)
+{
+ struct gl_program_parameter_list *list;
+
+ if (listA) {
+ list = _mesa_clone_parameter_list(listA);
+ if (list && listB) {
+ GLuint i;
+ for (i = 0; i < listB->NumParameters; i++) {
+ struct gl_program_parameter *param = listB->Parameters + i;
+ _mesa_add_parameter(list, param->Type, param->Name, param->Size,
+ param->DataType,
+ listB->ParameterValues[i],
+ param->StateIndexes,
+ param->Flags);
+ }
+ }
+ }
+ else if (listB) {
+ list = _mesa_clone_parameter_list(listB);
+ }
+ else {
+ list = NULL;
+ }
+ return list;
+}
+
+
+
+/**
+ * Find longest name of all uniform parameters in list.
+ */
+GLuint
+_mesa_longest_parameter_name(const struct gl_program_parameter_list *list,
+ gl_register_file type)
+{
+ GLuint i, maxLen = 0;
+ if (!list)
+ return 0;
+ for (i = 0; i < list->NumParameters; i++) {
+ if (list->Parameters[i].Type == type) {
+ GLuint len = _mesa_strlen(list->Parameters[i].Name);
+ if (len > maxLen)
+ maxLen = len;
+ }
+ }
+ return maxLen;
+}
+
+
+/**
+ * Count the number of parameters in the last that match the given type.
+ */
+GLuint
+_mesa_num_parameters_of_type(const struct gl_program_parameter_list *list,
+ gl_register_file type)
+{
+ GLuint i, count = 0;
+ if (list) {
+ for (i = 0; i < list->NumParameters; i++) {
+ if (list->Parameters[i].Type == type)
+ count++;
+ }
+ }
+ return count;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 18:45:31 +0000