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;
GLuint size = MIN2(p->Size, 4);
GLint j = _mesa_add_parameter(clone, p->Type, p->Name, size, p->DataType,
list->ParameterValues[i], NULL);
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 < STATE_LENGTH; k++) {
q->StateIndexes[k] = p->StateIndexes[k];
}
}
else {
clone->Parameters[j].Size = p->Size;
}
}
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);
}
}
}
else if (listB) {
list = _mesa_clone_parameter_list(listB);
}
else {
list = NULL;
}
return list;
}
/**
* 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++) {
if (!memcmp(paramList->Parameters[index].StateIndexes,
stateTokens, STATE_LENGTH * sizeof(gl_state_index))) {
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);
paramList->StateFlags |= _mesa_program_state_flags(stateTokens);
/* free name string here since we duplicated it in add_parameter() */
free(name);
return index;
}
/**
* 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;
}
}
GLint
_mesa_add_sized_state_reference(struct gl_program_parameter_list *paramList,
const gl_state_index16 stateTokens[STATE_LENGTH],
const unsigned size, bool pad_and_align)
{
char *name;
GLint index;
/* Check if the state reference is already in the list */
for (index = 0; index < (GLint) paramList->NumParameters; index++) {
if (!memcmp(paramList->Parameters[index].StateIndexes,
stateTokens,
sizeof(paramList->Parameters[index].StateIndexes))) {
return index;
}
}
name = _mesa_program_state_string(stateTokens);
index = _mesa_add_parameter(paramList, PROGRAM_STATE_VAR, name,
size, GL_NONE, NULL, stateTokens,
pad_and_align);
paramList->StateFlags |= _mesa_program_state_flags(stateTokens);
/* free name string here since we duplicated it in add_parameter() */
free(name);
return index;
}
/**
* 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);
}
/**
* Add parameter representing a varying variable.
*/
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, PROGRAM_VARYING, name,
size, GL_NONE, NULL, NULL);
return i;
}
}
/**
* 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 };
* If swizzleOut is non-null we'll search the parameter list for an
* existing instance of the constant which matches with a swizzle.
*
* \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_typed_unnamed_constant(struct gl_program_parameter_list *paramList,
const gl_constant_value values[4], GLuint size,
GLenum datatype, GLuint *swizzleOut)
{
GLint pos;
ASSERT(size >= 1);
ASSERT(size <= 4);
if (swizzleOut &&
_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 */
gl_constant_value *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, datatype, values, NULL);
if (pos >= 0 && swizzleOut) {
if (size == 1)
*swizzleOut = SWIZZLE_XXXX;
else
*swizzleOut = SWIZZLE_NOOP;
}
return pos;
}
/**
* Add a sampler to the parameter list.
* \param name uniform's name
* \param datatype GL_SAMPLER_2D, GL_SAMPLER_2D_RECT_ARB, etc.
*/
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 i;
}
else {
const GLint size = 1; /* a sampler is basically a texture unit number */
i = _mesa_add_parameter(paramList, PROGRAM_SAMPLER, name,
size, datatype, NULL, NULL);
return i;
}
}
/**
* 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)
{
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, NULL, NULL);
return i;
}
}
/**
* 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, PROGRAM_CONSTANT, name,
size, GL_NONE, values, NULL);
}
/**
* 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, 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, GL_NONE, NULL, state);
}
return i;
}
/**
* 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 gl_constant_value values[4],
GLuint size)
{
/* first check if this is a duplicate constant */
GLint pos;
for (pos = 0; pos < (GLint)paramList->NumParameters; pos++) {
const gl_constant_value *pvals = paramList->ParameterValues[pos];
if (pvals[0].u == values[0].u &&
pvals[1].u == values[1].u &&
pvals[2].u == values[2].u &&
pvals[3].u == values[3].u &&
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);
}
/**
* 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 */
const 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);
paramList->StateFlags |= _mesa_program_state_flags(stateTokens);
/* free name string here since we duplicated it in add_parameter() */
_mesa_free((void *) name);
return index;
}
/**
* Called in ProgramStringNotify, we need to fill the metadata of the
* gl_program attached to the ati_fragment_shader
*/
void
st_init_atifs_prog(struct gl_context *ctx, struct gl_program *prog)
{
/* we know this is st_fragment_program, because of st_new_ati_fs() */
struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
struct ati_fragment_shader *atifs = stfp->ati_fs;
unsigned pass, i, r, optype, arg;
static const gl_state_index fog_params_state[STATE_LENGTH] =
{STATE_INTERNAL, STATE_FOG_PARAMS_OPTIMIZED, 0, 0, 0};
static const gl_state_index fog_color[STATE_LENGTH] =
{STATE_FOG_COLOR, 0, 0, 0, 0};
prog->InputsRead = 0;
prog->OutputsWritten = BITFIELD64_BIT(FRAG_RESULT_COLOR);
prog->SamplersUsed = 0;
prog->Parameters = _mesa_new_parameter_list();
/* fill in InputsRead, SamplersUsed, TexturesUsed */
for (pass = 0; pass < atifs->NumPasses; pass++) {
for (r = 0; r < MAX_NUM_FRAGMENT_REGISTERS_ATI; r++) {
struct atifs_setupinst *texinst = &atifs->SetupInst[pass][r];
GLuint pass_tex = texinst->src;
if (texinst->Opcode == ATI_FRAGMENT_SHADER_SAMPLE_OP) {
/* mark which texcoords are used */
prog->InputsRead |= BITFIELD64_BIT(VARYING_SLOT_TEX0 + pass_tex - GL_TEXTURE0_ARB);
/* by default there is 1:1 mapping between samplers and textures */
prog->SamplersUsed |= (1 << r);
/* the target is unknown here, it will be fixed in the draw call */
prog->TexturesUsed[r] = TEXTURE_2D_BIT;
} else if (texinst->Opcode == ATI_FRAGMENT_SHADER_PASS_OP) {
if (pass_tex >= GL_TEXTURE0_ARB && pass_tex <= GL_TEXTURE7_ARB) {
prog->InputsRead |= BITFIELD64_BIT(VARYING_SLOT_TEX0 + pass_tex - GL_TEXTURE0_ARB);
}
}
}
}
for (pass = 0; pass < atifs->NumPasses; pass++) {
for (i = 0; i < atifs->numArithInstr[pass]; i++) {
struct atifs_instruction *inst = &atifs->Instructions[pass][i];
for (optype = 0; optype < 2; optype++) { /* color, alpha */
if (inst->Opcode[optype]) {
for (arg = 0; arg < inst->ArgCount[optype]; arg++) {
GLint index = inst->SrcReg[optype][arg].Index;
if (index == GL_PRIMARY_COLOR_EXT) {
prog->InputsRead |= BITFIELD64_BIT(VARYING_SLOT_COL0);
} else if (index == GL_SECONDARY_INTERPOLATOR_ATI) {
/* note: ATI_fragment_shader.txt never specifies what
* GL_SECONDARY_INTERPOLATOR_ATI is, swrast uses
* VARYING_SLOT_COL1 for this input */
prog->InputsRead |= BITFIELD64_BIT(VARYING_SLOT_COL1);
}
}
}
}
}
}
/* we may need fog */
prog->InputsRead |= BITFIELD64_BIT(VARYING_SLOT_FOGC);
/* we always have the ATI_fs constants, and the fog params */
for (i = 0; i < MAX_NUM_FRAGMENT_CONSTANTS_ATI; i++) {
_mesa_add_parameter(prog->Parameters, PROGRAM_UNIFORM,
NULL, 4, GL_FLOAT, NULL, NULL);
}
_mesa_add_state_reference(prog->Parameters, fog_params_state);
_mesa_add_state_reference(prog->Parameters, fog_color);
prog->NumInstructions = 0;
prog->NumTemporaries = MAX_NUM_FRAGMENT_REGISTERS_ATI + 3; /* 3 input temps for arith ops */
prog->NumParameters = MAX_NUM_FRAGMENT_CONSTANTS_ATI + 2; /* 2 state variables for fog */
}