300 lines
7 KiB
C++
300 lines
7 KiB
C++
#include "../glNV.h"
|
|
#include <cstdio>
|
|
|
|
#include "rc1.0_general.h"
|
|
#include "nvparse_errors.h"
|
|
#include "nvparse_externs.h"
|
|
|
|
void GeneralCombinersStruct::Validate(int numConsts, ConstColorStruct *pcc)
|
|
{
|
|
GLint maxGCs;
|
|
glGetIntegerv(GL_MAX_GENERAL_COMBINERS_NV, &maxGCs);
|
|
if (num > maxGCs) {
|
|
char buffer[256];
|
|
sprintf(buffer, "%d general combiners specified, only %d supported", num, maxGCs);
|
|
errors.set(buffer);
|
|
num = maxGCs;
|
|
}
|
|
|
|
if (0 == num) {
|
|
// Setup a "fake" general combiner 0
|
|
general[0].ZeroOut();
|
|
num = 1;
|
|
}
|
|
|
|
localConsts = 0;
|
|
int i;
|
|
for (i = 0; i < num; i++)
|
|
localConsts += general[i].numConsts;
|
|
|
|
if (localConsts > 0)
|
|
if (NULL == qglCombinerStageParameterfvNV)
|
|
errors.set("local constant(s) specified, but not supported -- ignored");
|
|
else
|
|
for (i = 0; i < num; i++)
|
|
general[i].SetUnusedLocalConsts(numConsts, pcc);
|
|
|
|
for (i = 0; i < num; i++)
|
|
general[i].Validate(i);
|
|
|
|
|
|
for (; i < maxGCs; i++)
|
|
general[i].ZeroOut();
|
|
}
|
|
|
|
void GeneralCombinersStruct::Invoke()
|
|
{
|
|
qglCombinerParameteriNV(GL_NUM_GENERAL_COMBINERS_NV, num);
|
|
int i;
|
|
for (i = 0; i < num; i++)
|
|
general[i].Invoke(i);
|
|
|
|
if (NULL != qglCombinerStageParameterfvNV) {
|
|
if (localConsts > 0)
|
|
glEnable(GL_PER_STAGE_CONSTANTS_NV);
|
|
else
|
|
glDisable(GL_PER_STAGE_CONSTANTS_NV);
|
|
}
|
|
|
|
}
|
|
|
|
void GeneralCombinerStruct::ZeroOut()
|
|
{
|
|
numPortions = 2;
|
|
numConsts = 0;
|
|
|
|
portion[0].ZeroOut();
|
|
portion[0].designator = RCP_RGB;
|
|
portion[1].ZeroOut();
|
|
portion[1].designator = RCP_ALPHA;
|
|
}
|
|
|
|
|
|
void GeneralCombinerStruct::SetUnusedLocalConsts(int numGlobalConsts, ConstColorStruct *globalCCs)
|
|
{
|
|
int i;
|
|
for (i = 0; i < numGlobalConsts; i++) {
|
|
bool constUsed = false;
|
|
int j;
|
|
for (j = 0; j < numConsts; j++)
|
|
constUsed |= (cc[j].reg.bits.name == globalCCs[i].reg.bits.name);
|
|
if (!constUsed)
|
|
cc[numConsts++] = globalCCs[i];
|
|
}
|
|
}
|
|
|
|
|
|
void GeneralCombinerStruct::Validate(int stage)
|
|
{
|
|
if (2 == numConsts &&
|
|
cc[0].reg.bits.name == cc[1].reg.bits.name)
|
|
errors.set("local constant set twice");
|
|
|
|
switch (numPortions)
|
|
{
|
|
case 0:
|
|
portion[0].designator = RCP_RGB;
|
|
// Fallthru
|
|
case 1:
|
|
portion[1].designator = ((RCP_RGB == portion[0].designator) ? RCP_ALPHA : RCP_RGB);
|
|
// Fallthru
|
|
case 2:
|
|
if (portion[0].designator == portion[1].designator)
|
|
errors.set("portion declared twice");
|
|
break;
|
|
}
|
|
int i;
|
|
for (i = 0; i < numPortions; i++)
|
|
portion[i].Validate(stage);
|
|
|
|
for (; i < 2; i++)
|
|
portion[i].ZeroOut();
|
|
|
|
}
|
|
|
|
void GeneralCombinerStruct::Invoke(int stage)
|
|
{
|
|
int i;
|
|
|
|
if (NULL != qglCombinerStageParameterfvNV)
|
|
for (i = 0; i < numConsts; i++)
|
|
qglCombinerStageParameterfvNV(GL_COMBINER0_NV + stage, cc[i].reg.bits.name, &(cc[i].v[0]));
|
|
|
|
for (i = 0; i < 2; i++)
|
|
portion[i].Invoke(stage);
|
|
}
|
|
|
|
void GeneralPortionStruct::Validate(int stage)
|
|
{
|
|
gf.Validate(stage, designator);
|
|
}
|
|
|
|
void GeneralPortionStruct::Invoke(int stage)
|
|
{
|
|
gf.Invoke(stage, designator, bs);
|
|
}
|
|
|
|
void GeneralPortionStruct::ZeroOut()
|
|
{
|
|
gf.ZeroOut();
|
|
bs.word = RCP_SCALE_BY_ONE;
|
|
}
|
|
|
|
void GeneralFunctionStruct::ZeroOut()
|
|
{
|
|
// Create mapped registers for zero and discard
|
|
MappedRegisterStruct unsignedZero;
|
|
RegisterEnum zero;
|
|
zero.word = RCP_ZERO;
|
|
unsignedZero.Init(zero);
|
|
|
|
MappedRegisterStruct unsignedDiscard;
|
|
RegisterEnum discard;
|
|
discard.word = RCP_DISCARD;
|
|
unsignedDiscard.Init(discard);
|
|
|
|
numOps = 3;
|
|
|
|
op[0].op = RCP_MUL;
|
|
op[0].reg[0] = unsignedDiscard;
|
|
op[0].reg[1] = unsignedZero;
|
|
op[0].reg[2] = unsignedZero;
|
|
|
|
op[1].op = RCP_MUL;
|
|
op[1].reg[0] = unsignedDiscard;
|
|
op[1].reg[1] = unsignedZero;
|
|
op[1].reg[2] = unsignedZero;
|
|
|
|
op[2].op = RCP_SUM;
|
|
op[2].reg[0] = unsignedDiscard;
|
|
|
|
}
|
|
|
|
void GeneralFunctionStruct::Validate(int stage, int portion)
|
|
{
|
|
int i;
|
|
for (i = 0; i < numOps; i++)
|
|
op[i].Validate(stage, portion);
|
|
// Check if multiple ops are writing to same register (and it's not DISCARD)
|
|
if (numOps > 1 &&
|
|
op[0].reg[0].reg.bits.name == op[1].reg[0].reg.bits.name &&
|
|
GL_DISCARD_NV != op[0].reg[0].reg.bits.name)
|
|
errors.set("writing to same register twice");
|
|
if (numOps > 2 &&
|
|
(op[0].reg[0].reg.bits.name == op[2].reg[0].reg.bits.name ||
|
|
op[1].reg[0].reg.bits.name == op[2].reg[0].reg.bits.name) &&
|
|
GL_DISCARD_NV != op[2].reg[0].reg.bits.name)
|
|
errors.set("writing to same register twice");
|
|
|
|
// Set unused outputs to discard, unused inputs to zero/unsigned_identity
|
|
if (numOps < 2) {
|
|
// Set C input to zero
|
|
op[1].reg[1].reg.bits.name = GL_ZERO;
|
|
op[1].reg[1].map = GL_UNSIGNED_IDENTITY_NV;
|
|
op[1].reg[1].reg.bits.channel = portion;
|
|
|
|
// Set D input to zero
|
|
op[1].reg[2].reg.bits.name = GL_ZERO;
|
|
op[1].reg[2].map = GL_UNSIGNED_IDENTITY_NV;
|
|
op[1].reg[2].reg.bits.channel = portion;
|
|
|
|
// Discard CD output
|
|
op[1].op = false;
|
|
op[1].reg[0].reg.bits.name = GL_DISCARD_NV;
|
|
}
|
|
|
|
if (numOps < 3) {
|
|
// Discard muxSum output
|
|
op[2].reg[0].reg.bits.name = GL_DISCARD_NV;
|
|
op[2].op = RCP_SUM;
|
|
}
|
|
}
|
|
|
|
|
|
void GeneralFunctionStruct::Invoke(int stage, int portion, BiasScaleEnum bs)
|
|
{
|
|
GLenum portionEnum = (RCP_RGB == portion) ? GL_RGB : GL_ALPHA;
|
|
|
|
qglCombinerInputNV(GL_COMBINER0_NV + stage,
|
|
portionEnum,
|
|
GL_VARIABLE_A_NV,
|
|
op[0].reg[1].reg.bits.name,
|
|
op[0].reg[1].map,
|
|
MAP_CHANNEL(op[0].reg[1].reg.bits.channel));
|
|
|
|
qglCombinerInputNV(GL_COMBINER0_NV + stage,
|
|
portionEnum,
|
|
GL_VARIABLE_B_NV,
|
|
op[0].reg[2].reg.bits.name,
|
|
op[0].reg[2].map,
|
|
MAP_CHANNEL(op[0].reg[2].reg.bits.channel));
|
|
|
|
qglCombinerInputNV(GL_COMBINER0_NV + stage,
|
|
portionEnum,
|
|
GL_VARIABLE_C_NV,
|
|
op[1].reg[1].reg.bits.name,
|
|
op[1].reg[1].map,
|
|
MAP_CHANNEL(op[1].reg[1].reg.bits.channel));
|
|
|
|
qglCombinerInputNV(GL_COMBINER0_NV + stage,
|
|
portionEnum,
|
|
GL_VARIABLE_D_NV,
|
|
op[1].reg[2].reg.bits.name,
|
|
op[1].reg[2].map,
|
|
MAP_CHANNEL(op[1].reg[2].reg.bits.channel));
|
|
|
|
qglCombinerOutputNV(GL_COMBINER0_NV + stage,
|
|
portionEnum,
|
|
op[0].reg[0].reg.bits.name,
|
|
op[1].reg[0].reg.bits.name,
|
|
op[2].reg[0].reg.bits.name,
|
|
bs.bits.scale,
|
|
bs.bits.bias,
|
|
op[0].op,
|
|
op[1].op,
|
|
(op[2].op == RCP_MUX) ? true : false);
|
|
}
|
|
|
|
// This helper function assigns a channel to an undesignated input register
|
|
static void ConvertRegister(RegisterEnum& reg, int portion)
|
|
{
|
|
if (RCP_NONE == reg.bits.channel) {
|
|
reg.bits.channel = portion;
|
|
if (GL_FOG == reg.bits.name && RCP_ALPHA == portion)
|
|
// Special case where fog alpha is final only, but RGB is not
|
|
reg.bits.finalOnly = true;
|
|
}
|
|
}
|
|
|
|
|
|
void OpStruct::Validate(int stage, int portion)
|
|
{
|
|
int args = 1;
|
|
|
|
if (RCP_DOT == op || RCP_MUL == op)
|
|
args = 3;
|
|
else
|
|
args = 1;
|
|
|
|
if (reg[0].reg.bits.readOnly)
|
|
errors.set("writing to a read-only register");
|
|
|
|
if (RCP_ALPHA == portion &&
|
|
RCP_DOT == op)
|
|
errors.set("dot used in alpha portion");
|
|
int i;
|
|
for (i = 0; i < args; i++) {
|
|
ConvertRegister(reg[i].reg, portion);
|
|
if (reg[i].reg.bits.finalOnly)
|
|
errors.set("final register used in general combiner");
|
|
if (RCP_RGB == portion &&
|
|
RCP_BLUE == reg[i].reg.bits.channel)
|
|
errors.set("blue register used in rgb portion");
|
|
if (RCP_ALPHA == portion &&
|
|
RCP_RGB == reg[i].reg.bits.channel)
|
|
errors.set("rgb register used in alpha portion");
|
|
if (i > 0 &&
|
|
GL_DISCARD_NV == reg[i].reg.bits.name)
|
|
errors.set("reading from discard");
|
|
}
|
|
}
|