void InitChromaticSingleStates()
{
//Set up the register combiners
glCombinerParameteriNV(GL_NUM_GENERAL_COMBINERS_NV, 2);
//Enable per stage constants
glEnable(GL_PER_STAGE_CONSTANTS_NV);
//Send (1, 0, 0, 0) and (0, 1, 0, 0) as combiner 0 constant colors
GLfloat combiner0Constant0[]={1.0f, 0.0f, 0.0f, 0.0f};
glCombinerStageParameterfvNV(GL_COMBINER0_NV, GL_CONSTANT_COLOR0_NV, combiner0Constant0);
GLfloat combiner0Constant1[]={0.0f, 1.0f, 0.0f, 0.0f};
glCombinerStageParameterfvNV(GL_COMBINER0_NV, GL_CONSTANT_COLOR1_NV, combiner0Constant1);
//Send (0, 0, 1, 0) as combiner 1 constant color 0
GLfloat combiner1Constant0[]={0.0f, 0.0f, 1.0f, 0.0f};
glCombinerStageParameterfvNV(GL_COMBINER1_NV, GL_CONSTANT_COLOR0_NV, combiner1Constant0);
//Combiner 0 does: red(tex2)+green(tex1)->spare0.rgb
glCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE2_ARB,
GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV, GL_CONSTANT_COLOR0_NV,
GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_C_NV, GL_TEXTURE1_ARB,
GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_D_NV, GL_CONSTANT_COLOR1_NV,
GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glCombinerOutputNV( GL_COMBINER0_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV, GL_SPARE0_NV,
GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
//Combiner 1 does: blue(tex0)+spare0.rgb->spare0.rgb
glCombinerInputNV( GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_A_NV, GL_TEXTURE0_ARB,
GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glCombinerInputNV( GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_B_NV, GL_CONSTANT_COLOR0_NV,
GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glCombinerInputNV( GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_C_NV, GL_SPARE0_NV,
GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glCombinerInputNV( GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_D_NV, GL_ZERO,
GL_UNSIGNED_INVERT_NV, GL_RGB);
glCombinerOutputNV( GL_COMBINER1_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV, GL_SPARE0_NV,
GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE);
glFinalCombinerInputNV(GL_VARIABLE_A_NV, GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glFinalCombinerInputNV(GL_VARIABLE_B_NV, GL_TEXTURE3_ARB, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glFinalCombinerInputNV(GL_VARIABLE_C_NV, GL_SPARE0_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
glFinalCombinerInputNV(GL_VARIABLE_D_NV, GL_ZERO, GL_UNSIGNED_IDENTITY_NV, GL_RGB);
//Bind vertex program
glBindProgramNV(GL_VERTEX_PROGRAM_NV, chromaticSingleVP);
}
void GeneralCombinerStruct::Invoke(int stage)
{
int i;
if (NULL != glCombinerStageParameterfvNV)
for (i = 0; i < numConsts; i++)
glCombinerStageParameterfvNV(GL_COMBINER0_NV + stage, cc[i].reg.bits.name, &(cc[i].v[0]));
for (i = 0; i < 2; i++)
portion[i].Invoke(stage);
}
void GLGpuNvparseProgram::bindProgramParameters(GpuProgramParametersSharedPtr params, uint16 mask)
{
// NB, register combiners uses 2 constants per texture stage (0 and 1)
// We have stored these as (stage * 2) + const_index in the physical buffer
// There are no other parameters in a register combiners shader
const FloatConstantList& floatList =
params->getFloatConstantList();
size_t index = 0;
for (FloatConstantList::const_iterator i = floatList.begin();
i != floatList.end(); ++i, ++index)
{
GLenum combinerStage = GL_COMBINER0_NV + (unsigned int)(index / 2);
GLenum pname = GL_CONSTANT_COLOR0_NV + (index % 2);
glCombinerStageParameterfvNV(combinerStage, pname, &(*i));
}
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_NVRegisterCombiners2_nglCombinerStageParameterfvNV(JNIEnv *env, jclass clazz, jint stage, jint pname, jobject params, jint params_position, jlong function_pointer) {
const GLfloat *params_address = ((const GLfloat *)(*env)->GetDirectBufferAddress(env, params)) + params_position;
glCombinerStageParameterfvNVPROC glCombinerStageParameterfvNV = (glCombinerStageParameterfvNVPROC)((intptr_t)function_pointer);
glCombinerStageParameterfvNV(stage, pname, params_address);
}
