uniforms.h

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#pragma once
#include "maths.h"
 
#define C3D_FVUNIF_COUNT 96
#define C3D_IVUNIF_COUNT 4
 
extern C3D_FVec C3D_FVUnif[2][C3D_FVUNIF_COUNT];
extern C3D_IVec C3D_IVUnif[2][C3D_IVUNIF_COUNT];
extern u16      C3D_BoolUnifs[2];
 
extern bool C3D_FVUnifDirty[2][C3D_FVUNIF_COUNT];
extern bool C3D_IVUnifDirty[2][C3D_IVUNIF_COUNT];
extern bool C3D_BoolUnifsDirty[2];
 
static inline C3D_FVec* C3D_FVUnifWritePtr(GPU_SHADER_TYPE type, int id, int size)
{
    int i;
    for (i = 0; i < size; i ++)
        C3D_FVUnifDirty[type][id+i] = true;
    return &C3D_FVUnif[type][id];
}
 
static inline C3D_IVec* C3D_IVUnifWritePtr(GPU_SHADER_TYPE type, int id)
{
    id -= 0x60;
    C3D_IVUnifDirty[type][id] = true;
    return &C3D_IVUnif[type][id];
}
 
static inline void C3D_FVUnifMtxNx4(GPU_SHADER_TYPE type, int id, const C3D_Mtx* mtx, int num)
{
    int i;
    C3D_FVec* ptr = C3D_FVUnifWritePtr(type, id, num);
    for (i = 0; i < num; i ++)
        ptr[i] = mtx->r[i]; // Struct copy.
}
 
static inline void C3D_FVUnifMtx4x4(GPU_SHADER_TYPE type, int id, const C3D_Mtx* mtx)
{
    C3D_FVUnifMtxNx4(type, id, mtx, 4);
}
 
static inline void C3D_FVUnifMtx3x4(GPU_SHADER_TYPE type, int id, const C3D_Mtx* mtx)
{
    C3D_FVUnifMtxNx4(type, id, mtx, 3);
}
 
static inline void C3D_FVUnifMtx2x4(GPU_SHADER_TYPE type, int id, const C3D_Mtx* mtx)
{
    C3D_FVUnifMtxNx4(type, id, mtx, 2);
}
 
static inline void C3D_FVUnifSet(GPU_SHADER_TYPE type, int id, float x, float y, float z, float w)
{
    C3D_FVec* ptr = C3D_FVUnifWritePtr(type, id, 1);
    ptr->x = x;
    ptr->y = y;
    ptr->z = z;
    ptr->w = w;
}
 
static inline void C3D_IVUnifSet(GPU_SHADER_TYPE type, int id, int x, int y, int z, int w)
{
    C3D_IVec* ptr = C3D_IVUnifWritePtr(type, id);
    *ptr = IVec_Pack(x, y, z, w);
}
 
static inline void C3D_BoolUnifSet(GPU_SHADER_TYPE type, int id, bool value)
{
    id -= 0x68;
    C3D_BoolUnifsDirty[type] = true;
    if (value)
        C3D_BoolUnifs[type] |= BIT(id);
    else
        C3D_BoolUnifs[type] &= ~BIT(id);
}
 
void C3D_UpdateUniforms(GPU_SHADER_TYPE type);