citro3d/source/effect.c
2017-02-09 19:45:33 +01:00

90 lines
2.5 KiB
C

#include "internal.h"
static inline C3D_Effect* getEffect()
{
C3D_Context* ctx = C3Di_GetContext();
ctx->flags |= C3DiF_Effect;
return &ctx->effect;
}
void C3D_DepthMap(float zScale, float zOffset)
{
C3D_Effect* e = getEffect();
e->zScale = f32tof24(zScale);
e->zOffset = f32tof24(zOffset);
}
void C3D_CullFace(GPU_CULLMODE mode)
{
C3D_Effect* e = getEffect();
e->cullMode = mode;
}
void C3D_StencilTest(bool enable, GPU_TESTFUNC function, int ref, int inputMask, int writeMask)
{
C3D_Effect* e = getEffect();
e->stencilMode = (!!enable) | ((function & 7) << 4) | (writeMask << 8) | (ref << 16) | (inputMask << 24);
}
void C3D_StencilOp(GPU_STENCILOP sfail, GPU_STENCILOP dfail, GPU_STENCILOP pass)
{
C3D_Effect* e = getEffect();
e->stencilOp = sfail | (dfail << 4) | (pass << 8);
}
void C3D_BlendingColor(u32 color)
{
C3D_Effect* e = getEffect();
e->blendClr = color;
}
void C3D_DepthTest(bool enable, GPU_TESTFUNC function, GPU_WRITEMASK writemask)
{
C3D_Effect* e = getEffect();
e->depthTest = (!!enable) | ((function & 7) << 4) | (writemask << 8);
}
void C3D_AlphaTest(bool enable, GPU_TESTFUNC function, int ref)
{
C3D_Effect* e = getEffect();
e->alphaTest = (!!enable) | ((function & 7) << 4) | (ref << 8);
}
void C3D_AlphaBlend(GPU_BLENDEQUATION colorEq, GPU_BLENDEQUATION alphaEq, GPU_BLENDFACTOR srcClr, GPU_BLENDFACTOR dstClr, GPU_BLENDFACTOR srcAlpha, GPU_BLENDFACTOR dstAlpha)
{
C3D_Effect* e = getEffect();
e->alphaBlend = colorEq | (alphaEq << 8) | (srcClr << 16) | (dstClr << 20) | (srcAlpha << 24) | (dstAlpha << 28);
e->fragOpMode &= ~0xFF00;
e->fragOpMode |= 0x0100;
}
void C3D_ColorLogicOp(GPU_LOGICOP op)
{
C3D_Effect* e = getEffect();
e->fragOpMode &= ~0xFF00;
e->clrLogicOp = op;
}
void C3D_FragOpMode(GPU_FRAGOPMODE mode)
{
C3D_Effect* e = getEffect();
e->fragOpMode &= ~0xFF00FF;
e->fragOpMode |= 0xE40000 | mode;
}
void C3Di_EffectBind(C3D_Effect* e)
{
GPUCMD_AddWrite(GPUREG_DEPTHMAP_ENABLE, 1);
GPUCMD_AddWrite(GPUREG_FACECULLING_CONFIG, e->cullMode & 0x3);
GPUCMD_AddIncrementalWrites(GPUREG_DEPTHMAP_SCALE, (u32*)&e->zScale, 2);
GPUCMD_AddIncrementalWrites(GPUREG_FRAGOP_ALPHA_TEST, (u32*)&e->alphaTest, 4);
GPUCMD_AddWrite(GPUREG_BLEND_COLOR, e->blendClr);
GPUCMD_AddWrite(GPUREG_BLEND_FUNC, e->alphaBlend);
GPUCMD_AddWrite(GPUREG_LOGIC_OP, e->clrLogicOp);
GPUCMD_AddMaskedWrite(GPUREG_COLOR_OPERATION, 7, e->fragOpMode);
// Disable early depth test?
GPUCMD_AddMaskedWrite(GPUREG_EARLYDEPTH_TEST1, 1, 0);
GPUCMD_AddWrite(GPUREG_EARLYDEPTH_TEST2, 0);
}