m_faders

3 files changed, 209 insertions, 0 deletions

diff --git a/src/m/m_color_fader.cpp b/src/m/m_color_fader.cpp
new file mode 100644
index 00000000..66a03b35
--- /dev/null
+++ b/src/m/m_color_fader.cpp
@@ -0,0 +1,105 @@
+#include <m/m_color_fader.h>
+#include <rvl/SC.h>
+#include <rvl/VI.h>
+
+mColorFader_c::mColorFader_c(const mColor &color, EStatus status) : mFaderBase_c(color, status) {
+    mAspectRatio = SCGetAspectRatio();
+}
+
+mColorFader_c::~mColorFader_c() {}
+
+void mColorFader_c::setStatus(EStatus status) {
+    if (status == FADED_OUT) {
+        mStatus = FADED_OUT;
+        mFaderColor.a = 0xff;
+    } else if (status == FADED_IN) {
+        mStatus = FADED_IN;
+        mFaderColor.a = 0;
+    }
+}
+
+u8 mColorFader_c::calc() {
+    u8 result = mFaderBase_c::calc();
+    u16 elapsed = mElapsed;
+    u16 frame = mFrame;
+    if (elapsed > mFrame) {
+        elapsed = frame;
+    }
+
+    switch (mStatus) {
+        case FADED_IN:
+            mFaderColor.a = 0;
+            break;
+        case FADED_OUT:
+            mFaderColor.a = 0xff;
+            break;
+        case FADING_IN:
+            mFaderColor.a = 0xff - (elapsed * 0xff / frame);
+            break;
+        case FADING_OUT:
+            mFaderColor.a = elapsed * 0xff / frame;
+            break;
+    }
+    
+
+    return result;
+}
+
+#define VI_VIRTUAL_HALF_WIDTH_WIDE (406.0f)
+#define VI_VIRTUAL_HALF_WIDTH_STD (304.0f)
+#define VI_VIRTUAL_HALF_HEIGHT (228.0f)
+
+void mColorFader_c::draw() {
+    f32 h = (mAspectRatio == 1) ? VI_VIRTUAL_HALF_WIDTH_WIDE : VI_VIRTUAL_HALF_WIDTH_STD;
+
+    if (mFaderColor.a == 0) {
+        return;
+    }
+
+    Mtx44 projMtx;
+    C_MTXOrtho(projMtx, -VI_VIRTUAL_HALF_HEIGHT, VI_VIRTUAL_HALF_HEIGHT, -h, h, 0, 1);
+    GXSetProjection(projMtx, GX_ORTHOGRAPHIC);
+
+    Mtx posMtx;
+    PSMTXIdentity(posMtx);
+    GXLoadPosMtxImm(posMtx, 0);
+    GXSetCurrentMtx(0);
+
+    GXClearVtxDesc();
+    GXInvalidateVtxCache();
+
+    GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
+    GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_CLR_RGBA, GX_F32, 0);
+
+    GXSetNumChans(1);
+    GXSetChanMatColor(GX_COLOR0A0, mFaderColor);
+    GXSetChanCtrl(GX_COLOR0A0, 0, GX_SRC_REG, GX_SRC_REG, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE);
+
+    GXSetNumTexGens(0);
+    GXSetNumIndStages(0);
+    __GXSetIndirectMask(0);
+
+    GXSetNumTevStages(1);
+    GXSetTevOp(GX_TEVSTAGE0, 4);
+    GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR0A0);
+
+    if (mFaderColor.a == 255) {
+        GXSetBlendMode(GX_BM_NONE, GX_BL_ONE, GX_BL_ZERO, GX_LO_SET);
+    } else {
+        GXSetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_SET);
+    }
+
+    GXSetColorUpdate(1);
+    GXSetAlphaUpdate(1);
+    GXSetZMode(0, GX_NEVER, 0);
+    GXSetCullMode(GX_CULL_BACK);
+
+    GXBegin(GX_QUADS, GX_VTXFMT0, 4);
+
+    GXPosition3f32(-h, -VI_VIRTUAL_HALF_HEIGHT, 0);
+    GXPosition3f32(h, -VI_VIRTUAL_HALF_HEIGHT, 0);
+    GXPosition3f32(h, VI_VIRTUAL_HALF_HEIGHT, 0);
+    GXPosition3f32(-h, VI_VIRTUAL_HALF_HEIGHT, 0);
+
+    // GXEnd();
+}
diff --git a/src/m/m_fader.cpp b/src/m/m_fader.cpp
new file mode 100644
index 00000000..8f88a4ab
--- /dev/null
+++ b/src/m/m_fader.cpp
@@ -0,0 +1,36 @@
+#include <m/m_fader.h>
+
+// nw4r::g3d::G3DState::Invalidate
+extern "C" void fn_8044E3B0(u32 flags);
+// m3d::resetMaterial according to NSMBW
+extern "C" void fn_802E46D0();
+
+void mFader_c::draw() {
+    fn_8044E3B0(0x7ff);
+    fn_802E46D0();
+    mpFader->draw();
+}
+
+bool mFader_c::setFader(mFaderBase_c *fader) {
+    if (mpFader != nullptr) {
+        bool isFading = isStatus(mFaderBase_c::FADING_IN) || isStatus(mFaderBase_c::FADING_OUT);
+
+        if (isFading) {
+            return false;
+        }
+    }
+
+    mFaderBase_c::EStatus status = mpFader != nullptr ? mpFader->getStatus() : fader->getStatus();
+
+    mpFader = fader;
+    switch (status) {
+    case mFaderBase_c::FADED_OUT:
+        fader->setStatus(mFaderBase_c::FADED_OUT);
+        break;
+    case mFaderBase_c::FADED_IN:
+        fader->setStatus(mFaderBase_c::FADED_IN);
+        break;
+    }
+
+    return true;
+}
diff --git a/src/m/m_fader_base.cpp b/src/m/m_fader_base.cpp
new file mode 100644
index 00000000..ae5c182b
--- /dev/null
+++ b/src/m/m_fader_base.cpp
@@ -0,0 +1,68 @@
+#include <m/m_fader_base.h>
+
+mFaderBase_c::mFaderBase_c(const mColor &color, EStatus status) : mFlag(0), mFrame(20), mElapsed(0) {
+    setColor(color);
+    mFlag |= FLAG_2;
+
+    switch (status) {
+    case FADED_OUT:
+        mStatus = FADED_OUT;
+        break;
+    case FADED_IN:
+        mStatus = FADED_IN;
+        break;
+    }
+}
+
+mFaderBase_c::~mFaderBase_c() {}
+
+void mFaderBase_c::setFrame(u16 frame) {
+    mFrame = frame;
+}
+
+void mFaderBase_c::setColor(const mColor &newColor) {
+    mFaderColor.r = newColor.r;
+    mFaderColor.g = newColor.g;
+    mFaderColor.b = newColor.b;
+}
+
+mFaderBase_c::EStatus mFaderBase_c::getStatus() const {
+    return mStatus;
+}
+
+bool mFaderBase_c::fadeIn() {
+    bool canFadeIn = mStatus == FADED_OUT;
+    if (canFadeIn) {
+        mStatus = FADING_IN;
+        mElapsed = 0;
+    }
+
+    return canFadeIn;
+}
+
+bool mFaderBase_c::fadeOut() {
+    bool canFadeOut = mStatus == FADED_IN;
+    if (canFadeOut) {
+        mStatus = FADING_OUT;
+        mElapsed = 0;
+    }
+
+    return canFadeOut;
+}
+
+u8 mFaderBase_c::calc() {
+    u8 result = 0;
+    if (mStatus == FADING_IN) {
+        if (mElapsed++ > mFrame) {
+            mStatus = FADED_IN;
+            result = (mFlag & FLAG_1) != 0;
+        }
+    } else if (mStatus == FADING_OUT) {
+        if (++mElapsed > mFrame + 1) {
+            mStatus = FADED_OUT;
+            result = (mFlag & FLAG_2) != 0;
+        }
+    }
+
+    return result;
+}