WiiUPluginLoaderBackend/source/patcher/hooks_patcher_static.cpp

#include "hooks_patcher_static.h"
#include <wups.h>
#include <vpad/input.h>
#include <padscore/wpad.h>
#include <coreinit/messagequeue.h>
#include <coreinit/core.h>

#include "../utils/ConfigUtils.h"
#include "../globals.h"
#include "../hooks.h"

uint8_t vpadPressCooldown = 0xFF;
bool configMenuOpened = false;
bool wantsToOpenConfigMenu = false;

DECL_FUNCTION(void, GX2SwapScanBuffers, void) {
    real_GX2SwapScanBuffers();

    if (wantsToOpenConfigMenu && !configMenuOpened) {
        configMenuOpened = true;
        ConfigUtils::openConfigMenu();
        configMenuOpened = false;
        wantsToOpenConfigMenu = false;
    }
}

DECL_FUNCTION(void, GX2SetTVBuffer, void *buffer, uint32_t buffer_size, int32_t tv_render_mode, GX2SurfaceFormat format, GX2BufferingMode buffering_mode) {
    storedTVBuffer.buffer = buffer;
    storedTVBuffer.buffer_size = buffer_size;
    storedTVBuffer.mode = tv_render_mode;
    storedTVBuffer.surface_format = format;
    storedTVBuffer.buffering_mode = buffering_mode;

    return real_GX2SetTVBuffer(buffer, buffer_size, tv_render_mode, format, buffering_mode);
}

DECL_FUNCTION(void, GX2SetDRCBuffer, void *buffer, uint32_t buffer_size, uint32_t drc_mode, GX2SurfaceFormat surface_format, GX2BufferingMode buffering_mode) {
    storedDRCBuffer.buffer = buffer;
    storedDRCBuffer.buffer_size = buffer_size;
    storedDRCBuffer.mode = drc_mode;
    storedDRCBuffer.surface_format = surface_format;
    storedDRCBuffer.buffering_mode = buffering_mode;

    return real_GX2SetDRCBuffer(buffer, buffer_size, drc_mode, surface_format, buffering_mode);
}

static uint32_t lastData0 = 0;

DECL_FUNCTION(uint32_t, OSReceiveMessage, OSMessageQueue *queue, OSMessage *message, uint32_t flags) {
    uint32_t res = real_OSReceiveMessage(queue, message, flags);
    if (queue == OSGetSystemMessageQueue()) {
        if (message != nullptr && res) {
            if (lastData0 != message->args[0]) {
                if (message->args[0] == 0xFACEF000) {
                    CallHook(gPluginInformation, WUPS_LOADER_HOOK_ACQUIRED_FOREGROUND);
                } else if (message->args[0] == 0xD1E0D1E0) {
                    // Implemented via WUMS Hook
                }
            }
            lastData0 = message->args[0];
        }
    }
    return res;
}

DECL_FUNCTION(void, OSReleaseForeground) {
    if (OSGetCoreId() == 1) {
        CallHook(gPluginInformation, WUPS_LOADER_HOOK_RELEASE_FOREGROUND);
    }
    real_OSReleaseForeground();
}

DECL_FUNCTION(int32_t, VPADRead, int32_t chan, VPADStatus *buffer, uint32_t buffer_size, int32_t *error) {
    int32_t result = real_VPADRead(chan, buffer, buffer_size, error);

    if (result > 0 && (buffer[0].hold == (VPAD_BUTTON_L | VPAD_BUTTON_DOWN | VPAD_BUTTON_MINUS)) && vpadPressCooldown == 0 && !configMenuOpened) {
        wantsToOpenConfigMenu = true;
        vpadPressCooldown = 0x3C;
    }

    if (vpadPressCooldown > 0) {
        vpadPressCooldown--;
    }
    return result;
}

DECL_FUNCTION(void, WPADRead, WPADChan chan, WPADStatusProController *data) {
    real_WPADRead(chan, data);

    if (!configMenuOpened && data[0].err == 0) {
        if (data[0].extensionType == WPAD_EXT_CORE || data[0].extensionType == WPAD_EXT_NUNCHUK) {
            // button data is in the first 2 bytes for wiimotes
            if (((uint16_t *) data)[0] == (WPAD_BUTTON_B | WPAD_BUTTON_DOWN | WPAD_BUTTON_MINUS)) {
                wantsToOpenConfigMenu = true;
            }
        } else {
            // TODO does this work for classic controllers?
            if (data[0].buttons == (WPAD_CLASSIC_BUTTON_L | WPAD_CLASSIC_BUTTON_DOWN | WPAD_CLASSIC_BUTTON_MINUS)) {
                wantsToOpenConfigMenu = true;
            }
        }
    }
}

function_replacement_data_t method_hooks_hooks_static[] __attribute__((section(".data"))) = {
        REPLACE_FUNCTION(GX2SwapScanBuffers, LIBRARY_GX2, GX2SwapScanBuffers),
        REPLACE_FUNCTION(GX2SetTVBuffer, LIBRARY_GX2, GX2SetTVBuffer),
        REPLACE_FUNCTION(GX2SetDRCBuffer, LIBRARY_GX2, GX2SetDRCBuffer),
        REPLACE_FUNCTION(OSReceiveMessage, LIBRARY_COREINIT, OSReceiveMessage),
        REPLACE_FUNCTION(OSReleaseForeground, LIBRARY_COREINIT, OSReleaseForeground),
        REPLACE_FUNCTION(VPADRead, LIBRARY_VPAD, VPADRead),
        REPLACE_FUNCTION(WPADRead, LIBRARY_PADSCORE, WPADRead),
};

uint32_t method_hooks_size_hooks_static __attribute__((section(".data"))) = sizeof(method_hooks_hooks_static) / sizeof(function_replacement_data_t);