ref: aaa773b416d6de796d233caffb15fa78ad8b2a90
dir: /src/ft2_mouse.c/
// for finding memory leaks in debug mode with Visual Studio
#if defined _DEBUG && defined _MSC_VER
#include <crtdbg.h>
#endif
#include <stdio.h>
#include <stdbool.h>
#include "ft2_header.h"
#include "ft2_gui.h"
#include "ft2_video.h"
#include "ft2_scopes.h"
#include "ft2_help.h"
#include "ft2_sample_ed.h"
#include "ft2_inst_ed.h"
#include "ft2_pattern_ed.h"
#include "ft2_mouse.h"
#include "ft2_config.h"
#include "ft2_diskop.h"
#include "ft2_audioselector.h"
#include "ft2_midi.h"
#include "ft2_bmp.h"
#define NUM_CURSORS 6
static bool mouseBusyGfxBackwards;
static int16_t mouseShape;
static int32_t mouseModeGfxOffs, mouseBusyGfxFrame;
static SDL_Cursor *cursors[NUM_CURSORS];
static bool setSystemCursor(SDL_Cursor *cursor)
{
if (cursor == NULL)
{
SDL_SetCursor(SDL_GetDefaultCursor());
return false;
}
SDL_SetCursor(cursor);
return true;
}
void freeMouseCursors(void)
{
SDL_SetCursor(SDL_GetDefaultCursor());
for (uint32_t i = 0; i < NUM_CURSORS; i++)
{
if (cursors[i] != NULL)
{
SDL_FreeCursor(cursors[i]);
cursors[i] = NULL;
}
}
}
bool createMouseCursors(void) // creates scaled SDL surfaces for current mouse pointer shape
{
freeMouseCursors();
const uint8_t *cursorsSrc = bmp.mouseCursors;
switch (config.mouseType)
{
case MOUSE_IDLE_SHAPE_NICE: cursorsSrc += 0 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
case MOUSE_IDLE_SHAPE_UGLY: cursorsSrc += 1 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
case MOUSE_IDLE_SHAPE_AWFUL: cursorsSrc += 2 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
case MOUSE_IDLE_SHAPE_USABLE: cursorsSrc += 3 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
default: break;
}
for (uint32_t i = 0; i < NUM_CURSORS; i++)
{
SDL_Surface *surface = SDL_CreateRGBSurface(0, MOUSE_CURSOR_W*video.yScale, MOUSE_CURSOR_H*video.yScale, 32, 0, 0, 0, 0);
if (surface == NULL)
{
freeMouseCursors();
config.specialFlags2 &= ~HARDWARE_MOUSE; // enable software mouse
return false;
}
uint32_t colorkey = SDL_MapRGB(surface->format, 0x00, 0xFF, 0x00); // colorkey
uint32_t fg = SDL_MapRGB(surface->format, 0xFF, 0xFF, 0xFF); // foreground
uint32_t border = SDL_MapRGB(surface->format, 0x00, 0x00, 0x00); // border
SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
SDL_SetColorKey(surface, SDL_TRUE, colorkey);
SDL_SetSurfaceRLE(surface, SDL_TRUE);
const uint8_t *srcPixels8;
if (i == 3) // text edit cursor
srcPixels8 = &bmp.mouseCursors[12 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H)];
else if (i == 4) // mouse busy (wall clock)
srcPixels8 = &bmp.mouseCursorBusyClock[2 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H)]; // pick a good still-frame
else if (i == 5) // mouse busy (hourglass)
srcPixels8 = &bmp.mouseCursorBusyGlass[2 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H)]; // pick a good still-frame
else // normal idle cursor + disk op. "delete/rename" cursors
srcPixels8 = &cursorsSrc[i * (4 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H))];
SDL_LockSurface(surface);
uint32_t *dstPixels32 = (uint32_t *)surface->pixels;
for (int32_t k = 0; k < surface->w*surface->h; k++) // fill surface with colorkey pixels
dstPixels32[k] = colorkey;
// blit upscaled cursor to surface
for (uint32_t y = 0; y < MOUSE_CURSOR_H; y++)
{
uint32_t *outX = &dstPixels32[(y * video.yScale) * surface->w];
for (uint32_t yScale = 0; yScale < video.yScale; yScale++)
{
for (uint32_t x = 0; x < MOUSE_CURSOR_W; x++)
{
uint8_t srcPix = srcPixels8[(y * MOUSE_CURSOR_W) + x];
if (srcPix != PAL_TRANSPR)
{
uint32_t pixel = colorkey;
if (srcPix == PAL_MOUSEPT)
pixel = fg;
else if (srcPix == PAL_BCKGRND)
pixel = border;
for (uint32_t xScale = 0; xScale < video.yScale; xScale++)
outX[xScale] = pixel;
}
outX += video.xScale;
}
}
}
SDL_UnlockSurface(surface);
uint32_t hotX = 0;
uint32_t hotY = 0;
if (i == 3) // text edit cursor bias
{
hotX = 2 * video.xScale;
hotY = 6 * video.yScale;
}
cursors[i] = SDL_CreateColorCursor(surface, hotX, hotY);
if (cursors[i] == NULL)
{
SDL_FreeSurface(surface);
freeMouseCursors();
config.specialFlags2 &= ~HARDWARE_MOUSE; // enable software mouse
return false;
}
SDL_FreeSurface(surface);
}
if (config.specialFlags2 & HARDWARE_MOUSE)
{
if (mouse.mode == MOUSE_MODE_NORMAL) setSystemCursor(cursors[0]);
else if (mouse.mode == MOUSE_MODE_DELETE) setSystemCursor(cursors[1]);
else if (mouse.mode == MOUSE_MODE_RENAME) setSystemCursor(cursors[2]);
}
return true;
}
void setMousePosToCenter(void)
{
if (video.fullscreen)
{
mouse.setPosX = video.displayW / 2;
mouse.setPosY = video.displayH / 2;
}
else
{
mouse.setPosX = video.renderW / 2;
mouse.setPosY = video.renderH / 2;
}
mouse.setPosFlag = true;
}
void animateBusyMouse(void)
{
if (config.mouseAnimType == MOUSE_BUSY_SHAPE_CLOCK)
{
if (config.specialFlags2 & HARDWARE_MOUSE)
{
setSystemCursor(cursors[4]);
return;
}
if ((editor.framesPassed % 7) == 6)
{
if (mouseBusyGfxBackwards)
{
if (--mouseBusyGfxFrame <= 0)
{
mouseBusyGfxFrame = 0;
mouseBusyGfxBackwards = false;
}
}
else
{
if (++mouseBusyGfxFrame >= MOUSE_CLOCK_ANI_FRAMES-1)
{
mouseBusyGfxFrame = MOUSE_CLOCK_ANI_FRAMES - 1;
mouseBusyGfxBackwards = true;
}
}
changeSpriteData(SPRITE_MOUSE_POINTER,
&bmp.mouseCursorBusyClock[(mouseBusyGfxFrame % MOUSE_CLOCK_ANI_FRAMES) * (MOUSE_CURSOR_W * MOUSE_CURSOR_H)]);
}
}
else
{
if (config.specialFlags2 & HARDWARE_MOUSE)
{
setSystemCursor(cursors[5]);
return;
}
if ((editor.framesPassed % 5) == 4)
{
mouseBusyGfxFrame = (mouseBusyGfxFrame + 1) % MOUSE_GLASS_ANI_FRAMES;
changeSpriteData(SPRITE_MOUSE_POINTER,
&bmp.mouseCursorBusyGlass[mouseBusyGfxFrame * (MOUSE_CURSOR_W * MOUSE_CURSOR_H)]);
}
}
}
void setMouseShape(int16_t shape)
{
const uint8_t *gfxPtr;
if (editor.busy)
{
if (config.mouseAnimType == MOUSE_BUSY_SHAPE_CLOCK)
gfxPtr = &bmp.mouseCursorBusyClock[(mouseBusyGfxFrame % MOUSE_GLASS_ANI_FRAMES) * (MOUSE_CURSOR_W * MOUSE_CURSOR_H)];
else
gfxPtr = &bmp.mouseCursorBusyGlass[(mouseBusyGfxFrame % MOUSE_CLOCK_ANI_FRAMES) * (MOUSE_CURSOR_W * MOUSE_CURSOR_H)];
}
else
{
gfxPtr = &bmp.mouseCursors[mouseModeGfxOffs];
switch (shape)
{
case MOUSE_IDLE_SHAPE_NICE: gfxPtr += 0 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
case MOUSE_IDLE_SHAPE_UGLY: gfxPtr += 1 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
case MOUSE_IDLE_SHAPE_AWFUL: gfxPtr += 2 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
case MOUSE_IDLE_SHAPE_USABLE: gfxPtr += 3 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
case MOUSE_IDLE_TEXT_EDIT: gfxPtr += 12 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); break;
default: return;
}
}
mouseShape = shape;
changeSpriteData(SPRITE_MOUSE_POINTER, gfxPtr);
if (config.specialFlags2 & HARDWARE_MOUSE)
{
if (mouse.mode == MOUSE_MODE_NORMAL) setSystemCursor(cursors[0]);
else if (mouse.mode == MOUSE_MODE_DELETE) setSystemCursor(cursors[1]);
else if (mouse.mode == MOUSE_MODE_RENAME) setSystemCursor(cursors[2]);
}
}
static void setTextEditMouse(void)
{
setMouseShape(MOUSE_IDLE_TEXT_EDIT);
mouse.xBias = -2;
mouse.yBias = -6;
if (config.specialFlags2 & HARDWARE_MOUSE)
setSystemCursor(cursors[3]);
}
static void clearTextEditMouse(void)
{
setMouseShape(config.mouseType);
mouse.xBias = 0;
mouse.yBias = 0;
if (config.specialFlags2 & HARDWARE_MOUSE)
setSystemCursor(cursors[0]);
}
static void changeCursorIfOverTextBoxes(void)
{
int16_t i, mx, my;
textBox_t *t;
mouse.mouseOverTextBox = false;
if (editor.busy || mouse.mode != MOUSE_MODE_NORMAL)
return;
mx = mouse.x;
my = mouse.y;
for (i = 0; i < NUM_TEXTBOXES; i++)
{
if (editor.ui.sysReqShown && i > 0)
continue;
t = &textBoxes[i];
if (!t->visible)
continue;
if (!t->changeMouseCursor && (!editor.editTextFlag || i != mouse.lastEditBox))
continue; // some kludge of sorts
if (my >= t->y && my < t->y+t->h && mx >= t->x && mx < t->x+t->w)
{
mouse.mouseOverTextBox = true;
setTextEditMouse();
return;
}
}
// we're not inside a text edit box, set back mouse cursor
if (i == NUM_TEXTBOXES && mouseShape == MOUSE_IDLE_TEXT_EDIT)
clearTextEditMouse();
}
void setMouseMode(uint8_t mode)
{
switch (mode)
{
case MOUSE_MODE_NORMAL: { mouse.mode = mode; mouseModeGfxOffs = 0 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); } break;
case MOUSE_MODE_DELETE: { mouse.mode = mode; mouseModeGfxOffs = 4 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); } break;
case MOUSE_MODE_RENAME: { mouse.mode = mode; mouseModeGfxOffs = 8 * (MOUSE_CURSOR_W * MOUSE_CURSOR_H); } break;
default: return;
}
setMouseShape(config.mouseType);
}
void resetMouseBusyAnimation(void)
{
mouseBusyGfxBackwards = false;
mouseBusyGfxFrame = 0;
}
void setMouseBusy(bool busy) // can be called from other threads
{
if (busy)
{
editor.ui.setMouseIdle = false;
editor.ui.setMouseBusy = true;
}
else
{
editor.ui.setMouseBusy = false;
editor.ui.setMouseIdle = true;
}
}
void mouseAnimOn(void)
{
editor.ui.setMouseBusy = false;
editor.ui.setMouseIdle = false;
editor.busy = true;
setMouseShape(config.mouseAnimType);
}
void mouseAnimOff(void)
{
editor.ui.setMouseBusy = false;
editor.ui.setMouseIdle = false;
editor.busy = false;
setMouseShape(config.mouseType);
}
static void mouseWheelDecRow(void)
{
int16_t pattPos;
if (songPlaying)
return;
pattPos = editor.pattPos - 1;
if (pattPos < 0)
pattPos = pattLens[editor.editPattern] - 1;
setPos(-1, pattPos, true);
}
static void mouseWheelIncRow(void)
{
int16_t pattPos;
if (songPlaying)
return;
pattPos = editor.pattPos + 1;
if (pattPos > (pattLens[editor.editPattern] - 1))
pattPos = 0;
setPos(-1, pattPos, true);
}
void mouseWheelHandler(bool directionUp)
{
if (editor.ui.sysReqShown || editor.editTextFlag)
return;
if (editor.ui.extended)
{
if (mouse.y <= 52)
{
if (mouse.x <= 111) directionUp ? decSongPos() : incSongPos();
else if (mouse.x >= 386) directionUp ? decCurIns() : incCurIns();
}
else
{
directionUp ? mouseWheelDecRow() : mouseWheelIncRow();
}
return;
}
if (mouse.y < 173)
{
// top screens
if (editor.ui.helpScreenShown)
{
// help screen
if (directionUp)
{
helpScrollUp();
helpScrollUp();
}
else
{
helpScrollDown();
helpScrollDown();
}
}
else if (editor.ui.diskOpShown)
{
// disk op - 3x speed
if (mouse.x <= 355)
{
if (directionUp)
{
pbDiskOpListUp();
pbDiskOpListUp();
pbDiskOpListUp();
}
else
{
pbDiskOpListDown();
pbDiskOpListDown();
pbDiskOpListDown();
}
}
}
else if (editor.ui.configScreenShown)
{
if (editor.currConfigScreen == CONFIG_SCREEN_IO_DEVICES)
{
// audio device selectors
if (mouse.x >= 110 && mouse.x <= 355 && mouse.y <= 173)
{
if (mouse.y < 87)
directionUp ? scrollAudOutputDevListUp() : scrollAudOutputDevListDown();
else
directionUp ? scrollAudInputDevListUp() : scrollAudInputDevListDown();
}
}
#ifdef HAS_MIDI
else if (editor.currConfigScreen == CONFIG_SCREEN_MIDI_INPUT)
{
// midi input device selector
if (mouse.x >= 110 && mouse.x <= 503 && mouse.y <= 173)
directionUp ? scrollMidiInputDevListUp() : scrollMidiInputDevListDown();
}
#endif
}
if (!editor.ui.aboutScreenShown && !editor.ui.helpScreenShown &&
!editor.ui.configScreenShown && !editor.ui.nibblesShown)
{
if (mouse.x >= 421 && mouse.y <= 173)
{
if (mouse.y <= 93) directionUp ? decCurIns() : incCurIns();
else if (mouse.y >= 94) directionUp ? decCurSmp() : incCurSmp();
}
else if (!editor.ui.diskOpShown && mouse.x <= 111 && mouse.y <= 76)
{
directionUp ? decSongPos() : incSongPos();
}
}
}
else
{
// bottom screens
if (editor.ui.sampleEditorShown)
{
if (mouse.y >= 174 && mouse.y <= 328)
directionUp ? mouseZoomSampleDataIn() : mouseZoomSampleDataOut();
}
else if (editor.ui.patternEditorShown)
{
directionUp ? mouseWheelDecRow() : mouseWheelIncRow();
}
}
}
static bool testSamplerDataMouseDown(void)
{
if (editor.ui.sampleEditorShown && mouse.y >= 174 && mouse.y <= 327 && editor.ui.sampleDataOrLoopDrag == -1)
{
handleSampleDataMouseDown(false);
return true;
}
return false;
}
static bool testPatternDataMouseDown(void)
{
uint16_t y1, y2;
if (editor.ui.patternEditorShown)
{
y1 = editor.ui.extended ? 56 : 176;
y2 = editor.ui.pattChanScrollShown ? 382 : 396;
if (mouse.y >= y1 && mouse.y <= y2 && mouse.x >= 29 && mouse.x <= 602)
{
handlePatternDataMouseDown(false);
return true;
}
}
return false;
}
void mouseButtonUpHandler(uint8_t mouseButton)
{
#ifndef __APPLE__
if (!video.fullscreen) // release mouse button trap
SDL_SetWindowGrab(video.window, SDL_FALSE);
#endif
if (mouseButton == SDL_BUTTON_LEFT)
{
mouse.leftButtonPressed = false;
mouse.leftButtonReleased = true;
if (editor.ui.leftLoopPinMoving)
{
setLeftLoopPinState(false);
editor.ui.leftLoopPinMoving = false;
}
if (editor.ui.rightLoopPinMoving)
{
setRightLoopPinState(false);
editor.ui.rightLoopPinMoving = false;
}
}
else if (mouseButton == SDL_BUTTON_RIGHT)
{
mouse.rightButtonPressed = false;
mouse.rightButtonReleased = true;
if (editor.editSampleFlag)
{
// right mouse button released after hand-editing sample data
if (instr[editor.curInstr] != NULL)
fixSample(&instr[editor.curInstr]->samp[editor.curSmp]);
resumeAudio();
if (editor.ui.sampleEditorShown)
writeSample(true);
setSongModifiedFlag();
editor.editSampleFlag = false;
}
}
mouse.firstTimePressingButton = false;
mouse.buttonCounter = 0;
editor.textCursorBlinkCounter = 0;
// if we used both mouse button at the same time and released *one*, don't release GUI object
if ( mouse.leftButtonPressed && !mouse.rightButtonPressed) return;
if (!mouse.leftButtonPressed && mouse.rightButtonPressed) return;
if (editor.ui.sampleEditorShown)
testSmpEdMouseUp();
mouse.lastX = 0;
mouse.lastY = 0;
editor.ui.sampleDataOrLoopDrag = -1;
// check if we released a GUI object
testDiskOpMouseRelease();
testPushButtonMouseRelease(true);
testCheckBoxMouseRelease();
testScrollBarMouseRelease();
testRadioButtonMouseRelease();
// revert "delete/rename" mouse modes (disk op.)
if (mouse.lastUsedObjectID != PB_DISKOP_DELETE && mouse.lastUsedObjectID != PB_DISKOP_RENAME)
{
if (mouse.mode != MOUSE_MODE_NORMAL)
setMouseMode(MOUSE_MODE_NORMAL);
}
mouse.lastUsedObjectID = OBJECT_ID_NONE;
mouse.lastUsedObjectType = OBJECT_NONE;
}
void mouseButtonDownHandler(uint8_t mouseButton)
{
#ifndef __APPLE__
if (!video.fullscreen) // trap mouse pointer while holding down left and/or right button
SDL_SetWindowGrab(video.window, SDL_TRUE);
#endif
// if already holding left button and clicking right, don't do mouse down handling
if (mouseButton == SDL_BUTTON_RIGHT && mouse.leftButtonPressed)
{
if (editor.ui.sampleDataOrLoopDrag == -1)
{
mouse.rightButtonPressed = true;
mouse.rightButtonReleased = false;
}
// kludge - we must do scope solo/unmute all here
if (!editor.ui.sysReqShown)
testScopesMouseDown();
return;
}
// if already holding right button and clicking left, don't do mouse down handling
if (mouseButton == SDL_BUTTON_LEFT && mouse.rightButtonPressed)
{
if (editor.ui.sampleDataOrLoopDrag == -1)
{
mouse.leftButtonPressed = true;
mouse.leftButtonReleased = false;
}
// kludge - we must do scope solo/unmute all here
if (!editor.ui.sysReqShown)
testScopesMouseDown();
return;
}
// mouse 0,0 = open exit dialog
if (mouse.x == 0 && mouse.y == 0)
{
if (quitBox(false) == 1)
editor.throwExit = true;
// release button presses from okBox()
mouse.leftButtonPressed = false;
mouse.rightButtonPressed = false;
mouse.leftButtonReleased = false;
mouse.rightButtonReleased = false;
return;
}
if (mouseButton == SDL_BUTTON_LEFT)
mouse.leftButtonPressed = true;
else if (mouseButton == SDL_BUTTON_RIGHT)
mouse.rightButtonPressed = true;
mouse.leftButtonReleased = false;
mouse.rightButtonReleased = false;
// don't do mouse down testing here if we already are using an object
if (mouse.lastUsedObjectType != OBJECT_NONE)
return;
// kludge #2
if (mouse.lastUsedObjectType != OBJECT_PUSHBUTTON && mouse.lastUsedObjectID != OBJECT_ID_NONE)
return;
// kludge #3
if (!mouse.rightButtonPressed)
mouse.lastUsedObjectID = OBJECT_ID_NONE;
// check if we pressed a GUI object
/* test objects like this - clickable things *never* overlap, so no need to test all
** other objects if we clicked on one already */
testInstrSwitcherMouseDown(); // kludge: allow right click to both change ins. and edit text
if (testTextBoxMouseDown()) return;
if (testPushButtonMouseDown()) return;
if (testCheckBoxMouseDown()) return;
if (testScrollBarMouseDown()) return;
if (testRadioButtonMouseDown()) return;
// from this point, we don't need to test more widgets if a system request box is shown
if (editor.ui.sysReqShown)
return;
if (testInstrVolEnvMouseDown(false)) return;
if (testInstrPanEnvMouseDown(false)) return;
if (testDiskOpMouseDown(false)) return;
if (testPianoKeysMouseDown(false)) return;
if (testSamplerDataMouseDown()) return;
if (testPatternDataMouseDown()) return;
if (testScopesMouseDown()) return;
if (testAudioDeviceListsMouseDown()) return;
#ifdef HAS_MIDI
if (testMidiInputDeviceListMouseDown()) return;
#endif
}
void handleLastGUIObjectDown(void)
{
if (mouse.lastUsedObjectType == OBJECT_NONE)
return;
if (mouse.leftButtonPressed || mouse.rightButtonPressed)
{
if (mouse.lastUsedObjectID != OBJECT_ID_NONE)
{
switch (mouse.lastUsedObjectType)
{
case OBJECT_PUSHBUTTON: handlePushButtonsWhileMouseDown(); break;
case OBJECT_RADIOBUTTON: handleRadioButtonsWhileMouseDown(); break;
case OBJECT_CHECKBOX: handleCheckBoxesWhileMouseDown(); break;
case OBJECT_SCROLLBAR: handleScrollBarsWhileMouseDown(); break;
case OBJECT_TEXTBOX: handleTextBoxWhileMouseDown(); break;
default: break;
}
}
else
{
// test non-standard GUI elements
switch (mouse.lastUsedObjectType)
{
case OBJECT_INSTRSWITCH: testInstrSwitcherMouseDown(); break;
case OBJECT_PATTERNMARK: handlePatternDataMouseDown(true); break;
case OBJECT_DISKOPLIST: testDiskOpMouseDown(true); break;
case OBJECT_SMPDATA: handleSampleDataMouseDown(true); break;
case OBJECT_PIANO: testPianoKeysMouseDown(true); break;
case OBJECT_INSVOLENV: testInstrVolEnvMouseDown(true); break;
case OBJECT_INSPANENV: testInstrPanEnvMouseDown(true); break;
default: break;
}
}
}
}
void updateMouseScaling(void)
{
if (video.renderW > 0.0) video.dMouseXMul = (double)SCREEN_W / video.renderW;
if (video.renderH > 0.0) video.dMouseYMul = (double)SCREEN_H / video.renderH;
}
void readMouseXY(void)
{
int16_t x, y;
int32_t mx, my;
if (mouse.setPosFlag)
{
mouse.setPosFlag = false;
if (SDL_GetWindowFlags(video.window) & SDL_WINDOW_SHOWN)
SDL_WarpMouseInWindow(video.window, mouse.setPosX, mouse.setPosY);
return;
}
SDL_PumpEvents(); // gathers all pending input from devices into the event queue (less mouse lag)
SDL_GetMouseState(&mx, &my);
/* in centered fullscreen mode, trap the mouse inside the framed image
** and subtract the coords to match the OS mouse position (fixes touch from touchscreens) */
if (video.fullscreen && !(config.windowFlags & FILTERING))
{
if (mx < video.renderX)
{
mx = video.renderX;
SDL_WarpMouseInWindow(video.window, mx, my);
}
else if (mx >= video.renderX+video.renderW)
{
mx = (video.renderX + video.renderW) - 1;
SDL_WarpMouseInWindow(video.window, mx, my);
}
if (my < video.renderY)
{
my = video.renderY;
SDL_WarpMouseInWindow(video.window, mx, my);
}
else if (my >= video.renderY+video.renderH)
{
my = (video.renderY + video.renderH) - 1;
SDL_WarpMouseInWindow(video.window, mx, my);
}
mx -= video.renderX;
my -= video.renderY;
}
if (mx < 0) mx = 0;
if (my < 0) mx = 0;
// multiply coords by video upscaling factors (don't round)
mx = (int32_t)(mx * video.dMouseXMul);
my = (int32_t)(my * video.dMouseYMul);
if (mx >= SCREEN_W) mx = SCREEN_W - 1;
if (my >= SCREEN_H) my = SCREEN_H - 1;
if (config.specialFlags2 & HARDWARE_MOUSE)
{
// hardware mouse (OS)
mouse.x = (int16_t)mx;
mouse.y = (int16_t)my;
hideSprite(SPRITE_MOUSE_POINTER);
}
else
{
// software mouse (FT2 mouse)
x = (int16_t)mx;
y = (int16_t)my;
mouse.x = x;
mouse.y = y;
// for text editing cursor (do this after clamp)
x += mouse.xBias;
y += mouse.yBias;
if (x < 0) x = 0;
if (y < 0) y = 0;
setSpritePos(SPRITE_MOUSE_POINTER, x, y);
}
changeCursorIfOverTextBoxes();
}