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Libretro: Add support for touch input

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This commit is contained in:
Jonian Guveli 2024-07-20 23:21:00 +03:00
parent 5c40fb0cbf
commit 8611e98b92
1 changed files with 14 additions and 4 deletions
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18
src/libretro_core.cpp
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@ -15,6 +15,8 @@ static retro_input_state_t inputStateCallback;
static retro_hw_render_callback hw_render; static retro_hw_render_callback hw_render;
static std::filesystem::path savePath; static std::filesystem::path savePath;
static bool screenTouched;
std::unique_ptr<Emulator> emulator; std::unique_ptr<Emulator> emulator;
RendererGL* renderer; RendererGL* renderer;
@ -314,7 +316,8 @@ void retro_run() {
hid.setCirclepadX((xLeft / +32767) * 0x9C); hid.setCirclepadX((xLeft / +32767) * 0x9C);
hid.setCirclepadY((yLeft / -32767) * 0x9C); hid.setCirclepadY((yLeft / -32767) * 0x9C);
bool touch = inputStateCallback(0, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT); bool touchScreen = false;
const int posX = inputStateCallback(0, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X); const int posX = inputStateCallback(0, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X);
const int posY = inputStateCallback(0, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y); const int posY = inputStateCallback(0, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y);
@ -324,16 +327,23 @@ void retro_run() {
const int offsetX = 40; const int offsetX = 40;
const int offsetY = emulator->height / 2; const int offsetY = emulator->height / 2;
const bool inScreenX = newX >= offsetX && newX < emulator->width - offsetX; const bool inScreenX = newX >= offsetX && newX <= emulator->width - offsetX;
const bool inScreenY = newY >= offsetY && newY <= emulator->height; const bool inScreenY = newY >= offsetY && newY <= emulator->height;
if (touch && inScreenX && inScreenY) { if (inScreenX && inScreenY) {
touchScreen |= inputStateCallback(0, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT);
touchScreen |= inputStateCallback(0, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_PRESSED);
}
if (touchScreen) {
u16 x = static_cast<u16>(newX - offsetX); u16 x = static_cast<u16>(newX - offsetX);
u16 y = static_cast<u16>(newY - offsetY); u16 y = static_cast<u16>(newY - offsetY);
hid.setTouchScreenPress(x, y); hid.setTouchScreenPress(x, y);
} else { screenTouched = true;
} else if (screenTouched) {
hid.releaseTouchScreen(); hid.releaseTouchScreen();
screenTouched = false;
} }
hid.updateInputs(emulator->getTicks()); hid.updateInputs(emulator->getTicks());