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+ read and write keyboard buffer

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This commit is contained in:
Julian Hinxlage 2019-11-26 11:49:19 +01:00
parent 82bab57e98
commit 32b66cf8bf
2 changed files with 12 additions and 3 deletions
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2
src/internal.cpp
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@ -74,7 +74,7 @@ namespace vkvm {
auto buttonPressed(KeyCode keyCode) -> void { auto buttonPressed(KeyCode keyCode) -> void {
lockSharedMemory(); lockSharedMemory();
auto reg = getRegisters(); auto reg = getRegisters();
if (reg->keyboardBuffer_index_write == sizeof(reg->keyboardBuffer)) { if (reg->keyboardBuffer_index_write >= sizeof(reg->keyboardBuffer)) {
reg->keyboardBuffer_index_write = 0; reg->keyboardBuffer_index_write = 0;
} }
reg->keyboardBuffer[reg->keyboardBuffer_index_write++] = keyCode; reg->keyboardBuffer[reg->keyboardBuffer_index_write++] = keyCode;

13
src/vkvm.cpp
View File

@ -210,8 +210,17 @@ namespace vkvm {
} }
auto getLastPressedKey() -> KeyCode { auto getLastPressedKey() -> KeyCode {
//TODO(julian): get key properly lockSharedMemory();
return KeyCode(0); auto reg = getRegisters();
if(reg->keyboardBuffer_index_read == reg->keyboardBuffer_index_write){
return KeyCode(0);
}
KeyCode keyCode = (KeyCode)reg->keyboardBuffer[reg->keyboardBuffer_index_read++];
if(reg->keyboardBuffer_index_read >= sizeof(reg->keyboardBuffer)){
reg->keyboardBuffer_index_read = 0;
}
unlockSharedMemory();
return keyCode;
} }
} }