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Improved OSD & displayPort initialisation. Allowed nested screen grabbing

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This commit is contained in:
Martin Budden 2016-11-16 14:27:59 +00:00
parent 9a62b04699
commit 7c8d1967d0
9 changed files with 153 additions and 124 deletions
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21
src/main/drivers/display.c
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@ -45,19 +45,25 @@ void displayGrab(displayPort_t *instance)
{
instance->vTable->grab(instance);
instance->vTable->clearScreen(instance);
instance->isGrabbed = true;
++instance->grabCount;
}
void displayRelease(displayPort_t *instance)
{
instance->vTable->release(instance);
instance->isGrabbed = false;
--instance->grabCount;
}
void displayReleaseAll(displayPort_t *instance)
{
instance->vTable->release(instance);
instance->grabCount = 0;
}
bool displayIsGrabbed(const displayPort_t *instance)
{
// can be called before initialised
return (instance && instance->isGrabbed);
return (instance && instance->grabCount > 0);
}
int displayWrite(displayPort_t *instance, uint8_t x, uint8_t y, const char *s)
@ -90,3 +96,12 @@ uint16_t displayTxBytesFree(const displayPort_t *instance)
return instance->vTable->txBytesFree(instance);
}
void displayInit(displayPort_t *instance, const displayPortVTable_t *vTable)
{
instance->vTable = vTable;
instance->vTable->clearScreen(instance);
instance->cleared = true;
instance->grabCount = 0;
instance->cursorRow = -1;
}