HALSDL2

HAL implementation for the TouchGFX simulator. This particular simulator HAL implementation uses SDL2 to show the content of the framebuffer in a window.

See: HAL

Inherits from: HAL

Public Functions

virtual bool	blockCopy(void RESTRICT dest, const void RESTRICT src, uint32_t numBytes)
	This function performs a platform-specific memcpy, if supported by the hardware.
virtual void	copyScreenshotToClipboard()
	Copies the screenshot to clipboard.
bool	doSampleTouch(int32_t & x, int32_t & y) const
	Samples the position of the mouse cursor.
virtual void	flushFrameBuffer()
	This function is called whenever the framework has performed a complete draw.
virtual void	flushFrameBuffer(const Rect & rect)
	This function is called whenever the framework has performed a partial draw.
bool	getConsoleVisible() const
	Is console window visible?
FILE *	getPrintFile() const
	Get file handle to output file (if set).
bool	getWindowVisible() const
	Is the window visible?
	HALSDL2(DMA_Interface & dma, LCD & lcd, TouchController & touchCtrl, uint16_t width, uint16_t height)
	Initializes a new instance of the HALSDL2 class.
void	loadSkin(DisplayOrientation orientation, int x, int y)
	Loads a skin for a given display orientation that will be rendered in the simulator window with the the TouchGFX framebuffer placed inside the bitmap at the given coordinates.
bool	printToFile(const char * filename)
	Also write touchgfx_printf() to a file.
virtual bool	sampleKey(uint8_t & key)
	Sample key event from keyboard.
virtual void	saveNextScreenshots(int n)
	Copy the next N screenshots to disk.
void	saveScreenshot()
	Saves a screenshot to the default folder and default filename.
virtual void	saveScreenshot(char folder, char filename)
	Saves a screenshot.
virtual bool	sdl_init(int argcount, char ** args)
	Initializes SDL.
void	setConsoleVisible(bool visible, bool redrawWindow =true)
	Change visibility of console window (hidden vs.
void	setVsyncInterval(float ms)
	Sets vsync interval for simulating same tick speed as the real hardware.
void	setWindowVisible(bool visible, bool redrawWindow =true)
	Change visibility of window (hidden vs.
virtual void	taskEntry()
	Main event loop.
uint8_t *	doRotate(uint8_t * src)
	Rotates a framebuffer if the display is rotated.
char **	getArgv(int * argc)
	Gets the argc and argv for a Windows program.
const char *	getWindowTitle()
	Gets window title.
bool	isSingleStepping()
	Is single stepping.
uint8_t *	scaleTo24bpp(uint16_t * src, Bitmap::BitmapFormat format)
	Scale framebuffer to 24bpp.
void	setSingleStepping(bool singleStepping =true)
	Single stepping enable/disable.
void	setWindowTitle(const char * title)
	Sets window title.
void	singleStep(uint16_t steps =1)
	Single step a number of steps.

Protected Functions

virtual void	configureInterrupts()
	Configures the interrupts relevant for TouchGFX.
virtual void	configureLCDInterrupt()
	Configures LCD interrupt.
virtual void	disableInterrupts()
	Disables the DMA and LCD interrupts.
virtual void	enableInterrupts()
	Enables the DMA and LCD interrupts.
virtual void	enableLCDControllerInterrupt()
	Enables the LCD interrupt.
virtual uint16_t *	getTFTFrameBuffer() const
	Gets TFT framebuffer.
virtual void	performDisplayOrientationChange()
	Perform the actual display orientation change.
virtual void	renderLCD_FrameBufferToMemory(const Rect & _rectToUpdate, uint8_t * frameBuffer)
	Update framebuffer using an SDL Surface.
virtual void	setTFTFrameBuffer(uint16_t * addr)
	Sets TFT framebuffer.

Additional inherited members

Public Types inherited from HAL

enum	FrameRefreshStrategy { REFRESH_STRATEGY_DEFAULT, REFRESH_STRATEGY_OPTIM_SINGLE_BUFFER_TFT_CTRL, REFRESH_STRATEGY_PARTIAL_FRAMEBUFFER }
	A list of available frame refresh strategies.
enum	RenderingMethod { SOFTWARE, HARDWARE }
	A list of rendering methods.

Public Functions inherited from HAL

virtual void	allowDMATransfers()
	Allow the DMA to start transfers.
virtual void	backPorchExited()
	Has to be called from within the LCD IRQ rutine when the Back Porch Exit is reached.
virtual void	blitCopy(const uint16_t pSrc, const uint8_t pClut, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t srcWidth, uint8_t alpha, bool hasTransparentPixels, uint16_t dstWidth, Bitmap::BitmapFormat srcFormat, Bitmap::BitmapFormat dstFormat)
	Blits a 2D source-array to the framebuffer performing alpha-blending as specified.
virtual void	blitCopy(const uint16_t * pSrc, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t srcWidth, uint8_t alpha, bool hasTransparentPixels)
	Blits a 2D source-array to the framebuffer performing alpha-blending as specified using the default lcd format.
virtual void	blitCopy(const uint16_t * pSrc, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t srcWidth, uint8_t alpha, bool hasTransparentPixels, uint16_t dstWidth, Bitmap::BitmapFormat srcFormat, Bitmap::BitmapFormat dstFormat)
	Blits a 2D source-array to the framebuffer performing alpha-blending as specified.
virtual void	blitCopyARGB8888(const uint16_t * pSrc, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t srcWidth, uint8_t alpha)
	Blits a 2D source-array to the framebuffer performing per-pixel alpha blending.
virtual void	blitCopyGlyph(const uint8_t * pSrc, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t srcWidth, colortype color, uint8_t alpha, BlitOperations operation)
	Blits a 4bpp or 8bpp glyph - maybe use the same method and supply additional color mode arg.
virtual void	blitCopyWord(const uint16_t * pSrc, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t srcWidth, uint16_t dstWidth)
	Blits a 2D source-array to the framebuffer using 16-bit copy without conversion.
virtual void	blitFill(colortype color, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint8_t alpha)
	Blits a color value to the framebuffer performing alpha-blending as specified.
virtual void	blitFill(colortype color, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint8_t alpha, uint16_t dstWidth, Bitmap::BitmapFormat dstFormat)
	Blits a color value to the framebuffer performing alpha-blending as specified.
virtual void	blitFillWord(uint16_t colorValue, uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t dstWidth)
	Fills a part of the framebuffer using 16-bit fill without conversion.
virtual uint16_t	configurePartialFrameBuffer(const uint16_t x, const uint16_t y, const uint16_t width, const uint16_t height)
	Configures a partial framebuffer as current framebuffer.
virtual uint16_t *	copyFBRegionToMemory(Rect meAbs)
	Copies a region of the currently displayed framebuffer to memory.
virtual uint16_t *	copyFBRegionToMemory(Rect meAbs, uint16_t * dst, uint32_t stride)
	Copies a region of the currently displayed framebuffer to a buffer.
virtual void	drawDrawableInDynamicBitmap(Drawable & drawable, BitmapId bitmapId)
	Render a Drawable and its widgets into a dynamic bitmap.
virtual void	drawDrawableInDynamicBitmap(Drawable & drawable, BitmapId bitmapId, const Rect & rect)
	Render a Drawable and its widgets into a dynamic bitmap.
void	enableDMAAcceleration(const bool enable)
	Sets a flag to allow use of DMA operations to speed up drawing operations.
void	enableMCULoadCalculation(bool enabled)
	This method sets a flag that determines if generic HAL should calculate MCU load based on concrete MCU instrumentation.
virtual void	flushDMA()
	This function blocks until the DMA queue (containing BlitOps) is empty.
void	frontPorchEntered()
	Has to be called from within the LCD IRQ routine when the Front Porch Entry is reached.
uint16_t *	getAnimationStorage() const
	Gets the optional framebuffer used for animation storage.
LCD *	getAuxiliaryLCD()
	Get the auxiliary LCD class attached to the HAL instance if any.
virtual BlitOperations	getBlitCaps()
	Function for obtaining the blit capabilities of the concrete HAL implementation.
ButtonController *	getButtonController() const
	Gets the associated ButtonController.
uint32_t	getCPUCycles()
	Gets the current cycle counter.
uint16_t	getDisplayHeight() const
	Gets display height.
DisplayOrientation	getDisplayOrientation() const
	Gets the current display orientation.
uint16_t	getDisplayWidth() const
	Gets display width.
virtual DMAType	getDMAType()
	Function for obtaining the DMA type of the concrete DMA implementation.
uint8_t	getFingerSize() const
	Gets the finger size in pixels.
virtual FlashDataReader *	getFlashDataReader() const
	Gets the flash data reader.
FrameBufferAllocator *	getFrameBufferAllocator()
	Gets the framebuffer allocator.
FrameRefreshStrategy	getFrameRefreshStrategy() const
	Used internally by TouchGFX core to manage the timing and process of drawing into the framebuffer.
Gestures *	getGestures()
	Get the Gesture class attached to the HAL instance.
uint32_t	getLCDRefreshCount()
	Returns the number of VSync interrupts between the current drawing operation and the last drawing operation, i.e.
uint8_t	getMCULoadPct() const
	Gets the current MCU load.
virtual uint16_t	getTFTCurrentLine()
	Get the current line (Y) of the TFT controller.
int8_t	getTouchSampleRate() const
	Gets the number of ticks between each touch screen sample.
	HAL(DMA_Interface & dmaInterface, LCD & display, TouchController & touchCtrl, uint16_t width, uint16_t height)
	Initializes a new instance of the HAL class.
virtual void	initialize()
	This function initializes the HAL, DMA, TouchController, and interrupts.
void	lockDMAToFrontPorch(bool enableLock)
	Function to set whether the DMA transfers are locked to the TFT update cycle.
virtual uint16_t *	lockFrameBuffer()
	Waits for the framebuffer to become available for use (i.e.
virtual void	registerEventListener(UIEventListener & listener)
	Registers an event handler implementation with the underlying event system.
void	registerTaskDelayFunction(void(*)(uint16_t) delayF)
	Registers a function capable of delaying GUI task execution.
void	setAuxiliaryLCD(LCD * auxLCD)
	Set an auxiliary LCD class to be used for offscreen rendering.
void	setButtonController(ButtonController * btnCtrl)
	Stores a pointer to an instance of a specific implementation of a ButtonController.
virtual void	setDisplayOrientation(DisplayOrientation orientation)
	Sets the desired display orientation (landscape or portrait).
void	setDragThreshold(uint8_t value)
	Configure the threshold for reporting drag events.
void	setFingerSize(uint8_t size)
	Sets the finger size in pixels.
void	setFrameBufferAllocator(FrameBufferAllocator * allocator)
	Sets a framebuffer allocator.
virtual void	setFrameBufferStartAddresses(void frameBuffer, void doubleBuffer, void * animationStorage)
	Sets framebuffer start addresses.
void	setFrameRateCompensation(bool enabled)
	Enables or disables compensation for lost frames.
bool	setFrameRefreshStrategy(FrameRefreshStrategy s)
	Set a specific strategy for handling timing and mechanism of framebuffer drawing.
void	setMCUActive(bool active)
	Register if MCU is active by measuring cpu cycles.
void	setMCUInstrumentation(MCUInstrumentation * mcuInstr)
	Stores a pointer to an instance of an MCU specific instrumentation class.
void	setRenderingMethod(RenderingMethod method)
	Set current rendering method for cache maintenance.
void	setTouchSampleRate(int8_t sampleRateInTicks)
	Sets the number of ticks between each touch screen sample.
void	signalDMAInterrupt()
	Notify the framework that a DMA interrupt has occurred.
void	swapFrameBuffers()
	Swaps the two framebuffers.
virtual void	taskDelay(uint16_t ms)
	Delay GUI task execution by number of milliseconds.
virtual void	unlockFrameBuffer()
	Unlocks the framebuffer (MUST be called exactly once for each call to lockFrameBuffer()).
void	vSync()
	Called by the VSync interrupt.
virtual	~HAL()
	Finalizes an instance of the HAL class.
HAL *	getInstance()
	Gets the HAL instance.
LCD &	lcd()
	Gets a reference to the LCD.

Protected Functions inherited from HAL

virtual bool	beginFrame()
	Called when beginning to rendering a frame.
virtual void	endFrame()
	Called when a rendering pass is completed.
virtual void	FlushCache()
	Flush D-Cache.
uint16_t *	getClientFrameBuffer()
	Gets client framebuffer.
virtual void	InvalidateCache()
	Invalidate D-Cache.
virtual void	noTouch()
	Called by the touch driver to indicate that no touch is currently detected.
virtual void	tick()
	This function is called at each timer tick, depending on platform implementation.
virtual void	touch(int32_t x, int32_t y)
	Called by the touch driver to indicate a touch.

Public Attributes inherited from HAL

uint16_t	DISPLAY_HEIGHT
	The height of the LCD display in pixels.
DisplayRotation	DISPLAY_ROTATION
	The rotation from display to framebuffer.
uint16_t	DISPLAY_WIDTH
	The width of the LCD display in pixels.
uint16_t	FRAME_BUFFER_HEIGHT
	The height of the framebuffer in pixels.
uint16_t	FRAME_BUFFER_WIDTH
	The width of the framebuffer in pixels.
bool	USE_ANIMATION_STORAGE
	Is animation storage enabled?
bool	USE_DOUBLE_BUFFERING
	Is double buffering enabled?

Protected Attributes inherited from HAL

LCD *	auxiliaryLCD
	Auxiliary LCD class used to render Drawables into dynamic bitmaps.
ButtonController *	buttonController
	A reference to an optional ButtonController.
DMA_Interface &	dma
	A reference to the DMA interface.
uint8_t	fingerSize
	The radius of the finger in pixels.
uint16_t *	frameBuffer0
	Pointer to the first framebuffer.
uint16_t *	frameBuffer1
	Pointer to the second framebuffer.
uint16_t *	frameBuffer2
	Pointer to the optional third framebuffer used for animation storage.
FrameBufferAllocator *	frameBufferAllocator
	A reference to an optional FrameBufferAllocator.
bool	frameBufferUpdatedThisFrame
	True if something was drawn in the current frame.
Gestures	gestures
	Class for low-level interpretation of touch events.
LCD &	lcdRef
	A reference to the LCD.
bool	lockDMAToPorch
	Whether or not to lock DMA transfers with TFT porch signal.
MCUInstrumentation *	mcuInstrumentation
	A reference to an optional MCU instrumentation.
DisplayOrientation	nativeDisplayOrientation
	Contains the native display orientation. If desired orientation is different, apply rotation.
Rect	partialFrameBufferRect
	The region of the screen covered by the partial framebuffer.
FrameRefreshStrategy	refreshStrategy
	The selected display refresh strategy.
void(*	taskDelayFunc
	Pointer to a function that can delay GUI task for a number of milliseconds.
TouchController &	touchController
	A reference to the touch controller.
bool	isDrawing
	True if currently in the process of rendering a screen.

Public Functions Documentation

blockCopy

virtual bool blockCopy	(	void *RESTRICT	dest ,
		const void *RESTRICT	src ,
		uint32_t	numBytes
		)

This function performs a platform-specific memcpy, if supported by the hardware.

Parameters:

dest	Pointer to destination memory.
src	Pointer to source memory.
numBytes	Number of bytes to copy.

Returns:

true if the copy succeeded, false if copy was not performed.

Reimplements: touchgfx::HAL::blockCopy

copyScreenshotToClipboard

virtual void copyScreenshotToClipboard	(			)

Copies the screenshot to clipboard.

doSampleTouch

bool doSampleTouch	(	int32_t &	x ,		const
		int32_t &	y		const
		)	const

Samples the position of the mouse cursor.

Parameters:

x	The x coordinate.
y	The y coordinate.

Returns:

True if touch detected, false otherwise.

flushFrameBuffer

virtual void flushFrameBuffer	(			)

This function is called whenever the framework has performed a complete draw.

On some platforms, a local framebuffer needs to be pushed to the display through a SPI channel or similar. Implement that functionality here. This function is called whenever the framework has performed a complete draw.

Reimplements: touchgfx::HAL::flushFrameBuffer

flushFrameBuffer

virtual void flushFrameBuffer	(	const Rect &	rect	)

This function is called whenever the framework has performed a partial draw.

Parameters:

rect	The area of the screen that has been drawn, expressed in absolute coordinates.

Reimplements: touchgfx::HAL::flushFrameBuffer

getConsoleVisible

bool getConsoleVisible	(			)	const

Is console window visible?

Returns:

True if it is visible, false if it is hidden.

See also:

setConsoleVisible, getWindowVisible

getPrintFile

FILE * getPrintFile	(			)	const

Get file handle to output file (if set).

Returns:

A file handle to the file where output is copied to.

See also:

printToFile

getWindowVisible

bool getWindowVisible	(			)	const

Is the window visible?

Returns:

True if it is visible, false if it is hidden.

See also:

setWindowVisible, getConsoleVisible

HALSDL2

HALSDL2	(	DMA_Interface &	dma ,
		LCD &	lcd ,
		TouchController &	touchCtrl ,
		uint16_t	width ,
		uint16_t	height
		)

Initializes a new instance of the HALSDL2 class.

Parameters:

dma	Reference to DMA interface.
lcd	Reference to the LCD.
touchCtrl	Reference to Touch Controller driver.
width	Width of the display.
height	Height of the display.

loadSkin

void loadSkin	(	DisplayOrientation	orientation ,
		int	x ,
		int	y
		)

Loads a skin for a given display orientation that will be rendered in the simulator window with the the TouchGFX framebuffer placed inside the bitmap at the given coordinates.

Different bitmaps can be loaded in landscape and portrait mode. If the provided bitmap cannot be loaded, the TouchGFX framebuffer will be displayed as normal. If the png files contain areas with alpha < 255, this will be used to create a shaped window.

Parameters:

orientation	The orientation.
x	The x coordinate.
y	The y coordinate.

Note

The skins must be named "portrait.png" and "landscape.png" and placed inside the "simulator/" folder. The build process of the simulator will automatically copy the skins to the folder where the executable simulator is generated. When as skin is set, the entire framebuffer is rendered through SDL whenever there is a change. Without a skin, only the areas with changes is rendered through SDL.

printToFile

bool printToFile	(	const char *	filename	)

Also write touchgfx_printf() to a file.

The file will be generated (no appended to).

Parameters:

filename	The name of the file to write to (or null to stop writing to a file).

Returns:

True if the operation succeeds, false otherwise.

sampleKey

virtual bool sampleKey	(	uint8_t &	key	)

Sample key event from keyboard.

Parameters:

key	Output parameter that will be set to the key value if a key press was detected.

Returns:

True if a key press was detected and the "key" parameter is set to a value.

Reimplements: touchgfx::HAL::sampleKey

saveNextScreenshots

virtual void saveNextScreenshots	(	int	n	)

Copy the next N screenshots to disk.

On each screen update, the new screen is saved to disk.

Parameters:

n	Number of screenshots to save. These are added to any ongoing amount of screenshots in queue.

saveScreenshot

void saveScreenshot	(			)

Saves a screenshot to the default folder and default filename.

saveScreenshot

virtual void saveScreenshot	(	char *	folder ,
		char *	filename
		)

Saves a screenshot.

Parameters:

folder	Folder name to place the screenshot in.
filename	Filename to save the screenshot to.

sdl_init

virtual bool sdl_init	(	int	argcount ,
		char **	args
		)

Initializes SDL.

Parameters:

argcount	Number of arguments.
args	Arguments.

Returns:

True if init went well, false otherwise.

setConsoleVisible

void setConsoleVisible	(	bool	visible ,
		bool	redrawWindow =true
		)

Change visibility of console window (hidden vs.

shown).

Parameters:

visible	Should the window be visible?
redrawWindow	(Optional) Should the window be redrawn? Default is true.

See also:

setWindowVisible, getConsoleVisible

setVsyncInterval

void setVsyncInterval	(	float	ms	)

Sets vsync interval for simulating same tick speed as the real hardware.

Due to limitations in the granularity of SDL, the generated ticks in the simulator might not occur at the exact time, but accumulated over several ticks, the precision is very good.

Parameters:

ms	The milliseconds between ticks.

Note

That you can also use HAL::setFrameRateCompensation() in the simulator. The effect of this can easily be demonstrated by dragging the console output window of the simulator (when running from Visual Studio) as this will pause the SDL and generate a lot of ticks when the console window is released. Beware that since the missed vsyncs are accumulated in an 8 bit counter, only up to 255 ticks may be missed, so at VsyncInterval = 16.6667, dragging the windows for more than 255 * 16.6667ms = 4250ms = 4.25s will not generate all the ticks that were actually missed. This situation is, however, not very realistic, as normally just a couple of vsyncs are skipped.

setWindowVisible

void setWindowVisible	(	bool	visible ,
		bool	redrawWindow =true
		)

Change visibility of window (hidden vs.

shown) as well as (due to backward compatibility) the visibility of the console window.

Parameters:

visible	Should the window be visible?
redrawWindow	(Optional) Should the window be redrawn? Default is true.

See also:

getWindowVisible, setConsoleVisible

taskEntry

virtual void taskEntry	(			)

Main event loop.

Will wait for VSYNC signal, and then process next frame. Call this function from your GUI task.

Note

This function never returns!

Reimplements: touchgfx::HAL::taskEntry

doRotate

static uint8_t * doRotate	(	uint8_t *	src	)

Rotates a framebuffer if the display is rotated.

Parameters:

src	The framebuffer.

Returns:

Null if it fails, else a pointer to an uint8_t.

getArgv

static char ** getArgv	(	int *	argc	)

Gets the argc and argv for a Windows program.

Parameters:

argc	Pointer to where to store number of arguments.

Returns:

The argv list of arguments.

getWindowTitle

static const char * getWindowTitle	(			)

Gets window title.

Returns:

null "TouchGFX simulator" unless set to something else using setWindowTitle().

See also:

setWindowTitle

isSingleStepping

static bool isSingleStepping	(			)

Is single stepping.

Returns:

True if single stepping, false if not.

See also:

setSingleStepping

scaleTo24bpp

static uint8_t * scaleTo24bpp	(	uint16_t *	src ,
		Bitmap::BitmapFormat	format
		)

Scale framebuffer to 24bpp.

The format of the framebuffer (src) is given in parameter format. The result is placed in the pre-allocated memory pointed to by parameter dst. If the framebuffer is in format Bitmap::RGB888, parameter dst is not used and the parameter src is simply returned.

Parameters:

src	The framebuffer.
format	Describes the format of the framebuffer (lcd().framebufferFormat()).

Returns:

Null if it fails, else a pointer to an uint8_t.

setSingleStepping

static void setSingleStepping	(	bool	singleStepping =true	)

Single stepping enable/disable.

When single stepping is enabled, F10 will execute one tick and F9 will disable single stepping.

Parameters:

singleStepping	(Optional) True to pause the simulation and start single stepping.

See also:

isSingleStepping

setWindowTitle

static void setWindowTitle	(	const char *	title	)

Sets window title.

Sets window title of the TouchGFX simulator.

Parameters:

title	The title, if null the original "TouchGFX simulator" will be used.

See also:

getWindowTitle

singleStep

static void singleStep	(	uint16_t	steps =1	)

Single step a number of steps.

Only works if single stepping is already enabled.

Parameters:

steps	(Optional) The steps Default is 1 step.

See also:

setSingleStepping, isSingleStepping

Protected Functions Documentation

configureInterrupts

virtual void configureInterrupts	(			)

Configures the interrupts relevant for TouchGFX.

This primarily entails setting the interrupt priorities for the DMA and LCD interrupts.

Reimplements: touchgfx::HAL::configureInterrupts

configureLCDInterrupt

virtual void configureLCDInterrupt	(			)

Configures LCD interrupt.

disableInterrupts

virtual void disableInterrupts	(			)

Disables the DMA and LCD interrupts.

Reimplements: touchgfx::HAL::disableInterrupts

enableInterrupts

virtual void enableInterrupts	(			)

Enables the DMA and LCD interrupts.

Reimplements: touchgfx::HAL::enableInterrupts

enableLCDControllerInterrupt

virtual void enableLCDControllerInterrupt	(			)

Enables the LCD interrupt.

Reimplements: touchgfx::HAL::enableLCDControllerInterrupt

getTFTFrameBuffer

virtual uint16_t * getTFTFrameBuffer	(			)	const

Gets TFT framebuffer.

Returns:

null if it fails, else the TFT framebuffer.

Reimplements: touchgfx::HAL::getTFTFrameBuffer

performDisplayOrientationChange

virtual void performDisplayOrientationChange	(			)

Perform the actual display orientation change.

Reimplements: touchgfx::HAL::performDisplayOrientationChange

renderLCD_FrameBufferToMemory

virtual void renderLCD_FrameBufferToMemory	(	const Rect &	_rectToUpdate ,
		uint8_t *	frameBuffer
		)

Update framebuffer using an SDL Surface.

Parameters:

_rectToUpdate	Area to update.
frameBuffer	Target framebuffer.

setTFTFrameBuffer

virtual void setTFTFrameBuffer	(	uint16_t *	addr	)

Sets TFT framebuffer.

Parameters:

addr	The address of the TFT framebuffer.

Reimplements: touchgfx::HAL::setTFTFrameBuffer