TouchGFX + 0/4 examples
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STM32469I-Discovery
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CodeScopeSTM32 Libraries and SamplesTouchGFXtouchgfx::DMA_Interface

touchgfx::DMA_Interface class

@class DMA_Interface DMA.hpp touchgfx/hal/DMA.hpp DMA_Interface provides basic functionality and structure for processing "blit" operations using DMA. DMA_Interface provides basic functionality and structure for processing "blit" operations using DMA.

Syntax

class DMA_Interface;
Implemented in DMA.hpp:212

Fields

queue

No summary provided. Read more...

isRunning

No summary provided. Read more...

isAllowed

No summary provided. Read more...

Methods

getBlitCaps()

@fn virtual BlitOperations DMA_Interface::getBlitCaps() = 0; Gets the blit capabilities of this DMA. Gets the blit capabilities of this DMA. Read more...

addToQueue()

@fn virtual void DMA_Interface::addToQueue(const BlitOp& op); Inserts a BlitOp for processing. Inserts a BlitOp for processing. This also potentially starts the DMA controller, if not already running. Read more...

flush()

@fn virtual void DMA_Interface::flush() This function blocks until all DMA transfers in the queue have been completed. This function blocks until all DMA transfers in the queue have been completed. Read more...

initialize()

@fn virtual void DMA_Interface::initialize() Perform initialization. Perform initialization. Does nothing in this base class. Read more...

isDMARunning()

@fn bool DMA_Interface::isDMARunning() Query if the DMA is running. Query if the DMA is running. Read more...

setAllowed()

@fn void DMA_Interface::setAllowed(bool allowed) Sets whether or not a DMA operation is allowed to begin. Sets whether or not a DMA operation is allowed to begin. Used in single-buffering to avoid changing the frame buffer while display is being updated. Read more...

getAllowed() const

@fn bool DMA_Interface::getAllowed() const Gets whether a DMA operation is allowed to begin. Gets whether a DMA operation is allowed to begin. Used in single-buffering to avoid changing the frame buffer while display is being updated. Read more...

start()

@fn virtual void DMA_Interface::start(); Signals that DMA transfers can start. Signals that DMA transfers can start. If any elements are in the queue, start it. Read more...

signalDMAInterrupt()

@fn virtual void DMA_Interface::signalDMAInterrupt() = 0; This function is called automatically by the framework when a DMA interrupt has been received. This function is called automatically by the framework when a DMA interrupt has been received. Read more...

waitForFrameBufferSemaphore()

@fn virtual void DMA_Interface::waitForFrameBufferSemaphore(); Waits until frame buffer semaphore is available. Waits until frame buffer semaphore is available (i.e. neither DMA or application is accessing the frame buffer). Read more...

isDmaQueueEmpty()

@fn uint8_t DMA_Interface::isDmaQueueEmpty(); Query if the DMA queue is empty. Query if the DMA queue is empty. Read more...

isDmaQueueFull()

@fn uint8_t DMA_Interface::isDmaQueueFull(); Query if the DMA queue is full. Query if the DMA queue is full. Read more...

execute()

@fn virtual void DMA_Interface::execute(); Performs a queued blit-op. Performs a queued blit-op. Read more...

executeCompleted()

@fn virtual void DMA_Interface::executeCompleted(); To be called when blit-op has been performed. To be called when blit-op has been performed. Read more...

seedExecution()

@fn virtual void DMA_Interface::seedExecution(); Called when elements are added to the DMA-queue. Called when elements are added to the DMA-queue. Read more...

setupDataCopy()

@fn virtual void DMA_Interface::setupDataCopy(const BlitOp& blitOp) = 0; Configures blit-op hardware for a 2D copy as specified by blitOp. Configures blit-op hardware for a 2D copy as specified by blitOp. Read more...

setupDataFill()

@fn virtual void DMA_Interface::setupDataFill(const BlitOp& blitOp) = 0; Configures blit-op hardware for a 2D fill as specified by blitOp. Configures blit-op hardware for a 2D fill as specified by blitOp. Read more...

enableAlpha()

@fn virtual void DMA_Interface::enableAlpha(uint8_t alpha); Configures blit-op hardware for alpha-blending. Configures blit-op hardware for alpha-blending. Read more...

disableAlpha()

@fn virtual void DMA_Interface::disableAlpha(); Configures blit-op hardware for solid operation (no alpha-blending). Configures blit-op hardware for solid operation (no alpha-blending). Read more...

enableCopyWithTransparentPixels()

@fn virtual void DMA_Interface::enableCopyWithTransparentPixels(uint8_t alpha); Configures blit-op hardware for alpha-blending while simultaneously skipping transparent pixels. Configures blit-op hardware for alpha-blending while simultaneously skipping transparent pixels. Read more...

Examples

touchgfx::DMA_Interface is referenced by 4 libraries and example projects.

References

LocationReferrerScopeText
DMA.hpp:212
class DMA_Interface
DMA.hpp:24
class DMA_Interface;
DMA.hpp:37
friend class DMA_Interface;
HAL.hpp:58touchgfx::HAL::HAL()
HAL(DMA_Interface& dmaInterface, LCD& display, TouchController& touchCtrl, uint16_t width, uint16_t height) :
HAL.hpp:1228touchgfx::HAL::dmatouchgfx::HAL
DMA_Interface& dma; ///< A reference to the DMA interface.
TouchGFXInit.hpp:40touchgfx::getHAL()::dmatouchgfx::getHAL()
HAL& getHAL(DMA_Interface& dma, LCD& display, TouchController& tc, int16_t width, int16_t height)
TouchGFXInit.hpp:83touchgfx::touchgfx_generic_init()::dmatouchgfx::touchgfx_generic_init()
HAL& touchgfx_generic_init(DMA_Interface& dma, LCD& display, TouchController& tc, int16_t width, int16_t height,

Type Use

Variables of touchgfx::DMA_Interface type
touchgfx::getHAL()::dma
touchgfx::touchgfx_generic_init()::dma
all items filtered out
touchgfx::DMA_Interface
touchgfx::DMA_Interface
all items filtered out