GfxFuncs

Overview

Related Modules:

Display

Description:

Defines pointers to the hardware acceleration driver functions.

Summary

Data Fields

Variable Name Description
InitGfx )(void) int32_t( Initializes hardware acceleration.
DeinitGfx )(void) int32_t( Deinitializes hardware acceleration.
FillRect )(ISurface surface, IRect rect, uint32_t color, GfxOpt opt) int32_t( Fills a rectangle with a given color on the canvas.
DrawRectangle )(ISurface surface, Rectangle rect, uint32_t color, GfxOpt opt) int32_t( Draws a rectangle with a given color on the canvas.
DrawLine )(ISurface surface, ILine line, GfxOpt opt) int32_t( Draws a straight line with a given color on the canvas.
DrawCircle )(ISurface surface, ICircle circle, GfxOpt opt) int32_t( Draws a circle with a specified center and radius on the canvas using a given color.
Blit )(ISurface srcSurface, IRect srcRect, ISurface dstSurface, IRect dstRect) int32_t( Blits bitmaps.
Sync )(void) int32_t( Synchronizes hardware acceleration.

Details

Field Documentation

Blit


1. int32_t(* GfxFuncs::Blit) ([ISurface]($api-api-SmartVision-Devices-ISurface.md) *srcSurface, [IRect]($api-api-SmartVision-Devices-IRect.md) *srcRect, [ISurface]($api-api-SmartVision-Devices-ISurface.md) *dstSurface, [IRect]($api-api-SmartVision-Devices-IRect.md) *dstRect)

Description:

Blits bitmaps.

During bit blit, color space conversion (CSC), scaling, and rotation can be implemented.

Parameters:

Name Description
srcSurface Indicates the pointer to the source bitmap.
srcRect Indicates the pointer to the rectangle of the source bitmap.
dstSurface Indicates the pointer to the destination bitmap.
dstRect Indicates the pointer to the rectangle of the destination bitmap.

Returns:

Returns 0 if the operation is successful; returns an error code defined in DispErrCode otherwise.

See also:

Blit3

DeinitGfx


1. int32_t(* GfxFuncs::DeinitGfx) (void)

Description:

Deinitializes hardware acceleration.

Returns:

Returns 0 if the operation is successful; returns an error code defined in DispErrCode otherwise.

See also:

InitGfx

DrawCircle


1. int32_t(* GfxFuncs::DrawCircle) ([ISurface]($api-api-SmartVision-Devices-ISurface.md) *surface, [ICircle]($api-api-SmartVision-Devices-ICircle.md) *circle, [GfxOpt]($api-api-SmartVision-Devices-GfxOpt.md) *opt)

Description:

Draws a circle with a specified center and radius on the canvas using a given color.

Parameters:

Name Description
surface Indicates the pointer to the canvas.
circle Indicates the pointer to the circle to draw.
opt Indicates the pointer to the hardware acceleration option.

Returns:

Returns 0 if the operation is successful; returns an error code defined in DispErrCode otherwise.

DrawLine


1. int32_t(* GfxFuncs::DrawLine) ([ISurface]($api-api-SmartVision-Devices-ISurface.md) *surface, [ILine]($api-api-SmartVision-Devices-ILine.md) *line, [GfxOpt]($api-api-SmartVision-Devices-GfxOpt.md) *opt)

Description:

Draws a straight line with a given color on the canvas.

Parameters:

Name Description
surface Indicates the pointer to the canvas.
line Indicates the pointer to the line to draw.
opt Indicates the pointer to the hardware acceleration option.

Returns:

Returns 0 if the operation is successful; returns an error code defined in DispErrCode otherwise.

DrawRectangle


1. int32_t(* GfxFuncs::DrawRectangle) ([ISurface]($api-api-SmartVision-Devices-ISurface.md) *surface, [Rectangle]($api-api-SmartVision-Devices-Rectangle.md) *rect, uint32_t color, [GfxOpt]($api-api-SmartVision-Devices-GfxOpt.md) *opt)

Description:

Draws a rectangle with a given color on the canvas.

Parameters:

Name Description
surface Indicates the pointer to the canvas.
rect Indicates the pointer to the rectangle to draw.
color Indicates the color to draw.
opt Indicates the pointer to the hardware acceleration option.

Returns:

Returns 0 if the operation is successful; returns an error code defined in DispErrCode otherwise.

See also:

FillRect

FillRect


1. int32_t(* GfxFuncs::FillRect) ([ISurface]($api-api-SmartVision-Devices-ISurface.md) *surface, [IRect]($api-api-SmartVision-Devices-IRect.md) *rect, uint32_t color, [GfxOpt]($api-api-SmartVision-Devices-GfxOpt.md) *opt)

Description:

Fills a rectangle with a given color on the canvas.

Parameters:

Name Description
surface Indicates the pointer to the canvas.
rect Indicates the pointer to the rectangle to fill.
color Indicates the color to fill.
opt Indicates the pointer to the hardware acceleration option.

Returns:

Returns 0 if the operation is successful; returns an error code defined in DispErrCode otherwise.

InitGfx


1. int32_t(* GfxFuncs::InitGfx) (void)

Description:

Initializes hardware acceleration.

Returns:

Returns 0 if the operation is successful; returns an error code defined in DispErrCode otherwise.

See also:

DeinitGfx

Sync


1. int32_t(* GfxFuncs::Sync) (void)

Description:

Synchronizes hardware acceleration.

Use this function for hardware acceleration synchronization when hardware acceleration is used to draw and blit bitmaps. This function blocks the process until hardware acceleration is complete.

Parameters:

Name Description
timeOut Indicates the timeout duration for hardware acceleration synchronization. The value 0 indicates no timeout, so the process waits until hardware acceleration is complete.

Returns:

Returns 0 if the operation is successful; returns an error code defined in DispErrCode otherwise.