draw

draw

Synopsis




void                ucil_convert_color                  (ucil_color_t *src,
                                                         ucil_color_t *dest);
void                ucil_set_pixel                      (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color,
                                                         int x,
                                                         int y);
void                ucil_draw_line                      (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color,
                                                         int x1,
                                                         int y1,
                                                         int x2,
                                                         int y2);
void                ucil_draw_rect                      (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color,
                                                         int x1,
                                                         int y1,
                                                         int x2,
                                                         int y2);
void                ucil_fill                           (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color);
void                ucil_draw_box                       (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color,
                                                         int x1,
                                                         int y1,
                                                         int x2,
                                                         int y2);

Description

Details

ucil_convert_color ()

void                ucil_convert_color                  (ucil_color_t *src,
                                                         ucil_color_t *dest);

Convert colors between colorspaces. The colorspace field of dest needs to be set to the target colorspace, like in this example:

src.colorspace = UCIL_COLORSPACE_RGB24;
src.rgb24.r = 0xff;
src.rgb24.g = 0xff;
src.rgb24.b = 0xff;
dest.colorspace = UCIL_COLORSPACE_YUV;
ucil_convert_color( &dest, &src );
 

src : source color
dest : target color

ucil_set_pixel ()

void                ucil_set_pixel                      (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color,
                                                         int x,
                                                         int y);

Draws a pixel on the data buffer.

data_buffer : target buffer
color : an ucil_color_t. The colorspace of the color has to match the colorspace of the data_buffer.
x : x position
y : y position

ucil_draw_line ()

void                ucil_draw_line                      (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color,
                                                         int x1,
                                                         int y1,
                                                         int x2,
                                                         int y2);

Draws a line on the data buffer. The endpoints are clipped to the buffer dimensions

data_buffer : target buffer
color : an ucil_color_t. The colorspace of the color has to match the colorspace of the data_buffer.
x1 : starting point of the line ( x position )
y1 : starting point of the line ( y position )
x2 : endpoint of the line ( x position )
y2 : endpoint of the line ( y position )

ucil_draw_rect ()

void                ucil_draw_rect                      (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color,
                                                         int x1,
                                                         int y1,
                                                         int x2,
                                                         int y2);

Draws a rectangle filled with color.

data_buffer : target buffer
color : an ucil_color_t. The colorspace of the color has to match the colorspace of the data_buffer.
x1 : starting point of the rectangle ( x position )
y1 : starting point of the rectangle ( y position )
x2 : endpoint of the rectangle ( x position )
y2 : endpoint of the rectangle ( y position )

ucil_fill ()

void                ucil_fill                           (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color);

Fill the buffer with a color.

data_buffer : target buffer
color : an ucil_color_t. The colorspace of the color has to match the colorspace of the data_buffer.

ucil_draw_box ()

void                ucil_draw_box                       (unicap_data_buffer_t *data_buffer,
                                                         ucil_color_t *color,
                                                         int x1,
                                                         int y1,
                                                         int x2,
                                                         int y2);

Draws a box

data_buffer : target buffer
color : an ucil_color_t. The colorspace of the color has to match the colorspace of the data_buffer.
x1 : starting point of the box ( x position )
y1 : starting point of the box ( y position )
x2 : endpoint of the box ( x position )
y2 : endpoint of the box ( y position )