EMSTATUS GLIB_drawRectFilled(const GLIB_Context *pContext,
GLIB_Rectangle *pRect)
{
EMSTATUS status;
GLIB_normalizeRect(pRect);
GLIB_Rectangle tmpRectangle;
tmpRectangle = *pRect;
/* Clip rectangle if necessary */
if (tmpRectangle.xMin < pContext->clippingRegion.xMin)
{
tmpRectangle.xMin = pContext->clippingRegion.xMin;
}
if (tmpRectangle.xMax > pContext->clippingRegion.xMax)
{
tmpRectangle.xMax = pContext->clippingRegion.xMax;
}
if (tmpRectangle.yMin < pContext->clippingRegion.yMin)
{
tmpRectangle.yMin = pContext->clippingRegion.yMin;
}
if (tmpRectangle.yMax > pContext->clippingRegion.yMax)
{
tmpRectangle.yMax = pContext->clippingRegion.yMax;
}
/* Draw filled rectangle */
uint8_t red;
uint8_t green;
uint8_t blue;
GLIB_colorTranslate24bpp(pContext->foregroundColor, &red, &green, &blue);
uint16_t width;
uint16_t height;
width = tmpRectangle.xMax - tmpRectangle.xMin + 1;
height = tmpRectangle.yMax - tmpRectangle.yMin + 1;
status = DMD_setClippingArea(tmpRectangle.xMin, tmpRectangle.yMin, width, height);
if (status != 0) return status;
status = DMD_writeColor(0, 0, red, green, blue, width * height);
if (status != 0) return status;
status = GLIB_resetDisplayClippingArea(pContext);
if (status != 0) return status;
return GLIB_OK;
}
EMSTATUS GLIB_drawBitmap(const GLIB_Context *pContext, uint16_t x, uint16_t y,
uint16_t width, uint16_t height, uint8_t *picData)
{
EMSTATUS status;
/* Set display clipping area for bitmap */
status = DMD_setClippingArea(x, y, width, height);
if (status != DMD_OK) return status;
/* Write bitmap to display */
status = DMD_writeData(0, 0, picData, width * height);
if (status != DMD_OK) return status;
/* Reset display clipping area to the whole display */
GLIB_resetDisplayClippingArea(pContext);
if (status != GLIB_OK) return status;
return GLIB_OK;
}
/**************************************************************************//**
* @brief Clears/updates entire background ready to be drawn
*****************************************************************************/
void SLIDES_showBMP(char *fileName)
{
int32_t xCursor;
int32_t yCursor;
uint32_t pixelsRead;
uint32_t nPixelsPerRow;
uint32_t nRows;
EMSTATUS status;
/* Open file */
if (f_open(&BMPfile, fileName, FA_READ) != FR_OK)
{
SLIDES_showError(true, "Fatal:\n Failed to open file:\n %s", fileName);
}
/* Initialize BMP decoder */
if (BMP_init(palette, 1024, &SLIDES_readData) != BMP_OK)
{
SLIDES_showError(true, "Fatal:\n Failed to init BMP library.");
}
/* Read headers */
if ((status = BMP_reset()) != BMP_OK)
{
SLIDES_showError(false, "Info:\n %s is not a BMP file", fileName);
goto cleanup;
}
/* Get important BMP data */
nPixelsPerRow = BMP_getWidth();
nRows = BMP_getHeight();
yCursor = nRows - 1;
xCursor = 0;
/* Check size of BMP */
if ((nPixelsPerRow > 320) || (nRows > 240))
{
SLIDES_showError(false, "Info:\n %s is larger than 320x240.", fileName);
}
/* Set clipping region */
DMD_setClippingArea(0, 0, nPixelsPerRow, nRows);
/* Read in and draw row for row */
while (yCursor >= 0)
{
/* Read in row buffer */
status = BMP_readRgbData(rgbBuffer, RGB_BUFFER_SIZE, &pixelsRead);
if (status != BMP_OK || pixelsRead == 0)
break;
/* Draw row buffer. Remember, BMP is stored bottom-up */
status = DMD_writeData(xCursor, yCursor, rgbBuffer, pixelsRead);
if (status != DMD_OK)
break;
/* Update cursor */
xCursor += pixelsRead;
if (xCursor >= (int)nPixelsPerRow)
{
yCursor -= xCursor / nPixelsPerRow;
xCursor = xCursor % nPixelsPerRow;
}
}
/* Reset clipping area in DMD driver */
status = GLIB_resetDisplayClippingArea(&gc);
if (status != 0)
return;
cleanup:
/* Close the file */
f_close(&BMPfile);
}
