David Smart
Library to control a Graphics TFT connected to 4-wire SPI - revised for the Raio RA8875 Display Controller.
Dependents: FRDM_RA8875_mPaint RA8875_Demo RA8875_KeyPadDemo SignalGenerator ... more
Fork of
SPI_TFT
by 
Peter Drescher
See Components - RA8875 Based Display
Enhanced touch-screen support - where it previous supported both the Resistive Touch and Capacitive Touch based on the FT5206 Touch Controller, now it also has support for the GSL1680 Touch Controller.
Offline Help Manual (Windows chm)
/media/uploads/WiredHome/ra8875.zip.bin (download, rename to .zip and unzip)
Diff: RA8875.cpp
- Revision:
- 163:17526689a3ed
- Parent:
- 162:a2d7f1988711
- Child:
- 164:76edd7d9cb68
--- a/RA8875.cpp Mon Feb 11 03:44:42 2019 +0000
+++ b/RA8875.cpp Wed Feb 13 04:20:12 2019 +0000
@@ -101,6 +101,75 @@
"external abort", ///< during an idle callback, the user code initiated an abort
};
+typedef struct {
+ uint8_t b;
+ uint8_t g;
+ uint8_t r;
+ uint8_t a;
+} rgbTrio_t;
+
+static const rgbTrio_t WebColorPalette[] = {
+ {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x33,0xFF}, {0x00,0x00,0x66,0xFF}, {0x00,0x00,0x99,0xFF}, {0x00,0x00,0xCC,0xFF}, {0x00,0x00,0xFF,0xFF},
+ {0x00,0x33,0x00,0xFF}, {0x00,0x33,0x33,0xFF}, {0x00,0x33,0x66,0xFF}, {0x00,0x33,0x99,0xFF}, {0x00,0x33,0xCC,0xFF}, {0x00,0x33,0xFF,0xFF},
+ {0x00,0x66,0x00,0xFF}, {0x00,0x66,0x33,0xFF}, {0x00,0x66,0x66,0xFF}, {0x00,0x66,0x99,0xFF}, {0x00,0x66,0xCC,0xFF}, {0x00,0x66,0xFF,0xFF},
+ {0x00,0x99,0x00,0xFF}, {0x00,0x99,0x33,0xFF}, {0x00,0x99,0x66,0xFF}, {0x00,0x99,0x99,0xFF}, {0x00,0x99,0xCC,0xFF}, {0x00,0x99,0xFF,0xFF},
+ {0x00,0xCC,0x00,0xFF}, {0x00,0xCC,0x33,0xFF}, {0x00,0xCC,0x66,0xFF}, {0x00,0xCC,0x99,0xFF}, {0x00,0xCC,0xCC,0xFF}, {0x00,0xCC,0xFF,0xFF},
+ {0x00,0xFF,0x00,0xFF}, {0x00,0xFF,0x33,0xFF}, {0x00,0xFF,0x66,0xFF}, {0x00,0xFF,0x99,0xFF}, {0x00,0xFF,0xCC,0xFF}, {0x00,0xFF,0xFF,0xFF},
+ {0x33,0x00,0x00,0xFF}, {0x33,0x00,0x33,0xFF}, {0x33,0x00,0x66,0xFF}, {0x33,0x00,0x99,0xFF}, {0x33,0x00,0xCC,0xFF}, {0x33,0x00,0xFF,0xFF},
+ {0x33,0x33,0x00,0xFF}, {0x33,0x33,0x33,0xFF}, {0x33,0x33,0x66,0xFF}, {0x33,0x33,0x99,0xFF}, {0x33,0x33,0xCC,0xFF}, {0x33,0x33,0xFF,0xFF},
+ {0x33,0x66,0x00,0xFF}, {0x33,0x66,0x33,0xFF}, {0x33,0x66,0x66,0xFF}, {0x33,0x66,0x99,0xFF}, {0x33,0x66,0xCC,0xFF}, {0x33,0x66,0xFF,0xFF},
+ {0x33,0x99,0x00,0xFF}, {0x33,0x99,0x33,0xFF}, {0x33,0x99,0x66,0xFF}, {0x33,0x99,0x99,0xFF}, {0x33,0x99,0xCC,0xFF}, {0x33,0x99,0xFF,0xFF},
+ {0x33,0xCC,0x00,0xFF}, {0x33,0xCC,0x33,0xFF}, {0x33,0xCC,0x66,0xFF}, {0x33,0xCC,0x99,0xFF}, {0x33,0xCC,0xCC,0xFF}, {0x33,0xCC,0xFF,0xFF},
+ {0x33,0xFF,0x00,0xFF}, {0x33,0xFF,0x33,0xFF}, {0x33,0xFF,0x66,0xFF}, {0x33,0xFF,0x99,0xFF}, {0x33,0xFF,0xCC,0xFF}, {0x33,0xFF,0xFF,0xFF},
+ {0x66,0x00,0x00,0xFF}, {0x66,0x00,0x33,0xFF}, {0x66,0x00,0x66,0xFF}, {0x66,0x00,0x99,0xFF}, {0x66,0x00,0xCC,0xFF}, {0x66,0x00,0xFF,0xFF},
+ {0x66,0x33,0x00,0xFF}, {0x66,0x33,0x33,0xFF}, {0x66,0x33,0x66,0xFF}, {0x66,0x33,0x99,0xFF}, {0x66,0x33,0xCC,0xFF}, {0x66,0x33,0xFF,0xFF},
+ {0x66,0x66,0x00,0xFF}, {0x66,0x66,0x33,0xFF}, {0x66,0x66,0x66,0xFF}, {0x66,0x66,0x99,0xFF}, {0x66,0x66,0xCC,0xFF}, {0x66,0x66,0xFF,0xFF},
+ {0x66,0x99,0x00,0xFF}, {0x66,0x99,0x33,0xFF}, {0x66,0x99,0x66,0xFF}, {0x66,0x99,0x99,0xFF}, {0x66,0x99,0xCC,0xFF}, {0x66,0x99,0xFF,0xFF},
+ {0x66,0xCC,0x00,0xFF}, {0x66,0xCC,0x33,0xFF}, {0x66,0xCC,0x66,0xFF}, {0x66,0xCC,0x99,0xFF}, {0x66,0xCC,0xCC,0xFF}, {0x66,0xCC,0xFF,0xFF},
+ {0x66,0xFF,0x00,0xFF}, {0x66,0xFF,0x33,0xFF}, {0x66,0xFF,0x66,0xFF}, {0x66,0xFF,0x99,0xFF}, {0x66,0xFF,0xCC,0xFF}, {0x66,0xFF,0xFF,0xFF},
+ {0x99,0x00,0x00,0xFF}, {0x99,0x00,0x33,0xFF}, {0x99,0x00,0x66,0xFF}, {0x99,0x00,0x99,0xFF}, {0x99,0x00,0xCC,0xFF}, {0x99,0x00,0xFF,0xFF},
+ {0x99,0x33,0x00,0xFF}, {0x99,0x33,0x33,0xFF}, {0x99,0x33,0x66,0xFF}, {0x99,0x33,0x99,0xFF}, {0x99,0x33,0xCC,0xFF}, {0x99,0x33,0xFF,0xFF},
+ {0x99,0x66,0x00,0xFF}, {0x99,0x66,0x33,0xFF}, {0x99,0x66,0x66,0xFF}, {0x99,0x66,0x99,0xFF}, {0x99,0x66,0xCC,0xFF}, {0x99,0x66,0xFF,0xFF},
+ {0x99,0x99,0x00,0xFF}, {0x99,0x99,0x33,0xFF}, {0x99,0x99,0x66,0xFF}, {0x99,0x99,0x99,0xFF}, {0x99,0x99,0xCC,0xFF}, {0x99,0x99,0xFF,0xFF},
+ {0x99,0xCC,0x00,0xFF}, {0x99,0xCC,0x33,0xFF}, {0x99,0xCC,0x66,0xFF}, {0x99,0xCC,0x99,0xFF}, {0x99,0xCC,0xCC,0xFF}, {0x99,0xCC,0xFF,0xFF},
+ {0x99,0xFF,0x00,0xFF}, {0x99,0xFF,0x33,0xFF}, {0x99,0xFF,0x66,0xFF}, {0x99,0xFF,0x99,0xFF}, {0x99,0xFF,0xCC,0xFF}, {0x99,0xFF,0xFF,0xFF},
+ {0xCC,0x00,0x00,0xFF}, {0xCC,0x00,0x33,0xFF}, {0xCC,0x00,0x66,0xFF}, {0xCC,0x00,0x99,0xFF}, {0xCC,0x00,0xCC,0xFF}, {0xCC,0x00,0xFF,0xFF},
+ {0xCC,0x33,0x00,0xFF}, {0xCC,0x33,0x33,0xFF}, {0xCC,0x33,0x66,0xFF}, {0xCC,0x33,0x99,0xFF}, {0xCC,0x33,0xCC,0xFF}, {0xCC,0x33,0xFF,0xFF},
+ {0xCC,0x66,0x00,0xFF}, {0xCC,0x66,0x33,0xFF}, {0xCC,0x66,0x66,0xFF}, {0xCC,0x66,0x99,0xFF}, {0xCC,0x66,0xCC,0xFF}, {0xCC,0x66,0xFF,0xFF},
+ {0xCC,0x99,0x00,0xFF}, {0xCC,0x99,0x33,0xFF}, {0xCC,0x99,0x66,0xFF}, {0xCC,0x99,0x99,0xFF}, {0xCC,0x99,0xCC,0xFF}, {0xCC,0x99,0xFF,0xFF},
+ {0xCC,0xCC,0x00,0xFF}, {0xCC,0xCC,0x33,0xFF}, {0xCC,0xCC,0x66,0xFF}, {0xCC,0xCC,0x99,0xFF}, {0xCC,0xCC,0xCC,0xFF}, {0xCC,0xCC,0xFF,0xFF},
+ {0xCC,0xFF,0x00,0xFF}, {0xCC,0xFF,0x33,0xFF}, {0xCC,0xFF,0x66,0xFF}, {0xCC,0xFF,0x99,0xFF}, {0xCC,0xFF,0xCC,0xFF}, {0xCC,0xFF,0xFF,0xFF},
+ {0xFF,0x00,0x00,0xFF}, {0xFF,0x00,0x33,0xFF}, {0xFF,0x00,0x66,0xFF}, {0xFF,0x00,0x99,0xFF}, {0xFF,0x00,0xCC,0xFF}, {0xFF,0x00,0xFF,0xFF},
+ {0xFF,0x33,0x00,0xFF}, {0xFF,0x33,0x33,0xFF}, {0xFF,0x33,0x66,0xFF}, {0xFF,0x33,0x99,0xFF}, {0xFF,0x33,0xCC,0xFF}, {0xFF,0x33,0xFF,0xFF},
+ {0xFF,0x66,0x00,0xFF}, {0xFF,0x66,0x33,0xFF}, {0xFF,0x66,0x66,0xFF}, {0xFF,0x66,0x99,0xFF}, {0xFF,0x66,0xCC,0xFF}, {0xFF,0x66,0xFF,0xFF},
+ {0xFF,0x99,0x00,0xFF}, {0xFF,0x99,0x33,0xFF}, {0xFF,0x99,0x66,0xFF}, {0xFF,0x99,0x99,0xFF}, {0xFF,0x99,0xCC,0xFF}, {0xFF,0x99,0xFF,0xFF},
+ {0xFF,0xCC,0x00,0xFF}, {0xFF,0xCC,0x33,0xFF}, {0xFF,0xCC,0x66,0xFF}, {0xFF,0xCC,0x99,0xFF}, {0xFF,0xCC,0xCC,0xFF}, {0xFF,0xCC,0xFF,0xFF},
+ {0xFF,0xFF,0x00,0xFF}, {0xFF,0xFF,0x33,0xFF}, {0xFF,0xFF,0x66,0xFF}, {0xFF,0xFF,0x99,0xFF}, {0xFF,0xFF,0xCC,0xFF}, {0xFF,0xFF,0xFF,0xFF},
+
+ {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF},
+ {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF},
+ {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF},
+ {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF},
+ {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF},
+ {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF},
+ {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF}, {0x00,0x00,0x00,0xFF},
+};
+
+#define sqr(a) (double)((a) * (a))
+
+static int FindNearestWebColor(uint8_t r, uint8_t g, uint8_t b) {
+ int bestNdx = 0;
+ float bestDiff = sqrt(sqr(r - WebColorPalette[0].r) + sqr(g - WebColorPalette[0].g) + sqr(b - WebColorPalette[0].b));
+ for (int i=1; i<216; i++) {
+ float thisDiff = sqrt(sqr(r - WebColorPalette[i].r) + sqr(g - WebColorPalette[i].g) + sqr(b - WebColorPalette[i].b));
+ if (thisDiff < bestDiff) {
+ bestDiff = thisDiff;
+ bestNdx = i;
+ }
+ }
+ return bestNdx;
+}
+
RA8875::RA8875(PinName mosi, PinName miso, PinName sclk, PinName csel, PinName reset,
const char *name)
: GraphicsDisplay(name)
@@ -2241,7 +2310,8 @@
}
}
-RetCode_t RA8875::PrintScreen(loc_t x, loc_t y, dim_t w, dim_t h, const char *Name_BMP)
+
+RetCode_t RA8875::PrintScreen(loc_t x, loc_t y, dim_t w, dim_t h, const char *Name_BMP, uint8_t bitsPerPixel)
{
BITMAPFILEHEADER BMP_Header;
BITMAPINFOHEADER BMP_Info;
@@ -2249,33 +2319,49 @@
color_t * pixelBuffer = NULL;
color_t * pixelBuffer2 = NULL;
- INFO("(%d,%d) - (%d,%d) %s", x,y,w,h,Name_BMP);
+ INFO("(%d,%d)-(%d,%d)x%d %s", x,y,w,h,bitsPerPixel,Name_BMP);
if (x >= 0 && x < screenwidth
&& y >= 0 && y < screenheight
&& w > 0 && x + w <= screenwidth
&& h > 0 && y + h <= screenheight) {
-
BMP_Header.bfType = BF_TYPE;
- BMP_Header.bfSize = (w * h * sizeof(RGBQUAD)) + sizeof(BMP_Header) + sizeof(BMP_Info);
BMP_Header.bfReserved1 = 0;
BMP_Header.bfReserved2 = 0;
- BMP_Header.bfOffBits = sizeof(BMP_Header) + sizeof(BMP_Info);
+ switch (bitsPerPixel) {
+ case 24:
+ BMP_Header.bfOffBits = sizeof(BMP_Header) + sizeof(BMP_Info);
+ BMP_Header.bfSize = (h * RoundUp(w * sizeof(RGBQUAD),4)) + BMP_Header.bfOffBits;
+ break;
+ case 8:
+ default:
+ BMP_Header.bfOffBits = sizeof(BMP_Header) + sizeof(BMP_Info) + sizeof(WebColorPalette);
+ INFO("Initial Offset to Bitstream %X", BMP_Header.bfOffBits);
+ //if (BMP_Header.bfOffBits & 0x03) {
+ // BMP_Header.bfOffBits += (4 - (BMP_Header.bfOffBits & 0x03));
+ //}
+ BMP_Header.bfSize = (h * RoundUp(w * 1,4)) + BMP_Header.bfOffBits;
+ break;
+ }
+ INFO("Offset to Bitstream %X", BMP_Header.bfOffBits);
// Bytes in the line buffer
- int lineBufSize = RoundUp(3 * w, 4); // ((24 * w + 7)/8);
+ int lineBufSize = RoundUp(((bitsPerPixel == 24) ? 3 : 1) * w, 4);
INFO("LineBufSize: %d", lineBufSize);
BMP_Info.biSize = sizeof(BMP_Info);
BMP_Info.biWidth = w;
BMP_Info.biHeight = h;
BMP_Info.biPlanes = 1;
- BMP_Info.biBitCount = 24;
+ BMP_Info.biBitCount = bitsPerPixel;
BMP_Info.biCompression = BI_RGB;
BMP_Info.biSizeImage = lineBufSize * h;
BMP_Info.biXPelsPerMeter = 0;
BMP_Info.biYPelsPerMeter = 0;
- BMP_Info.biClrUsed = 0;
- BMP_Info.biClrImportant = 0;
+ // for 24-bit, there is no palette, so these are zero
+ // for 8-bit, there can be up to 256 RGB values in the palette
+
+ BMP_Info.biClrUsed = (bitsPerPixel == 24) ? 0 : sizeof(WebColorPalette)/sizeof(WebColorPalette[0]); // for 8b/pixel
+ BMP_Info.biClrImportant = BMP_Info.biClrUsed;
// Allocate the memory we need to proceed
lineBuffer = (uint8_t *)swMalloc(lineBufSize);
@@ -2329,7 +2415,16 @@
HexDump("BMP_Info", (uint8_t *)&BMP_Info, sizeof(BMP_Info));
fwrite(&BMP_Info, sizeof(char), sizeof(BMP_Info), Image);
-
+
+ if (bitsPerPixel != 24) {
+ HexDump("Palette", (uint8_t *)&WebColorPalette, sizeof(WebColorPalette));
+ fwrite(&WebColorPalette, sizeof(char), sizeof(WebColorPalette), Image);
+ if (0 && sizeof(WebColorPalette) % 4) {
+ const uint8_t padd[] = { 0, 0, 0 };
+ fwrite(&padd, sizeof(char),
+ (sizeof(BMP_Header) + sizeof(BMP_Info) + sizeof(WebColorPalette)) % 4, Image);
+ }
+ }
//color_t transparency = GetBackgroundTransparencyColor();
LayerMode_T ltpr0 = GetLayerMode();
@@ -2366,7 +2461,7 @@
}
}
INFO("Line: %3d", j);
- HexDump("Raster", (uint8_t *)pixelBuffer, w * sizeof(color_t));
+ //HexDump("Raster", (uint8_t *)pixelBuffer, w * sizeof(color_t));
// Convert the local buffer to RGBQUAD format
int lb = 0;
for (int i=0; i<w; i++) {
@@ -2382,25 +2477,36 @@
case 2: // lighten-overlay (@TODO Not supported yet)
case 6: // Floating Windows (@TODO not sure how to support)
default: // Reserved...
+ //lineBuffer[lb++] = q0.rgbBlue;
+ //lineBuffer[lb++] = q0.rgbGreen;
+ //lineBuffer[lb++] = q0.rgbRed;
+ break;
+ case 3: // transparent mode (@TODO Read the background color register for transparent)
+ case 4: // boolean or
+ q0.rgbBlue = q0.rgbBlue | q1.rgbBlue;
+ q0.rgbGreen = q0.rgbGreen | q1.rgbGreen;
+ q0.rgbRed = q0.rgbRed | q1.rgbRed;
+ break;
+ case 5: // boolean AND
+ q0.rgbBlue = q0.rgbBlue & q1.rgbBlue;
+ q0.rgbGreen = q0.rgbGreen & q1.rgbGreen;
+ q0.rgbRed = q0.rgbRed & q1.rgbRed;
+ break;
+ }
+ switch (bitsPerPixel) {
+ case 24:
lineBuffer[lb++] = q0.rgbBlue;
lineBuffer[lb++] = q0.rgbGreen;
lineBuffer[lb++] = q0.rgbRed;
break;
- case 3: // transparent mode (@TODO Read the background color register for transparent)
- case 4: // boolean or
- lineBuffer[lb++] = q0.rgbBlue | q1.rgbBlue;
- lineBuffer[lb++] = q0.rgbGreen | q1.rgbGreen;
- lineBuffer[lb++] = q0.rgbRed | q1.rgbRed;
- break;
- case 5: // boolean AND
- lineBuffer[lb++] = q0.rgbBlue & q1.rgbBlue;
- lineBuffer[lb++] = q0.rgbGreen & q1.rgbGreen;
- lineBuffer[lb++] = q0.rgbRed & q1.rgbRed;
+ case 8:
+ default:
+ lineBuffer[lb++] = FindNearestWebColor(q0.rgbRed,q0.rgbGreen,q0.rgbBlue);
break;
}
}
//if (j == h - 1) {
- HexDump("Line", lineBuffer, lineBufSize);
+ // HexDump("Line", lineBuffer, lineBufSize);
//}
// Write to disk
fwrite(lineBuffer, sizeof(char), lineBufSize, Image);
RA8875: 4" to 8" (WQVGA, WVGA, Multi-Touch, Keypad)