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add Vcc_GPIO & handle LMS 32-pixels fixed display height

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This commit is contained in:
philippe44
2020-01-20 22:15:11 -08:00
parent f9b3f0af40
commit ce790a412e
5 changed files with 45 additions and 21 deletions
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37
components/services/driver_SSD1306.c
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@@ -37,7 +37,7 @@ static const char *TAG = "display";
// handlers
static bool init(char *config, char *welcome);
static void text(enum display_pos_e pos, int attribute, char *text);
static void draw_cbr(u8_t *data);
static void draw_cbr(u8_t *data, int height);
static void draw(int x1, int y1, int x2, int y2, bool by_column, u8_t *data);
static void brightness(u8_t level);
static void on(bool state);
@@ -143,7 +143,7 @@ static void text(enum display_pos_e pos, int attribute, char *text) {
/****************************************************************************************
* Process graphic display data from column-oriented bytes, MSbit first
*/
static void draw_cbr(u8_t *data) {
static void draw_cbr(u8_t *data, int height) {
#ifndef FULL_REFRESH
// force addressing mode by rows
if (AddressMode != AddressMode_Horizontal) {
@@ -152,8 +152,7 @@ static void draw_cbr(u8_t *data) {
}
// try to minimize I2C traffic which is very slow
// TODO: this should move to grfe
int rows = (Display.Height > 32) ? 4 : Display.Height / 8;
int rows = (height ? height : Display.Height) / 8;
for (int r = 0; r < rows; r++) {
uint8_t first = 0, last;
uint8_t *optr = Display.Framebuffer + r*Display.Width, *iptr = data + r;
@@ -177,14 +176,14 @@ static void draw_cbr(u8_t *data) {
}
}
#else
int len = (Display.Width * Display.Height) / 8;
// to be verified, but this is as fast as using a pointer on data
for (int i = len - 1; i >= 0; i--) Display.Framebuffer[i] = BitReverseTable256[data[i]];
// 64 pixels display are not handled by LMS (bitmap is 32 pixels)
// TODO: this should move to grfe
if (Display.Height > 32) SSD1306_SetPageAddress( &Display, 0, 32/8-1);
if (!height) height = Display->Height;
// copy data in frame buffer
for (int c = 0; c < Display.Width; c++)
for (int r = 0; r < height / 8; r++)
Display.Framebuffer[c*Display.Height/8 + r] = BitReverseTable256[data[c*height/8 +r]];
SSD1306_SetPageAddress( &Display, 0, height / 8 - 1);
// force addressing mode by columns
if (AddressMode != AddressMode_Vertical) {
@@ -192,12 +191,13 @@ static void draw_cbr(u8_t *data) {
SSD1306_SetDisplayAddressMode( &Display, AddressMode );
}
SSD1306_WriteRawData(&Display, Display.Framebuffer, len);
SSD1306_WriteRawData(&Display, Display.Framebuffer, Display.Width * Display.Heigth);
#endif
}
/****************************************************************************************
* Process graphic display data MSBit first
* WARNING: this has not been tested yet
*/
static void draw(int x1, int y1, int x2, int y2, bool by_column, u8_t *data) {
@@ -209,11 +209,14 @@ static void draw(int x1, int y1, int x2, int y2, bool by_column, u8_t *data) {
// default end point to display size
if (x2 == -1) x2 = Display.Width - 1;
if (y2 == -1) y2 = Display.Height - 1;
// set addressing mode to match data
if (by_column && AddressMode != AddressMode_Vertical) {
AddressMode = AddressMode_Vertical;
SSD1306_SetDisplayAddressMode( &Display, AddressMode );
if (by_column) {
if (AddressMode != AddressMode_Vertical) {
AddressMode = AddressMode_Vertical;
SSD1306_SetDisplayAddressMode( &Display, AddressMode );
}
// copy the window and do row/col exchange
for (int r = y1/8; r <= y2/8; r++) {