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Add support for hardware assisted vertical scrolling.

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This commit is contained in:
JF 2020-02-15 15:12:29 +01:00
parent e737fb0499
commit f30573a9b0
4 changed files with 34 additions and 1 deletions
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9
src/Components/Gfx/Gfx.cpp
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@ -30,7 +30,7 @@ void Gfx::ClearScreen() {
void Gfx::FillRectangle(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint16_t color) {
SetBackgroundColor(color);
state.remainingIterations = 240 + 1;
state.remainingIterations = h;
state.currentIteration = 0;
state.busy = true;
state.action = Action::FillRectangle;
@ -183,4 +183,11 @@ void Gfx::WaitTransfertFinished() const {
ulTaskNotifyTake(pdTRUE, 500);
}
void Gfx::SetScrollArea(uint16_t topFixedLines, uint16_t scrollLines, uint16_t bottomFixedLines) {
lcd.VerticalScrollDefinition(topFixedLines, scrollLines, bottomFixedLines);
}
void Gfx::SetScrollStartLine(uint16_t line) {
lcd.VerticalScrollStartAddress(line);
}

3
src/Components/Gfx/Gfx.h
View file

@ -19,6 +19,9 @@ namespace Pinetime {
void DrawString(uint8_t x, uint8_t y, uint16_t color, const char* text, const FONT_INFO *p_font, bool wrap);
void DrawChar(const FONT_INFO *font, uint8_t c, uint8_t *x, uint8_t y, uint16_t color);
void FillRectangle(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint16_t color);
void SetScrollArea(uint16_t topFixedLines, uint16_t scrollLines, uint16_t bottomFixedLines);
void SetScrollStartLine(uint16_t line);
void Sleep();
void Wakeup();

17
src/drivers/St7789.cpp
View file

@ -120,6 +120,23 @@ void St7789::DisplayOff() {
nrf_delay_ms(500);
}
void St7789::VerticalScrollDefinition(uint16_t topFixedLines, uint16_t scrollLines, uint16_t bottomFixedLines) {
WriteCommand(static_cast<uint8_t>(Commands::VerticalScrollDefinition));
WriteData(topFixedLines >> 8u);
WriteData(topFixedLines & 0x00ffu);
WriteData(scrollLines >> 8u);
WriteData(scrollLines & 0x00ffu);
WriteData(bottomFixedLines >> 8u);
WriteData(bottomFixedLines & 0x00ffu);
}
void St7789::VerticalScrollStartAddress(uint16_t line) {
WriteCommand(static_cast<uint8_t>(Commands::VerticalScrollStartAddress));
WriteData(line >> 8u);
WriteData(line & 0x00ffu);
}
void St7789::Uninit() {
}

6
src/drivers/St7789.h
View file

@ -11,6 +11,10 @@ namespace Pinetime {
void Uninit();
void DrawPixel(uint16_t x, uint16_t y, uint32_t color);
void VerticalScrollDefinition(uint16_t topFixedLines, uint16_t scrollLines, uint16_t bottomFixedLines);
void VerticalScrollStartAddress(uint16_t line);
void BeginDrawBuffer(uint16_t x, uint16_t y, uint16_t width, uint16_t height);
void NextDrawBuffer(const uint8_t* data, size_t size);
@ -48,6 +52,8 @@ namespace Pinetime {
RowAddressSet = 0x2b,
WriteToRam = 0x2c,
MemoryDataAccessControl = 036,
VerticalScrollDefinition = 0x33,
VerticalScrollStartAddress = 0x37,
ColMod = 0x3a,
};
void WriteData(uint8_t data);