mirror of
https://github.com/sle118/squeezelite-esp32.git
synced 2026-05-02 03:19:29 +01:00
style: apply clang-format and enforce left pointer alignment
This commit is contained in:
Sebastien L
@@ -22,153 +22,158 @@
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static char TAG[] = "SSD1306";
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struct PrivateSpace {
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uint8_t *Shadowbuffer;
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uint8_t* Shadowbuffer;
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};
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// Functions are not declared to minimize # of lines
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static void SetColumnAddress( struct GDS_Device* Device, uint8_t Start, uint8_t End ) {
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Device->WriteCommand( Device, 0x21 );
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Device->WriteCommand( Device, Start );
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Device->WriteCommand( Device, End );
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static void SetColumnAddress(struct GDS_Device* Device, uint8_t Start, uint8_t End) {
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Device->WriteCommand(Device, 0x21);
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Device->WriteCommand(Device, Start);
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Device->WriteCommand(Device, End);
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}
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static void SetPageAddress( struct GDS_Device* Device, uint8_t Start, uint8_t End ) {
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Device->WriteCommand( Device, 0x22 );
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Device->WriteCommand( Device, Start );
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Device->WriteCommand( Device, End );
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static void SetPageAddress(struct GDS_Device* Device, uint8_t Start, uint8_t End) {
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Device->WriteCommand(Device, 0x22);
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Device->WriteCommand(Device, Start);
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Device->WriteCommand(Device, End);
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}
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static void Update( struct GDS_Device* Device ) {
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static void Update(struct GDS_Device* Device) {
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#ifdef SHADOW_BUFFER
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struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
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// not sure the compiler does not have to redo all calculation in for loops, so local it is
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int width = Device->Width, pages = Device->Height / 8;
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uint8_t *optr = Private->Shadowbuffer, *iptr = Device->Framebuffer;
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int CurrentPage = -1, FirstCol = -1, LastCol = -1;
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// by row, find first and last columns that have been updated
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for (int p = 0; p < pages; p++) {
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uint8_t first = 0, last;
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for (int c = 0; c < width; c++) {
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if (*iptr != *optr) {
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if (!first) first = c + 1;
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last = c ;
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}
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*optr++ = *iptr++;
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}
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// now update the display by "byte rows"
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if (first--) {
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// only set column when useful, saves a fair bit of CPU
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if (first > FirstCol && first <= FirstCol + 4 && last < LastCol && last >= LastCol - 4) {
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first = FirstCol;
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last = LastCol;
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} else {
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SetColumnAddress( Device, first, last );
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FirstCol = first;
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LastCol = last;
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}
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// Set row only when needed, otherwise let auto-increment work
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if (p != CurrentPage) SetPageAddress( Device, p, Device->Height / 8 - 1 );
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CurrentPage = p + 1;
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// actual write
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Device->WriteData( Device, Private->Shadowbuffer + p*width + first, last - first + 1);
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}
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}
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#else
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// automatic counter and end Page/Column (we assume Height % 8 == 0)
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SetColumnAddress( Device, 0, Device->Width - 1);
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SetPageAddress( Device, 0, Device->Height / 8 - 1);
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Device->WriteData( Device, Device->Framebuffer, Device->FramebufferSize );
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#endif
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}
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struct PrivateSpace* Private = (struct PrivateSpace*)Device->Private;
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// not sure the compiler does not have to redo all calculation in for loops, so local it is
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int width = Device->Width, pages = Device->Height / 8;
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uint8_t *optr = Private->Shadowbuffer, *iptr = Device->Framebuffer;
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int CurrentPage = -1, FirstCol = -1, LastCol = -1;
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static void SetLayout( struct GDS_Device* Device, struct GDS_Layout *Layout ) {
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Device->WriteCommand( Device, Layout->HFlip ? 0xA1 : 0xA0 );
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Device->WriteCommand( Device, Layout->VFlip ? 0xC8 : 0xC0 );
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Device->WriteCommand( Device, Layout->Invert ? 0xA7 : 0xA6 );
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}
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static void DisplayOn( struct GDS_Device* Device ) { Device->WriteCommand( Device, 0xAF ); }
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static void DisplayOff( struct GDS_Device* Device ) { Device->WriteCommand( Device, 0xAE ); }
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// by row, find first and last columns that have been updated
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for(int p = 0; p < pages; p++) {
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uint8_t first = 0, last;
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for(int c = 0; c < width; c++) {
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if(*iptr != *optr) {
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if(!first) first = c + 1;
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last = c;
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}
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*optr++ = *iptr++;
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}
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static void SetContrast( struct GDS_Device* Device, uint8_t Contrast ) {
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Device->WriteCommand( Device, 0x81 );
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Device->WriteCommand( Device, Contrast );
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}
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// now update the display by "byte rows"
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if(first--) {
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// only set column when useful, saves a fair bit of CPU
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if(first > FirstCol && first <= FirstCol + 4 && last < LastCol && last >= LastCol - 4) {
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first = FirstCol;
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last = LastCol;
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} else {
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SetColumnAddress(Device, first, last);
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FirstCol = first;
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LastCol = last;
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}
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static bool Init( struct GDS_Device* Device ) {
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#ifdef SHADOW_BUFFER
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struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
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#ifdef USE_IRAM
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if (Device->IF == GDS_IF_SPI) Private->Shadowbuffer = heap_caps_malloc( Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
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else
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// Set row only when needed, otherwise let auto-increment work
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if(p != CurrentPage) SetPageAddress(Device, p, Device->Height / 8 - 1);
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CurrentPage = p + 1;
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// actual write
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Device->WriteData(Device, Private->Shadowbuffer + p * width + first, last - first + 1);
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}
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}
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#else
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// automatic counter and end Page/Column (we assume Height % 8 == 0)
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SetColumnAddress(Device, 0, Device->Width - 1);
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SetPageAddress(Device, 0, Device->Height / 8 - 1);
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Device->WriteData(Device, Device->Framebuffer, Device->FramebufferSize);
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#endif
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Private->Shadowbuffer = malloc( Device->FramebufferSize );
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NullCheck( Private->Shadowbuffer, return false );
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memset(Private->Shadowbuffer, 0xFF, Device->FramebufferSize);
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#endif
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// need to be off and disable display RAM
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Device->DisplayOff( Device );
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Device->WriteCommand( Device, 0xA5 );
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// charge pump regulator, do direct init
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Device->WriteCommand( Device, 0x8D );
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Device->WriteCommand( Device, 0x14 );
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// COM pins HW config (alternative:EN if 64, DIS if 32, remap:DIS) - some display might need something different
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Device->WriteCommand( Device, 0xDA );
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Device->WriteCommand( Device, ((Device->Height == 64 ? 1 : 0) << 4) | (0 < 5) );
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// MUX Ratio
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Device->WriteCommand( Device, 0xA8 );
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Device->WriteCommand( Device, Device->Height - 1);
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// Display Offset
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Device->WriteCommand( Device, 0xD3 );
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Device->WriteCommand( Device, 0 );
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// Display Start Line
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Device->WriteCommand( Device, 0x40 + 0x00 );
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Device->SetContrast( Device, 0x7F );
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// set flip modes
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struct GDS_Layout Layout = { };
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Device->SetLayout( Device, &Layout );
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// no Display Inversion
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Device->WriteCommand( Device, 0xA6 );
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// set Clocks
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Device->WriteCommand( Device, 0xD5 );
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Device->WriteCommand( Device, ( 0x08 << 4 ) | 0x00 );
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// set Adressing Mode Horizontal
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Device->WriteCommand( Device, 0x20 );
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Device->WriteCommand( Device, 0 );
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// gone with the wind
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Device->WriteCommand( Device, 0xA4 );
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Device->DisplayOn( Device );
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Device->Update( Device );
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return true;
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}
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}
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static void SetLayout(struct GDS_Device* Device, struct GDS_Layout* Layout) {
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Device->WriteCommand(Device, Layout->HFlip ? 0xA1 : 0xA0);
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Device->WriteCommand(Device, Layout->VFlip ? 0xC8 : 0xC0);
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Device->WriteCommand(Device, Layout->Invert ? 0xA7 : 0xA6);
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}
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static void DisplayOn(struct GDS_Device* Device) { Device->WriteCommand(Device, 0xAF); }
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static void DisplayOff(struct GDS_Device* Device) { Device->WriteCommand(Device, 0xAE); }
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static void SetContrast(struct GDS_Device* Device, uint8_t Contrast) {
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Device->WriteCommand(Device, 0x81);
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Device->WriteCommand(Device, Contrast);
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}
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static bool Init(struct GDS_Device* Device) {
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#ifdef SHADOW_BUFFER
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struct PrivateSpace* Private = (struct PrivateSpace*)Device->Private;
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#ifdef USE_IRAM
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if(Device->IF == GDS_IF_SPI)
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Private->Shadowbuffer = heap_caps_malloc(Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA);
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else
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#endif
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Private->Shadowbuffer = malloc(Device->FramebufferSize);
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NullCheck(Private->Shadowbuffer, return false);
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memset(Private->Shadowbuffer, 0xFF, Device->FramebufferSize);
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#endif
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// need to be off and disable display RAM
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Device->DisplayOff(Device);
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Device->WriteCommand(Device, 0xA5);
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// charge pump regulator, do direct init
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Device->WriteCommand(Device, 0x8D);
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Device->WriteCommand(Device, 0x14);
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// COM pins HW config (alternative:EN if 64, DIS if 32, remap:DIS) - some display might need something different
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Device->WriteCommand(Device, 0xDA);
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Device->WriteCommand(Device, ((Device->Height == 64 ? 1 : 0) << 4) | (0 < 5));
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// MUX Ratio
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Device->WriteCommand(Device, 0xA8);
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Device->WriteCommand(Device, Device->Height - 1);
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// Display Offset
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Device->WriteCommand(Device, 0xD3);
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Device->WriteCommand(Device, 0);
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// Display Start Line
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Device->WriteCommand(Device, 0x40 + 0x00);
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Device->SetContrast(Device, 0x7F);
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// set flip modes
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struct GDS_Layout Layout = {};
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Device->SetLayout(Device, &Layout);
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// no Display Inversion
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Device->WriteCommand(Device, 0xA6);
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// set Clocks
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Device->WriteCommand(Device, 0xD5);
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Device->WriteCommand(Device, (0x08 << 4) | 0x00);
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// set Adressing Mode Horizontal
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Device->WriteCommand(Device, 0x20);
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Device->WriteCommand(Device, 0);
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// gone with the wind
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Device->WriteCommand(Device, 0xA4);
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Device->DisplayOn(Device);
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Device->Update(Device);
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return true;
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}
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static const struct GDS_Device SSD1306 = {
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.DisplayOn = DisplayOn, .DisplayOff = DisplayOff, .SetContrast = SetContrast,
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.SetLayout = SetLayout,
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.Update = Update, .Init = Init,
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.Mode = GDS_MONO, .Depth = 1,
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#if !defined SHADOW_BUFFER && defined USE_IRAM
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.Alloc = GDS_ALLOC_IRAM_SPI,
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#endif
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};
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.DisplayOn = DisplayOn,
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.DisplayOff = DisplayOff,
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.SetContrast = SetContrast,
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.SetLayout = SetLayout,
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.Update = Update,
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.Init = Init,
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.Mode = GDS_MONO,
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.Depth = 1,
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#if !defined SHADOW_BUFFER && defined USE_IRAM
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.Alloc = GDS_ALLOC_IRAM_SPI,
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#endif
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};
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struct GDS_Device* SSD1306_Detect(sys_display_config * Driver, struct GDS_Device* Device) {
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if(Driver->common.driver != sys_display_drivers_SSD1306) return NULL;
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if (!Device) Device = calloc(1, sizeof(struct GDS_Device));
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*Device = SSD1306;
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ESP_LOGI(TAG, "SSD1306 driver");
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return Device;
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struct GDS_Device* SSD1306_Detect(sys_display_config* Driver, struct GDS_Device* Device) {
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if(Driver->common.driver != sys_display_drivers_SSD1306) return NULL;
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if(!Device) Device = calloc(1, sizeof(struct GDS_Device));
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*Device = SSD1306;
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ESP_LOGI(TAG, "SSD1306 driver");
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return Device;
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}
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