mirror of
https://github.com/sle118/squeezelite-esp32.git
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273 lines
10 KiB
C
273 lines
10 KiB
C
/**
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* Copyright (c) 2017-2018 Tara Keeling
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* 2020 Philippe G.
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*
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* This software is released under the MIT License.
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* https://opensource.org/licenses/MIT
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*/
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#include <string.h>
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#include <ctype.h>
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#include <stdint.h>
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#include <math.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "driver/gpio.h"
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#include "driver/ledc.h"
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#include "esp_log.h"
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#include "Config.h"
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#include "gds.h"
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#include "gds_private.h"
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#ifdef CONFIG_IDF_TARGET_ESP32S3
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#define LEDC_SPEED_MODE LEDC_LOW_SPEED_MODE
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#else
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#define LEDC_SPEED_MODE LEDC_HIGH_SPEED_MODE
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#endif
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extern bool gds_init_fonts();
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static struct GDS_Device Display;
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static struct GDS_BacklightPWM PWMConfig;
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static char TAG[] = "gds";
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struct GDS_Device* GDS_AutoDetect(sys_display_config* Driver, GDS_DetectFunc* DetectFunc[], struct GDS_BacklightPWM* PWM) {
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if(!Driver->has_common || Driver->common.driver == sys_display_drivers_UNSPECIFIED) return NULL;
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if(PWM) PWMConfig = *PWM;
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for(int i = 0; DetectFunc[i]; i++) {
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if(DetectFunc[i](Driver, &Display)) {
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if(PWM && PWM->Init) {
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ledc_timer_config_t PWMTimer = {
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.duty_resolution = LEDC_TIMER_13_BIT,
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.freq_hz = 5000,
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.speed_mode = LEDC_SPEED_MODE,
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.timer_num = PWMConfig.Timer,
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};
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ledc_timer_config(&PWMTimer);
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}
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ESP_LOGD(TAG, "Detected driver %p with PWM %d", &Display, PWM ? PWM->Init : 0);
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return &Display;
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}
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}
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return NULL;
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}
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void GDS_ClearExt(struct GDS_Device* Device, bool full, ...) {
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bool commit = true;
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if(full) {
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GDS_Clear(Device, GDS_COLOR_BLACK);
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} else {
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va_list args;
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va_start(args, full);
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commit = va_arg(args, int);
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int x1 = va_arg(args, int), y1 = va_arg(args, int), x2 = va_arg(args, int), y2 = va_arg(args, int);
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if(x2 < 0) x2 = Device->Width - 1;
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if(y2 < 0) y2 = Device->Height - 1;
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GDS_ClearWindow(Device, x1, y1, x2, y2, GDS_COLOR_BLACK);
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va_end(args);
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}
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Device->Dirty = true;
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if(commit) GDS_Update(Device);
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}
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void GDS_Clear(struct GDS_Device* Device, int Color) {
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if(Color == GDS_COLOR_BLACK)
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memset(Device->Framebuffer, 0, Device->FramebufferSize);
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else if(Device->Depth == 1)
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memset(Device->Framebuffer, 0xff, Device->FramebufferSize);
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else if(Device->Depth == 4)
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memset(Device->Framebuffer, Color | (Color << 4), Device->FramebufferSize);
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else if(Device->Depth == 8)
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memset(Device->Framebuffer, Color, Device->FramebufferSize);
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else
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GDS_ClearWindow(Device, 0, 0, -1, -1, Color);
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Device->Dirty = true;
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}
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#define CLEAR_WINDOW(x1, y1, x2, y2, F, W, C, T, N) \
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for(int y = y1; y <= y2; y++) { \
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T* Ptr = (T*)F + (y * W + x1) * N; \
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for(int c = (x2 - x1) * N; c-- >= 0; *Ptr++ = C); \
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}
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void GDS_ClearWindow(struct GDS_Device* Device, int x1, int y1, int x2, int y2, int Color) {
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// -1 means up to width/height
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if(x2 < 0) x2 = Device->Width - 1;
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if(y2 < 0) y2 = Device->Height - 1;
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// driver can provide own optimized clear window
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if(Device->ClearWindow) {
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Device->ClearWindow(Device, x1, y1, x2, y2, Color);
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} else if(Device->Depth == 1) {
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// single shot if we erase all screen
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if(x2 - x1 == Device->Width - 1 && y2 - y1 == Device->Height - 1) {
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memset(Device->Framebuffer, Color == GDS_COLOR_BLACK ? 0 : 0xff, Device->FramebufferSize);
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} else {
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uint8_t _Color = Color == GDS_COLOR_BLACK ? 0 : 0xff;
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uint8_t Width = Device->Width >> 3;
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uint8_t* optr = Device->Framebuffer;
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// try to do byte processing as much as possible
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for(int r = y1; r <= y2;) {
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int c = x1;
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// for a row that is not on a boundary, no optimization possible
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while(r & 0x07 && r <= y2) {
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for(c = x1; c <= x2; c++) DrawPixelFast(Device, c, r, Color);
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r++;
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}
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// go fast if we have more than 8 lines to write
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if(r + 8 <= y2) {
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memset(optr + Width * r + x1, _Color, x2 - x1 + 1);
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r += 8;
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} else
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while(r <= y2) {
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for(c = x1; c <= x2; c++) DrawPixelFast(Device, c, r, Color);
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r++;
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}
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}
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}
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}
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if(Device->Depth == 4) {
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if(x2 - x1 == Device->Width - 1 && y2 - y1 == Device->Height - 1) {
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// we assume color is 0..15
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memset(Device->Framebuffer, Color | (Color << 4), Device->FramebufferSize);
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} else {
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uint8_t _Color = Color | (Color << 4);
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int Width = Device->Width;
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uint8_t* optr = Device->Framebuffer;
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// try to do byte processing as much as possible
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for(int r = y1; r <= y2; r++) {
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int c = x1;
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if(c & 0x01) DrawPixelFast(Device, c++, r, Color);
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int chunk = (x2 - c + 1) >> 1;
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memset(optr + ((r * Width + c) >> 1), _Color, chunk);
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if(c + chunk <= x2) DrawPixelFast(Device, x2, r, Color);
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}
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}
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} else if(Device->Depth == 8) {
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CLEAR_WINDOW(x1, y1, x2, y2, Device->Framebuffer, Device->Width, Color, uint8_t, 1);
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} else if(Device->Depth == 16) {
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CLEAR_WINDOW(x1, y1, x2, y2, Device->Framebuffer, Device->Width, Color, uint16_t, 1);
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} else if(Device->Depth == 24) {
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CLEAR_WINDOW(x1, y1, x2, y2, Device->Framebuffer, Device->Width, Color, uint8_t, 3);
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} else {
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for(int y = y1; y <= y2; y++) {
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for(int x = x1; x <= x2; x++) { DrawPixelFast(Device, x, y, Color); }
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}
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}
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// make sure diplay will do update
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Device->Dirty = true;
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}
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void GDS_Update(struct GDS_Device* Device) {
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if(Device->Dirty) Device->Update(Device);
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Device->Dirty = false;
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}
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bool GDS_Reset(struct GDS_Device* Device) {
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if(Device->RSTPin >= 0) {
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gpio_set_level(Device->RSTPin, 0);
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vTaskDelay(pdMS_TO_TICKS(100));
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gpio_set_level(Device->RSTPin, 1);
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}
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return true;
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}
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bool GDS_Init(struct GDS_Device* Device) {
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if(Device->Depth > 8)
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Device->FramebufferSize = Device->Width * Device->Height * ((8 + Device->Depth - 1) / 8);
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else
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Device->FramebufferSize = (Device->Width * Device->Height) / (8 / Device->Depth);
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// allocate FB unless explicitely asked not to
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if(!(Device->Alloc & GDS_ALLOC_NONE)) {
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if((Device->Alloc & GDS_ALLOC_IRAM) || ((Device->Alloc & GDS_ALLOC_IRAM_SPI) && Device->IF == GDS_IF_SPI)) {
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Device->Framebuffer = heap_caps_calloc(1, Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA);
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} else {
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Device->Framebuffer = calloc(1, Device->FramebufferSize);
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}
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NullCheck(Device->Framebuffer, return false);
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}
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if(Device->Backlight.Pin >= 0) {
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Device->Backlight.Channel = PWMConfig.Channel++;
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Device->Backlight.PWM = PWMConfig.Max - 1;
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ledc_channel_config_t PWMChannel = {
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.channel = Device->Backlight.Channel,
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.duty = Device->Backlight.PWM,
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.gpio_num = Device->Backlight.Pin,
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.speed_mode = LEDC_SPEED_MODE,
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.hpoint = 0,
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.timer_sel = PWMConfig.Timer,
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};
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ledc_channel_config(&PWMChannel);
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}
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bool Res = Device->Init(Device);
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if(Res) { Res = gds_init_fonts(); }
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if(!Res && Device->Framebuffer) free(Device->Framebuffer);
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return Res;
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}
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int GDS_GrayMap(struct GDS_Device* Device, uint8_t Level) {
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switch(Device->Mode) {
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case GDS_MONO:
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return Level;
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case GDS_GRAYSCALE:
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return Level >> (8 - Device->Depth);
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case GDS_RGB332:
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Level >>= 5;
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return (Level << 6) | (Level << 3) | (Level >> 1);
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case GDS_RGB444:
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Level >>= 4;
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return (Level << 8) | (Level << 4) | Level;
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case GDS_RGB555:
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Level >>= 3;
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return (Level << 10) | (Level << 5) | Level;
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case GDS_RGB565:
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Level >>= 2;
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return ((Level & ~0x01) << 10) | (Level << 5) | (Level >> 1);
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case GDS_RGB666:
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Level >>= 2;
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return (Level << 12) | (Level << 6) | Level;
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case GDS_RGB888:
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return (Level << 16) | (Level << 8) | Level;
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}
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return -1;
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}
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void GDS_SetContrast(struct GDS_Device* Device, uint8_t Contrast) {
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if(Device->SetContrast)
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Device->SetContrast(Device, Contrast);
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else if(Device->Backlight.Pin >= 0) {
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Device->Backlight.PWM = PWMConfig.Max * powf(Contrast / 255.0, 3);
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ledc_set_duty(LEDC_SPEED_MODE, Device->Backlight.Channel, Device->Backlight.PWM);
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ledc_update_duty(LEDC_SPEED_MODE, Device->Backlight.Channel);
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}
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}
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void GDS_SetLayout(struct GDS_Device* Device, struct GDS_Layout* Layout) {
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if(Device->SetLayout) Device->SetLayout(Device, Layout);
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}
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void GDS_SetDirty(struct GDS_Device* Device) { Device->Dirty = true; }
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int GDS_GetWidth(struct GDS_Device* Device) { return Device ? Device->Width : 0; }
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void GDS_SetTextWidth(struct GDS_Device* Device, int TextWidth) {
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Device->TextWidth = Device && TextWidth && TextWidth < Device->Width ? TextWidth : Device->Width;
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}
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int GDS_GetHeight(struct GDS_Device* Device) { return Device ? Device->Height : 0; }
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int GDS_GetDepth(struct GDS_Device* Device) { return Device ? Device->Depth : 0; }
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int GDS_GetMode(struct GDS_Device* Device) { return Device ? Device->Mode : 0; }
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void GDS_DisplayOn(struct GDS_Device* Device) {
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if(Device->DisplayOn) Device->DisplayOn(Device);
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}
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void GDS_DisplayOff(struct GDS_Device* Device) {
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if(Device->DisplayOff) Device->DisplayOff(Device);
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} |