Files
squeezelite-esp32/components/display/core/gds_image.h
2020-03-18 23:42:44 -07:00

26 lines
978 B
C

#pragma once
#include <stdint.h>
#include "esp_err.h"
// no progressive JPEG handling
struct GDS_Device;
enum { GDS_RGB565, GDS_RGB555, GDS_RGB444 };
#define GDS_IMAGE_LEFT 0x00
#define GDS_IMAGE_CENTER_X 0x01
#define GDS_IMAGE_RIGHT 0x04
#define GDS_IMAGE_TOP 0x00
#define GDS_IMAGE_BOTTOM 0x08
#define GDS_IMAGE_CENTER_Y 0x02
#define GDS_IMAGE_CENTER (GDS_IMAGE_CENTER_X | GDS_IMAGE_CENTER_Y)
#define GDS_IMAGE_FIT 0x10
// Width and Height can be NULL if you already know them (actual scaling is closest ^2)
uint16_t* GDS_DecodeJPEG(uint8_t *Source, int *Width, int *Height, float Scale);
void GDS_GetJPEGSize(uint8_t *Source, int *Width, int *Height);
void GDS_DrawRGB16( struct GDS_Device* Device, uint16_t *Image, int x, int y, int Width, int Height, int RGB_Mode );
// set DisplayWidth and DisplayHeight to non-zero if you want autoscale to closest factor ^2 from 0..3
bool GDS_DrawJPEG( struct GDS_Device* Device, uint8_t *Source, int x, int y, int Fit);