display refactor

components/display/core/gds_private.h

@@ -0,0 +1,130 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "esp_attr.h"
+#include "gds.h"
+#include "gds_err.h"
+
+#define GDS_CLIPDEBUG_NONE 0
+#define GDS_CLIPDEBUG_WARNING 1
+#define GDS_CLIPDEBUG_ERROR 2
+
+#define SHADOW_BUFFER
+
+#if CONFIG_GDS_CLIPDEBUG == GDS_CLIPDEBUG_NONE
+    /*
+     * Clip silently with no console output.
+     */
+    #define ClipDebug( x, y )
+#elif CONFIG_GDS_CLIPDEBUG == GDS_CLIPDEBUG_WARNING
+    /*
+     * Log clipping to the console as a warning.
+     */
+    #define ClipDebug( x, y ) { \
+        ESP_LOGW( __FUNCTION__, "Line %d: Pixel at %d, %d CLIPPED", __LINE__, x, y ); \
+    }
+#elif CONFIG_GDS_CLIPDEBUG == GDS_CLIPDEBUG_ERROR
+    /*
+     * Log clipping as an error to the console.
+     * Also invokes an abort with stack trace.
+     */
+    #define ClipDebug( x, y ) { \
+        ESP_LOGE( __FUNCTION__, "Line %d: Pixel at %d, %d CLIPPED, ABORT", __LINE__, x, y ); \
+        abort( ); \
+    }
+#endif
+
+
+#define GDS_ALWAYS_INLINE __attribute__( ( always_inline ) )
+
+#define MAX_LINES	8
+
+#if ! defined BIT
+#define BIT( n ) ( 1 << n )
+#endif
+
+typedef enum {
+    AddressMode_Horizontal = 0,
+    AddressMode_Vertical,
+    AddressMode_Page,
+    AddressMode_Invalid
+} GDS_AddressMode;
+
+struct GDS_Device;
+struct GDS_FontDef;
+
+/*
+ * These can optionally return a succeed/fail but are as of yet unused in the driver.
+ */
+typedef bool ( *WriteCommandProc ) ( struct GDS_Device* Device, uint8_t Command );
+typedef bool ( *WriteDataProc ) ( struct GDS_Device* Device, const uint8_t* Data, size_t DataLength );
+
+struct spi_device_t;
+typedef struct spi_device_t* spi_device_handle_t;
+
+#define IF_SPI	0
+#define IF_I2C	1
+
+struct GDS_Device {
+	uint8_t IF;
+	union {
+		// I2C Specific
+		struct {
+			uint8_t Address;
+		};
+		// SPI specific
+		struct {
+			spi_device_handle_t SPIHandle;
+			int8_t RSTPin;
+			int8_t CSPin;
+		};
+	};	
+
+    // cooked text mode
+	struct {
+		int16_t Y, Space;
+		const struct GDS_FontDef* Font;
+	} Lines[MAX_LINES];
+	
+	uint16_t Width;
+    uint16_t Height;
+	uint8_t Depth;
+		
+	uint8_t* Framebuffer, *Shadowbuffer;
+    uint16_t FramebufferSize;
+	bool Dirty;
+
+	// default fonts when using direct draw	
+	const struct GDS_FontDef* Font;
+    bool FontForceProportional;
+    bool FontForceMonospace;
+
+	// various driver-specific method
+	bool (*Init)( struct GDS_Device* Device);
+	void (*SetContrast)( struct GDS_Device* Device, uint8_t Contrast );
+	void (*DisplayOn)( struct GDS_Device* Device );
+	void (*DisplayOff)( struct GDS_Device* Device );
+	void (*Update)( struct GDS_Device* Device );
+	void (*DrawPixel)( struct GDS_Device* Device, int X, int Y, int Color );
+	void (*DrawPixelFast)( struct GDS_Device* Device, int X, int Y, int Color );
+	void (*SetHFlip)( struct GDS_Device* Device, bool On );
+	void (*SetVFlip)( struct GDS_Device* Device, bool On );
+	    
+	// interface-specific methods	
+    WriteCommandProc WriteCommand;
+    WriteDataProc WriteData;
+};
+
+bool GDS_Reset( struct GDS_Device* Device );
+
+/*
+inline void IRAM_ATTR 	GDS_DrawPixelFast( struct GDS_Device* Device, int X, int Y, int Color );
+void IRAM_ATTR 			GDS_DrawPixel( struct GDS_Device* Device, int x, int y, int Color );
+inline void IRAM_ATTR 	GDS_DrawPixel4Fast( struct GDS_Device* Device, int X, int Y, int Color );
+void IRAM_ATTR 			GDS_DrawPixel4( struct GDS_Device* Device, int x, int y, int Color );
+*/
+void IRAM_ATTR 	GDS_DrawPixelFast( struct GDS_Device* Device, int X, int Y, int Color );
+void IRAM_ATTR 			GDS_DrawPixel( struct GDS_Device* Device, int x, int y, int Color );
+void IRAM_ATTR 	GDS_DrawPixel4Fast( struct GDS_Device* Device, int X, int Y, int Color );
+void IRAM_ATTR 			GDS_DrawPixel4( struct GDS_Device* Device, int x, int y, int Color );