58 lines
2.2 KiB
C
58 lines
2.2 KiB
C
#ifndef __SWM341_DMA2D_H__
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#define __SWM341_DMA2D_H__
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#include <stdint.h>
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typedef struct {
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uint16_t Interval; // 每传输一块数据（64个字），等待指定个系统周期后再传输下一个块，防止DMA2D占用过多SDRAM带宽，影响LCD读取显示数据；取值1--1023
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uint8_t IntEOTEn; // End of Transter（传输完成）中断使能
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} DMA2D_InitStructure;
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typedef struct {
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uint32_t Address;
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uint32_t LineOffset; // added at the end of each line to determine the starting address of the next line
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uint8_t ColorMode; // DMA2D_FMT_ARGB888、DMA2D_FMT_RGB888、DMA2D_FMT_RGB565、...
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uint8_t AlphaMode; // DMA2D_AMODE_PIXEL、DMA2D_AMODE_ALPHA、DMA2D_AMODE_PMULA、...
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uint8_t Alpha;
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/* 只有输出层需要设置这两个域，前景层和背景层不需设置 */
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uint16_t LineCount; // 显示数据行数
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uint16_t LinePixel; // 每行像素个数
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} DMA2D_LayerSetting;
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#define DMA2D_LAYER_FG 0 // Foreground layer
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#define DMA2D_LAYER_BG 1 // Background layer
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#define DMA2D_LAYER_OUT 2 // Output layer
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/* Color Format */
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#define DMA2D_FMT_ARGB888 (0 | (0 << 4))
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#define DMA2D_FMT_RGB888 (1 | (0 << 4))
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#define DMA2D_FMT_RGB565 (2 | (0 << 4))
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#define DMA2D_FMT_ABGR888 (0 | (1 << 4))
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#define DMA2D_FMT_BGR888 (1 | (1 << 4))
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#define DMA2D_FMT_BGR565 (2 | (1 << 4))
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/* Alpha Mode */
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#define DMA2D_AMODE_PIXEL (0 | (0 << 5)) // 使用像素点自带Alpha值
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#define DMA2D_AMODE_ALPHA (0 | (1 << 5)) // 使用软件指定的Alpha值
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#define DMA2D_AMODE_PMULA (0 | (2 << 5)) // 使用像素点自带Alpha值与软件指定的Alpha值的乘积
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void DMA2D_Init(DMA2D_InitStructure * initStruct);
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void DMA2D_PixelFill(DMA2D_LayerSetting * outLayer, uint32_t color);
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void DMA2D_PixelMove(DMA2D_LayerSetting * fgLayer, DMA2D_LayerSetting * outLayer);
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void DMA2D_PixelConvert(DMA2D_LayerSetting * fgLayer, DMA2D_LayerSetting * outLayer);
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void DMA2D_PixelBlend(DMA2D_LayerSetting * fgLayer, DMA2D_LayerSetting * bgLayer, DMA2D_LayerSetting * outLayer);
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uint32_t DMA2D_IsBusy(void);
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void DMA2D_INTEn(void);
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void DMA2D_INTDis(void);
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void DMA2D_INTClr(void);
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uint32_t DMA2D_INTStat(void);
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#endif // __SWM341_DMA2D_H__
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