1060 lines
31 KiB
C
1060 lines
31 KiB
C
/***
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*****************************************************************************************
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* @file lcd.c
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* @brief 使用STM32F29本身的控制器驱动液晶屏，一下代码移植于官方
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*STM32F429I_DISCOVERY 实验板的例程，并作出相应的修改
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*****************************************************************************************
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*
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*
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*
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*
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******************************************************************************************
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***/
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#include "lcd_rgb.h"
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#include "mymem.h"
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#define COLOR565TO888(color) \
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((((color) & 0xf800) << 8) | ((color) & 0x07e0) << 5 | \
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(((color) & 0x001f) << 3))
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#define COLOR888TO565(color) \
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((((color) >> 8) & 0xf800) | (((color) >> 5) & 0x07e0) | \
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(((color) >> 3) & 0x001f))
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// 把RGB转化为565格式
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#define RGB(r, g, b) ((((r) >> 3) << 11) | (((g) >> 2) << 5) | ((b) >> 3))
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// RGB转灰度
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#define RGB2GRAY(rgb16) \
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(((((rgb16) & 0xf800) >> 8) + (((rgb16) & 0x07e0) >> 3) + \
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(((rgb16) & 0x001f) << 3)) / \
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3)
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// 灰度转RGB
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#define GRAY2RGB(gray) \
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((((gray) >> 3) << 11) | (((gray) >> 2) << 5) | ((gray) >> 3))
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// 函数：IO口初始化
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void LCD_GPIO_Config(void) {
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GPIO_InitTypeDef GPIO_InitStruct;
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RCC_AHB1PeriphClockCmd(LCD_GPIO_CLK, ENABLE);
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GPIO_InitStruct.GPIO_Pin = LTDC_R0_PIN;
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GPIO_InitStruct.GPIO_Speed = GPIO_Speed_100MHz;
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
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GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
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// LCD 颜色 R 引脚配置
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GPIO_PinAFConfig(LTDC_R0_PORT, LTDC_R0_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_R1_PORT, LTDC_R1_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_R2_PORT, LTDC_R2_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_R3_PORT, LTDC_R3_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_R4_PORT, LTDC_R4_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_R5_PORT, LTDC_R5_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_R6_PORT, LTDC_R6_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_R7_PORT, LTDC_R7_PINSOURCE, GPIO_AF_LTDC);
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GPIO_InitStruct.GPIO_Pin = LTDC_R0_PIN;
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GPIO_Init(LTDC_R0_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_R1_PIN;
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GPIO_Init(LTDC_R1_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_R2_PIN;
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GPIO_Init(LTDC_R2_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_R3_PIN;
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GPIO_Init(LTDC_R3_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_R4_PIN;
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GPIO_Init(LTDC_R4_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_R5_PIN;
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GPIO_Init(LTDC_R5_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_R6_PIN;
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GPIO_Init(LTDC_R6_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_R7_PIN;
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GPIO_Init(LTDC_R7_PORT, &GPIO_InitStruct);
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// LCD 颜色 G 引脚配置
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GPIO_PinAFConfig(LTDC_G0_PORT, LTDC_G0_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_G1_PORT, LTDC_G1_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_G2_PORT, LTDC_G2_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_G3_PORT, LTDC_G3_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_G4_PORT, LTDC_G4_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_G5_PORT, LTDC_G5_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_G6_PORT, LTDC_G6_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_G7_PORT, LTDC_G7_PINSOURCE, GPIO_AF_LTDC);
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GPIO_InitStruct.GPIO_Pin = LTDC_G0_PIN;
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GPIO_Init(LTDC_G0_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_G1_PIN;
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GPIO_Init(LTDC_G1_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_G2_PIN;
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GPIO_Init(LTDC_G2_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_G3_PIN;
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GPIO_Init(LTDC_G3_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_G4_PIN;
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GPIO_Init(LTDC_G4_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_G5_PIN;
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GPIO_Init(LTDC_G5_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_G6_PIN;
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GPIO_Init(LTDC_G6_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_G7_PIN;
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GPIO_Init(LTDC_G7_PORT, &GPIO_InitStruct);
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// LCD 颜色 B 引脚配置
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GPIO_PinAFConfig(LTDC_B0_PORT, LTDC_B0_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_B1_PORT, LTDC_B1_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_B2_PORT, LTDC_B2_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_B3_PORT, LTDC_B3_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_B4_PORT, LTDC_B4_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_B5_PORT, LTDC_B5_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_B6_PORT, LTDC_B6_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_B7_PORT, LTDC_B7_PINSOURCE, GPIO_AF_LTDC);
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GPIO_InitStruct.GPIO_Pin = LTDC_B0_PIN;
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GPIO_Init(LTDC_B0_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_B1_PIN;
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GPIO_Init(LTDC_B1_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_B2_PIN;
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GPIO_Init(LTDC_B2_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_B3_PIN;
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GPIO_Init(LTDC_B3_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_B4_PIN;
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GPIO_Init(LTDC_B4_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_B5_PIN;
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GPIO_Init(LTDC_B5_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_B6_PIN;
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GPIO_Init(LTDC_B6_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_B7_PIN;
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GPIO_Init(LTDC_B7_PORT, &GPIO_InitStruct);
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// 控制线
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GPIO_PinAFConfig(LTDC_CLK_PORT, LTDC_CLK_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_HSYNC_PORT, LTDC_HSYNC_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_VSYNC_PORT, LTDC_VSYNC_PINSOURCE, GPIO_AF_LTDC);
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GPIO_PinAFConfig(LTDC_DE_PORT, LTDC_DE_PINSOURCE, GPIO_AF_LTDC);
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GPIO_InitStruct.GPIO_Pin = LTDC_CLK_PIN;
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GPIO_Init(LTDC_CLK_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_HSYNC_PIN;
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GPIO_Init(LTDC_HSYNC_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_VSYNC_PIN;
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GPIO_Init(LTDC_VSYNC_PORT, &GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = LTDC_DE_PIN;
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GPIO_Init(LTDC_DE_PORT, &GPIO_InitStruct);
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// 背光
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
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GPIO_InitStruct.GPIO_Pin = LTDC_Black_PIN;
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GPIO_Init(LTDC_Black_PORT, &GPIO_InitStruct);
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GPIO_SetBits(LTDC_Black_PORT, LTDC_Black_PIN);
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}
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void LCD_Backlight(u8 power) {
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if (power) {
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GPIO_SetBits(LTDC_Black_PORT, LTDC_Black_PIN);
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} else {
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GPIO_ResetBits(LTDC_Black_PORT, LTDC_Black_PIN);
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}
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}
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static u32 *LCD_ADDR = ((u32 *)(LCD_MemoryAdd + LCD_MemoryAdd_OFFSET * 0));
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static u32 *LCD_ADDR1 = ((u32 *)(LCD_MemoryAdd + LCD_MemoryAdd_OFFSET * 1));
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#define LCD_ADDR_BUFF0 \
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((u32)(LCD_MemoryAdd + (uint32_t)LCD_Width * LCD_Height * 4 * 0))
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#define LCD_ADDR_BUFF1 \
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((u32)(LCD_MemoryAdd + (uint32_t)LCD_Width * LCD_Height * 4 * 1))
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#define LCD_ADDR_BUFF2 \
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((u32)(LCD_MemoryAdd + (uint32_t)LCD_Width * LCD_Height * 4 * 2))
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const static u32 g_lcdAddrTable[3] = {
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(u32)LCD_ADDR_BUFF0,
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(u32)LCD_ADDR_BUFF1,
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(u32)LCD_ADDR_BUFF2,
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};
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static LCD_Struct g_lcd = {0};
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// 函数：初始化LCD控制器
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// 说明：在emWin初始化里被调用
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//
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void LCD_Init(void) {
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u16 LCD_PLLSAIN = 0; // 用于倍频的PLLSAIN参数，可取范围为50~432
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u8 LCD_PLLSAIR = 3; // 用于分频的PLLSAIR参数，可取范围为2~7
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u8 LCD_CLKDIV =
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8; // LCD时钟分频参数，默认设置为8分频，数值上等于RCC_PLLSAIDivR_Div8
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LTDC_InitTypeDef LTDC_InitStruct;
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_LTDC, ENABLE);
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2D, ENABLE);
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LCD_GPIO_Config(); // 初始化LCD引脚
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LCD_PLLSAIN =
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LCD_CLK * LCD_PLLSAIR *
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LCD_CLKDIV; // 根据需要使用的LCD时钟计算PLLSAIN参数，可取范围为50~432
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RCC_PLLSAIConfig(LCD_PLLSAIN, 7, LCD_PLLSAIR); // 时钟配置
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RCC_LTDCCLKDivConfig(
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RCC_PLLSAIDivR_Div8); // LCD时钟分频设置，要和LCD_CLKDIV对应
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RCC_PLLSAICmd(ENABLE); // 使能PLLSAI时钟
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while (RCC_GetFlagStatus(RCC_FLAG_PLLSAIRDY) == RESET)
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; // 等待时钟配置完成
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LTDC_InitStruct.LTDC_HSPolarity = LTDC_HSPolarity_AL;
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LTDC_InitStruct.LTDC_VSPolarity = LTDC_VSPolarity_AL;
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LTDC_InitStruct.LTDC_DEPolarity = LTDC_DEPolarity_AL;
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LTDC_InitStruct.LTDC_PCPolarity = LTDC_PCPolarity_IPC;
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LTDC_InitStruct.LTDC_BackgroundRedValue = 0;
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LTDC_InitStruct.LTDC_BackgroundGreenValue = 0;
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LTDC_InitStruct.LTDC_BackgroundBlueValue = 0;
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LTDC_InitStruct.LTDC_HorizontalSync = HSW;
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LTDC_InitStruct.LTDC_VerticalSync = VSW;
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LTDC_InitStruct.LTDC_AccumulatedHBP = HBP;
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LTDC_InitStruct.LTDC_AccumulatedVBP = VBP;
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LTDC_InitStruct.LTDC_AccumulatedActiveW = LCD_Width + HBP;
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LTDC_InitStruct.LTDC_AccumulatedActiveH = LCD_Height + VBP;
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LTDC_InitStruct.LTDC_TotalWidth = LCD_Width + HBP + HFP;
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LTDC_InitStruct.LTDC_TotalHeigh = LCD_Height + VBP + VFP;
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LTDC_Init(<DC_InitStruct); // 初始化LCD控制器
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LTDC_ITConfig(LTDC_IT_LI, ENABLE);
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NVIC_SetPriority(LTDC_IRQn, 0);
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NVIC_EnableIRQ(LTDC_IRQn);
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LTDC_Cmd(ENABLE); // 使能LCD控制器
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LCD_LayerInit();
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g_lcd.x_size = LCD_Width;
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g_lcd.y_size = LCD_Height;
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g_lcd.show = (u16 *)g_lcdAddrTable[0];
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g_lcd.draw = (u16 *)g_lcdAddrTable[1];
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LCD_SetWindow(0, 0, g_lcd.x_size, g_lcd.y_size);
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g_lcd.bkColor = 0x0;
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}
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// 函数：LCD层设置初始化
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//
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void LCD_LayerInit(void) {
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LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct;
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LTDC_Layer_InitStruct.LTDC_HorizontalStart = HBP + 1;
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LTDC_Layer_InitStruct.LTDC_HorizontalStop = (LCD_Width + HBP);
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LTDC_Layer_InitStruct.LTDC_VerticalStart = VBP + 1;
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LTDC_Layer_InitStruct.LTDC_VerticalStop = (LCD_Height + VBP);
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// LTDC_Layer_InitStruct.LTDC_PixelFormat = LTDC_Pixelformat_ARGB8888;
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// //像素格式设置
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LTDC_Layer_InitStruct.LTDC_PixelFormat =
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LTDC_Pixelformat_RGB565; // 像素格式设置
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LTDC_Layer_InitStruct.LTDC_ConstantAlpha = 255;
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LTDC_Layer_InitStruct.LTDC_DefaultColorBlue = 0; // 默认的颜色
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LTDC_Layer_InitStruct.LTDC_DefaultColorGreen = 0;
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LTDC_Layer_InitStruct.LTDC_DefaultColorRed = 0;
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LTDC_Layer_InitStruct.LTDC_DefaultColorAlpha = 0;
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LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_CA;
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LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_CA;
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LTDC_Layer_InitStruct.LTDC_CFBLineNumber = LCD_Height; // 显示区域的行数
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LTDC_Layer_InitStruct.LTDC_CFBStartAdress = LCD_MemoryAdd; // 第一层的起始地址
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// 这里ARGB8888和RGB888使用相同的计算方式
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{
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LTDC_Layer_InitStruct.LTDC_CFBLineLength =
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((LCD_Width * 2) + 3); // 每行的像素占的总字节数
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LTDC_Layer_InitStruct.LTDC_CFBPitch =
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(LCD_Width * 2); // 行间距，某像素的起始处到下一行的起始处的增量
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}
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LTDC_LayerInit(LTDC_Layer1, <DC_Layer_InitStruct); // 初始化层1
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LTDC_LayerCmd(LTDC_Layer1, ENABLE); // 使能层1
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#if (LCD_NUM_LAYERS == 2) // 当定义了双层时
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LTDC_Layer_InitStruct.LTDC_PixelFormat = ColorMode_1; // 像素格式设置
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LTDC_Layer_InitStruct.LTDC_BlendingFactor_1 = LTDC_BlendingFactor1_PAxCA;
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LTDC_Layer_InitStruct.LTDC_BlendingFactor_2 = LTDC_BlendingFactor2_PAxCA;
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LTDC_Layer_InitStruct.LTDC_CFBStartAdress =
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LCD_MemoryAdd + LCD_MemoryAdd_OFFSET; // 层2的起始地址
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if (ColorMode_1 == LCD_RGB565 || ColorMode_1 == LCD_ARGB1555) // 判断颜色格式
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{
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LTDC_Layer_InitStruct.LTDC_CFBLineLength =
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((LCD_Width * 2) + 3); // 每行的像素占的总字节数
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LTDC_Layer_InitStruct.LTDC_CFBPitch =
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(LCD_Width * 2); // 行间距，某像素的起始处到下一行的起始处的增量
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} else // 这里ARGB8888和RGB888使用相同的计算方式
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{
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LTDC_Layer_InitStruct.LTDC_CFBLineLength =
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((LCD_Width * 4) + 3); // 每行的像素占的总字节数
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LTDC_Layer_InitStruct.LTDC_CFBPitch =
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(LCD_Width * 4); // 行间距，某像素的起始处到下一行的起始处的增量
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}
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LTDC_LayerInit(LTDC_Layer2, <DC_Layer_InitStruct); // 初始化层2
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LTDC_LayerCmd(LTDC_Layer2, ENABLE); // 使能层2
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#endif
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LTDC_ReloadConfig(LTDC_IMReload); // 重新载入参数
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LTDC_DitherCmd(
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ENABLE); // 使能颜色抖动，24位色必须打开，否则无法达到24位色的效果
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}
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void LTDC_ISR_Handler(void) {
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LTDC_ClearFlag(LTDC_FLAG_LI);
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if (g_lcd.LcdSwitchEn == 1) {
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g_lcd.LcdSwitchEn = 0;
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LTDC_Layer1->CFBAR = (u32)g_lcd.show;
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LTDC->SRCR = 1;
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}
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}
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static int LCD_UpDataWindow(void) {
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LCD_WindowStruct *win = &g_lcd.win;
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LCD_WindowStruct *draw = &g_lcd.realwin;
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int real = 1;
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if (win->xs >= 0 && win->xs < g_lcd.x_size)
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draw->xs = win->xs;
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else if (win->xs < 0)
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draw->xs = 0;
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else if (win->xs >= g_lcd.x_size)
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real = 0; // 在显示区域外
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if (win->ys >= 0 && win->ys < g_lcd.y_size)
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draw->ys = win->ys;
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else if (win->ys < 0)
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draw->ys = 0;
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else if (win->ys >= g_lcd.y_size)
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real = 0; // 在显示区域外
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if (win->xe >= 0 && win->xe < g_lcd.x_size)
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draw->xe = win->xe;
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else if (win->xe < 0)
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real = 0; // 在显示区域外
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else if (win->xe >= g_lcd.x_size)
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draw->xe = g_lcd.x_size - 1;
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if (win->ye >= 0 && win->ye < g_lcd.y_size)
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draw->ye = win->ye;
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else if (win->ye < 0)
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real = 0; // 在显示区域外
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else if (win->ye >= g_lcd.y_size)
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draw->ye = g_lcd.y_size - 1;
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if ((win->xs > win->xe) || (win->ys > win->ye))
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real = 0;
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g_lcd.effective = real;
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return real;
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}
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// 设置活动窗口
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void LCD_SetWindow(int x_s, int y_s, int x_size, int y_size) {
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g_lcd.win.xs = x_s;
|
||
g_lcd.win.ys = y_s;
|
||
g_lcd.win.xe = x_s + x_size - 1;
|
||
g_lcd.win.ye = y_s + y_size - 1;
|
||
LCD_UpDataWindow();
|
||
}
|
||
|
||
int LCD_GetLcdSizeX(void) { return LCD_Width; }
|
||
|
||
int LCD_GetLcdSizeY(void) { return LCD_Height; }
|
||
|
||
// 获取图像显示地址
|
||
u32 *LCD_GetShowAddr(void) {
|
||
uint32_t *ret = (u32 *)LTDC_Layer1->CFBAR;
|
||
ret = (u32 *)g_lcd.show;
|
||
return ret;
|
||
}
|
||
|
||
// 获取图像绘制地址
|
||
u32 *LCD_GetDrawAddr(void) {
|
||
uint32_t *ret = 0;
|
||
ret = (u32 *)g_lcd.draw;
|
||
return ret;
|
||
}
|
||
|
||
// 设置屏幕显示地址,这个地址直接输出到屏幕上,返回上一个输出到屏幕的地址
|
||
u32 LCD_SetLayer(u32 AddrIndex) {
|
||
uint32_t ret = LTDC_Layer1->CFBAR;
|
||
if (AddrIndex < 3) {
|
||
g_lcd.show = (u16 *)g_lcdAddrTable[AddrIndex];
|
||
LTDC_Layer1->CFBAR = g_lcdAddrTable[AddrIndex];
|
||
LTDC->SRCR = 1;
|
||
}
|
||
for (int i = 0; i < 3; i++) {
|
||
if (ret == g_lcdAddrTable[i]) {
|
||
ret = i;
|
||
break;
|
||
}
|
||
}
|
||
if (ret >= 3)
|
||
ret = 0;
|
||
return ret;
|
||
}
|
||
|
||
// 设置绘图地址，所有绘制操作在这个地址执行
|
||
u32 LCD_SetDrawLayer(u32 Index) {
|
||
u32 ret = (u32)g_lcd.draw;
|
||
if (Index < 3) {
|
||
g_lcd.draw = (u16 *)g_lcdAddrTable[Index];
|
||
}
|
||
for (int i = 0; i < 3; i++) {
|
||
if (ret == g_lcdAddrTable[i]) {
|
||
ret = i;
|
||
break;
|
||
}
|
||
}
|
||
if (ret >= 3)
|
||
ret = 0;
|
||
return ret;
|
||
}
|
||
|
||
u32 LCD_SetLcdColor(u32 color) {
|
||
u32 ret = g_lcd.color;
|
||
// g_lcd_struct.Color=color;
|
||
g_lcd.color = COLOR888TO565(color);
|
||
return ret;
|
||
}
|
||
|
||
u32 LCD_SetLcdBkColor(u32 color) {
|
||
u32 ret = g_lcd.bkColor;
|
||
// g_lcd_struct.BackColor=color;
|
||
ret = g_lcd.bkColor = COLOR888TO565(color);
|
||
return ret;
|
||
}
|
||
|
||
u32 LCD_SetLcdColor16(u32 color) {
|
||
u32 ret = g_lcd.color;
|
||
g_lcd.color = (color);
|
||
return ret;
|
||
}
|
||
|
||
u32 LCD_SetLcdBkColor16(u32 color) {
|
||
u32 ret = ret = g_lcd.bkColor;
|
||
ret = g_lcd.bkColor = (color);
|
||
return ret;
|
||
}
|
||
|
||
u32 LCD_GetLcdColor(void) {
|
||
u32 ret = g_lcd.color;
|
||
return COLOR565TO888(ret);
|
||
}
|
||
|
||
u32 LCD_GetLcdBkColor(void) {
|
||
u32 ret = g_lcd.bkColor;
|
||
return COLOR565TO888(ret);
|
||
}
|
||
|
||
u32 LCD_GetLcdColor16(void) {
|
||
u32 ret = g_lcd.color;
|
||
return ret;
|
||
}
|
||
|
||
u32 LCD_GetLcdBkColor16(void) {
|
||
u32 ret = g_lcd.bkColor;
|
||
return ret;
|
||
}
|
||
|
||
// 设置绘制模式，1，不绘制背景，0，绘制背景
|
||
void LCD_SetLcdDrawMode(int mode) {
|
||
if (mode) {
|
||
// g_lcd.DrawMode=1;//此时调用画点函数时不绘制背景色
|
||
} else {
|
||
// g_lcd.DrawMode=0;
|
||
}
|
||
}
|
||
|
||
static void LCD_DmaCopy(void *pSrc, void *pDst, uint32_t x_size,
|
||
uint32_t y_size) {
|
||
DMA2D_DeInit();
|
||
/* Set up mode */
|
||
|
||
DMA2D->CR =
|
||
0x00010000UL | (1 << 9); /* Control Register (Memory to memory with pixel
|
||
format conversion and TCIE) */
|
||
|
||
/* Set up pointers */
|
||
DMA2D->FGMAR =
|
||
(uint32_t)pSrc; /* Foreground Memory Address Register (Source address) */
|
||
DMA2D->OMAR =
|
||
(uint32_t)pDst; /* Output Memory Address Register (Destination address) */
|
||
|
||
/* Set up offsets */
|
||
DMA2D->FGOR = 0; /* Foreground Offset Register (Source line offset) */
|
||
DMA2D->OOR = 0; /* Output Offset Register (Destination line offset) */
|
||
|
||
/* Set up pixel format */
|
||
DMA2D->FGPFCCR =
|
||
LTDC_Pixelformat_RGB565; /* Foreground PFC Control Register (Defines the
|
||
input pixel format) */
|
||
DMA2D->OPFCCR =
|
||
LTDC_Pixelformat_RGB565; /* Output PFC Control Register (Defines the
|
||
output pixel format) */
|
||
|
||
/* Set up size */
|
||
DMA2D->NLR = (uint32_t)(x_size << 16) |
|
||
y_size; /* Number of Line Register (Size configuration of area to
|
||
be transfered) */
|
||
|
||
/* Execute operation */
|
||
DMA2D->CR |= DMA2D_CR_START;
|
||
|
||
while (DMA2D->CR & DMA2D_CR_START) {
|
||
}
|
||
}
|
||
|
||
static void LCD_FillColor(void *pDst, int x, int y, int x_size, int y_size,
|
||
u32 color) {
|
||
DMA2D_DeInit();
|
||
|
||
DMA2D->OPFCCR = DMA2D_RGB565;
|
||
|
||
DMA2D->CR = DMA2D_R2M;
|
||
DMA2D->OCOLR = color;
|
||
DMA2D->OMAR = (u32)pDst + (y * LCD_Width + x) * 2;
|
||
DMA2D->OOR = LCD_Width - x_size;
|
||
DMA2D->NLR = (x_size << 16) | y_size;
|
||
|
||
/* Execute operation */
|
||
DMA2D->CR |= DMA2D_CR_START;
|
||
|
||
while (DMA2D->CR & DMA2D_CR_START) {
|
||
}
|
||
}
|
||
|
||
void LCD_FillImg(const u16 *pSurf, int x, int y, u16 w, u16 h, int width_bytes,
|
||
const u8 *bits) {
|
||
|
||
DMA2D_DeInit();
|
||
|
||
DMA2D->OPFCCR = DMA2D_RGB565;
|
||
|
||
DMA2D->CR = DMA2D_M2M;
|
||
|
||
DMA2D->OMAR = (u32)pSurf + (y * LCD_Width + x) * 2;
|
||
DMA2D->OOR = LCD_Width - w;
|
||
|
||
DMA2D->NLR = (w << 16) | h;
|
||
|
||
DMA2D->FGPFCCR = CM_RGB565;
|
||
DMA2D->FGMAR = (u32)bits;
|
||
DMA2D->FGOR = (width_bytes >> 1) - w;
|
||
|
||
/* Execute operation */
|
||
DMA2D->CR |= DMA2D_CR_START;
|
||
|
||
while (DMA2D->CR & DMA2D_CR_START) {
|
||
}
|
||
}
|
||
|
||
// 层复制
|
||
void LCD_LayerCopy(int dst, int src) {
|
||
u32 *p_dst = 0;
|
||
u32 *p_src = 0;
|
||
if ((dst < 3) && (src < 3)) {
|
||
p_dst = (u32 *)g_lcdAddrTable[dst];
|
||
p_src = (u32 *)g_lcdAddrTable[src];
|
||
LCD_DmaCopy(p_src, p_dst, LCD_Width, LCD_Height);
|
||
}
|
||
}
|
||
|
||
// 开始在缓冲区绘制
|
||
void LCD_LayerBufferOn(void) {
|
||
// 为了兼容以前的窗口，保留这个空函数，2019.12.26
|
||
}
|
||
|
||
// 显示缓冲层
|
||
void LCD_LayerBuffShow(void) {
|
||
// 为了兼容以前的窗口，保留这个空函数，2019.12.26
|
||
}
|
||
|
||
// 进入缓冲区
|
||
void LCD_EnterLayerBuff(void) {
|
||
if (g_lcd.LayerBuffEnter != 0)
|
||
return;
|
||
g_lcd.LayerBuffEnter++;
|
||
|
||
// while(LCD_GetLayerUpdataStat()==0);
|
||
if (g_lcd.LcdSwitchEn == 1) {
|
||
// 如果上次更改还没来得及刷新，不刷新了，这次更改之后一起刷新
|
||
// 如果应用程序中屏幕刷新太快，会造成丢帧
|
||
g_lcd.LcdSwitchEn = 0;
|
||
} else {
|
||
// 刷新了之后，lcd显示区和绘图区是同一段内存，需要错开
|
||
if ((u32)g_lcd.show == g_lcdAddrTable[0]) {
|
||
g_lcd.draw = (u16 *)g_lcdAddrTable[1];
|
||
LCD_LayerCopy(1, 0);
|
||
} else if ((u32)g_lcd.show == g_lcdAddrTable[1]) {
|
||
g_lcd.draw = (u16 *)g_lcdAddrTable[0];
|
||
LCD_LayerCopy(0, 1);
|
||
}
|
||
}
|
||
}
|
||
|
||
// 切换层，不用复制显示，播放视频时用
|
||
void LCD_SwitchLayerBuff(void) {
|
||
if (g_lcd.LayerBuffEnter != 0)
|
||
return;
|
||
g_lcd.LayerBuffEnter++;
|
||
if (g_lcd.LcdSwitchEn == 1) {
|
||
// 如果上次更改还没来得及刷新，不刷新了，这次更改之后一起刷新
|
||
// 如果应用程序中屏幕刷新太快，会造成丢帧
|
||
g_lcd.LcdSwitchEn = 0;
|
||
} else {
|
||
// 刷新了之后，lcd显示区和绘图区是同一段内存，需要错开
|
||
if ((u32)g_lcd.show == g_lcdAddrTable[0]) {
|
||
g_lcd.draw = (u16 *)g_lcdAddrTable[1];
|
||
} else if ((u32)g_lcd.show == g_lcdAddrTable[1]) {
|
||
g_lcd.draw = (u16 *)g_lcdAddrTable[0];
|
||
}
|
||
}
|
||
}
|
||
|
||
// 退出缓冲区
|
||
void LCD_ExitLayerBuff(void) {
|
||
g_lcd.show = g_lcd.draw;
|
||
g_lcd.LcdSwitchEn = 1;
|
||
g_lcd.LayerBuffEnter = 0;
|
||
}
|
||
|
||
// 获取屏幕刷新状态，1，已刷新
|
||
int LCD_GetLayerUpdataStat(void) { return !g_lcd.LcdSwitchEn; }
|
||
|
||
// 填充一条线,以窗口的起点为起点，最大填充到窗口的终点位置
|
||
static void LCD_FillLine16(int x, int y, int xe, u16 *buff, int xsize) {
|
||
if (g_lcd.effective == 0)
|
||
return;
|
||
x += g_lcd.win.xs;
|
||
xe += g_lcd.win.xs;
|
||
if ((y < g_lcd.realwin.ys) || (y > g_lcd.realwin.ye))
|
||
return;
|
||
if ((x + xsize - 1 < g_lcd.realwin.xs) || x > g_lcd.realwin.xe)
|
||
return;
|
||
int mx = x;
|
||
if (mx < g_lcd.realwin.xs)
|
||
mx = g_lcd.realwin.xs;
|
||
buff += mx - x;
|
||
xsize -= mx - x;
|
||
// 不超过指定范围
|
||
// if (mx + xsize - 1 > xe) xsize=xe - mx + 1;
|
||
if (xsize > g_lcd.realwin.xe - mx + 1)
|
||
xsize = g_lcd.realwin.xe - mx + 1;
|
||
for (int i = 0; i < xsize; i++)
|
||
g_lcd.draw[mx + y * g_lcd.x_size + i] = (buff[i]);
|
||
}
|
||
|
||
// 把图像填充到屏幕的活动窗口中，
|
||
// 参数xsize,图像的宽度
|
||
// 参数ysize,图像的高度
|
||
static void LCD_FillRect16(int xs, int ys, int xe, int ye, u16 *buff, int xsize,
|
||
int ysize) {
|
||
ys += g_lcd.win.ys;
|
||
ye += g_lcd.win.ys;
|
||
xs += g_lcd.win.xs;
|
||
xe += g_lcd.win.xs;
|
||
|
||
// for (int y = ys; y<=ye; y++)
|
||
// {
|
||
// LCD_FillLine16( xs,y,xe,buff, xsize);
|
||
// buff += xsize;
|
||
// }
|
||
if (ye < g_lcd.realwin.ys || ys > g_lcd.realwin.ye)
|
||
return;
|
||
if (xe < g_lcd.realwin.xs || xs > g_lcd.realwin.xe)
|
||
return;
|
||
|
||
if (ys < g_lcd.realwin.ys) {
|
||
buff += (g_lcd.realwin.ys - ys) * xsize;
|
||
ysize -= g_lcd.realwin.ys - ys;
|
||
if (ysize < 0)
|
||
return;
|
||
ys = g_lcd.realwin.ys;
|
||
}
|
||
if (xs < g_lcd.realwin.xs) {
|
||
buff += (g_lcd.realwin.xs - xs);
|
||
xsize -= g_lcd.realwin.xs - xs;
|
||
if (xsize < 0)
|
||
return;
|
||
xs = g_lcd.realwin.xs;
|
||
}
|
||
|
||
int lcd_xsize = xe - xs + 1;
|
||
if (lcd_xsize > xsize)
|
||
lcd_xsize = xsize;
|
||
if (ysize > ye - ys + 1)
|
||
ysize = ye - ys + 1;
|
||
if (lcd_xsize > 0 && ysize > 0)
|
||
LCD_FillImg(g_lcd.draw, xs, ys, lcd_xsize, ysize, xsize * 2, (u8 *)buff);
|
||
// DMA2D_DrawBitmap_RGB565(LCD_GetDrawAddr(),g_lcd_struct.WindowSrcX,g_lcd_struct.WindowSrcY,lcd_xsize,ysize,xsize*2,(u8*)buff);
|
||
}
|
||
|
||
// 把图像偏移之后填充到屏幕的活动窗口中，
|
||
// 参数x_s,图像要显示的横向起始坐标
|
||
// 参数y_s，图像要显示的纵向起始坐标
|
||
// 参数xsize,图像的宽度
|
||
// 参数ysize,图像的高度
|
||
static void LCD_FillRectOff16(int xs, int ys, int xe, int ye, u16 *buff,
|
||
int x_s, int y_s, int xsize, int ysize) {
|
||
// 图像偏移
|
||
int offset = y_s * xsize + x_s;
|
||
// 图像相对屏幕偏移
|
||
// offset += xs + ys*xsize;
|
||
LCD_FillRect16(xs, ys, xe, ye, buff + offset, xsize, ysize - y_s);
|
||
}
|
||
|
||
void LCD_FillRectOff16At(int lcd_xs, int lcd_ys, int lcd_xsize, int lcd_ysize,
|
||
u16 *buff, int xs, int ys, int xsize, int ysize) {
|
||
// 绘图
|
||
LCD_FillRectOff16(lcd_xs, lcd_ys, lcd_xs + lcd_xsize - 1,
|
||
lcd_ys + lcd_ysize - 1, buff, xs, ys, xsize, ysize);
|
||
}
|
||
|
||
static int LCD_FillImg_ARGB(const void *pSurf, int x, int y, u16 w, u16 h,
|
||
int width_bytes, const u8 *bits, u32 color_format);
|
||
|
||
// 把图像填充到屏幕的活动窗口中，
|
||
// 参数xsize,图像的宽度
|
||
// 参数ysize,图像的高度
|
||
static void LCD_FillRectAlpha(int xs, int ys, int xe, int ye, u32 *buff,
|
||
int xsize, int ysize) {
|
||
ys += g_lcd.win.ys;
|
||
ye += g_lcd.win.ys;
|
||
xs += g_lcd.win.xs;
|
||
xe += g_lcd.win.xs;
|
||
|
||
if (ye < g_lcd.realwin.ys || ys > g_lcd.realwin.ye)
|
||
return;
|
||
if (xe < g_lcd.realwin.xs || xs > g_lcd.realwin.xe)
|
||
return;
|
||
|
||
if (ys < g_lcd.realwin.ys) {
|
||
buff += (g_lcd.realwin.ys - ys) * xsize;
|
||
ysize -= g_lcd.realwin.ys - ys;
|
||
if (ysize < 0)
|
||
return;
|
||
ys = g_lcd.realwin.ys;
|
||
}
|
||
if (xs < g_lcd.realwin.xs) {
|
||
buff += (g_lcd.realwin.xs - xs);
|
||
xsize -= g_lcd.realwin.xs - xs;
|
||
if (xsize < 0)
|
||
return;
|
||
xs = g_lcd.realwin.xs;
|
||
}
|
||
|
||
int lcd_xsize = xe - xs + 1;
|
||
if (lcd_xsize > xsize)
|
||
lcd_xsize = xsize;
|
||
if (ysize > ye - ys + 1)
|
||
ysize = ye - ys + 1;
|
||
if (lcd_xsize > 0 && ysize > 0)
|
||
LCD_FillImg_ARGB(g_lcd.draw, xs, ys, lcd_xsize, ysize, xsize * 4,
|
||
(u8 *)buff, CM_ARGB8888);
|
||
}
|
||
|
||
static void LCD_FillRectOffAlpha(int xs, int ys, int xe, int ye, u32 *buff,
|
||
int x_s, int y_s, int xsize, int ysize) {
|
||
// 图像偏移
|
||
int offset = y_s * xsize + x_s;
|
||
// 图像相对屏幕偏移
|
||
// offset += xs + ys*xsize;
|
||
LCD_FillRectAlpha(xs, ys, xe, ye, buff + offset, xsize, ysize - y_s);
|
||
}
|
||
|
||
void LCD_FillRectOffAtAlpha(int lcd_xs, int lcd_ys, int lcd_xsize,
|
||
int lcd_ysize, void *buff, int xs, int ys,
|
||
int xsize, int ysize) {
|
||
// 绘图
|
||
LCD_FillRectOffAlpha(lcd_xs, lcd_ys, lcd_xs + lcd_xsize - 1,
|
||
lcd_ys + lcd_ysize - 1, buff, xs, ys, xsize, ysize);
|
||
}
|
||
|
||
// 画点，不会进行安全性检查，调用时要保证要画的点不会超出屏幕
|
||
// 参数mode,1，画前景色，0，画背景色
|
||
void LCD_DrawPoint(int x, int y, u32 mode) {
|
||
if (g_lcd.effective == 0)
|
||
return;
|
||
x += g_lcd.win.xs;
|
||
y += g_lcd.win.ys;
|
||
if (x < g_lcd.realwin.xs || x > g_lcd.realwin.xe)
|
||
return;
|
||
if (y < g_lcd.realwin.ys || y > g_lcd.realwin.ye)
|
||
return;
|
||
if (mode)
|
||
g_lcd.draw[x + y * g_lcd.x_size] = g_lcd.color;
|
||
}
|
||
|
||
// 安全画点，以屏幕窗口的坐标为原点，并且画点不会超出窗口范围
|
||
void LCD_DrawPointSafe(int x, int y, u32 mode) {
|
||
if (g_lcd.effective == 0)
|
||
return;
|
||
x += g_lcd.win.xs;
|
||
y += g_lcd.win.ys;
|
||
if (x < g_lcd.realwin.xs || x > g_lcd.realwin.xe)
|
||
return;
|
||
if (y < g_lcd.realwin.ys || y > g_lcd.realwin.ye)
|
||
return;
|
||
if (mode)
|
||
g_lcd.draw[x + y * g_lcd.x_size] = g_lcd.color;
|
||
}
|
||
|
||
// 安全画点，以屏幕窗口的坐标为原点，并且画点不会超出窗口范围
|
||
// 以指定颜色画点，而不是前景色
|
||
void LCD_DrawPointSafeColor(int x, int y, u16 color) {
|
||
if (g_lcd.effective == 0)
|
||
return;
|
||
x += g_lcd.win.xs;
|
||
y += g_lcd.win.ys;
|
||
if (x < g_lcd.realwin.xs || x > g_lcd.realwin.xe)
|
||
return;
|
||
if (y < g_lcd.realwin.ys || y > g_lcd.realwin.ye)
|
||
return;
|
||
g_lcd.draw[x + y * g_lcd.x_size] = (color);
|
||
}
|
||
|
||
// 快速ALPHA BLENDING算法.
|
||
// src:源颜色
|
||
// dst:目标颜色
|
||
// alpha:透明程度(0~32)
|
||
// 返回值:混合后的颜色.
|
||
static u16 alpha_blend565(u16 src, u16 dst, u8 alpha) {
|
||
u32 src2;
|
||
u32 dst2;
|
||
// Convert to 32bit |-----GGGGGG-----RRRRR------BBBBB|
|
||
src2 = ((src << 16) | src) & 0x07E0F81F;
|
||
dst2 = ((dst << 16) | dst) & 0x07E0F81F;
|
||
// Perform blending R:G:B with alpha in range 0..32
|
||
// Note that the reason that alpha may not exceed 32 is that there are only
|
||
// 5bits of space between each R:G:B value, any higher value will overflow
|
||
// into the next component and deliver ugly result.
|
||
dst2 = ((((dst2 - src2) * alpha) >> 5) + src2) & 0x07E0F81F;
|
||
return (dst2 >> 16) | dst2;
|
||
}
|
||
|
||
// 以指定色透明度画点0~32
|
||
void LCD_DrawPointSafeColorAlpha(int x, int y, u16 color, u8 alpha) {
|
||
if (g_lcd.effective == 0)
|
||
return;
|
||
if (alpha == 0)
|
||
return;
|
||
x += g_lcd.win.xs;
|
||
y += g_lcd.win.ys;
|
||
if (x < g_lcd.realwin.xs || x > g_lcd.realwin.xe)
|
||
return;
|
||
if (y < g_lcd.realwin.ys || y > g_lcd.realwin.ye)
|
||
return;
|
||
|
||
u32 color_old = g_lcd.draw[x + y * g_lcd.x_size];
|
||
color_old = (color_old);
|
||
color = alpha_blend565(color_old, color, alpha);
|
||
g_lcd.draw[x + y * g_lcd.x_size] = (color);
|
||
}
|
||
|
||
// 填充矩形，已窗口坐标为原点
|
||
void LCD_FillRectByColor(int x, int y, int x_size, int y_size) {
|
||
if (g_lcd.effective == 0)
|
||
return;
|
||
x += g_lcd.win.xs;
|
||
y += g_lcd.win.ys;
|
||
int xe = x + x_size - 1;
|
||
int ye = y + y_size - 1;
|
||
if (x < g_lcd.realwin.xs)
|
||
x = g_lcd.realwin.xs;
|
||
if (y < g_lcd.realwin.ys)
|
||
y = g_lcd.realwin.ys;
|
||
if (xe > g_lcd.realwin.xe)
|
||
xe = g_lcd.realwin.xe;
|
||
if (ye > g_lcd.realwin.ye)
|
||
ye = g_lcd.realwin.ye;
|
||
x_size = xe - x + 1;
|
||
y_size = ye - y + 1;
|
||
|
||
if (x_size < 0 || y_size < 0)
|
||
return;
|
||
|
||
LCD_FillColor(g_lcd.draw, x, y, x_size, y_size, g_lcd.color);
|
||
}
|
||
|
||
static int LCD_MemSet(const void *pSurf, u16 w, u16 h, u32 color) {
|
||
|
||
DMA2D_DeInit();
|
||
DMA2D->OPFCCR = DMA2D_ARGB8888;
|
||
|
||
DMA2D->CR = DMA2D_R2M;
|
||
// DMA2D->OPFCCR = DMA2D_RGB565;
|
||
DMA2D->OCOLR = color;
|
||
DMA2D->OMAR = (u32)pSurf;
|
||
DMA2D->OOR = 0;
|
||
DMA2D->NLR = (w << 16) | h;
|
||
|
||
/* Execute operation */
|
||
DMA2D->CR |= DMA2D_CR_START;
|
||
|
||
while (DMA2D->CR & DMA2D_CR_START) {
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
static int LCD_FillImg_ARGB(const void *pSurf, int x, int y, u16 w, u16 h,
|
||
int width_bytes, const u8 *bits, u32 color_format) {
|
||
|
||
DMA2D_DeInit();
|
||
|
||
DMA2D->OPFCCR = DMA2D_RGB565;
|
||
DMA2D->BGPFCCR = CM_RGB565;
|
||
|
||
DMA2D->CR = DMA2D_M2M_BLEND;
|
||
DMA2D->OMAR = (u32)pSurf + (y * LCD_Width + x) * 2;
|
||
DMA2D->OOR = LCD_Width - w;
|
||
|
||
DMA2D->NLR = (w << 16) | h;
|
||
|
||
DMA2D->BGMAR = DMA2D->OMAR;
|
||
DMA2D->BGOR = DMA2D->OOR;
|
||
|
||
DMA2D->FGPFCCR = NO_MODIF_ALPHA_VALUE | color_format;
|
||
DMA2D->FGMAR = (u32)bits;
|
||
|
||
switch (color_format) {
|
||
case CM_ARGB4444:
|
||
DMA2D->FGOR = (width_bytes >> 1) - w;
|
||
break;
|
||
case CM_ARGB8888:
|
||
DMA2D->FGOR = (width_bytes >> 2) - w;
|
||
break;
|
||
default:
|
||
return 0;
|
||
}
|
||
|
||
DMA2D->CR |= DMA2D_CR_START;
|
||
|
||
while (DMA2D->CR & DMA2D_CR_START) {
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
// 以透明度填充矩形，已窗口坐标为原点
|
||
void LCD_FillRectByColorAlpha(int x, int y, int x_size, int y_size, u8 alpha) {
|
||
if (g_lcd.effective == 0)
|
||
return;
|
||
x += g_lcd.win.xs;
|
||
y += g_lcd.win.ys;
|
||
int xe = x + x_size - 1;
|
||
int ye = y + y_size - 1;
|
||
if (x < g_lcd.realwin.xs)
|
||
x = g_lcd.realwin.xs;
|
||
if (y < g_lcd.realwin.ys)
|
||
y = g_lcd.realwin.ys;
|
||
if (xe > g_lcd.realwin.xe)
|
||
xe = g_lcd.realwin.xe;
|
||
if (ye > g_lcd.realwin.ye)
|
||
ye = g_lcd.realwin.ye;
|
||
x_size = xe - x + 1;
|
||
y_size = ye - y + 1;
|
||
|
||
if (x_size < 0 || y_size < 0)
|
||
return;
|
||
|
||
u8 *fb = mymalloc(x_size * y_size * 4);
|
||
LCD_MemSet(fb, x_size, y_size,
|
||
COLOR565TO888(g_lcd.color) | (alpha << (24 + 3)));
|
||
|
||
LCD_FillImg_ARGB(LCD_GetDrawAddr(), x, y, x_size, y_size, x_size * 4, fb,
|
||
CM_ARGB8888);
|
||
myfree(fb);
|
||
}
|
||
|
||
// 求矩形在屏幕中的显示区域
|
||
static int LCD_RectIntersection(LCD_WindowStruct *out, int x, int y, int xsize,
|
||
int ysize) {
|
||
// 取得新矩形的左上角
|
||
int x_s = g_lcd.realwin.xs;
|
||
int y_s = g_lcd.realwin.ys;
|
||
if (x_s < x)
|
||
x_s = x;
|
||
if (y_s < y)
|
||
y_s = y;
|
||
|
||
// 取得新矩形的右下角
|
||
int x_e = g_lcd.realwin.xe;
|
||
int y_e = g_lcd.realwin.ye;
|
||
if (x_e > x + xsize - 1)
|
||
x_e = x + xsize - 1;
|
||
if (y_e > y + ysize - 1)
|
||
y_e = y + ysize - 1;
|
||
out->xs = x_s;
|
||
out->ys = y_s;
|
||
out->xe = x_e;
|
||
out->ye = y_e;
|
||
|
||
if ((y_e >= y_s) && (x_e >= x_s)) {
|
||
return 1;
|
||
} else {
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
// 清除矩形内的显示
|
||
void LCD_ClearRect(int x, int y, int xsize, int ysize) {
|
||
if (g_lcd.effective == 0)
|
||
return;
|
||
x += g_lcd.win.xs;
|
||
y += g_lcd.win.ys;
|
||
LCD_WindowStruct out = {0};
|
||
if (LCD_RectIntersection(&out, x, y, xsize, ysize)) {
|
||
LCD_FillColor(g_lcd.draw, out.xs, out.ys, out.xe - out.xs + 1,
|
||
out.ye - out.ys + 1, g_lcd.bkColor);
|
||
}
|
||
}
|
||
|
||
// 获取指定矩形空间的屏幕颜色，屏幕的绝对坐标
|
||
void LCD_GetColors(u16 *buff, int x_s, int y_s, int x_size, int y_size) {
|
||
u16 *addr = g_lcd.draw;
|
||
if (x_s < 0)
|
||
x_s = 0;
|
||
else if (x_s > LCD_Width - 1)
|
||
x_s = LCD_Width - 1;
|
||
if (y_s < 0)
|
||
y_s = 0;
|
||
else if (y_s > LCD_Height - 1)
|
||
y_s = LCD_Height - 1;
|
||
if (x_size > LCD_Width - x_s)
|
||
x_size = LCD_Width - x_s;
|
||
else if (x_size < 0)
|
||
x_size = 0;
|
||
if (y_size > LCD_Height - y_s)
|
||
y_size = LCD_Height - y_s;
|
||
else if (y_size < 0)
|
||
y_size = 0;
|
||
for (int y = y_s; y < y_size + y_s; y++) {
|
||
for (int x = x_s; x < x_size + x_s; x++) {
|
||
u32 temp = addr[(y * LCD_Width + x)];
|
||
//*buff=COLOR888TO565(temp);
|
||
*buff = temp;
|
||
buff++;
|
||
}
|
||
}
|
||
}
|