+++ /dev/null
-#include "Screen.h"\r
-\r
-#ifdef _MSC_VER\r
-#include <assert.h>\r
-#else\r
-extern "C"\r
-{\r
- #include "systick.h"\r
-}\r
-#endif\r
-\r
-Screen::Screen()\r
-{\r
- memset(mLcd, 0x00, NXT_LCD_DEPTH*NXT_LCD_WIDTH);\r
- for(int i = 0; i < NUM_SPRITES; ++i)\r
- {\r
- mSpriteList[i] = NULL;\r
- }\r
-}\r
-\r
-void Screen::update()\r
-{\r
- memset(mLcd, 0x00, NXT_LCD_DEPTH*NXT_LCD_WIDTH);\r
- for(int i = 0; i < NUM_SPRITES; ++i)\r
- {\r
- if(mSpriteList[i])\r
- {\r
- if(mSpriteList[i]->frameIsRenderable())\r
- {\r
- renderBitmap( mLcd, \r
- mSpriteList[i]->getCurrentFramePtr(), \r
- mSpriteList[i]->getWidth(), \r
- mSpriteList[i]->getHeight(), \r
- mSpriteList[i]->getPosition().mX, \r
- mSpriteList[i]->getPosition().mY, \r
- mSpriteList[i]->getInvert(), \r
- mSpriteList[i]->getHFlip(), \r
- mSpriteList[i]->getVFlip());\r
- }\r
- \r
- mSpriteList[i]->update();\r
- }\r
- }\r
-#ifndef _MSC_VER\r
- // Display update of NXT LCD takes 16msec according LEGO HW development kit. \r
- // Thus faster refresh rate(update) than 16msec does not work. \r
- // Actually it makes the system busy by frequest ISR requests and \r
- // it may cause a system crash. Then it needs to insert 20msec (> 16msec) wait.\r
- systick_wait_ms(20);\r
-#endif\r
- display_bitmap_copy(mLcd, NXT_LCD_WIDTH, NXT_LCD_DEPTH, 0, 0);\r
- display_update();\r
-}\r
-\r
-Sprite* Screen::newSprite(Sprite *sprite)\r
-{\r
- for(int i = 0; i < NUM_SPRITES; ++i)\r
- {\r
- if(mSpriteList[i] == NULL)\r
- {\r
- mSpriteList[i] = sprite;\r
- return sprite;\r
- }\r
- }\r
-\r
- return sprite;\r
-}\r
-\r
-void Screen::deleteSprite(Sprite *sprite)\r
-{\r
- for(int i = 0; i < NUM_SPRITES; ++i)\r
- {\r
- if(mSpriteList[i] == sprite)\r
- {\r
- mSpriteList[i] = NULL;\r
- return;\r
- }\r
- }\r
-}\r
-#ifdef _MSC_VER\r
-void Screen::renderBitmap(U8 *lcd, const CHAR *sprite, S32 width, S32 height, S32 xPos, S32 yPos, bool invert, bool hflip, bool vflip)\r
-{\r
- int spriteByteWidth = width/8;\r
- int currentSpriteByte = 0;\r
- int spriteRow = 0;\r
-\r
- for (int y = 0; y < height; ++y)\r
- {\r
- if(vflip == true)\r
- {\r
- spriteRow = height - 1 - y;\r
- }\r
- else\r
- {\r
- spriteRow = y;\r
- }\r
-\r
- if (spriteRow + yPos < 0 || spriteRow + yPos > 63)\r
- {\r
- currentSpriteByte += spriteByteWidth;\r
- continue;\r
- }\r
-\r
- int spriteCol = 0;\r
- for (int x = 0; x < spriteByteWidth; x++)\r
- {\r
- if (hflip == true)\r
- {\r
- spriteCol = spriteByteWidth - 1 - x;\r
- }\r
- else\r
- {\r
- spriteCol = x;\r
- }\r
-\r
- unsigned char workByte = sprite[currentSpriteByte++];\r
-\r
- if(invert)\r
- {\r
- workByte ^= 0xff;\r
- }\r
-\r
- int spritePixelOffset = (spriteCol * 8) + xPos;\r
- \r
- int lcdPixelOffset = ((spriteRow + yPos) * 100) + spritePixelOffset;\r
- int pixelShift = 0;\r
- for (int px = 0; px < 8; ++px)\r
- {\r
- if (hflip == true)\r
- {\r
- pixelShift = px;\r
- }\r
- else\r
- {\r
- pixelShift = 7 - px;\r
- }\r
-\r
- if (spritePixelOffset + px < 0 || spritePixelOffset + px > 99)\r
- {\r
- continue;\r
- }\r
-\r
- if (workByte > 0)\r
- {\r
- int lcdBytePos = (lcdPixelOffset + px) / 8;\r
- int lcdBitPos = (lcdPixelOffset + px) % 8;\r
-\r
- if ((workByte & (1 << pixelShift)) == (1 << pixelShift))\r
- {\r
- lcd[lcdBytePos] |= (char)(1 << lcdBitPos);\r
- }\r
- }\r
- }\r
- }\r
- }\r
-}\r
-#else\r
-void Screen::renderBitmap(U8 *lcd, const CHAR *file, S32 width, S32 height, S32 xPos, S32 yPos, bool invert, bool hflip, bool vflip)\r
-{ \r
- SINT bmp_line = width / 8;\r
- if (width % 8)\r
- {\r
- bmp_line++;\r
- }\r
-\r
- //iterate through each row of the bitmap\r
- for (SINT bmp_row = 0; bmp_row < height; bmp_row++)\r
- {\r
- //if the position of any row puts it off screen, the don' render it\r
- if(bmp_row + yPos < 0 || bmp_row + yPos > 63)\r
- {\r
- continue;\r
- }\r
-\r
- //setup the pixel position on the lcd to render\r
- SINT lcd_row = (bmp_row + yPos) / 8;\r
- SINT lcd_bit_pos = 7 - ((bmp_row + yPos) % 8);\r
-\r
- //iterate through each column\r
- for(SINT bmp_col = 0; bmp_col < bmp_line ; bmp_col++)\r
- {\r
- //vflip if nevessary\r
- U8 row = bmp_row;\r
-\r
- if(vflip)\r
- {\r
- row = (height - bmp_row);\r
- }\r
-\r
- //hflp if necessary\r
- SINT renderColumn = bmp_col;\r
-\r
- if(hflip)\r
- {\r
- renderColumn = bmp_line - bmp_col;\r
- }\r
-\r
- //get the byte to render\r
- U8 bmp_data = file[(row * bmp_line) + bmp_col];\r
-\r
- //invert the bits if necessary\r
- if(invert)\r
- {\r
- bmp_data ^= 0xff;\r
- }\r
-\r
- //get the position on the lcd to render\r
- SINT lcd_pos = (lcd_row * NXT_LCD_WIDTH) + ((renderColumn * 8) + xPos);\r
-\r
- //now iterate through each bit in the render byte\r
- for (SINT bmp_bit_pos = 0; bmp_bit_pos < 8; bmp_bit_pos++)\r
- {\r
-\r
- //hflip the renderbytes bits if necessary\r
- U8 bitToDraw = (7 - bmp_bit_pos);\r
-\r
- if(hflip)\r
- {\r
- bitToDraw = bmp_bit_pos;\r
- }\r
-\r
- //if ever a bit is off screen, don't render it\r
- if((renderColumn * 8) + xPos + bitToDraw < 0 || \r
- (renderColumn * 8) + xPos + bitToDraw > 99)\r
- {\r
- continue;\r
- }\r
-\r
- //finally, render the pixel\r
- if (bmp_data & (0x01 << bitToDraw))\r
- {\r
- SINT lcd_index = lcd_pos + bmp_bit_pos;\r
- // checks the size of render data to be stored into LCD\r
- if (lcd_index < NXT_LCD_DEPTH*NXT_LCD_WIDTH)\r
- {\r
- lcd[lcd_index] |= (0x80 >> lcd_bit_pos);\r
- }\r
- }\r
- /*else\r
- {\r
- //if the bitmap pixel is clear and we're not rendering transparently,\r
- //clear this pixel location on the lcd\r
- if(!transparent)\r
- {\r
- lcd[lcd_pos + bmp_bit_pos] &= (~0x80 >> lcd_bit_pos);\r
- }\r
- }*/\r
- }\r
- }\r
- }\r
-}\r
-#endif\r
-\r
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