#49609 - paladine - Sun Jul 31, 2005 10:00 pm
I am using mode 0 and 3 backgrounds for display. BG0 is my main map display, BG1 is used for text and BG2 is used as a window to show the text. I am coding the graphics for the window manually since it's just a few pixels to display. I am experience some weird color/palette problems when display some of my tiles. Here is an example of a tile -
I have a topside and leftside variable. The top is topside, the bottom is topside with a vertical flip, the left side is leftside, and the right side is leftside with a horizontal flip. The top and bottom displays work perfectly. However the colors/palettes don't match up for the left hand side. My palette is as follows , 1->blue, 2->white, 3->gray,4->darker gray. So the left side should appear as white->gray->darker gray->blue. But what I see on screen is blue->darker gray->gray->white->blue->blue->blue->blue... which doesn't really make any sense to me.
The strange thing is I can redefine the array as 0x2222 and it appears totally white. I can even set it to 0x2222,0x0000 ... and it appears white on the left half and blue on the right. However when I use 0x2341,0x1111 it never works correctly! Very strange! A long shot perhaps, any suggestions? I can post more code if it'll help.
| Code: |
|
static const u16 leftside[16] = { 0x2341,0x1111, 0x2341,0x1111, 0x2341,0x1111, 0x2341,0x1111, 0x2341,0x1111, 0x2341,0x1111, 0x2341,0x1111, 0x2341,0x1111, }; |
I have a topside and leftside variable. The top is topside, the bottom is topside with a vertical flip, the left side is leftside, and the right side is leftside with a horizontal flip. The top and bottom displays work perfectly. However the colors/palettes don't match up for the left hand side. My palette is as follows , 1->blue, 2->white, 3->gray,4->darker gray. So the left side should appear as white->gray->darker gray->blue. But what I see on screen is blue->darker gray->gray->white->blue->blue->blue->blue... which doesn't really make any sense to me.
The strange thing is I can redefine the array as 0x2222 and it appears totally white. I can even set it to 0x2222,0x0000 ... and it appears white on the left half and blue on the right. However when I use 0x2341,0x1111 it never works correctly! Very strange! A long shot perhaps, any suggestions? I can post more code if it'll help.
| Code: |
|
void EnterTalkMode(const char *pText) { volatile u16 empty; int i; u16 *screenBase = SCREEN_BASE_BLOCK(15); u16 *charBase = CHAR_BASE_BLOCK(1); u16 *palette = BG_PALETTE_INDEX(14); // ----------------------------------------------------------------------------- // set palette palette[0] = 0; palette[1] = RGB(0,0,31); // blue palette[2] = RGB(30,31,30); // off-white palette[3] = RGB(24,24,24); // slightly gray palette[4] = RGB(12,14,14); // slightly darker // ----------------------------------------------------------------------------- // create first tile of transparency empty = 0; DMACopy((u16*)&empty,charBase,16,DMA_16NOW | DMA_SOURCE_FIXED); // create second tile of blue empty = 0x1111; DMACopy((u16*)&empty,charBase+16,16,DMA_16NOW | DMA_SOURCE_FIXED); // create third tile of upper row DMACopy(toprow,charBase+32,16,DMA_16NOW); // create fourth tile of left sides DMACopy(leftside,charBase+48,16,DMA_16NOW); // create fifth tile of corners DMACopy(upperleftcorner,charBase+64,16,DMA_16NOW); // ----------------------------------------------------------------------------- // now fill with blue, clear middle section empty = (14 << TILE_PALETTE_SHIFT) | 1; DMACopy((u16*)&empty,screenBase+32,32*8,DMA_16NOW | DMA_SOURCE_FIXED); // clear all tiles (set to the first tile which will be transparent) empty = (14 << TILE_PALETTE_SHIFT); DMACopy((u16*)&empty,screenBase+(32*10),32*22,DMA_16NOW | DMA_SOURCE_FIXED); // fill top row is tile 2 (third tile) empty = (14 << TILE_PALETTE_SHIFT) | 2; DMACopy((u16*)&empty,screenBase,32,DMA_16NOW | DMA_SOURCE_FIXED); // bottom row is tile 2, vertical flip empty = (14 << TILE_PALETTE_SHIFT) | TILE_VERTICAL_FLIP | 2; DMACopy((u16*)&empty,screenBase+32*9,32,DMA_16NOW | DMA_SOURCE_FIXED); // left side is tile 3 (fourth tile) for (i=0;i<32*10;i+=32) { screenBase[i] = (14 << TILE_PALETTE_SHIFT) | 3; screenBase[i+29] = (14 << TILE_PALETTE_SHIFT) | (TILE_HORIZONTAL_FLIP) | 3; } // do the corners screenBase[0] = (14 << TILE_PALETTE_SHIFT) | 4; // ok now create the NEXT background which is used for the text screenBase = SCREEN_BASE_BLOCK(23); charBase = CHAR_BASE_BLOCK(2); palette = BG_PALETTE_INDEX(15); // fill palette palette[0] = 0; palette[1] = RGB(31,31,31); // this is the text color // clear all tiles (set to the first tile which will be transparent) empty = (15 << TILE_PALETTE_SHIFT); DMACopy((u16*)&empty,screenBase,(256/8)*(256/8),DMA_16NOW | DMA_SOURCE_FIXED); // set some tiles DrawParagraph(screenBase,pText); // set one tile to something // create first tile of transparency empty = 0; DMACopy((u16*)&empty,charBase,16,DMA_16NOW | DMA_SOURCE_FIXED); // copy font tiles DMACopy(font.imageData,charBase+16,sizeof(font.imageData)/2,DMA_16NOW); REG_BG2CNT = 0 | (1 << TILE_DATA_SHIFT) | (15 << TILE_MAP_SHIFT) | TEXTBG_SIZE_256_256; REG_BG1CNT = 0 | (2 << TILE_DATA_SHIFT) | (23 << TILE_MAP_SHIFT) | TEXTBG_SIZE_256_256; REG_DISPCNT |= BG1_ENABLE | BG2_ENABLE; // scroll to 0,0 REG_BG1HOFS = 0; REG_BG1VOFS = 0; REG_BG2HOFS = 0; REG_BG2VOFS = 0; // set the mode now pLastMode = g_pMode; g_pMode = &talkingMode; } |