Quastions about Altera Ap372

Hi everybody http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

I want to do my new board based on reference design auto_graphics_ref_design-v1.0.4

And i found to many C files in design and it&#39;s dificault to understand all software design http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif

I just want to do my custom animation with two video pages where i move triangle and i don&#39;t understand how to do it correct without blinking.

Maybe someone have an experience with this ref design - help me please to make first steps.

Here is my program - it work but i not understant a too many strings.

void my_main()

{

point quad[4];

alt_u32 i, j, x1, y1, x2, y2;

alt_32 rects[8] = {80, 160, 240, 320, 400, 480, 560, 640};

alt_32 num_objects = 500;

printf("My triangle\n\n");

if ((bmpFile = fopen("/mnt/rozipfs/backdrop.bmp","rb")) == NULL) {

printf("Unable to open backdrop.bmp\n");

return ;

}

bmpTo565(bmpFile, frameBuffer3); // why i don&#39;t see any pictute ?

// clear frame buffers

vga_paint_screen_8bit(P_TRANS, frameBuffer11);

//////////////////////////////

lcd_sync();

// Set up DMA for layer 2 from frame buffer 11

lcdDoDMA8(2, frameBuffer11, SCREENSIZE, 0x2f);

lcd.const_alpha2 = 0x3f;

// Set up DMA for layer 3 from frame buffer 12

lcdDoDMA8(4, frameBuffer12, SCREENSIZE, 0x3f);

lcd_sync();

// Enable DMA and turn on layers

lcdLayers(0x04);

// I copy this strings from sources and i don&#39;t understand what they mean - can some one to write comments ?

//////////////////////////////

quad[0].x = 10;

quad[0].y = 10;

quad[1].x = 100;

quad[1].y = 10;

quad[2].x = 150;

quad[2].y = 100;

quad[3].x = 0;

quad[3].y = 0;

for (i=0;i<512;i++)

{

quad[0].x = i;

quad[0].y = i;

quad[1].x = 100;

quad[1].y = 10;

quad[2].x = 150;

quad[2].y = 100;

lcd_sync();

vga_draw_polygon_8bit(quad, 3, 1, P_GREEN, DO_FILL, frameBuffer11);

//here i draw triangle but how to draw it with 2 videopages mechansim ?

}