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[/] [openmsp430/] [trunk/] [fpga/] [altera_de0_nano_soc/] [software/] [apps/] [gfx_demo/] [demo_2bpp.c] - Rev 221

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#include "demo.h"
#include "timerA.h"
#include "gfx_controller.h"
 
//---------------------------------------------------//
// 8BPP DEMO
//---------------------------------------------------//
void demo_2bpp(void) {
 
  unsigned int  line, column;
  unsigned int  color        = 0;
  unsigned int  x_coord      = 0;
  unsigned int  y_coord      = 0;
 
  const uint16_t offset_x    = 35;
  const uint16_t offset_y    = 95;
  const uint16_t char_width  =  7;
 
  // Screen introduction
  gpu_fill (PIX_ADDR(0,                                    0                    ), 320,          480,          0x0001, DST_SWAP_NONE); // Background
 
  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+1*char_width, offset_y+0*char_width), 3*char_width, 1*char_width, 0x0002, DST_SWAP_NONE); // 2
  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+0*char_width, offset_y+1*char_width), 1*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+4*char_width, offset_y+1*char_width), 1*char_width, 2*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+3*char_width, offset_y+3*char_width), 1*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+2*char_width, offset_y+4*char_width), 1*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+1*char_width, offset_y+5*char_width), 1*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+0*char_width, offset_y+6*char_width), 5*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
 
  gpu_fill (PIX_ADDR(offset_x+3*6*char_width+0*char_width, offset_y+0*char_width), 1*char_width, 6*char_width, 0x0002, DST_SWAP_NONE); // b
  gpu_fill (PIX_ADDR(offset_x+3*6*char_width+1*char_width, offset_y+6*char_width), 3*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+3*6*char_width+1*char_width, offset_y+4*char_width), 1*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+3*6*char_width+2*char_width, offset_y+3*char_width), 2*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+3*6*char_width+4*char_width, offset_y+4*char_width), 1*char_width, 2*char_width, 0x0002, DST_SWAP_NONE);
 
  gpu_fill (PIX_ADDR(offset_x+4*6*char_width+0*char_width, offset_y+2*char_width), 1*char_width, 5*char_width, 0x0002, DST_SWAP_NONE); // p
  gpu_fill (PIX_ADDR(offset_x+4*6*char_width+1*char_width, offset_y+2*char_width), 3*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+4*6*char_width+1*char_width, offset_y+4*char_width), 3*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+4*6*char_width+4*char_width, offset_y+3*char_width), 1*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
 
  gpu_fill (PIX_ADDR(offset_x+5*6*char_width+0*char_width, offset_y+2*char_width), 1*char_width, 5*char_width, 0x0002, DST_SWAP_NONE); // p
  gpu_fill (PIX_ADDR(offset_x+5*6*char_width+1*char_width, offset_y+2*char_width), 3*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+5*6*char_width+1*char_width, offset_y+4*char_width), 3*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
  gpu_fill (PIX_ADDR(offset_x+5*6*char_width+4*char_width, offset_y+3*char_width), 1*char_width, 1*char_width, 0x0002, DST_SWAP_NONE);
 
  ta_wait_no_lpm(WT_500MS);
  ta_wait_no_lpm(WT_500MS);
  ta_wait_no_lpm(WT_500MS);
  ta_wait_no_lpm(WT_500MS);
 
  // Clear background
  gpu_fill (PIX_ADDR(0,                                    0                    ), 320,          240,          0x0000, DST_SWAP_NONE);
 
  // Wait for on-going GPU operation to be done before moving on
  gpu_wait_done();
 
  // Fill the screen with all possible colors
  color     = 0x0000;
  x_coord   = 0;
  y_coord   = 0;
  for( line = 0; line <2; line = line + 1 ) {
    for( column = 0; column < 2; column = column + 1 ) {
 
      draw_block(PIX_ADDR(x_coord, y_coord), 158, 118, color, DST_SWAP_NONE, 0);
      if (color==3) { color= 0;}
      else          { color++; }
      x_coord += 162;
    }
    y_coord += 122;
    x_coord  =  0;
  }
  ta_wait_no_lpm(WT_500MS);
  ta_wait_no_lpm(WT_500MS);
 
//  // Initialize LFSR for random color generation
//  lfsr = 0xACEB;
//
//  // Loop the demo
//  loop = 0;
//  while (loop <4) {
//
//    // Select rotation & GPU use
//    switch(loop & 0x0003) {
//    case 0 : DISPLAY_CFG = DST_SWAP_CL;	 wait_sel = 3;
// 	     break;
//    case 1 : DISPLAY_CFG = DST_SWAP_CL;	 wait_sel = 2;
// 	     break;
//    case 2 : DISPLAY_CFG = DST_SWAP_CL;	 wait_sel = 1;
// 	     break;
//    default: DISPLAY_CFG = DST_SWAP_CL;	 wait_sel = 0;
// 	     break;
//    }
//    loop++;
//    move_to_next_mode = 0;
//
//    // Move the starting point of the buffer refresh
//    DISPLAY_REFR_CNT =	0;
//    while (!move_to_next_mode) {
//
//      // Fill the screen with random colors
//      x_coord	   = 0;
//      y_coord	   = 0;
//      for( line = 0; line <4; line = line + 1 ) {
// 	for( column = 0; column < 4; column = column + 1 ) {
//
// 	  // Compute next color from LFSR
// 	  lfsr_lsb = lfsr & 1;			   /* Get LSB (i.e., the output bit). */
// 	  lfsr     >>= 1;			   /* Shift register */
// 	  lfsr     ^= (-lfsr_lsb) & 0xB400u;	   /* If the output bit is 1, apply toggle mask.
// 						    * The value has 1 at bits corresponding
// 					            * to taps, 0 elsewhere. */
//          color    = lfsr & 0x000F;
//
// 	  // Draw the box
// 	  draw_block(PIX_ADDR(x_coord, y_coord), 77, 57, color, DST_SWAP_NONE, use_gpu);
// 	  x_coord += 80;
// 	}
// 	y_coord += 60;
// 	x_coord  =  0;
//      }
//
//      // Wait according to config
//      switch(wait_sel) {
//      case 0 : while(DISPLAY_REFR_CNT!=0); DISPLAY_REFR_CNT = 2;
// 	       break;
//      case 1 : while(DISPLAY_REFR_CNT!=0); DISPLAY_REFR_CNT = 4;
// 	       break;
//      case 2 : while(DISPLAY_REFR_CNT!=0); DISPLAY_REFR_CNT = 7;
// 	       break;
//      default: while(DISPLAY_REFR_CNT!=0); DISPLAY_REFR_CNT = 10;
// 	       break;
//      }
//    }
//  }
};
 

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