Subversion Repositories openmsp430

#include "demo.h"

#include "timerA.h"

#include "gfx_controller.h"

//---------------------------------------------------//

// 8BPP DEMO

//---------------------------------------------------//

void demo_4bpp(void) {

  unsigned int  lfsr;

  unsigned int  lfsr_lsb;

  unsigned int  line, column;

  unsigned int  color        = 0;

  unsigned int  use_gpu      = 1;

  unsigned int  wait_sel     = 0;

  unsigned int  x_coord      = 0;

  unsigned int  y_coord      = 0;

  unsigned int  loop;

  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,          0x0000, DST_SWAP_NONE); // Background

  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+3*char_width, offset_y+0*char_width), 1*char_width, 7*char_width, 0x000B, DST_SWAP_NONE); // 4

  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+0*char_width, offset_y+4*char_width), 5*char_width, 1*char_width, 0x000B, DST_SWAP_NONE);

  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+2*char_width, offset_y+1*char_width), 1*char_width, 1*char_width, 0x000B, DST_SWAP_NONE);

  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+1*char_width, offset_y+2*char_width), 1*char_width, 1*char_width, 0x000B, DST_SWAP_NONE);

  gpu_fill (PIX_ADDR(offset_x+1*6*char_width+0*char_width, offset_y+3*char_width), 1*char_width, 1*char_width, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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, 0x000B, 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;

  for( line = 0; line <4; line = line + 1 ) {

    for( column = 0; column < 4; column = column + 1 ) {

      draw_block(PIX_ADDR(x_coord, y_coord), 77, 57, color, DST_SWAP_NONE, 0);

      if (color==15) { color= 0;}

      else           { color++; }

      x_coord += 80;

    }

    y_coord += 60;

    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;

      }

    }

  }

};