Jonne Valola / PokittoLib Featured

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

Dependents:   YATTT sd_map_test cPong SnowDemo ... more

PokittoLib

Library for programming Pokitto hardware

How to Use

  1. Import this library to online compiler (see button "import" on the right hand side
  2. DO NOT import mbed-src anymore, a better version is now included inside PokittoLib
  3. Change My_settings.h according to your project
  4. Start coding!

POKITTO_CORE/PokittoPalette.cpp@28:958b71c4b92a, 2018-01-05 (annotated)

Committer:
Pokitto
Date:
Fri Jan 05 02:19:51 2018 +0000
Revision:
28:958b71c4b92a
Parent:
0:e8b8f36b4505 
Sound level stored in EEPROM, sound output improved

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 0:e8b8f36b4505 1 /**************************************************************************/
Pokitto 0:e8b8f36b4505 2 /*!
Pokitto 0:e8b8f36b4505 3 @file PokittoPalette.cpp
Pokitto 0:e8b8f36b4505 4 @author Jonne Valola
Pokitto 0:e8b8f36b4505 5
Pokitto 0:e8b8f36b4505 6 @section LICENSE
Pokitto 0:e8b8f36b4505 7
Pokitto 0:e8b8f36b4505 8 Software License Agreement (BSD License)
Pokitto 0:e8b8f36b4505 9
Pokitto 0:e8b8f36b4505 10 Copyright (c) 2016, Jonne Valola
Pokitto 0:e8b8f36b4505 11 All rights reserved.
Pokitto 0:e8b8f36b4505 12
Pokitto 0:e8b8f36b4505 13 Redistribution and use in source and binary forms, with or without
Pokitto 0:e8b8f36b4505 14 modification, are permitted provided that the following conditions are met:
Pokitto 0:e8b8f36b4505 15 1. Redistributions of source code must retain the above copyright
Pokitto 0:e8b8f36b4505 16 notice, this list of conditions and the following disclaimer.
Pokitto 0:e8b8f36b4505 17 2. Redistributions in binary form must reproduce the above copyright
Pokitto 0:e8b8f36b4505 18 notice, this list of conditions and the following disclaimer in the
Pokitto 0:e8b8f36b4505 19 documentation and/or other materials provided with the distribution.
Pokitto 0:e8b8f36b4505 20 3. Neither the name of the copyright holders nor the
Pokitto 0:e8b8f36b4505 21 names of its contributors may be used to endorse or promote products
Pokitto 0:e8b8f36b4505 22 derived from this software without specific prior written permission.
Pokitto 0:e8b8f36b4505 23
Pokitto 0:e8b8f36b4505 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
Pokitto 0:e8b8f36b4505 25 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Pokitto 0:e8b8f36b4505 26 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Pokitto 0:e8b8f36b4505 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
Pokitto 0:e8b8f36b4505 28 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Pokitto 0:e8b8f36b4505 29 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Pokitto 0:e8b8f36b4505 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
Pokitto 0:e8b8f36b4505 31 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Pokitto 0:e8b8f36b4505 32 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Pokitto 0:e8b8f36b4505 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Pokitto 0:e8b8f36b4505 34 */
Pokitto 0:e8b8f36b4505 35 /**************************************************************************/
Pokitto 0:e8b8f36b4505 36
Pokitto 0:e8b8f36b4505 37 #include "PokittoDisplay.h"
Pokitto 0:e8b8f36b4505 38 #include "Pokitto_settings.h"
Pokitto 0:e8b8f36b4505 39 #include "GBcompatibility.h"
Pokitto 0:e8b8f36b4505 40 #include <stdio.h>
Pokitto 0:e8b8f36b4505 41 #include <string.h>
Pokitto 0:e8b8f36b4505 42
Pokitto 0:e8b8f36b4505 43 #ifndef POK_SIM
Pokitto 0:e8b8f36b4505 44 #include "HWLCD.h"
Pokitto 0:e8b8f36b4505 45 #else
Pokitto 0:e8b8f36b4505 46 #include "SimLCD.h"
Pokitto 0:e8b8f36b4505 47 #endif
Pokitto 0:e8b8f36b4505 48
Pokitto 0:e8b8f36b4505 49 using namespace Pokitto;
Pokitto 0:e8b8f36b4505 50
Pokitto 0:e8b8f36b4505 51
Pokitto 0:e8b8f36b4505 52 void Display::loadRGBPalette(const unsigned char* p) {
Pokitto 0:e8b8f36b4505 53 for (int i=0;i<PALETTE_SIZE;i++) palette[i] = RGBto565(p[i*3], p[i*3+1],p[i*3+2]);
Pokitto 0:e8b8f36b4505 54 paletteptr = palette;
Pokitto 0:e8b8f36b4505 55 }
Pokitto 0:e8b8f36b4505 56
Pokitto 0:e8b8f36b4505 57 void Display::load565Palette(const uint16_t* p) {
Pokitto 0:e8b8f36b4505 58 for (int i=0;i<PALETTE_SIZE;i++) palette[i] = p[i];
Pokitto 0:e8b8f36b4505 59 paletteptr = palette;
Pokitto 0:e8b8f36b4505 60 }
Pokitto 0:e8b8f36b4505 61
Pokitto 0:e8b8f36b4505 62 void Display::rotatePalette(int8_t step) {
Pokitto 0:e8b8f36b4505 63 uint16_t tpal[PALETTE_SIZE];
Pokitto 0:e8b8f36b4505 64 if (step == 0) return;
Pokitto 0:e8b8f36b4505 65 step = 0-step;
Pokitto 0:e8b8f36b4505 66 if (step>0) {
Pokitto 0:e8b8f36b4505 67 for (int i=step;i<PALETTE_SIZE;i++) tpal[i]=palette[i-step]; // palette revolves up, new color 1 becomes old color 0
Pokitto 0:e8b8f36b4505 68 for (int i=0; i < step; i++) tpal[i]=palette[PALETTE_SIZE-step+i]; // overflow topmost values to bottom of new palette
Pokitto 0:e8b8f36b4505 69 } else {
Pokitto 0:e8b8f36b4505 70 for (int i=0;i<PALETTE_SIZE+step;i++)
Pokitto 0:e8b8f36b4505 71 {
Pokitto 0:e8b8f36b4505 72 tpal[i]=palette[i-step];
Pokitto 0:e8b8f36b4505 73 }// palette revolves down, new color 0 becomes old color 1
Pokitto 0:e8b8f36b4505 74 for (int i=0;i<-step; i++) {
Pokitto 0:e8b8f36b4505 75 tpal[PALETTE_SIZE+step+i]=palette[i];
Pokitto 0:e8b8f36b4505 76 }
Pokitto 0:e8b8f36b4505 77 // overflow bottom values to top of new palette
Pokitto 0:e8b8f36b4505 78 }
Pokitto 0:e8b8f36b4505 79 for (int i=0; i<PALETTE_SIZE;i++) palette[i] = tpal[i];
Pokitto 0:e8b8f36b4505 80 }
Pokitto 0:e8b8f36b4505 81
Pokitto 0:e8b8f36b4505 82 uint16_t Display::RGBto565(uint8_t R,uint8_t G,uint8_t B) {
Pokitto 0:e8b8f36b4505 83 uint16_t color;
Pokitto 0:e8b8f36b4505 84 color = B>>3;
Pokitto 0:e8b8f36b4505 85 color |= ((G >> 2) << 5);
Pokitto 0:e8b8f36b4505 86 color |= ((R >> 3) << 11);
Pokitto 0:e8b8f36b4505 87 return color;
Pokitto 0:e8b8f36b4505 88 }
Pokitto 0:e8b8f36b4505 89
Pokitto 0:e8b8f36b4505 90 uint16_t Display::interpolateColor(uint16_t c1, uint16_t c2, uint8_t factor) {
Pokitto 0:e8b8f36b4505 91 int16_t R,G,B;
Pokitto 0:e8b8f36b4505 92 int16_t dR,dG,dB;
Pokitto 0:e8b8f36b4505 93 uint16_t color;
Pokitto 0:e8b8f36b4505 94
Pokitto 0:e8b8f36b4505 95 B = (c1 & 0x1F);
Pokitto 0:e8b8f36b4505 96 dB = (c2 & 0x1F)-B;
Pokitto 0:e8b8f36b4505 97 dB = (dB*factor)>>8;
Pokitto 0:e8b8f36b4505 98 B += dB;
Pokitto 0:e8b8f36b4505 99 if (B<0) B = 0;
Pokitto 0:e8b8f36b4505 100
Pokitto 0:e8b8f36b4505 101 G = ((c1>>5) & 0x3F);
Pokitto 0:e8b8f36b4505 102 dG = ((c2>>5) & 0x3F)-G;
Pokitto 0:e8b8f36b4505 103 dG = (dG*factor)>>8;
Pokitto 0:e8b8f36b4505 104 G += dG;
Pokitto 0:e8b8f36b4505 105 if (G<0) G=0;
Pokitto 0:e8b8f36b4505 106
Pokitto 0:e8b8f36b4505 107 R = (c1>>11);
Pokitto 0:e8b8f36b4505 108 dR = (c2>>11)-R;
Pokitto 0:e8b8f36b4505 109 dR = (dR*factor)>>8;
Pokitto 0:e8b8f36b4505 110 R += dR;
Pokitto 0:e8b8f36b4505 111 if (R<0) R=0;
Pokitto 0:e8b8f36b4505 112
Pokitto 0:e8b8f36b4505 113 color = B;
Pokitto 0:e8b8f36b4505 114 color |= (G << 5);
Pokitto 0:e8b8f36b4505 115 color |= (R << 11);
Pokitto 0:e8b8f36b4505 116 return color;
Pokitto 0:e8b8f36b4505 117 }
Pokitto 0:e8b8f36b4505 118
Pokitto 0:e8b8f36b4505 119 void Display::tweenPalette(uint16_t* ram_pal, const uint16_t* pal_1, const uint16_t* pal_2, uint8_t factor) {
Pokitto 0:e8b8f36b4505 120 for (uint8_t i = 0; i<16 ; i++) {
Pokitto 0:e8b8f36b4505 121 ram_pal[i] = interpolateColor(pal_1[i],pal_2[i],factor);
Pokitto 0:e8b8f36b4505 122 }
Pokitto 0:e8b8f36b4505 123 }
Pokitto 0:e8b8f36b4505 124
Pokitto 0:e8b8f36b4505 125
Pokitto 0:e8b8f36b4505 126