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@71:531419862202, 2019-12-25 (annotated)

Committer:
Pokitto
Date:
Wed Dec 25 23:59:52 2019 +0000
Revision:
71:531419862202
Parent:
66:6281a40d73e6 
Changed Mode2 C++ refresh code (graphical errors)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 52:c04087025cab 1 /**************************************************************************/
Pokitto 52:c04087025cab 2 /*!
Pokitto 52:c04087025cab 3 @file PokittoPalette.cpp
Pokitto 52:c04087025cab 4 @author Jonne Valola
Pokitto 52:c04087025cab 5
Pokitto 52:c04087025cab 6 @section LICENSE
Pokitto 52:c04087025cab 7
Pokitto 52:c04087025cab 8 Software License Agreement (BSD License)
Pokitto 52:c04087025cab 9
Pokitto 52:c04087025cab 10 Copyright (c) 2016, Jonne Valola
Pokitto 52:c04087025cab 11 All rights reserved.
Pokitto 52:c04087025cab 12
Pokitto 52:c04087025cab 13 Redistribution and use in source and binary forms, with or without
Pokitto 52:c04087025cab 14 modification, are permitted provided that the following conditions are met:
Pokitto 52:c04087025cab 15 1. Redistributions of source code must retain the above copyright
Pokitto 52:c04087025cab 16 notice, this list of conditions and the following disclaimer.
Pokitto 52:c04087025cab 17 2. Redistributions in binary form must reproduce the above copyright
Pokitto 52:c04087025cab 18 notice, this list of conditions and the following disclaimer in the
Pokitto 52:c04087025cab 19 documentation and/or other materials provided with the distribution.
Pokitto 52:c04087025cab 20 3. Neither the name of the copyright holders nor the
Pokitto 52:c04087025cab 21 names of its contributors may be used to endorse or promote products
Pokitto 52:c04087025cab 22 derived from this software without specific prior written permission.
Pokitto 52:c04087025cab 23
Pokitto 52:c04087025cab 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
Pokitto 52:c04087025cab 25 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Pokitto 52:c04087025cab 26 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Pokitto 52:c04087025cab 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
Pokitto 52:c04087025cab 28 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Pokitto 52:c04087025cab 29 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Pokitto 52:c04087025cab 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
Pokitto 52:c04087025cab 31 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Pokitto 52:c04087025cab 32 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Pokitto 52:c04087025cab 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Pokitto 52:c04087025cab 34 */
Pokitto 52:c04087025cab 35 /**************************************************************************/
Pokitto 52:c04087025cab 36
Pokitto 52:c04087025cab 37 #include "PokittoDisplay.h"
Pokitto 52:c04087025cab 38 #include "Pokitto_settings.h"
Pokitto 52:c04087025cab 39 #include "GBcompatibility.h"
Pokitto 52:c04087025cab 40 #include <stdio.h>
Pokitto 52:c04087025cab 41 #include <string.h>
Pokitto 52:c04087025cab 42
Pokitto 52:c04087025cab 43 #ifndef POK_SIM
Pokitto 52:c04087025cab 44 #include "HWLCD.h"
Pokitto 52:c04087025cab 45 #else
Pokitto 52:c04087025cab 46 #include "SimLCD.h"
Pokitto 52:c04087025cab 47 #endif
Pokitto 52:c04087025cab 48
Pokitto 66:6281a40d73e6 49 #if PROJ_SCREENMODE != 13 && PROJ_SCREENMODE != 64 && !defined(PROJ_MODE13) && !defined(PROJ_MODE64)
Pokitto 52:c04087025cab 50 #define PALSIZE 16
Pokitto 52:c04087025cab 51 #else
Pokitto 52:c04087025cab 52 #define PALSIZE 256
Pokitto 52:c04087025cab 53 #endif
Pokitto 52:c04087025cab 54
Pokitto 52:c04087025cab 55 using namespace Pokitto;
Pokitto 52:c04087025cab 56
Pokitto 52:c04087025cab 57
Pokitto 52:c04087025cab 58 void Display::loadRGBPalette(const unsigned char* p) {
Pokitto 52:c04087025cab 59 for (int i=0;i<PALSIZE;i++) palette[i] = RGBto565(p[i*3], p[i*3+1],p[i*3+2]);
Pokitto 52:c04087025cab 60 paletteptr = palette;
Pokitto 52:c04087025cab 61 }
Pokitto 52:c04087025cab 62
Pokitto 52:c04087025cab 63 void Display::load565Palette(const uint16_t* p) {
Pokitto 52:c04087025cab 64 for (int i=0;i<PALSIZE;i++) palette[i] = p[i];
Pokitto 52:c04087025cab 65 paletteptr = palette;
Pokitto 52:c04087025cab 66 }
Pokitto 52:c04087025cab 67
Pokitto 52:c04087025cab 68 void Display::rotatePalette(int8_t step) {
Pokitto 52:c04087025cab 69 uint16_t tpal[PALSIZE];
Pokitto 52:c04087025cab 70 if (step == 0) return;
Pokitto 52:c04087025cab 71 step = 0-step;
Pokitto 52:c04087025cab 72 if (step>0) {
Pokitto 52:c04087025cab 73 for (int i=step;i<PALSIZE;i++) tpal[i]=palette[i-step]; // palette revolves up, new color 1 becomes old color 0
Pokitto 52:c04087025cab 74 for (int i=0; i < step; i++) tpal[i]=palette[PALSIZE-step+i]; // overflow topmost values to bottom of new palette
Pokitto 52:c04087025cab 75 } else {
Pokitto 52:c04087025cab 76 for (int i=0;i<PALSIZE+step;i++)
Pokitto 52:c04087025cab 77 {
Pokitto 52:c04087025cab 78 tpal[i]=palette[i-step];
Pokitto 52:c04087025cab 79 }// palette revolves down, new color 0 becomes old color 1
Pokitto 52:c04087025cab 80 for (int i=0;i<-step; i++) {
Pokitto 52:c04087025cab 81 tpal[PALSIZE+step+i]=palette[i];
Pokitto 52:c04087025cab 82 }
Pokitto 52:c04087025cab 83 // overflow bottom values to top of new palette
Pokitto 52:c04087025cab 84 }
Pokitto 52:c04087025cab 85 for (int i=0; i<PALSIZE;i++) palette[i] = tpal[i];
Pokitto 52:c04087025cab 86 }
Pokitto 52:c04087025cab 87
Pokitto 52:c04087025cab 88 uint16_t Display::RGBto565(uint8_t R,uint8_t G,uint8_t B) {
Pokitto 52:c04087025cab 89 uint16_t color;
Pokitto 52:c04087025cab 90 color = B>>3;
Pokitto 52:c04087025cab 91 color |= ((G >> 2) << 5);
Pokitto 52:c04087025cab 92 color |= ((R >> 3) << 11);
Pokitto 52:c04087025cab 93 return color;
Pokitto 52:c04087025cab 94 }
Pokitto 52:c04087025cab 95
Pokitto 52:c04087025cab 96 uint16_t Display::interpolateColor(uint16_t c1, uint16_t c2, uint8_t factor) {
Pokitto 52:c04087025cab 97 int16_t R,G,B;
Pokitto 52:c04087025cab 98 int16_t dR,dG,dB;
Pokitto 52:c04087025cab 99 uint16_t color;
Pokitto 52:c04087025cab 100
Pokitto 52:c04087025cab 101 B = (c1 & 0x1F);
Pokitto 52:c04087025cab 102 dB = (c2 & 0x1F)-B;
Pokitto 52:c04087025cab 103 dB = (dB*factor)>>8;
Pokitto 52:c04087025cab 104 B += dB;
Pokitto 52:c04087025cab 105 if (B<0) B = 0;
Pokitto 52:c04087025cab 106
Pokitto 52:c04087025cab 107 G = ((c1>>5) & 0x3F);
Pokitto 52:c04087025cab 108 dG = ((c2>>5) & 0x3F)-G;
Pokitto 52:c04087025cab 109 dG = (dG*factor)>>8;
Pokitto 52:c04087025cab 110 G += dG;
Pokitto 52:c04087025cab 111 if (G<0) G=0;
Pokitto 52:c04087025cab 112
Pokitto 52:c04087025cab 113 R = (c1>>11);
Pokitto 52:c04087025cab 114 dR = (c2>>11)-R;
Pokitto 52:c04087025cab 115 dR = (dR*factor)>>8;
Pokitto 52:c04087025cab 116 R += dR;
Pokitto 52:c04087025cab 117 if (R<0) R=0;
Pokitto 52:c04087025cab 118
Pokitto 52:c04087025cab 119 color = B;
Pokitto 52:c04087025cab 120 color |= (G << 5);
Pokitto 52:c04087025cab 121 color |= (R << 11);
Pokitto 52:c04087025cab 122 return color;
Pokitto 52:c04087025cab 123 }
Pokitto 52:c04087025cab 124
Pokitto 52:c04087025cab 125 void Display::tweenPalette(uint16_t* ram_pal, const uint16_t* pal_1, const uint16_t* pal_2, uint8_t factor) {
Pokitto 52:c04087025cab 126 for (uint8_t i = 0; i<16 ; i++) {
Pokitto 52:c04087025cab 127 ram_pal[i] = interpolateColor(pal_1[i],pal_2[i],factor);
Pokitto 52:c04087025cab 128 }
Pokitto 52:c04087025cab 129 }
Pokitto 52:c04087025cab 130
Pokitto 52:c04087025cab 131
Pokitto 52:c04087025cab 132
Pokitto 52:c04087025cab 133