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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@31:f4b9b85c7b62, 2018-01-30 (annotated)

Committer:
Pokitto
Date:
Tue Jan 30 10:41:47 2018 +0000
Revision:
31:f4b9b85c7b62
Sound output improvements added:  louder, clearer, faster!

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 31:f4b9b85c7b62 1 /**************************************************************************/
Pokitto 31:f4b9b85c7b62 2 /*!
Pokitto 31:f4b9b85c7b62 3 @file PokittoPalette.cpp
Pokitto 31:f4b9b85c7b62 4 @author Jonne Valola
Pokitto 31:f4b9b85c7b62 5
Pokitto 31:f4b9b85c7b62 6 @section LICENSE
Pokitto 31:f4b9b85c7b62 7
Pokitto 31:f4b9b85c7b62 8 Software License Agreement (BSD License)
Pokitto 31:f4b9b85c7b62 9
Pokitto 31:f4b9b85c7b62 10 Copyright (c) 2016, Jonne Valola
Pokitto 31:f4b9b85c7b62 11 All rights reserved.
Pokitto 31:f4b9b85c7b62 12
Pokitto 31:f4b9b85c7b62 13 Redistribution and use in source and binary forms, with or without
Pokitto 31:f4b9b85c7b62 14 modification, are permitted provided that the following conditions are met:
Pokitto 31:f4b9b85c7b62 15 1. Redistributions of source code must retain the above copyright
Pokitto 31:f4b9b85c7b62 16 notice, this list of conditions and the following disclaimer.
Pokitto 31:f4b9b85c7b62 17 2. Redistributions in binary form must reproduce the above copyright
Pokitto 31:f4b9b85c7b62 18 notice, this list of conditions and the following disclaimer in the
Pokitto 31:f4b9b85c7b62 19 documentation and/or other materials provided with the distribution.
Pokitto 31:f4b9b85c7b62 20 3. Neither the name of the copyright holders nor the
Pokitto 31:f4b9b85c7b62 21 names of its contributors may be used to endorse or promote products
Pokitto 31:f4b9b85c7b62 22 derived from this software without specific prior written permission.
Pokitto 31:f4b9b85c7b62 23
Pokitto 31:f4b9b85c7b62 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
Pokitto 31:f4b9b85c7b62 25 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Pokitto 31:f4b9b85c7b62 26 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Pokitto 31:f4b9b85c7b62 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
Pokitto 31:f4b9b85c7b62 28 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Pokitto 31:f4b9b85c7b62 29 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Pokitto 31:f4b9b85c7b62 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
Pokitto 31:f4b9b85c7b62 31 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Pokitto 31:f4b9b85c7b62 32 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Pokitto 31:f4b9b85c7b62 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Pokitto 31:f4b9b85c7b62 34 */
Pokitto 31:f4b9b85c7b62 35 /**************************************************************************/
Pokitto 31:f4b9b85c7b62 36
Pokitto 31:f4b9b85c7b62 37 #include "PokittoDisplay.h"
Pokitto 31:f4b9b85c7b62 38 #include "Pokitto_settings.h"
Pokitto 31:f4b9b85c7b62 39 #include "GBcompatibility.h"
Pokitto 31:f4b9b85c7b62 40 #include <stdio.h>
Pokitto 31:f4b9b85c7b62 41 #include <string.h>
Pokitto 31:f4b9b85c7b62 42
Pokitto 31:f4b9b85c7b62 43 #ifndef POK_SIM
Pokitto 31:f4b9b85c7b62 44 #include "HWLCD.h"
Pokitto 31:f4b9b85c7b62 45 #else
Pokitto 31:f4b9b85c7b62 46 #include "SimLCD.h"
Pokitto 31:f4b9b85c7b62 47 #endif
Pokitto 31:f4b9b85c7b62 48
Pokitto 31:f4b9b85c7b62 49 using namespace Pokitto;
Pokitto 31:f4b9b85c7b62 50
Pokitto 31:f4b9b85c7b62 51
Pokitto 31:f4b9b85c7b62 52 void Display::loadRGBPalette(const unsigned char* p) {
Pokitto 31:f4b9b85c7b62 53 for (int i=0;i<PALETTE_SIZE;i++) palette[i] = RGBto565(p[i*3], p[i*3+1],p[i*3+2]);
Pokitto 31:f4b9b85c7b62 54 paletteptr = palette;
Pokitto 31:f4b9b85c7b62 55 }
Pokitto 31:f4b9b85c7b62 56
Pokitto 31:f4b9b85c7b62 57 void Display::load565Palette(const uint16_t* p) {
Pokitto 31:f4b9b85c7b62 58 for (int i=0;i<PALETTE_SIZE;i++) palette[i] = p[i];
Pokitto 31:f4b9b85c7b62 59 paletteptr = palette;
Pokitto 31:f4b9b85c7b62 60 }
Pokitto 31:f4b9b85c7b62 61
Pokitto 31:f4b9b85c7b62 62 void Display::rotatePalette(int8_t step) {
Pokitto 31:f4b9b85c7b62 63 uint16_t tpal[PALETTE_SIZE];
Pokitto 31:f4b9b85c7b62 64 if (step == 0) return;
Pokitto 31:f4b9b85c7b62 65 step = 0-step;
Pokitto 31:f4b9b85c7b62 66 if (step>0) {
Pokitto 31:f4b9b85c7b62 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 31:f4b9b85c7b62 68 for (int i=0; i < step; i++) tpal[i]=palette[PALETTE_SIZE-step+i]; // overflow topmost values to bottom of new palette
Pokitto 31:f4b9b85c7b62 69 } else {
Pokitto 31:f4b9b85c7b62 70 for (int i=0;i<PALETTE_SIZE+step;i++)
Pokitto 31:f4b9b85c7b62 71 {
Pokitto 31:f4b9b85c7b62 72 tpal[i]=palette[i-step];
Pokitto 31:f4b9b85c7b62 73 }// palette revolves down, new color 0 becomes old color 1
Pokitto 31:f4b9b85c7b62 74 for (int i=0;i<-step; i++) {
Pokitto 31:f4b9b85c7b62 75 tpal[PALETTE_SIZE+step+i]=palette[i];
Pokitto 31:f4b9b85c7b62 76 }
Pokitto 31:f4b9b85c7b62 77 // overflow bottom values to top of new palette
Pokitto 31:f4b9b85c7b62 78 }
Pokitto 31:f4b9b85c7b62 79 for (int i=0; i<PALETTE_SIZE;i++) palette[i] = tpal[i];
Pokitto 31:f4b9b85c7b62 80 }
Pokitto 31:f4b9b85c7b62 81
Pokitto 31:f4b9b85c7b62 82 uint16_t Display::RGBto565(uint8_t R,uint8_t G,uint8_t B) {
Pokitto 31:f4b9b85c7b62 83 uint16_t color;
Pokitto 31:f4b9b85c7b62 84 color = B>>3;
Pokitto 31:f4b9b85c7b62 85 color |= ((G >> 2) << 5);
Pokitto 31:f4b9b85c7b62 86 color |= ((R >> 3) << 11);
Pokitto 31:f4b9b85c7b62 87 return color;
Pokitto 31:f4b9b85c7b62 88 }
Pokitto 31:f4b9b85c7b62 89
Pokitto 31:f4b9b85c7b62 90 uint16_t Display::interpolateColor(uint16_t c1, uint16_t c2, uint8_t factor) {
Pokitto 31:f4b9b85c7b62 91 int16_t R,G,B;
Pokitto 31:f4b9b85c7b62 92 int16_t dR,dG,dB;
Pokitto 31:f4b9b85c7b62 93 uint16_t color;
Pokitto 31:f4b9b85c7b62 94
Pokitto 31:f4b9b85c7b62 95 B = (c1 & 0x1F);
Pokitto 31:f4b9b85c7b62 96 dB = (c2 & 0x1F)-B;
Pokitto 31:f4b9b85c7b62 97 dB = (dB*factor)>>8;
Pokitto 31:f4b9b85c7b62 98 B += dB;
Pokitto 31:f4b9b85c7b62 99 if (B<0) B = 0;
Pokitto 31:f4b9b85c7b62 100
Pokitto 31:f4b9b85c7b62 101 G = ((c1>>5) & 0x3F);
Pokitto 31:f4b9b85c7b62 102 dG = ((c2>>5) & 0x3F)-G;
Pokitto 31:f4b9b85c7b62 103 dG = (dG*factor)>>8;
Pokitto 31:f4b9b85c7b62 104 G += dG;
Pokitto 31:f4b9b85c7b62 105 if (G<0) G=0;
Pokitto 31:f4b9b85c7b62 106
Pokitto 31:f4b9b85c7b62 107 R = (c1>>11);
Pokitto 31:f4b9b85c7b62 108 dR = (c2>>11)-R;
Pokitto 31:f4b9b85c7b62 109 dR = (dR*factor)>>8;
Pokitto 31:f4b9b85c7b62 110 R += dR;
Pokitto 31:f4b9b85c7b62 111 if (R<0) R=0;
Pokitto 31:f4b9b85c7b62 112
Pokitto 31:f4b9b85c7b62 113 color = B;
Pokitto 31:f4b9b85c7b62 114 color |= (G << 5);
Pokitto 31:f4b9b85c7b62 115 color |= (R << 11);
Pokitto 31:f4b9b85c7b62 116 return color;
Pokitto 31:f4b9b85c7b62 117 }
Pokitto 31:f4b9b85c7b62 118
Pokitto 31:f4b9b85c7b62 119 void Display::tweenPalette(uint16_t* ram_pal, const uint16_t* pal_1, const uint16_t* pal_2, uint8_t factor) {
Pokitto 31:f4b9b85c7b62 120 for (uint8_t i = 0; i<16 ; i++) {
Pokitto 31:f4b9b85c7b62 121 ram_pal[i] = interpolateColor(pal_1[i],pal_2[i],factor);
Pokitto 31:f4b9b85c7b62 122 }
Pokitto 31:f4b9b85c7b62 123 }
Pokitto 31:f4b9b85c7b62 124
Pokitto 31:f4b9b85c7b62 125
Pokitto 31:f4b9b85c7b62 126
Pokitto 31:f4b9b85c7b62 127