Martin Johnson / Colour_Video_Demo

Demo of low res colour vga video for stm32f3 discovery board

Dependencies:   STM32F3-Discovery-minimal

Fork of Space_Invaders_Demo by Martin Johnson

demo.c@3:93e488fbb8a2, 2018-05-16 (annotated)

Committer:
MartinJohnson
Date:
Wed May 16 02:39:14 2018 +0000
Revision:
3:93e488fbb8a2
Parent:
0:404dae88af71
Child:
10:8ffcefda667a
working colour video output

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MartinJohnson 0:404dae88af71 1 /***************************************************************************
MartinJohnson 0:404dae88af71 2 * STM32 VGA demo
MartinJohnson 3:93e488fbb8a2 3 * Copyright (C) 2012 MASSEY 159.233 Italy
MartinJohnson 3:93e488fbb8a2 4 * http://www.MASSEY 159.233.eu
MartinJohnson 0:404dae88af71 5 * Written by Ruben H. Meleca
MartinJohnson 0:404dae88af71 6
MartinJohnson 0:404dae88af71 7 ### demo.c
MartinJohnson 0:404dae88af71 8
MartinJohnson 0:404dae88af71 9 # This program is free software; you can redistribute it and/or modify
MartinJohnson 0:404dae88af71 10 # it under the terms of the GNU General Public License as published by
MartinJohnson 0:404dae88af71 11 # the Free Software Foundation; either version 2 of the License, or
MartinJohnson 0:404dae88af71 12 # (at your option) any later version.
MartinJohnson 0:404dae88af71 13 #
MartinJohnson 0:404dae88af71 14 # This program is distributed in the hope that it will be useful,
MartinJohnson 0:404dae88af71 15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
MartinJohnson 0:404dae88af71 16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
MartinJohnson 0:404dae88af71 17 # GNU General Public License for more details.
MartinJohnson 0:404dae88af71 18 #
MartinJohnson 0:404dae88af71 19 # You should have received a copy of the GNU General Public License
MartinJohnson 0:404dae88af71 20 # along with this program; if not, write to the Free Software
MartinJohnson 0:404dae88af71 21 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
MartinJohnson 0:404dae88af71 22
MartinJohnson 0:404dae88af71 23 ***************************************************************************/
MartinJohnson 0:404dae88af71 24
MartinJohnson 0:404dae88af71 25 #include "stm32f30x.h"
MartinJohnson 0:404dae88af71 26 #include "sys.h"
MartinJohnson 0:404dae88af71 27 #include "video.h"
MartinJohnson 0:404dae88af71 28 #include "gdi.h"
MartinJohnson 0:404dae88af71 29 #include "string.h"
MartinJohnson 0:404dae88af71 30 //#include <stdlib.h>
MartinJohnson 0:404dae88af71 31
MartinJohnson 0:404dae88af71 32 extern volatile u32 sysTicks;
MartinJohnson 0:404dae88af71 33 int rndseed=0;
MartinJohnson 0:404dae88af71 34
MartinJohnson 0:404dae88af71 35 void srand(int i) {
MartinJohnson 0:404dae88af71 36 rndseed=i;
MartinJohnson 0:404dae88af71 37 }
MartinJohnson 0:404dae88af71 38
MartinJohnson 0:404dae88af71 39
MartinJohnson 0:404dae88af71 40 int rand() {
MartinJohnson 0:404dae88af71 41 return( ((rndseed = rndseed * 214013L + 2531011L) >> 16) &
MartinJohnson 0:404dae88af71 42 0x7fff );
MartinJohnson 0:404dae88af71 43 }
MartinJohnson 0:404dae88af71 44
MartinJohnson 0:404dae88af71 45 const u8 deBadBoys1[] = { 0x00, 0x00,
MartinJohnson 0:404dae88af71 46 0x00, 0x00,
MartinJohnson 0:404dae88af71 47 0x07, 0xc0,
MartinJohnson 0:404dae88af71 48 0x1f, 0xf0,
MartinJohnson 0:404dae88af71 49 0x3f, 0xf8,
MartinJohnson 0:404dae88af71 50 0x33, 0x98,
MartinJohnson 0:404dae88af71 51 0x3f, 0xf8,
MartinJohnson 0:404dae88af71 52 0x0c, 0x60,
MartinJohnson 0:404dae88af71 53 0x1b, 0xb0,
MartinJohnson 0:404dae88af71 54 0x30, 0x18,
MartinJohnson 0:404dae88af71 55 0x00, 0x00,
MartinJohnson 0:404dae88af71 56 0x00, 0x00 };
MartinJohnson 0:404dae88af71 57
MartinJohnson 0:404dae88af71 58 const u8 deBadBoys2[] = { 0x00, 0x00,
MartinJohnson 0:404dae88af71 59 0x00, 0x00,
MartinJohnson 0:404dae88af71 60 0x07, 0xc0,
MartinJohnson 0:404dae88af71 61 0x1f, 0xf0,
MartinJohnson 0:404dae88af71 62 0x3f, 0xf8,
MartinJohnson 0:404dae88af71 63 0x33, 0x98,
MartinJohnson 0:404dae88af71 64 0x3f, 0xf8,
MartinJohnson 0:404dae88af71 65 0x0c, 0x60,
MartinJohnson 0:404dae88af71 66 0x1b, 0xb0,
MartinJohnson 0:404dae88af71 67 0x0c, 0x60,
MartinJohnson 0:404dae88af71 68 0x00, 0x00,
MartinJohnson 0:404dae88af71 69 0x00, 0x00 };
MartinJohnson 0:404dae88af71 70 void conway_demo(void);
MartinJohnson 0:404dae88af71 71 void demoInit(void) {
MartinJohnson 0:404dae88af71 72
MartinJohnson 0:404dae88af71 73 i32 x, y, x1, y1, i, flip;
MartinJohnson 0:404dae88af71 74
MartinJohnson 0:404dae88af71 75
MartinJohnson 0:404dae88af71 76 // Demo Point
MartinJohnson 0:404dae88af71 77 while(1) {
MartinJohnson 3:93e488fbb8a2 78 GPIOE->ODR|=0x100;
MartinJohnson 0:404dae88af71 79 vidClearScreen();
MartinJohnson 3:93e488fbb8a2 80 GPIOE->ODR|=0x200;
MartinJohnson 0:404dae88af71 81 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 3:93e488fbb8a2 82 GPIOE->ODR|=0x300;
MartinJohnson 3:93e488fbb8a2 83 gdiDrawTextEx(180/4, 40, "MASSEY 159.233", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 84 GPIOE->ODR|=0x400;
MartinJohnson 3:93e488fbb8a2 85 gdiDrawTextEx(161/4, 55, "STM32F3 DISCOVERY", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 86 gdiDrawTextEx(172/4, 70, "POINT DEMO", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 87 GPIOE->ODR|=0x500;
MartinJohnson 3:93e488fbb8a2 88 vidNextBuffer();
MartinJohnson 3:93e488fbb8a2 89 sysDelayMs(2000);
MartinJohnson 3:93e488fbb8a2 90 GPIOE->ODR|=0x600;
MartinJohnson 0:404dae88af71 91 srand(sysTicks);
MartinJohnson 0:404dae88af71 92 for (i = 0; i < 950000; i++) {
MartinJohnson 0:404dae88af71 93 // sysDelayMs(1);
MartinJohnson 0:404dae88af71 94 x = rand(); x = x % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 95 y = rand(); y = y % VID_VSIZE - 1;
MartinJohnson 3:93e488fbb8a2 96 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 97 gdiPoint(NULL,x,y,GDI_ROP_XOR);
MartinJohnson 3:93e488fbb8a2 98 if(i%20000==0)
MartinJohnson 3:93e488fbb8a2 99 vidNextBuffer();
MartinJohnson 0:404dae88af71 100 }
MartinJohnson 3:93e488fbb8a2 101 vidNextBuffer();
MartinJohnson 0:404dae88af71 102 sysDelayMs(300);
MartinJohnson 0:404dae88af71 103 GPIOE->ODR=0x700;
MartinJohnson 0:404dae88af71 104
MartinJohnson 3:93e488fbb8a2 105 // conway_demo();
MartinJohnson 3:93e488fbb8a2 106
MartinJohnson 3:93e488fbb8a2 107 if(GPIOA->IDR&1) bubble_demo();
MartinJohnson 0:404dae88af71 108
MartinJohnson 0:404dae88af71 109 // Demo Line
MartinJohnson 0:404dae88af71 110
MartinJohnson 0:404dae88af71 111 vidClearScreen();
MartinJohnson 0:404dae88af71 112 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 3:93e488fbb8a2 113 gdiDrawTextEx(180/4, 40, "MASSEY 159.233", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 114 gdiDrawTextEx(161/4, 55, "STM32F3 DISCOVERY", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 115 gdiDrawTextEx(175/4, 70, "LINE DEMO", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 116 vidNextBuffer();
MartinJohnson 0:404dae88af71 117 sysDelayMs(300);
MartinJohnson 0:404dae88af71 118 srand(sysTicks);
MartinJohnson 0:404dae88af71 119 for (i = 0; i < 10000; i++) {
MartinJohnson 0:404dae88af71 120 // sysDelayMs(50);
MartinJohnson 0:404dae88af71 121 x = rand(); x = x % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 122 y = rand(); y = y % VID_VSIZE - 1;
MartinJohnson 0:404dae88af71 123 x1 = rand(); x1 = x1 % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 124 y1 = rand(); y1 = y1 % VID_VSIZE - 1;
MartinJohnson 3:93e488fbb8a2 125 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 126 gdiLine(NULL,x,y,x1,y1,GDI_ROP_XOR);
MartinJohnson 3:93e488fbb8a2 127 if(i%500==0)
MartinJohnson 3:93e488fbb8a2 128 vidNextBuffer();
MartinJohnson 0:404dae88af71 129 }
MartinJohnson 0:404dae88af71 130 sysDelayMs(300);
MartinJohnson 0:404dae88af71 131
MartinJohnson 0:404dae88af71 132 // Demo Square
MartinJohnson 0:404dae88af71 133
MartinJohnson 0:404dae88af71 134 vidClearScreen();
MartinJohnson 0:404dae88af71 135 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 3:93e488fbb8a2 136 gdiDrawTextEx(180/4, 40, "MASSEY 159.233", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 137 gdiDrawTextEx(161/4, 55, "STM32F3 DISCOVERY", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 138 gdiDrawTextEx(157/4, 70, "RECTANGLE DEMO", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 139 vidNextBuffer();
MartinJohnson 0:404dae88af71 140 sysDelayMs(300);
MartinJohnson 0:404dae88af71 141 srand(sysTicks);
MartinJohnson 0:404dae88af71 142 for (i = 0; i < 1000; i++) {
MartinJohnson 0:404dae88af71 143 // sysDelayMs(50);
MartinJohnson 0:404dae88af71 144 x = rand(); x = x % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 145 y = rand(); y = y % VID_VSIZE - 1;
MartinJohnson 0:404dae88af71 146 x1 = rand(); x1 = x1 % 100;
MartinJohnson 0:404dae88af71 147 y1 = rand(); y1 = y1 % 100;
MartinJohnson 3:93e488fbb8a2 148 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 149 gdiRectangle(x,y,x1,y1,GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 150 if(i%50==0)
MartinJohnson 3:93e488fbb8a2 151 vidNextBuffer();
MartinJohnson 3:93e488fbb8a2 152
MartinJohnson 0:404dae88af71 153 }
MartinJohnson 0:404dae88af71 154 sysDelayMs(300);
MartinJohnson 0:404dae88af71 155
MartinJohnson 0:404dae88af71 156 // Demo Circle
MartinJohnson 0:404dae88af71 157
MartinJohnson 0:404dae88af71 158 vidClearScreen();
MartinJohnson 0:404dae88af71 159 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 3:93e488fbb8a2 160 gdiDrawTextEx(180/4, 40, "MASSEY 159.233", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 161 gdiDrawTextEx(161/4, 55, "STM32F3 DISCOVERY", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 162 gdiDrawTextEx(165/4, 70, "CIRCLE DEMO", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 163 vidNextBuffer();
MartinJohnson 0:404dae88af71 164 sysDelayMs(300);
MartinJohnson 0:404dae88af71 165 srand(sysTicks);
MartinJohnson 3:93e488fbb8a2 166 for (i = 0; i < 2000; i++) {
MartinJohnson 0:404dae88af71 167 // sysDelayMs(20);
MartinJohnson 0:404dae88af71 168 x = rand(); x = x % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 169 y = rand(); y = y % VID_VSIZE - 1;
MartinJohnson 0:404dae88af71 170 x1 = rand(); x1 = x1 % 80;
MartinJohnson 3:93e488fbb8a2 171 gdiSetColour(rand()%7+1);
MartinJohnson 3:93e488fbb8a2 172 gdiCircle(x,y,x1,0);
MartinJohnson 3:93e488fbb8a2 173 if(i%10==0)
MartinJohnson 3:93e488fbb8a2 174 vidNextBuffer();
MartinJohnson 0:404dae88af71 175 }
MartinJohnson 0:404dae88af71 176 sysDelayMs(300);
MartinJohnson 0:404dae88af71 177
MartinJohnson 0:404dae88af71 178 // Demo Bitmap
MartinJohnson 0:404dae88af71 179
MartinJohnson 0:404dae88af71 180 vidClearScreen();
MartinJohnson 0:404dae88af71 181 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 3:93e488fbb8a2 182 gdiDrawTextEx(180/4, 40, "MASSEY 159.233", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 183 gdiDrawTextEx(161/4, 55, "STM32F3 DISCOVERY", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 184 gdiDrawTextEx(165/4, 70, "BITMAP DEMO", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 185 vidNextBuffer();
MartinJohnson 0:404dae88af71 186 sysDelayMs(300);
MartinJohnson 0:404dae88af71 187
MartinJohnson 0:404dae88af71 188 x = 100;
MartinJohnson 0:404dae88af71 189 y = 130;
MartinJohnson 0:404dae88af71 190 flip = 0;
MartinJohnson 3:93e488fbb8a2 191 for (i = 0; i < 10000; i++) {
MartinJohnson 0:404dae88af71 192 // sysDelayMs(150);
MartinJohnson 0:404dae88af71 193 x = rand(); x = x % (VID_PIXELS_X - 20);
MartinJohnson 0:404dae88af71 194 y = rand(); y = y % (VID_VSIZE - 20);
MartinJohnson 0:404dae88af71 195
MartinJohnson 3:93e488fbb8a2 196 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 197 if (flip) {
MartinJohnson 0:404dae88af71 198 flip = 0;
MartinJohnson 0:404dae88af71 199 gdiBitBlt(NULL,x,y,15,12,(pu8) deBadBoys1,GDI_ROP_COPY);
MartinJohnson 0:404dae88af71 200 } else {
MartinJohnson 0:404dae88af71 201 flip = 1;
MartinJohnson 0:404dae88af71 202 gdiBitBlt(NULL,x,y,15,12,(pu8) deBadBoys2,GDI_ROP_COPY);
MartinJohnson 0:404dae88af71 203 }
MartinJohnson 0:404dae88af71 204 x += 2;
MartinJohnson 3:93e488fbb8a2 205 if(i%500==0)
MartinJohnson 3:93e488fbb8a2 206 vidNextBuffer();
MartinJohnson 0:404dae88af71 207 }
MartinJohnson 0:404dae88af71 208 sysDelayMs(300);
MartinJohnson 0:404dae88af71 209 vidClearScreen();
MartinJohnson 3:93e488fbb8a2 210 for (i = 0; i < 10000; i++) {
MartinJohnson 0:404dae88af71 211 // sysDelayMs(150);
MartinJohnson 0:404dae88af71 212 x = rand(); x = x % (VID_PIXELS_X - 20);
MartinJohnson 0:404dae88af71 213 y = rand(); y = y % (VID_VSIZE - 20);
MartinJohnson 3:93e488fbb8a2 214 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 215 if (flip) {
MartinJohnson 0:404dae88af71 216 flip = 0;
MartinJohnson 0:404dae88af71 217 gdiBitBlt(NULL,x,y,15,12,(pu8) deBadBoys1,GDI_ROP_XOR);
MartinJohnson 0:404dae88af71 218 } else {
MartinJohnson 0:404dae88af71 219 flip = 1;
MartinJohnson 0:404dae88af71 220 gdiBitBlt(NULL,x,y,15,12,(pu8) deBadBoys2,GDI_ROP_XOR);
MartinJohnson 0:404dae88af71 221 }
MartinJohnson 0:404dae88af71 222 x += 2;
MartinJohnson 3:93e488fbb8a2 223 if(i%500==0)
MartinJohnson 3:93e488fbb8a2 224 vidNextBuffer();
MartinJohnson 0:404dae88af71 225 }
MartinJohnson 3:93e488fbb8a2 226 sysDelayMs(300);
MartinJohnson 0:404dae88af71 227
MartinJohnson 3:93e488fbb8a2 228 conway_demo();
MartinJohnson 0:404dae88af71 229 }
MartinJohnson 0:404dae88af71 230
MartinJohnson 0:404dae88af71 231
MartinJohnson 0:404dae88af71 232 }
MartinJohnson 0:404dae88af71 233