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@17:833f1b69e11d, 2019-04-03 (annotated)

Committer:
MartinJohnson
Date:
Wed Apr 03 22:05:56 2019 +0000
Revision:
17:833f1b69e11d
Parent:
14:3035b3271395 
update library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MartinJohnson 0:404dae88af71 1 /***************************************************************************
MartinJohnson 0:404dae88af71 2 * STM32 VGA demo
MartinJohnson 0:404dae88af71 3
MartinJohnson 0:404dae88af71 4 ### demo.c
MartinJohnson 0:404dae88af71 5
MartinJohnson 0:404dae88af71 6 # This program is free software; you can redistribute it and/or modify
MartinJohnson 0:404dae88af71 7 # it under the terms of the GNU General Public License as published by
MartinJohnson 0:404dae88af71 8 # the Free Software Foundation; either version 2 of the License, or
MartinJohnson 0:404dae88af71 9 # (at your option) any later version.
MartinJohnson 0:404dae88af71 10 #
MartinJohnson 0:404dae88af71 11 # This program is distributed in the hope that it will be useful,
MartinJohnson 0:404dae88af71 12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
MartinJohnson 0:404dae88af71 13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
MartinJohnson 0:404dae88af71 14 # GNU General Public License for more details.
MartinJohnson 0:404dae88af71 15 #
MartinJohnson 0:404dae88af71 16 # You should have received a copy of the GNU General Public License
MartinJohnson 0:404dae88af71 17 # along with this program; if not, write to the Free Software
MartinJohnson 0:404dae88af71 18 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
MartinJohnson 0:404dae88af71 19
MartinJohnson 0:404dae88af71 20 ***************************************************************************/
MartinJohnson 0:404dae88af71 21
MartinJohnson 0:404dae88af71 22 #include "stm32f30x.h"
MartinJohnson 0:404dae88af71 23 #include "sys.h"
MartinJohnson 0:404dae88af71 24 #include "video.h"
MartinJohnson 0:404dae88af71 25 #include "gdi.h"
MartinJohnson 0:404dae88af71 26 #include "string.h"
MartinJohnson 0:404dae88af71 27 //#include <stdlib.h>
MartinJohnson 0:404dae88af71 28
MartinJohnson 0:404dae88af71 29 extern volatile u32 sysTicks;
MartinJohnson 0:404dae88af71 30 int rndseed=0;
MartinJohnson 0:404dae88af71 31
MartinJohnson 0:404dae88af71 32 void srand(int i) {
MartinJohnson 0:404dae88af71 33 rndseed=i;
MartinJohnson 0:404dae88af71 34 }
MartinJohnson 0:404dae88af71 35
MartinJohnson 0:404dae88af71 36
MartinJohnson 0:404dae88af71 37 int rand() {
MartinJohnson 0:404dae88af71 38 return( ((rndseed = rndseed * 214013L + 2531011L) >> 16) &
MartinJohnson 0:404dae88af71 39 0x7fff );
MartinJohnson 0:404dae88af71 40 }
MartinJohnson 0:404dae88af71 41
MartinJohnson 0:404dae88af71 42 const u8 deBadBoys1[] = { 0x00, 0x00,
MartinJohnson 0:404dae88af71 43 0x00, 0x00,
MartinJohnson 0:404dae88af71 44 0x07, 0xc0,
MartinJohnson 0:404dae88af71 45 0x1f, 0xf0,
MartinJohnson 0:404dae88af71 46 0x3f, 0xf8,
MartinJohnson 0:404dae88af71 47 0x33, 0x98,
MartinJohnson 0:404dae88af71 48 0x3f, 0xf8,
MartinJohnson 0:404dae88af71 49 0x0c, 0x60,
MartinJohnson 0:404dae88af71 50 0x1b, 0xb0,
MartinJohnson 0:404dae88af71 51 0x30, 0x18,
MartinJohnson 0:404dae88af71 52 0x00, 0x00,
MartinJohnson 0:404dae88af71 53 0x00, 0x00 };
MartinJohnson 0:404dae88af71 54
MartinJohnson 0:404dae88af71 55 const u8 deBadBoys2[] = { 0x00, 0x00,
MartinJohnson 0:404dae88af71 56 0x00, 0x00,
MartinJohnson 0:404dae88af71 57 0x07, 0xc0,
MartinJohnson 0:404dae88af71 58 0x1f, 0xf0,
MartinJohnson 0:404dae88af71 59 0x3f, 0xf8,
MartinJohnson 0:404dae88af71 60 0x33, 0x98,
MartinJohnson 0:404dae88af71 61 0x3f, 0xf8,
MartinJohnson 0:404dae88af71 62 0x0c, 0x60,
MartinJohnson 0:404dae88af71 63 0x1b, 0xb0,
MartinJohnson 0:404dae88af71 64 0x0c, 0x60,
MartinJohnson 0:404dae88af71 65 0x00, 0x00,
MartinJohnson 0:404dae88af71 66 0x00, 0x00 };
MartinJohnson 0:404dae88af71 67 void conway_demo(void);
MartinJohnson 0:404dae88af71 68 void demoInit(void) {
MartinJohnson 0:404dae88af71 69
MartinJohnson 0:404dae88af71 70 i32 x, y, x1, y1, i, flip;
MartinJohnson 0:404dae88af71 71
MartinJohnson 0:404dae88af71 72
MartinJohnson 0:404dae88af71 73 // Demo Point
MartinJohnson 14:3035b3271395 74 //while(1) {
MartinJohnson 3:93e488fbb8a2 75 GPIOE->ODR|=0x100;
MartinJohnson 0:404dae88af71 76 vidClearScreen();
MartinJohnson 3:93e488fbb8a2 77 GPIOE->ODR|=0x200;
MartinJohnson 0:404dae88af71 78 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 3:93e488fbb8a2 79 GPIOE->ODR|=0x300;
MartinJohnson 3:93e488fbb8a2 80 GPIOE->ODR|=0x400;
MartinJohnson 14:3035b3271395 81 gdiDrawTextEx(40, 55, "STM32F3 Discovery", GDI_ROP_COPY);
MartinJohnson 14:3035b3271395 82 gdiDrawTextEx(40, 70, "Point Demo", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 83 GPIOE->ODR|=0x500;
MartinJohnson 3:93e488fbb8a2 84 vidNextBuffer();
MartinJohnson 3:93e488fbb8a2 85 sysDelayMs(2000);
MartinJohnson 3:93e488fbb8a2 86 GPIOE->ODR|=0x600;
MartinJohnson 0:404dae88af71 87 srand(sysTicks);
MartinJohnson 0:404dae88af71 88 for (i = 0; i < 950000; i++) {
MartinJohnson 0:404dae88af71 89 // sysDelayMs(1);
MartinJohnson 0:404dae88af71 90 x = rand(); x = x % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 91 y = rand(); y = y % VID_VSIZE - 1;
MartinJohnson 3:93e488fbb8a2 92 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 93 gdiPoint(NULL,x,y,GDI_ROP_XOR);
MartinJohnson 3:93e488fbb8a2 94 if(i%20000==0)
MartinJohnson 3:93e488fbb8a2 95 vidNextBuffer();
MartinJohnson 0:404dae88af71 96 }
MartinJohnson 3:93e488fbb8a2 97 vidNextBuffer();
MartinJohnson 0:404dae88af71 98 sysDelayMs(300);
MartinJohnson 0:404dae88af71 99 GPIOE->ODR=0x700;
MartinJohnson 0:404dae88af71 100
MartinJohnson 3:93e488fbb8a2 101 // conway_demo();
MartinJohnson 3:93e488fbb8a2 102
MartinJohnson 14:3035b3271395 103 // if(GPIOA->IDR&1) bubble_demo();
MartinJohnson 0:404dae88af71 104
MartinJohnson 0:404dae88af71 105 // Demo Line
MartinJohnson 0:404dae88af71 106
MartinJohnson 0:404dae88af71 107 vidClearScreen();
MartinJohnson 0:404dae88af71 108 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 14:3035b3271395 109 gdiDrawTextEx(40, 55, "STM32F3 Discovery", GDI_ROP_COPY);
MartinJohnson 14:3035b3271395 110 gdiDrawTextEx(40, 70, "Line Demo", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 111 vidNextBuffer();
MartinJohnson 0:404dae88af71 112 sysDelayMs(300);
MartinJohnson 0:404dae88af71 113 srand(sysTicks);
MartinJohnson 0:404dae88af71 114 for (i = 0; i < 10000; i++) {
MartinJohnson 0:404dae88af71 115 // sysDelayMs(50);
MartinJohnson 0:404dae88af71 116 x = rand(); x = x % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 117 y = rand(); y = y % VID_VSIZE - 1;
MartinJohnson 0:404dae88af71 118 x1 = rand(); x1 = x1 % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 119 y1 = rand(); y1 = y1 % VID_VSIZE - 1;
MartinJohnson 3:93e488fbb8a2 120 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 121 gdiLine(NULL,x,y,x1,y1,GDI_ROP_XOR);
MartinJohnson 3:93e488fbb8a2 122 if(i%500==0)
MartinJohnson 3:93e488fbb8a2 123 vidNextBuffer();
MartinJohnson 0:404dae88af71 124 }
MartinJohnson 0:404dae88af71 125 sysDelayMs(300);
MartinJohnson 0:404dae88af71 126
MartinJohnson 0:404dae88af71 127 // Demo Square
MartinJohnson 0:404dae88af71 128
MartinJohnson 0:404dae88af71 129 vidClearScreen();
MartinJohnson 0:404dae88af71 130 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 14:3035b3271395 131 gdiDrawTextEx(40, 55, "STM32F3 Discovery", GDI_ROP_COPY);
MartinJohnson 14:3035b3271395 132 gdiDrawTextEx(40, 70, "Rectangle Demo", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 133 vidNextBuffer();
MartinJohnson 0:404dae88af71 134 sysDelayMs(300);
MartinJohnson 0:404dae88af71 135 srand(sysTicks);
MartinJohnson 14:3035b3271395 136 for (i = 0; i < 8000; i++) {
MartinJohnson 0:404dae88af71 137 // sysDelayMs(50);
MartinJohnson 0:404dae88af71 138 x = rand(); x = x % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 139 y = rand(); y = y % VID_VSIZE - 1;
MartinJohnson 0:404dae88af71 140 x1 = rand(); x1 = x1 % 100;
MartinJohnson 0:404dae88af71 141 y1 = rand(); y1 = y1 % 100;
MartinJohnson 3:93e488fbb8a2 142 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 143 gdiRectangle(x,y,x1,y1,GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 144 if(i%50==0)
MartinJohnson 3:93e488fbb8a2 145 vidNextBuffer();
MartinJohnson 3:93e488fbb8a2 146
MartinJohnson 0:404dae88af71 147 }
MartinJohnson 0:404dae88af71 148 sysDelayMs(300);
MartinJohnson 0:404dae88af71 149
MartinJohnson 0:404dae88af71 150 // Demo Circle
MartinJohnson 0:404dae88af71 151
MartinJohnson 0:404dae88af71 152 vidClearScreen();
MartinJohnson 0:404dae88af71 153 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 14:3035b3271395 154 gdiDrawTextEx(40, 55, "STM32F3 Discovery", GDI_ROP_COPY);
MartinJohnson 14:3035b3271395 155 gdiDrawTextEx(40, 70, "Circle Demo", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 156 vidNextBuffer();
MartinJohnson 0:404dae88af71 157 sysDelayMs(300);
MartinJohnson 0:404dae88af71 158 srand(sysTicks);
MartinJohnson 3:93e488fbb8a2 159 for (i = 0; i < 2000; i++) {
MartinJohnson 0:404dae88af71 160 // sysDelayMs(20);
MartinJohnson 0:404dae88af71 161 x = rand(); x = x % (VID_PIXELS_X - 1);
MartinJohnson 0:404dae88af71 162 y = rand(); y = y % VID_VSIZE - 1;
MartinJohnson 0:404dae88af71 163 x1 = rand(); x1 = x1 % 80;
MartinJohnson 3:93e488fbb8a2 164 gdiSetColour(rand()%7+1);
MartinJohnson 3:93e488fbb8a2 165 gdiCircle(x,y,x1,0);
MartinJohnson 3:93e488fbb8a2 166 if(i%10==0)
MartinJohnson 3:93e488fbb8a2 167 vidNextBuffer();
MartinJohnson 0:404dae88af71 168 }
MartinJohnson 0:404dae88af71 169 sysDelayMs(300);
MartinJohnson 0:404dae88af71 170
MartinJohnson 0:404dae88af71 171 // Demo Bitmap
MartinJohnson 0:404dae88af71 172
MartinJohnson 0:404dae88af71 173 vidClearScreen();
MartinJohnson 0:404dae88af71 174 gdiRectangle(0,0,(VID_PIXELS_X - 1),VID_VSIZE - 1,0);
MartinJohnson 14:3035b3271395 175 gdiDrawTextEx(40, 55, "STM32F3 Discovery", GDI_ROP_COPY);
MartinJohnson 14:3035b3271395 176 gdiDrawTextEx(40, 70, "Bitmap Demo", GDI_ROP_COPY);
MartinJohnson 3:93e488fbb8a2 177 vidNextBuffer();
MartinJohnson 0:404dae88af71 178 sysDelayMs(300);
MartinJohnson 0:404dae88af71 179
MartinJohnson 0:404dae88af71 180 x = 100;
MartinJohnson 0:404dae88af71 181 y = 130;
MartinJohnson 0:404dae88af71 182 flip = 0;
MartinJohnson 3:93e488fbb8a2 183 for (i = 0; i < 10000; i++) {
MartinJohnson 0:404dae88af71 184 // sysDelayMs(150);
MartinJohnson 0:404dae88af71 185 x = rand(); x = x % (VID_PIXELS_X - 20);
MartinJohnson 0:404dae88af71 186 y = rand(); y = y % (VID_VSIZE - 20);
MartinJohnson 0:404dae88af71 187
MartinJohnson 3:93e488fbb8a2 188 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 189 if (flip) {
MartinJohnson 0:404dae88af71 190 flip = 0;
MartinJohnson 0:404dae88af71 191 gdiBitBlt(NULL,x,y,15,12,(pu8) deBadBoys1,GDI_ROP_COPY);
MartinJohnson 0:404dae88af71 192 } else {
MartinJohnson 0:404dae88af71 193 flip = 1;
MartinJohnson 0:404dae88af71 194 gdiBitBlt(NULL,x,y,15,12,(pu8) deBadBoys2,GDI_ROP_COPY);
MartinJohnson 0:404dae88af71 195 }
MartinJohnson 0:404dae88af71 196 x += 2;
MartinJohnson 3:93e488fbb8a2 197 if(i%500==0)
MartinJohnson 3:93e488fbb8a2 198 vidNextBuffer();
MartinJohnson 0:404dae88af71 199 }
MartinJohnson 0:404dae88af71 200 sysDelayMs(300);
MartinJohnson 0:404dae88af71 201 vidClearScreen();
MartinJohnson 3:93e488fbb8a2 202 for (i = 0; i < 10000; i++) {
MartinJohnson 0:404dae88af71 203 // sysDelayMs(150);
MartinJohnson 0:404dae88af71 204 x = rand(); x = x % (VID_PIXELS_X - 20);
MartinJohnson 0:404dae88af71 205 y = rand(); y = y % (VID_VSIZE - 20);
MartinJohnson 3:93e488fbb8a2 206 gdiSetColour(rand()%7+1);
MartinJohnson 0:404dae88af71 207 if (flip) {
MartinJohnson 0:404dae88af71 208 flip = 0;
MartinJohnson 0:404dae88af71 209 gdiBitBlt(NULL,x,y,15,12,(pu8) deBadBoys1,GDI_ROP_XOR);
MartinJohnson 0:404dae88af71 210 } else {
MartinJohnson 0:404dae88af71 211 flip = 1;
MartinJohnson 0:404dae88af71 212 gdiBitBlt(NULL,x,y,15,12,(pu8) deBadBoys2,GDI_ROP_XOR);
MartinJohnson 0:404dae88af71 213 }
MartinJohnson 0:404dae88af71 214 x += 2;
MartinJohnson 3:93e488fbb8a2 215 if(i%500==0)
MartinJohnson 3:93e488fbb8a2 216 vidNextBuffer();
MartinJohnson 0:404dae88af71 217 }
MartinJohnson 3:93e488fbb8a2 218 sysDelayMs(300);
MartinJohnson 0:404dae88af71 219
MartinJohnson 14:3035b3271395 220 //conway_demo();
MartinJohnson 14:3035b3271395 221 //}
MartinJohnson 0:404dae88af71 222
MartinJohnson 0:404dae88af71 223
MartinJohnson 0:404dae88af71 224 }
MartinJohnson 0:404dae88af71 225