drivers/mga_vid_test.c

   1 /*
   2  * Copyright (C) 1999 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
   3  *
   4  * This file is part of mga_vid.
   5  *
   6  * mga_vid is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * mga_vid is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with mga_vid; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 //#include <stddef.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <sys/ioctl.h>
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/mman.h>
  28 #include <inttypes.h>
  29 #include <string.h>
  30 #include "mga_vid.h"
  31
  32 mga_vid_config_t config;
  33 uint8_t *mga_vid_base;
  34 uint32_t is_g400;
  35
  36 #define SRC_IMAGE_WIDTH 256
  37 #define SRC_IMAGE_HEIGHT 256
  38
  39 uint8_t y_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
  40 uint8_t cr_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
  41 uint8_t cb_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
  42
  43
  44 void
  45 write_frame_g200(uint8_t *y,uint8_t *cr, uint8_t *cb)
  46 {
  47         uint8_t *dest;
  48         uint32_t bespitch,h,w;
  49
  50         dest = mga_vid_base;
  51         bespitch = (config.src_width + 31) & ~31;
  52
  53         for(h=0; h < config.src_height; h++)
  54         {
  55                 memcpy(dest, y, config.src_width);
  56                 y += config.src_width;
  57                 dest += bespitch;
  58         }
  59
  60         for(h=0; h < config.src_height/2; h++)
  61         {
  62                 for(w=0; w < config.src_width/2; w++)
  63                 {
  64                         *dest++ = *cb++;
  65                         *dest++ = *cr++;
  66                 }
  67                 dest += bespitch - config.src_width;
  68         }
  69 }
  70
  71 void
  72 write_frame_g400(uint8_t *y,uint8_t *cr, uint8_t *cb)
  73 {
  74         uint8_t *dest;
  75         uint32_t bespitch,h;
  76
  77         dest = mga_vid_base;
  78         bespitch = (config.src_width + 31) & ~31;
  79
  80         for(h=0; h < config.src_height; h++)
  81         {
  82                 memcpy(dest, y, config.src_width);
  83                 y += config.src_width;
  84                 dest += bespitch;
  85         }
  86
  87         for(h=0; h < config.src_height/2; h++)
  88         {
  89                 memcpy(dest, cb, config.src_width/2);
  90                 cb += config.src_width/2;
  91                 dest += bespitch/2;
  92         }
  93
  94         for(h=0; h < config.src_height/2; h++)
  95         {
  96                 memcpy(dest, cr, config.src_width/2);
  97                 cr += config.src_width/2;
  98                 dest += bespitch/2;
  99         }
 100 }
 101
 102 void write_frame(uint8_t *y,uint8_t *cr, uint8_t *cb)
 103 {
 104         if(is_g400)
 105                 write_frame_g400(y,cr,cb);
 106         else
 107                 write_frame_g200(y,cr,cb);
 108 }
 109
 110 void
 111 draw_cool_pattern(void)
 112 {
 113         int i,x,y;
 114
 115         i = 0;
 116         for (y=0; y<config.src_height; y++) {
 117                 for (x=0; x<config.src_width; x++) {
 118                         y_image[i++] = x*x/2 + y*y/2 - 128;
 119                 }
 120         }
 121
 122         i = 0;
 123         for (y=0; y<config.src_height/2; y++)
 124                 for (x=0; x<config.src_width/2; x++)
 125                 {
 126                                 cr_image[i++] = x - 128;
 127                 }
 128
 129         i = 0;
 130         for (y=0; y<config.src_height/2; y++)
 131                 for (x=0; x<config.src_width/2; x++)
 132                 {
 133                                 cb_image[i++] = y - 128;
 134                 }
 135 }
 136
 137 void
 138 draw_color_blend(void)
 139 {
 140         int i,x,y;
 141
 142         i = 0;
 143         for (y=0; y<config.src_height; y++) {
 144                 for (x=0; x<config.src_width; x++) {
 145                         y_image[i++] = 0;
 146                 }
 147         }
 148
 149         i = 0;
 150         for (y=0; y<config.src_height/2; y++)
 151                 for (x=0; x<config.src_width/2; x++)
 152                 {
 153                                 cr_image[i++] = x - 128;
 154                 }
 155
 156         i = 0;
 157         for (y=0; y<config.src_height/2; y++)
 158                 for (x=0; x<config.src_width/2; x++)
 159                 {
 160                                 cb_image[i++] = y - 128;
 161                 }
 162 }
 163
 164
 165 int
 166 main(void)
 167 {
 168         int f;
 169
 170         f = open("/dev/mga_vid",O_RDWR);
 171
 172         if(f == -1)
 173         {
 174                 fprintf(stderr,"Couldn't open driver\n");
 175                 exit(1);
 176         }
 177
 178         config.version = MGA_VID_VERSION;
 179         config.src_width = SRC_IMAGE_WIDTH;
 180         config.src_height= SRC_IMAGE_HEIGHT;
 181         config.dest_width = SRC_IMAGE_WIDTH;
 182         config.dest_height = SRC_IMAGE_HEIGHT;
 183         config.x_org= 10;
 184         config.y_org= 10;
 185         config.colkey_on = 0;
 186         config.format = MGA_VID_FORMAT_YV12;
 187         config.frame_size=SRC_IMAGE_WIDTH*SRC_IMAGE_HEIGHT*2;
 188         config.num_frames=1;
 189
 190         if (ioctl(f,MGA_VID_CONFIG,&config))
 191         {
 192                 perror("Error in config ioctl");
 193         }
 194
 195         if (config.card_type == MGA_G200)
 196         {
 197                 printf("Testing MGA G200 Backend Scaler with %d MB of RAM\n", config.ram_size);
 198           is_g400 = 0;
 199         }
 200         else
 201         {
 202                 printf("Testing MGA G400 Backend Scaler with %d MB of RAM\n", config.ram_size);
 203           is_g400 = 1;
 204         }
 205
 206         ioctl(f,MGA_VID_ON,0);
 207         mga_vid_base = (uint8_t*)mmap(0,256 * 4096,PROT_WRITE,MAP_SHARED,f,0);
 208         printf("mga_vid_base = %8p\n",mga_vid_base);
 209
 210
 211         //memset(y_image,80,256 * 128);
 212         //memset(cr_image,80,256/2 * 20);
 213         //memset(cb_image,80,256/2 * 20);
 214         write_frame(y_image,cr_image,cb_image);
 215         printf("(1) There should be a green square, offset by 10 pixels from\n"
 216                            "    the upper left corner displayed\n");
 217         sleep(3);
 218
 219
 220         draw_cool_pattern();
 221         write_frame(y_image,cr_image,cb_image);
 222         printf("(2) There should be a cool mosaic like pattern now.\n");
 223         sleep(3);
 224
 225         draw_color_blend();
 226         write_frame(y_image,cr_image,cb_image);
 227         printf("(3) There should be a color blend with black, red, purple, blue\n"
 228                            "    corners (starting top left going CW)\n");
 229         sleep(3);
 230
 231         ioctl(f,MGA_VID_OFF,0);
 232
 233         close(f);
 234         return 0;
 235 }