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 }