drivers/mga_vid_test.c

   1 /*
   2  *
   3  * mga_vid_test.c
   4  *
   5  * Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
   6  * Sept 1999
   7  *
   8  * This software has been released under the terms of the GNU Public
   9  * license. See http://www.gnu.org/copyleft/gpl.html for details.
  10  */
  11
  12 //#include <stddef.h>
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <sys/ioctl.h>
  16 #include <unistd.h>
  17 #include <fcntl.h>
  18 #include <sys/mman.h>
  19 #include <inttypes.h>
  20 #include <string.h>
  21 #include "mga_vid.h"
  22
  23 mga_vid_config_t config;
  24 uint8_t *mga_vid_base;
  25 uint32_t is_g400;
  26
  27 #define SRC_IMAGE_WIDTH 256
  28 #define SRC_IMAGE_HEIGHT 256
  29
  30 uint8_t y_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
  31 uint8_t cr_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
  32 uint8_t cb_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
  33
  34
  35 void
  36 write_frame_g200(uint8_t *y,uint8_t *cr, uint8_t *cb)
  37 {
  38         uint8_t *dest;
  39         uint32_t bespitch,h,w;
  40
  41         dest = mga_vid_base;
  42         bespitch = (config.src_width + 31) & ~31;
  43
  44         for(h=0; h < config.src_height; h++)
  45         {
  46                 memcpy(dest, y, config.src_width);
  47                 y += config.src_width;
  48                 dest += bespitch;
  49         }
  50
  51         for(h=0; h < config.src_height/2; h++)
  52         {
  53                 for(w=0; w < config.src_width/2; w++)
  54                 {
  55                         *dest++ = *cb++;
  56                         *dest++ = *cr++;
  57                 }
  58                 dest += bespitch - config.src_width;
  59         }
  60 }
  61
  62 void
  63 write_frame_g400(uint8_t *y,uint8_t *cr, uint8_t *cb)
  64 {
  65         uint8_t *dest;
  66         uint32_t bespitch,h;
  67
  68         dest = mga_vid_base;
  69         bespitch = (config.src_width + 31) & ~31;
  70
  71         for(h=0; h < config.src_height; h++)
  72         {
  73                 memcpy(dest, y, config.src_width);
  74                 y += config.src_width;
  75                 dest += bespitch;
  76         }
  77
  78         for(h=0; h < config.src_height/2; h++)
  79         {
  80                 memcpy(dest, cb, config.src_width/2);
  81                 cb += config.src_width/2;
  82                 dest += bespitch/2;
  83         }
  84
  85         for(h=0; h < config.src_height/2; h++)
  86         {
  87                 memcpy(dest, cr, config.src_width/2);
  88                 cr += config.src_width/2;
  89                 dest += bespitch/2;
  90         }
  91 }
  92
  93 void write_frame(uint8_t *y,uint8_t *cr, uint8_t *cb)
  94 {
  95         if(is_g400)
  96                 write_frame_g400(y,cr,cb);
  97         else
  98                 write_frame_g200(y,cr,cb);
  99 }
 100
 101 void
 102 draw_cool_pattern(void)
 103 {
 104         int i,x,y;
 105
 106         i = 0;
 107         for (y=0; y<config.src_height; y++) {
 108                 for (x=0; x<config.src_width; x++) {
 109                         y_image[i++] = x*x/2 + y*y/2 - 128;
 110                 }
 111         }
 112
 113         i = 0;
 114         for (y=0; y<config.src_height/2; y++)
 115                 for (x=0; x<config.src_width/2; x++)
 116                 {
 117                                 cr_image[i++] = x - 128;
 118                 }
 119
 120         i = 0;
 121         for (y=0; y<config.src_height/2; y++)
 122                 for (x=0; x<config.src_width/2; x++)
 123                 {
 124                                 cb_image[i++] = y - 128;
 125                 }
 126 }
 127
 128 void
 129 draw_color_blend(void)
 130 {
 131         int i,x,y;
 132
 133         i = 0;
 134         for (y=0; y<config.src_height; y++) {
 135                 for (x=0; x<config.src_width; x++) {
 136                         y_image[i++] = 0;
 137                 }
 138         }
 139
 140         i = 0;
 141         for (y=0; y<config.src_height/2; y++)
 142                 for (x=0; x<config.src_width/2; x++)
 143                 {
 144                                 cr_image[i++] = x - 128;
 145                 }
 146
 147         i = 0;
 148         for (y=0; y<config.src_height/2; y++)
 149                 for (x=0; x<config.src_width/2; x++)
 150                 {
 151                                 cb_image[i++] = y - 128;
 152                 }
 153 }
 154
 155
 156 int
 157 main(void)
 158 {
 159         int f;
 160
 161         f = open("/dev/mga_vid",O_RDWR);
 162
 163         if(f == -1)
 164         {
 165                 fprintf(stderr,"Couldn't open driver\n");
 166                 exit(1);
 167         }
 168
 169         config.version = MGA_VID_VERSION;
 170         config.src_width = SRC_IMAGE_WIDTH;
 171         config.src_height= SRC_IMAGE_HEIGHT;
 172         config.dest_width = SRC_IMAGE_WIDTH;
 173         config.dest_height = SRC_IMAGE_HEIGHT;
 174         config.x_org= 10;
 175         config.y_org= 10;
 176         config.colkey_on = 0;
 177         config.format = MGA_VID_FORMAT_YV12;
 178         config.frame_size=SRC_IMAGE_WIDTH*SRC_IMAGE_HEIGHT*2;
 179         config.num_frames=1;
 180
 181         if (ioctl(f,MGA_VID_CONFIG,&config))
 182         {
 183                 perror("Error in config ioctl");
 184         }
 185
 186         if (config.card_type == MGA_G200)
 187         {
 188                 printf("Testing MGA G200 Backend Scaler with %d MB of RAM\n", config.ram_size);
 189           is_g400 = 0;
 190         }
 191         else
 192         {
 193                 printf("Testing MGA G400 Backend Scaler with %d MB of RAM\n", config.ram_size);
 194           is_g400 = 1;
 195         }
 196
 197         ioctl(f,MGA_VID_ON,0);
 198         mga_vid_base = (uint8_t*)mmap(0,256 * 4096,PROT_WRITE,MAP_SHARED,f,0);
 199         printf("mga_vid_base = %8p\n",mga_vid_base);
 200
 201
 202         //memset(y_image,80,256 * 128);
 203         //memset(cr_image,80,256/2 * 20);
 204         //memset(cb_image,80,256/2 * 20);
 205         write_frame(y_image,cr_image,cb_image);
 206         printf("(1) There should be a green square, offset by 10 pixels from\n"
 207                            "    the upper left corner displayed\n");
 208         sleep(3);
 209
 210
 211         draw_cool_pattern();
 212         write_frame(y_image,cr_image,cb_image);
 213         printf("(2) There should be a cool mosaic like pattern now.\n");
 214         sleep(3);
 215
 216         draw_color_blend();
 217         write_frame(y_image,cr_image,cb_image);
 218         printf("(3) There should be a color blend with black, red, purple, blue\n"
 219                            "    corners (starting top left going CW)\n");
 220         sleep(3);
 221
 222         ioctl(f,MGA_VID_OFF,0);
 223
 224         close(f);
 225         return 0;
 226 }