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/*
* Copyright (C) 1999 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
*
* This file is part of mga_vid.
*
* mga_vid is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mga_vid is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mga_vid; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
//#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <inttypes.h>
#include <string.h>
#include "mga_vid.h"
mga_vid_config_t config;
uint8_t *mga_vid_base;
uint32_t is_g400;
#define SRC_IMAGE_WIDTH 256
#define SRC_IMAGE_HEIGHT 256
uint8_t y_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
uint8_t cr_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
uint8_t cb_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
void
write_frame_g200(uint8_t *y,uint8_t *cr, uint8_t *cb)
{
uint8_t *dest;
uint32_t bespitch,h,w;
dest = mga_vid_base;
bespitch = (config.src_width + 31) & ~31;
for(h=0; h < config.src_height; h++)
{
memcpy(dest, y, config.src_width);
y += config.src_width;
dest += bespitch;
}
for(h=0; h < config.src_height/2; h++)
{
for(w=0; w < config.src_width/2; w++)
{
*dest++ = *cb++;
*dest++ = *cr++;
}
dest += bespitch - config.src_width;
}
}
void
write_frame_g400(uint8_t *y,uint8_t *cr, uint8_t *cb)
{
uint8_t *dest;
uint32_t bespitch,h;
dest = mga_vid_base;
bespitch = (config.src_width + 31) & ~31;
for(h=0; h < config.src_height; h++)
{
memcpy(dest, y, config.src_width);
y += config.src_width;
dest += bespitch;
}
for(h=0; h < config.src_height/2; h++)
{
memcpy(dest, cb, config.src_width/2);
cb += config.src_width/2;
dest += bespitch/2;
}
for(h=0; h < config.src_height/2; h++)
{
memcpy(dest, cr, config.src_width/2);
cr += config.src_width/2;
dest += bespitch/2;
}
}
void write_frame(uint8_t *y,uint8_t *cr, uint8_t *cb)
{
if(is_g400)
write_frame_g400(y,cr,cb);
else
write_frame_g200(y,cr,cb);
}
void
draw_cool_pattern(void)
{
int i,x,y;
i = 0;
for (y=0; y<config.src_height; y++) {
for (x=0; x<config.src_width; x++) {
y_image[i++] = x*x/2 + y*y/2 - 128;
}
}
i = 0;
for (y=0; y<config.src_height/2; y++)
for (x=0; x<config.src_width/2; x++)
{
cr_image[i++] = x - 128;
}
i = 0;
for (y=0; y<config.src_height/2; y++)
for (x=0; x<config.src_width/2; x++)
{
cb_image[i++] = y - 128;
}
}
void
draw_color_blend(void)
{
int i,x,y;
i = 0;
for (y=0; y<config.src_height; y++) {
for (x=0; x<config.src_width; x++) {
y_image[i++] = 0;
}
}
i = 0;
for (y=0; y<config.src_height/2; y++)
for (x=0; x<config.src_width/2; x++)
{
cr_image[i++] = x - 128;
}
i = 0;
for (y=0; y<config.src_height/2; y++)
for (x=0; x<config.src_width/2; x++)
{
cb_image[i++] = y - 128;
}
}
int
main(void)
{
int f;
f = open("/dev/mga_vid",O_RDWR);
if(f == -1)
{
fprintf(stderr,"Couldn't open driver\n");
exit(1);
}
config.version = MGA_VID_VERSION;
config.src_width = SRC_IMAGE_WIDTH;
config.src_height= SRC_IMAGE_HEIGHT;
config.dest_width = SRC_IMAGE_WIDTH;
config.dest_height = SRC_IMAGE_HEIGHT;
config.x_org= 10;
config.y_org= 10;
config.colkey_on = 0;
config.format = MGA_VID_FORMAT_YV12;
config.frame_size=SRC_IMAGE_WIDTH*SRC_IMAGE_HEIGHT*2;
config.num_frames=1;
if (ioctl(f,MGA_VID_CONFIG,&config))
{
perror("Error in config ioctl");
}
if (config.card_type == MGA_G200)
{
printf("Testing MGA G200 Backend Scaler with %d MB of RAM\n", config.ram_size);
is_g400 = 0;
}
else
{
printf("Testing MGA G400 Backend Scaler with %d MB of RAM\n", config.ram_size);
is_g400 = 1;
}
ioctl(f,MGA_VID_ON,0);
mga_vid_base = (uint8_t*)mmap(0,256 * 4096,PROT_WRITE,MAP_SHARED,f,0);
printf("mga_vid_base = %8p\n",mga_vid_base);
//memset(y_image,80,256 * 128);
//memset(cr_image,80,256/2 * 20);
//memset(cb_image,80,256/2 * 20);
write_frame(y_image,cr_image,cb_image);
printf("(1) There should be a green square, offset by 10 pixels from\n"
" the upper left corner displayed\n");
sleep(3);
draw_cool_pattern();
write_frame(y_image,cr_image,cb_image);
printf("(2) There should be a cool mosaic like pattern now.\n");
sleep(3);
draw_color_blend();
write_frame(y_image,cr_image,cb_image);
printf("(3) There should be a color blend with black, red, purple, blue\n"
" corners (starting top left going CW)\n");
sleep(3);
ioctl(f,MGA_VID_OFF,0);
close(f);
return 0;
}
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