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#include "fastmemcpy.h"
// mga_vid drawing functions
static int mga_next_frame=0;
static mga_vid_config_t mga_vid_config;
static uint8_t *vid_data, *frames[4];
static int f;
static void draw_alpha(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
int x,y;
uint32_t bespitch = (mga_vid_config.src_width + 31) & ~31;
switch(mga_vid_config.format){
case MGA_VID_FORMAT_YV12:
case MGA_VID_FORMAT_IYUV:
case MGA_VID_FORMAT_I420:
vo_draw_alpha_yv12(w,h,src,srca,stride,vid_data+bespitch*y0+x0,bespitch);
break;
case MGA_VID_FORMAT_YUY2:
vo_draw_alpha_yuy2(w,h,src,srca,stride,vid_data+2*(bespitch*y0+x0),2*bespitch);
break;
case MGA_VID_FORMAT_UYVY:
vo_draw_alpha_yuy2(w,h,src,srca,stride,vid_data+2*(bespitch*y0+x0)+1,2*bespitch);
break;
}
}
//static void
//write_slice_g200(uint8_t *y,uint8_t *cr, uint8_t *cb,uint32_t slice_num)
static void
draw_slice_g200(uint8_t *image[], int stride[], int width,int height,int x,int y)
{
uint8_t *src;
uint8_t *src2;
uint8_t *dest;
uint32_t bespitch,h,w;
bespitch = (mga_vid_config.src_width + 31) & ~31;
dest = vid_data + bespitch*y + x;
src = image[0];
for(h=0; h < height; h++)
{
memcpy(dest, src, width);
src += stride[0];
dest += bespitch;
}
width/=2;height/=2;x/=2;y/=2;
dest = vid_data + bespitch*mga_vid_config.src_height + bespitch*y + 2*x;
src = image[1];
src2 = image[2];
for(h=0; h < height; h++)
{
for(w=0; w < width; w++)
{
dest[2*w+0] = src[w];
dest[2*w+1] = src2[w];
}
dest += bespitch;
src += stride[1];
src2+= stride[2];
}
}
static void
draw_slice_g400(uint8_t *image[], int stride[], int w,int h,int x,int y)
{
uint8_t *src;
uint8_t *dest;
uint32_t bespitch,bespitch2;
int i;
bespitch = (mga_vid_config.src_width + 31) & ~31;
bespitch2 = bespitch/2;
dest = vid_data + bespitch * y + x;
src = image[0];
for(i=0;i<h;i++){
memcpy(dest,src,w);
src+=stride[0];
dest += bespitch;
}
w/=2;h/=2;x/=2;y/=2;
dest = vid_data + bespitch*mga_vid_config.src_height + bespitch2 * y + x;
src = image[1];
for(i=0;i<h;i++){
memcpy(dest,src,w);
src+=stride[1];
dest += bespitch2;
}
dest = vid_data + bespitch*mga_vid_config.src_height
+ bespitch*mga_vid_config.src_height / 4
+ bespitch2 * y + x;
src = image[2];
for(i=0;i<h;i++){
memcpy(dest,src,w);
src+=stride[2];
dest += bespitch2;
}
}
static uint32_t
draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
{
if (mga_vid_config.card_type == MGA_G200)
draw_slice_g200(src,stride,w,h,x,y);
else
draw_slice_g400(src,stride,w,h,x,y);
return 0;
}
static void
vo_mga_flip_page(void)
{
// printf("-- flip to %d --\n",mga_next_frame);
#if 1
ioctl(f,MGA_VID_FSEL,&mga_next_frame);
mga_next_frame=(mga_next_frame+1)%mga_vid_config.num_frames;
vid_data=frames[mga_next_frame];
#endif
}
static void
write_frame_yuy2(uint8_t *y)
{
uint8_t *dest;
uint32_t bespitch,h;
int len=2*mga_vid_config.src_width;
dest = vid_data;
bespitch = (mga_vid_config.src_width + 31) & ~31;
// y+=2*mga_vid_config.src_width*mga_vid_config.src_height;
for(h=0; h < mga_vid_config.src_height; h++)
{
// y -= 2*mga_vid_config.src_width;
memcpy(dest, y, len);
y += len;
dest += 2*bespitch;
}
}
static uint32_t
draw_frame(uint8_t *src[])
{
switch(mga_vid_config.format){
case MGA_VID_FORMAT_YUY2:
write_frame_yuy2(src[0]);break;
case MGA_VID_FORMAT_UYVY:
write_frame_yuy2(src[0]);break;
}
return 0;
}
static uint32_t
query_format(uint32_t format)
{
switch(format){
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YUY2:
case IMGFMT_UYVY:
// case IMGFMT_RGB|24:
// case IMGFMT_BGR|24:
return 1;
}
return 0;
}
static int mga_init(){
char *frame_mem;
mga_vid_config.num_frames=4;
mga_vid_config.version=MGA_VID_VERSION;
if (ioctl(f,MGA_VID_CONFIG,&mga_vid_config))
{
perror("Error in mga_vid_config ioctl()");
printf("Your mga_vid driver version is incompatible with this MPlayer version!\n");
return -1;
}
ioctl(f,MGA_VID_ON,0);
frames[0] = (char*)mmap(0,mga_vid_config.frame_size*mga_vid_config.num_frames,PROT_WRITE,MAP_SHARED,f,0);
frames[1] = frames[0] + 1*mga_vid_config.frame_size;
frames[2] = frames[0] + 2*mga_vid_config.frame_size;
frames[3] = frames[0] + 3*mga_vid_config.frame_size;
mga_next_frame = 0;
vid_data = frames[mga_next_frame];
//clear the buffer
memset(frames[0],0x80,mga_vid_config.frame_size*mga_vid_config.num_frames);
return 0;
}
static int mga_uninit(){
ioctl( f,MGA_VID_OFF,0 );
munmap(frames[0],mga_vid_config.frame_size*mga_vid_config.num_frames);
close(f);
}
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