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mpv/libvo/vo_s3fb.c

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/* Copyright (C) Mark Sanderson, 2006, <mmp@kiora.ath.cx>.
* Released under the terms and conditions of the GPL.
*
* 30-Mar-2006 Modified from tdfxfb.c by Mark Zealey
*
* Hints and tricks:
* - Use -dr to get direct rendering
* - Use -vf yuy2 to get yuy2 rendering, *MUCH* faster than yv12
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <sys/io.h>
#include "config.h"
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#include "mp_msg.h"
#include "fastmemcpy.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "aspect.h"
#include "sub.h"
static vo_info_t info =
{
"S3 Virge over fbdev",
"s3fb",
"Mark Sanderson <mmp@kiora.ath.cx>",
""
};
LIBVO_EXTERN(s3fb)
typedef struct vga_type {
int cr38, cr39, cr53;
unsigned char *mmio;
} vga_t;
static vga_t *v = NULL;
static int fd = -1;
static struct fb_fix_screeninfo fb_finfo;
static struct fb_var_screeninfo fb_vinfo;
static uint32_t in_width, in_height, in_format, in_depth, in_s3_format,
screenwidth, screenheight, screendepth, screenstride,
vidwidth, vidheight, vidx, vidy, page, offset, sreg;
static char *inpage, *inpage0, *smem = NULL;
static void (*alpha_func)();
static void clear_screen();
/* streams registers */
#define PSTREAM_CONTROL_REG 0x8180
#define COL_CHROMA_KEY_CONTROL_REG 0x8184
#define SSTREAM_CONTROL_REG 0x8190
#define CHROMA_KEY_UPPER_BOUND_REG 0x8194
#define SSTREAM_STRETCH_REG 0x8198
#define BLEND_CONTROL_REG 0x81A0
#define PSTREAM_FBADDR0_REG 0x81C0
#define PSTREAM_FBADDR1_REG 0x81C4
#define PSTREAM_STRIDE_REG 0x81C8
#define DOUBLE_BUFFER_REG 0x81CC
#define SSTREAM_FBADDR0_REG 0x81D0
#define SSTREAM_FBADDR1_REG 0x81D4
#define SSTREAM_STRIDE_REG 0x81D8
#define OPAQUE_OVERLAY_CONTROL_REG 0x81DC
#define K1_VSCALE_REG 0x81E0
#define K2_VSCALE_REG 0x81E4
#define DDA_VERT_REG 0x81E8
#define STREAMS_FIFO_REG 0x81EC
#define PSTREAM_START_REG 0x81F0
#define PSTREAM_WINDOW_SIZE_REG 0x81F4
#define SSTREAM_START_REG 0x81F8
#define SSTREAM_WINDOW_SIZE_REG 0x81FC
#define S3_MEMBASE sreg
#define S3_NEWMMIO_REGBASE 0x1000000 /* 16MB */
#define S3_NEWMMIO_REGSIZE 0x10000 /* 64KB */
#define S3V_MMIO_REGSIZE 0x8000 /* 32KB */
#define S3_NEWMMIO_VGABASE (S3_NEWMMIO_REGBASE + 0x8000)
#define OUTREG(mmreg, value) *(unsigned int *)(&v->mmio[mmreg]) = value
int readcrtc(int reg) {
outb(reg, 0x3d4);
return inb(0x3d5);
}
void writecrtc(int reg, int value) {
outb(reg, 0x3d4);
outb(value, 0x3d5);
}
// enable S3 registers
int enable() {
int fd;
if (v)
return 1;
errno = 0;
v = (vga_t *)malloc(sizeof(vga_t));
if (v) {
if (ioperm(0x3d4, 2, 1) == 0) {
fd = open("/dev/mem", O_RDWR);
if (fd != -1) {
v->mmio = mmap(0, S3_NEWMMIO_REGSIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd,
S3_MEMBASE + S3_NEWMMIO_REGBASE);
close(fd);
if (v->mmio != MAP_FAILED) {
v->cr38 = readcrtc(0x38);
v->cr39 = readcrtc(0x39);
v->cr53 = readcrtc(0x53);
writecrtc(0x38, 0x48);
writecrtc(0x39, 0xa5);
writecrtc(0x53, 0x08);
return 1;
}
}
iopl(0);
}
free(v);
v = NULL;
}
}
void disable() {
if (v) {
writecrtc(0x53, v->cr53);
writecrtc(0x39, v->cr39);
writecrtc(0x38, v->cr38);
ioperm(0x3d4, 2, 0);
munmap(v->mmio, S3_NEWMMIO_REGSIZE);
free(v);
v = NULL;
}
}
int yuv_on(int format, int src_w, int src_h, int dst_x, int dst_y, int dst_w, int dst_h, int crop, int xres, int yres, int line_length, int offset) {
int tmp, pitch, start, src_wc, src_hc, bpp;
if (format == 0 || format == 7)
bpp = 4;
else if (format == 6)
bpp = 3;
else
bpp = 2;
src_wc = src_w - crop * 2;
src_hc = src_h - crop * 2;
pitch = src_w * bpp;
// video card memory layout:
// 0-n: visible screen memory, n = width * height * bytes per pixel
// n-m: scaler source memory, n is aligned to a page boundary
// m+: scaler source memory for multiple buffers
// offset is the first aligned byte after the screen memory, where the scaler input buffer is
tmp = (yres * line_length + 4095) & ~4095;
offset += tmp;
// start is the top left viewable scaler input pixel
start = offset + crop * pitch + crop * bpp;
OUTREG(COL_CHROMA_KEY_CONTROL_REG, 0x47000000);
OUTREG(CHROMA_KEY_UPPER_BOUND_REG, 0x0);
OUTREG(BLEND_CONTROL_REG, 0x00000020);
OUTREG(DOUBLE_BUFFER_REG, 0x0); /* Choose fbaddr0 as stream source. */
OUTREG(OPAQUE_OVERLAY_CONTROL_REG, 0x0);
OUTREG(PSTREAM_CONTROL_REG, 0x06000000);
OUTREG(PSTREAM_FBADDR0_REG, 0x0);
OUTREG(PSTREAM_FBADDR1_REG, 0x0);
OUTREG(PSTREAM_STRIDE_REG, line_length);
OUTREG(PSTREAM_START_REG, 0x00010001);
OUTREG(PSTREAM_WINDOW_SIZE_REG, 0x00010001);
//OUTREG(SSTREAM_WINDOW_SIZE_REG, ( ((xres-1) << 16) | yres) & 0x7ff07ff);
if (dst_w == src_w)
tmp = 0;
else
tmp = 2;
/* format 1=YCbCr-16 2=YUV-16 3=BGR15 4=YUV-16/32(mixed 2/4byte stride) 5=BGR16 6=BGR24 0,7=BGR32 */
/* The YUV format pixel has a range of value from 0 to 255, while the YCbCr format pixel values are in the range of 16 to 240. */
OUTREG(SSTREAM_CONTROL_REG, tmp << 28 | (format << 24) |
((((src_wc-1)<<1)-(dst_w-1)) & 0xfff));
OUTREG(SSTREAM_STRETCH_REG,
((src_wc - 1) & 0x7ff) | (((src_wc - dst_w-1) & 0x7ff) << 16));
OUTREG(SSTREAM_FBADDR0_REG, start & 0x3fffff );
OUTREG(SSTREAM_STRIDE_REG, pitch & 0xfff );
OUTREG(SSTREAM_START_REG, ((dst_x + 1) << 16) | (dst_y + 1));
OUTREG(SSTREAM_WINDOW_SIZE_REG, ( ((dst_w-1) << 16) | (dst_h ) ) & 0x7ff07ff);
OUTREG(K1_VSCALE_REG, src_hc - 1 );
OUTREG(K2_VSCALE_REG, (src_hc - dst_h) & 0x7ff );
/* 0xc000 = bw & vert interp */
/* 0x8000 = no bw save */
OUTREG(DDA_VERT_REG, (((~dst_h)-1) & 0xfff ) | 0xc000);
writecrtc(0x92, (((pitch + 7) / 8) >> 8) | 0x80);
writecrtc(0x93, (pitch + 7) / 8);
writecrtc(0x67, readcrtc(0x67) | 0x4);
return offset;
}
void yuv_off() {
writecrtc(0x67, readcrtc(0x67) & ~0xc);
memset(v->mmio + 0x8180, 0, 0x80);
OUTREG(0x81b8, 0x900);
OUTREG(0x81bc, 0x900);
OUTREG(0x81c8, 0x900);
OUTREG(0x81cc, 0x900);
OUTREG(0x81d8, 0x1);
OUTREG(0x81f8, 0x07ff07ff);
OUTREG(0x81fc, 0x00010001);
writecrtc(0x92, 0);
writecrtc(0x93, 0);
}
static int preinit(const char *arg)
{
char *name;
if(arg)
name = (char*)arg;
else if(!(name = getenv("FRAMEBUFFER")))
name = "/dev/fb0";
if((fd = open(name, O_RDWR)) == -1) {
mp_msg(MSGT_VO, MSGL_FATAL, "s3fb: can't open %s: %s\n", name, strerror(errno));
return -1;
}
if(ioctl(fd, FBIOGET_FSCREENINFO, &fb_finfo)) {
mp_msg(MSGT_VO, MSGL_FATAL, "s3fb: problem with FBITGET_FSCREENINFO ioctl: %s\n",
strerror(errno));
close(fd);
fd = -1;
return -1;
}
if(ioctl(fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
mp_msg(MSGT_VO, MSGL_FATAL, "s3fb: problem with FBITGET_VSCREENINFO ioctl: %s\n",
strerror(errno));
close(fd);
fd = -1;
return -1;
}
// Check the depth now as config() musn't fail
switch(fb_vinfo.bits_per_pixel) {
case 16:
case 24:
case 32:
break; // Ok
default:
mp_msg(MSGT_VO, MSGL_FATAL, "s3fb: %d bpp output is not supported\n", fb_vinfo.bits_per_pixel);
close(fd);
fd = -1;
return -1;
}
/* Open up a window to the hardware */
smem = mmap(0, fb_finfo.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
sreg = fb_finfo.smem_start;
if(smem == (void *)-1) {
mp_msg(MSGT_VO, MSGL_FATAL, "s3fb: Couldn't map memory areas: %s\n", strerror(errno));
smem = NULL;
close(fd);
fd = -1;
return -1;
}
if (!enable()) {
mp_msg(MSGT_VO, MSGL_FATAL, "s3fb: Couldn't map S3 registers: %s\n", strerror(errno));
close(fd);
fd = -1;
return -1;
}
return 0; // Success
}
/* And close our mess */
static void uninit(void)
{
if (inpage0) {
clear_screen();
yuv_off();
inpage0 = NULL;
}
if(smem) {
munmap(smem, fb_finfo.smem_len);
smem = NULL;
}
disable();
if(fd != -1) {
close(fd);
fd = -1;
}
}
static void clear_screen()
{
if (inpage0) {
int n;
memset(smem, 0, screenheight * screenstride);
if (in_format == IMGFMT_YUY2) {
unsigned short *ptr;
int i;
ptr = (unsigned short *)inpage0;
n = in_width * in_height;
if (vo_doublebuffering)
n *= 2;
for(i=0; i<n; i++)
*ptr++ = 0x8000;
} else {
n = in_depth * in_width * in_height;
if (vo_doublebuffering)
n *= 2;
memset(inpage0, 0, n);
}
}
}
/* Setup output screen dimensions etc */
static void setup_screen(uint32_t full)
{
int inpageoffset;
aspect(&vidwidth, &vidheight, full ? A_ZOOM : A_NOZOOM);
// center picture
vidx = (screenwidth - vidwidth) / 2;
vidy = (screenheight - vidheight) / 2;
geometry(&vidx, &vidy, &vidwidth, &vidheight, screenwidth, screenheight);
vo_fs = full;
inpageoffset = yuv_on(in_s3_format, in_width, in_height, vidx, vidy, vidwidth, vidheight, 0, screenwidth, screenheight, screenstride, 0);
inpage0 = smem + inpageoffset;
inpage = inpage0;
mp_msg(MSGT_VO, MSGL_INFO, "s3fb: output is at %dx%d +%dx%d\n", vidx, vidy, vidwidth, vidheight);
clear_screen();
}
static int config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height,
uint32_t flags, char *title, uint32_t format)
{
screenwidth = fb_vinfo.xres;
screenheight = fb_vinfo.yres;
screenstride = fb_finfo.line_length;
aspect_save_screenres(fb_vinfo.xres,fb_vinfo.yres);
in_width = width;
in_height = height;
in_format = format;
aspect_save_orig(width,height);
aspect_save_prescale(d_width,d_height);
/* Setup the screen for rendering to */
screendepth = fb_vinfo.bits_per_pixel / 8;
switch(in_format) {
case IMGFMT_YUY2:
in_depth = 2;
in_s3_format = 1;
alpha_func = vo_draw_alpha_yuy2;
break;
case IMGFMT_BGR15:
in_depth = 2;
in_s3_format = 3;
alpha_func = vo_draw_alpha_rgb16;
break;
case IMGFMT_BGR16:
in_depth = 2;
in_s3_format = 5;
alpha_func = vo_draw_alpha_rgb16;
break;
case IMGFMT_BGR24:
in_depth = 3;
in_s3_format = 6;
alpha_func = vo_draw_alpha_rgb24;
break;
case IMGFMT_BGR32:
in_depth = 4;
in_s3_format = 7;
alpha_func = vo_draw_alpha_rgb32;
break;
default:
mp_msg(MSGT_VO, MSGL_FATAL, "s3fb: Eik! Something's wrong with control().\n");
return -1;
}
offset = in_width * in_depth * in_height;
if (vo_doublebuffering)
page = offset;
else
page = 0;
if(screenheight * screenstride + page + offset > fb_finfo.smem_len) {
mp_msg(MSGT_VO, MSGL_FATAL, "s3fb: Not enough video memory to play this movie. Try at a lower resolution\n");
return -1;
}
setup_screen(flags & VOFLAG_FULLSCREEN);
if (vo_doublebuffering)
inpage = inpage0 + page;
mp_msg(MSGT_VO, MSGL_INFO, "s3fb: screen is %dx%d at %d bpp, in is %dx%d at %d bpp, norm is %dx%d\n",
screenwidth, screenheight, screendepth * 8,
in_width, in_height, in_depth * 8,
d_width, d_height);
return 0;
}
static void draw_alpha(int x, int y, int w, int h, unsigned char *src,
unsigned char *srca, int stride)
{
char *dst = inpage + (y * in_width + x) * in_depth;
alpha_func(w, h, src, srca, stride, dst, in_width * in_depth);
}
static void draw_osd(void)
{
if (!vo_doublebuffering)
vo_draw_text(in_width, in_height, draw_alpha);
}
/* Render onto the screen */
static void flip_page(void)
{
if(vo_doublebuffering) {
vo_draw_text(in_width, in_height, draw_alpha);
yuv_on(in_s3_format, in_width, in_height, vidx, vidy, vidwidth, vidheight, 0, screenwidth, screenheight, screenstride, page);
page ^= offset;
inpage = inpage0 + page;
}
}
static int draw_frame(uint8_t *src[])
{
mem2agpcpy(inpage, src[0], in_width * in_depth * in_height);
return 0;
}
static int draw_slice(uint8_t *i[], int s[], int w, int h, int x, int y)
{
return 1;
}
/* Attempt to start doing DR */
static uint32_t get_image(mp_image_t *mpi)
{
if(mpi->flags & MP_IMGFLAG_READABLE)
return VO_FALSE;
if(mpi->type == MP_IMGTYPE_STATIC && vo_doublebuffering)
return VO_FALSE;
if(mpi->type > MP_IMGTYPE_TEMP)
return VO_FALSE; // TODO ??
switch(in_format) {
case IMGFMT_BGR15:
case IMGFMT_BGR16:
case IMGFMT_BGR24:
case IMGFMT_BGR32:
case IMGFMT_YUY2:
mpi->planes[0] = inpage;
mpi->stride[0] = in_width * in_depth;
break;
default:
return VO_FALSE;
}
mpi->width = in_width;
mpi->flags |= MP_IMGFLAG_DIRECT;
return VO_TRUE;
}
static int control(uint32_t request, void *data, ...)
{
switch(request) {
case VOCTRL_GET_IMAGE:
return get_image(data);
case VOCTRL_QUERY_FORMAT:
switch(*((uint32_t*)data)) {
case IMGFMT_BGR15:
case IMGFMT_BGR16:
case IMGFMT_BGR24:
case IMGFMT_BGR32:
case IMGFMT_YUY2:
return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW |
VFCAP_OSD | VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN;
}
return 0; /* Not supported */
case VOCTRL_FULLSCREEN:
setup_screen(!vo_fs);
return 0;
}
return VO_NOTIMPL;
}
/* Dummy funcs */
static void check_events(void) {}
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