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7750844519
mpv/libvo/vo_svga.c
arpi 7750844519 This patch should fix the display problem with 4bpp and 8bpp modes. 
The problem was that the new drawing method assumes a linear
framebuffer, which is not available in those modes. This can be worked
around by using the old drawing method, which is what this patch does.
The old method can be forced, by using the "old" driver option.
This patch also enables linear addressing, since it improves write speed
to video memory considerably. The mentioned problem:
"it is not compatable with vga_draw* for some cards"
Is a bug in svgalib, which I think should be fixed in recent svgalib
versions. If someone sees this problem, please report to svgalib
maintainer (that's me).
patch by Matan Ziv-Av. matan@svgalib.org


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9047 b3059339-0415-0410-9bf9-f77b7e298cf2
2003-01-20 21:33:11 +00:00

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/*
Video driver for SVGAlib
by Zoltan Mark Vician <se7en@sch.bme.hu>
Code started: Mon Apr 1 23:25:47 2001
Some changes by Matan Ziv-Av <matan@svgalib.org>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vga.h>
#include <limits.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#ifdef CONFIG_VIDIX
#include "vosub_vidix.h"
#endif
#include "sub.h"
#include "../postproc/rgb2rgb.h"
#include "../mp_msg.h"
//#include "../mp_image.h"
extern int vo_directrendering;
extern int vo_dbpp;
extern int verbose;
static uint32_t query_format(uint32_t format);
static int checksupportedmodes();
static void putbox(int x, int y, int w, int h, uint8_t *buf,int prog);
static void fillbox(int x, int y, int w, int h, uint32_t c);
static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
unsigned char *srca, int stride);
static uint32_t get_image(mp_image_t *mpi);
static uint8_t *yuvbuf = NULL, *bppbuf = NULL;
static uint8_t *GRAPH_MEM;
static int BYTESPERPIXEL, WIDTH, HEIGHT, LINEWIDTH;
static int frame, maxframes, oldmethod=0;
static int directrender;
static int force_vm=0;
static int squarepix=0;
static uint32_t pformat;
static uint32_t orig_w, orig_h, maxw, maxh; // Width, height
static uint8_t buf0[8192];
static uint8_t *buffer;
typedef struct vga_modelist_s {
uint16_t modenum;
vga_modeinfo modeinfo;
struct vga_modelist_s *next;
} vga_modelist_t;
vga_modelist_t *modelist = NULL;
static uint8_t bpp;
static uint8_t bpp_conv = 0;
static uint32_t pformat;
#define BPP_15 1
#define BPP_16 2
#define BPP_24 4
#define BPP_32 8
#define BPP_8 16
#define BPP_4 32
#define BPP_1 64
static uint8_t bpp_avail = 0;
static uint8_t checked = 0;
static uint32_t x_pos, y_pos;
static vo_info_t info = {
"SVGAlib",
"svga",
"Zoltan Mark Vician <se7en@sch.bme.hu>",
""
};
#ifdef CONFIG_VIDIX
static char vidix_name[32] = "";
#endif
LIBVO_EXTERN(svga)
static uint32_t preinit(const char *arg)
{
int i;
for(i=0;i<8192;i++) buf0[i]=0;
if(vo_directrendering) {
maxframes=0;
} else {
maxframes=1;
}
if(arg)while(*arg) {
if(!strncmp(arg,"old",3)) {
oldmethod=1;
arg+=3;
if( *arg == ':' ) arg++;
}
#ifdef CONFIG_VIDIX
if(memcmp(arg,"vidix",5)==0) {
int i;
i=6;
while(arg[i] && arg[i]!=':') i++;
strncpy(vidix_name, arg+6, i-6);
vidix_name[i-5]=0;
if(arg[i]==':')i++;
arg+=i;
vidix_preinit(vidix_name, &video_out_svga);
}
#endif
if(!strncmp(arg,"sq",2)) {
squarepix=1;
arg+=2;
if( *arg == ':' ) arg++;
}
if(*arg) {
int i;
char s[64];
printf("arg is %s\n",arg);
i=0;
while(arg[i] && arg[i]!=':')i++;
strncpy(s, arg, i);
s[i]=0;
arg+=i;
if(*arg==':')arg++;
printf("i=%i new arg is %s\n",i, arg);
i=vga_getmodenumber(s);
if(i>0) {
force_vm = i;
if(verbose)printf("vo_svga: Forcing mode %i\n",force_vm);
}
}
}
if (!checked) {
if (checksupportedmodes()) // Looking for available video modes
return(1);
}
return 0;
}
static uint32_t control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
case VOCTRL_GET_IMAGE:
return get_image(data);
}
return VO_NOTIMPL;
}
static uint32_t config(uint32_t width, uint32_t height, uint32_t d_width,
uint32_t d_height, uint32_t flags, char *title,
uint32_t format) {
uint32_t req_w = (d_width > 0 ? d_width : width);
uint32_t req_h = (d_height > 0 ? d_height : height);
uint16_t vid_mode = 0;
uint8_t res_widescr, vid_widescr = (((req_w*1.0)/req_h) > (4.0/3)) ? 1 : 0;
uint16_t buf_w = USHRT_MAX, buf_h = USHRT_MAX;
vga_modelist_t *list = modelist;
if(verbose)
printf("vo_svga: config(%i, %i, %i, %i, %08x, %s, %08x)\n", width, height,
d_width, d_height, flags, title, format);
bpp_avail = 0;
while (list != NULL) {
if ((list->modeinfo.width >= req_w) && (list->modeinfo.height >= req_h)) {
switch (list->modeinfo.colors) {
case 32768: bpp_avail |= BPP_15; break;
case 65536: bpp_avail |= BPP_16; break;
case 256 : bpp_avail |= BPP_8; break;
case 16 : bpp_avail |= BPP_4; break;
case 2 : bpp_avail |= BPP_1; break;
}
switch (list->modeinfo.bytesperpixel) {
case 3: bpp_avail |= BPP_24; break;
case 4: bpp_avail |= BPP_32; break;
}
}
list = list->next;
}
pformat = format;
// bpp check
bpp_conv = 0;
if (!vo_dbpp) {
if (!IMGFMT_IS_RGB(format) && !IMGFMT_IS_BGR(format)) bpp = 32;
else bpp = format & 255;
if (verbose)
printf("vo_svga: vo_dbpp == 0, bpp: %d\n",bpp);
switch (bpp) {
case 32: if (!(bpp_avail & BPP_32)) {
printf("vo_svga: Haven't found video mode which fit to: %dx%d %dbpp\n",req_w,req_h,bpp);
printf("vo_svga: Maybe you should try -bpp\n");
return(1);
}
break;
case 24: if (!(bpp_avail & BPP_24)) {
if (!(bpp_avail & BPP_32)) {
printf("vo_svga: Haven't found video mode which fit to: %dx%d %dbpp\n",req_w,req_h,bpp);
printf("vo_svga: Maybe you should try -bpp\n");
return(1);
} else {
bpp = 32;
bpp_conv = 1;
printf("vo_svga: BPP conversion 24->32\n");
}
}
break;
case 16: if (!(bpp_avail & BPP_16)) {
printf("vo_svga: Haven't found video mode which fit to: %dx%d %dbpp\n",req_w,req_h,bpp);
printf("vo_svga: Maybe you should try -bpp\n");
return(1);
}
break;
case 15: if (!(bpp_avail & BPP_15)) {
if (!(bpp_avail & BPP_16)) {
printf("vo_svga: Haven't found video mode which fit to: %dx%d %dbpp\n",req_w,req_h,bpp);
printf("vo_svga: Maybe you should try -bpp\n");
return(1);
} else {
bpp = 16;
bpp_conv = 1;
printf("vo_svga: BPP conversion 15->16\n");
}
}
break;
case 8: if (!(bpp_avail & BPP_8)) {
printf("vo_svga: Haven't found video mode which fit to: %dx%d %dbpp\n",req_w,req_h,bpp);
printf("vo_svga: Maybe you should try -bpp\n");
return(1);
}
break;
case 4: if (!(bpp_avail & BPP_4)) {
printf("vo_svga: Haven't found video mode which fit to: %dx%d %dbpp\n",req_w,req_h,bpp);
printf("vo_svga: Maybe you should try -bpp\n");
return(1);
}
break;
case 1: if (!(bpp_avail & BPP_1)) {
printf("vo_svga: Haven't found video mode which fit to: %dx%d %dbpp\n",req_w,req_h,bpp);
printf("vo_svga: Maybe you should try -bpp\n");
return(1);
}
break;
}
} else {
bpp = vo_dbpp;
if (verbose)
printf("vo_svga: vo_dbpp == %d\n",bpp);
switch (bpp) {
case 32: if (!(bpp_avail & BPP_32)) {
printf("vo_svga: %dbpp not supported in %dx%d (or larger resoltuion) by HW or SVGAlib\n",bpp,req_w,req_h);
return(1);
}
break;
case 24: if (!(bpp_avail & BPP_24)) {
printf("vo_svga: %dbpp not supported in %dx%d (or larger resoltuion) by HW or SVGAlib\n",bpp,req_w,req_h);
return(1);
}
break;
case 16: if (!(bpp_avail & BPP_16)) {
printf("vo_svga: %dbpp not supported in %dx%d (or larger resoltuion) by HW or SVGAlib\n",bpp,req_w,req_h);
return(1);
}
break;
case 15: if (!(bpp_avail & BPP_15)) {
printf("vo_svga: %dbpp not supported in %dx%d (or larger resoltuion) by HW or SVGAlib\n",bpp,req_w,req_h);
return(1);
}
break;
case 8: if (!(bpp_avail & BPP_8)) {
printf("vo_svga: %dbpp not supported in %dx%d (or larger resoltuion) by HW or SVGAlib\n",bpp,req_w,req_h);
return(1);
}
break;
case 4: if (!(bpp_avail & BPP_4)) {
printf("vo_svga: %dbpp not supported in %dx%d (or larger resoltuion) by HW or SVGAlib\n",bpp,req_w,req_h);
return(1);
}
break;
case 1: if (!(bpp_avail & BPP_1)) {
printf("vo_svga: %dbpp not supported in %dx%d (or larger resoltuion) by HW or SVGAlib\n",bpp,req_w,req_h);
return(1);
}
break;
}
}
list = modelist;
if (verbose) {
printf("vo_svga: Looking for the best resolution...\n");
printf("vo_svga: req_w: %d, req_h: %d, bpp: %d\n",req_w,req_h,bpp);
}
while (list != NULL) {
if ((list->modeinfo.width >= req_w) && (list->modeinfo.height >= req_h)) {
if (verbose) {
switch (list->modeinfo.colors) {
case 2 : printf("vo_svga: vid_mode: %d, %dx%d 1bpp\n",
list->modenum,list->modeinfo.width,list->modeinfo.height);
break;
case 16 : printf("vo_svga: vid_mode: %d, %dx%d 4bpp\n",
list->modenum,list->modeinfo.width,list->modeinfo.height);
break;
case 256 : printf("vo_svga: vid_mode: %d, %dx%d 8bpp\n",
list->modenum,list->modeinfo.width,list->modeinfo.height);
break;
case 32768: printf("vo_svga: vid_mode: %d, %dx%d 15bpp\n",
list->modenum,list->modeinfo.width,list->modeinfo.height);
break;
case 65536: printf("vo_svga: vid_mode: %d, %dx%d 16bpp\n",
list->modenum,list->modeinfo.width,list->modeinfo.height);
break;
}
switch (list->modeinfo.bytesperpixel) {
case 3: printf("vo_svga: vid_mode: %d, %dx%d 24bpp\n",
list->modenum,list->modeinfo.width,list->modeinfo.height);
break;
case 4: printf("vo_svga: vid_mode: %d, %dx%d 32bpp\n",
list->modenum,list->modeinfo.width,list->modeinfo.height);
break;
}
}
switch (bpp) {
case 32: if (list->modeinfo.bytesperpixel == 4)
if ((list->modeinfo.width < buf_w) || (list->modeinfo.height < buf_h)) {
vid_mode = list->modenum;
buf_w = list->modeinfo.width;
buf_h = list->modeinfo.height;
res_widescr = (((buf_w*1.0)/buf_h) > (4.0/3)) ? 1 : 0;
}
break;
case 24: if (list->modeinfo.bytesperpixel == 3)
if ((list->modeinfo.width < buf_w) || (list->modeinfo.height < buf_h)) {
vid_mode = list->modenum;
buf_w = list->modeinfo.width;
buf_h = list->modeinfo.height;
res_widescr = (((buf_w*1.0)/buf_h) > (4.0/3)) ? 1 : 0;
}
break;
case 16: if (list->modeinfo.colors == 65536)
if ((list->modeinfo.width < buf_w) || (list->modeinfo.height < buf_h)) {
vid_mode = list->modenum;
buf_w = list->modeinfo.width;
buf_h = list->modeinfo.height;
res_widescr = (((buf_w*1.0)/buf_h) > (4.0/3)) ? 1 : 0;
}
break;
case 15: if (list->modeinfo.colors == 32768)
if ((list->modeinfo.width < buf_w) || (list->modeinfo.height < buf_h)) {
vid_mode = list->modenum;
buf_w = list->modeinfo.width;
buf_h = list->modeinfo.height;
res_widescr = (((buf_w*1.0)/buf_h) > (4.0/3)) ? 1 : 0;
}
break;
case 8: if (list->modeinfo.colors == 256)
if ((list->modeinfo.width < buf_w) || (list->modeinfo.height < buf_h)) {
vid_mode = list->modenum;
buf_w = list->modeinfo.width;
buf_h = list->modeinfo.height;
res_widescr = (((buf_w*1.0)/buf_h) > (4.0/3)) ? 1 : 0;
}
break;
case 4: if (list->modeinfo.colors ==16)
if ((list->modeinfo.width < buf_w) || (list->modeinfo.height < buf_h)) {
vid_mode = list->modenum;
buf_w = list->modeinfo.width;
buf_h = list->modeinfo.height;
res_widescr = (((buf_w*1.0)/buf_h) > (4.0/3)) ? 1 : 0;
}
break;
case 1: if (list->modeinfo.colors == 2)
if ((list->modeinfo.width < buf_w) || (list->modeinfo.height < buf_h)) {
vid_mode = list->modenum;
buf_w = list->modeinfo.width;
buf_h = list->modeinfo.height;
res_widescr = (((buf_w*1.0)/buf_h) > (4.0/3)) ? 1 : 0;
}
break;
}
}
list = list->next;
}
if(force_vm) {
list=modelist;
while(list) {
if(list->modenum == force_vm) {
buf_w = list->modeinfo.width;
buf_h = list->modeinfo.height;
res_widescr = (((buf_w*1.0)/buf_h) > (4.0/3)) ? 1 : 0;
switch(list->modeinfo.colors) {
case 2:
bpp=1;
bpp_conv=0;
break;
case 16:
bpp=4;
bpp_conv=0;
break;
case 256:
bpp=8;
bpp_conv=0;
break;
case 32768:
bpp=16;
bpp_conv=1;
break;
case 65536:
bpp=16;
bpp_conv=0;
break;
case (1<<24):
if(list->modeinfo.bytesperpixel == 3) {
bpp=32;
bpp_conv=1;
} else {
bpp=32;
bpp_conv=0;
}
break;
}
vid_mode=force_vm;
list=NULL;
} else list=list->next;
}
}
if (verbose)
printf("vo_svga: vid_mode: %d\n",vid_mode);
if (vga_setmode(vid_mode) == -1) {
printf("vo_svga: vga_setmode(%d) failed.\n",vid_mode);
uninit();
return(1); // error
}
if(vid_mode<10 || vid_mode==145) {
oldmethod=1;
}
/* set 332 palette for 8 bpp */
if(bpp==8){
int i;
for(i=0; i<256; i++)
vga_setpalette(i, ((i>>5)&7)*9, ((i>>2)&7)*9, (i&3)*21);
}
/* set 121 palette for 4 bpp */
else if(bpp==4){
int i;
for(i=0; i<16; i++)
vga_setpalette(i, ((i>>3)&1)*63, ((i>>1)&3)*21, (i&1)*63);
}
WIDTH=vga_getxdim();
HEIGHT=vga_getydim();
BYTESPERPIXEL=(bpp+4)>>3;
LINEWIDTH=vga_getmodeinfo(vid_mode)->linewidth;
if(oldmethod && (bpp==8 || bpp==4)) LINEWIDTH*=8;
if(!oldmethod || (bpp>8))vga_setlinearaddressing();
if(oldmethod) {
buffer=malloc(HEIGHT*LINEWIDTH);
maxframes=0;
} else if ((vga_getmodeinfo(vid_mode)->flags&IS_LINEAR)) {
directrender=1;
if(verbose) printf("vo_svga: Using direct rendering to linear video ram.\n");
}
vga_claimvideomemory((maxframes+1)*HEIGHT*LINEWIDTH);
GRAPH_MEM=vga_getgraphmem();
frame=0;
fillbox(0,0,WIDTH,HEIGHT*(maxframes+1),0);
orig_w = width;
orig_h = height;
maxw = req_w;
maxh = req_h;
if (bpp_conv) {
bppbuf = malloc(maxw * maxh * BYTESPERPIXEL);
if (bppbuf == NULL) {
printf("vo_svga: bppbuf -> Not enough memory for buffering!\n");
uninit();
return (1);
}
}
#ifdef CONFIG_VIDIX
if(!vidix_name[0]){
#endif
maxw = width; /* No scaling */
maxh = height;
#ifdef CONFIG_VIDIX
}
#endif
if (pformat == IMGFMT_YV12) {
yuv2rgb_init(bpp, MODE_RGB);
}
x_pos = (WIDTH - maxw) / 2;
y_pos = (HEIGHT - maxh) / 2;
#ifdef CONFIG_VIDIX
if(vidix_name[0]){
vidix_init(width, height, x_pos, y_pos, maxw, maxh, format, bpp,
WIDTH, HEIGHT);
printf("vo_svga: Using VIDIX. w=%i h=%i mw=%i mh=%i\n",width,height,maxw,maxh);
vidix_start();
}
#endif
if(bpp==1)
yuvbuf = malloc((maxw+7)/8 * maxh);
else
yuvbuf = malloc(maxw * maxh * BYTESPERPIXEL);
if (yuvbuf == NULL) {
printf("vo_svga: yuvbuf -> Not enough memory for buffering!\n");
uninit();
return (1);
}
printf("vo_svga: SVGAlib resolution: %dx%d %dbpp - ", WIDTH, HEIGHT, bpp);
if (maxw != orig_w || maxh != orig_h) printf("Video scaled to: %dx%d\n",maxw,maxh);
else printf("No video scaling\n");
vga_setdisplaystart(0);
return (0);
}
static uint32_t draw_frame(uint8_t *src[]) {
uint8_t *s=src[0];
if (bpp_conv) {
switch(bpp) {
case 32:
rgb24to32(src[0],bppbuf,maxw * maxh * 3);
break;
case 16:
rgb15to16(src[0],bppbuf,maxw * maxh * 2);
break;
}
s = bppbuf;
}
putbox(x_pos, y_pos, maxw, maxh, s, 1);
return (0);
}
static uint32_t draw_slice(uint8_t *image[], int stride[],
int w, int h, int x, int y) {
uint8_t *src = yuvbuf;
uint32_t sw, sh;
if(directrender) {
yuv2rgb(GRAPH_MEM+(frame*HEIGHT+y+y_pos)*LINEWIDTH+(x+x_pos)*BYTESPERPIXEL,
image[0], image[1], image[2], w, h, LINEWIDTH, stride[0], stride[1]);
} else {
if(bpp==1)
yuv2rgb(yuvbuf, image[0], image[1], image[2], w, h, (orig_w+7)/8, stride[0], stride[1]);
else
yuv2rgb(yuvbuf, image[0], image[1], image[2], w, h, orig_w * BYTESPERPIXEL,
stride[0], stride[1]);
putbox(x + x_pos, y + y_pos, w, h, src, 1);
}
return (0);
}
static void draw_osd(void)
{
if(oldmethod) {
if (y_pos) {
fillbox(0, 0, WIDTH, y_pos, 0);
fillbox(0, HEIGHT - y_pos, WIDTH, y_pos, 0);
if (x_pos) {
int hmy=HEIGHT - (y_pos<<1);
fillbox(0, y_pos, x_pos, hmy, 0);
fillbox(WIDTH - x_pos, y_pos, x_pos, hmy, 0);
}
} else if (x_pos) {
fillbox(0, y_pos, x_pos, HEIGHT, 0);
fillbox(WIDTH - x_pos, y_pos, x_pos, HEIGHT, 0);
}
vo_draw_text(WIDTH, HEIGHT, draw_alpha);
} else
vo_draw_text(maxw, maxh, draw_alpha);
}
static void flip_page(void) {
if(oldmethod) {
int i;
uint8_t *b;
b=buffer;
for(i=0;i<HEIGHT;i++){
vga_drawscansegment(b,0,i,LINEWIDTH);
b+=LINEWIDTH;
}
} else {
if(maxframes) {
vga_setdisplaystart(frame*HEIGHT*LINEWIDTH);
frame++;
if(frame>maxframes)frame=0;
}
}
}
static void check_events(void) {
}
static void uninit(void) {
vga_modelist_t *list = modelist;
#ifdef CONFIG_VIDIX
if(vidix_name[0])vidix_term();
#endif
vga_setmode(TEXT);
if (bppbuf != NULL)
free(bppbuf);
bppbuf=NULL;
if (yuvbuf != NULL)
free(yuvbuf);
while (modelist != NULL) {
list=modelist;
modelist=modelist->next;
free(list);
}
checked = 0;
}
/* --------------------------------------------------------------------- */
static uint32_t add_mode(uint16_t mode, vga_modeinfo minfo) {
vga_modelist_t *list;
if(squarepix && (minfo.height*4 != minfo.width*3)) return 0;
if (modelist == NULL) {
modelist = (vga_modelist_t *) malloc(sizeof(vga_modelist_t));
if (modelist == NULL) {
printf("vo_svga: add_mode() failed. Not enough memory for modelist.");
return(1); // error
}
modelist->modenum = mode;
modelist->modeinfo = minfo;
modelist->next = NULL;
} else {
list = modelist;
while (list->next != NULL)
list = list->next;
list->next = (vga_modelist_t *) malloc(sizeof(vga_modelist_t));
if (list->next == NULL) {
printf("vo_svga: add_mode() failed. Not enough memory for modelist.");
return(1); // error
}
list = list->next;
list->modenum = mode;
list->modeinfo = minfo;
list->next = NULL;
}
return (0);
}
static int checksupportedmodes() {
uint16_t i, max;
vga_modeinfo *minfo;
checked = 1;
getch2_disable();
vga_init();
vga_disabledriverreport();
max = vga_lastmodenumber();
if (verbose >= 2)
printf("vo_svga: Max mode : %i\n",max);
for (i = 1; i <= max; i++)
if (vga_hasmode(i) > 0) {
minfo = vga_getmodeinfo(i);
switch (minfo->colors) {
case 2 : bpp_avail |= BPP_1 ; break;
case 16 : bpp_avail |= BPP_4 ; break;
case 256 : bpp_avail |= BPP_8 ; break;
case 32768: bpp_avail |= BPP_15; break;
case 65536: bpp_avail |= BPP_16; break;
}
switch (minfo->bytesperpixel) {
case 3: bpp_avail |= BPP_24; break;
case 4: bpp_avail |= BPP_32; break;
}
if (verbose >= 2)
printf("vo_svga: Mode found: %s\n",vga_getmodename(i));
if (add_mode(i, *minfo))
return(1);
}
return(0);
}
static uint32_t query_format(uint32_t format) {
uint32_t res = 0;
if (!checked) {
if (checksupportedmodes()) // Looking for available video modes
return(0);
}
// if (vo_dbpp) => There is NO conversion!!!
if (vo_dbpp) {
if (format == IMGFMT_YV12) return (1);
switch (vo_dbpp) {
case 32: if ((format == IMGFMT_RGB32) || (format == IMGFMT_BGR32))
return ((bpp_avail & BPP_32) ? 1 : 0);
break;
case 24: if ((format == IMGFMT_RGB24) || (format == IMGFMT_BGR24))
return ((bpp_avail & BPP_24) ? 1 : 0);
break;
case 16: if ((format == IMGFMT_RGB16) || (format == IMGFMT_BGR16))
return ((bpp_avail & BPP_16) ? 1 : 0);
break;
case 15: if ((format == IMGFMT_RGB15) || (format == IMGFMT_BGR15))
return ((bpp_avail & BPP_15) ? 1 : 0);
break;
case 8 : if ((format == IMGFMT_RGB8 ) || (format == IMGFMT_BGR8))
return ((bpp_avail & BPP_8 ) ? 1 : 0);
break;
case 4 : if ((format == IMGFMT_RGB4 ) || (format == IMGFMT_BGR4))
return ((bpp_avail & BPP_4 ) ? 1 : 0);
break;
case 1 : if ((format == IMGFMT_RGB1 ) || (format == IMGFMT_BGR1))
return ((bpp_avail & BPP_1 ) ? 1 : 0);
break;
}
} else {
switch (format) {
case IMGFMT_RGB32:
case IMGFMT_BGR32: return ((bpp_avail & BPP_32) ? 1 : 0); break;
case IMGFMT_RGB24:
case IMGFMT_BGR24: {
res = (bpp_avail & BPP_24) ? 1 : 0;
if (!res)
res = (bpp_avail & BPP_32) ? 1 : 0;
return (res);
} break;
case IMGFMT_RGB16:
case IMGFMT_BGR16: return ((bpp_avail & BPP_16) ? 1 : 0); break;
case IMGFMT_RGB15:
case IMGFMT_BGR15: {
res = (bpp_avail & BPP_15) ? 1 : 0;
if (!res)
res = (bpp_avail & BPP_16) ? 1 : 0;
return (res);
} break;
case IMGFMT_YV12: return (1); break;
}
}
return (0);
}
static void putbox(int x, int y, int w, int h, uint8_t *buf, int prog) {
int base, add, wid;
if(bpp==1)
wid=(w+7)/8;
else
wid=w*BYTESPERPIXEL;
if(oldmethod) {
add=wid*prog;
while( (h--) > 0 ) {
if(bpp==1)
memcpy(buffer+(x+7)/8+(y++)*LINEWIDTH, buf, wid);
else
memcpy(buffer+x*BYTESPERPIXEL+(y++)*LINEWIDTH, buf, wid);
buf+=add;
}
} else {
add=wid*prog;
base=frame*HEIGHT;
while( (h--) > 0 ) {
vga_drawscansegment(buf, x, (y++)+base, wid);
buf+=add;
}
}
}
static void fillbox(int x, int y, int w, int h, uint32_t c) {
putbox(x,y,w,h,buf0,0);
}
static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
unsigned char *srca, int stride) {
char* base;
if(oldmethod) {
base=buffer;
} else
base=((frame*HEIGHT+y_pos)*WIDTH+x_pos)*BYTESPERPIXEL + GRAPH_MEM ;
switch (bpp) {
case 32:
vo_draw_alpha_rgb32(w, h, src, srca, stride, base+4*(y0*WIDTH+x0), 4*WIDTH);
break;
case 24:
vo_draw_alpha_rgb24(w, h, src, srca, stride, base+3*(y0*WIDTH+x0), 3*WIDTH);
break;
case 16:
vo_draw_alpha_rgb16(w, h, src, srca, stride, base+2*(y0*WIDTH+x0), 2*WIDTH);
break;
case 15:
vo_draw_alpha_rgb15(w, h, src, srca, stride, base+2*(y0*WIDTH+x0), 2*WIDTH);
break;
}
}
static uint32_t get_image(mp_image_t *mpi)
{
if (/* zoomFlag || */
!IMGFMT_IS_BGR(mpi->imgfmt) ||
((mpi->type != MP_IMGTYPE_STATIC) && (mpi->type != MP_IMGTYPE_TEMP)) ||
(mpi->flags & MP_IMGFLAG_PLANAR) ||
(mpi->flags & MP_IMGFLAG_YUV) /*
(mpi->width != image_width) ||
(mpi->height != image_height) */
)
return(VO_FALSE);
/*
if (Flip_Flag)
{
mpi->stride[0] = -image_width*((bpp+7)/8);
mpi->planes[0] = ImageData - mpi->stride[0]*(image_height-1);
}
else
*/
{
mpi->stride[0] = LINEWIDTH;
if(oldmethod) {
mpi->planes[0] = buffer;
} else
mpi->planes[0] = GRAPH_MEM;
}
mpi->flags |= MP_IMGFLAG_DIRECT;
return(VO_TRUE);
}
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