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Final fix of libmpeg2 zooming: flipping page support 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2332 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nick 2001-10-21 12:42:17 +00:00
parent e95d9effa0
commit 41ef04a130
1 changed files with 7 additions and 40 deletions
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47
libvo/vo_vesa.c
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@ -72,8 +72,6 @@ struct win_frame
static int vesa_zoom=0; /* software scaling */
static unsigned int scale_xinc=0;
static unsigned int scale_yinc=0;
static float aspect_factor;
static uint32_t image_width, image_height; /* source image dimension */
static int32_t x_offset,y_offset; /* to center image on screen */
@ -83,6 +81,7 @@ static struct win_frame win; /* real-mode window to video memory */
static uint8_t *yuv_buffer = NULL; /* for yuv2rgb and sw_scaling */
static unsigned video_mode; /* selected video mode for playback */
static struct VesaModeInfoBlock video_mode_info;
static int flip_trigger = 0;
#define MOVIE_MODE (MODE_ATTR_COLOR | MODE_ATTR_GRAPHICS)
#define FRAME_MODE (MODE_WIN_RELOCATABLE | MODE_WIN_READABLE | MODE_WIN_WRITEABLE)
@ -236,32 +235,6 @@ static void __vbeCopyData(uint8_t *image)
}
}
static void __vbeCopySliceData(uint8_t *image,int x, int y, int w, int h)
{
unsigned long i,j,image_offset,offset;
unsigned pixel_size,image_line_size,screen_line_size,x_shift;
pixel_size = (video_mode_info.BitsPerPixel+7)/8;
screen_line_size = video_mode_info.XResolution*pixel_size;
image_line_size = w*pixel_size;
#if 0
if(image_width == video_mode_info.XResolution && w == image_width)
{
/* Special case for zooming */
__vbeCopyBlock((y_offset+y)*screen_line_size,image,image_line_size*image_height);
}
else
#endif
{
x_shift = (x_offset+x)*pixel_size;
for(j=0,i=y_offset+y;j<h;i++,j++)
{
offset = i*screen_line_size+x_shift;
image_offset = j*image_line_size;
__vbeCopyBlock(offset,&image[image_offset],image_line_size);
}
}
}
/* is called for yuv only */
static uint32_t draw_slice(uint8_t *image[], int stride[], int w,int h,int x,int y)
{
@ -272,23 +245,16 @@ static uint32_t draw_slice(uint8_t *image[], int stride[], int w,int h,int x,int
image_width*((video_mode_info.BitsPerPixel+7)/8),
image_width, video_mode_info.BitsPerPixel,
scale_xinc, scale_yinc);
if(y || x || w != image_width || h != image_height)
{
w = image_width;
h = image_height;
y = 0;
x = 0;
}
}
else
{
yuv2rgb(yuv_buffer, image[0], image[1], image[2], w, h,
uint8_t *yuv_slice;
yuv_slice=yuv_buffer+(image_width*y+x)*((video_mode_info.BitsPerPixel+7)/8);
yuv2rgb(yuv_slice, image[0], image[1], image[2], w, h,
image_width * ((video_mode_info.BitsPerPixel+7)/8),
stride[0], stride[1]);
}
if(y || x || w != image_width || h != image_height)
__vbeCopySliceData((uint8_t*)yuv_buffer,x,y,w,h);
else __vbeCopyData((uint8_t *)yuv_buffer);
flip_trigger = 1;
return 0;
}
@ -299,7 +265,7 @@ static void draw_osd(void)
static void flip_page(void)
{
/*Is not required*/
if(flip_trigger) { __vbeCopyData(yuv_buffer); flip_trigger = 0; }
}
/* is called for rgb only */
@ -342,6 +308,7 @@ static void vesa_aspect(uint32_t width,uint32_t height,
uint32_t xres,uint32_t yres,
uint32_t *image_width,uint32_t *image_height)
{
float aspect_factor;
aspect_factor = (float)width / height;
*image_width = xres;
*image_height = xres /aspect_factor;