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- Changed the vertheight and rounding-error-checking code in

Browse source 
DCanvas::DrawTexture() to calculate off the actual bottom of the image
  instead of the height, improving precision. Now the scaled status bar is
  flush with the bottom of the screen at 1280x1024, for instance.


SVN r458 (trunk)
This commit is contained in:
Randy Heit 2007-01-22 23:14:00 +00:00
parent b4390308df
commit 0b5e4b1f1f
4 changed files with 21 additions and 19 deletions
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4
docs/rh-log.txt
View file

@ -1,4 +1,8 @@
January 22, 2007
- Changed the vertheight and rounding-error-checking code in
DCanvas::DrawTexture() to calculate off the actual bottom of the image
instead of the height, improving precision. Now the scaled status bar is
flush with the bottom of the screen at 1280x1024, for instance.
- Added a new WIF_NO_AUTO_SWITCH flag for weapons that should never be
switched to automatically when the player picks them up.

5
src/g_shared/shared_sbar.cpp
View file

@ -921,11 +921,6 @@ void FBaseStatusBar::RefreshBackground () const
R_DrawBorder (0, y, x, SCREENHEIGHT);
R_DrawBorder (x2, y, SCREENWIDTH, SCREENHEIGHT);
if (Scaled && ::ST_Y + RelTop*SCREENHEIGHT/200 != SCREENHEIGHT)
{ // Fill the thin line beneath the status bar that we got thanks to rounding error
R_DrawBorder (x, SCREENHEIGHT-1, x2, SCREENHEIGHT);
}
if (setblocks >= 10)
{
const gameborder_t *border = gameinfo.border;

23
src/v_draw.cpp
View file

@ -335,23 +335,24 @@ void STACK_ARGS DCanvas::DrawTexture (FTexture *img, int x0, int y0, int tags_fi
if (virtWidth != Width || virtHeight != Height)
{
int myratio = CheckRatio (Width, Height);
if (myratio != 0 && !keepratio)
int right = x0 + destwidth;
int bottom = y0 + destheight;
if (myratio != 0 && myratio != 4 && !keepratio)
{ // The target surface is not 4:3, so expand the specified
// virtual size to avoid undesired stretching of the image.
// Does not handle non-4:3 virtual sizes. I'll worry about
// those if somebody expresses a desire to use them.
x0 = Scale (Width*960, x0-virtWidth*FRACUNIT/2, virtWidth*BaseRatioSizes[myratio][0]) + Width*FRACUNIT/2;
y0 = Scale (Height, y0, virtHeight);
destwidth = FixedDiv (Width*960 * (destwidth>>FRACBITS), virtWidth*BaseRatioSizes[myratio][0]);
destheight = FixedDiv (Height * (destheight>>FRACBITS), virtHeight);
x0 = Scale (x0-virtWidth*FRACUNIT/2, Width*960, virtWidth*BaseRatioSizes[myratio][0]) + Width*FRACUNIT/2;
destwidth = Scale (right-virtWidth*FRACUNIT/2, Width*960, virtWidth*BaseRatioSizes[myratio][0]) + Width*FRACUNIT/2 - x0;
}
else
{
x0 = Scale (Width, x0, virtWidth);
y0 = Scale (Height, y0, virtHeight);
destwidth = FixedDiv (Width * (destwidth>>FRACBITS), virtWidth);
destheight = FixedDiv (Height * (destheight>>FRACBITS), virtHeight);
x0 = Scale (x0, Width, virtWidth);
destwidth = Scale (right, Width, virtWidth) - x0;
}
y0 = Scale (y0, Height, virtHeight);
destheight = Scale (bottom, Height, virtHeight) - y0;
}
if (destwidth <= 0 || destheight <= 0)
@ -428,8 +429,10 @@ void STACK_ARGS DCanvas::DrawTexture (FTexture *img, int x0, int y0, int tags_fi
spryscale = destheight / img->GetHeight();
// Fix precision errors that are noticeable at some resolutions
if ((spryscale * img->GetHeight()) >> FRACBITS != destheight >> FRACBITS)
if (((y0 + destheight) >> FRACBITS) > ((y0 + spryscale * img->GetHeight()) >> FRACBITS))
{
spryscale++;
}
sprflipvert = false;
dc_iscale = 0xffffffffu / (unsigned)spryscale;

8
src/v_video.cpp
View file

@ -1065,9 +1065,9 @@ int CheckRatio (int width, int height)
// Fourth column: Width or height multiplier
const int BaseRatioSizes[5][4] =
{
{ 960, 600, 0, 48 }, // 320, 200, multiplied by three
{ 1280, 450, 0, 48*3/4 }, // 426.6667, 150, multiplied by three
{ 1152, 500, 0, 48*5/6 }, // 386, 166.6667, multiplied by three
{ 960, 600, 0, 48 }, // 4:3 320, 200, multiplied by three
{ 1280, 450, 0, 48*3/4 }, // 16:9 426.6667, 150, multiplied by three
{ 1152, 500, 0, 48*5/6 }, // 16:10 386, 166.6667, multiplied by three
{ 960, 600, 0, 48 },
{ 960, 640, (int)(6.5*FRACUNIT), 48*15/16 } // 320, 213.3333, multiplied by three
{ 960, 640, (int)(6.5*FRACUNIT), 48*15/16 } // 5:4 320, 213.3333, multiplied by three
};