stjr/SRB2
0
0
Fork 0
mirror of https://git.do.srb2.org/STJr/SRB2.git synced 2024-11-22 04:21:23 +00:00
Code Issues Projects Releases Packages Wiki Activity

OpenGL Flipped Patch Drawing

Browse source 
V_FLIP in OpenGL.
This commit is contained in:
Sryder13 2014-03-23 23:37:44 +00:00
parent bb6688107b
commit 103258e364
1 changed files with 28 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
src/hardware/hw_draw.c
View file

@ -179,17 +179,37 @@ void HWR_DrawFixedPatch(GLPatch_t *gpatch, fixed_t x, fixed_t y, fixed_t pscale,
if (option & V_NOSCALESTART)
sdupx = sdupy = 2.0f;
if (option & V_FLIP) // Need to flip both this and sow
{
v[0].x = v[3].x = (cx*sdupx-(gpatch->width-gpatch->leftoffset)*pdupx)/vid.width - 1;
v[2].x = v[1].x = (cx*sdupx+gpatch->leftoffset*pdupx)/vid.width - 1;
v[0].y = v[1].y = 1-(cy*sdupy-gpatch->topoffset*pdupy)/vid.height;
v[2].y = v[3].y = 1-(cy*sdupy+(gpatch->height-gpatch->topoffset)*pdupy)/vid.height;
}
else
{
v[0].x = v[3].x = (cx*sdupx-gpatch->leftoffset*pdupx)/vid.width - 1;
v[2].x = v[1].x = (cx*sdupx+(gpatch->width-gpatch->leftoffset)*pdupx)/vid.width - 1;
v[0].y = v[1].y = 1-(cy*sdupy-gpatch->topoffset*pdupy)/vid.height;
v[2].y = v[3].y = 1-(cy*sdupy+(gpatch->height-gpatch->topoffset)*pdupy)/vid.height;
}
v[0].z = v[1].z = v[2].z = v[3].z = 1.0f;
if (option & V_FLIP)
{
v[0].sow = v[3].sow = gpatch->max_s;
v[2].sow = v[1].sow = 0.0f;
v[0].tow = v[1].tow = 0.0f;
v[2].tow = v[3].tow = gpatch->max_t;
}
else
{
v[0].sow = v[3].sow = 0.0f;
v[2].sow = v[1].sow = gpatch->max_s;
v[0].tow = v[1].tow = 0.0f;
v[2].tow = v[3].tow = gpatch->max_t;
}
flags = BLENDMODE|PF_Clip|PF_NoZClip|PF_NoDepthTest;