Discover that various games that have black screen problem in nvidia is just caused by having negative zfar or znear values, in ati is not a problem, the drivers can handle it.

This is a test, clamp the values to see if this fix the problem, please test a lot don't know if this breaks something else 

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4491 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Rodolfo Osvaldo Bogado 2009-11-01 01:15:06 +00:00
parent 78fa929c70
commit 22a0864337
2 changed files with 8 additions and 1 deletions

View File

@ -610,8 +610,10 @@ void UpdateViewport()
// This seems to happen a lot - the above calc is probably wrong.
if (vp.MinZ < 0.0f) vp.MinZ = 0.0f;
if (vp.MinZ > 1.0f) vp.MinZ = 1.0f;
if (vp.MaxZ > 1.0f) vp.MaxZ = 1.0f;
if (vp.MaxZ < 0.0f) vp.MaxZ = 0.0f;
D3D::dev->SetViewport(&vp);
}

View File

@ -1347,6 +1347,11 @@ void UpdateViewport()
double GLNear = (xfregs.rawViewport[5] - xfregs.rawViewport[2]) / 16777216.0f;
double GLFar = xfregs.rawViewport[5] / 16777216.0f;
if (GLNear < 0.0f) GLNear = 0.0f;
if (GLNear > 1.0f) GLNear = 1.0f;
if (GLFar > 1.0f) GLFar = 1.0f;
if (GLFar < 0.0f) GLFar = 0.0f;
// Update the view port
glViewport(GLx, GLy, GLWidth, GLHeight);
glDepthRange(GLNear, GLFar);