void R_AntialiasSetFBOSize(fbo_t *fbo)
{
if ( fbo->width != offscreenBounds.width || fbo->height != offscreenBounds.height)
{
R_ResizeFBO(offscreenBounds.width, offscreenBounds.height, 1, GL_RGBA8, fbo);
}
}
void OVR_FrameStart(int32_t changeBackBuffers)
{
if (vr_ovr_maxfov->modified)
{
int newValue = vr_ovr_maxfov->value ? 1 : 0;
if (newValue != (int)vr_ovr_maxfov->value)
Cvar_SetInteger("vr_ovr_maxfov",newValue);
changeBackBuffers = 1;
vr_ovr_maxfov->modified = (qboolean) false;
}
if (vr_ovr_supersample->modified)
{
if (vr_ovr_supersample->value < 1.0)
Cvar_Set("vr_ovr_supersample", "1.0");
else if (vr_ovr_supersample->value > 2.0)
Cvar_Set("vr_ovr_supersample", "2.0");
changeBackBuffers = 1;
vr_ovr_supersample->modified = false;
}
if (useChroma != (qboolean) !!vr_chromatic->value)
{
useChroma = (qboolean) !!vr_chromatic->value;
}
if (vr_ovr_lumoverdrive->modified)
{
changeBackBuffers = 1;
currentFrame = 0;
vr_ovr_lumoverdrive->modified = false;
}
if (changeBackBuffers)
{
int i;
float width, height;
float ovrScale;
OVR_CalculateState(¤tState);
width = glConfig.render_width / (float) hmd->Resolution.w;
height = glConfig.render_height / (float) hmd->Resolution.h;
ovrScale = (width + height) / 2.0;
ovrScale *= R_AntialiasGetScale() * vr_ovr_supersample->value;
if (vr_ovr_debug->value)
Com_Printf("VR_OVR: Set render target scale to %.2f\n",ovrScale);
for (i = 0; i < 2; i++)
{
ovrRecti viewport = {{0,0}, {0,0}};
renderInfo[i].renderTarget = ovrHmd_GetFovTextureSize(hmd, (ovrEyeType) i, renderInfo[i].eyeFov, ovrScale);
viewport.Size.w = renderInfo[i].renderTarget.w;
viewport.Size.h = renderInfo[i].renderTarget.h;
ovrHmd_GetRenderScaleAndOffset(renderInfo[i].eyeFov, renderInfo[i].renderTarget, viewport, (ovrVector2f*) renderInfo[i].UVScaleOffset);
if (renderInfo[i].renderTarget.w != renderInfo[i].eyeFBO.width || renderInfo[i].renderTarget.h != renderInfo[i].eyeFBO.height)
{
if (vr_ovr_debug->value)
Com_Printf("VR_OVR: Set buffer %i to size %i x %i\n",i,renderInfo[i].renderTarget.w, renderInfo[i].renderTarget.h);
R_ResizeFBO(renderInfo[i].renderTarget.w, renderInfo[i].renderTarget.h, 1, GL_RGBA8, &renderInfo[i].eyeFBO);
R_ClearFBO(&renderInfo[i].eyeFBO);
}
}
}
}
void R_VR_StartFrame()
{
qboolean resolutionChanged = 0;
qboolean hudChanged = 0;
extern int32_t scr_draw_loading;
if (!hmd || !hmd->frameStart || !hmd->getState)
return;
R_AntialiasSetFBOSize(vrState.offscreen);
if (vrState.offscreen->width != screen.width || vrState.offscreen->height != screen.height)
{
screen.height = vrState.offscreen->height;
screen.width = vrState.offscreen->width;
resolutionChanged = true;
}
hmd->frameStart(resolutionChanged);
hmd->getState(&vrState);
if (vr_hud_width->modified || vr_hud_height->modified)
{
int width, height;
width = vr_hud_width->value;
height = vr_hud_height->value;
if (width < 640)
width = 640;
if (height < 480)
height = 480;
Cvar_SetInteger("vr_hud_width",width);
Cvar_SetInteger("vr_hud_height",height);
vr_hud_width->modified = false;
vr_hud_height->modified = false;
Com_Printf("VR: New HUD resolution %ix%i\n",width,height);
if (hud.width != width || hud.height != height)
R_ResizeFBO(width,height,1,GL_RGBA8,&hud);
}
if (vr_hud_segments->modified)
{
// clamp value from 30-90 degrees
if (vr_hud_segments->value < 0)
Cvar_SetInteger("vr_hud_segments", 1);
else if (vr_hud_segments->value > MAX_SEGMENTS)
Cvar_SetValue("vr_hud_segments", MAX_SEGMENTS);
vr_hud_segments->modified = false;
hudChanged = true;
}
if (vr_hud_depth->modified)
{
if (vr_hud_depth->value < 0.25f)
Cvar_SetValue("vr_hud_depth", 0.25);
else if (vr_hud_depth->value > 250)
Cvar_SetValue("vr_hud_depth", 250);
vr_hud_depth->modified = false;
hudChanged = true;
}
if (vr_hud_fov->modified)
{
// clamp value from 30-90 degrees
if (vr_hud_fov->value < 30)
Cvar_SetValue("vr_hud_fov", 30.0f);
else if (vr_hud_fov->value > vrState.viewFovY * 2.0)
Cvar_SetValue("vr_hud_fov", vrState.viewFovY * 2.0);
vr_hud_fov->modified = false;
hudChanged = true;
}
if (hudChanged)
R_VR_GenerateHud();
if (resolutionChanged)
{
Com_Printf("VR: Calculated %.2f FOV\n", vrState.viewFovY);
}
GL_ClearColor(0.0, 0.0, 0.0, 0.0);
R_BindFBO(vrState.eyeFBO[0]);
R_Clear();
R_BindFBO(vrState.eyeFBO[1]);
R_Clear();
R_BindFBO(&hud);
R_Clear();
R_BindFBO(&screenFBO);
GL_SetDefaultClearColor();
hudStale = 1;
loadingScreen = (qboolean) (scr_draw_loading > 0 ? 1 : 0);
}
