void GLES_GPU::SetRenderFrameBuffer()
{
if (!g_Config.bBufferedRendering)
return;
// Get parameters
u32 fb_address = (gstate.fbptr & 0xFFE000) | ((gstate.fbwidth & 0xFF0000) << 8);
int fb_stride = gstate.fbwidth & 0x3C0;
u32 z_address = (gstate.zbptr & 0xFFE000) | ((gstate.zbwidth & 0xFF0000) << 8);
int z_stride = gstate.zbwidth & 0x3C0;
// Yeah this is not completely right. but it'll do for now.
int drawing_width = ((gstate.region2) & 0x3FF) + 1;
int drawing_height = ((gstate.region2 >> 10) & 0x3FF) + 1;
int fmt = gstate.framebufpixformat & 3;
// Find a matching framebuffer
VirtualFramebuffer *vfb = 0;
for (auto iter = vfbs_.begin(); iter != vfbs_.end(); ++iter)
{
VirtualFramebuffer *v = *iter;
if (v->fb_address == fb_address) {
// Let's not be so picky for now. Let's say this is the one.
vfb = v;
// Update fb stride in case it changed
vfb->fb_stride = fb_stride;
break;
}
}
// None found? Create one.
if (!vfb) {
vfb = new VirtualFramebuffer;
vfb->fb_address = fb_address;
vfb->fb_stride = fb_stride;
vfb->z_address = z_address;
vfb->z_stride = z_stride;
vfb->width = drawing_width;
vfb->height = drawing_height;
vfb->format = fmt;
vfb->fbo = fbo_create(vfb->width * widthFactor_, vfb->height * heightFactor_, 1, true);
vfbs_.push_back(vfb);
fbo_bind_as_render_target(vfb->fbo);
glViewport(0, 0, renderWidth_, renderHeight_);
currentRenderVfb_ = vfb;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
DEBUG_LOG(HLE, "Creating FBO for %08x", vfb->fb_address);
return;
}
if (vfb != currentRenderVfb_)
{
// Use it as a render target.
DEBUG_LOG(HLE, "Switching to FBO for %08x", vfb->fb_address);
fbo_bind_as_render_target(vfb->fbo);
glViewport(0, 0, renderWidth_, renderHeight_);
currentRenderVfb_ = vfb;
}
}
void hmd_common_init(int w, int h)
{
/* Create the off-screen frame buffers. */
fbo_create(&L_fbo, 5 * w / 4 / 2, 5 * h / 4);
fbo_create(&R_fbo, 5 * w / 4 / 2, 5 * h / 4);
/* Create and initialize the distortion shader. */
glsl_create(&distortion, sizeof (hmd_vert) / sizeof (char *), hmd_vert,
sizeof (hmd_frag) / sizeof (char *), hmd_frag);
/* Initialize VBOs for the on-screen rectangles. */
glGenBuffers_(1, &L_vbo);
glBindBuffer_(GL_ARRAY_BUFFER, L_vbo);
glBufferData_(GL_ARRAY_BUFFER, sizeof (L_rect), L_rect, GL_STATIC_DRAW);
glGenBuffers_(1, &R_vbo);
glBindBuffer_(GL_ARRAY_BUFFER, R_vbo);
glBufferData_(GL_ARRAY_BUFFER, sizeof (R_rect), R_rect, GL_STATIC_DRAW);
glBindBuffer_(GL_ARRAY_BUFFER, 0);
}