static void
ilo_set_viewport_states(struct pipe_context *pipe,
unsigned start_slot,
unsigned num_viewports,
const struct pipe_viewport_state *viewports)
{
const struct ilo_dev_info *dev = ilo_context(pipe)->dev;
struct ilo_state_vector *vec = &ilo_context(pipe)->state_vector;
if (viewports) {
unsigned i;
for (i = 0; i < num_viewports; i++) {
ilo_gpe_set_viewport_cso(dev, &viewports[i],
&vec->viewport.cso[start_slot + i]);
}
if (vec->viewport.count < start_slot + num_viewports)
vec->viewport.count = start_slot + num_viewports;
/* need to save viewport 0 for util_blitter */
if (!start_slot && num_viewports)
vec->viewport.viewport0 = viewports[0];
}
else {
if (vec->viewport.count <= start_slot + num_viewports &&
vec->viewport.count > start_slot)
vec->viewport.count = start_slot;
}
vec->dirty |= ILO_DIRTY_VIEWPORT;
}
/**
* Set the states that are invariant between all ops.
*/
static bool
ilo_blitter_set_invariants(struct ilo_blitter *blitter)
{
struct pipe_vertex_element velem;
struct pipe_viewport_state vp;
if (blitter->initialized)
return true;
/* only vertex X and Y */
memset(&velem, 0, sizeof(velem));
velem.src_format = PIPE_FORMAT_R32G32_FLOAT;
ilo_gpe_init_ve(blitter->ilo->dev, 1, &velem, &blitter->ve);
/* generate VUE header */
ilo_gpe_init_ve_nosrc(blitter->ilo->dev,
GEN6_VFCOMP_STORE_0, /* Reserved */
GEN6_VFCOMP_STORE_0, /* Render Target Array Index */
GEN6_VFCOMP_STORE_0, /* Viewport Index */
GEN6_VFCOMP_STORE_0, /* Point Width */
&blitter->ve.nosrc_cso);
blitter->ve.prepend_nosrc_cso = true;
/* a rectangle has 3 vertices in a RECTLIST */
util_draw_init_info(&blitter->draw);
blitter->draw.mode = ILO_PRIM_RECTANGLES;
blitter->draw.count = 3;
/**
* From the Haswell PRM, volume 7, page 615:
*
* "The clear value must be between the min and max depth values
* (inclusive) defined in the CC_VIEWPORT."
*
* Even though clipping and viewport transformation will be disabled, we
* still need to set up the viewport states.
*/
memset(&vp, 0, sizeof(vp));
vp.scale[0] = 1.0f;
vp.scale[1] = 1.0f;
vp.scale[2] = 1.0f;
ilo_gpe_set_viewport_cso(blitter->ilo->dev, &vp, &blitter->viewport);
blitter->initialized = true;
return true;
}
