#include "genxml/gen_macros.h"
#include "genxml/genX_pack.h"
+#include "common/gen_guardband.h"
#if GEN_GEN == 8
void
gen8_cmd_buffer_emit_viewport(struct anv_cmd_buffer *cmd_buffer)
{
+ struct anv_framebuffer *fb = cmd_buffer->state.framebuffer;
uint32_t count = cmd_buffer->state.gfx.dynamic.viewport.count;
const VkViewport *viewports =
cmd_buffer->state.gfx.dynamic.viewport.viewports;
/* The gen7 state struct has just the matrix and guardband fields, the
* gen8 struct adds the min/max viewport fields. */
- struct GENX(SF_CLIP_VIEWPORT) sf_clip_viewport = {
+ struct GENX(SF_CLIP_VIEWPORT) sfv = {
.ViewportMatrixElementm00 = vp->width / 2,
.ViewportMatrixElementm11 = vp->height / 2,
.ViewportMatrixElementm22 = vp->maxDepth - vp->minDepth,
.YMaxViewPort = MAX2(vp->y, vp->y + vp->height) - 1,
};
- GENX(SF_CLIP_VIEWPORT_pack)(NULL, sf_clip_state.map + i * 64,
- &sf_clip_viewport);
+ if (fb) {
+ /* We can only calculate a "real" guardband clip if we know the
+ * framebuffer at the time we emit the packet. Otherwise, we have
+ * fall back to a worst-case guardband of [-1, 1].
+ */
+ gen_calculate_guardband_size(fb->width, fb->height,
+ sfv.ViewportMatrixElementm00,
+ sfv.ViewportMatrixElementm11,
+ sfv.ViewportMatrixElementm30,
+ sfv.ViewportMatrixElementm31,
+ &sfv.XMinClipGuardband,
+ &sfv.XMaxClipGuardband,
+ &sfv.YMinClipGuardband,
+ &sfv.YMaxClipGuardband);
+ }
+
+ GENX(SF_CLIP_VIEWPORT_pack)(NULL, sf_clip_state.map + i * 64, &sfv);
}
anv_batch_emit(&cmd_buffer->batch,