#include "brw_state.h"
#include "brw_defines.h"
#include "brw_util.h"
-#include "main/macros.h"
-#include "main/enums.h"
#include "intel_batchbuffer.h"
+#include "main/fbobject.h"
static void
upload_clip_state(struct brw_context *brw)
{
- struct intel_context *intel = &brw->intel;
- GLcontext *ctx = &intel->ctx;
- uint32_t depth_clamp = 0;
- uint32_t provoking;
+ struct gl_context *ctx = &brw->ctx;
+ uint32_t dw1 = brw->meta_in_progress ? 0 : GEN6_CLIP_STATISTICS_ENABLE;
+ uint32_t dw2 = 0;
+
+ /* _NEW_BUFFERS */
+ struct gl_framebuffer *fb = ctx->DrawBuffer;
+
+ /* CACHE_NEW_WM_PROG */
+ if (brw->wm.prog_data->barycentric_interp_modes &
+ BRW_WM_NONPERSPECTIVE_BARYCENTRIC_BITS) {
+ dw2 |= GEN6_CLIP_NON_PERSPECTIVE_BARYCENTRIC_ENABLE;
+ }
if (!ctx->Transform.DepthClamp)
- depth_clamp = GEN6_CLIP_Z_TEST;
+ dw2 |= GEN6_CLIP_Z_TEST;
+ /* _NEW_LIGHT */
if (ctx->Light.ProvokingVertex == GL_FIRST_VERTEX_CONVENTION) {
- provoking = 0;
+ dw2 |=
+ (0 << GEN6_CLIP_TRI_PROVOKE_SHIFT) |
+ (1 << GEN6_CLIP_TRIFAN_PROVOKE_SHIFT) |
+ (0 << GEN6_CLIP_LINE_PROVOKE_SHIFT);
} else {
- provoking =
+ dw2 |=
(2 << GEN6_CLIP_TRI_PROVOKE_SHIFT) |
(2 << GEN6_CLIP_TRIFAN_PROVOKE_SHIFT) |
(1 << GEN6_CLIP_LINE_PROVOKE_SHIFT);
}
+ /* _NEW_TRANSFORM */
+ dw2 |= (ctx->Transform.ClipPlanesEnabled <<
+ GEN6_USER_CLIP_CLIP_DISTANCES_SHIFT);
+
+ if (ctx->Viewport.X == 0 &&
+ ctx->Viewport.Y == 0 &&
+ ctx->Viewport.Width == fb->Width &&
+ ctx->Viewport.Height == fb->Height) {
+ dw2 |= GEN6_CLIP_GB_TEST;
+ }
+
+ /* BRW_NEW_RASTERIZER_DISCARD */
+ if (ctx->RasterDiscard) {
+ dw2 |= GEN6_CLIP_MODE_REJECT_ALL;
+ perf_debug("Rasterizer discard is currently implemented via the clipper; "
+ "having the GS not write primitives would likely be faster.");
+ }
+
BEGIN_BATCH(4);
- OUT_BATCH(CMD_3D_CLIP_STATE << 16 | (4 - 2));
- OUT_BATCH(0);
+ OUT_BATCH(_3DSTATE_CLIP << 16 | (4 - 2));
+ OUT_BATCH(dw1);
OUT_BATCH(GEN6_CLIP_ENABLE |
GEN6_CLIP_API_OGL |
- GEN6_CLIP_MODE_REJECT_ALL | /* XXX: debug: get VS working */
+ GEN6_CLIP_MODE_NORMAL |
GEN6_CLIP_XY_TEST |
- depth_clamp |
- provoking);
- OUT_BATCH(0);
+ dw2);
+ OUT_BATCH(U_FIXED(0.125, 3) << GEN6_CLIP_MIN_POINT_WIDTH_SHIFT |
+ U_FIXED(255.875, 3) << GEN6_CLIP_MAX_POINT_WIDTH_SHIFT |
+ GEN6_CLIP_FORCE_ZERO_RTAINDEX);
ADVANCE_BATCH();
-
- intel_batchbuffer_emit_mi_flush(intel->batch);
}
const struct brw_tracked_state gen6_clip_state = {
.dirty = {
- .mesa = _NEW_TRANSFORM,
- .brw = BRW_NEW_CONTEXT,
- .cache = 0
+ .mesa = _NEW_TRANSFORM | _NEW_LIGHT | _NEW_BUFFERS,
+ .brw = BRW_NEW_CONTEXT |
+ BRW_NEW_META_IN_PROGRESS |
+ BRW_NEW_RASTERIZER_DISCARD,
+ .cache = CACHE_NEW_WM_PROG
},
.emit = upload_clip_state,
};