#include "brw_context.h"
#include "brw_state.h"
#include "brw_defines.h"
+#include "compiler/brw_eu_defines.h"
#include "brw_util.h"
#include "intel_batchbuffer.h"
#include "main/fbobject.h"
+#include "main/framebuffer.h"
-static void
-upload_clip_state(struct brw_context *brw)
+bool
+brw_is_drawing_points(const struct brw_context *brw)
{
- struct intel_context *intel = &brw->intel;
- struct gl_context *ctx = &intel->ctx;
- 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;
+ /* Determine if the primitives *reaching the SF* are points */
+ /* _NEW_POLYGON */
+ if (brw->ctx.Polygon.FrontMode == GL_POINT ||
+ brw->ctx.Polygon.BackMode == GL_POINT) {
+ return true;
}
- if (!ctx->Transform.DepthClamp)
- dw2 |= GEN6_CLIP_Z_TEST;
-
- /* _NEW_LIGHT */
- if (ctx->Light.ProvokingVertex == GL_FIRST_VERTEX_CONVENTION) {
- dw2 |=
- (0 << GEN6_CLIP_TRI_PROVOKE_SHIFT) |
- (1 << GEN6_CLIP_TRIFAN_PROVOKE_SHIFT) |
- (0 << GEN6_CLIP_LINE_PROVOKE_SHIFT);
+ if (brw->gs.base.prog_data) {
+ /* BRW_NEW_GS_PROG_DATA */
+ return brw_gs_prog_data(brw->gs.base.prog_data)->output_topology ==
+ _3DPRIM_POINTLIST;
+ } else if (brw->tes.base.prog_data) {
+ /* BRW_NEW_TES_PROG_DATA */
+ return brw_tes_prog_data(brw->tes.base.prog_data)->output_topology ==
+ BRW_TESS_OUTPUT_TOPOLOGY_POINT;
} else {
- dw2 |=
- (2 << GEN6_CLIP_TRI_PROVOKE_SHIFT) |
- (2 << GEN6_CLIP_TRIFAN_PROVOKE_SHIFT) |
- (1 << GEN6_CLIP_LINE_PROVOKE_SHIFT);
+ /* BRW_NEW_PRIMITIVE */
+ return brw->primitive == _3DPRIM_POINTLIST;
}
+}
- /* _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;
+bool
+brw_is_drawing_lines(const struct brw_context *brw)
+{
+ /* Determine if the primitives *reaching the SF* are points */
+ /* _NEW_POLYGON */
+ if (brw->ctx.Polygon.FrontMode == GL_LINE ||
+ brw->ctx.Polygon.BackMode == GL_LINE) {
+ return true;
}
- BEGIN_BATCH(4);
- OUT_BATCH(_3DSTATE_CLIP << 16 | (4 - 2));
- OUT_BATCH(GEN6_CLIP_STATISTICS_ENABLE);
- OUT_BATCH(GEN6_CLIP_ENABLE |
- GEN6_CLIP_API_OGL |
- GEN6_CLIP_MODE_NORMAL |
- GEN6_CLIP_XY_TEST |
- 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();
+ if (brw->gs.base.prog_data) {
+ /* BRW_NEW_GS_PROG_DATA */
+ return brw_gs_prog_data(brw->gs.base.prog_data)->output_topology ==
+ _3DPRIM_LINESTRIP;
+ } else if (brw->tes.base.prog_data) {
+ /* BRW_NEW_TES_PROG_DATA */
+ return brw_tes_prog_data(brw->tes.base.prog_data)->output_topology ==
+ BRW_TESS_OUTPUT_TOPOLOGY_LINE;
+ } else {
+ /* BRW_NEW_PRIMITIVE */
+ switch (brw->primitive) {
+ case _3DPRIM_LINELIST:
+ case _3DPRIM_LINESTRIP:
+ case _3DPRIM_LINELOOP:
+ return true;
+ }
+ }
+ return false;
}
-const struct brw_tracked_state gen6_clip_state = {
- .dirty = {
- .mesa = _NEW_TRANSFORM | _NEW_LIGHT | _NEW_BUFFERS,
- .brw = (BRW_NEW_CONTEXT),
- .cache = CACHE_NEW_WM_PROG
- },
- .emit = upload_clip_state,
-};