#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"
return false;
}
-static void
-upload_clip_state(struct brw_context *brw)
-{
- struct gl_context *ctx = &brw->ctx;
- /* BRW_NEW_META_IN_PROGRESS */
- uint32_t dw1 = brw->meta_in_progress ? 0 : GEN6_CLIP_STATISTICS_ENABLE;
- uint32_t dw2 = 0;
-
- /* _NEW_BUFFERS */
- struct gl_framebuffer *fb = ctx->DrawBuffer;
-
- /* BRW_NEW_FS_PROG_DATA */
- if (brw_wm_prog_data(brw->wm.base.prog_data)->barycentric_interp_modes &
- BRW_BARYCENTRIC_NONPERSPECTIVE_BITS) {
- dw2 |= GEN6_CLIP_NON_PERSPECTIVE_BARYCENTRIC_ENABLE;
- }
-
- /* BRW_NEW_VS_PROG_DATA */
- dw1 |= brw_vue_prog_data(brw->vs.base.prog_data)->cull_distance_mask;
-
- if (brw->gen >= 7)
- dw1 |= GEN7_CLIP_EARLY_CULL;
-
- if (brw->gen == 7) {
- /* _NEW_POLYGON */
- if (ctx->Polygon._FrontBit == _mesa_is_user_fbo(fb))
- dw1 |= GEN7_CLIP_WINDING_CCW;
-
- if (ctx->Polygon.CullFlag) {
- switch (ctx->Polygon.CullFaceMode) {
- case GL_FRONT:
- dw1 |= GEN7_CLIP_CULLMODE_FRONT;
- break;
- case GL_BACK:
- dw1 |= GEN7_CLIP_CULLMODE_BACK;
- break;
- case GL_FRONT_AND_BACK:
- dw1 |= GEN7_CLIP_CULLMODE_BOTH;
- break;
- default:
- unreachable("Should not get here: invalid CullFlag");
- }
- } else {
- dw1 |= GEN7_CLIP_CULLMODE_NONE;
- }
- }
-
- if (brw->gen < 8 && !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);
- } else {
- 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);
-
- /* Have the hardware use the user clip distance clip test enable bitmask
- * specified here in 3DSTATE_CLIP rather than the one in 3DSTATE_VS/DS/GS.
- * We already listen to _NEW_TRANSFORM here, but the other atoms don't
- * need to other than this.
- */
- if (brw->gen >= 8)
- dw1 |= GEN8_CLIP_FORCE_USER_CLIP_DISTANCE_BITMASK;
-
- if (ctx->Transform.ClipDepthMode == GL_ZERO_TO_ONE)
- dw2 |= GEN6_CLIP_API_D3D;
- else
- dw2 |= GEN6_CLIP_API_OGL;
-
- dw2 |= GEN6_CLIP_GB_TEST;
-
- /* BRW_NEW_VIEWPORT_COUNT */
- const unsigned viewport_count = brw->clip.viewport_count;
-
- /* BRW_NEW_RASTERIZER_DISCARD */
- if (ctx->RasterDiscard) {
- dw2 |= GEN6_CLIP_MODE_REJECT_ALL;
- if (brw->gen == 6) {
- perf_debug("Rasterizer discard is currently implemented via the "
- "clipper; having the GS not write primitives would "
- "likely be faster.\n");
- }
- }
-
- uint32_t enable;
- if (brw->primitive == _3DPRIM_RECTLIST)
- enable = 0;
- else
- enable = GEN6_CLIP_ENABLE;
-
- /* _NEW_POLYGON,
- * BRW_NEW_GEOMETRY_PROGRAM | BRW_NEW_TES_PROG_DATA | BRW_NEW_PRIMITIVE
- */
- if (!brw_is_drawing_points(brw) && !brw_is_drawing_lines(brw))
- dw2 |= GEN6_CLIP_XY_TEST;
-
- BEGIN_BATCH(4);
- OUT_BATCH(_3DSTATE_CLIP << 16 | (4 - 2));
- OUT_BATCH(dw1);
- OUT_BATCH(enable |
- GEN6_CLIP_MODE_NORMAL |
- 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 |
- (_mesa_geometric_layers(fb) > 0 ? 0 : GEN6_CLIP_FORCE_ZERO_RTAINDEX) |
- ((viewport_count - 1) & GEN6_CLIP_MAX_VP_INDEX_MASK));
- ADVANCE_BATCH();
-}
-
-const struct brw_tracked_state gen6_clip_state = {
- .dirty = {
- .mesa = _NEW_BUFFERS |
- _NEW_LIGHT |
- _NEW_POLYGON |
- _NEW_TRANSFORM,
- .brw = BRW_NEW_BLORP |
- BRW_NEW_CONTEXT |
- BRW_NEW_FS_PROG_DATA |
- BRW_NEW_GS_PROG_DATA |
- BRW_NEW_VS_PROG_DATA |
- BRW_NEW_META_IN_PROGRESS |
- BRW_NEW_PRIMITIVE |
- BRW_NEW_RASTERIZER_DISCARD |
- BRW_NEW_TES_PROG_DATA |
- BRW_NEW_VIEWPORT_COUNT,
- },
- .emit = upload_clip_state,
-};
projects / mesa.git / blobdiff