diff options
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.c | 95 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.h | 1 |
2 files changed, 85 insertions, 11 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 057458c843a..8087d2331ff 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -830,25 +830,93 @@ static void si_set_scissor_states(struct pipe_context *ctx, for (i = 0; i < num_scissors; i++) sctx->scissors.states[start_slot + i] = state[i]; + if (!sctx->queued.named.rasterizer || + !sctx->queued.named.rasterizer->scissor_enable) + return; + sctx->scissors.dirty_mask |= ((1 << num_scissors) - 1) << start_slot; si_mark_atom_dirty(sctx, &sctx->scissors.atom); } +static void si_get_scissor_from_viewport(struct pipe_viewport_state *vp, + struct pipe_scissor_state *scissor) +{ + /* These must be signed, unlike pipe_scissor_state. */ + int minx, miny, maxx, maxy, tmp; + + /* Convert (-1, -1) and (1, 1) from clip space into window space. */ + minx = -vp->scale[0] + vp->translate[0]; + miny = -vp->scale[1] + vp->translate[1]; + maxx = vp->scale[0] + vp->translate[0]; + maxy = vp->scale[1] + vp->translate[1]; + + /* r600_draw_rectangle sets this. Disable the scissor. */ + if (minx == -1 && miny == -1 && maxx == 1 && maxy == 1) { + minx = miny = 0; + maxx = maxy = 16384; + } + + /* Handle inverted viewports. */ + if (minx > maxx) { + tmp = minx; + minx = maxx; + maxx = tmp; + } + if (miny > maxy) { + tmp = miny; + miny = maxy; + maxy = tmp; + } + + scissor->minx = CLAMP(minx, 0, 16384); + scissor->miny = CLAMP(miny, 0, 16384); + scissor->maxx = CLAMP(maxx, 0, 16384); + scissor->maxy = CLAMP(maxy, 0, 16384); +} + +static void si_clip_scissor(struct pipe_scissor_state *out, + struct pipe_scissor_state *clip) +{ + out->minx = MAX2(out->minx, clip->minx); + out->miny = MAX2(out->miny, clip->miny); + out->maxx = MIN2(out->maxx, clip->maxx); + out->maxy = MIN2(out->maxy, clip->maxy); +} + +static void si_emit_one_scissor(struct radeon_winsys_cs *cs, + struct pipe_viewport_state *vp, + struct pipe_scissor_state *scissor) +{ + struct pipe_scissor_state final; + + /* Since the guard band disables clipping, we have to clip per-pixel + * using a scissor. + */ + si_get_scissor_from_viewport(vp, &final); + + if (scissor) + si_clip_scissor(&final, scissor); + + radeon_emit(cs, S_028250_TL_X(final.minx) | + S_028250_TL_Y(final.miny) | + S_028250_WINDOW_OFFSET_DISABLE(1)); + radeon_emit(cs, S_028254_BR_X(final.maxx) | + S_028254_BR_Y(final.maxy)); +} + static void si_emit_scissors(struct si_context *sctx, struct r600_atom *atom) { struct radeon_winsys_cs *cs = sctx->b.gfx.cs; struct pipe_scissor_state *states = sctx->scissors.states; unsigned mask = sctx->scissors.dirty_mask; + bool scissor_enable = sctx->queued.named.rasterizer->scissor_enable; /* The simple case: Only 1 viewport is active. */ if (mask & 1 && !si_get_vs_info(sctx)->writes_viewport_index) { radeon_set_context_reg_seq(cs, R_028250_PA_SC_VPORT_SCISSOR_0_TL, 2); - radeon_emit(cs, S_028250_TL_X(states[0].minx) | - S_028250_TL_Y(states[0].miny) | - S_028250_WINDOW_OFFSET_DISABLE(1)); - radeon_emit(cs, S_028254_BR_X(states[0].maxx) | - S_028254_BR_Y(states[0].maxy)); + si_emit_one_scissor(cs, &sctx->viewports.states[0], + scissor_enable ? &states[0] : NULL); sctx->scissors.dirty_mask &= ~1; /* clear one bit */ return; } @@ -861,11 +929,8 @@ static void si_emit_scissors(struct si_context *sctx, struct r600_atom *atom) radeon_set_context_reg_seq(cs, R_028250_PA_SC_VPORT_SCISSOR_0_TL + start * 4 * 2, count * 2); for (i = start; i < start+count; i++) { - radeon_emit(cs, S_028250_TL_X(states[i].minx) | - S_028250_TL_Y(states[i].miny) | - S_028250_WINDOW_OFFSET_DISABLE(1)); - radeon_emit(cs, S_028254_BR_X(states[i].maxx) | - S_028254_BR_Y(states[i].maxy)); + si_emit_one_scissor(cs, &sctx->viewports.states[i], + scissor_enable ? &states[i] : NULL); } } sctx->scissors.dirty_mask = 0; @@ -883,7 +948,9 @@ static void si_set_viewport_states(struct pipe_context *ctx, sctx->viewports.states[start_slot + i] = state[i]; sctx->viewports.dirty_mask |= ((1 << num_viewports) - 1) << start_slot; + sctx->scissors.dirty_mask |= ((1 << num_viewports) - 1) << start_slot; si_mark_atom_dirty(sctx, &sctx->viewports.atom); + si_mark_atom_dirty(sctx, &sctx->scissors.atom); } static void si_emit_viewports(struct si_context *sctx, struct r600_atom *atom) @@ -980,6 +1047,7 @@ static void *si_create_rs_state(struct pipe_context *ctx, return NULL; } + rs->scissor_enable = state->scissor; rs->two_side = state->light_twoside; rs->multisample_enable = state->multisample; rs->force_persample_interp = state->force_persample_interp; @@ -1038,7 +1106,7 @@ static void *si_create_rs_state(struct pipe_context *ctx, S_028A48_MSAA_ENABLE(state->multisample || state->poly_smooth || state->line_smooth) | - S_028A48_VPORT_SCISSOR_ENABLE(state->scissor)); + S_028A48_VPORT_SCISSOR_ENABLE(1)); si_pm4_set_reg(pm4, R_028BE4_PA_SU_VTX_CNTL, S_028BE4_PIX_CENTER(state->half_pixel_center) | @@ -1105,6 +1173,11 @@ static void si_bind_rs_state(struct pipe_context *ctx, void *state) (!old_rs || old_rs->multisample_enable != rs->multisample_enable)) si_mark_atom_dirty(sctx, &sctx->db_render_state); + if (!old_rs || old_rs->scissor_enable != rs->scissor_enable) { + sctx->scissors.dirty_mask = (1 << SI_MAX_VIEWPORTS) - 1; + si_mark_atom_dirty(sctx, &sctx->scissors.atom); + } + si_pm4_bind_state(sctx, rasterizer, rs); si_update_poly_offset_state(sctx); diff --git a/src/gallium/drivers/radeonsi/si_state.h b/src/gallium/drivers/radeonsi/si_state.h index bec99e15efa..f55f19e2918 100644 --- a/src/gallium/drivers/radeonsi/si_state.h +++ b/src/gallium/drivers/radeonsi/si_state.h @@ -68,6 +68,7 @@ struct si_state_rasterizer { bool uses_poly_offset; bool clamp_fragment_color; bool rasterizer_discard; + bool scissor_enable; }; struct si_dsa_stencil_ref_part { |