1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3 /*
4 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 * Rob Clark <robclark@freedesktop.org>
27 */
28
29 #include "pipe/p_state.h"
30 #include "util/u_string.h"
31 #include "util/u_memory.h"
32 #include "util/u_prim.h"
33 #include "util/u_format.h"
34
35 #include "freedreno_state.h"
36 #include "freedreno_resource.h"
37
38 #include "fd3_draw.h"
39 #include "fd3_context.h"
40 #include "fd3_emit.h"
41 #include "fd3_program.h"
42 #include "fd3_format.h"
43 #include "fd3_zsa.h"
44
45 static inline uint32_t
add_sat(uint32_t a,int32_t b)46 add_sat(uint32_t a, int32_t b)
47 {
48 int64_t ret = (uint64_t)a + (int64_t)b;
49 if (ret > ~0U)
50 return ~0U;
51 if (ret < 0)
52 return 0;
53 return (uint32_t)ret;
54 }
55
56 static void
draw_impl(struct fd_context * ctx,struct fd_ringbuffer * ring,struct fd3_emit * emit)57 draw_impl(struct fd_context *ctx, struct fd_ringbuffer *ring,
58 struct fd3_emit *emit)
59 {
60 const struct pipe_draw_info *info = emit->info;
61 enum pc_di_primtype primtype = ctx->primtypes[info->mode];
62
63 fd3_emit_state(ctx, ring, emit);
64
65 if (emit->dirty & (FD_DIRTY_VTXBUF | FD_DIRTY_VTXSTATE))
66 fd3_emit_vertex_bufs(ring, emit);
67
68 OUT_PKT0(ring, REG_A3XX_PC_VERTEX_REUSE_BLOCK_CNTL, 1);
69 OUT_RING(ring, 0x0000000b); /* PC_VERTEX_REUSE_BLOCK_CNTL */
70
71 OUT_PKT0(ring, REG_A3XX_VFD_INDEX_MIN, 4);
72 OUT_RING(ring, add_sat(info->min_index, info->index_bias)); /* VFD_INDEX_MIN */
73 OUT_RING(ring, add_sat(info->max_index, info->index_bias)); /* VFD_INDEX_MAX */
74 OUT_RING(ring, info->start_instance); /* VFD_INSTANCEID_OFFSET */
75 OUT_RING(ring, info->indexed ? info->index_bias : info->start); /* VFD_INDEX_OFFSET */
76
77 OUT_PKT0(ring, REG_A3XX_PC_RESTART_INDEX, 1);
78 OUT_RING(ring, info->primitive_restart ? /* PC_RESTART_INDEX */
79 info->restart_index : 0xffffffff);
80
81 /* points + psize -> spritelist: */
82 if (ctx->rasterizer->point_size_per_vertex &&
83 fd3_emit_get_vp(emit)->writes_psize &&
84 (info->mode == PIPE_PRIM_POINTS))
85 primtype = DI_PT_POINTLIST_PSIZE;
86
87 fd_draw_emit(ctx->batch, ring, primtype,
88 emit->key.binning_pass ? IGNORE_VISIBILITY : USE_VISIBILITY,
89 info);
90 }
91
92 /* fixup dirty shader state in case some "unrelated" (from the state-
93 * tracker's perspective) state change causes us to switch to a
94 * different variant.
95 */
96 static void
fixup_shader_state(struct fd_context * ctx,struct ir3_shader_key * key)97 fixup_shader_state(struct fd_context *ctx, struct ir3_shader_key *key)
98 {
99 struct fd3_context *fd3_ctx = fd3_context(ctx);
100 struct ir3_shader_key *last_key = &fd3_ctx->last_key;
101
102 if (!ir3_shader_key_equal(last_key, key)) {
103 if (last_key->has_per_samp || key->has_per_samp) {
104 if ((last_key->vsaturate_s != key->vsaturate_s) ||
105 (last_key->vsaturate_t != key->vsaturate_t) ||
106 (last_key->vsaturate_r != key->vsaturate_r))
107 ctx->dirty |= FD_SHADER_DIRTY_VP;
108
109 if ((last_key->fsaturate_s != key->fsaturate_s) ||
110 (last_key->fsaturate_t != key->fsaturate_t) ||
111 (last_key->fsaturate_r != key->fsaturate_r))
112 ctx->dirty |= FD_SHADER_DIRTY_FP;
113 }
114
115 if (last_key->vclamp_color != key->vclamp_color)
116 ctx->dirty |= FD_SHADER_DIRTY_VP;
117
118 if (last_key->fclamp_color != key->fclamp_color)
119 ctx->dirty |= FD_SHADER_DIRTY_FP;
120
121 if (last_key->color_two_side != key->color_two_side)
122 ctx->dirty |= FD_SHADER_DIRTY_FP;
123
124 if (last_key->half_precision != key->half_precision)
125 ctx->dirty |= FD_SHADER_DIRTY_FP;
126
127 if (last_key->ucp_enables != key->ucp_enables)
128 ctx->dirty |= FD_SHADER_DIRTY_FP | FD_SHADER_DIRTY_VP;
129
130 fd3_ctx->last_key = *key;
131 }
132 }
133
134 static bool
fd3_draw_vbo(struct fd_context * ctx,const struct pipe_draw_info * info)135 fd3_draw_vbo(struct fd_context *ctx, const struct pipe_draw_info *info)
136 {
137 struct fd3_context *fd3_ctx = fd3_context(ctx);
138 struct fd3_emit emit = {
139 .debug = &ctx->debug,
140 .vtx = &ctx->vtx,
141 .prog = &ctx->prog,
142 .info = info,
143 .key = {
144 .color_two_side = ctx->rasterizer->light_twoside,
145 .vclamp_color = ctx->rasterizer->clamp_vertex_color,
146 .fclamp_color = ctx->rasterizer->clamp_fragment_color,
147 .half_precision = ctx->in_blit &&
148 fd_half_precision(&ctx->batch->framebuffer),
149 .has_per_samp = (fd3_ctx->fsaturate || fd3_ctx->vsaturate),
150 .vsaturate_s = fd3_ctx->vsaturate_s,
151 .vsaturate_t = fd3_ctx->vsaturate_t,
152 .vsaturate_r = fd3_ctx->vsaturate_r,
153 .fsaturate_s = fd3_ctx->fsaturate_s,
154 .fsaturate_t = fd3_ctx->fsaturate_t,
155 .fsaturate_r = fd3_ctx->fsaturate_r,
156 },
157 .rasterflat = ctx->rasterizer->flatshade,
158 .sprite_coord_enable = ctx->rasterizer->sprite_coord_enable,
159 .sprite_coord_mode = ctx->rasterizer->sprite_coord_mode,
160 };
161
162 if (fd3_needs_manual_clipping(ctx->prog.vp, ctx->rasterizer))
163 emit.key.ucp_enables = ctx->rasterizer->clip_plane_enable;
164
165 fixup_shader_state(ctx, &emit.key);
166
167 unsigned dirty = ctx->dirty;
168
169 /* do regular pass first, since that is more likely to fail compiling: */
170
171 if (!(fd3_emit_get_vp(&emit) && fd3_emit_get_fp(&emit)))
172 return false;
173
174 emit.key.binning_pass = false;
175 emit.dirty = dirty;
176 draw_impl(ctx, ctx->batch->draw, &emit);
177
178 /* and now binning pass: */
179 emit.key.binning_pass = true;
180 emit.dirty = dirty & ~(FD_DIRTY_BLEND);
181 emit.vp = NULL; /* we changed key so need to refetch vp */
182 emit.fp = NULL;
183 draw_impl(ctx, ctx->batch->binning, &emit);
184
185 return true;
186 }
187
188 void
fd3_draw_init(struct pipe_context * pctx)189 fd3_draw_init(struct pipe_context *pctx)
190 {
191 struct fd_context *ctx = fd_context(pctx);
192 ctx->draw_vbo = fd3_draw_vbo;
193 }
194