src/gallium/drivers/freedreno/a4xx/fd4_draw.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2014 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
  34 #include "freedreno_state.h"
  35 #include "freedreno_resource.h"
  36
  37 #include "fd4_draw.h"
  38 #include "fd4_context.h"
  39 #include "fd4_emit.h"
  40 #include "fd4_program.h"
  41 #include "fd4_format.h"
  42 #include "fd4_zsa.h"
  43
  44
  45 static void
  46 draw_impl(struct fd_context *ctx, struct fd_ringbuffer *ring,
  47                 struct fd4_emit *emit)
  48 {
  49         const struct pipe_draw_info *info = emit->info;
  50         enum pc_di_primtype primtype = ctx->primtypes[info->mode];
  51
  52         fd4_emit_state(ctx, ring, emit);
  53
  54         if (emit->dirty & (FD_DIRTY_VTXBUF | FD_DIRTY_VTXSTATE))
  55                 fd4_emit_vertex_bufs(ring, emit);
  56
  57         OUT_PKT0(ring, REG_A4XX_VFD_INDEX_OFFSET, 2);
  58         OUT_RING(ring, info->indexed ? info->index_bias : info->start); /* VFD_INDEX_OFFSET */
  59         OUT_RING(ring, info->start_instance);   /* ??? UNKNOWN_2209 */
  60
  61         OUT_PKT0(ring, REG_A4XX_PC_RESTART_INDEX, 1);
  62         OUT_RING(ring, info->primitive_restart ? /* PC_RESTART_INDEX */
  63                         info->restart_index : 0xffffffff);
  64
  65         /* points + psize -> spritelist: */
  66         if (ctx->rasterizer->point_size_per_vertex &&
  67                         fd4_emit_get_vp(emit)->writes_psize &&
  68                         (info->mode == PIPE_PRIM_POINTS))
  69                 primtype = DI_PT_POINTLIST_PSIZE;
  70
  71         fd4_draw_emit(ctx->batch, ring, primtype,
  72                         emit->key.binning_pass ? IGNORE_VISIBILITY : USE_VISIBILITY,
  73                         info);
  74 }
  75
  76 /* fixup dirty shader state in case some "unrelated" (from the state-
  77  * tracker's perspective) state change causes us to switch to a
  78  * different variant.
  79  */
  80 static void
  81 fixup_shader_state(struct fd_context *ctx, struct ir3_shader_key *key)
  82 {
  83         struct fd4_context *fd4_ctx = fd4_context(ctx);
  84         struct ir3_shader_key *last_key = &fd4_ctx->last_key;
  85
  86         if (!ir3_shader_key_equal(last_key, key)) {
  87                 if (last_key->has_per_samp || key->has_per_samp) {
  88                         if ((last_key->vsaturate_s != key->vsaturate_s) ||
  89                                         (last_key->vsaturate_t != key->vsaturate_t) ||
  90                                         (last_key->vsaturate_r != key->vsaturate_r) ||
  91                                         (last_key->vastc_srgb != key->vastc_srgb))
  92                                 ctx->dirty |= FD_SHADER_DIRTY_VP;
  93
  94                         if ((last_key->fsaturate_s != key->fsaturate_s) ||
  95                                         (last_key->fsaturate_t != key->fsaturate_t) ||
  96                                         (last_key->fsaturate_r != key->fsaturate_r) ||
  97                                         (last_key->fastc_srgb != key->fastc_srgb))
  98                                 ctx->dirty |= FD_SHADER_DIRTY_FP;
  99                 }
 100
 101                 if (last_key->vclamp_color != key->vclamp_color)
 102                         ctx->dirty |= FD_SHADER_DIRTY_VP;
 103
 104                 if (last_key->fclamp_color != key->fclamp_color)
 105                         ctx->dirty |= FD_SHADER_DIRTY_FP;
 106
 107                 if (last_key->color_two_side != key->color_two_side)
 108                         ctx->dirty |= FD_SHADER_DIRTY_FP;
 109
 110                 if (last_key->half_precision != key->half_precision)
 111                         ctx->dirty |= FD_SHADER_DIRTY_FP;
 112
 113                 if (last_key->rasterflat != key->rasterflat)
 114                         ctx->dirty |= FD_SHADER_DIRTY_FP;
 115
 116                 if (last_key->ucp_enables != key->ucp_enables)
 117                         ctx->dirty |= FD_SHADER_DIRTY_FP | FD_SHADER_DIRTY_VP;
 118
 119                 fd4_ctx->last_key = *key;
 120         }
 121 }
 122
 123 static bool
 124 fd4_draw_vbo(struct fd_context *ctx, const struct pipe_draw_info *info)
 125 {
 126         struct fd4_context *fd4_ctx = fd4_context(ctx);
 127         struct fd4_emit emit = {
 128                 .debug = &ctx->debug,
 129                 .vtx  = &ctx->vtx,
 130                 .prog = &ctx->prog,
 131                 .info = info,
 132                 .key = {
 133                         .color_two_side = ctx->rasterizer->light_twoside,
 134                         .vclamp_color = ctx->rasterizer->clamp_vertex_color,
 135                         .fclamp_color = ctx->rasterizer->clamp_fragment_color,
 136                         .rasterflat = ctx->rasterizer->flatshade,
 137                         .half_precision = ctx->in_blit &&
 138                                         fd_half_precision(&ctx->batch->framebuffer),
 139                         .ucp_enables = ctx->rasterizer->clip_plane_enable,
 140                         .has_per_samp = (fd4_ctx->fsaturate || fd4_ctx->vsaturate ||
 141                                         fd4_ctx->fastc_srgb || fd4_ctx->vastc_srgb),
 142                         .vsaturate_s = fd4_ctx->vsaturate_s,
 143                         .vsaturate_t = fd4_ctx->vsaturate_t,
 144                         .vsaturate_r = fd4_ctx->vsaturate_r,
 145                         .fsaturate_s = fd4_ctx->fsaturate_s,
 146                         .fsaturate_t = fd4_ctx->fsaturate_t,
 147                         .fsaturate_r = fd4_ctx->fsaturate_r,
 148                         .vastc_srgb = fd4_ctx->vastc_srgb,
 149                         .fastc_srgb = fd4_ctx->fastc_srgb,
 150                 },
 151                 .rasterflat = ctx->rasterizer->flatshade,
 152                 .sprite_coord_enable = ctx->rasterizer->sprite_coord_enable,
 153                 .sprite_coord_mode = ctx->rasterizer->sprite_coord_mode,
 154         };
 155
 156         fixup_shader_state(ctx, &emit.key);
 157
 158         unsigned dirty = ctx->dirty;
 159
 160         /* do regular pass first, since that is more likely to fail compiling: */
 161
 162         if (!(fd4_emit_get_vp(&emit) && fd4_emit_get_fp(&emit)))
 163                 return false;
 164
 165         emit.key.binning_pass = false;
 166         emit.dirty = dirty;
 167
 168         struct fd_ringbuffer *ring = ctx->batch->draw;
 169
 170         if (ctx->rasterizer->rasterizer_discard) {
 171                 fd_wfi(ctx->batch, ring);
 172                 OUT_PKT3(ring, CP_REG_RMW, 3);
 173                 OUT_RING(ring, REG_A4XX_RB_RENDER_CONTROL);
 174                 OUT_RING(ring, ~A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 175                 OUT_RING(ring, A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 176         }
 177
 178         draw_impl(ctx, ctx->batch->draw, &emit);
 179
 180         if (ctx->rasterizer->rasterizer_discard) {
 181                 fd_wfi(ctx->batch, ring);
 182                 OUT_PKT3(ring, CP_REG_RMW, 3);
 183                 OUT_RING(ring, REG_A4XX_RB_RENDER_CONTROL);
 184                 OUT_RING(ring, ~A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 185                 OUT_RING(ring, 0);
 186         }
 187
 188         /* and now binning pass: */
 189         emit.key.binning_pass = true;
 190         emit.dirty = dirty & ~(FD_DIRTY_BLEND);
 191         emit.vp = NULL;   /* we changed key so need to refetch vp */
 192         emit.fp = NULL;
 193         draw_impl(ctx, ctx->batch->binning, &emit);
 194
 195         return true;
 196 }
 197
 198 void
 199 fd4_draw_init(struct pipe_context *pctx)
 200 {
 201         struct fd_context *ctx = fd_context(pctx);
 202         ctx->draw_vbo = fd4_draw_vbo;
 203 }