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 (ir3_shader_key_changes_fs(last_key, key)) {
  88                         ctx->dirty_shader[PIPE_SHADER_FRAGMENT] |= FD_DIRTY_SHADER_PROG;
  89                         ctx->dirty |= FD_DIRTY_PROG;
  90                 }
  91
  92                 if (ir3_shader_key_changes_vs(last_key, key)) {
  93                         ctx->dirty_shader[PIPE_SHADER_VERTEX] |= FD_DIRTY_SHADER_PROG;
  94                         ctx->dirty |= FD_DIRTY_PROG;
  95                 }
  96
  97                 fd4_ctx->last_key = *key;
  98         }
  99 }
 100
 101 static bool
 102 fd4_draw_vbo(struct fd_context *ctx, const struct pipe_draw_info *info)
 103 {
 104         struct fd4_context *fd4_ctx = fd4_context(ctx);
 105         struct fd4_emit emit = {
 106                 .debug = &ctx->debug,
 107                 .vtx  = &ctx->vtx,
 108                 .prog = &ctx->prog,
 109                 .info = info,
 110                 .key = {
 111                         .color_two_side = ctx->rasterizer->light_twoside,
 112                         .vclamp_color = ctx->rasterizer->clamp_vertex_color,
 113                         .fclamp_color = ctx->rasterizer->clamp_fragment_color,
 114                         .rasterflat = ctx->rasterizer->flatshade,
 115                         .half_precision = ctx->in_blit &&
 116                                         fd_half_precision(&ctx->batch->framebuffer),
 117                         .ucp_enables = ctx->rasterizer->clip_plane_enable,
 118                         .has_per_samp = (fd4_ctx->fsaturate || fd4_ctx->vsaturate ||
 119                                         fd4_ctx->fastc_srgb || fd4_ctx->vastc_srgb),
 120                         .vsaturate_s = fd4_ctx->vsaturate_s,
 121                         .vsaturate_t = fd4_ctx->vsaturate_t,
 122                         .vsaturate_r = fd4_ctx->vsaturate_r,
 123                         .fsaturate_s = fd4_ctx->fsaturate_s,
 124                         .fsaturate_t = fd4_ctx->fsaturate_t,
 125                         .fsaturate_r = fd4_ctx->fsaturate_r,
 126                         .vastc_srgb = fd4_ctx->vastc_srgb,
 127                         .fastc_srgb = fd4_ctx->fastc_srgb,
 128                 },
 129                 .rasterflat = ctx->rasterizer->flatshade,
 130                 .sprite_coord_enable = ctx->rasterizer->sprite_coord_enable,
 131                 .sprite_coord_mode = ctx->rasterizer->sprite_coord_mode,
 132         };
 133
 134         fixup_shader_state(ctx, &emit.key);
 135
 136         enum fd_dirty_3d_state dirty = ctx->dirty;
 137
 138         /* do regular pass first, since that is more likely to fail compiling: */
 139
 140         if (!(fd4_emit_get_vp(&emit) && fd4_emit_get_fp(&emit)))
 141                 return false;
 142
 143         emit.key.binning_pass = false;
 144         emit.dirty = dirty;
 145
 146         struct fd_ringbuffer *ring = ctx->batch->draw;
 147
 148         if (ctx->rasterizer->rasterizer_discard) {
 149                 fd_wfi(ctx->batch, ring);
 150                 OUT_PKT3(ring, CP_REG_RMW, 3);
 151                 OUT_RING(ring, REG_A4XX_RB_RENDER_CONTROL);
 152                 OUT_RING(ring, ~A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 153                 OUT_RING(ring, A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 154         }
 155
 156         draw_impl(ctx, ctx->batch->draw, &emit);
 157
 158         if (ctx->rasterizer->rasterizer_discard) {
 159                 fd_wfi(ctx->batch, ring);
 160                 OUT_PKT3(ring, CP_REG_RMW, 3);
 161                 OUT_RING(ring, REG_A4XX_RB_RENDER_CONTROL);
 162                 OUT_RING(ring, ~A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 163                 OUT_RING(ring, 0);
 164         }
 165
 166         /* and now binning pass: */
 167         emit.key.binning_pass = true;
 168         emit.dirty = dirty & ~(FD_DIRTY_BLEND);
 169         emit.vp = NULL;   /* we changed key so need to refetch vp */
 170         emit.fp = NULL;
 171         draw_impl(ctx, ctx->batch->binning, &emit);
 172
 173         fd_context_all_clean(ctx);
 174
 175         return true;
 176 }
 177
 178 void
 179 fd4_draw_init(struct pipe_context *pctx)
 180 {
 181         struct fd_context *ctx = fd_context(pctx);
 182         ctx->draw_vbo = fd4_draw_vbo;
 183 }