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

   1 /*
   2  * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #include "pipe/p_state.h"
  28 #include "util/u_string.h"
  29 #include "util/u_memory.h"
  30 #include "util/u_prim.h"
  31
  32 #include "freedreno_state.h"
  33 #include "freedreno_resource.h"
  34
  35 #include "fd4_draw.h"
  36 #include "fd4_context.h"
  37 #include "fd4_emit.h"
  38 #include "fd4_program.h"
  39 #include "fd4_format.h"
  40 #include "fd4_zsa.h"
  41
  42
  43 static void
  44 draw_impl(struct fd_context *ctx, struct fd_ringbuffer *ring,
  45                 struct fd4_emit *emit, unsigned index_offset)
  46 {
  47         const struct pipe_draw_info *info = emit->info;
  48         enum pc_di_primtype primtype = ctx->primtypes[info->mode];
  49
  50         fd4_emit_state(ctx, ring, emit);
  51
  52         if (emit->dirty & (FD_DIRTY_VTXBUF | FD_DIRTY_VTXSTATE))
  53                 fd4_emit_vertex_bufs(ring, emit);
  54
  55         OUT_PKT0(ring, REG_A4XX_VFD_INDEX_OFFSET, 2);
  56         OUT_RING(ring, info->index_size ? info->index_bias : info->start); /* VFD_INDEX_OFFSET */
  57         OUT_RING(ring, info->start_instance);   /* ??? UNKNOWN_2209 */
  58
  59         OUT_PKT0(ring, REG_A4XX_PC_RESTART_INDEX, 1);
  60         OUT_RING(ring, info->primitive_restart ? /* PC_RESTART_INDEX */
  61                         info->restart_index : 0xffffffff);
  62
  63         /* points + psize -> spritelist: */
  64         if (ctx->rasterizer->point_size_per_vertex &&
  65                         fd4_emit_get_vp(emit)->writes_psize &&
  66                         (info->mode == PIPE_PRIM_POINTS))
  67                 primtype = DI_PT_POINTLIST_PSIZE;
  68
  69         fd4_draw_emit(ctx->batch, ring, primtype,
  70                         emit->binning_pass ? IGNORE_VISIBILITY : USE_VISIBILITY,
  71                         info, index_offset);
  72 }
  73
  74 /* fixup dirty shader state in case some "unrelated" (from the state-
  75  * tracker's perspective) state change causes us to switch to a
  76  * different variant.
  77  */
  78 static void
  79 fixup_shader_state(struct fd_context *ctx, struct ir3_shader_key *key)
  80 {
  81         struct fd4_context *fd4_ctx = fd4_context(ctx);
  82         struct ir3_shader_key *last_key = &fd4_ctx->last_key;
  83
  84         if (!ir3_shader_key_equal(last_key, key)) {
  85                 if (ir3_shader_key_changes_fs(last_key, key)) {
  86                         ctx->dirty_shader[PIPE_SHADER_FRAGMENT] |= FD_DIRTY_SHADER_PROG;
  87                         ctx->dirty |= FD_DIRTY_PROG;
  88                 }
  89
  90                 if (ir3_shader_key_changes_vs(last_key, key)) {
  91                         ctx->dirty_shader[PIPE_SHADER_VERTEX] |= FD_DIRTY_SHADER_PROG;
  92                         ctx->dirty |= FD_DIRTY_PROG;
  93                 }
  94
  95                 fd4_ctx->last_key = *key;
  96         }
  97 }
  98
  99 static bool
 100 fd4_draw_vbo(struct fd_context *ctx, const struct pipe_draw_info *info,
 101              unsigned index_offset)
 102 {
 103         struct fd4_context *fd4_ctx = fd4_context(ctx);
 104         struct fd4_emit emit = {
 105                 .debug = &ctx->debug,
 106                 .vtx  = &ctx->vtx,
 107                 .prog = &ctx->prog,
 108                 .info = info,
 109                 .key = {
 110                         .color_two_side = ctx->rasterizer->light_twoside,
 111                         .vclamp_color = ctx->rasterizer->clamp_vertex_color,
 112                         .fclamp_color = ctx->rasterizer->clamp_fragment_color,
 113                         .rasterflat = ctx->rasterizer->flatshade,
 114                         .ucp_enables = ctx->rasterizer->clip_plane_enable,
 115                         .has_per_samp = (fd4_ctx->fsaturate || fd4_ctx->vsaturate ||
 116                                         fd4_ctx->fastc_srgb || fd4_ctx->vastc_srgb),
 117                         .vsaturate_s = fd4_ctx->vsaturate_s,
 118                         .vsaturate_t = fd4_ctx->vsaturate_t,
 119                         .vsaturate_r = fd4_ctx->vsaturate_r,
 120                         .fsaturate_s = fd4_ctx->fsaturate_s,
 121                         .fsaturate_t = fd4_ctx->fsaturate_t,
 122                         .fsaturate_r = fd4_ctx->fsaturate_r,
 123                         .vastc_srgb = fd4_ctx->vastc_srgb,
 124                         .fastc_srgb = fd4_ctx->fastc_srgb,
 125                 },
 126                 .rasterflat = ctx->rasterizer->flatshade,
 127                 .sprite_coord_enable = ctx->rasterizer->sprite_coord_enable,
 128                 .sprite_coord_mode = ctx->rasterizer->sprite_coord_mode,
 129         };
 130
 131         fixup_shader_state(ctx, &emit.key);
 132
 133         enum fd_dirty_3d_state dirty = ctx->dirty;
 134         const struct ir3_shader_variant *vp = fd4_emit_get_vp(&emit);
 135         const struct ir3_shader_variant *fp = fd4_emit_get_fp(&emit);
 136
 137         /* do regular pass first, since that is more likely to fail compiling: */
 138
 139         if (!vp || !fp)
 140                 return false;
 141
 142         ctx->stats.vs_regs += ir3_shader_halfregs(vp);
 143         ctx->stats.fs_regs += ir3_shader_halfregs(fp);
 144
 145         emit.binning_pass = false;
 146         emit.dirty = dirty;
 147
 148         struct fd_ringbuffer *ring = ctx->batch->draw;
 149
 150         if (ctx->rasterizer->rasterizer_discard) {
 151                 fd_wfi(ctx->batch, ring);
 152                 OUT_PKT3(ring, CP_REG_RMW, 3);
 153                 OUT_RING(ring, REG_A4XX_RB_RENDER_CONTROL);
 154                 OUT_RING(ring, ~A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 155                 OUT_RING(ring, A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 156         }
 157
 158         draw_impl(ctx, ctx->batch->draw, &emit, index_offset);
 159
 160         if (ctx->rasterizer->rasterizer_discard) {
 161                 fd_wfi(ctx->batch, ring);
 162                 OUT_PKT3(ring, CP_REG_RMW, 3);
 163                 OUT_RING(ring, REG_A4XX_RB_RENDER_CONTROL);
 164                 OUT_RING(ring, ~A4XX_RB_RENDER_CONTROL_DISABLE_COLOR_PIPE);
 165                 OUT_RING(ring, 0);
 166         }
 167
 168         /* and now binning pass: */
 169         emit.binning_pass = true;
 170         emit.dirty = dirty & ~(FD_DIRTY_BLEND);
 171         emit.vs = NULL;   /* we changed key so need to refetch vs */
 172         emit.fs = NULL;
 173         draw_impl(ctx, ctx->batch->binning, &emit, index_offset);
 174
 175         fd_context_all_clean(ctx);
 176
 177         return true;
 178 }
 179
 180 void
 181 fd4_draw_init(struct pipe_context *pctx)
 182 {
 183         struct fd_context *ctx = fd_context(pctx);
 184         ctx->draw_vbo = fd4_draw_vbo;
 185 }