src/gallium/drivers/freedreno/freedreno_draw.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 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_draw.h"
  36 #include "freedreno_context.h"
  37 #include "freedreno_state.h"
  38 #include "freedreno_resource.h"
  39 #include "freedreno_util.h"
  40
  41
  42 static enum pc_di_primtype
  43 mode2primtype(unsigned mode)
  44 {
  45         switch (mode) {
  46         case PIPE_PRIM_POINTS:         return DI_PT_POINTLIST;
  47         case PIPE_PRIM_LINES:          return DI_PT_LINELIST;
  48         case PIPE_PRIM_LINE_STRIP:     return DI_PT_LINESTRIP;
  49         case PIPE_PRIM_TRIANGLES:      return DI_PT_TRILIST;
  50         case PIPE_PRIM_TRIANGLE_STRIP: return DI_PT_TRISTRIP;
  51         case PIPE_PRIM_TRIANGLE_FAN:   return DI_PT_TRIFAN;
  52         case PIPE_PRIM_QUADS:          return DI_PT_QUADLIST;
  53         case PIPE_PRIM_QUAD_STRIP:     return DI_PT_QUADSTRIP;
  54         case PIPE_PRIM_POLYGON:        return DI_PT_POLYGON;
  55         }
  56         DBG("unsupported mode: (%s) %d", u_prim_name(mode), mode);
  57         assert(0);
  58         return DI_PT_NONE;
  59 }
  60
  61 static enum pc_di_index_size
  62 size2indextype(unsigned index_size)
  63 {
  64         switch (index_size) {
  65         case 1: return INDEX_SIZE_8_BIT;
  66         case 2: return INDEX_SIZE_16_BIT;
  67         case 4: return INDEX_SIZE_32_BIT;
  68         }
  69         DBG("unsupported index size: %d", index_size);
  70         assert(0);
  71         return INDEX_SIZE_IGN;
  72 }
  73
  74 /* this is same for a2xx/a3xx, so split into helper: */
  75 void
  76 fd_draw_emit(struct fd_context *ctx, const struct pipe_draw_info *info)
  77 {
  78         struct pipe_index_buffer *idx = &ctx->indexbuf;
  79         struct fd_bo *idx_bo = NULL;
  80         enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
  81         enum pc_di_src_sel src_sel;
  82         uint32_t idx_size, idx_offset;
  83
  84         if (info->indexed) {
  85                 assert(!idx->user_buffer);
  86
  87                 idx_bo = fd_resource(idx->buffer)->bo;
  88                 idx_type = size2indextype(idx->index_size);
  89                 idx_size = idx->index_size * info->count;
  90                 idx_offset = idx->offset;
  91                 src_sel = DI_SRC_SEL_DMA;
  92         } else {
  93                 idx_bo = NULL;
  94                 idx_type = INDEX_SIZE_IGN;
  95                 idx_size = 0;
  96                 idx_offset = 0;
  97                 src_sel = DI_SRC_SEL_AUTO_INDEX;
  98         }
  99
 100         fd_draw(ctx, mode2primtype(info->mode), src_sel, info->count,
 101                         idx_type, idx_size, idx_offset, idx_bo);
 102 }
 103
 104 static void
 105 fd_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
 106 {
 107         struct fd_context *ctx = fd_context(pctx);
 108         struct pipe_framebuffer_state *pfb = &ctx->framebuffer;
 109         struct pipe_scissor_state *scissor = fd_context_get_scissor(ctx);
 110         unsigned i, buffers = 0;
 111
 112         /* if we supported transform feedback, we'd have to disable this: */
 113         if (((scissor->maxx - scissor->minx) *
 114                         (scissor->maxy - scissor->miny)) == 0) {
 115                 return;
 116         }
 117
 118         ctx->needs_flush = true;
 119
 120         /*
 121          * Figure out the buffers/features we need:
 122          */
 123
 124         if (fd_depth_enabled(ctx)) {
 125                 buffers |= FD_BUFFER_DEPTH;
 126                 fd_resource(pfb->zsbuf->texture)->dirty = true;
 127                 ctx->gmem_reason |= FD_GMEM_DEPTH_ENABLED;
 128         }
 129
 130         if (fd_stencil_enabled(ctx)) {
 131                 buffers |= FD_BUFFER_STENCIL;
 132                 fd_resource(pfb->zsbuf->texture)->dirty = true;
 133                 ctx->gmem_reason |= FD_GMEM_STENCIL_ENABLED;
 134         }
 135
 136         if (fd_logicop_enabled(ctx))
 137                 ctx->gmem_reason |= FD_GMEM_LOGICOP_ENABLED;
 138
 139         for (i = 0; i < pfb->nr_cbufs; i++) {
 140                 struct pipe_resource *surf = pfb->cbufs[i]->texture;
 141
 142                 fd_resource(surf)->dirty = true;
 143                 buffers |= FD_BUFFER_COLOR;
 144
 145                 if (surf->nr_samples > 1)
 146                         ctx->gmem_reason |= FD_GMEM_MSAA_ENABLED;
 147
 148                 if (fd_blend_enabled(ctx, i))
 149                         ctx->gmem_reason |= FD_GMEM_BLEND_ENABLED;
 150         }
 151
 152         ctx->num_draws++;
 153
 154         /* any buffers that haven't been cleared, we need to restore: */
 155         ctx->restore |= buffers & (FD_BUFFER_ALL & ~ctx->cleared);
 156         /* and any buffers used, need to be resolved: */
 157         ctx->resolve |= buffers;
 158
 159         ctx->draw(ctx, info);
 160 }
 161
 162 /* TODO figure out how to make better use of existing state mechanism
 163  * for clear (and possibly gmem->mem / mem->gmem) so we can (a) keep
 164  * track of what state really actually changes, and (b) reduce the code
 165  * in the a2xx/a3xx parts.
 166  */
 167
 168 static void
 169 fd_clear(struct pipe_context *pctx, unsigned buffers,
 170                 const union pipe_color_union *color, double depth, unsigned stencil)
 171 {
 172         struct fd_context *ctx = fd_context(pctx);
 173         struct pipe_framebuffer_state *pfb = &ctx->framebuffer;
 174
 175         ctx->cleared |= buffers;
 176         ctx->resolve |= buffers;
 177         ctx->needs_flush = true;
 178
 179         if (buffers & PIPE_CLEAR_COLOR)
 180                 fd_resource(pfb->cbufs[0]->texture)->dirty = true;
 181
 182         if (buffers & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) {
 183                 fd_resource(pfb->zsbuf->texture)->dirty = true;
 184                 ctx->gmem_reason |= FD_GMEM_CLEARS_DEPTH_STENCIL;
 185         }
 186
 187         DBG("%x depth=%f, stencil=%u (%s/%s)", buffers, depth, stencil,
 188                 util_format_short_name(pipe_surface_format(pfb->cbufs[0])),
 189                 util_format_short_name(pipe_surface_format(pfb->zsbuf)));
 190
 191         ctx->clear(ctx, buffers, color, depth, stencil);
 192
 193         ctx->dirty |= FD_DIRTY_ZSA |
 194                         FD_DIRTY_RASTERIZER |
 195                         FD_DIRTY_SAMPLE_MASK |
 196                         FD_DIRTY_PROG |
 197                         FD_DIRTY_CONSTBUF |
 198                         FD_DIRTY_BLEND;
 199
 200         if (fd_mesa_debug & FD_DBG_DCLEAR)
 201                 ctx->dirty = 0xffffffff;
 202 }
 203
 204 static void
 205 fd_clear_render_target(struct pipe_context *pctx, struct pipe_surface *ps,
 206                 const union pipe_color_union *color,
 207                 unsigned x, unsigned y, unsigned w, unsigned h)
 208 {
 209         DBG("TODO: x=%u, y=%u, w=%u, h=%u", x, y, w, h);
 210 }
 211
 212 static void
 213 fd_clear_depth_stencil(struct pipe_context *pctx, struct pipe_surface *ps,
 214                 unsigned buffers, double depth, unsigned stencil,
 215                 unsigned x, unsigned y, unsigned w, unsigned h)
 216 {
 217         DBG("TODO: buffers=%u, depth=%f, stencil=%u, x=%u, y=%u, w=%u, h=%u",
 218                         buffers, depth, stencil, x, y, w, h);
 219 }
 220
 221 void
 222 fd_draw_init(struct pipe_context *pctx)
 223 {
 224         pctx->draw_vbo = fd_draw_vbo;
 225         pctx->clear = fd_clear;
 226         pctx->clear_render_target = fd_clear_render_target;
 227         pctx->clear_depth_stencil = fd_clear_depth_stencil;
 228 }