src/gallium/auxiliary/util/u_helpers.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2012 Marek Olšák <maraeo@gmail.com>
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL THE AUTHORS AND/OR THEIR SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "util/u_helpers.h"
  29 #include "util/u_inlines.h"
  30 #include "util/u_upload_mgr.h"
  31 #include <inttypes.h>
  32
  33 /**
  34  * This function is used to copy an array of pipe_vertex_buffer structures,
  35  * while properly referencing the pipe_vertex_buffer::buffer member.
  36  *
  37  * enabled_buffers is updated such that the bits corresponding to the indices
  38  * of disabled buffers are set to 0 and the enabled ones are set to 1.
  39  *
  40  * \sa util_copy_framebuffer_state
  41  */
  42 void util_set_vertex_buffers_mask(struct pipe_vertex_buffer *dst,
  43                                   uint32_t *enabled_buffers,
  44                                   const struct pipe_vertex_buffer *src,
  45                                   unsigned start_slot, unsigned count)
  46 {
  47    unsigned i;
  48    uint32_t bitmask = 0;
  49
  50    dst += start_slot;
  51
  52    if (src) {
  53       for (i = 0; i < count; i++) {
  54          if (src[i].buffer.resource)
  55             bitmask |= 1 << i;
  56
  57          pipe_vertex_buffer_unreference(&dst[i]);
  58
  59          if (!src[i].is_user_buffer)
  60             pipe_resource_reference(&dst[i].buffer.resource, src[i].buffer.resource);
  61       }
  62
  63       /* Copy over the other members of pipe_vertex_buffer. */
  64       memcpy(dst, src, count * sizeof(struct pipe_vertex_buffer));
  65
  66       *enabled_buffers &= ~(((1ull << count) - 1) << start_slot);
  67       *enabled_buffers |= bitmask << start_slot;
  68    }
  69    else {
  70       /* Unreference the buffers. */
  71       for (i = 0; i < count; i++)
  72          pipe_vertex_buffer_unreference(&dst[i]);
  73
  74       *enabled_buffers &= ~(((1ull << count) - 1) << start_slot);
  75    }
  76 }
  77
  78 /**
  79  * Same as util_set_vertex_buffers_mask, but it only returns the number
  80  * of bound buffers.
  81  */
  82 void util_set_vertex_buffers_count(struct pipe_vertex_buffer *dst,
  83                                    unsigned *dst_count,
  84                                    const struct pipe_vertex_buffer *src,
  85                                    unsigned start_slot, unsigned count)
  86 {
  87    unsigned i;
  88    uint32_t enabled_buffers = 0;
  89
  90    for (i = 0; i < *dst_count; i++) {
  91       if (dst[i].buffer.resource)
  92          enabled_buffers |= (1ull << i);
  93    }
  94
  95    util_set_vertex_buffers_mask(dst, &enabled_buffers, src, start_slot,
  96                                 count);
  97
  98    *dst_count = util_last_bit(enabled_buffers);
  99 }
 100
 101
 102 void
 103 util_set_index_buffer(struct pipe_index_buffer *dst,
 104                       const struct pipe_index_buffer *src)
 105 {
 106    if (src) {
 107       pipe_resource_reference(&dst->buffer, src->buffer);
 108       memcpy(dst, src, sizeof(*dst));
 109    }
 110    else {
 111       pipe_resource_reference(&dst->buffer, NULL);
 112       memset(dst, 0, sizeof(*dst));
 113    }
 114 }
 115
 116 /**
 117  * Given a user index buffer, save the structure to "saved", and upload it.
 118  */
 119 bool
 120 util_save_and_upload_index_buffer(struct pipe_context *pipe,
 121                                   const struct pipe_draw_info *info,
 122                                   const struct pipe_index_buffer *ib,
 123                                   struct pipe_index_buffer *out_saved)
 124 {
 125    struct pipe_index_buffer new_ib = {0};
 126    unsigned start_offset = info->start * ib->index_size;
 127
 128    u_upload_data(pipe->stream_uploader, start_offset,
 129                  info->count * ib->index_size, 4,
 130                  (char*)ib->user_buffer + start_offset,
 131                  &new_ib.offset, &new_ib.buffer);
 132    if (!new_ib.buffer)
 133       return false;
 134    u_upload_unmap(pipe->stream_uploader);
 135
 136    new_ib.offset -= start_offset;
 137    new_ib.index_size = ib->index_size;
 138
 139    util_set_index_buffer(out_saved, ib);
 140    pipe->set_index_buffer(pipe, &new_ib);
 141    pipe_resource_reference(&new_ib.buffer, NULL);
 142    return true;
 143 }
 144
 145 struct pipe_query *
 146 util_begin_pipestat_query(struct pipe_context *ctx)
 147 {
 148    struct pipe_query *q =
 149       ctx->create_query(ctx, PIPE_QUERY_PIPELINE_STATISTICS, 0);
 150    if (!q)
 151       return NULL;
 152
 153    ctx->begin_query(ctx, q);
 154    return q;
 155 }
 156
 157 void
 158 util_end_pipestat_query(struct pipe_context *ctx, struct pipe_query *q,
 159                         FILE *f)
 160 {
 161    static unsigned counter;
 162    struct pipe_query_data_pipeline_statistics stats;
 163
 164    ctx->end_query(ctx, q);
 165    ctx->get_query_result(ctx, q, true, (void*)&stats);
 166    ctx->destroy_query(ctx, q);
 167
 168    fprintf(f,
 169            "Draw call %u:\n"
 170            "    ia_vertices    = %"PRIu64"\n"
 171            "    ia_primitives  = %"PRIu64"\n"
 172            "    vs_invocations = %"PRIu64"\n"
 173            "    gs_invocations = %"PRIu64"\n"
 174            "    gs_primitives  = %"PRIu64"\n"
 175            "    c_invocations  = %"PRIu64"\n"
 176            "    c_primitives   = %"PRIu64"\n"
 177            "    ps_invocations = %"PRIu64"\n"
 178            "    hs_invocations = %"PRIu64"\n"
 179            "    ds_invocations = %"PRIu64"\n"
 180            "    cs_invocations = %"PRIu64"\n",
 181            p_atomic_inc_return(&counter),
 182            stats.ia_vertices,
 183            stats.ia_primitives,
 184            stats.vs_invocations,
 185            stats.gs_invocations,
 186            stats.gs_primitives,
 187            stats.c_invocations,
 188            stats.c_primitives,
 189            stats.ps_invocations,
 190            stats.hs_invocations,
 191            stats.ds_invocations,
 192            stats.cs_invocations);
 193 }