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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3770 | Serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright 2010 Luca Barbieri |
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| 4 | * |
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| 5 | * Permission is hereby granted, free of charge, to any person obtaining |
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| 6 | * a copy of this software and associated documentation files (the |
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| 7 | * "Software"), to deal in the Software without restriction, including |
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| 8 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 9 | * distribute, sublicense, and/or sell copies of the Software, and to |
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| 10 | * permit persons to whom the Software is furnished to do so, subject to |
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| 11 | * the following conditions: |
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| 12 | * |
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| 13 | * The above copyright notice and this permission notice (including the |
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| 14 | * next paragraph) shall be included in all copies or substantial |
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| 15 | * portions of the Software. |
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| 16 | * |
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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| 18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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| 20 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
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| 21 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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| 22 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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| 23 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 24 | * |
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| 25 | **************************************************************************/ |
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| 26 | |||
| 27 | #include "util/u_staging.h" |
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| 28 | #include "pipe/p_context.h" |
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| 29 | #include "util/u_memory.h" |
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| 30 | #include "util/u_inlines.h" |
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| 31 | |||
| 32 | static void |
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| 33 | util_staging_resource_template(struct pipe_resource *pt, unsigned width, unsigned height, unsigned depth, struct pipe_resource *template) |
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| 34 | { |
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| 35 | memset(template, 0, sizeof(struct pipe_resource)); |
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| 36 | if(pt->target != PIPE_BUFFER && depth <= 1) |
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| 37 | template->target = PIPE_TEXTURE_RECT; |
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| 38 | else |
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| 39 | template->target = pt->target; |
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| 40 | template->format = pt->format; |
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| 41 | template->width0 = width; |
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| 42 | template->height0 = height; |
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| 43 | template->depth0 = depth; |
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| 44 | template->array_size = 1; |
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| 45 | template->last_level = 0; |
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| 46 | template->nr_samples = pt->nr_samples; |
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| 47 | template->bind = 0; |
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| 48 | template->usage = PIPE_USAGE_STAGING; |
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| 49 | template->flags = 0; |
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| 50 | } |
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| 51 | |||
| 52 | struct util_staging_transfer * |
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| 53 | util_staging_transfer_init(struct pipe_context *pipe, |
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| 54 | struct pipe_resource *pt, |
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| 55 | unsigned level, |
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| 56 | unsigned usage, |
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| 57 | const struct pipe_box *box, |
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| 58 | boolean direct, struct util_staging_transfer *tx) |
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| 59 | { |
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| 60 | struct pipe_screen *pscreen = pipe->screen; |
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| 61 | |||
| 62 | struct pipe_resource staging_resource_template; |
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| 63 | |||
| 64 | pipe_resource_reference(&tx->base.resource, pt); |
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| 65 | tx->base.level = level; |
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| 66 | tx->base.usage = usage; |
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| 67 | tx->base.box = *box; |
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| 68 | |||
| 69 | if (direct) |
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| 70 | { |
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| 71 | tx->staging_resource = pt; |
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| 72 | return tx; |
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| 73 | } |
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| 74 | |||
| 75 | util_staging_resource_template(pt, box->width, box->height, box->depth, &staging_resource_template); |
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| 76 | tx->staging_resource = pscreen->resource_create(pscreen, &staging_resource_template); |
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| 77 | if (!tx->staging_resource) |
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| 78 | { |
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| 79 | pipe_resource_reference(&tx->base.resource, NULL); |
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| 80 | FREE(tx); |
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| 81 | return NULL; |
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| 82 | } |
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| 83 | |||
| 84 | if (usage & PIPE_TRANSFER_READ) |
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| 85 | { |
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| 86 | /* XXX this looks wrong dst is always the same but looping over src z? */ |
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| 87 | int zi; |
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| 88 | struct pipe_box sbox; |
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| 89 | sbox.x = box->x; |
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| 90 | sbox.y = box->y; |
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| 91 | sbox.z = box->z; |
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| 92 | sbox.width = box->width; |
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| 93 | sbox.height = box->height; |
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| 94 | sbox.depth = 1; |
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| 95 | for(zi = 0; zi < box->depth; ++zi) { |
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| 96 | sbox.z = sbox.z + zi; |
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| 97 | pipe->resource_copy_region(pipe, tx->staging_resource, 0, 0, 0, 0, |
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| 98 | tx->base.resource, level, &sbox); |
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| 99 | } |
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| 100 | } |
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| 101 | |||
| 102 | return tx; |
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| 103 | } |
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| 104 | |||
| 105 | void |
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| 106 | util_staging_transfer_destroy(struct pipe_context *pipe, struct pipe_transfer *ptx) |
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| 107 | { |
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| 108 | struct util_staging_transfer *tx = (struct util_staging_transfer *)ptx; |
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| 109 | |||
| 110 | if (tx->staging_resource != tx->base.resource) |
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| 111 | { |
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| 112 | if(tx->base.usage & PIPE_TRANSFER_WRITE) { |
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| 113 | /* XXX this looks wrong src is always the same but looping over dst z? */ |
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| 114 | int zi; |
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| 115 | struct pipe_box sbox; |
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| 116 | sbox.x = 0; |
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| 117 | sbox.y = 0; |
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| 118 | sbox.z = 0; |
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| 119 | sbox.width = tx->base.box.width; |
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| 120 | sbox.height = tx->base.box.height; |
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| 121 | sbox.depth = 1; |
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| 122 | for(zi = 0; zi < tx->base.box.depth; ++zi) |
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| 123 | pipe->resource_copy_region(pipe, tx->base.resource, tx->base.level, tx->base.box.x, tx->base.box.y, tx->base.box.z + zi, |
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| 124 | tx->staging_resource, 0, &sbox); |
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| 125 | } |
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| 126 | |||
| 127 | pipe_resource_reference(&tx->staging_resource, NULL); |
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| 128 | } |
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| 129 | |||
| 130 | pipe_resource_reference(&ptx->resource, NULL); |
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| 131 | FREE(ptx); |
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| 132 | } |