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Reland "dawn_native: Indirect draw/dispatch"

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This is a reland of 7eb6be186b
Fixes casting issue on 32 bit machines

Original change's description:
> dawn_native: Indirect draw/dispatch
>
> Adds indirect draw and dispatch for all backends (without validation).
>
> Tests for opengl negative offset are skipped since there is no easy
> way to add the index buffer offset. Current idea is to use a compute
> shader to modify the indirect draw buffer.
>
> Change-Id: I1d3eec7c699b211423f4b911769cca17bfbcd045
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/7481
> Commit-Queue: Idan Raiter <idanr@google.com>
> Reviewed-by: Kai Ninomiya <kainino@chromium.org>

Change-Id: Id28c5658ee18ec5c030f721fb44d9f11ebe21ff9
Bug:dawn:54,chromium:972358
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/7961
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Idan Raiter <idanr@google.com>
This commit is contained in:
Idan Raiter
2019-06-10 20:56:27 +00:00
committed by Commit Bot service account
parent 9d4d3eac14
commit 05f7ad5ac8
21 changed files with 1002 additions and 1 deletions
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4
src/common/Constants.h
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@@ -35,6 +35,10 @@ static constexpr uint32_t kMaxColorAttachments = 4u;
static constexpr uint32_t kTextureRowPitchAlignment = 256u;
// Dynamic buffer offsets require offset to be divisible by 256
static constexpr uint64_t kMinDynamicBufferOffsetAlignment = 256u;
// Indirect command sizes
static constexpr uint64_t kDispatchIndirectSize = 3 * sizeof(uint32_t);
static constexpr uint64_t kDrawIndirectSize = 4 * sizeof(uint32_t);
static constexpr uint64_t kDrawIndexedIndirectSize = 5 * sizeof(uint32_t);
// Non spec defined constants.
static constexpr float kLodMin = 0.0;