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dawn_native: Indirect draw/dispatch

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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>
This commit is contained in:
Idan Raiter
2019-06-07 17:32:37 +00:00
committed by Commit Bot service account
parent de1ac9fd7b
commit 7eb6be186b
21 changed files with 1003 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;