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daaff1cc
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2017-07-05T18:03:26
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Set correct symbol ids when referring to GLSL built-ins
The symbol ids are fetched from the symbol table. A new utility
function is added to make this more convenient.
BUG=angleproject:1490
TEST=angle_unittests, angle_end2end_tests
Change-Id: I780430e3386f6599503d8290c568ca9bc9cad147
Reviewed-on: https://chromium-review.googlesource.com/559535
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
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c39a19aa
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2017-07-07T18:52:09
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Select viewport index in the GLSL/ESSL vertex shader
The patch enables viewport selection for multiview rendering in the
GLSL/ESSL vertex shader through the use of the GL_NV_viewport_array2
extension. The AST is modified only for GLSL and ESSL to include the
viewport selection expression after ViewID_OVR's initialization.
BUG=angleproject:2062
TEST=angle_unittests
Change-Id: Iee05bb5a4b687ed53ddbdd466f1572227b1f0cde
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ea39a223
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2017-07-06T12:47:59
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Simplify queueReplacement AST transform helper
queueReplacement is always called to replace the node that's currently
being visited in the traverser. The currently visited node can be
fetched automatically from the traversal path so it can be removed
from parameters of queueReplacement.
BUG=angleproject:2100
TEST=angle_unittests
Change-Id: I62ab6d1cd9c0d2b4c260af9f7c85bc156fb3f349
Reviewed-on: https://chromium-review.googlesource.com/562336
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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7ef89a42
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2017-07-05T14:23:06
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Expose ViewID_OVR impostor in the fragment shader
The OVR_multiview specification states that gl_ViewID_OVR is visible
at each pipeline stage. Previously to this patch the ViewID_OVR
impostor was declared only in the vertex shader and occurrences of
gl_ViewID_OVR in the fragment shader were not being handled. The
patch addresses the issue by declaring the ViewID_OVR variable as
a vertex output in the vertex shader and as a fragment input
in the fragment shader.
BUG=angleproject:2062
TEST=angle_unittests
Change-Id: I895953e81d3632d9bb873e8ac081fdf36f63f6b7
Reviewed-on: https://chromium-review.googlesource.com/559337
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
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cccf2b00
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2017-07-05T14:50:54
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Reorganize AST traversal utility code
Define TIntermTraverser and TIntermLValueTrackingTraverser in a
separate header file. hash() function is moved out from
TIntermTraverser as it is not related to the core functionality
of traversing and transforming ASTs.
Also reorganize some traversers to follow common conventions:
- Intermediate output is now in OutputTree.h/.cpp
- Max tree depth check is now in IsASTDepthBelowLimit.h/.cpp
BUG=angleproject:1490
TEST=angle_unittests
Change-Id: Id4968aa9d4e24d0c5bac90dc147fc9f310de0184
Reviewed-on: https://chromium-review.googlesource.com/559531
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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69056a1e
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2017-05-18T11:14:50
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Declare and initialize ViewID_OVR and InstanceID
The patch modifies the vertex shader's AST to declare and initialize
the global variables ViewID_OVR and InstanceID. Every occurrence of
gl_ViewID_OVR gets replaced by ViewID_OVR and initialized in main
with a value dependent on gl_InstanceID and the number of views.
To guarantee correct results for instanced rendering, each occurrence
of gl_InstanceID is replaced with InstanceID and initialized similarly.
BUG=angleproject:2062
TEST=angle_unittests
Change-Id: I48be688605b5af869bc370758e70ccc209ea4419
Reviewed-on: https://chromium-review.googlesource.com/548596
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
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