gl::Surface is now the pure abstract interface for egl::Surface, which
can be used by libGLESv2 without requiring typeinfo.

Bug chromium:732667
Bug swiftshader:31

Change-Id: I7d8a5892c5b6186541f84c3cf39e72ac1d6c613d
Reviewed-on: https://swiftshader-review.googlesource.com/10129Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Change-Id: Ia0ad3b10fc3e2617945fd0ca763f134ef7276fa4
Reviewed-on: https://swiftshader-review.googlesource.com/10088Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Change-Id: I07d3125d0d3b48f18b5752cdb8bd11869324bff0
Reviewed-on: https://swiftshader-review.googlesource.com/10068Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Bug swiftshader:63
Bug swiftshader:31

Change-Id: I59d08cbc8379e2c30984b9ec0ed4d49317633ce8
Reviewed-on: https://swiftshader-review.googlesource.com/10048Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

The egl::Image destructor synchronizes with the threads accessing that image.
However, that is too late because by the time ~Image runs, ImageImplementation
has already been destructed - concurrently with the other threads running, i.e.
data race. In particular, since those threads access virtual member functions on
Image, they may end up calling the base class ones (which are pure) instead of
the derived class ones.

So make sure to synchronize in ~ImageImplementation instead.

Bug: swiftshader:62

Change-Id: I91240d1dbb45dd126c65d86f9aecf77833b4488d
Reviewed-on: https://swiftshader-review.googlesource.com/10029Reviewed-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Recent versions of CMake omit adding Info.plist to the application
bundle due to an error attempting to parse a symbolic reference as a
CMake one. It is fixed by adding escape characters.
Also set CMAKE_MACOSX_RPATH to silence a warning.

Bug b/62380447

Change-Id: I6464fce7e3d4812d872343806138e44c269dd2da
Reviewed-on: https://swiftshader-review.googlesource.com/10008Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Entry functions need to have default visibility instead of protected
visibility to allow symbol preemption during linking (i.e. when not
using dlsym() to explicitly obtain pointers to entry functions). See:
https://bugs.llvm.org//show_bug.cgi?id=30960

Bug swiftshader:64

Change-Id: Ia2d3ae8fb4faec9a75d811c643e3164bfb7d0423
Reviewed-on: https://swiftshader-review.googlesource.com/10028Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

We're already exporting the entry functions (eglGetPlatformDisplayEXT(), etc.).
Valid platform enums are defined by separate KHR_platform_* extensions.

Bug swiftshader:58

Change-Id: I1eb030f76cd800be9ecb37bad36dd004aceeb1af
Reviewed-on: https://swiftshader-review.googlesource.com/9953Reviewed-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>

All build targets must depend on //build/config:exe_and_shlib_deps.

Bug chromium:723069
Bug swiftshader:54

Change-Id: I7aaecd681ece1ed773239a88a5c4c93a75f7cd1f
Reviewed-on: https://swiftshader-review.googlesource.com/9829Reviewed-by: Tom Anderson <thomasanderson@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Sanitizer tools desire having the vtables of any class with non-pure
virtual methods, even when none of them are called in the current
linkage unit. Work around this by making the affected classes pure
abstract and implementing them in a derived class in the respective
library responsible for creating them.

Bug swiftshader:31

Change-Id: I40046f605731eb1cc3825c1ede2d8d9b5826d0f5
Reviewed-on: https://swiftshader-review.googlesource.com/9914Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Sanitizer tools desire having the vtables of any class with non-pure
virtual methods, even when none of them are called in the current
linkage unit. In the case of sw::FrameBuffer, to work around this we can
make the class pure abstract by making the destructor pure virtual. Note
that the destructor still has a non-empty definition, since all non-
default destructors need a defintion, and it will get called as part of
the destructor chain.

Bug swiftshader:31

Change-Id: I7601b1a725c513ff484cd34a8965636b7f21513c
Reviewed-on: https://swiftshader-review.googlesource.com/9912Reviewed-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>

These were already available for GLES3 and exposed as texturable
formats for GLES2 when the GL_EXT_texture_rg extension was exposed,
but it should also have enabled these formats as renderable formats.

Bug swiftshader:60

Change-Id: I598d7645b04737dae19dc88b4229fa3d7d231714
Reviewed-on: https://swiftshader-review.googlesource.com/9990Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

This is required by chromium tests. There is another cl
(https://swiftshader-review.googlesource.com/9952) which
will change internal uses of OUTLINE_RESOLUTION to adapt
to the rendertarget's height which will reduce the memory
usage increase caused by the current cl.

Change-Id: Iaabbbff07db9c3251ddf49cc534a1a91bab4e5f2
Reviewed-on: https://swiftshader-review.googlesource.com/9988Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

In EGLQueryString, it is now valid to query EGL_EXTENSIONS
with a display set to EGL_NO_DISPLAY, so the function
should proceed without returning an error in these cases.

Change-Id: I76ccd4f98f3d4180268b6b85b5b04a19bea59977
Reviewed-on: https://swiftshader-review.googlesource.com/9948Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

The extension was already implemented for GLES3, but simply required
a few cases to be added for support in GLES2.

Note that this extension is required to process filters using masks
with GLES2 in skia.

Change-Id: I196901ca19a4fd40a5a1ebd87040519b0de6eb5f
Reviewed-on: https://swiftshader-review.googlesource.com/9949Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Change-Id: I60096b0e70049d490ba8bd3c7514f19e8de0017b
Reviewed-on: https://swiftshader-review.googlesource.com/9951Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Bug chromium:729532

Change-Id: Ie10edb39fdc61557f394cddca981f55e89b63cc4
Reviewed-on: https://swiftshader-review.googlesource.com/9950Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Recently, ES3 specific getIntegerv queries were removed from ES2.
Unfortunately, GL_MAX_COLOR_ATTACHMENTS was moved to the ES3
section, but was still supposed to be in the ES2 section,
since the GL_EXT_draw_buffers exposes it.

Change-Id: I2272ccf282558e10ee6cfb1be9d124cc59df14fa
Reviewed-on: https://swiftshader-review.googlesource.com/9911Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

Bug b/38514001

Change-Id: I6d2d891545840beee54db95a7456b6ede293d0eb
Reviewed-on: https://swiftshader-review.googlesource.com/9908Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

TableGen uses exceptions, but is not used.

Change-Id: I3a54c2f72784169804b3305c26f17c63c313931e
Reviewed-on: https://swiftshader-review.googlesource.com/9851Reviewed-by: Lingfeng Yang <lfy@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Lingfeng Yang <lfy@google.com>

Bug b/38268007

Change-Id: I5a75b7ea475848739ca5f3717e2b42c89088dafb
Reviewed-on: https://swiftshader-review.googlesource.com/9828Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

bug: 38257724

With this CL, dEQP-GLES3.functional.shaders.functions.invalid no longer results
in a stack overflow and system crash.

The fix is to explicitly loop over switch cases in the function call
depth analysis.

Later on, we probably want to change TIntermSwitch traversal to loop
over all cases of the switch statement as well, but that requires
a lot of changes; all traversers need to be changed to not have to loop over
switch statements themselves, which will break expectations and
perhaps functionality that critically depends on seeing/controlling iteration
over switch statement cases.

Not tested for regressions in dEQP-GLES2.functional.shaders.*

Test: dEQP-GLES3.functional.shaders.functions.invalid.dynamic_switch_recursion_vertex:
system crash, hang, or fail -> Pass

Change-Id: I5d13a5f3296579c8818975e103f5ed6e03a47b68
Reviewed-on: https://swiftshader-review.googlesource.com/9789Reviewed-by: Lingfeng Yang <lfy@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Lingfeng Yang <lfy@google.com>

Bug b/38257724

Change-Id: I4157ef825ed4ed8f805e9dad35b43bb5780877b6
Reviewed-on: https://swiftshader-review.googlesource.com/9788Reviewed-by: Nicolas Capens <capn@google.com>
Reviewed-by: Lingfeng Yang <lfy@google.com>
Tested-by: Lingfeng Yang <lfy@google.com>

Bug b/17893069

Change-Id: I78d582455192456625523d7bf2bdc5d16c88d68e
Reviewed-on: https://swiftshader-review.googlesource.com/9814Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

If the EGLDisplay input parameter to eglInitialize isn't
PRIMARY_DISPLAY or HEADLESS_DISPLAY, egl::Display::get()
will return null. Instead of crashing, we should return
an EGL_BAD_DISPLAY error.

Change-Id: Ie1e39f2807db5a38f8d21fd6e22270c02cbeba3a
Reviewed-on: https://swiftshader-review.googlesource.com/9813Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Removed flags and verified Linux build / execution still works properly.

Change-Id: Ibad4ec5d1b89d8e9b826c57bf2d6dbd0d18b7a2e
Reviewed-on: https://swiftshader-review.googlesource.com/9812Reviewed-by: Nico Weber <thakis@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Bug swiftshader:53

Change-Id: I20500e567e58ed29caa0a0ad9ad7884e66e96cb9
Reviewed-on: https://swiftshader-review.googlesource.com/9811Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Bug swiftshader:52

Change-Id: I972c769551acf19898f10579685f45f3192612c4
Reviewed-on: https://swiftshader-review.googlesource.com/9810Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

In OpenGL ES 3.0, varyings declared in the vertex shader may be
used by transform feedback, regardless of whether or not they are
also declared in the fragment shader. In OpenGL ES 2.0, these
unmatched varyings are usually discarded. In order to preserve
the OpenGL ES 2.0 behavior and to not burden the Open GL ES 3.0
implementation with new unused varyings, only the unmatched
varyings which may be used as transform feedback inputs will be
added to the vertex shader, instead of always adding all of them.

Change-Id: I35f37b6ee77181b5d3a47605ef246c7d1ecf904d
Reviewed-on: https://swiftshader-review.googlesource.com/9808Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Surface should not lock the resource of a parent texture at destruction, because
it can already have been destroyed. For example when a texture's image was bound
as a render target, and the texture is deleted by the app, then the image holds
the last reference to the texture. When the render target image gets deleted, it
first releases its parent texture, and then the underlying surface gets
destroyed.

This is fixed by synchronizing, by locking and unlocking the (parent) resource,
earlier. The derived class is responsible for calling Surface::sync() before
releasing the parent resource.

Bug chromium:716803

Change-Id: Ifc3685dcf9e25e8419000af65d4bb7407f26bbcb
Reviewed-on: https://swiftshader-review.googlesource.com/9750Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Bug b/37991302

Change-Id: I8a1c28d4a9c8968be3a04da64a19ddd3f5274dd6
Reviewed-on: https://swiftshader-review.googlesource.com/9768Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Change-Id: I383c7b3f18f9dd80c37eea8a4b06a024a060cfd1
Reviewed-on: https://swiftshader-review.googlesource.com/9749Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Bug b/31651425

Change-Id: Ic6c1f16b1ec3ef039e15e72e70a1daee711fba2f
Reviewed-on: https://swiftshader-review.googlesource.com/9748Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fixes a double free.

Change-Id: Ieb71dff4476132b9b2fb624223e26af49a4131ee
Reviewed-on: https://swiftshader-review.googlesource.com/9728Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fixes Android Lollipop (and older) build failures.

Change-Id: I30481a59562854b9891a2ac82ac2e7aab8ff570c
Reviewed-on: https://swiftshader-review.googlesource.com/9709Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

libEGL has to call virtual methods on objects created withing libGLESv2,
and vice-versa. Clang's aggressive link-time-optimization considers
calls to these methods unreachable, because they're not defined within
the same linkage unit. So when they do get called, we're hitting UD
instructions. It can be fixed by marking these classes with
[[clang::lto_visibility_public]] attributes:
https://clang.llvm.org/docs/LTOVisibility.html

Bug chromium:720933

Change-Id: I87f9b09921a1b2d443121efcdb5525ff4cb5797b
Reviewed-on: https://swiftshader-review.googlesource.com/9688Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Bug chromium:719291

Change-Id: I5ddf6d45d3a66a4b626ec1d73995a2a4fd4b28b9
Reviewed-on: https://swiftshader-review.googlesource.com/9668Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

EGL does not and should not depend on LLVM.

Change-Id: I36ef1d67e67cdf7625ca8c1a6f1bf3214c39ee4c
Reviewed-on: https://swiftshader-review.googlesource.com/9611Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Direct3D 9 provides support for a "hardware" cursor. There is no such thing
in newer APIs, so we shouldn't waste time dynamically generating code for it.

Change-Id: I8d54c3500966ce075afb83c98c5013024062eed8
Reviewed-on: https://swiftshader-review.googlesource.com/9629Reviewed-by: Corentin Wallez <cwallez@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

C++11 does not allow narrowing a constant expression value to a type
that can't fully represent it. So when char is considered unsigned,
we can't store -1 in it. Explicitly using signed char fixes it.

Change-Id: I5c0e9fe0025659e06291655a12220ab589d5f5bd
Reviewed-on: https://swiftshader-review.googlesource.com/9630Reviewed-by: Corentin Wallez <cwallez@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>