Only initialize through a temporary variable if the same symbol name is used in the initialization expression.
TRAC #13627
The previous patch can generate a lot of unnecessary temporary variables. By first checking whether the same symbol name is reused the clutter is reduced to an absolute minimum (typical shaders won't rely on this odd GLSL semantic behavior so the workaround is hardly ever needed).
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@479 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13627
GLSL allows to write things like "float x = x;" where a new variable x is defined and the value of an existing variable x is assigned. HLSL uses C semantics (the new variable is created before the assignment is evaluated), so we need to convert this to "float t = x, x = t;".
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@478 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=48
Review URL: http://codereview.appspot.com/3005042

git-svn-id: https://angleproject.googlecode.com/svn/trunk@476 736b8ea6-26fd-11df-bfd4-992fa37f6226

- lexer and parser reentrant
- line number handling automatic

Caveats:
- The preprocessor is still not thread-safe and full of bugs. I have another not-yet-ready patch to replace the preprocessor.
- The grammar files use options that are not supported by the old versions of flex and bison checked into compiler/tools. So I need to check-in the generated lexer-parser along with a shell script to generate them.

Review URL: http://codereview.appspot.com/2992041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@475 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #14155
Issue=70
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@474 736b8ea6-26fd-11df-bfd4-992fa37f6226

semantic for x and y coordinates rather than previous per-vertex
emulation when running on Shader Model 3.

Verified fix in Chromium with test case from bug.

BUG=http://code.google.com/p/angleproject/issues/detail?id=71
TEST=test case from bug
TBR=nicolas (LGTM'd by dgkoch)

Review URL: http://codereview.appspot.com/2921041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@473 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #14054
The SetRenderTarget calls used in Blit::boxFilter() and Surface::swap() implicitly reset the scissor and viewport rectangles. So we need to ensure that the original rectangles get captured, and restored afterwards (the Context only keeps track of explicitly changed state).
Signed-off-by: Daniel Koch

git-svn-id: https://angleproject.googlecode.com/svn/trunk@472 736b8ea6-26fd-11df-bfd4-992fa37f6226

I tested that the samples still work and that they fail as expected, but do not crash, if the attribute list argument is null.

Review URL: http://codereview.appspot.com/2725042

git-svn-id: https://angleproject.googlecode.com/svn/trunk@471 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #14055
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@470 736b8ea6-26fd-11df-bfd4-992fa37f6226

Fixed infinite loops and buffer overflow in byte_scan when scanning for integers and floating-point numbers.
- The byte_scan and associated functions are not very well written. I tried to clean them as much as possible without re-writing the whole thing.
- Replaced lBuildFloatValue function with atof. lBuildFloatValue was returning incorrect value anyway. The only reason it was working so far because we never used that value.
BUG=59623(crbug.com), 603333(bugzilla.mozilla.org)
Review URL: http://codereview.appspot.com/2655042

git-svn-id: https://angleproject.googlecode.com/svn/trunk@469 736b8ea6-26fd-11df-bfd4-992fa37f6226

I believe we don't support version 1 since we are missing things like the fixed function pipeline.

This is motivated by consistency with other EGL implementations, which return a v1 context if the EGL_CONTEXT_CLIENT_VERSION attribute is not specified.


Review URL: http://codereview.appspot.com/2760041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@468 736b8ea6-26fd-11df-bfd4-992fa37f6226

Trac #14114
Reported in Bug=69

Signed-off-by: Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@467 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=66
Review URL: http://codereview.appspot.com/2619041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@466 736b8ea6-26fd-11df-bfd4-992fa37f6226

- Memory leaks
- Made compiling using multiple strings default. This was not getting exercised.
- Removed redundant copies of file data
- Handled empty files properly which were getting ignored
BUG=66
Review URL: http://codereview.appspot.com/2579041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@465 736b8ea6-26fd-11df-bfd4-992fa37f6226

Fixed stack overflow in CPPextension function. An arbitrary size buffer was being used for extension name. Changed it to use MAX_SYMBOL_NAME_LEN.
- Also formalized the values for MAX_SYMBOL_NAME_LEN and MAX_STRING_LEN. They were being used as if there was a confusion whether it included the NULL terminator or not.
- Fixed some minor issues with code releated to the usage of MAX_SYMBOL_NAME_LEN and MAX_STRING_LEN.
BUG=59625 (crbug.com)
Review URL: http://codereview.appspot.com/2585042

git-svn-id: https://angleproject.googlecode.com/svn/trunk@464 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@463 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@462 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@461 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@460 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@459 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@458 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@457 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@456 736b8ea6-26fd-11df-bfd4-992fa37f6226

TRAC #13792
Signed-off-by: Daniel Koch

Author:    Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@455 736b8ea6-26fd-11df-bfd4-992fa37f6226

Added NSPR support for thread-local storage. Patch submitted by vladimirv. I have slightly modified the patch to still define ANGLE_OS_WIN and ANGLE_OS_POSIX.
BUG=54
Review URL: http://codereview.appspot.com/2497041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@454 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=58
Review URL: http://codereview.appspot.com/2470042

git-svn-id: https://angleproject.googlecode.com/svn/trunk@453 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=60
Review URL: http://codereview.appspot.com/2494041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@452 736b8ea6-26fd-11df-bfd4-992fa37f6226

GLSL backend was assuming that a for-loop will always have a condition. But according to GLSL ES 1.0, the condition is optional.
BUG=50
Review URL: http://codereview.appspot.com/2489042

git-svn-id: https://angleproject.googlecode.com/svn/trunk@451 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=64
Review URL: http://codereview.appspot.com/2495041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@450 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=59
Review URL: http://codereview.appspot.com/2493041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@449 736b8ea6-26fd-11df-bfd4-992fa37f6226

GLSL backend now emits "#version 120" to legally access invariant keyword and gl_PointCoord built-in variable.
BUG=35
Review URL: http://codereview.appspot.com/2341043

git-svn-id: https://angleproject.googlecode.com/svn/trunk@448 736b8ea6-26fd-11df-bfd4-992fa37f6226

Trac #13849

Increased the maximum possible texture & renderbuffer size to 16384 (the minimum required for DX11 cards).
Limit the actual maximum texture & renderbuffer size to the maximum
that it reported by the underlying D3D9 device.

Note that creating textures and renderbuffers at the maximum size will quickly exhaust video memory!

Signed-off-by: Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@447 736b8ea6-26fd-11df-bfd4-992fa37f6226

- Check for D3DDEVCAPS2_CAN_STRETCHRECT_FROM_TEXTURES capability during initialization to fail on DirectX8 drivers.
- Fail in GetDeviceCaps loop after one second.

Review URL: http://codereview.appspot.com/2354042

git-svn-id: https://angleproject.googlecode.com/svn/trunk@446 736b8ea6-26fd-11df-bfd4-992fa37f6226

Define TRACE_OUTPUT_FILE macro to change filename. Default remains "debug.txt" for Visual Studio solution based build. Gyp based build uses "angle-debug.txt".

Review URL: http://codereview.appspot.com/2327043

git-svn-id: https://angleproject.googlecode.com/svn/trunk@445 736b8ea6-26fd-11df-bfd4-992fa37f6226

6 crashes on Windows XP
1 crash on Windows 7

This was Canary 7.0.530.0 using ANGLE r429.

0x011f523b 	[libGLESv2.dll 	- context.cpp:2412] 	gl::Context::clear(unsigned int)
0x011e5f41 	[libGLESv2.dll 	- libglesv2.cpp:611] 	glClear
0x020c400d 	[chrome.dll 	- gl_context.cc:33] 	gfx::GLContext::InitializeCommon()
0x020bb757 	[chrome.dll 	- gl_context_egl.cc:138] 	gfx::NativeViewEGLContext::Initialize()
0x020b8946 	[chrome.dll 	- gl_context_win.cc:502] 	gfx::GLContext::CreateViewGLContext(HWND__ *,bool)
0x01c4f6f8 	[chrome.dll 	- gpu_processor_win.cc:35] 	gpu::GPUProcessor::Initialize(HWND__ *,gfx::Size const &,gpu::GPUProcessor *,unsigned int)
0x01d6e669 	[chrome.dll 	- gpu_command_buffer_stub.cc:88] 	GpuCommandBufferStub::OnInitialize(int,void * *)

It's crashing upon creation of the GL context, possibly the first context. Device lost would possibly explain the XP crashes. The Windows 7 box might have run out of video memory.

I also checked another couple of NULL dereference crashes.


Review URL: http://codereview.appspot.com/2197046

git-svn-id: https://angleproject.googlecode.com/svn/trunk@444 736b8ea6-26fd-11df-bfd4-992fa37f6226

- We recently started using OpenGL-type enums. This CL makes all old enums consistent with the new scheme.
- Renamed TBuiltInResource to ShBuiltInResources to have a consistent prefix

BUG=46
Review URL: http://codereview.appspot.com/2328041

git-svn-id: https://angleproject.googlecode.com/svn/trunk@443 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=45
Review URL: http://codereview.appspot.com/2234047

git-svn-id: https://angleproject.googlecode.com/svn/trunk@442 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=26
Review URL: http://codereview.appspot.com/2213049

git-svn-id: https://angleproject.googlecode.com/svn/trunk@441 736b8ea6-26fd-11df-bfd4-992fa37f6226

BUG=26
Review URL: http://codereview.appspot.com/2206046

git-svn-id: https://angleproject.googlecode.com/svn/trunk@440 736b8ea6-26fd-11df-bfd4-992fa37f6226

Built-in string for vertex shaders can be empty. Nicolas handled this case in r433 but r437 overwrote it.
Review URL: http://codereview.appspot.com/2233046

git-svn-id: https://angleproject.googlecode.com/svn/trunk@439 736b8ea6-26fd-11df-bfd4-992fa37f6226