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isblank() is not used in the code.
Reviewed-by: Matt Turner <[email protected]>
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Sometimes the newline separator is a single character, and sometimes it is two
characters. Before we can fold away and line-continuation backslashes, we
identify the flavor of line separator that is in use.
With this identified, we then correctly search for backslashes followed
immediately by the first character of the line separator.
Also, when re-inserting newlines to replace collapsed newlines, we carefully
insert newlines of the same flavor.
With this commit, almost all remaining test are fixed as tested by
glcpp-test-cr-lf:
\r: 142/143 tests pass
\r\n: 142/143 tests pass
\n\r: 143/143 tests pass
(The only remaining failures have nothing to do with the actual pre-processor
code, but are due to a bug in the way the test suite uses grep to try to
extract test-specific command-line options from the source files.)
Reviewed-by: Ian Romanick <[email protected]>
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Fixes a regression since b2d1c579 where ES shaders without a #version
declaration would fail to compile if their precision declaration was
wrapped in the standard #ifdef GL_ES check.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74066
Reviewed-by: Jordan Justen <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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The check was in the wrong place, such that if a shader incorrectly put
a preprocessor token before the #version declaration, the version would
be resolved twice, leading to a segmentation fault when attempting to
redefine the __VERSION__ macro.
#extension GL_ARB_sample_shading: require
#version 130
void main() {}
Also, rename glcpp_parser_resolve_version to
glcpp_parser_resolve_implicit_version to avoid confusion.
Reviewed-by: Jordan Justen <[email protected]>
Reviewed-by: Carl Worth <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Instead of defining preprocessor macros in glcpp_parser_create based on
the GL API, wait until the shader version has been resolved. Doing this
allows us to correctly set (and not set) preprocessor macros for
extensions allowed by the API but not the shader, as in the case of
ARB_ES3_compatibility.
The shader version has been resolved when the preprocessor encounters
the first preprocessor token, since the GLSL spec says
"The #version directive must occur in a shader before anything else,
except for comments and white space."
Specifically, if a #version token is found the version is known
explicitly, and if any other preprocessor token is found then the GLSL
version is implicitly 1.10.
Cc: [email protected]
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71630
Reviewed-by: Ian Romanick <[email protected]>
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This loop-control condition with a post-decrement operator would lead to
an underflow of collapsed_newlines. This in turn would cause a subsequent
execution of the loop to labor inordinately trying to return the loop-control
variable to a value of 0 again.
Fix this by dis-intertwining the test and the decrement.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65112
Reviewed-by: Kenneth Graunke <[email protected]>
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Previously, we were only supporting line-continuation backslash characters
within lines of pre-processor directives, (as per the specification). With
OpenGL 4.2 and GLES3, line continuations are now supported anywhere within a
shader.
While changing this, also fix a bug where the preprocessor was ignoring
line continuation characters when a line ended in multiple backslash
characters.
The new code is also more efficient than the old. Previously, we would
perform a ralloc copy at each newline. We now perform copies only at each
occurrence of a line-continuation.
This commit fixes the line-continuation.vert test in piglit.
Reviewed-by: Kenneth Graunke <[email protected]>
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And simply don't call into the function that removes line continuations.
Reviewed-by: Kenneth Graunke <[email protected]>
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As the preprocessor becomes more sophisticated and gains more optional
behavior, it's easiest to just pass the GL context pointer to it so that
it can examine any fields there that it needs to (such as API version,
or the state of any driconf options, etc.).
Reviewed-by: Kenneth Graunke <[email protected]>
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This reverts commit 962a1c07b44fe500b79b3ca6806d72a432c1f055.
Further testing revealed that this commit can cause the pre-processor to enter
infinite loops. For now, simply revert this code until a cleaner,
better-tested version is available.
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Previously, we were only supporting line-continuation backslash characters
within lines of pre-processor directives, (as per the specification). With
OpenGL 4.2 and GLES3, line continuations are now supported anywhere within a
shader.
While changing this, also fix a bug where the preprocessor was ignoring
line continuation characters when a line ended in multiple backslash
characters.
The new code is also more efficient than the old. Previously, we would
perform a ralloc copy at each newline. We now perform copies only at each
occurrence of a line-continuation.
Reviewed-by: Kenneth Graunke <[email protected]>
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This symbol with dricore escapes into the namespace, its too generic,
we should prefix it with something just to be nice.
Should be applied to stable + 9.0
Acked-by: Kenneth Graunke <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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Commit b823b99ec0f13af257dcd885f436a4d294c6222a switched from using
functions such as ralloc_asprintf and ralloc_strcat to
ralloc_asprintf_rewrite_tail. This change maintains the string's
length as a aparamter that is updated by the ralloc functions (rather
than recomputing it with strlen over and over).
However, the change failed to updated two locations (glcpp_error and
glcpp_warning), with the result that the string's length wasn't
updated by these calls. Then, subsequent calls to other
ralloc_asprintf_rewrite_tail would overwrite the text appended by
glcpp_error.
This commit fixes the two missing updates, and restores line numbers
to the output of glcpp error messages, (as noticed by a glcpp unit
test case that has been failing since the above-mentioned commit).
Signed-off-by: Carl Worth <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Also define it if #version 100 is encountered.
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Signed-off-by: Brian Paul <[email protected]>
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This was previously being appended to the output string *after* a copy
of the supposedly final string was made and handed to the caller. So
the diagnostic was never actually visible to the user.
We fix this by moving the check for an unterminated #if from
glcpp_parser_destroy to the calling function, preprocess.
This fixes the test case 083-unterminated-if.c.
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Fixes a valgrind error.
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The only optional extension currently supported by the compiler is
GL_EXT_texture_array.
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