This is better so we can dump same shader multiple times.
Signed-off-by: Lepton Wu <lepton@chromium.org>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
This helper completely replace the contents of a strbuf with its
content. This is useful when building temporary strings in the shader
source generation code, and it a bit semantically cleaner (and more
efficient) than appending to an empty buffer.
Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-By: Gert Wollny <gert.wollny@collabora.com>
We already have an oportunistic buffer to try with here, let's use that
instead of writing to the stack first.
Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-By: Gert Wollny <gert.wollny@collabora.com>
There's no good reason to keep this code here; it's not like it saves us
a lot of logic, and it's unused apart from inside the glsl main.
This has the benefit of keeping struf a bit simpler; less mechanisms
needs to know about each other. Since I plan on adding more
functionality to strbuf, this will make things a lot easier.
Sadly, we don't have an easy way of doing unit-tests for the
vrend_shader internals. So for now I'm just dropping the tests here.
It's not ideal, I know, but yeah... Sorry? :P
Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-By: Gert Wollny <gert.wollny@collabora.com>
This helps a lot locating errors in the shaders.
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
We have call-sites where we already know the length of the string,
so calling strlen is entirely needless. So let's introduce a variant
called strbuf_append_buffer that takes an explicit length, and make
strbug_append call that instead.
Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
It's not legal to reuse the varargs list without taking a copy, so
let's do that before we use it.
Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
This adds a string buffer implementation + unit tests with
the following features:
- growing reallocation on append
- variadic printf-like append function
- indenting
- error state tracking (stop appending on errors)
This will be used in the GLSL shader construction to clean up
the bad string length issues we have now.
The variadic append is based on one Erik Faye-Lund wrote.
v1.1: improve indenting
v1.2: fix includes + use memcpy
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Lepton Wu
Erik Faye-Lund
Gert Wollny
Dave Airlie