Review improvements on #971: WIP: Support for other source target languages (#974)

* * Added SourceStyle to CLikeSourceEmitter, to limit cases to actual target types.
* Made Impl methods _ prefixed
* Small tidyup

* * SourceStream -> SourceWriter
* use slang-emit- prefix on SourceWriter file

* * Remove EmitContext -> merge into CLikeSourceEmitter

* slang-c-like-source-emitter -> slang-emit-source.cpp

* ExtensionUsageTracker -> GLSLExtensionTracker
slang-extension-usage-tracker.cpp/.h -> slang-emit-glsl-extension-tracker.cpp/.h

* emit-source.cpp.h -> emit-c-like.cpp/.h

* Small fix to move where some _ prefixed functions are declared in CLikeSourceEmitter.

1 files changed, 0 insertions, 44 deletions

diff --git a/source/slang/slang-extension-usage-tracker.cpp b/source/slang/slang-extension-usage-tracker.cpp
deleted file mode 100644
index f679e15db..000000000
--- a/source/slang/slang-extension-usage-tracker.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-// slang-extension-usage-tracker.cpp
-#include "slang-extension-usage-tracker.h"
-
-namespace Slang {
-
-void ExtensionUsageTracker::requireGLSLExtension(const String& name)
-{
-    if (m_glslExtensionsRequired.Contains(name))
-        return;
-
-    StringBuilder& sb = m_glslExtensionRequireLines;
-
-    sb.append("#extension ");
-    sb.append(name);
-    sb.append(" : require\n");
-
-    m_glslExtensionsRequired.Add(name);
-}
-
-void ExtensionUsageTracker::requireGLSLVersion(ProfileVersion version)
-{
-    // Check if this profile is newer
-    if ((UInt)version > (UInt)m_glslProfileVersion)
-    {
-        m_glslProfileVersion = version;
-    }
-}
-
-void ExtensionUsageTracker::requireGLSLHalfExtension()
-{
-    if (!m_hasGLSLHalfExtension)
-    {
-        // https://github.com/KhronosGroup/GLSL/blob/master/extensions/ext/GL_EXT_shader_16bit_storage.txt
-        requireGLSLExtension("GL_EXT_shader_16bit_storage");
-
-        // https://github.com/KhronosGroup/GLSL/blob/master/extensions/ext/GL_EXT_shader_explicit_arithmetic_types.txt
-        requireGLSLExtension("GL_EXT_shader_explicit_arithmetic_types");
-
-        m_hasGLSLHalfExtension = true;
-    }
-}
-
-
-} // namespace Slang