Revert "Explicitly enable framebuffer SRGB blending in StateManagerGL."

More compile errors on mac.

This reverts commit 056fae4a01db306b8f9c1e57374e18ebffbdf8eb.

Change-Id: I579b9e50ded7240be4f488a48588a89ecb4bea44
Reviewed-on: https://chromium-review.googlesource.com/302571
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/renderer/gl/FramebufferGL.cpp b/src/libANGLE/renderer/gl/FramebufferGL.cpp
index 92e08cc..35712dc 100644
--- a/src/libANGLE/renderer/gl/FramebufferGL.cpp
+++ b/src/libANGLE/renderer/gl/FramebufferGL.cpp
@@ -18,20 +18,14 @@
 #include "libANGLE/renderer/gl/RenderbufferGL.h"
 #include "libANGLE/renderer/gl/StateManagerGL.h"
 #include "libANGLE/renderer/gl/TextureGL.h"
-#include "libANGLE/renderer/gl/WorkaroundsGL.h"
 
 namespace rx
 {
 
-FramebufferGL::FramebufferGL(const gl::Framebuffer::Data &data,
-                             const FunctionsGL *functions,
-                             StateManagerGL *stateManager,
-                             const WorkaroundsGL &workarounds,
-                             bool isDefault)
+FramebufferGL::FramebufferGL(const gl::Framebuffer::Data &data, const FunctionsGL *functions, StateManagerGL *stateManager, bool isDefault)
     : FramebufferImpl(data),
       mFunctions(functions),
       mStateManager(stateManager),
-      mWorkarounds(workarounds),
       mFramebufferID(0),
       mIsDefault(isDefault)
 {
@@ -44,12 +38,10 @@
 FramebufferGL::FramebufferGL(GLuint id,
                              const gl::Framebuffer::Data &data,
                              const FunctionsGL *functions,
-                             const WorkaroundsGL &workarounds,
                              StateManagerGL *stateManager)
     : FramebufferImpl(data),
       mFunctions(functions),
       mStateManager(stateManager),
-      mWorkarounds(workarounds),
       mFramebufferID(id),
       mIsDefault(true)
 {
@@ -205,7 +197,6 @@
 
 gl::Error FramebufferGL::clear(const gl::Data &data, GLbitfield mask)
 {
-    syncClearState(mask);
     mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebufferID);
     mFunctions->clear(mask);
 
@@ -214,7 +205,6 @@
 
 gl::Error FramebufferGL::clearBufferfv(const gl::State &state, GLenum buffer, GLint drawbuffer, const GLfloat *values)
 {
-    syncClearBufferState(buffer, drawbuffer);
     mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebufferID);
     mFunctions->clearBufferfv(buffer, drawbuffer, values);
 
@@ -223,7 +213,6 @@
 
 gl::Error FramebufferGL::clearBufferuiv(const gl::State &state, GLenum buffer, GLint drawbuffer, const GLuint *values)
 {
-    syncClearBufferState(buffer, drawbuffer);
     mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebufferID);
     mFunctions->clearBufferuiv(buffer, drawbuffer, values);
 
@@ -232,7 +221,6 @@
 
 gl::Error FramebufferGL::clearBufferiv(const gl::State &state, GLenum buffer, GLint drawbuffer, const GLint *values)
 {
-    syncClearBufferState(buffer, drawbuffer);
     mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebufferID);
     mFunctions->clearBufferiv(buffer, drawbuffer, values);
 
@@ -241,7 +229,6 @@
 
 gl::Error FramebufferGL::clearBufferfi(const gl::State &state, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil)
 {
-    syncClearBufferState(buffer, drawbuffer);
     mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebufferID);
     mFunctions->clearBufferfi(buffer, drawbuffer, depth, stencil);
 
@@ -303,72 +290,4 @@
     return mFramebufferID;
 }
 
-void FramebufferGL::syncDrawState() const
-{
-    if (mFunctions->standard == STANDARD_GL_DESKTOP)
-    {
-        // Enable SRGB blending for all framebuffers except the default framebuffer on Desktop
-        // OpenGL.
-        // When SRGB blending is enabled, only SRGB capable formats will use it but the default
-        // framebuffer will always use it if it is enabled.
-        // TODO(geofflang): Update this when the framebuffer binding dirty changes, when it exists.
-        mStateManager->setFramebufferSRGBEnabled(!mIsDefault);
-    }
-}
-
-void FramebufferGL::syncClearState(GLbitfield mask)
-{
-    if (mWorkarounds.doesSRGBClearsOnLinearFramebufferAttachments &&
-        (mask & GL_COLOR_BUFFER_BIT) != 0 && !mIsDefault)
-    {
-        bool hasSRBAttachment = false;
-        for (const auto &attachment : mData.getColorAttachments())
-        {
-            if (attachment.isAttached() && attachment.getColorEncoding() == GL_SRGB)
-            {
-                hasSRBAttachment = true;
-                break;
-            }
-        }
-
-        mStateManager->setFramebufferSRGBEnabled(hasSRBAttachment);
-    }
-    else
-    {
-        mStateManager->setFramebufferSRGBEnabled(!mIsDefault);
-    }
-}
-
-void FramebufferGL::syncClearBufferState(GLenum buffer, GLint drawBuffer)
-{
-    if (mFunctions->standard == STANDARD_GL_DESKTOP)
-    {
-        if (mWorkarounds.doesSRGBClearsOnLinearFramebufferAttachments && buffer == GL_COLOR &&
-            !mIsDefault)
-        {
-            // If doing a clear on a color buffer, set SRGB blend enabled only if the color buffer
-            // is an SRGB format.
-            const auto &drawbufferState  = mData.getDrawBufferStates();
-            const auto &colorAttachments = mData.getColorAttachments();
-
-            const gl::FramebufferAttachment *attachment = nullptr;
-            if (drawbufferState[drawBuffer] >= GL_COLOR_ATTACHMENT0 &&
-                drawbufferState[drawBuffer] < GL_COLOR_ATTACHMENT0 + colorAttachments.size())
-            {
-                size_t attachmentIdx =
-                    static_cast<size_t>(drawbufferState[drawBuffer] - GL_COLOR_ATTACHMENT0);
-                attachment = &colorAttachments[attachmentIdx];
-            }
-
-            if (attachment != nullptr)
-            {
-                mStateManager->setFramebufferSRGBEnabled(attachment->getColorEncoding() == GL_SRGB);
-            }
-        }
-        else
-        {
-            mStateManager->setFramebufferSRGBEnabled(!mIsDefault);
-        }
-    }
-}
 }