1 files changed, 7 insertions, 98 deletions

diff --git a/gfx/angle/src/libANGLE/renderer/gl/renderergl_utils.cpp b/gfx/angle/src/libANGLE/renderer/gl/renderergl_utils.cpp
index 504a787f8..87fd24a61 100755
--- a/gfx/angle/src/libANGLE/renderer/gl/renderergl_utils.cpp
+++ b/gfx/angle/src/libANGLE/renderer/gl/renderergl_utils.cpp
@@ -11,8 +11,6 @@
 
 #include <limits>
 
-#include "common/mathutil.h"
-#include "libANGLE/Buffer.h"
 #include "libANGLE/Caps.h"
 #include "libANGLE/formatutils.h"
 #include "libANGLE/renderer/gl/FunctionsGL.h"
@@ -22,8 +20,6 @@
 #include <algorithm>
 #include <sstream>
 
-using angle::CheckedNumeric;
-
 namespace rx
 {
 VendorID GetVendorID(const FunctionsGL *functions)
@@ -871,81 +867,35 @@ void GenerateCaps(const FunctionsGL *functions, gl::Caps *caps, gl::TextureCapsM
         functions->isAtLeastGLES(gl::Version(3, 1));
 
     extensions->pathRendering = canEnableGLPathRendering || canEnableESPathRendering;
-
-    extensions->textureSRGBDecode = functions->hasGLExtension("GL_EXT_texture_sRGB_decode") ||
-                                    functions->hasGLESExtension("GL_EXT_texture_sRGB_decode");
-
-#if defined(ANGLE_PLATFORM_APPLE)
-    VendorID vendor = GetVendorID(functions);
-    if ((IsAMD(vendor) || IsIntel(vendor)) && *maxSupportedESVersion >= gl::Version(3, 0))
-    {
-        // Apple Intel/AMD drivers do not correctly use the TEXTURE_SRGB_DECODE property of sampler
-        // states.  Disable this extension when we would advertise any ES version that has samplers.
-        extensions->textureSRGBDecode = false;
-    }
-#endif
-
-    extensions->sRGBWriteControl = functions->isAtLeastGL(gl::Version(3, 0)) ||
-                                   functions->hasGLExtension("GL_EXT_framebuffer_sRGB") ||
-                                   functions->hasGLExtension("GL_ARB_framebuffer_sRGB") ||
-                                   functions->hasGLESExtension("GL_EXT_sRGB_write_control");
-
-#if defined(ANGLE_PLATFORM_ANDROID)
-    // SRGB blending does not appear to work correctly on the Nexus 5. Writing to an SRGB
-    // framebuffer with GL_FRAMEBUFFER_SRGB enabled and then reading back returns the same value.
-    // Disabling GL_FRAMEBUFFER_SRGB will then convert in the wrong direction.
-    extensions->sRGBWriteControl = false;
-#endif
 }
 
 void GenerateWorkarounds(const FunctionsGL *functions, WorkaroundsGL *workarounds)
 {
     VendorID vendor = GetVendorID(functions);
 
-    workarounds->dontRemoveInvariantForFragmentInput =
-        functions->standard == STANDARD_GL_DESKTOP && IsAMD(vendor);
-
     // Don't use 1-bit alpha formats on desktop GL with AMD or Intel drivers.
     workarounds->avoid1BitAlphaTextureFormats =
-        functions->standard == STANDARD_GL_DESKTOP && (IsAMD(vendor) || IsIntel(vendor));
+        functions->standard == STANDARD_GL_DESKTOP &&
+        (vendor == VENDOR_ID_AMD || vendor == VENDOR_ID_INTEL);
 
     workarounds->rgba4IsNotSupportedForColorRendering =
-        functions->standard == STANDARD_GL_DESKTOP && IsIntel(vendor);
-
-    workarounds->emulateAbsIntFunction = IsIntel(vendor);
-
-    workarounds->addAndTrueToLoopCondition = IsIntel(vendor);
-
-    workarounds->emulateIsnanFloat = IsIntel(vendor);
+        functions->standard == STANDARD_GL_DESKTOP && vendor == VENDOR_ID_INTEL;
 
     workarounds->doesSRGBClearsOnLinearFramebufferAttachments =
-        functions->standard == STANDARD_GL_DESKTOP && (IsIntel(vendor) || IsAMD(vendor));
+        functions->standard == STANDARD_GL_DESKTOP &&
+        (vendor == VENDOR_ID_INTEL || vendor == VENDOR_ID_AMD);
 
 #if defined(ANGLE_PLATFORM_APPLE)
     workarounds->doWhileGLSLCausesGPUHang = true;
-    workarounds->useUnusedBlocksWithStandardOrSharedLayout = true;
 #endif
 
     workarounds->finishDoesNotCauseQueriesToBeAvailable =
-        functions->standard == STANDARD_GL_DESKTOP && IsNvidia(vendor);
+        functions->standard == STANDARD_GL_DESKTOP && vendor == VENDOR_ID_NVIDIA;
 
     // TODO(cwallez): Disable this workaround for MacOSX versions 10.9 or later.
     workarounds->alwaysCallUseProgramAfterLink = true;
 
-    workarounds->unpackOverlappingRowsSeparatelyUnpackBuffer = IsNvidia(vendor);
-    workarounds->packOverlappingRowsSeparatelyPackBuffer     = IsNvidia(vendor);
-
-    workarounds->initializeCurrentVertexAttributes = IsNvidia(vendor);
-
-#if defined(ANGLE_PLATFORM_APPLE)
-    workarounds->unpackLastRowSeparatelyForPaddingInclusion = true;
-    workarounds->packLastRowSeparatelyForPaddingInclusion   = true;
-#else
-    workarounds->unpackLastRowSeparatelyForPaddingInclusion = IsNvidia(vendor);
-    workarounds->packLastRowSeparatelyForPaddingInclusion   = IsNvidia(vendor);
-#endif
-
-    workarounds->removeInvariantAndCentroidForESSL3 = functions->isAtMostGL(gl::Version(4, 1));
+    workarounds->unpackOverlappingRowsSeparatelyUnpackBuffer = vendor == VENDOR_ID_NVIDIA;
 }
 
 }
@@ -1001,45 +951,4 @@ uint8_t *MapBufferRangeWithFallback(const FunctionsGL *functions,
         return nullptr;
     }
 }
-
-gl::ErrorOrResult<bool> ShouldApplyLastRowPaddingWorkaround(const gl::Extents &size,
-                                                            const gl::PixelStoreStateBase &state,
-                                                            GLenum format,
-                                                            GLenum type,
-                                                            bool is3D,
-                                                            const void *pixels)
-{
-    if (state.pixelBuffer.get() == nullptr)
-    {
-        return false;
-    }
-
-    // We are using an pack or unpack buffer, compute what the driver thinks is going to be the
-    // last byte read or written. If it is past the end of the buffer, we will need to use the
-    // workaround otherwise the driver will generate INVALID_OPERATION and not do the operation.
-    CheckedNumeric<size_t> checkedEndByte;
-    CheckedNumeric<size_t> pixelBytes;
-    size_t rowPitch;
-
-    const gl::InternalFormat &glFormat =
-        gl::GetInternalFormatInfo(gl::GetSizedInternalFormat(format, type));
-    ANGLE_TRY_RESULT(glFormat.computePackUnpackEndByte(size, state, is3D), checkedEndByte);
-    ANGLE_TRY_RESULT(glFormat.computeRowPitch(size.width, state.alignment, state.rowLength),
-                     rowPitch);
-    pixelBytes = glFormat.pixelBytes;
-
-    checkedEndByte += reinterpret_cast<intptr_t>(pixels);
-
-    // At this point checkedEndByte is the actual last byte read.
-    // The driver adds an extra row padding (if any), mimic it.
-    ANGLE_TRY_CHECKED_MATH(pixelBytes);
-    if (pixelBytes.ValueOrDie() * size.width < rowPitch)
-    {
-        checkedEndByte += rowPitch - pixelBytes * size.width;
-    }
-
-    ANGLE_TRY_CHECKED_MATH(checkedEndByte);
-
-    return checkedEndByte.ValueOrDie() > static_cast<size_t>(state.pixelBuffer->getSize());
-}
 }