Revert of Make GrGLConfigConversionEffect work for Imagination and some other GPUs. (https://codereview.chromium.org/277323002/)

Reason for revert:
Need to only use the highp variations on GLES contexts not GL contexts.

http://108.170.220.120:10117/builders/Test-Mac10.6-MacMini4.1-GeForce320M-x86_64-Release/builds/3398/steps/RunTests/logs/stdio

Original issue's description:
> Make GrGLConfigConversionEffect work for Imagination and some other GPUs.
>
> BUG=372341
>
> Committed: https://skia.googlesource.com/skia/+/93cf46f7d687128d2ad05762bd65fea6c4539553

R=tomhudson@chromium.org, changjun.yang@intel.com, rmistry@google.com, jcgregorio@google.com
NOTREECHECKS=true
NOTRY=true
BUG=372341

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/377263003

2 files changed, 0 insertions, 37 deletions

diff --git a/src/gpu/effects/GrConfigConversionEffect.cpp b/src/gpu/effects/GrConfigConversionEffect.cpp
index 0e0c9d1cd6..ff18ef266d 100644
--- a/src/gpu/effects/GrConfigConversionEffect.cpp
+++ b/src/gpu/effects/GrConfigConversionEffect.cpp
@@ -37,7 +37,6 @@ public:
             builder->fsCodeAppendf("\t%s = %s.bgra;\n", outputColor, outputColor);
         } else {
             const char* swiz = fSwapRedAndBlue ? "bgr" : "rgb";
-            const char* outputColorH = "outputColorH";
             switch (fPMConversion) {
                 case GrConfigConversionEffect::kMulByAlpha_RoundUp_PMConversion:
                     builder->fsCodeAppendf(
@@ -61,36 +60,6 @@ public:
                     builder->fsCodeAppendf("\t\t%s = %s.a <= 0.0 ? vec4(0,0,0,0) : vec4(floor(%s.%s / %s.a * 255.0) / 255.0, %s.a);\n",
                         outputColor, outputColor, outputColor, swiz, outputColor, outputColor);
                     break;
-                case GrConfigConversionEffect::kMulByAlpha_RoundUp_HIGHP_PMConversion:
-                    builder->fsCodeAppendf("\thighp vec4 %s;\n", outputColorH);
-                    builder->fsCodeAppendf("\t\t%s = %s;\n", outputColorH, outputColor);
-                    builder->fsCodeAppendf(
-                        "\t\t%s = vec4(ceil(%s.%s * %s.a * 255.0) / 255.0, %s.a);\n",
-                        outputColorH, outputColorH, swiz, outputColorH, outputColorH);
-                    builder->fsCodeAppendf("\t\t%s = %s;\n", outputColor, outputColorH);
-                    break;
-                case GrConfigConversionEffect::kMulByAlpha_RoundDown_HIGHP_PMConversion:
-                    builder->fsCodeAppendf("\thighp vec4 %s;\n", outputColorH);
-                    builder->fsCodeAppendf("\t\t%s = %s;\n", outputColorH, outputColor);
-                    builder->fsCodeAppendf(
-                        "\t\t%s = vec4(floor(%s.%s * %s.a * 255.0) / 255.0, %s.a);\n",
-                        outputColorH, outputColorH, swiz, outputColorH, outputColorH);
-                    builder->fsCodeAppendf("\t\t%s = %s;\n", outputColor, outputColorH);
-                    break;
-                case GrConfigConversionEffect::kDivByAlpha_RoundUp_HIGHP_PMConversion:
-                    builder->fsCodeAppendf("\thighp vec4 %s;\n", outputColorH);
-                    builder->fsCodeAppendf("\t\t%s = %s;\n", outputColorH, outputColor);
-                    builder->fsCodeAppendf("\t\t%s = %s.a <= 0.0 ? vec4(0,0,0,0) : vec4(ceil(%s.%s / %s.a * 255.0) / 255.0, %s.a);\n",
-                        outputColorH, outputColorH, outputColorH, swiz, outputColorH, outputColorH);
-                    builder->fsCodeAppendf("\t\t%s = %s;\n", outputColor, outputColorH);
-                    break;
-                case GrConfigConversionEffect::kDivByAlpha_RoundDown_HIGHP_PMConversion:
-                    builder->fsCodeAppendf("\thighp vec4 %s;\n", outputColorH);
-                    builder->fsCodeAppendf("\t\t%s = %s;\n", outputColorH, outputColor);
-                    builder->fsCodeAppendf("\t\t%s = %s.a <= 0.0 ? vec4(0,0,0,0) : vec4(floor(%s.%s / %s.a * 255.0) / 255.0, %s.a);\n",
-                        outputColorH, outputColorH, outputColorH, swiz, outputColorH, outputColorH);
-                    builder->fsCodeAppendf("\t\t%s = %s;\n", outputColor, outputColorH);
-                    break;
                 default:
                     SkFAIL("Unknown conversion op.");
                     break;
@@ -214,8 +183,6 @@ void GrConfigConversionEffect::TestForPreservingPMConversions(GrContext* context
     static const PMConversion kConversionRules[][2] = {
         {kDivByAlpha_RoundDown_PMConversion, kMulByAlpha_RoundUp_PMConversion},
         {kDivByAlpha_RoundUp_PMConversion, kMulByAlpha_RoundDown_PMConversion},
-        {kDivByAlpha_RoundDown_HIGHP_PMConversion, kMulByAlpha_RoundUp_HIGHP_PMConversion},
-        {kDivByAlpha_RoundUp_HIGHP_PMConversion, kMulByAlpha_RoundDown_HIGHP_PMConversion},
     };
 
     GrContext::AutoWideOpenIdentityDraw awoid(context, NULL);
diff --git a/src/gpu/effects/GrConfigConversionEffect.h b/src/gpu/effects/GrConfigConversionEffect.h
index 74f717f283..4416d05452 100644
--- a/src/gpu/effects/GrConfigConversionEffect.h
+++ b/src/gpu/effects/GrConfigConversionEffect.h
@@ -30,10 +30,6 @@ public:
         kMulByAlpha_RoundDown_PMConversion,
         kDivByAlpha_RoundUp_PMConversion,
         kDivByAlpha_RoundDown_PMConversion,
-        kMulByAlpha_RoundUp_HIGHP_PMConversion,
-        kMulByAlpha_RoundDown_HIGHP_PMConversion,
-        kDivByAlpha_RoundUp_HIGHP_PMConversion,
-        kDivByAlpha_RoundDown_HIGHP_PMConversion,
 
         kPMConversionCnt
     };