Revert of Progress on gamma-correctness in the GPU backend. Fixed conversion of color and profile type to pix… (patchset #1 id:1 of https://codereview.chromium.org/1750383002/ )

Reason for revert:
GM breakage. Changes to SkGr.cpp appear to be altering behavior on a variety of tests. Debugging...

Original issue's description:
> Progress on gamma-correctness in the GPU backend. Fixed conversion of color and profile type to pixel config, which makes many things "just work".
>
> Added (color=8888|f16|srgb) option to gpu configurations, along with gpuf16, gpusrgb, and anglesrgb predefined configs. Runs the gpu backend in gamma-correct mode (with either FP16 linear or sRGB 8888 frambuffers).
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1750383002
>
> Committed: https://skia.googlesource.com/skia/+/a6f58194733c1c50e4fe5f98585e42344f29b6f0

TBR=mtklein@google.com,bsalomon@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1755553003

2 files changed, 7 insertions, 54 deletions

diff --git a/tools/flags/SkCommonFlagsConfig.cpp b/tools/flags/SkCommonFlagsConfig.cpp
index 983a5018f0..c82e8de003 100644
--- a/tools/flags/SkCommonFlagsConfig.cpp
+++ b/tools/flags/SkCommonFlagsConfig.cpp
@@ -23,11 +23,11 @@ static const char defaultConfigs[] =
 
 static const char configHelp[] =
     "Options: 565 8888 debug gpu gpudebug gpudft gpunull "
-    "msaa16 msaa4 gpuf16 gpusrgb nonrendering null nullgpu nvprmsaa16 nvprmsaa4 "
+    "msaa16 msaa4 nonrendering null nullgpu nvprmsaa16 nvprmsaa4 "
     "pdf pdf_poppler skp svg xps"
 #if SK_ANGLE
 #ifdef SK_BUILD_FOR_WIN
-    " angle anglesrgb"
+    " angle"
 #endif
     " angle-gl"
 #endif
@@ -47,7 +47,7 @@ static const char configExtendedHelp[] =
     "Possible backends and options:\n"
 #if SK_SUPPORT_GPU
     "\n"
-    "gpu(api=string,color=string,dit=bool,nvpr=bool,samples=int)\tGPU backend\n"
+    "gpu(api=string,dit=bool,nvpr=bool,samples=int)\tGPU backend\n"
     "\tapi\ttype: string\tdefault: native.\n"
     "\t    Select graphics API to use with gpu backend.\n"
     "\t    Options:\n"
@@ -69,12 +69,6 @@ static const char configExtendedHelp[] =
 #if SK_MESA
     "\t\tmesa\t\t\tUse MESA.\n"
 #endif
-    "\tcolor\ttype: string\tdefault: 8888.\n"
-    "\t    Select framebuffer color format.\n"
-    "\t    Options:\n"
-    "\t\t8888\t\t\tLinear 8888.\n"
-    "\t\tf16 \t\t\tLinear 16-bit floating point.\n"
-    "\t\tsrgb\t\t\tsRGB 8888.\n"
     "\tdit\ttype: bool\tdefault: false.\n"
     "\t    Use device independent text.\n"
     "\tnvpr\ttype: bool\tdefault: false.\n"
@@ -88,8 +82,6 @@ static const char configExtendedHelp[] =
     "\tmsaa16   \t= gpu(samples=16)\n"
     "\tnvprmsaa4\t= gpu(nvpr=true,samples=4)\n"
     "\tnvprmsaa16\t= gpu(nvpr=true,samples=16)\n"
-    "\tgpuf16    \t= gpu(color=f16)\n"
-    "\tgpusrgb   \t= gpu(color=srgb)\n"
     "\tgpudft    \t= gpu(dit=true)\n"
     "\tgpudebug  \t= gpu(api=debug)\n"
     "\tgpunull   \t= gpu(api=null)\n"
@@ -98,7 +90,6 @@ static const char configExtendedHelp[] =
 #if SK_ANGLE
 #ifdef SK_BUILD_FOR_WIN
     "\tangle     \t= gpu(api=angle)\n"
-    "\tanglesrgb \t= gpu(api=angle,color=srgb)\n"
 #endif
     "\tangle-gl  \t= gpu(api=angle-gl)\n"
 #endif
@@ -124,8 +115,6 @@ static const struct {
     { "msaa16",     "gpu", "samples=16" },
     { "nvprmsaa4",  "gpu", "nvpr=true,samples=4,dit=true" },
     { "nvprmsaa16", "gpu", "nvpr=true,samples=16,dit=true" },
-    { "gpuf16",     "gpu", "color=f16" },
-    { "gpusrgb",    "gpu", "color=srgb" },
     { "gpudft",     "gpu", "dit=true" },
     { "gpudebug",   "gpu", "api=debug" },
     { "gpunull",    "gpu", "api=null" },
@@ -134,7 +123,6 @@ static const struct {
 #if SK_ANGLE
 #ifdef SK_BUILD_FOR_WIN
     , { "angle",      "gpu", "api=angle" }
-    , { "anglesrgb",  "gpu", "api=angle,color=srgb" }
 #endif
     , { "angle-gl",   "gpu", "api=angle-gl" }
 #endif
@@ -161,15 +149,12 @@ SkCommandLineConfig::~SkCommandLineConfig() {
 #if SK_SUPPORT_GPU
 SkCommandLineConfigGpu::SkCommandLineConfigGpu(
     const SkString& tag, const SkTArray<SkString>& viaParts,
-    ContextType contextType, bool useNVPR, bool useDIText, int samples,
-    SkColorType colorType, SkColorProfileType profileType)
+    ContextType contextType, bool useNVPR, bool useDIText, int samples)
         : SkCommandLineConfig(tag, SkString("gpu"), viaParts)
         , fContextType(contextType)
         , fUseNVPR(useNVPR)
         , fUseDIText(useDIText)
-        , fSamples(samples)
-        , fColorType(colorType)
-        , fProfileType(profileType) {
+        , fSamples(samples) {
 }
 static bool parse_option_int(const SkString& value, int* outInt) {
     if (value.isEmpty()) {
@@ -246,26 +231,6 @@ static bool parse_option_gpu_api(const SkString& value,
 #endif
     return false;
 }
-static bool parse_option_gpu_color(const SkString& value,
-                                   SkColorType* outColorType,
-                                   SkColorProfileType* outProfileType) {
-    if (value.equals("8888")) {
-        *outColorType = kN32_SkColorType;
-        *outProfileType = kLinear_SkColorProfileType;
-        return true;
-    }
-    if (value.equals("f16")) {
-        *outColorType = kRGBA_F16_SkColorType;
-        *outProfileType = kLinear_SkColorProfileType;
-        return true;
-    }
-    if (value.equals("srgb")) {
-        *outColorType = kN32_SkColorType;
-        *outProfileType = kSRGB_SkColorProfileType;
-        return true;
-    }
-    return false;
-}
 
 SkCommandLineConfigGpu* parse_command_line_config_gpu(const SkString& tag,
                                                       const SkTArray<SkString>& vias,
@@ -279,9 +244,6 @@ SkCommandLineConfigGpu* parse_command_line_config_gpu(const SkString& tag,
     bool useDIText = false;
     bool seenSamples = false;
     int samples = 0;
-    bool seenColor = false;
-    SkColorType colorType = kN32_SkColorType;
-    SkColorProfileType profileType = kLinear_SkColorProfileType;
 
     SkTArray<SkString> optionParts;
     SkStrSplit(options.c_str(), ",", kStrict_SkStrSplitMode, &optionParts);
@@ -306,16 +268,12 @@ SkCommandLineConfigGpu* parse_command_line_config_gpu(const SkString& tag,
         } else if (key.equals("samples") && !seenSamples) {
             valueOk = parse_option_int(value, &samples);
             seenSamples = true;
-        } else if (key.equals("color") && !seenColor) {
-            valueOk = parse_option_gpu_color(value, &colorType, &profileType);
-            seenColor = true;
         }
         if (!valueOk) {
             return nullptr;
         }
     }
-    return new SkCommandLineConfigGpu(tag, vias, contextType, useNVPR, useDIText, samples,
-                                      colorType, profileType);
+    return new SkCommandLineConfigGpu(tag, vias, contextType, useNVPR, useDIText, samples);
 }
 #endif
 
diff --git a/tools/flags/SkCommonFlagsConfig.h b/tools/flags/SkCommonFlagsConfig.h
index 39f1f9788b..423cf1118c 100644
--- a/tools/flags/SkCommonFlagsConfig.h
+++ b/tools/flags/SkCommonFlagsConfig.h
@@ -52,23 +52,18 @@ class SkCommandLineConfigGpu : public SkCommandLineConfig {
   public:
     typedef GrContextFactory::GLContextType ContextType;
     SkCommandLineConfigGpu(const SkString& tag, const SkTArray<SkString>& viaParts,
-                           ContextType contextType, bool useNVPR, bool useDIText, int samples,
-                           SkColorType colorType, SkColorProfileType profileType);
+                           ContextType contextType, bool useNVPR, bool useDIText, int samples);
     const SkCommandLineConfigGpu* asConfigGpu() const override { return this; }
     ContextType getContextType() const { return fContextType; }
     bool getUseNVPR() const { return fUseNVPR; }
     bool getUseDIText() const { return fUseDIText; }
     int getSamples() const { return fSamples; }
-    SkColorType getColorType() const { return fColorType; }
-    SkColorProfileType getProfileType() const { return fProfileType; }
 
   private:
     ContextType fContextType;
     bool fUseNVPR;
     bool fUseDIText;
     int fSamples;
-    SkColorType fColorType;
-    SkColorProfileType fProfileType;
 };
 #endif