Revert of Turned on SkSL->GLSL compiler (patchset #41 id:880001 of https://codereview.chromium.org/2288033003/ )

Reason for revert:
1) Chromium roll failures: https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_rel_ng/builds/307297/steps/screenshot_sync_tests%20on%20NVIDIA%20GPU%20on%20Linux%20%28with%20patch%29%20on%20Linux/logs/stdio

2) G3 roll failures

3) iOS failures: https://uberchromegw.corp.google.com/i/client.skia/builders/Perf-iOS-Clang-iPad4-GPU-SGX554-Arm7-Release/builds/7177/steps/perf_skia%20on%20iOS-9.2/logs/stdio

Original issue's description:
> Turned on SkSL->GLSL compiler
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2288033003
>
> Committed: https://skia.googlesource.com/skia/+/9b0fe3d125f237d9884732a48414fa85fc71b4e3
> Committed: https://skia.googlesource.com/skia/+/b12b3c6908c62c908b3680be01e3b5bfd30de310
> Committed: https://skia.googlesource.com/skia/+/f008b0a59f45c0d4bea3e66faf3b01805009ec89

TBR=benjaminwagner@google.com,bsalomon@google.com,egdaniel@google.com,ethannicholas@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2387643003

1 files changed, 43 insertions, 181 deletions

diff --git a/tests/SkSLGLSLTest.cpp b/tests/SkSLGLSLTest.cpp
index d9d74641e9..3906f67115 100644
--- a/tests/SkSLGLSLTest.cpp
+++ b/tests/SkSLGLSLTest.cpp
@@ -26,52 +26,46 @@ static void test(skiatest::Reporter* r, const char* src, SkSL::GLCaps caps, cons
     }
 }
 
-static SkSL::GLCaps default_caps() {
-    return { 
-             400, 
-             SkSL::GLCaps::kGL_Standard,
-             false, // isCoreProfile
-             false, // usesPrecisionModifiers;
-             false, // mustDeclareFragmentShaderOutput
-             true   // canUseMinAndAbsTogether
-           };
-}
-
 DEF_TEST(SkSLHelloWorld, r) {
+    SkSL::GLCaps caps = { 400, SkSL::GLCaps::kGL_Standard };
     test(r,
-         "void main() { sk_FragColor = vec4(0.75); }",
-         default_caps(),
+         "out vec4 fragColor; void main() { fragColor = vec4(0.75); }",
+         caps,
          "#version 400\n"
+         "out vec4 fragColor;\n"
          "void main() {\n"
-         "    gl_FragColor = vec4(0.75);\n"
+         "    fragColor = vec4(0.75);\n"
          "}\n");
 }
 
 DEF_TEST(SkSLControl, r) {
+    SkSL::GLCaps caps = { 400, SkSL::GLCaps::kGL_Standard };
     test(r,
+         "out vec4 fragColor;"
          "void main() {"
-         "if (1 + 2 + 3 > 5) { sk_FragColor = vec4(0.75); } else { discard; }"
+         "if (1 + 2 + 3 > 5) { fragColor = vec4(0.75); } else { discard; }"
          "int i = 0;"
-         "while (i < 10) sk_FragColor *= 0.5;"
-         "do { sk_FragColor += 0.01; } while (sk_FragColor.x < 0.7);"
+         "while (i < 10) fragColor *= 0.5;"
+         "do { fragColor += 0.01; } while (fragColor.x < 0.7);"
          "for (int i = 0; i < 10; i++) {"
          "if (i % 0 == 1) break; else continue;"
          "}"
          "return;"
          "}",
-         default_caps(),
+         caps,
          "#version 400\n"
+         "out vec4 fragColor;\n"
          "void main() {\n"
          "    if ((1 + 2) + 3 > 5) {\n"
-         "        gl_FragColor = vec4(0.75);\n"
+         "        fragColor = vec4(0.75);\n"
          "    } else {\n"
          "        discard;\n"
          "    }\n"
          "    int i = 0;\n"
-         "    while (i < 10) gl_FragColor *= 0.5;\n"
+         "    while (i < 10) fragColor *= 0.5;\n"
          "    do {\n"
-         "        gl_FragColor += 0.01;\n"
-         "    } while (gl_FragColor.x < 0.7);\n"
+         "        fragColor += 0.01;\n"
+         "    } while (fragColor.x < 0.7);\n"
          "    for (int i = 0;i < 10; i++) {\n"
          "        if (i % 0 == 1) break; else continue;\n"
          "    }\n"
@@ -80,30 +74,34 @@ DEF_TEST(SkSLControl, r) {
 }
 
 DEF_TEST(SkSLFunctions, r) {
+    SkSL::GLCaps caps = { 400, SkSL::GLCaps::kGL_Standard };
     test(r,
+         "out vec4 fragColor;"
          "float foo(float v[2]) { return v[0] * v[1]; }"
          "void bar(inout float x) { float y[2], z; y[0] = x; y[1] = x * 2; z = foo(y); x = z; }"
-         "void main() { float x = 10; bar(x); sk_FragColor = vec4(x); }",
-         default_caps(),
+         "void main() { float x = 10; bar(x); fragColor = vec4(x); }",
+         caps,
          "#version 400\n"
-         "float foo(in float v[2]) {\n"
+         "out vec4 fragColor;\n"
+         "float foo(in float[2] v) {\n"
          "    return v[0] * v[1];\n"
          "}\n"
          "void bar(inout float x) {\n"
          "    float y[2], z;\n"
          "    y[0] = x;\n"
-         "    y[1] = x * 2.0;\n"
+         "    y[1] = x * 2;\n"
          "    z = foo(y);\n"
          "    x = z;\n"
          "}\n"
          "void main() {\n"
-         "    float x = 10.0;\n"
+         "    float x = 10;\n"
          "    bar(x);\n"
-         "    gl_FragColor = vec4(x);\n"
+         "    fragColor = vec4(x);\n"
          "}\n");
 }
 
 DEF_TEST(SkSLOperators, r) {
+    SkSL::GLCaps caps = { 400, SkSL::GLCaps::kGL_Standard };
     test(r,
          "void main() {"
          "float x = 1, y = 2;"
@@ -125,17 +123,17 @@ DEF_TEST(SkSLOperators, r) {
          "z <<= 4;"
          "z %= 5;"
          "}",
-         default_caps(),
+         caps,
          "#version 400\n"
          "void main() {\n"
-         "    float x = 1.0, y = 2.0;\n"
+         "    float x = 1, y = 2;\n"
          "    int z = 3;\n"
          "    x = x + ((y * float(z)) * x) * (y - float(z));\n"
          "    y = (x / y) / float(z);\n"
          "    z = (((z / 2) % 3 << 4) >> 2) << 1;\n"
-         "    bool b = x > 4.0 == x < 2.0 || (2 >= 5 && y <= float(z)) && 12 != 11;\n"
-         "    x += 12.0;\n"
-         "    x -= 12.0;\n"
+         "    bool b = x > 4 == x < 2 || (2 >= 5 && y <= float(z)) && 12 != 11;\n"
+         "    x += 12;\n"
+         "    x -= 12;\n"
          "    x *= (y /= float(z = 10));\n"
          "    b ||= false;\n"
          "    b &&= true;\n"
@@ -150,6 +148,7 @@ DEF_TEST(SkSLOperators, r) {
 }
 
 DEF_TEST(SkSLMatrices, r) {
+    SkSL::GLCaps caps = { 400, SkSL::GLCaps::kGL_Standard };
     test(r,
          "void main() {"
          "mat2x4 x = mat2x4(1);"
@@ -158,18 +157,19 @@ DEF_TEST(SkSLMatrices, r) {
          "vec3 v1 = mat3(1) * vec3(1);"
          "vec3 v2 = vec3(1) * mat3(1);"
          "}",
-         default_caps(),
+         caps,
          "#version 400\n"
          "void main() {\n"
-         "    mat2x4 x = mat2x4(1.0);\n"
-         "    mat3x2 y = mat3x2(1.0, 0.0, 0.0, 1.0, vec2(2.0, 2.0));\n"
+         "    mat2x4 x = mat2x4(1);\n"
+         "    mat3x2 y = mat3x2(1, 0, 0, 1, vec2(2, 2));\n"
          "    mat3x4 z = x * y;\n"
-         "    vec3 v1 = mat3(1.0) * vec3(1.0);\n"
-         "    vec3 v2 = vec3(1.0) * mat3(1.0);\n"
+         "    vec3 v1 = mat3(1) * vec3(1);\n"
+         "    vec3 v2 = vec3(1) * mat3(1);\n"
          "}\n");
 }
 
 DEF_TEST(SkSLInterfaceBlock, r) {
+    SkSL::GLCaps caps = { 400, SkSL::GLCaps::kGL_Standard };
     test(r,
          "uniform testBlock {"
          "float x;"
@@ -179,12 +179,12 @@ DEF_TEST(SkSLInterfaceBlock, r) {
          "};"
          "void main() {"
          "}",
-         default_caps(),
+         caps,
          "#version 400\n"
          "uniform testBlock {\n"
          "    float x;\n"
          "    float[2] y;\n"
-         "    layout (binding = 12) mat3x2 z;\n"
+         "    layout (binding = 12)mat3x2 z;\n"
          "    bool w;\n"
          "};\n"
          "void main() {\n"
@@ -192,6 +192,7 @@ DEF_TEST(SkSLInterfaceBlock, r) {
 }
 
 DEF_TEST(SkSLStructs, r) {
+    SkSL::GLCaps caps = { 400, SkSL::GLCaps::kGL_Standard };
     test(r,
          "struct A {"
          "int x;"
@@ -206,7 +207,7 @@ DEF_TEST(SkSLStructs, r) {
          "B b1, b2, b3;"
          "void main() {"
          "}",
-         default_caps(),
+         caps,
          "#version 400\n"
          "struct A {\n"
          "    int x;\n"
@@ -217,149 +218,10 @@ DEF_TEST(SkSLStructs, r) {
          "struct B {\n"
          "    float x;\n"
          "    float[2] y;\n"
-         "    layout (binding = 1) A z;\n"
+         "    layout (binding = 1)A z;\n"
          "}\n"
          " b1, b2, b3;\n"
          "void main() {\n"
          "}\n");
-}
-
-DEF_TEST(SkSLVersion, r) {
-    SkSL::GLCaps caps = default_caps();
-    caps.fVersion = 450;
-    caps.fIsCoreProfile = true;
-    test(r,
-         "in float test; void main() { sk_FragColor = vec4(0.75); }",
-         caps,
-         "#version 450 core\n"
-         "in float test;\n"
-         "void main() {\n"
-         "    gl_FragColor = vec4(0.75);\n"
-         "}\n");
-    caps.fVersion = 110;
-    caps.fIsCoreProfile = false;
-    test(r,
-         "in float test; void main() { sk_FragColor = vec4(0.75); }",
-         caps,
-         "#version 110\n"
-         "varying float test;\n"
-         "void main() {\n"
-         "    gl_FragColor = vec4(0.75);\n"
-         "}\n");
-}
-
-DEF_TEST(SkSLDeclareOutput, r) {
-    SkSL::GLCaps caps = default_caps();    
-    caps.fMustDeclareFragmentShaderOutput = true;
-    test(r,
-         "void main() { sk_FragColor = vec4(0.75); }",
-         caps,
-         "#version 400\n"
-         "out vec4 sk_FragColor;\n"
-         "void main() {\n"
-         "    sk_FragColor = vec4(0.75);\n"
-         "}\n");    
-}
 
-DEF_TEST(SkSLUsesPrecisionModifiers, r) {
-    SkSL::GLCaps caps = default_caps();
-    test(r,
-         "void main() { float x = 0.75; highp float y = 1; }",
-         caps,
-         "#version 400\n"
-         "void main() {\n"
-         "    float x = 0.75;\n"
-         "    float y = 1.0;\n"
-         "}\n");    
-    caps.fStandard = SkSL::GLCaps::kGLES_Standard;
-    caps.fUsesPrecisionModifiers = true;
-    test(r,
-         "void main() { float x = 0.75; highp float y = 1; }",
-         caps,
-         "#version 400 es\n"
-         "precision highp float;\n"
-         "void main() {\n"
-         "    float x = 0.75;\n"
-         "    highp float y = 1.0;\n"
-         "}\n");    
-}
-
-DEF_TEST(SkSLMinAbs, r) {
-    test(r,
-         "void main() {"
-         "float x = -5;"
-         "x = min(abs(x), 6);"
-         "}",
-         default_caps(),
-         "#version 400\n"
-         "void main() {\n"
-         "    float x = -5.0;\n"
-         "    x = min(abs(x), 6.0);\n"
-         "}\n");
-
-    SkSL::GLCaps caps = default_caps();
-    caps.fCanUseMinAndAbsTogether = false;
-    test(r,
-         "void main() {"
-         "float x = -5.0;"
-         "x = min(abs(x), 6.0);"
-         "}",
-         caps,
-         "#version 400\n"
-         "void main() {\n"
-         "    float minAbsHackVar0;\n"
-         "    float x = -5.0;\n"
-         "    x = (abs(x) > (minAbsHackVar0 = 6.0) ? minAbsHackVar0 : abs(x));\n"
-         "}\n");
-}
-
-DEF_TEST(SkSLModifiersDeclaration, r) {
-    test(r,
-         "layout(blend_support_all_equations) out;"
-         "void main() { }",
-         default_caps(),
-         "#version 400\n"
-         "layout (blend_support_all_equations) out ;\n"
-         "void main() {\n"
-         "}\n");
-}
-
-DEF_TEST(SkSLHex, r) {
-    test(r,
-         "void main() {"
-         "int i1 = 0x0;"
-         "int i2 = 0x1234abcd;"
-         "int i3 = 0x7fffffff;"
-         "int i4 = 0xffffffff;"
-         "int i5 = -0xbeef;"
-         "uint u1 = 0x0;"
-         "uint u2 = 0x1234abcd;"
-         "uint u3 = 0x7fffffff;"
-         "uint u4 = 0xffffffff;"
-         "}",
-         default_caps(),
-         "#version 400\n"
-         "void main() {\n"
-         "    int i1 = 0;\n"
-         "    int i2 = 305441741;\n"
-         "    int i3 = 2147483647;\n"
-         "    int i4 = -1;\n"
-         "    int i5 = -48879;\n"
-         "    uint u1 = 0u;\n"
-         "    uint u2 = 305441741u;\n"
-         "    uint u3 = 2147483647u;\n"
-         "    uint u4 = 4294967295u;\n"
-         "}\n");
-}
-
-DEF_TEST(SkSLArrayConstructors, r) {
-    test(r,
-         "float test1[] = float[](1, 2, 3, 4);"
-         "vec2 test2[] = vec2[](vec2(1, 2), vec2(3, 4));"
-         "mat4 test3[] = mat4[]();",
-         default_caps(),
-         "#version 400\n"
-         "float test1[] = float[](1.0, 2.0, 3.0, 4.0);\n"
-         "vec2 test2[] = vec2[](vec2(1.0, 2.0), vec2(3.0, 4.0));\n"
-         "mat4 test3[] = mat4[]();\n");
 }