Move glsl onto EmitArgs struct for emitCode

src/gpu/effects/GrDistanceFieldGeoProc.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrDistanceFieldGeoProc.h"
 #include "GrInvariantOutput.h"
 #include "GrTexture.h"
@@ skipping 82 matching lines @@
         SkScalar recipHeight = 1.0f / atlas->height();
 
         GrGLSLVertToFrag uv(kVec2f_GrSLType);
         pb->addVarying("TextureCoords", &uv, kHigh_GrSLPrecision);
         vertBuilder->codeAppendf("%s = vec2(%.*f, %.*f) * %s;", uv.vsOut(),
                                  GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipWidth,
                                  GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipHeight,
                                  dfTexEffect.inTextureCoords()->fName);
         
         // Use highp to work around aliasing issues
-        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(pb->glslCaps(),
+        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(args.fGLSLCaps,
                                                                  kHigh_GrSLPrecision));
         fragBuilder->codeAppendf("vec2 uv = %s;\n", uv.fsIn());
 
         fragBuilder->codeAppend("\tfloat texColor = ");
         fragBuilder->appendTextureLookup(args.fSamplers[0],
                                          "uv",
                                          kVec2f_GrSLType);
         fragBuilder->codeAppend(".r;\n");
         fragBuilder->codeAppend("\tfloat distance = "
                        SK_DistanceFieldMultiplier "*(texColor - " SK_DistanceFieldThreshold ");");
@@ skipping 217 matching lines @@
                              dfTexEffect.inPosition()->fName,
                              args.fTransformsIn,
                              args.fTransformsOut);
 
         const char* textureSizeUniName = nullptr;
         fTextureSizeUni = pb->addUniform(GrGLSLProgramBuilder::kFragment_Visibility,
                                          kVec2f_GrSLType, kDefault_GrSLPrecision,
                                          "TextureSize", &textureSizeUniName);
 
         // Use highp to work around aliasing issues
-        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(pb->glslCaps(),
+        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(args.fGLSLCaps,
                                                                  kHigh_GrSLPrecision));
         fragBuilder->codeAppendf("vec2 uv = %s;", v.fsIn());
 
         fragBuilder->codeAppend("float texColor = ");
         fragBuilder->appendTextureLookup(args.fSamplers[0],
                                          "uv",
                                          kVec2f_GrSLType);
         fragBuilder->codeAppend(".r;");
         fragBuilder->codeAppend("float distance = "
             SK_DistanceFieldMultiplier "*(texColor - " SK_DistanceFieldThreshold ");");
 
-        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(pb->glslCaps(),
+        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(args.fGLSLCaps,
                                                                  kHigh_GrSLPrecision));
         fragBuilder->codeAppendf("vec2 st = uv*%s;", textureSizeUniName);
         fragBuilder->codeAppend("float afwidth;");
         if (dfTexEffect.getFlags() & kSimilarity_DistanceFieldEffectFlag) {
             // For uniform scale, we adjust for the effect of the transformation on the distance
             // by using the length of the gradient of the texture coordinates. We use st coordinates
             // to ensure we're mapping 1:1 from texel space to pixel space.
 
             // this gives us a smooth step across approximately one fragment
             fragBuilder->codeAppend("afwidth = abs(" SK_DistanceFieldAAFactor "*dFdy(st.y));");
@@ skipping 203 matching lines @@
                                  GR_SIGNIFICANT_POW2_DECIMAL_DIG, recipHeight,
                                  dfTexEffect.inTextureCoords()->fName);
 
         // add frag shader code
 
         SkAssertResult(fragBuilder->enableFeature(
                 GrGLSLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature));
 
         // create LCD offset adjusted by inverse of transform
         // Use highp to work around aliasing issues
-        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(pb->glslCaps(),
+        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(args.fGLSLCaps,
                                                                  kHigh_GrSLPrecision));
         fragBuilder->codeAppendf("vec2 uv = %s;\n", uv.fsIn());
-        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(pb->glslCaps(),
+        fragBuilder->codeAppend(GrGLSLShaderVar::PrecisionString(args.fGLSLCaps,
                                                                  kHigh_GrSLPrecision));
 
         SkScalar lcdDelta = 1.0f / (3.0f * atlas->width());
         if (dfTexEffect.getFlags() & kBGR_DistanceFieldEffectFlag) {
             fragBuilder->codeAppendf("float delta = -%.*f;\n", SK_FLT_DECIMAL_DIG, lcdDelta);
         } else {
             fragBuilder->codeAppendf("float delta = %.*f;\n", SK_FLT_DECIMAL_DIG, lcdDelta);
         }
         if (isUniformScale) {
             fragBuilder->codeAppendf("float dy = abs(dFdy(%s.y));", st.fsIn());
@@ skipping 186 matching lines @@
     uint32_t flags = kUseLCD_DistanceFieldEffectFlag;
     flags |= d->fRandom->nextBool() ? kUniformScale_DistanceFieldEffectMask : 0;
     flags |= d->fRandom->nextBool() ? kBGR_DistanceFieldEffectFlag : 0;
     return GrDistanceFieldLCDTextGeoProc::Create(GrRandomColor(d->fRandom),
                                                  GrTest::TestMatrix(d->fRandom),
                                                  d->fTextures[texIdx], params,
                                                  wa,
                                                  flags,
                                                  d->fRandom->nextBool());
 }