gfx/skia/trunk/src/gpu/gl/GrGLSL.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 /*
michael@0 2 * Copyright 2011 Google Inc.
michael@0 3 *
michael@0 4 * Use of this source code is governed by a BSD-style license that can be
michael@0 5 * found in the LICENSE file.
michael@0 6 */
michael@0 7
michael@0 8 #include "GrGLSL.h"
michael@0 9 #include "GrGLShaderVar.h"
michael@0 10 #include "SkString.h"
michael@0 11
michael@0 12 GrGLSLGeneration GrGetGLSLGeneration(const GrGLInterface* gl) {
michael@0 13 GrGLSLVersion ver = GrGLGetGLSLVersion(gl);
michael@0 14 switch (gl->fStandard) {
michael@0 15 case kGL_GrGLStandard:
michael@0 16 SkASSERT(ver >= GR_GLSL_VER(1,10));
michael@0 17 if (ver >= GR_GLSL_VER(1,50)) {
michael@0 18 return k150_GrGLSLGeneration;
michael@0 19 } else if (ver >= GR_GLSL_VER(1,40)) {
michael@0 20 return k140_GrGLSLGeneration;
michael@0 21 } else if (ver >= GR_GLSL_VER(1,30)) {
michael@0 22 return k130_GrGLSLGeneration;
michael@0 23 } else {
michael@0 24 return k110_GrGLSLGeneration;
michael@0 25 }
michael@0 26 case kGLES_GrGLStandard:
michael@0 27 // version 1.00 of ES GLSL based on ver 1.20 of desktop GLSL
michael@0 28 SkASSERT(ver >= GR_GL_VER(1,00));
michael@0 29 return k110_GrGLSLGeneration;
michael@0 30 default:
michael@0 31 GrCrash("Unknown GL Standard");
michael@0 32 return k110_GrGLSLGeneration; // suppress warning
michael@0 33 }
michael@0 34 }
michael@0 35
michael@0 36 const char* GrGetGLSLVersionDecl(const GrGLContextInfo& info) {
michael@0 37 switch (info.glslGeneration()) {
michael@0 38 case k110_GrGLSLGeneration:
michael@0 39 if (kGLES_GrGLStandard == info.standard()) {
michael@0 40 // ES2s shader language is based on version 1.20 but is version
michael@0 41 // 1.00 of the ES language.
michael@0 42 return "#version 100\n";
michael@0 43 } else {
michael@0 44 SkASSERT(kGL_GrGLStandard == info.standard());
michael@0 45 return "#version 110\n";
michael@0 46 }
michael@0 47 case k130_GrGLSLGeneration:
michael@0 48 SkASSERT(kGL_GrGLStandard == info.standard());
michael@0 49 return "#version 130\n";
michael@0 50 case k140_GrGLSLGeneration:
michael@0 51 SkASSERT(kGL_GrGLStandard == info.standard());
michael@0 52 return "#version 140\n";
michael@0 53 case k150_GrGLSLGeneration:
michael@0 54 SkASSERT(kGL_GrGLStandard == info.standard());
michael@0 55 if (info.caps()->isCoreProfile()) {
michael@0 56 return "#version 150\n";
michael@0 57 } else {
michael@0 58 return "#version 150 compatibility\n";
michael@0 59 }
michael@0 60 default:
michael@0 61 GrCrash("Unknown GL version.");
michael@0 62 return ""; // suppress warning
michael@0 63 }
michael@0 64 }
michael@0 65
michael@0 66 namespace {
michael@0 67 void append_tabs(SkString* outAppend, int tabCnt) {
michael@0 68 static const char kTabs[] = "\t\t\t\t\t\t\t\t";
michael@0 69 while (tabCnt) {
michael@0 70 int cnt = GrMin((int)GR_ARRAY_COUNT(kTabs), tabCnt);
michael@0 71 outAppend->append(kTabs, cnt);
michael@0 72 tabCnt -= cnt;
michael@0 73 }
michael@0 74 }
michael@0 75 }
michael@0 76
michael@0 77 void GrGLSLMulVarBy4f(SkString* outAppend,
michael@0 78 unsigned tabCnt,
michael@0 79 const char* vec4VarName,
michael@0 80 const GrGLSLExpr4& mulFactor) {
michael@0 81 if (mulFactor.isOnes()) {
michael@0 82 *outAppend = SkString();
michael@0 83 }
michael@0 84
michael@0 85 append_tabs(outAppend, tabCnt);
michael@0 86
michael@0 87 if (mulFactor.isZeros()) {
michael@0 88 outAppend->appendf("%s = vec4(0);\n", vec4VarName);
michael@0 89 } else {
michael@0 90 outAppend->appendf("%s *= %s;\n", vec4VarName, mulFactor.c_str());
michael@0 91 }
michael@0 92 }

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