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authorGravatar cdalton <cdalton@nvidia.com>2016-02-11 14:10:38 -0800
committerGravatar Commit bot <commit-bot@chromium.org>2016-02-11 14:10:38 -0800
commitd36f2c4bc047c2c531d73eee08daa5926e8cdaf2 (patch)
treec1729a9a100263a2117d169fc3239d570cec5077 /src
parent9b9497ef14f23562a95afe989d1efe41c603a6f6 (diff)
Add #define directives to GrGLSLShaderBuilder
Diffstat (limited to 'src')
-rw-r--r--src/gpu/glsl/GrGLSLShaderBuilder.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/gpu/glsl/GrGLSLShaderBuilder.h b/src/gpu/glsl/GrGLSLShaderBuilder.h
index 16a0756306..5c3408e704 100644
--- a/src/gpu/glsl/GrGLSLShaderBuilder.h
+++ b/src/gpu/glsl/GrGLSLShaderBuilder.h
@@ -60,6 +60,26 @@ public:
GrSLType coordType = kVec2f_GrSLType);
/**
+ * Adds a #define directive to the top of the shader.
+ */
+ void define(const char* macro, const char* replacement) {
+ this->definitions().appendf("#define %s %s\n", macro, replacement);
+ }
+
+ void define(const char* macro, int replacement) {
+ this->definitions().appendf("#define %s %i\n", macro, replacement);
+ }
+
+ void definef(const char* macro, const char* replacement, ...) {
+ this->definitions().appendf("#define %s ", macro);
+ va_list args;
+ va_start(args, replacement);
+ this->definitions().appendVAList(replacement, args);
+ va_end(args);
+ this->definitions().append("\n");
+ }
+
+ /**
* Called by GrGLSLProcessors to add code to one of the shaders.
*/
void codeAppendf(const char format[], ...) SK_PRINTF_LIKE(2, 3) {
@@ -152,6 +172,7 @@ protected:
SkString& versionDecl() { return fShaderStrings[kVersionDecl]; }
SkString& extensions() { return fShaderStrings[kExtensions]; }
+ SkString& definitions() { return fShaderStrings[kDefinitions]; }
SkString& precisionQualifier() { return fShaderStrings[kPrecisionQualifier]; }
SkString& layoutQualifiers() { return fShaderStrings[kLayoutQualifiers]; }
SkString& uniforms() { return fShaderStrings[kUniforms]; }
@@ -166,6 +187,7 @@ protected:
enum {
kVersionDecl,
kExtensions,
+ kDefinitions,
kPrecisionQualifier,
kLayoutQualifiers,
kUniforms,