From d5c2920104ea733b8ed417d2b9bdbade61b049cd Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Thu, 9 Mar 2017 07:53:02 -0800
Subject: [core] Extract and de-templatize several Program static methods

---
 src/mbgl/shaders/shaders.cpp | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 src/mbgl/shaders/shaders.cpp

(limited to 'src/mbgl/shaders/shaders.cpp')

diff --git a/src/mbgl/shaders/shaders.cpp b/src/mbgl/shaders/shaders.cpp
new file mode 100644
index 0000000000..f7f5b4d44f
--- /dev/null
+++ b/src/mbgl/shaders/shaders.cpp
@@ -0,0 +1,33 @@
+#include <mbgl/shaders/shaders.hpp>
+#include <mbgl/shaders/preludes.hpp>
+#include <mbgl/programs/program_parameters.hpp>
+
+#include <cassert>
+#include <sstream>
+
+namespace mbgl {
+namespace shaders {
+
+static std::string pixelRatioDefine(const ProgramParameters& parameters) {
+    std::ostringstream pixelRatioSS;
+    pixelRatioSS.imbue(std::locale("C"));
+    pixelRatioSS.setf(std::ios_base::showpoint);
+    pixelRatioSS << parameters.pixelRatio;
+    return std::string("#define DEVICE_PIXEL_RATIO ") + pixelRatioSS.str() + "\n";
+}
+
+std::string fragmentSource(const ProgramParameters& parameters, const char* fragmentSource) {
+    std::string source = pixelRatioDefine(parameters) + fragmentPrelude + fragmentSource;
+    if (parameters.overdraw) {
+        assert(source.find("#ifdef OVERDRAW_INSPECTOR") != std::string::npos);
+        source.replace(source.find_first_of('\n'), 1, "\n#define OVERDRAW_INSPECTOR\n");
+    }
+    return source;
+}
+
+std::string vertexSource(const ProgramParameters& parameters, const char* vertexSource) {
+    return pixelRatioDefine(parameters) + vertexPrelude + vertexSource;
+}
+
+} // namespace shaders
+} // namespace mbgl
-- 
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