1 files changed, 34 insertions, 0 deletions
diff --git a/src/mbgl/shader/line_shader.cpp b/src/mbgl/shader/line_shader.cpp
new file mode 100644
index 0000000000..8353f4c6ca
--- /dev/null
+++ b/src/mbgl/shader/line_shader.cpp
@@ -0,0 +1,34 @@
+#include <mbgl/shader/line_shader.hpp>
+#include <mbgl/shader/shaders.hpp>
+#include <mbgl/platform/gl.hpp>
+
+#include <cstdio>
+
+using namespace mbgl;
+
+LineShader::LineShader()
+    : Shader(
+        "line",
+        shaders[LINE_SHADER].vertex,
+        shaders[LINE_SHADER].fragment
+    ) {
+    if (!valid) {
+        fprintf(stderr, "invalid line shader\n");
+        return;
+    }
+
+    a_pos = glGetAttribLocation(program, "a_pos");
+    a_extrude = glGetAttribLocation(program, "a_extrude");
+    a_linesofar = glGetAttribLocation(program, "a_linesofar");
+}
+
+void LineShader::bind(char *offset) {
+    glEnableVertexAttribArray(a_pos);
+    glVertexAttribPointer(a_pos, 2, GL_SHORT, false, 8, offset + 0);
+
+    glEnableVertexAttribArray(a_extrude);
+    glVertexAttribPointer(a_extrude, 2, GL_BYTE, false, 8, offset + 4);
+
+    glEnableVertexAttribArray(a_linesofar);
+    glVertexAttribPointer(a_linesofar, 1, GL_SHORT, false, 8, offset + 6);
+}