*merge from minimal

1 files changed, 54 insertions, 0 deletions

diff --git a/src/libjin/Graphics/Shader/je_jsl_compiler.cpp b/src/libjin/Graphics/Shader/je_jsl_compiler.cpp
new file mode 100644
index 0000000..81b14e8
--- /dev/null
+++ b/src/libjin/Graphics/Shader/je_jsl_compiler.cpp
@@ -0,0 +1,54 @@
+#include "../../core/je_configuration.h"
+#if defined(jin_graphics) && (jin_graphics & jin_graphics_shader)
+
+#include "../../Filesystem/je_buffer.h"
+
+#include "je_jsl_compiler.h"
+
+using namespace std;
+using namespace JinEngine::Filesystem;
+
+namespace JinEngine
+{
+    namespace Graphics
+    {
+
+#include "je_base.shader.h"
+
+        bool JSLCompiler::compile(const string& jsl, string* vertex_shader, string* fragment_shader)
+        {
+            // parse shader source, need some optimizations
+            int loc_VERTEX_SHADER = jsl.find("#VERTEX_SHADER");
+            int loc_END_VERTEX_SHADER = jsl.find("#END_VERTEX_SHADER");
+            int loc_FRAGMENT_SHADER = jsl.find("#FRAGMENT_SHADER");
+            int loc_END_FRAGMENT_SHADER = jsl.find("#END_FRAGMENT_SHADER");
+            if (loc_VERTEX_SHADER == string::npos
+             || loc_END_VERTEX_SHADER == string::npos
+             || loc_FRAGMENT_SHADER == string::npos
+             || loc_END_FRAGMENT_SHADER == string::npos
+            )
+                return false;
+            // Load vertex and fragment shader source into buffers.
+            {
+                // Compile JSL vertex program.
+                int start = loc_VERTEX_SHADER + strlen("#VERTEX_SHADER");
+                *vertex_shader = jsl.substr(start, loc_END_VERTEX_SHADER - start);
+                Buffer vbuffer = Buffer(vertex_shader->length() + BASE_VERTEX_SHADER_SIZE);
+                formatVertexShader((char*)&vbuffer, vertex_shader->c_str());
+                vertex_shader->assign((char*)&vbuffer);
+            }
+            {
+                // Compile JSL fragment program.
+                int start = loc_FRAGMENT_SHADER + strlen("#FRAGMENT_SHADER");
+                *fragment_shader = jsl.substr(start, loc_END_FRAGMENT_SHADER - start);
+                Buffer fbuffer = Buffer(fragment_shader->length() + BASE_FRAGMENT_SHADER_SIZE);
+                formatFragmentShader((char*)&fbuffer, fragment_shader->c_str());
+                fragment_shader->assign((char*)&fbuffer);
+            }
+            return true;
+        }
+
+    } // namespace Graphics
+} // namespace JinEngine
+
+#endif // (jin_graphics) && (jin_graphics & jin_graphics_shader)
\ No newline at end of file