ADD: WebASM port (no sound/no network)

src/client/renderer/Tesselator.cpp

@@ -79,6 +79,9 @@ RenderChunk Tesselator::end( bool useMine, int bufferId )
 	const int o_vertices = vertices;
 
 	if (vertices > 0) {
+		if (p <= 0 || p > maxVertices) { clear(); return RenderChunk(); }
+		int bytes = p * sizeof(VERTEX);
+		if (bytes <= 0) return RenderChunk();
 		if (++vboId >= vboCounts)
 			vboId = 0;
 
@@ -92,11 +95,11 @@ RenderChunk Tesselator::end( bool useMine, int bufferId )
 		bufferId = vboIds[vboId];
 #endif
 		int access = GL_STATIC_DRAW;//(accessMode==ACCESS_DYNAMIC) ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW;
-		int bytes = p * sizeof(VERTEX);
 		glBindBuffer2(GL_ARRAY_BUFFER, bufferId);
 		glBufferData2(GL_ARRAY_BUFFER, bytes, _varray, access); // GL_STREAM_DRAW
+		
 		totalSize += bytes;
-
+	
 #ifndef USE_VBO
 		// 0 1 2 3 4 5 6 7
 		// x y z u v c
@@ -264,6 +267,7 @@ void Tesselator::vertex( float x, float y, float z )
 		for (int i = 0; i < 2; i++) {
 
 			const int offs = 3 - i;
+			if (p - offs < 0 || p >= maxVertices) { clear(); return; }
 			VERTEX& src = _varray[p - offs];
 			VERTEX& dst = _varray[p];
 
@@ -287,6 +291,7 @@ void Tesselator::vertex( float x, float y, float z )
 		}
 	}
 
+	if (p < 0 || p >= maxVertices) { clear(); return; }
 	VERTEX& vertex = _varray[p];
 
 	if (hasTexture) {
@@ -377,13 +382,15 @@ void Tesselator::draw()
 	tesselating = false;
 
 	if (vertices > 0) {
+		if (p <= 0 || p > maxVertices) { clear(); return; }
+		int bytes = p * sizeof(VERTEX);
+		if (bytes <= 0) { clear(); return; }
 		if (++vboId >= vboCounts)
 			vboId = 0;
 
 		int bufferId = vboIds[vboId];
 		
 		int access = GL_DYNAMIC_DRAW;//(accessMode==ACCESS_DYNAMIC) ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW;
-		int bytes = p * sizeof(VERTEX);
 		glBindBuffer2(GL_ARRAY_BUFFER, bufferId);
 		glBufferData2(GL_ARRAY_BUFFER, bytes, _varray, access); // GL_STREAM_DRAW
 

src/client/renderer/gles.cpp

@@ -47,9 +47,13 @@ void glInit()
 }
 
 void anGenBuffers(GLsizei n, GLuint* buffers) {
-	static GLuint k = 1;
-	for (int i = 0; i < n; ++i)
-		buffers[i] = ++k;
+#ifdef __EMSCRIPTEN__
+    glGenBuffers(n, buffers);
+#else
+    static GLuint k = 1;
+    for (int i = 0; i < n; ++i)
+        buffers[i] = ++k;
+#endif
 }
 
 #ifdef USE_VBO

src/client/renderer/gles.h

@@ -10,13 +10,13 @@
 #endif
 
 // Other systems might run it, if they #define OPENGL_ES
-#if defined(OPENGL_ES) // || defined(ANDROID)
+// #if defined(OPENGL_ES) // || defined(ANDROID)
 	#define USE_VBO
 	#define GL_QUADS 0x0007
     #if defined(__APPLE__)
         #import <OpenGLES/ES1/gl.height>
         #import <OpenGLES/ES1/glext.height>
-    #elif defined(ANDROID)
+    #elif defined(ANDROID) || defined(__EMSCRIPTEN__)
         #include <GLES/gl.h>
         #include <GLES/glext.h>
     #else
@@ -28,18 +28,18 @@
 		#define glClearDepthf(x)        glClearDepth(x)
 		#define glDepthRangef(a,b)      glDepthRange(a,b)
     #endif
-#else
-    // Uglyness to fix redeclaration issues
-    #ifdef WIN32
-	   #include <WinSock2.h>
-	   #include <Windows.h>
-	#endif
-	#include <gl/glew.h>
-	#include <gl/GL.h>
+// #else
+//     // Uglyness to fix redeclaration issues
+//     #ifdef WIN32
+// 	   #include <WinSock2.h>
+// 	   #include <Windows.h>
+// 	#endif
+// 	#include <gl/glew.h>
+// 	#include <gl/GL.h>
 
-	#define glFogx(a,b)	glFogi(a,b)
-	#define glOrthof(a,b,c,d,e,f) glOrtho(a,b,c,d,e,f)
-#endif
+// 	#define glFogx(a,b)	glFogi(a,b)
+// 	#define glOrthof(a,b,c,d,e,f) glOrtho(a,b,c,d,e,f)
+// #endif
 
 
 #define GLERRDEBUG 1