From 56c365c8cc88455d69df42e7842c986e760c776e Mon Sep 17 00:00:00 2001
From: jussi
Date: Thu, 26 Oct 2023 20:09:16 +0300
Subject: Buffer userdata object and rlgl Vertex buffers management.

---
 src/lua_core.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'src/lua_core.c')

diff --git a/src/lua_core.c b/src/lua_core.c
index f8b25bb..1d6372b 100644
--- a/src/lua_core.c
+++ b/src/lua_core.c
@@ -618,6 +618,11 @@ static void defineGlobals() {
 	assignGlobalInt( GLFW_RELEASE, "GLFW_RELEASE" );
 	assignGlobalInt( GLFW_PRESS, "GLFW_PRESS" );
 	assignGlobalInt( GLFW_REPEAT, "GLFW_REPEAT" );
+	/* CBuffer Data Types */
+	assignGlobalInt( BUFFER_UNSIGNED_CHAR, "BUFFER_UNSIGNED_CHAR" );
+	assignGlobalInt( BUFFER_UNSIGNED_SHORT, "BUFFER_UNSIGNED_SHORT" );
+	assignGlobalInt( BUFFER_UNSIGNED_INT, "BUFFER_UNSIGNED_INT" );
+	assignGlobalInt( BUFFER_FLOAT, "BUFFER_FLOAT" );
 	/* Window Events. */
 	assignGlobalInt( EVENT_WINDOW_SIZE, "EVENT_WINDOW_SIZE" );
 	assignGlobalInt( EVENT_WINDOW_MAXIMIZE, "EVENT_WINDOW_MAXIMIZE" );
@@ -636,6 +641,21 @@ static void defineGlobals() {
 	lua_pop( L, -1 );
 }
 
+static int freeBuffer( lua_State *L ) {
+	Buffer *buffer = luaL_checkudata ( L, 1, "Buffer" );
+	free( buffer->data );
+}
+
+static void defineCBuffer() {
+	lua_State *L = state->luaState;
+
+	luaL_newmetatable( L, "Buffer" );
+	lua_pushvalue( L, -1 );
+	lua_setfield( L, -2, "__index" );
+	lua_pushcfunction( L, freeBuffer );
+	lua_setfield( L, -2, "__gc" );
+}
+
 // Custom logging funtion.
 static void logCustom( int logLevel, const char *text, va_list args ) {
 	char string[ STRING_LEN ] = {'\0'};
@@ -1019,6 +1039,7 @@ bool luaInit( int argn, const char **argc ) {
 		return false;
 	}
 	defineGlobals();
+	defineCBuffer();
 
 	/* Set arguments. */
 	lua_getglobal( L, "RL" );
@@ -1235,6 +1256,7 @@ void luaRegister() {
 	assingGlobalFunction( "SetLogLevelInvalid", lcoreSetLogLevelInvalid );
 	assingGlobalFunction( "GetLogLevelInvalid", lcoreGetLogLevelInvalid );
 	assingGlobalFunction( "OpenURL", lcoreOpenURL );
+	assingGlobalFunction( "LoadBuffer", lcoreLoadBuffer );
 		/* Cursor. */
 	assingGlobalFunction( "ShowCursor", lcoreShowCursor );
 	assingGlobalFunction( "HideCursor", lcoreHideCursor );
@@ -1944,10 +1966,18 @@ void luaRegister() {
 		/* Vertex buffers management. */
 	assingGlobalFunction( "rlLoadVertexArray", lrlglLoadVertexArray );
 	assingGlobalFunction( "rlLoadVertexBuffer", lrlglLoadVertexBuffer );
+	assingGlobalFunction( "rlLoadVertexBufferElement", lrlglLoadVertexBufferElement );
+	assingGlobalFunction( "rlUpdateVertexBuffer", lrlglUpdateVertexBuffer );
+	assingGlobalFunction( "rlUpdateVertexBufferElements", lrlglUpdateVertexBufferElements );
 	assingGlobalFunction( "rlUnloadVertexArray", lrlglUnloadVertexArray );
 	assingGlobalFunction( "rlUnloadVertexBuffer", lrlglUnloadVertexBuffer );
 	assingGlobalFunction( "rlSetVertexAttribute", lrlglSetVertexAttribute );
+	assingGlobalFunction( "rlSetVertexAttributeDivisor", lrlglSetVertexAttributeDivisor );
+	assingGlobalFunction( "rlSetVertexAttributeDefault", lrlglSetVertexAttributeDefault );
 	assingGlobalFunction( "rlDrawVertexArray", lrlglDrawVertexArray );
+	assingGlobalFunction( "rlDrawVertexArrayElements", lrlglDrawVertexArrayElements );
+	assingGlobalFunction( "rlDrawVertexArrayInstanced", lrlglDrawVertexArrayInstanced );
+	assingGlobalFunction( "rlDrawVertexArrayElementsInstanced", lrlglDrawVertexArrayElementsInstanced );
 		/* Textures management. */
 	assingGlobalFunction( "rlLoadTexture", lrlglLoadTexture );
 	assingGlobalFunction( "rlLoadTextureDepth", lrlglLoadTextureDepth );
-- 
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