From 57aa63284185ae93294385050286b221b347bad7 Mon Sep 17 00:00:00 2001
From: Alex Szpakowski <slime73@gmail.com>
Date: Wed, 17 Jul 2013 00:35:25 -0300
Subject: [PATCH] Added love.graphics.getMaxImageSize

---
 src/modules/graphics/opengl/Graphics.cpp      | 5 +++++
 src/modules/graphics/opengl/Graphics.h        | 6 ++++++
 src/modules/graphics/opengl/wrap_Graphics.cpp | 7 +++++++
 src/modules/graphics/opengl/wrap_Graphics.h   | 1 +
 4 files changed, 19 insertions(+)

diff --git a/src/modules/graphics/opengl/Graphics.cpp b/src/modules/graphics/opengl/Graphics.cpp
index a08921eba..54ee6df31 100644
--- a/src/modules/graphics/opengl/Graphics.cpp
+++ b/src/modules/graphics/opengl/Graphics.cpp
@@ -394,6 +394,11 @@ unsigned char Graphics::getAlphaTestRef()
 	return ref * 255;
 }
 
+int Graphics::getMaxImageSize() const
+{
+	return gl.getMaxTextureSize();
+}
+
 Image *Graphics::newImage(love::image::ImageData *data)
 {
 	// Create the image.
diff --git a/src/modules/graphics/opengl/Graphics.h b/src/modules/graphics/opengl/Graphics.h
index d5eb4fa72..b945d990d 100644
--- a/src/modules/graphics/opengl/Graphics.h
+++ b/src/modules/graphics/opengl/Graphics.h
@@ -216,6 +216,12 @@ public:
 	 */
 	unsigned char getAlphaTestRef();
 
+	/**
+	 * Gets the maximum supported width or height of Images and Canvases on this
+	 * system.
+	 **/
+	int getMaxImageSize() const;
+
 	/**
 	 * Creates an Image object with padding and/or optimization.
 	 **/
diff --git a/src/modules/graphics/opengl/wrap_Graphics.cpp b/src/modules/graphics/opengl/wrap_Graphics.cpp
index d66988fe7..71d579754 100644
--- a/src/modules/graphics/opengl/wrap_Graphics.cpp
+++ b/src/modules/graphics/opengl/wrap_Graphics.cpp
@@ -175,6 +175,12 @@ int w_getAlphaTest(lua_State *L)
 	return 2;
 }
 
+int w_getMaxImageSize(lua_State *L)
+{
+	lua_pushinteger(L, instance->getMaxImageSize());
+	return 1;
+}
+
 int w_newImage(lua_State *L)
 {
 	love::image::ImageData *data = 0;
@@ -1544,6 +1550,7 @@ static const luaL_Reg functions[] =
 	{ "getPointSize", w_getPointSize },
 	{ "getPointStyle", w_getPointStyle },
 	{ "getMaxPointSize", w_getMaxPointSize },
+	{ "getMaxImageSize", w_getMaxImageSize },
 	{ "newScreenshot", w_newScreenshot },
 	{ "setCanvas", w_setCanvas },
 	{ "setCanvases", w_setCanvases },
diff --git a/src/modules/graphics/opengl/wrap_Graphics.h b/src/modules/graphics/opengl/wrap_Graphics.h
index b012fd3a7..a521b7f9f 100644
--- a/src/modules/graphics/opengl/wrap_Graphics.h
+++ b/src/modules/graphics/opengl/wrap_Graphics.h
@@ -50,6 +50,7 @@ int w_getScissor(lua_State *L);
 int w_setStencil(lua_State *L);
 int w_setAlphaTest(lua_State *L);
 int w_getAlphaTest(lua_State *L);
+int w_getMaxImageSize(lua_State *L);
 int w_newImage(lua_State *L);
 int w_newGeometry(lua_State *L);
 int w_newQuad(lua_State *L);