Added high-dpi / retina support to the no-game screen; additional minor tweaks and cleanup.

src/modules/graphics/Quad.cpp

@@ -29,7 +29,7 @@ namespace love
 namespace graphics
 {
 
-Quad::Quad(const Quad::Viewport &v, float sw, float sh)
+Quad::Quad(const Quad::Viewport &v, double sw, double sh)
 	: sw(sw)
 	, sh(sh)
 {
@@ -41,7 +41,7 @@ Quad::~Quad()
 {
 }
 
-void Quad::refresh(const Quad::Viewport &v, float sw, float sh)
+void Quad::refresh(const Quad::Viewport &v, double sw, double sh)
 {
 	viewport = v;
 
@@ -53,20 +53,20 @@ void Quad::refresh(const Quad::Viewport &v, float sw, float sh)
 	vertices[0].x = 0.0f;
 	vertices[0].y = 0.0f;
 	vertices[1].x = 0.0f;
-	vertices[1].y = v.h;
-	vertices[2].x = v.w;
+	vertices[1].y = (float) v.h;
+	vertices[2].x = (float) v.w;
 	vertices[2].y = 0.0f;
-	vertices[3].x = v.w;
-	vertices[3].y = v.h;
+	vertices[3].x = (float) v.w;
+	vertices[3].y = (float) v.h;
 
-	vertices[0].s = v.x/sw;
-	vertices[0].t = v.y/sh;
-	vertices[1].s = v.x/sw;
-	vertices[1].t = (v.y+v.h)/sh;
-	vertices[2].s = (v.x+v.w)/sw;
-	vertices[2].t = v.y/sh;
-	vertices[3].s = (v.x+v.w)/sw;
-	vertices[3].t = (v.y+v.h)/sh;
+	vertices[0].s = (float) (v.x/sw);
+	vertices[0].t = (float) (v.y/sh);
+	vertices[1].s = (float) (v.x/sw);
+	vertices[1].t = (float) ((v.y+v.h)/sh);
+	vertices[2].s = (float) ((v.x+v.w)/sw);
+	vertices[2].t = (float) (v.y/sh);
+	vertices[3].s = (float) ((v.x+v.w)/sw);
+	vertices[3].t = (float) ((v.y+v.h)/sh);
 }
 
 void Quad::setViewport(const Quad::Viewport &v)

src/modules/graphics/Quad.h

@@ -36,14 +36,14 @@ public:
 
 	struct Viewport
 	{
-		float x, y;
-		float w, h;
+		double x, y;
+		double w, h;
 	};
 
-	Quad(const Viewport &v, float sw, float sh);
+	Quad(const Viewport &v, double sw, double sh);
 	virtual ~Quad();
 
-	void refresh(const Viewport &v, float sw, float sh);
+	void refresh(const Viewport &v, double sw, double sh);
 	void setViewport(const Viewport &v);
 	Viewport getViewport() const;
 
@@ -54,8 +54,8 @@ private:
 	Vertex vertices[4];
 
 	Viewport viewport;
-	float sw;
-	float sh;
+	double sw;
+	double sh;
 
 }; // Quad
 

src/modules/graphics/opengl/GLBuffer.cpp

@@ -164,11 +164,9 @@ void GLBuffer::setMappedRangeModified(size_t offset, size_t modifiedsize)
 	// a and b are marked as modified.
 
 	size_t old_range_end = modified_offset + modified_size;
-
 	modified_offset = std::min(modified_offset, offset);
 
 	size_t new_range_end = std::max(offset + modifiedsize, old_range_end);
-
 	modified_size = new_range_end - modified_offset;
 }
 

src/modules/graphics/opengl/Graphics.cpp

@@ -708,7 +708,7 @@ Image *Graphics::newImage(const std::vector<love::image::CompressedImageData *>
 	return new Image(cdata, flags);
 }
 
-Quad *Graphics::newQuad(Quad::Viewport v, float sw, float sh)
+Quad *Graphics::newQuad(Quad::Viewport v, double sw, double sh)
 {
 	return new Quad(v, sw, sh);
 }

src/modules/graphics/opengl/Graphics.h

@@ -162,7 +162,7 @@ public:
 	Image *newImage(const std::vector<love::image::ImageData *> &data, const Image::Flags &flags);
 	Image *newImage(const std::vector<love::image::CompressedImageData *> &cdata, const Image::Flags &flags);
 
-	Quad *newQuad(Quad::Viewport v, float sw, float sh);
+	Quad *newQuad(Quad::Viewport v, double sw, double sh);
 
 	/**
 	 * Creates a Font object.

src/modules/graphics/opengl/wrap_Graphics.cpp

@@ -368,13 +368,13 @@ int w_newImage(lua_State *L)
 int w_newQuad(lua_State *L)
 {
 	Quad::Viewport v;
-	v.x = (float) luaL_checknumber(L, 1);
-	v.y = (float) luaL_checknumber(L, 2);
-	v.w = (float) luaL_checknumber(L, 3);
-	v.h = (float) luaL_checknumber(L, 4);
+	v.x = luaL_checknumber(L, 1);
+	v.y = luaL_checknumber(L, 2);
+	v.w = luaL_checknumber(L, 3);
+	v.h = luaL_checknumber(L, 4);
 
-	float sw = (float) luaL_checknumber(L, 5);
-	float sh = (float) luaL_checknumber(L, 6);
+	double sw = luaL_checknumber(L, 5);
+	double sh = luaL_checknumber(L, 6);
 
 	Quad *quad = instance()->newQuad(v, sw, sh);
 	luax_pushtype(L, GRAPHICS_QUAD_ID, quad);

src/modules/graphics/opengl/wrap_Graphics.lua

@@ -159,7 +159,7 @@ precision mediump float;
 #endif
 
 varying mediump vec4 VaryingTexCoord;
-varying lowp vec4 VaryingColor;
+varying mediump vec4 VaryingColor;
 
 #define love_Canvases gl_FragData
 
@@ -307,7 +307,7 @@ vec4 position(mat4 transform_proj, vec4 vertpos) {
 	return transform_proj * vertpos;
 }]],
 	pixel = [[
-vec4 effect(lowp vec4 vcolor, Image tex, vec2 texcoord, vec2 pixcoord) {
+vec4 effect(mediump vec4 vcolor, Image tex, vec2 texcoord, vec2 pixcoord) {
 	return Texel(tex, texcoord) * vcolor;
 }]]
 }

src/modules/graphics/wrap_Quad.cpp

@@ -36,17 +36,17 @@ int w_Quad_setViewport(lua_State *L)
 	Quad *quad = luax_checkquad(L, 1);
 
 	Quad::Viewport v;
-	v.x = (float) luaL_checknumber(L, 2);
-	v.y = (float) luaL_checknumber(L, 3);
-	v.w = (float) luaL_checknumber(L, 4);
-	v.h = (float) luaL_checknumber(L, 5);
+	v.x = luaL_checknumber(L, 2);
+	v.y = luaL_checknumber(L, 3);
+	v.w = luaL_checknumber(L, 4);
+	v.h = luaL_checknumber(L, 5);
 
 	if (lua_isnoneornil(L, 6))
 		quad->setViewport(v);
 	else
 	{
-		float sw = (float) luaL_checknumber(L, 6);
-		float sh = (float) luaL_checknumber(L, 7);
+		double sw = luaL_checknumber(L, 6);
+		double sh = luaL_checknumber(L, 7);
 		quad->refresh(v, sw, sh);
 	}