From 63e414fc8a7ec04a0710a05ac9ce610fbb15f1e5 Mon Sep 17 00:00:00 2001
From: Ethan Yonker <dees_troy@teamw.in>
Date: Fri, 6 Feb 2015 15:44:39 -0600
Subject: Scale the GUI to fit the screen

With this patch set, if needed, we scale the images during early
boot. TTF support is needed to properly scale the font. No font
scaling is done on the old style fixed width font used in the
console.

Special thanks to _that for figuring out the scaling and blending
function calls to make this possible.

Change-Id: If2f79bef16d6db2e1298bfc3d00c9bcca2bee37a
---
 gui/pages.cpp | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'gui/pages.cpp')

diff --git a/gui/pages.cpp b/gui/pages.cpp
index 8fef7b4c8..47e2edde8 100644
--- a/gui/pages.cpp
+++ b/gui/pages.cpp
@@ -41,6 +41,7 @@ extern "C" {
 #include "../minuitwrp/minui.h"
 #include "../minzip/SysUtil.h"
 #include "../minzip/Zip.h"
+#include "gui.h"
 }
 
 #include "rapidxml.hpp"
@@ -113,6 +114,7 @@ bool LoadPlacement(xml_node<>* node, int* x, int* y, int* w /* = NULL */, int* h
 		value = node->first_attribute("x")->value();
 		DataManager::GetValue(value, value);
 		*x = atol(value.c_str());
+		*x = scale_theme_x(*x);
 		*x += tw_x_offset;
 	}
 
@@ -121,6 +123,7 @@ bool LoadPlacement(xml_node<>* node, int* x, int* y, int* w /* = NULL */, int* h
 		value = node->first_attribute("y")->value();
 		DataManager::GetValue(value, value);
 		*y = atol(value.c_str());
+		*y = scale_theme_y(*y);
 		*y += tw_y_offset;
 	}
 
@@ -129,6 +132,7 @@ bool LoadPlacement(xml_node<>* node, int* x, int* y, int* w /* = NULL */, int* h
 		value = node->first_attribute("w")->value();
 		DataManager::GetValue(value, value);
 		*w = atol(value.c_str());
+		*w = scale_theme_x(*w);
 	}
 
 	if (h && node->first_attribute("h"))
@@ -136,6 +140,7 @@ bool LoadPlacement(xml_node<>* node, int* x, int* y, int* w /* = NULL */, int* h
 		value = node->first_attribute("h")->value();
 		DataManager::GetValue(value, value);
 		*h = atol(value.c_str());
+		*h = scale_theme_y(*h);
 	}
 
 	if (placement && node->first_attribute("placement"))
@@ -581,7 +586,58 @@ int PageSet::Load(ZipArchive* package)
 	if (!parent)
 		parent = mDoc.first_node("install");
 
+	set_scale_values(1, 1); // Reset any previous scaling values
+
 	// Now, let's parse the XML
+	LOGINFO("Checking resolution...\n");
+	child = parent->first_node("details");
+	if (child) {
+		xml_node<>* resolution = child->first_node("resolution");
+		if (resolution) {
+			xml_attribute<>* width_attr = resolution->first_attribute("width");
+			xml_attribute<>* height_attr = resolution->first_attribute("height");
+			xml_attribute<>* noscale_attr = resolution->first_attribute("noscaling");
+			if (width_attr && height_attr && !noscale_attr) {
+				int width = atoi(width_attr->value());
+				int height = atoi(height_attr->value());
+				int offx = 0, offy = 0;
+#ifdef TW_ROUND_SCREEN
+				xml_node<>* roundscreen = child->first_node("roundscreen");
+				if (roundscreen) {
+					LOGINFO("TW_ROUND_SCREEN := true, using round screen XML settings.\n");
+					xml_attribute<>* offx_attr = roundscreen->first_attribute("offset_x");
+					xml_attribute<>* offy_attr = roundscreen->first_attribute("offset_y");
+					if (offx_attr) {
+						offx = atoi(offx_attr->value());
+					}
+					if (offy_attr) {
+						offy = atoi(offy_attr->value());
+					}
+				}
+#endif
+				if (width != 0 && height != 0) {
+					float scale_w = ((float)gr_fb_width() - ((float)offx * 2.0)) / (float)width;
+					float scale_h = ((float)gr_fb_height() - ((float)offy * 2.0)) / (float)height;
+#ifdef TW_ROUND_SCREEN
+					float scale_off_w = (float)gr_fb_width() / (float)width;
+					float scale_off_h = (float)gr_fb_height() / (float)height;
+					tw_x_offset = offx * scale_off_w;
+					tw_y_offset = offy * scale_off_h;
+#endif
+					if (scale_w != 1 || scale_h != 1) {
+						LOGINFO("Scaling theme width %fx and height %fx, offsets x: %i y: %i\n", scale_w, scale_h, tw_x_offset, tw_y_offset);
+						set_scale_values(scale_w, scale_h);
+					}
+				}
+			} else {
+				LOGINFO("XML does not contain width and height, no scaling will be applied\n");
+			}
+		} else {
+			LOGINFO("XML contains no resolution tag, no scaling will be applied.\n");
+		}
+	} else {
+		LOGINFO("XML contains no details tag, no scaling will be applied.\n");
+	}
 	LOGINFO("Loading resources...\n");
 	child = parent->first_node("resources");
 	if (child)
-- 
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