gsdx: Add new tooltips and descriptions.

For Linux and Windows, add tooltip descriptions for AF, AA1, extra
rendering threads, Enable Shade Boost, FX Shader/External Shader, FXAA.

For Windows, also add Alpha Correction and Logarithmic Z tooltips.

For Linux, add software mipmap tooltip.

Thanks to tsunami2311, ssakash, gregory38 and whoever did the wiki for
helping with descriptions.

plugins/GSdx/GSLinuxDialog.cpp

@@ -314,6 +314,7 @@ void populate_hw_table(GtkWidget* hw_table)
 	AddTooltip(acc_bld_label, acc_bld_combo_box, IDC_ACCURATE_BLEND_UNIT);
 	AddTooltip(tc_depth_check, IDC_TC_DEPTH);
 	AddTooltip(filter_label, filter_combo_box, IDC_FILTER);
+	AddTooltip(af_label, af_combo_box, IDC_AFCOMBO);
 
 	s_table_line = 0;
 	InsertWidgetInTable(hw_table, paltex_check, tc_depth_check);
@@ -357,6 +358,10 @@ void populate_sw_table(GtkWidget* sw_table)
 	GtkWidget* mipmap_check     = CreateCheckBox("Mipmap", "mipmap", true);
 	GtkWidget* spin_thread_check= CreateCheckBox("Disable thread sleeping (6+ cores CPU)", "spin_thread");
 
+	AddTooltip(aa_check, IDC_AA1);
+	AddTooltip(mipmap_check, IDC_MIPMAP);
+	AddTooltip(threads_label, threads_spin, IDC_SWTHREADS);
+
 	s_table_line = 0;
 	InsertWidgetInTable(sw_table , threads_label     , threads_spin);
 	InsertWidgetInTable(sw_table , aa_check, mipmap_check);
@@ -384,6 +389,10 @@ void populate_shader_table(GtkWidget* shader_table)
 	GtkWidget* sb_saturation       = CreateScale("ShadeBoost_Saturation", 50);
 	GtkWidget* sb_saturation_label = gtk_label_new("Shade Boost Saturation");
 
+	AddTooltip(shadeboost_check, IDC_SHADEBOOST);
+	AddTooltip(shaderfx_check, IDC_SHADER_FX);
+	AddTooltip(fxaa_check, IDC_FXAA);
+
 	s_table_line = 0;
 	InsertWidgetInTable(shader_table , fxaa_check);
 	InsertWidgetInTable(shader_table , shadeboost_check);

plugins/GSdx/GSSetting.cpp

@@ -104,6 +104,30 @@ const char* dialog_message(int ID, bool* updateText) {
 				"Ultra:\nThe blending unit will be completely emulated by the shader. It is ultra slow! It is intended for debug.";
 		case IDC_TC_DEPTH:
 			return "Allows the conversion of Depth buffer from/to Color buffer. It is used for blur & depth of field effects";
+		case IDC_AFCOMBO:
+			return "Reduces texture aliasing at extreme viewing angles. High performance impact.";
+		case IDC_AA1:
+			return "Internal GS feature. Reduces edge aliasing of lines and triangles when the game requests it.";
+		case IDC_SWTHREADS:
+		case IDC_SWTHREADS_EDIT:
+			return "Increases number of threads used for rendering. Optimal setting depends on CPU.";
+		case IDC_SHADEBOOST:
+			return "Allows brightness, contrast and saturation to be manually adjusted.";
+		case IDC_SHADER_FX:
+			return "Enables external shader for additional post-processing effects.";
+		case IDC_FXAA:
+			return "Enables fast approximate anti-aliasing. Small performance impact.";
+#ifdef _WIN32
+		// DX9 only
+		case IDC_FBA:
+			return "Makes textures partially or fully transparent as required by emulation. May cause unusual slowdowns for some games.";
+		case IDC_LOGZ:
+			return "Treat depth as logarithmic instead of linear. Recommended setting is on unless it causes graphical glitches.";
+#endif
+#ifdef __linux__
+		case IDC_MIPMAP:
+			return "Enables mipmapping, which some games require to render correctly. Turn off only for debug purposes.";
+#endif
 		default:
 			if (updateText)
 				*updateText = false;

plugins/GSdx/GSSetting.h

@@ -62,6 +62,14 @@ enum {
 	IDC_ACCURATE_BLEND_UNIT,
 	IDC_ACCURATE_DATE,
 	IDC_TC_DEPTH,
-	IDC_CRC_LEVEL
+	IDC_CRC_LEVEL,
+	IDC_AFCOMBO,
+	IDC_AA1,
+	IDC_SWTHREADS,
+	IDC_SWTHREADS_EDIT,
+	IDC_SHADEBOOST,
+	IDC_SHADER_FX,
+	IDC_FXAA,
+	IDC_MIPMAP
 };
 #endif

plugins/GSdx/GSSettingsDlg.cpp

@@ -190,6 +190,15 @@ void GSSettingsDlg::OnInit()
 	AddTooltip(IDC_ACCURATE_DATE);
 	AddTooltip(IDC_ACCURATE_BLEND_UNIT);
 	AddTooltip(IDC_TC_DEPTH);
+	AddTooltip(IDC_AFCOMBO);
+	AddTooltip(IDC_AA1);
+	AddTooltip(IDC_SWTHREADS);
+	AddTooltip(IDC_SWTHREADS_EDIT);
+	AddTooltip(IDC_SHADEBOOST);
+	AddTooltip(IDC_SHADER_FX);
+	AddTooltip(IDC_FXAA);
+	AddTooltip(IDC_FBA);
+	AddTooltip(IDC_LOGZ);
 
 	UpdateControls();
 }
@@ -423,7 +432,7 @@ void GSSettingsDlg::UpdateControls()
 
 		// Hacks
 		EnableWindow(GetDlgItem(m_hWnd, IDC_HACKS_ENABLED), hw);
-		EnableWindow(GetDlgItem(m_hWnd, IDC_HACKSBUTTON), hw /*&& IsDlgButtonChecked(m_hWnd, IDC_HACKS_ENABLED) == BST_CHECKED*/);
+		EnableWindow(GetDlgItem(m_hWnd, IDC_HACKSBUTTON), hw && IsDlgButtonChecked(m_hWnd, IDC_HACKS_ENABLED));
 	}
 }