HUD scaling via triangle API

Author: Toodles2You

cl_dll/cdll_int.cpp

@@ -53,6 +53,8 @@ void InitInput();
 void EV_HookEvents();
 void IN_Commands();
 
+void CL_DrawCrosshair();
+
 /*
 ================================
 HUD_GetHullBounds
@@ -208,6 +210,8 @@ int DLLEXPORT HUD_Redraw(float time, int intermission)
 {
 	//	RecClHudRedraw(time, intermission);
 
+	CL_DrawCrosshair();
+
 	gHUD.Redraw(time, 0 != intermission);
 
 	return 1;

cl_dll/cl_util.h

@@ -44,46 +44,51 @@ inline const char* CVAR_GET_STRING(const char* x) { return gEngfuncs.pfnGetCvarS
 inline struct cvar_s* CVAR_CREATE(const char* cv, const char* val, const int flags) { return gEngfuncs.pfnRegisterVariable((char*)cv, (char*)val, flags); }
 
 #define SPR_Load (*gEngfuncs.pfnSPR_Load)
-#define SPR_Set (*gEngfuncs.pfnSPR_Set)
+void SPR_Set(HSPRITE hPic, int r, int g, int b);
 #define SPR_Frames (*gEngfuncs.pfnSPR_Frames)
 #define SPR_GetList (*gEngfuncs.pfnSPR_GetList)
 
 // SPR_Draw  draws a the current sprite as solid
-#define SPR_Draw (*gEngfuncs.pfnSPR_Draw)
+void SPR_Draw(int frame, int x, int y, const Rect* prc);
 // SPR_DrawHoles  draws the current sprites,  with color index255 not drawn (transparent)
-#define SPR_DrawHoles (*gEngfuncs.pfnSPR_DrawHoles)
+void SPR_DrawHoles(int frame, int x, int y, const Rect* prc);
 // SPR_DrawAdditive  adds the sprites RGB values to the background  (additive transulency)
-#define SPR_DrawAdditive (*gEngfuncs.pfnSPR_DrawAdditive)
+void SPR_DrawAdditive(int frame, int x, int y, const Rect* prc);
 
 // SPR_EnableScissor  sets a clipping rect for HUD sprites.  (0,0) is the top-left hand corner of the screen.
 #define SPR_EnableScissor (*gEngfuncs.pfnSPR_EnableScissor)
 // SPR_DisableScissor  disables the clipping rect
 #define SPR_DisableScissor (*gEngfuncs.pfnSPR_DisableScissor)
 //
-#define FillRGBA (*gEngfuncs.pfnFillRGBA)
+void FillRGBA(int x, int y, int width, int height, int r, int g, int b, int a);
 
 
-// ScreenHeight returns the height of the screen, in pixels
-#define ScreenHeight (gHUD.m_scrinfo.iHeight)
-// ScreenWidth returns the width of the screen, in pixels
-#define ScreenWidth (gHUD.m_scrinfo.iWidth)
+// ScreenHeight returns the reference height of the HUD
+#define ScreenHeight (gHUD.m_iConHeight)
+// ScreenWidth returns the reference width of the HUD
+#define ScreenWidth (gHUD.m_iConWidth)
+
+// RealScreenHeight returns the height of the screen, in pixels
+#define RealScreenHeight (gHUD.m_scrinfo.iHeight)
+// RealScreenWidth returns the width of the screen, in pixels
+#define RealScreenWidth (gHUD.m_scrinfo.iWidth)
 
 #define BASE_XRES 640.f
 
 // use this to project world coordinates to screen coordinates
-#define XPROJECT(x) ((1.0f + (x)) * ScreenWidth * 0.5f)
-#define YPROJECT(y) ((1.0f - (y)) * ScreenHeight * 0.5f)
+#define XPROJECT(x) ((1.0f + (x)) * RealScreenWidth * 0.5f)
+#define YPROJECT(y) ((1.0f - (y)) * RealScreenHeight * 0.5f)
 
-#define XRES(x) ((x) * ((float)ScreenWidth / 640))
-#define YRES(y) ((y) * ((float)ScreenHeight / 480))
-#define XRES_HD(x) ((x) * V_max(1, (float)ScreenWidth / 1280))
-#define YRES_HD(y) ((y) * V_max(1, (float)ScreenHeight / 720))
+#define XRES(x) ((x) * ((float)RealScreenWidth / 640))
+#define YRES(y) ((y) * ((float)RealScreenHeight / 480))
+#define XRES_HD(x) ((x) * V_max(1, (float)RealScreenWidth / 1280))
+#define YRES_HD(y) ((y) * V_max(1, (float)RealScreenHeight / 720))
 
 #define GetScreenInfo (*gEngfuncs.pfnGetScreenInfo)
 #define ServerCmd (*gEngfuncs.pfnServerCmd)
 #define EngineClientCmd (*gEngfuncs.pfnClientCmd)
 #define EngineFilteredClientCmd (*gEngfuncs.pfnFilteredClientCmd)
-#define SetCrosshair (*gEngfuncs.pfnSetCrosshair)
+void SetCrosshair(HSPRITE hspr, Rect rc, int r, int g, int b);
 #define AngleVectors (*gEngfuncs.pfnAngleVectors)
 
 
@@ -99,12 +104,20 @@ inline int TextMessageDrawChar(int x, int y, int number, int r, int g, int b)
 
 inline int DrawConsoleString(int x, int y, const char* string)
 {
-	return gEngfuncs.pfnDrawConsoleString(x, y, (char*)string);
+	const int width = gEngfuncs.pfnDrawConsoleString(
+		gHUD.m_flOffsetX + gHUD.m_flScaleX * x,
+		gHUD.m_flOffsetY + gHUD.m_flScaleY * y,
+		(char*)string);
+
+	return (width - gHUD.m_flOffsetX) / gHUD.m_flScaleX;
 }
 
 inline void GetConsoleStringSize(const char* string, int* width, int* height)
 {
 	gEngfuncs.pfnDrawConsoleStringLen(string, width, height);
+
+	*width = *width / gHUD.m_flScaleX;
+	*height = *height / gHUD.m_flScaleY;
 }
 
 inline int ConsoleStringLen(const char* string)

cl_dll/hud.cpp

@@ -30,6 +30,11 @@
 #include "demo_api.h"
 #include "vgui_ScorePanel.h"
 
+#include "com_model.h"
+#include "r_studioint.h"
+
+extern engine_studio_api_t IEngineStudio;
+
 hud_player_info_t g_PlayerInfoList[MAX_PLAYERS_HUD + 1];	// player info from the engine
 extra_player_info_t g_PlayerExtraInfo[MAX_PLAYERS_HUD + 1]; // additional player info sent directly to the client dll
 
@@ -86,6 +91,7 @@ cvar_t* cl_rollangle = nullptr;
 cvar_t* cl_rollspeed = nullptr;
 cvar_t* cl_bobtilt = nullptr;
 cvar_t* r_decals = nullptr;
+cvar_t* crosshair = nullptr;
 
 void ShutdownInput();
 
@@ -336,6 +342,8 @@ void CHud::Init()
 	cl_rollspeed = CVAR_CREATE("cl_rollspeed", "200", FCVAR_ARCHIVE);
 	cl_bobtilt = CVAR_CREATE("cl_bobtilt", "0", FCVAR_ARCHIVE);
 	r_decals = gEngfuncs.pfnGetCvarPointer("r_decals");
+	m_pCvarScale = CVAR_CREATE("hud_scale", "1", FCVAR_ARCHIVE);
+	crosshair = gEngfuncs.pfnGetCvarPointer("crosshair");
 
 	m_pSpriteList = NULL;
 
@@ -423,6 +431,10 @@ void CHud::VidInit()
 	m_scrinfo.iSize = sizeof(m_scrinfo);
 	GetScreenInfo(&m_scrinfo);
 
+	m_bShouldScale = IEngineStudio.IsHardware() && m_pCvarScale->value != 0.0F;
+
+	UpdateScreenInfo();
+
 	// ----------
 	// Load Sprites
 	// ---------
@@ -707,3 +719,59 @@ float CHud::GetSensitivity()
 {
 	return m_flMouseSensitivity;
 }
+
+bool CHud::ShouldScale()
+{
+	return m_bShouldScale;
+}
+
+void CHud::UpdateScreenInfo()
+{
+	m_iScaleValue = m_pCvarScale->value;
+
+	if (!ShouldScale())
+	{
+		// default values for functions that may still reference them
+
+		m_iConWidth = RealScreenWidth;
+		m_iConHeight = RealScreenHeight; 
+
+		m_flScaleX = m_flScaleY = 1.0F;
+		m_flOffsetX = m_flOffsetY = 0.0F;
+
+		return;
+	}
+
+	// hud reference size
+	m_iConWidth = V_min(640, RealScreenWidth);
+	m_iConHeight = V_min(480, RealScreenHeight);
+
+	// set the scaling factor by using the minor axis
+
+	if (RealScreenWidth >= RealScreenHeight)
+	{
+		// letterbox or widescreen
+
+		m_flScaleX = m_flScaleY = RealScreenHeight / (float)ScreenHeight;
+
+		// adapt to the real aspect ratio
+		m_iConWidth = m_iConHeight * (RealScreenWidth / (float)RealScreenHeight);
+	}
+	else
+	{
+		// portrait (half-life mobile confirmed?!)
+
+		m_flScaleX = m_flScaleY = RealScreenWidth / (float)ScreenWidth;
+
+		// adapt to the real aspect ratio
+		m_iConHeight = m_iConWidth * (RealScreenHeight / (float)RealScreenWidth);
+	}
+
+	// keep the reference sizes even
+	m_iConWidth = (int)(m_iConWidth / 2) * 2;
+	m_iConHeight = (int)(m_iConHeight / 2) * 2;
+
+	// set the scaling offsets
+	m_flOffsetX = (RealScreenWidth - ScreenWidth * m_flScaleX) / 2.0;
+	m_flOffsetY = (RealScreenHeight - ScreenHeight * m_flScaleY) / 2.0;
+}

cl_dll/hud.h

@@ -607,6 +607,19 @@ class CHud
 	void AddHudElem(CHudBase* p);
 
 	float GetSensitivity();
+
+	cvar_t* m_pCvarScale;
+	int m_iScaleValue;
+	bool m_bShouldScale;
+	int m_iConWidth;
+	int m_iConHeight;
+	float m_flScaleX;
+	float m_flScaleY;
+	float m_flOffsetX;
+	float m_flOffsetY;
+
+	bool ShouldScale();
+	void UpdateScreenInfo();
 };
 
 extern CHud gHUD;

cl_dll/hud_redraw.cpp

@@ -41,6 +41,11 @@ void CHud::Think()
 	m_scrinfo.iSize = sizeof(m_scrinfo);
 	GetScreenInfo(&m_scrinfo);
 
+	if (m_iScaleValue != (int)m_pCvarScale->value)
+	{
+		UpdateScreenInfo();
+	}
+
 	int newfov;
 	HUDLIST* pList = m_pHudList;
 
@@ -215,7 +220,12 @@ void ScaleColors(int& r, int& g, int& b, int a)
 
 int CHud::DrawHudString(int xpos, int ypos, int iMaxX, const char* szIt, int r, int g, int b)
 {
-	return xpos + gEngfuncs.pfnDrawString(xpos, ypos, szIt, r, g, b);
+	const int width = gEngfuncs.pfnDrawString(
+		m_flOffsetX + m_flScaleX * xpos, 
+		m_flOffsetY + m_flScaleY * ypos,
+		szIt, r, g, b);
+
+	return xpos + (width - m_flOffsetX) / m_flScaleX;
 }
 
 int CHud::DrawHudNumberString(int xpos, int ypos, int iMinX, int iNumber, int r, int g, int b)
@@ -228,7 +238,12 @@ int CHud::DrawHudNumberString(int xpos, int ypos, int iMinX, int iNumber, int r,
 // draws a string from right to left (right-aligned)
 int CHud::DrawHudStringReverse(int xpos, int ypos, int iMinX, const char* szString, int r, int g, int b)
 {
-	return xpos - gEngfuncs.pfnDrawStringReverse(xpos, ypos, szString, r, g, b);
+	const int width = gEngfuncs.pfnDrawStringReverse(
+		m_flOffsetX + m_flScaleX * xpos, 
+		m_flOffsetY + m_flScaleY * ypos,
+		szString, r, g, b);
+
+	return xpos + (width - m_flOffsetX) / m_flScaleX;
 }
 
 int CHud::DrawHudNumber(int x, int y, int iFlags, int iNumber, int r, int g, int b)

cl_dll/message.cpp

@@ -96,18 +96,18 @@ int CHudMessage::XPosition(float x, int width, int totalWidth)
 
 	if (x == -1)
 	{
-		xPos = (ScreenWidth - width) / 2;
+		xPos = (RealScreenWidth - width) / 2;
 	}
 	else
 	{
 		if (x < 0)
-			xPos = (1.0 + x) * ScreenWidth - totalWidth; // Alight right
+			xPos = (1.0 + x) * RealScreenWidth - totalWidth; // Alight right
 		else
-			xPos = x * ScreenWidth;
+			xPos = x * RealScreenWidth;
 	}
 
-	if (xPos + width > ScreenWidth)
-		xPos = ScreenWidth - width;
+	if (xPos + width > RealScreenWidth)
+		xPos = RealScreenWidth - width;
 	else if (xPos < 0)
 		xPos = 0;
 
@@ -120,18 +120,18 @@ int CHudMessage::YPosition(float y, int height)
 	int yPos;
 
 	if (y == -1) // Centered?
-		yPos = (ScreenHeight - height) * 0.5;
+		yPos = (RealScreenHeight - height) * 0.5;
 	else
 	{
 		// Alight bottom?
 		if (y < 0)
-			yPos = (1.0 + y) * ScreenHeight - height; // Alight bottom
+			yPos = (1.0 + y) * RealScreenHeight - height; // Alight bottom
 		else										  // align top
-			yPos = y * ScreenHeight;
+			yPos = y * RealScreenHeight;
 	}
 
-	if (yPos + height > ScreenHeight)
-		yPos = ScreenHeight - height;
+	if (yPos + height > RealScreenHeight)
+		yPos = RealScreenHeight - height;
 	else if (yPos < 0)
 		yPos = 0;
 
@@ -196,7 +196,7 @@ void CHudMessage::MessageScanNextChar()
 
 	if (m_parms.pMessage->effect == 1 && m_parms.charTime != 0)
 	{
-		if (m_parms.x >= 0 && m_parms.y >= 0 && (m_parms.x + gHUD.m_scrinfo.charWidths[m_parms.text]) <= ScreenWidth)
+		if (m_parms.x >= 0 && m_parms.y >= 0 && (m_parms.x + gHUD.m_scrinfo.charWidths[m_parms.text]) <= RealScreenWidth)
 			TextMessageDrawChar(m_parms.x, m_parms.y, m_parms.text, m_parms.pMessage->r2, m_parms.pMessage->g2, m_parms.pMessage->b2);
 	}
 }
@@ -305,7 +305,7 @@ void CHudMessage::MessageDrawScan(client_textmessage_t* pMessage, float time)
 			int next = m_parms.x + gHUD.m_scrinfo.charWidths[m_parms.text];
 			MessageScanNextChar();
 
-			if (m_parms.x >= 0 && m_parms.y >= 0 && next <= ScreenWidth)
+			if (m_parms.x >= 0 && m_parms.y >= 0 && next <= RealScreenWidth)
 				TextMessageDrawChar(m_parms.x, m_parms.y, m_parms.text, m_parms.r, m_parms.g, m_parms.b);
 			m_parms.x = next;
 		}