Author: jack9267

Client/CBBFont.cpp

@@ -0,0 +1,160 @@
+// PUBLIC DOMAIN
+/*
+	Based off code by DrunkenHyena - Many thanks :)
+*/
+
+#include "StdInc.h"
+
+extern D3DMATRIX matView;
+
+CBBFont::CBBFont(IDirect3DDevice8* pDevice, char* pFileName)
+{
+	m_pDevice			= pDevice;
+	m_pTexture			= NULL;
+	m_pVB				= NULL;
+	m_dwSavedStates		= 0;
+	m_dwFontStates		= 0;
+	m_fCharWidth		= 0.0f;
+	m_fCharHeight		= 0.0f;
+	m_fScale			= 0.01f;
+
+	m_pTextureFileName = (char*)malloc(strlen(pFileName) + 5);
+	m_pMetricsFileName = (char*)malloc(strlen(pFileName) + 5);
+	sprintf(m_pTextureFileName, "%s.png", pFileName);
+	sprintf(m_pMetricsFileName, "%s.dat", pFileName);
+	memset((void*)&m_Metrics, 0, sizeof(m_Metrics));
+}
+
+CBBFont::~CBBFont()
+{
+	m_pDevice->DeleteStateBlock(m_dwSavedStates);
+	m_pDevice->DeleteStateBlock(m_dwFontStates);
+	free(m_pTextureFileName);
+	free(m_pMetricsFileName);
+	SAFE_RELEASE(m_pTexture);
+	SAFE_RELEASE(m_pVB);
+}
+
+BOOL CBBFont::Initialise()
+{
+	if(!m_pDevice)
+		return FALSE;
+
+	D3DXCreateTextureFromFileEx(m_pDevice, m_pTextureFileName, D3DX_DEFAULT, D3DX_DEFAULT, 1, 0, D3DFMT_A8R8G8B8, D3DPOOL_MANAGED, D3DX_DEFAULT, D3DX_DEFAULT, 0, NULL, NULL, &m_pTexture);
+
+	m_pDevice->CreateVertexBuffer(((cMaxChars*6)+1)*sizeof(sVertex), D3DUSAGE_WRITEONLY|D3DUSAGE_DYNAMIC, cVertexFVF, D3DPOOL_DEFAULT, &m_pVB);
+
+	D3DSURFACE_DESC desc;
+	m_pTexture->GetLevelDesc(0, &desc);
+	m_fCharWidth = desc.Width / 16.0f;
+	m_fCharHeight = desc.Height / 16.0f;
+
+	FILE * f = fopen(m_pMetricsFileName, "rb");
+	if(f)
+	{
+		fread(&m_Metrics, 1, sizeof(m_Metrics), f);
+		fclose(f);
+	}
+	else
+	{
+		memset(&m_Metrics, (int)m_fCharWidth, sizeof(m_Metrics));
+	}
+
+	return TRUE;
+}
+
+float CBBFont::Draw(char* pText, float fYOffset, DWORD dwColor)
+{
+	m_pDevice->SetRenderState(D3DRS_TEXTUREFACTOR, dwColor);
+
+	int len = (int)strlen(pText);
+	if (len > cMaxChars)
+		len = cMaxChars;
+
+	sVertex *vert_ptr;
+	m_pVB->Lock(0, 0, (BYTE**)&vert_ptr, D3DLOCK_DISCARD);
+
+	float fX = 0.0f;
+	for (int i=0; i<len; i++)
+	{
+		fX += (float)m_Metrics[pText[i]] * m_fScale;
+	}
+	fX = -(fX / 2);
+
+	int i = 0;
+	for (i=0; i<len; i++)
+	{
+		InitQuad(pText[i], fX, fYOffset, vert_ptr);
+		fX += (float)m_Metrics[pText[i]] * m_fScale;
+		vert_ptr += 6;
+	}
+
+	m_pVB->Unlock();
+
+	m_pDevice->DrawPrimitive(D3DPT_TRIANGLELIST, 0, len*2);
+
+	return fX;
+}
+
+void CBBFont::Begin()
+{
+	if(!m_dwSavedStates || !m_dwFontStates)
+	{
+		m_pDevice->BeginStateBlock();
+		m_pDevice->SetRenderState(D3DRS_TEXTUREFACTOR, 0xFFFFFFFF);
+		m_pDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE);
+		m_pDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
+		m_pDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_CURRENT);
+		m_pDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
+		m_pDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_CURRENT);
+		m_pDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1);
+		m_pDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
+		m_pDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_ONE);
+		m_pDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_ZERO);
+		m_pDevice->SetTexture(0, NULL);
+		m_pDevice->SetStreamSource(0, NULL, 0);
+		m_pDevice->SetVertexShader(cVertexFVF);
+		m_pDevice->EndStateBlock(&m_dwSavedStates);
+
+		m_pDevice->BeginStateBlock();
+		m_pDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE);
+		m_pDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
+		m_pDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_TFACTOR);
+		m_pDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
+		m_pDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_TFACTOR);
+		m_pDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_MODULATE);
+		m_pDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
+		m_pDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
+		m_pDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
+		m_pDevice->SetTexture(0, m_pTexture);
+		m_pDevice->SetStreamSource(0, m_pVB, sizeof(sVertex));
+		m_pDevice->SetVertexShader(cVertexFVF);
+		m_pDevice->EndStateBlock(&m_dwFontStates);
+	}
+
+	m_pDevice->CaptureStateBlock(m_dwSavedStates);
+	m_pDevice->ApplyStateBlock(m_dwFontStates);
+}
+
+void CBBFont::End()
+{
+	m_pDevice->ApplyStateBlock(m_dwSavedStates);
+}
+
+void CBBFont::InitQuad(char c, float x, float y2, sVertex* pVB)
+{
+   float x2  = x + ((float)m_Metrics[c] * m_fScale);
+   float y  = y2 + (m_fCharHeight * m_fScale);
+   float tu  = (c % 16) / 16.0f;
+   float tu2 = tu + ((1 / 16.0f) * (m_Metrics[c] / m_fCharWidth));
+   float tv  = (c - (c % 16)) / 256.0f;
+   float tv2 = tv + 1 / 16.0f;
+
+   //                x   y   tu   tv
+   pVB[0].Initialise(x,  y2, tu,  tv2);
+   pVB[1].Initialise(x,  y,  tu,  tv);
+   pVB[2].Initialise(x2, y,  tu2, tv);
+   pVB[3] = pVB[0];
+   pVB[4] = pVB[2];
+   pVB[5].Initialise(x2, y2, tu2, tv2);
+}

Client/CBBFont.h

@@ -0,0 +1,48 @@
+// PUBLIC DOMAIN
+
+#pragma once
+
+#include "main.h"
+
+#define cMaxChars 80
+#define cVertexFVF D3DFVF_XYZ|D3DFVF_TEX1
+
+class CBBFont
+{
+private:
+	struct sVertex
+	{
+		float x, y, z, tu, tv;
+		void Initialise(float fX, float fY, float fTu, float fTv)
+		{
+			x	= fX;
+			y	= fY;
+			z	= 0.0f;
+			tu	= fTu;
+			tv	= fTv;
+		}
+	};
+	IDirect3DDevice8* m_pDevice;
+	IDirect3DTexture8* m_pTexture;
+	IDirect3DVertexBuffer8* m_pVB;
+
+	DWORD m_dwSavedStates;
+	DWORD m_dwFontStates;
+	
+	char* m_pTextureFileName;
+	char* m_pMetricsFileName;
+
+	char m_Metrics[255];
+	float m_fCharWidth;
+	float m_fCharHeight;
+	float m_fScale;
+public:
+	CBBFont(IDirect3DDevice8* pDevice, char* pFileName);
+	~CBBFont();
+
+	BOOL Initialise();
+	float Draw(char* pText, float fYOffset, DWORD dwColor);
+	void Begin();
+	void End();
+	void InitQuad(char c, float x, float y, sVertex* pVB);
+};