mirror of
https://github.com/jmarshall23/DoomRTX.git
synced 2026-08-15 15:51:07 +02:00
Justin Marshall
182 lines
6.6 KiB
C
182 lines
6.6 KiB
C
/*
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===========================================================================
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IceTech GPL Source Code
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Copyright (C) 2026 Justin Marshall
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This file is part of the IceTech GPL Source Code.
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===========================================================================
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*/
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#ifndef __RADIANTGLTEXT_H__
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#define __RADIANTGLTEXT_H__
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static ID_INLINE const unsigned char* RadiantGLText_GlyphRows(char c) {
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static const unsigned char glyphBlank[7] = { 0, 0, 0, 0, 0, 0, 0 };
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static const unsigned char glyph0[7] = { 14, 17, 19, 21, 25, 17, 14 };
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static const unsigned char glyph1[7] = { 4, 12, 4, 4, 4, 4, 14 };
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static const unsigned char glyph2[7] = { 14, 17, 1, 2, 4, 8, 31 };
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static const unsigned char glyph3[7] = { 30, 1, 1, 14, 1, 1, 30 };
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static const unsigned char glyph4[7] = { 2, 6, 10, 18, 31, 2, 2 };
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static const unsigned char glyph5[7] = { 31, 16, 16, 30, 1, 1, 30 };
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static const unsigned char glyph6[7] = { 14, 16, 16, 30, 17, 17, 14 };
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static const unsigned char glyph7[7] = { 31, 1, 2, 4, 8, 8, 8 };
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static const unsigned char glyph8[7] = { 14, 17, 17, 14, 17, 17, 14 };
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static const unsigned char glyph9[7] = { 14, 17, 17, 15, 1, 1, 14 };
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static const unsigned char glyphA[7] = { 14, 17, 17, 31, 17, 17, 17 };
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static const unsigned char glyphB[7] = { 30, 17, 17, 30, 17, 17, 30 };
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static const unsigned char glyphC[7] = { 14, 17, 16, 16, 16, 17, 14 };
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static const unsigned char glyphD[7] = { 30, 17, 17, 17, 17, 17, 30 };
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static const unsigned char glyphE[7] = { 31, 16, 16, 30, 16, 16, 31 };
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static const unsigned char glyphF[7] = { 31, 16, 16, 30, 16, 16, 16 };
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static const unsigned char glyphG[7] = { 14, 17, 16, 23, 17, 17, 14 };
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static const unsigned char glyphH[7] = { 17, 17, 17, 31, 17, 17, 17 };
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static const unsigned char glyphI[7] = { 14, 4, 4, 4, 4, 4, 14 };
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static const unsigned char glyphJ[7] = { 7, 2, 2, 2, 18, 18, 12 };
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static const unsigned char glyphK[7] = { 17, 18, 20, 24, 20, 18, 17 };
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static const unsigned char glyphL[7] = { 16, 16, 16, 16, 16, 16, 31 };
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static const unsigned char glyphM[7] = { 17, 27, 21, 21, 17, 17, 17 };
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static const unsigned char glyphN[7] = { 17, 25, 21, 19, 17, 17, 17 };
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static const unsigned char glyphO[7] = { 14, 17, 17, 17, 17, 17, 14 };
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static const unsigned char glyphP[7] = { 30, 17, 17, 30, 16, 16, 16 };
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static const unsigned char glyphQ[7] = { 14, 17, 17, 17, 21, 18, 13 };
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static const unsigned char glyphR[7] = { 30, 17, 17, 30, 20, 18, 17 };
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static const unsigned char glyphS[7] = { 15, 16, 16, 14, 1, 1, 30 };
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static const unsigned char glyphT[7] = { 31, 4, 4, 4, 4, 4, 4 };
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static const unsigned char glyphU[7] = { 17, 17, 17, 17, 17, 17, 14 };
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static const unsigned char glyphV[7] = { 17, 17, 17, 17, 17, 10, 4 };
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static const unsigned char glyphW[7] = { 17, 17, 17, 21, 21, 21, 10 };
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static const unsigned char glyphX[7] = { 17, 17, 10, 4, 10, 17, 17 };
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static const unsigned char glyphY[7] = { 17, 17, 10, 4, 4, 4, 4 };
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static const unsigned char glyphZ[7] = { 31, 1, 2, 4, 8, 16, 31 };
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static const unsigned char glyphColon[7] = { 0, 4, 4, 0, 4, 4, 0 };
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static const unsigned char glyphXChar[7] = { 0, 0, 17, 10, 4, 10, 17 };
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static const unsigned char glyphSlash[7] = { 1, 1, 2, 4, 8, 16, 16 };
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static const unsigned char glyphBackslash[7] = { 16, 16, 8, 4, 2, 1, 1 };
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static const unsigned char glyphDot[7] = { 0, 0, 0, 0, 0, 12, 12 };
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static const unsigned char glyphDash[7] = { 0, 0, 0, 31, 0, 0, 0 };
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static const unsigned char glyphUnderscore[7] = { 0, 0, 0, 0, 0, 0, 31 };
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if (c >= 'a' && c <= 'z' && c != 'x') {
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c = c - 'a' + 'A';
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}
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switch (c) {
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case '0': return glyph0;
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case '1': return glyph1;
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case '2': return glyph2;
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case '3': return glyph3;
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case '4': return glyph4;
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case '5': return glyph5;
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case '6': return glyph6;
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case '7': return glyph7;
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case '8': return glyph8;
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case '9': return glyph9;
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case 'A': return glyphA;
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case 'B': return glyphB;
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case 'C': return glyphC;
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case 'D': return glyphD;
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case 'E': return glyphE;
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case 'F': return glyphF;
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case 'G': return glyphG;
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case 'H': return glyphH;
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case 'I': return glyphI;
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case 'J': return glyphJ;
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case 'K': return glyphK;
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case 'L': return glyphL;
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case 'M': return glyphM;
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case 'N': return glyphN;
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case 'O': return glyphO;
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case 'P': return glyphP;
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case 'Q': return glyphQ;
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case 'R': return glyphR;
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case 'S': return glyphS;
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case 'T': return glyphT;
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case 'U': return glyphU;
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case 'V': return glyphV;
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case 'W': return glyphW;
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case 'X': return glyphX;
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case 'x': return glyphXChar;
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case 'Y': return glyphY;
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case 'Z': return glyphZ;
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case ':': return glyphColon;
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case '/': return glyphSlash;
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case '\\': return glyphBackslash;
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case '.': return glyphDot;
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case '-': return glyphDash;
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case '_': return glyphUnderscore;
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default: return glyphBlank;
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}
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}
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static ID_INLINE float RadiantGLText_Abs(float value) {
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return (value < 0.0f) ? -value : value;
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}
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static ID_INLINE float RadiantGLText_Width(const char* text, float scale) {
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if (!text || !text[0]) {
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return 0.0f;
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}
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return (float)strlen(text) * 6.0f * RadiantGLText_Abs(scale);
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}
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static ID_INLINE float RadiantGLText_Height(float scale) {
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return 7.0f * RadiantGLText_Abs(scale);
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}
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static ID_INLINE void RadiantGLText_DrawScaled(const char* text, float x, float y, float xScale, float yScale) {
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if (!text || !text[0]) {
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return;
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}
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const float glyphAdvance = 6.0f * RadiantGLText_Abs(xScale);
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float penX = x;
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glBegin(GL_QUADS);
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for (const char* p = text; *p; p++) {
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const char c = *p;
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if (c == ' ') {
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penX += glyphAdvance;
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continue;
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}
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const unsigned char* rows = RadiantGLText_GlyphRows(c);
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for (int row = 0; row < 7; row++) {
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for (int col = 0; col < 5; col++) {
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if (!(rows[row] & (1 << (4 - col)))) {
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continue;
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}
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const float x0 = penX + col * xScale;
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const float y0 = y + row * yScale;
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const float x1 = x0 + xScale;
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const float y1 = y0 + yScale;
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glVertex2f(x0, y0);
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glVertex2f(x1, y0);
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glVertex2f(x1, y1);
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glVertex2f(x0, y1);
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}
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}
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penX += glyphAdvance;
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}
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glEnd();
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}
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static ID_INLINE void RadiantGLText_Draw(const char* text, float x, float y, float scale) {
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RadiantGLText_DrawScaled(text, x, y, scale, scale);
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}
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static ID_INLINE void RadiantGLText_DrawCentered(const char* text, float centerX, float centerY, float scale) {
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const float x = centerX - RadiantGLText_Width(text, scale) * 0.5f;
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const float y = centerY - RadiantGLText_Height(scale) * 0.5f;
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RadiantGLText_Draw(text, x, y, scale);
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}
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static ID_INLINE void RadiantGLText_DrawCenteredYUp(const char* text, float centerX, float centerY, float scale) {
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const float x = centerX - RadiantGLText_Width(text, scale) * 0.5f;
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const float y = centerY + RadiantGLText_Height(scale) * 0.5f;
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RadiantGLText_DrawScaled(text, x, y, scale, -scale);
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}
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#endif // __RADIANTGLTEXT_H__
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