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hack hack hack... we have working text rendering

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This commit is contained in:
Chris Forbes
2010-02-20 18:31:46 +13:00
parent 877348ebe3
commit 6e91c8015c
3 changed files with 69 additions and 29 deletions
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FreeSans.ttf
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FreeSansBold.ttf Normal file
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92
OpenRa.Game/Graphics/Renderer.cs
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@@ -46,12 +46,14 @@ namespace OpenRa.Graphics
public ITexture PaletteTexture;
readonly Font fDebug, fTitle;
readonly FTFontBitmap testFont;
readonly FTFontGL testFont, boldFont;
Sheet textSheet;
SpriteRenderer rgbaRenderer;
Sprite textSprite;
const int RenderedSize = 48;
public Size Resolution { get { return device.WindowSize; } }
public Renderer(Size resolution, bool windowed)
@@ -63,12 +65,25 @@ namespace OpenRa.Graphics
RgbaSpriteShader = device.CreateShader(FileSystem.Open("chrome-rgba.fx"));
WorldSpriteShader = device.CreateShader(FileSystem.Open("chrome-shp.fx"));
//fDebug = new Font("Tahoma", 10.0f, FontStyle.Regular);
//fTitle = new Font("Tahoma", 10, FontStyle.Bold);
fDebug = new Font("Tahoma", 10.0f, FontStyle.Regular);
fTitle = new Font("Tahoma", 10, FontStyle.Bold);
int Errors;
testFont = new FTFontBitmap("FreeSans.ttf", out Errors);
testFont.ftRenderToTexture(2, 48);
testFont.FT_ALIGN = FTFontAlign.FT_ALIGN_CENTERED;
testFont = new FTFontGL("FreeSans.ttf", out Errors);
if (Errors > 0)
throw new InvalidOperationException("Error(s) loading font");
testFont.ftRenderToTexture(RenderedSize, 192);
testFont.FT_ALIGN = FTFontAlign.FT_ALIGN_LEFT;
boldFont = new FTFontGL("FreeSansBold.ttf", out Errors);
if (Errors > 0)
throw new InvalidOperationException("Error(s) loading font");
boldFont.ftRenderToTexture(RenderedSize, 192);
boldFont.FT_ALIGN = FTFontAlign.FT_ALIGN_LEFT;
textSheet = new Sheet(this, new Size(256, 256));
rgbaRenderer = new SpriteRenderer(this, true, RgbaSpriteShader);
@@ -85,7 +100,7 @@ namespace OpenRa.Graphics
throw new NotImplementedException();
}
Bitmap RenderTextToBitmap(string s, Font f, Color c)
/* Bitmap RenderTextToBitmap(string s, Font f, Color c)
{
Bitmap b = new Bitmap(256, 256);
testFont.ftBeginFont(0.9f,0.0f,0.0f,0.5f);
@@ -98,8 +113,8 @@ namespace OpenRa.Graphics
g.DrawString(s, f, new SolidBrush(c), 0, 0);
g.Flush();
}*/
return b;
}
// return b;
// }
int2 GetTextSize(string s, Font f)
{
@@ -167,36 +182,61 @@ namespace OpenRa.Graphics
PerfHistory.Increment("batches", 1);
}
public void DrawText(string text, int2 pos, Color c)
static void CheckError()
{
var e = Gl.glGetError();
if (e != Gl.GL_NO_ERROR)
throw new InvalidOperationException("GL Error: " + Gl.glGetString(e));
}
const float emHeight = 14f; /* px */
void DrawTextInner(FTFontGL f, string text, int2 pos, Color c)
{
using (new PerfSample("text"))
{
Bitmap b = RenderTextToBitmap(text, fDebug, c);
textSheet.Texture.SetData(b);
rgbaRenderer.DrawSprite(textSprite, pos.ToFloat2(), "chrome");
rgbaRenderer.Flush();
pos.Y += (int)(emHeight * 2 / 3);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glOrtho(0, Resolution.Width, 0, Resolution.Height, 0, 1);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glTranslatef(pos.X, Resolution.Height - pos.Y, 0);
Gl.glScalef(emHeight / RenderedSize, emHeight / RenderedSize, 1);
f.ftBeginFont(false);
Gl.glColor4f(c.R / 255f, c.G / 255f, c.B / 255f, c.A / 255f);
f.ftWrite(text);
f.ftEndFont();
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glPopMatrix();
CheckError();
}
}
public void DrawText2(string text, int2 pos, Color c)
{
using (new PerfSample("text"))
{
Bitmap b = RenderTextToBitmap(text, fTitle, c);
textSheet.Texture.SetData(b);
rgbaRenderer.DrawSprite(textSprite, pos.ToFloat2(), "chrome");
rgbaRenderer.Flush();
}
}
public void DrawText(string text, int2 pos, Color c) { DrawTextInner(testFont, text, pos, c); }
public void DrawText2(string text, int2 pos, Color c) { DrawTextInner(boldFont, text, pos, c); }
public int2 MeasureText(string text)
{
return GetTextSize(text, fDebug);
return new int2((int)(testFont.ftExtent(ref text) / 3), (int)emHeight);
}
public int2 MeasureText2(string text)
{
return GetTextSize(text, fTitle);
return new int2((int)(boldFont.ftExtent(ref text) / 3), (int)emHeight);
}
}
}