FGFS-4.1/OpenSceneGraph
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Added support for multiple graphics contexts, submission from Max Rhiener.

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Alas changed the indenting to use 4 spaces instead of tabs, this irons out
differences when working under Windows and Unix, keeping the identing
consistent.
This commit is contained in:
Robert Osfield
2002-01-18 22:25:51 +00:00
parent 58ead9aead
commit 4fbf4db42e
39 changed files with 2579 additions and 2443 deletions
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116
src/osgText/FTTextureGlyph.cpp
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@@ -1,64 +1,64 @@
#include "FTTextureGlyph.h"
#include "FTGL.h"
#include "FTTextureGlyph.h"
#include "FTGL.h"
FTTextureGlyph::FTTextureGlyph( FT_Glyph glyph, int id, unsigned char* data, GLsizei stride, GLsizei height, float u, float v)
: FTGlyph(),
destWidth(0),
destHeight(0),
numGreys(0),
glTextureID(id)
: FTGlyph(),
destWidth(0),
destHeight(0),
numGreys(0),
glTextureID(id)
{
// This function will always fail if the glyph's format isn't scalable????
err = FT_Glyph_To_Bitmap( &glyph, ft_render_mode_normal, 0, 1);
if( err || glyph->format != ft_glyph_format_bitmap)
{
return;
}
// This function will always fail if the glyph's format isn't scalable????
err = FT_Glyph_To_Bitmap( &glyph, ft_render_mode_normal, 0, 1);
if( err || glyph->format != ft_glyph_format_bitmap)
{
return;
}
FT_BitmapGlyph bitmap = ( FT_BitmapGlyph)glyph;
FT_Bitmap* source = &bitmap->bitmap;
FT_BitmapGlyph bitmap = ( FT_BitmapGlyph)glyph;
FT_Bitmap* source = &bitmap->bitmap;
//check the pixel mode
//ft_pixel_mode_grays
int srcWidth = source->width;
int srcHeight = source->rows;
int srcPitch = source->pitch;
//check the pixel mode
//ft_pixel_mode_grays
int srcWidth = source->width;
int srcHeight = source->rows;
int srcPitch = source->pitch;
numGreys = source->num_grays;
advance = glyph->advance.x >> 16;
numGreys = source->num_grays;
advance = glyph->advance.x >> 16;
pos.x = bitmap->left;
pos.y = bitmap->top;
pos.x = bitmap->left;
pos.y = bitmap->top;
destWidth = srcWidth;
destHeight = srcHeight;
for(int y = 0; y < srcHeight; ++y)
{
for(int x = 0; x < srcWidth; ++x)
{
*( data + ( y * stride + x)) = *( source->buffer + ( y * srcPitch) + x);
}
for(int x = 0; x < srcWidth; ++x)
{
*( data + ( y * stride + x)) = *( source->buffer + ( y * srcPitch) + x);
}
}
// 0
// +----+
// | |
// | |
// | |
// +----+
// 1
uv[0].x = u;
uv[0].y = v;
uv[1].x = uv[0].x + ( (float)destWidth / (float)stride);
uv[1].y = uv[0].y + ( (float)destHeight / (float)height);
// 0
// +----+
// | |
// | |
// | |
// +----+
// 1
uv[0].x = u;
uv[0].y = v;
uv[1].x = uv[0].x + ( (float)destWidth / (float)stride);
uv[1].y = uv[0].y + ( (float)destHeight / (float)height);
// discard glyph image (bitmap or not)
// Is this the right place to do this?
FT_Done_Glyph( glyph);
// discard glyph image (bitmap or not)
// Is this the right place to do this?
FT_Done_Glyph( glyph);
}
@@ -70,20 +70,20 @@ FTTextureGlyph::~FTTextureGlyph()
float FTTextureGlyph::Render( const FT_Vector& pen)
{
glGetIntegerv( GL_TEXTURE_2D_BINDING_EXT, &activeTextureID);
if( activeTextureID != glTextureID)
{
glBindTexture( GL_TEXTURE_2D, (GLuint)glTextureID);
}
glBegin( GL_QUADS);
glTexCoord2f( uv[0].x, uv[0].y); glVertex2f( pen.x + pos.x, pen.y + pos.y);
glTexCoord2f( uv[1].x, uv[0].y); glVertex2f( pen.x + destWidth + pos.x, pen.y + pos.y);
glTexCoord2f( uv[1].x, uv[1].y); glVertex2f( pen.x + destWidth + pos.x, pen.y + pos.y - destHeight);
glTexCoord2f( uv[0].x, uv[1].y); glVertex2f( pen.x + pos.x, pen.y + pos.y - destHeight);
glEnd();
glGetIntegerv( GL_TEXTURE_2D_BINDING_EXT, &activeTextureID);
if( activeTextureID != glTextureID)
{
glBindTexture( GL_TEXTURE_2D, (GLuint)glTextureID);
}
glBegin( GL_QUADS);
glTexCoord2f( uv[0].x, uv[0].y); glVertex2f( pen.x + pos.x, pen.y + pos.y);
glTexCoord2f( uv[1].x, uv[0].y); glVertex2f( pen.x + destWidth + pos.x, pen.y + pos.y);
glTexCoord2f( uv[1].x, uv[1].y); glVertex2f( pen.x + destWidth + pos.x, pen.y + pos.y - destHeight);
glTexCoord2f( uv[0].x, uv[1].y); glVertex2f( pen.x + pos.x, pen.y + pos.y - destHeight);
glEnd();
return advance;
return advance;
}