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beginning of .vb reader test

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class preparation for testing
This commit is contained in:
devZoGok
2021-10-19 19:06:41 +03:00
parent bae1b7a9cc
commit 36eade4356
16 changed files with 261 additions and 148 deletions
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text.cpp
+34 -32
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@@ -59,47 +59,43 @@ namespace vb01{
void Text::update(){
Root *root = Root::getSingleton();
int width = root->getWidth(), height=root->getHeight();
int width = root->getWidth(), height = root->getHeight();
shader->use();
shader->setVec4(color, "color");
shader->setVec2(Vector2(width, height), "screen");
shader->setVec3(node->getPosition(), "pos");
renderGlyphs();
for(int i = 0; i < entry.length(); i++){
prepareGlyphs(entry[i]);
}
}
void Text::renderGlyphs(){
void Text::prepareGlyphs(char c){
Vector3 origin = node->getPosition();
for(int i = 0; i < entry.length(); i++){
Glyph ch;
bool foundChar = false;
for(Glyph c : characters)
if(entry.c_str()[i] == c.ch){
ch = c;
foundChar = true;
}
if(!foundChar)
continue;
Glyph glyph = getGlyph(c);
Vector2 size = ch.size * scale, bearing = ch.bearing * scale;
float data[] = {
origin.x + bearing.x, origin.y - bearing.y, 0, 0,
origin.x + bearing.x + size.x, origin.y - bearing.y, 1, 0,
origin.x + bearing.x + size.x, origin.y - bearing.y + size.y, 1, 1,
Vector2 size = glyph.size * scale, bearing = glyph.bearing * scale;
float data[] = {
origin.x + bearing.x, origin.y - bearing.y, 0, 0,
origin.x + bearing.x + size.x, origin.y - bearing.y, 1, 0,
origin.x + bearing.x + size.x, origin.y - bearing.y + size.y, 1, 1,
origin.x + bearing.x + size.x, origin.y - bearing.y + size.y, 1, 1,
origin.x + bearing.x, origin.y - bearing.y + size.y, 0, 1,
origin.x + bearing.x, origin.y - bearing.y, 0, 0
};
origin.x + bearing.x + size.x, origin.y - bearing.y + size.y, 1, 1,
origin.x + bearing.x, origin.y - bearing.y + size.y, 0, 1,
origin.x + bearing.x, origin.y - bearing.y, 0, 0
};
//origin.x += (glyph.advance >> 6) * scale;
origin.x += (ch.advance >> 6) * scale;
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(data), data);
ch.texture->select();
glDrawArrays(GL_TRIANGLES, 0, 6);
}
renderGlyphs(glyph, data, sizeof(data));
}
void Text::renderGlyphs(Glyph glyph, float data[], u32 dataSize){
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferSubData(GL_ARRAY_BUFFER, 0, dataSize, data);
glyph.texture->select();
glDrawArrays(GL_TRIANGLES, 0, 6);
}
void Text::setText(string text){
@@ -116,9 +112,15 @@ namespace vb01{
glBindVertexArray(0);
}
float Text::getCharWidth(char c){
Text::Glyph Text::getGlyph(char ch){
Glyph glyph;
for(Glyph g : characters)
if(g.ch == c)
return g.size.x * scale;
if(g.ch == ch)
glyph = g;
return glyph;
}
float Text::getCharWidth(char c){
return getGlyph(c).size.x * scale;
}
}