/**
@note The vertex buffer is 100x100 and should get scaled, rotated and transformed before drawTexture() is called.
*/
void Graphics::buildFastBuffer()
{
HR(gd3dDevice->CreateVertexBuffer(4 * sizeof(TextureVertex), D3DUSAGE_WRITEONLY,
0, D3DPOOL_MANAGED, &mVB_fast, 0));
TextureVertex* v = NULL;
HR(mVB_fast->Lock(0, 0, (void**)&v, 0));
int width = 100;
int height = 100;
v[0] = TextureVertex(-width/2, -height/2, 0);
v[1] = TextureVertex(-width/2, height/2, 0);
v[2] = TextureVertex(width/2, height/2, 0);
v[3] = TextureVertex(width/2, -height/2, 0);
v[0].tex0.x = 0;
v[0].tex0.y = 0;
v[1].tex0.x = 0;
v[1].tex0.y = 1;
v[2].tex0.x = 1;
v[2].tex0.y = 1;
v[3].tex0.x = 1;
v[3].tex0.y = 0;
HR(mVB_fast->Unlock());
}
QuadBuilder(const glm::vec2& min, const glm::vec2& size,
const glm::vec2& texMin, const glm::vec2& texSize) {
// min = bottomLeft
vertices[0] = TextureVertex(min,
texMin + glm::vec2(0.0f, texSize.y));
vertices[1] = TextureVertex(min + glm::vec2(size.x, 0.0f),
texMin + texSize);
vertices[2] = TextureVertex(min + size,
texMin + glm::vec2(texSize.x, 0.0f));
vertices[3] = TextureVertex(min + glm::vec2(0.0f, size.y),
texMin);
}
QuadBuilder(const rectf & r, const rectf & tr) {
vertices[0] = TextureVertex(r.getLowerLeft(), tr.getUpperLeft());
vertices[1] = TextureVertex(r.getLowerRight(), tr.getUpperRight());
vertices[2] = TextureVertex(r.getUpperRight(), tr.getLowerRight());
vertices[3] = TextureVertex(r.getUpperLeft(), tr.getLowerLeft());
}
