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Optimized size of core, fixed some warnings in libraries.

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This commit is contained in:
David A. Mellis
2006-07-09 12:39:27 +00:00
parent 77ecc6476c
commit 4ba8ffb6ee
11 changed files with 97 additions and 126 deletions
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10
targets/libraries/Sprite/Sprite.cpp
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@ -75,7 +75,9 @@ uint8_t Sprite::height() const
void Sprite::write(uint8_t x, uint8_t y, uint8_t value)
{
if (!_buffer) return;
if (x < 0 || x >= _width || y < 0 || y >= _height) return;
// uint8_t's can't be negative, so don't test for negative x and y.
if (x >= _width || y >= _height) return;
// we need to bitwise-or the value of the other pixels in the byte with
// the new value, masked and shifted into the proper bits.
@ -85,7 +87,9 @@ void Sprite::write(uint8_t x, uint8_t y, uint8_t value)
uint8_t Sprite::read(uint8_t x, uint8_t y) const
{
if (!_buffer) return 0;
if (x < 0 || x >= _width || y < 0 || y >= _height) return 0;
// uint8_t's can't be negative, so don't test for negative x and y.
if (x >= _width || y >= _height) return 0;
return (_buffer[y] >> x) & 0x01;
}
}