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better internal memory management

This commit is contained in:
Adam D. Ruppe 2016-06-17 10:36:54 -04:00
parent f48d7f4e9a
commit ed23f6a91e
1 changed files with 14 additions and 4 deletions
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18
gamehelpers.d
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@ -222,6 +222,8 @@ final class OpenGlTexture {
this(TrueColorImage from) {
assert(from.width > 0 && from.height > 0);
import core.stdc.stdlib;
_width = from.width;
_height = from.height;
@ -230,14 +232,18 @@ final class OpenGlTexture {
auto _texWidth = _width;
auto _texHeight = _height;
const(ubyte)[] data = from.imageData.bytes;
const(ubyte)* data = from.imageData.bytes.ptr;
bool freeRequired = false;
// gotta round them to the nearest power of two which means padding the image
if((_texWidth & (_texWidth - 1)) || (_texHeight & (_texHeight - 1))) {
_texWidth = nextPowerOfTwo(_texWidth);
_texHeight = nextPowerOfTwo(_texHeight);
auto n = new ubyte[](_texWidth * _texHeight * 4);
auto n = cast(ubyte*) malloc(_texWidth * _texHeight * 4);
if(n is null) assert(0);
scope(failure) free(n);
auto size = from.width * 4;
auto advance = _texWidth * 4;
int at = 0;
@ -248,7 +254,8 @@ final class OpenGlTexture {
at2 += size;
}
data = n[];
data = n;
freeRequired = true;
// the rest of data will be initialized to zeros automatically which is fine.
}
@ -268,12 +275,15 @@ final class OpenGlTexture {
0,
GL_RGBA,
GL_UNSIGNED_BYTE,
data.ptr);
data);
assert(!glGetError());
_texCoordWidth = cast(float) _width / _texWidth;
_texCoordHeight = cast(float) _height / _texHeight;
if(freeRequired)
free(cast(void*) data);
}
/// Generates from text. Requires stb_truetype.d