100 lines
2.5 KiB
Java
100 lines
2.5 KiB
Java
package speiger.src.coreengine.rendering.texturesOld.stb;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import org.lwjgl.opengl.GL11;
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import org.lwjgl.opengl.GL13;
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import org.lwjgl.opengl.GL30;
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import org.lwjgl.stb.STBImage;
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import org.lwjgl.system.MemoryUtil;
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import speiger.src.coreengine.assets.AssetLocation;
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import speiger.src.coreengine.assets.base.IAsset;
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import speiger.src.coreengine.assets.parsers.NativeMemoryParser;
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import speiger.src.coreengine.rendering.texturesOld.base.AbstractTexture;
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import speiger.src.coreengine.rendering.texturesOld.base.TextureManager;
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public class STBTexture extends AbstractTexture
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{
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AssetLocation location;
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long imageData;
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int width;
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int height;
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public STBTexture(AssetLocation location)
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{
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this.location = location;
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loadTexture();
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}
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private void loadTexture()
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{
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try(IAsset asset = TextureManager.INSTANCE.getManager().getAsset(location))
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{
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ByteBuffer buffer = asset.custom(NativeMemoryParser.INSTANCE);
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int[] width = new int[1];
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int[] height = new int[1];
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int[] fileChannels = new int[1];
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ByteBuffer image = STBImage.stbi_load_from_memory(buffer, width, height, fileChannels, 4);
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if(image == null) {
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MemoryUtil.memFree(buffer);
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throw new IOException("Could not load image: " + STBImage.stbi_failure_reason());
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}
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imageData = MemoryUtil.memAddress(image);
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this.width = width[0];
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this.height = height[0];
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MemoryUtil.memFree(buffer);
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}
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catch(Exception e)
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{
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e.printStackTrace();
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return;
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}
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setTextureID(GL11.glGenTextures());
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bindTexture();
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GL11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
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GL11.glTexParameterf(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
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GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL13.GL_CLAMP_TO_BORDER);
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GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL13.GL_CLAMP_TO_BORDER);
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GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, width, height, 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, imageData);
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GL30.glGenerateMipmap(GL11.GL_TEXTURE_2D);
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}
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@Override
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public int getWidth()
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{
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return width;
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}
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@Override
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public int getHeight()
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{
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return height;
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}
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@Override
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public void reload()
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{
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if(imageData != 0)
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{
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STBImage.nstbi_image_free(imageData);
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imageData = 0;
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}
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int old = textureID;
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loadTexture();
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TextureManager.INSTANCE.removeTexture(old);
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}
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@Override
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public void deleteTexture()
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{
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super.deleteTexture();
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if(imageData != 0)
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{
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STBImage.nstbi_image_free(imageData);
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imageData = 0;
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}
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}
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}
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