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cherry-pick texture memory leak fix #7695

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merged 1 commit into from
Dec 12, 2018
Merged

cherry-pick texture memory leak fix #7695

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3 changes: 2 additions & 1 deletion src/render/draw_hillshade.js
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,7 @@ function prepareHillshade(painter, tile, layer, sourceMaxZoom, depthMode, stenci
// base 2 - 0000 0000, 0000 0001, 0000 0110, 1110 1100
if (tile.dem && tile.dem.data) {
const tileSize = tile.dem.dim;
const textureStride = tile.dem.stride;

const pixelData = tile.dem.getPixels();
context.activeTexture.set(gl.TEXTURE1);
Expand All @@ -88,7 +89,7 @@ function prepareHillshade(painter, tile, layer, sourceMaxZoom, depthMode, stenci
// tiles will appear blank, because as you can see above the alpha value for these textures
// is always 0
context.pixelStoreUnpackPremultiplyAlpha.set(false);
tile.demTexture = tile.demTexture || painter.getTileTexture(tile.tileSize);
tile.demTexture = tile.demTexture || painter.getTileTexture(textureStride);
if (tile.demTexture) {
const demTexture = tile.demTexture;
demTexture.update(pixelData, { premultiply: false });
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