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| author | petersont@google.com <petersont@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-03-22 23:03:47 +0000 |
|---|---|---|
| committer | petersont@google.com <petersont@google.com@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-03-22 23:03:47 +0000 |
| commit | e05040ff4032c43e6feb09c5810d84a149464b8e (patch) | |
| tree | 5698e53fd4a5b9791026b3b6b0143e54e839950c /o3d/samples/o3d-webgl/bitmap.js | |
| parent | 2e39f625a1e09e2a1b29bb90e3a4aa1fee5829b1 (diff) | |
| download | chromium_src-e05040ff4032c43e6feb09c5810d84a149464b8e.zip chromium_src-e05040ff4032c43e6feb09c5810d84a149464b8e.tar.gz chromium_src-e05040ff4032c43e6feb09c5810d84a149464b8e.tar.bz2 | |
Implemented Texture2D.drawImage, along the way cleaned up a number of lingering bugs, moved some texture initialization so subsequent calls to gl.texSubImage2D wouldn't fail.
Review URL: http://codereview.chromium.org/1092003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@42277 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'o3d/samples/o3d-webgl/bitmap.js')
| -rw-r--r-- | o3d/samples/o3d-webgl/bitmap.js | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/o3d/samples/o3d-webgl/bitmap.js b/o3d/samples/o3d-webgl/bitmap.js index 5e2fcfc..9551051 100644 --- a/o3d/samples/o3d-webgl/bitmap.js +++ b/o3d/samples/o3d-webgl/bitmap.js @@ -74,6 +74,24 @@ o3d.Bitmap.SLICE = 7; /** + * The scratch canvas object. + * @private + */ +o3d.Bitmap.scratch_canvas_ = null; + + +/** + * Gets a canvas to use for scratch work. + * @private + */ +o3d.Bitmap.getScratchCanvas_ = function() { + if (!o3d.Bitmap.scratch_canvas_) + o3d.Bitmap.scratch_canvas_ = document.createElement('CANVAS'); + return o3d.Bitmap.scratch_canvas_; +} + + +/** * In webgl the bitmap object is represented by an offscreen canvas. * @type {Canvas} * @private @@ -89,6 +107,7 @@ o3d.Bitmap.prototype.flipVertically = function() { }; + /** * Generates mip maps from the source level to lower levels. * |