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Merge remote-tracking branch 'origin/open852' into open-master

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This commit is contained in:
bwyu 2015-02-11 15:39:23 -08:00
commit 7c4cbb3107
2 changed files with 27 additions and 3 deletions
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17
platform/features/plot/src/GLChart.js
View File

@ -96,7 +96,15 @@ define(
* Clear the chart.
*/
clear: function () {
gl.viewport(0, 0, canvas.width, canvas.height);
// Set the viewport size; note that we use the width/height
// that our WebGL context reports, which may be lower
// resolution than the canvas we requested.
gl.viewport(
0,
0,
gl.drawingBufferWidth,
gl.drawingBufferHeight
);
gl.clear(gl.COLOR_BUFFER_BIT + gl.DEPTH_BUFFER_BIT);
},
/**
@ -107,8 +115,11 @@ define(
* origin of the chart
*/
setDimensions: function (dimensions, origin) {
gl.uniform2fv(uDimensions, dimensions);
gl.uniform2fv(uOrigin, origin);
if (dimensions && dimensions.length > 0 &&
origin && origin.length > 0) {
gl.uniform2fv(uDimensions, dimensions);
gl.uniform2fv(uOrigin, origin);
}
},
/**
* Draw the supplied buffer as a line strip (a sequence

13
platform/features/plot/test/GLChartSpec.js
View File

@ -106,6 +106,19 @@ define(
expect(mockGL.drawArrays)
.toHaveBeenCalledWith("TRIANGLE_FAN", 0, 4);
});
it("uses buffer sizes reported by WebGL", function () {
// Make sure that GLChart uses the GL buffer size, which may
// differ from what canvas requested. WTD-852
mockCanvas.width = 300;
mockCanvas.height = 150;
mockGL.drawingBufferWidth = 200;
mockGL.drawingBufferHeight = 175;
glChart.clear();
expect(mockGL.viewport).toHaveBeenCalledWith(0, 0, 200, 175);
});
});
}
);