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14 : * for the specific language governing rights and limitations under the
15 : * License.
16 : *
17 : * The Original Code is mozilla.org code.
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19 : * The Initial Developer of the Original Code is
20 : * Mozilla Foundation.
21 : * Portions created by the Initial Developer are Copyright (C) 2010
22 : * the Initial Developer. All Rights Reserved.
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24 : * Contributor(s):
25 : *
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38 : * ***** END LICENSE BLOCK ***** */
39 :
40 : #include "GfxInfoWebGL.h"
41 :
42 : #include "nsServiceManagerUtils.h"
43 :
44 : #include "GLDefs.h"
45 : #include "nsIDOMWebGLRenderingContext.h"
46 : #include "nsICanvasRenderingContextInternal.h"
47 :
48 : using namespace mozilla::widget;
49 :
50 : nsresult
51 0 : GfxInfoWebGL::GetWebGLParameter(const nsAString& aParam, nsAString& aResult)
52 : {
53 : GLenum param;
54 :
55 0 : if (aParam.EqualsLiteral("vendor")) param = LOCAL_GL_VENDOR;
56 0 : else if (aParam.EqualsLiteral("renderer")) param = LOCAL_GL_RENDERER;
57 0 : else if (aParam.EqualsLiteral("version")) param = LOCAL_GL_VERSION;
58 0 : else if (aParam.EqualsLiteral("shading_language_version")) param = LOCAL_GL_SHADING_LANGUAGE_VERSION;
59 0 : else if (aParam.EqualsLiteral("extensions")) param = LOCAL_GL_EXTENSIONS;
60 0 : else if (aParam.EqualsLiteral("full-renderer")) param = 0;
61 0 : else return NS_ERROR_INVALID_ARG;
62 :
63 : nsCOMPtr<nsIDOMWebGLRenderingContext> webgl =
64 0 : do_CreateInstance("@mozilla.org/content/canvas-rendering-context;1?id=experimental-webgl");
65 0 : if (!webgl)
66 0 : return NS_ERROR_NOT_AVAILABLE;
67 :
68 : nsCOMPtr<nsICanvasRenderingContextInternal> webglInternal =
69 0 : do_QueryInterface(webgl);
70 0 : if (!webglInternal)
71 0 : return NS_ERROR_NOT_AVAILABLE;
72 :
73 0 : nsresult rv = webglInternal->SetDimensions(16, 16);
74 0 : NS_ENSURE_SUCCESS(rv, rv);
75 :
76 0 : if (param)
77 0 : return webgl->MozGetUnderlyingParamString(param, aResult);
78 :
79 : // this is the "full renderer" string, which is vendor + renderer + version
80 :
81 0 : nsAutoString str;
82 :
83 0 : rv = webgl->MozGetUnderlyingParamString(LOCAL_GL_VENDOR, str);
84 0 : NS_ENSURE_SUCCESS(rv, rv);
85 :
86 0 : aResult.Append(str);
87 0 : aResult.AppendLiteral(" -- ");
88 :
89 0 : rv = webgl->MozGetUnderlyingParamString(LOCAL_GL_RENDERER, str);
90 0 : NS_ENSURE_SUCCESS(rv, rv);
91 :
92 0 : aResult.Append(str);
93 0 : aResult.AppendLiteral(" -- ");
94 :
95 0 : rv = webgl->MozGetUnderlyingParamString(LOCAL_GL_VERSION, str);
96 0 : NS_ENSURE_SUCCESS(rv, rv);
97 :
98 0 : aResult.Append(str);
99 :
100 0 : return NS_OK;
101 : }
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