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Bug 638549 - WebGL about:memory - part 1: initial implementation accounting for WebGLContexts and WebGLTextures - r=jrmuizel

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This commit is contained in:
Benoit Jacob
2011-07-07 20:01:12 -04:00
parent 22b3b7b098
commit 1e8d92889e
3 changed files with 172 additions and 0 deletions
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28
content/canvas/src/WebGLContextValidate.cpp
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@@ -328,6 +328,34 @@ PRBool WebGLContext::ValidateDrawModeEnum(WebGLenum mode, const char *info)
}
}
PRUint32 WebGLContext::GetTexelSize(WebGLenum format, WebGLenum type)
{
if (type == LOCAL_GL_UNSIGNED_BYTE || type == LOCAL_GL_FLOAT) {
int multiplier = type == LOCAL_GL_FLOAT ? 4 : 1;
switch (format) {
case LOCAL_GL_ALPHA:
case LOCAL_GL_LUMINANCE:
return 1 * multiplier;
case LOCAL_GL_LUMINANCE_ALPHA:
return 2 * multiplier;
case LOCAL_GL_RGB:
return 3 * multiplier;
case LOCAL_GL_RGBA:
return 4 * multiplier;
default:
break;
}
} else if (type == LOCAL_GL_UNSIGNED_SHORT_4_4_4_4 ||
type == LOCAL_GL_UNSIGNED_SHORT_5_5_5_1 ||
type == LOCAL_GL_UNSIGNED_SHORT_5_6_5)
{
return 2;
}
NS_ABORT();
return 0;
}
PRBool WebGLContext::ValidateTexFormatAndType(WebGLenum format, WebGLenum type, int jsArrayType,
PRUint32 *texelSize, const char *info)
{