http://bugs.freedesktop.org/show_bug.cgi?id=16221
Summary: texture's alpha component incorrect when
DEPTH_TEXTURE_MODE is GL_INTENSITY
Product: Mesa
Version: CVS
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/i915
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [email protected]
Created an attachment (id=16904)
--> (http://bugs.freedesktop.org/attachment.cgi?id=16904)
test case
When texture's internalformat is GL_DEPTH_COMPONENT and DEPTH_TEXTURE_MODE is
GL_INTENSITY, for example:
glTexParameteri(GL_TEXTURE_1D, GL_DEPTH_TEXTURE_MODE,
GL_INTENSITY);//GL_LUMINANCE
glTexImage1D(GL_TEXTURE_1D, 0, GL_DEPTH_COMPONENT, 2, 0,
GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, (void*)t);
the texture's depth value applied to RGB but not to Alpha. the pixels drawn is
(t, t, t, 1), it should be (t, t, t, t).
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