[Bug 26123] New: Rendering to offscreen depth-texture fails

[bugzilla-daemon@freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=26123

           Summary: Rendering to offscreen depth-texture fails
           Product: Mesa
           Version: git
          Platform: Other
               URL: http://fabiensanglard.net/shadowmapping/index.php
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/R600
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: pavel@rojtberg.net


driver: r300g, latest git on ubuntu lucid. (Kernel 2.6.32)

when executing the linked demo, the shadowmap is being misrendered and on the
console there is a lot of vomit in the style of:

Pkt3 at 306 :
    PACKET3_3D_LOAD_VBPNTR:
        0x00000001
        0x00000603
        0x000004B0
Pkt3 at 310 :
    PACKET3_NOP:
        0x00000004
Pkt0 at 312 (1 dwords):
    0x0003AAAA -> 0x4278
Pkt0 at 314 (1 dwords):
    0x00000000 -> 0x2138
Pkt0 at 316 (1 dwords):
    0x00000017 -> 0x2134
Pkt3 at 318 :
    PACKET3_3D_DRAW_VBUF_2:
        0x0018002D
...

If I change the code and add a COLOR_ATTACHMENT texture to the FBO the vomit
goes away, but the shadowmap is still misrendered.


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