diff options
| -rw-r--r-- | src/alp_driver.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/alp_driver.c b/src/alp_driver.c index e773471..3153484 100644 --- a/src/alp_driver.c +++ b/src/alp_driver.c @@ -405,6 +405,8 @@ GetAccelPitchValues(ScrnInfoPtr pScrn) { int *linePitches = NULL; int i, n = 0; + int max_pitch; + CirPtr pCir = CIRPTR(pScrn); /* XXX ajv - 512, 576, and 1536 may not be supported @@ -421,8 +423,21 @@ GetAccelPitchValues(ScrnInfoPtr pScrn) 1280, 1536, 1600, 1920, 2048, 0 }; #endif + switch (pCir->Chipset) { + case PCI_CHIP_GD5436: + case PCI_CHIP_GD5446: + max_pitch = 0x1ff << 3; + break; + + default: + /* FIXME max_pitch for other chipsets? */ + max_pitch = (pScrn->bitsPerPixel / 8) * 2048; + break; + } + for (i = 0; accelWidths[i] != 0; i++) { - if (accelWidths[i] % pCir->Rounding == 0) { + if ((accelWidths[i] % pCir->Rounding == 0) + && ((accelWidths[i] * pScrn->bitsPerPixel / 8) <= max_pitch)) { n++; linePitches = xnfrealloc(linePitches, n * sizeof(int)); linePitches[n - 1] = accelWidths[i]; |