diff options
| author | Erik Faye-Lund <[email protected]> | 2014-02-07 13:45:11 +0100 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2014-02-07 08:22:23 -0700 |
| commit | 5125165dde6ea6c3599810a92d6bcd4a5650adfd (patch) | |
| tree | 8d30ad29ce82ea5992a97f338894d228377c63c1 /src | |
| parent | 7a49a796a41fa5ba3dccc2e13de43520b8d05bb6 (diff) | |
gallium/tgsi: correct typo propagated from NV_vertex_program1_1
In the specification text of NV_vertex_program1_1, the upper
limit of the RCC instruction is written as 1.884467e+19 in
scientific notation, but as 0x5F800000 in binary. But the binary
version translates to 1.84467e+19 rather than 1.884467e+19 in
scientific notation.
Since the lower-limit equals 2^-64 and the binary version equals
2^+64, let's assume the value in scientific notation is a typo
and implement this using the value from the binary version
instead.
Signed-off-by: Erik Faye-Lund <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_exec.c | 4 | ||||
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index 96809cd03f5..55da60a18c7 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -915,9 +915,9 @@ micro_rcc(union tgsi_exec_channel *dst, float recip = 1.0f / src->f[i]; if (recip > 0.0f) - dst->f[i] = CLAMP(recip, 5.42101e-020f, 1.884467e+019f); + dst->f[i] = CLAMP(recip, 5.42101e-020f, 1.84467e+019f); else - dst->f[i] = CLAMP(recip, -1.884467e+019f, -5.42101e-020f); + dst->f[i] = CLAMP(recip, -1.84467e+019f, -5.42101e-020f); } } diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 0501aca54fc..be4257255b3 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -424,7 +424,7 @@ XXX cleanup on aisle three .. math:: - dst = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1 / src.x, -1.884467e+019, -5.42101e-020) + dst = (1 / src.x) > 0 ? clamp(1 / src.x, 5.42101e-020, 1.84467e+019) : clamp(1 / src.x, -1.84467e+019, -5.42101e-020) .. opcode:: DPH - Homogeneous Dot Product |