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gallium: comments

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This commit is contained in:
Brian Paul 2008-04-11 13:44:47 -06:00
parent 9e8a85ef67
commit 097301395d
1 changed files with 31 additions and 0 deletions
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31
src/gallium/auxiliary/tgsi/exec/tgsi_sse2.c
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@ -548,6 +548,12 @@ emit_xorps(
* Data fetch helpers.
*/
/**
* Copy a shader constant to xmm register
* \param xmm the destination xmm register
* \param vec the src const buffer index
* \param chan src channel to fetch (X, Y, Z or W)
*/
static void
emit_const(
struct x86_function *func,
@ -566,6 +572,12 @@ emit_const(
SHUF( 0, 0, 0, 0 ) );
}
/**
* Copy a shader input to xmm register
* \param xmm the destination xmm register
* \param vec the src input attrib
* \param chan src channel to fetch (X, Y, Z or W)
*/
static void
emit_inputf(
struct x86_function *func,
@ -579,6 +591,12 @@ emit_inputf(
get_input( vec, chan ) );
}
/**
* Store an xmm register to a shader output
* \param xmm the source xmm register
* \param vec the dest output attrib
* \param chan src dest channel to store (X, Y, Z or W)
*/
static void
emit_output(
struct x86_function *func,
@ -592,6 +610,12 @@ emit_output(
make_xmm( xmm ) );
}
/**
* Copy a shader temporary to xmm register
* \param xmm the destination xmm register
* \param vec the src temp register
* \param chan src channel to fetch (X, Y, Z or W)
*/
static void
emit_tempf(
struct x86_function *func,
@ -605,6 +629,13 @@ emit_tempf(
get_temp( vec, chan ) );
}
/**
* Load an xmm register with an input attrib coefficient (a0, dadx or dady)
* \param xmm the destination xmm register
* \param vec the src input/attribute coefficient index
* \param chan src channel to fetch (X, Y, Z or W)
* \param member 0=a0, 1=dadx, 2=dady
*/
static void
emit_coef(
struct x86_function *func,