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i965: Share math functions between brw_wm_glsl.c and brw_wm_emit.c.
This commit is contained in:
Eric Anholt
parent
7059aa0eff
commit
1e5400c575
3 changed files with 111 additions and 221 deletions
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@ -357,11 +357,27 @@ void emit_mad(struct brw_compile *p,
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const struct brw_reg *arg0,
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const struct brw_reg *arg1,
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const struct brw_reg *arg2);
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void emit_math1(struct brw_wm_compile *c,
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GLuint function,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0);
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void emit_math2(struct brw_wm_compile *c,
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GLuint function,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0,
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const struct brw_reg *arg1);
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void emit_sop(struct brw_compile *p,
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const struct brw_reg *dst,
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GLuint mask,
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GLuint cond,
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const struct brw_reg *arg0,
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const struct brw_reg *arg1);
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void emit_xpd(struct brw_compile *p,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0,
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const struct brw_reg *arg1);
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#endif
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@ -665,11 +665,11 @@ void emit_dph(struct brw_compile *p,
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}
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static void emit_xpd( struct brw_compile *p,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0,
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const struct brw_reg *arg1 )
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void emit_xpd(struct brw_compile *p,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0,
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const struct brw_reg *arg1)
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{
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GLuint i;
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@ -690,41 +690,68 @@ static void emit_xpd( struct brw_compile *p,
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}
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static void emit_math1( struct brw_compile *p,
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GLuint function,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0 )
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void emit_math1(struct brw_wm_compile *c,
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GLuint function,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0)
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{
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struct brw_compile *p = &c->func;
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int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1;
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GLuint saturate = ((mask & SATURATE) ?
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BRW_MATH_SATURATE_SATURATE :
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BRW_MATH_SATURATE_NONE);
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if (!(mask & WRITEMASK_XYZW))
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return; /* Do not emit dead code */
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assert(is_power_of_two(mask & WRITEMASK_XYZW));
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/* If compressed, this will write message reg 2,3 from arg0.x's 16
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* channels.
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*/
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brw_MOV(p, brw_message_reg(2), arg0[0]);
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/* Send two messages to perform all 16 operations:
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*/
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brw_math_16(p,
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dst[dst_chan],
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brw_push_insn_state(p);
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brw_set_compression_control(p, BRW_COMPRESSION_NONE);
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brw_math(p,
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dst[dst_chan],
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function,
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saturate,
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2,
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brw_null_reg(),
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BRW_MATH_DATA_VECTOR,
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BRW_MATH_PRECISION_FULL);
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if (c->dispatch_width == 16) {
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brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
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brw_math(p,
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offset(dst[dst_chan],1),
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function,
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(mask & SATURATE) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
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2,
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saturate,
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3,
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brw_null_reg(),
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BRW_MATH_DATA_VECTOR,
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BRW_MATH_PRECISION_FULL);
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}
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brw_pop_insn_state(p);
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}
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static void emit_math2( struct brw_compile *p,
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GLuint function,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0,
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const struct brw_reg *arg1)
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void emit_math2(struct brw_wm_compile *c,
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GLuint function,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0,
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const struct brw_reg *arg1)
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{
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struct brw_compile *p = &c->func;
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int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1;
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GLuint saturate = ((mask & SATURATE) ?
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BRW_MATH_SATURATE_SATURATE :
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BRW_MATH_SATURATE_NONE);
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if (!(mask & WRITEMASK_XYZW))
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return; /* Do not emit dead code */
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@ -735,37 +762,41 @@ static void emit_math2( struct brw_compile *p,
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brw_set_compression_control(p, BRW_COMPRESSION_NONE);
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brw_MOV(p, brw_message_reg(2), arg0[0]);
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brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
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brw_MOV(p, brw_message_reg(4), sechalf(arg0[0]));
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if (c->dispatch_width == 16) {
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brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
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brw_MOV(p, brw_message_reg(4), sechalf(arg0[0]));
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}
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brw_set_compression_control(p, BRW_COMPRESSION_NONE);
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brw_MOV(p, brw_message_reg(3), arg1[0]);
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brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
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brw_MOV(p, brw_message_reg(5), sechalf(arg1[0]));
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if (c->dispatch_width == 16) {
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brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
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brw_MOV(p, brw_message_reg(5), sechalf(arg1[0]));
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}
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/* Send two messages to perform all 16 operations:
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*/
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brw_set_compression_control(p, BRW_COMPRESSION_NONE);
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brw_math(p,
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dst[dst_chan],
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function,
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(mask & SATURATE) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
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saturate,
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2,
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brw_null_reg(),
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BRW_MATH_DATA_VECTOR,
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BRW_MATH_PRECISION_FULL);
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brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
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brw_math(p,
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offset(dst[dst_chan],1),
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function,
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(mask & SATURATE) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
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4,
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brw_null_reg(),
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BRW_MATH_DATA_VECTOR,
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BRW_MATH_PRECISION_FULL);
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/* Send two messages to perform all 16 operations:
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*/
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if (c->dispatch_width == 16) {
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brw_set_compression_control(p, BRW_COMPRESSION_2NDHALF);
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brw_math(p,
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offset(dst[dst_chan],1),
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function,
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saturate,
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4,
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brw_null_reg(),
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BRW_MATH_DATA_VECTOR,
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BRW_MATH_PRECISION_FULL);
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}
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brw_pop_insn_state(p);
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}
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@ -909,11 +940,13 @@ static void emit_txb( struct brw_wm_compile *c,
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}
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static void emit_lit( struct brw_compile *p,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0 )
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static void emit_lit(struct brw_wm_compile *c,
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const struct brw_reg *dst,
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GLuint mask,
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const struct brw_reg *arg0)
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{
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struct brw_compile *p = &c->func;
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assert((mask & WRITEMASK_XW) == 0);
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if (mask & WRITEMASK_Y) {
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@ -923,7 +956,7 @@ static void emit_lit( struct brw_compile *p,
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}
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if (mask & WRITEMASK_Z) {
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emit_math2(p, BRW_MATH_FUNCTION_POW,
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emit_math2(c, BRW_MATH_FUNCTION_POW,
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&dst[2],
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WRITEMASK_X | (mask & SATURATE),
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&arg0[1],
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@ -1380,27 +1413,27 @@ void brw_wm_emit( struct brw_wm_compile *c )
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/* Higher math functions:
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*/
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case OPCODE_RCP:
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emit_math1(p, BRW_MATH_FUNCTION_INV, dst, dst_flags, args[0]);
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emit_math1(c, BRW_MATH_FUNCTION_INV, dst, dst_flags, args[0]);
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break;
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case OPCODE_RSQ:
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emit_math1(p, BRW_MATH_FUNCTION_RSQ, dst, dst_flags, args[0]);
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emit_math1(c, BRW_MATH_FUNCTION_RSQ, dst, dst_flags, args[0]);
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break;
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case OPCODE_SIN:
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emit_math1(p, BRW_MATH_FUNCTION_SIN, dst, dst_flags, args[0]);
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emit_math1(c, BRW_MATH_FUNCTION_SIN, dst, dst_flags, args[0]);
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break;
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case OPCODE_COS:
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emit_math1(p, BRW_MATH_FUNCTION_COS, dst, dst_flags, args[0]);
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emit_math1(c, BRW_MATH_FUNCTION_COS, dst, dst_flags, args[0]);
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break;
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case OPCODE_EX2:
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emit_math1(p, BRW_MATH_FUNCTION_EXP, dst, dst_flags, args[0]);
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emit_math1(c, BRW_MATH_FUNCTION_EXP, dst, dst_flags, args[0]);
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break;
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case OPCODE_LG2:
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emit_math1(p, BRW_MATH_FUNCTION_LOG, dst, dst_flags, args[0]);
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emit_math1(c, BRW_MATH_FUNCTION_LOG, dst, dst_flags, args[0]);
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break;
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case OPCODE_SCS:
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@ -1408,13 +1441,13 @@ void brw_wm_emit( struct brw_wm_compile *c )
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* fixup for 16-element execution.
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*/
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if (dst_flags & WRITEMASK_X)
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emit_math1(p, BRW_MATH_FUNCTION_COS, dst, (dst_flags&SATURATE)|WRITEMASK_X, args[0]);
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emit_math1(c, BRW_MATH_FUNCTION_COS, dst, (dst_flags&SATURATE)|WRITEMASK_X, args[0]);
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if (dst_flags & WRITEMASK_Y)
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emit_math1(p, BRW_MATH_FUNCTION_SIN, dst+1, (dst_flags&SATURATE)|WRITEMASK_X, args[0]);
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emit_math1(c, BRW_MATH_FUNCTION_SIN, dst+1, (dst_flags&SATURATE)|WRITEMASK_X, args[0]);
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break;
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case OPCODE_POW:
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emit_math2(p, BRW_MATH_FUNCTION_POW, dst, dst_flags, args[0], args[1]);
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emit_math2(c, BRW_MATH_FUNCTION_POW, dst, dst_flags, args[0], args[1]);
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break;
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/* Comparisons:
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@ -1452,7 +1485,7 @@ void brw_wm_emit( struct brw_wm_compile *c )
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break;
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case OPCODE_LIT:
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emit_lit(p, dst, dst_flags, args[0]);
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emit_lit(c, dst, dst_flags, args[0]);
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break;
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/* Texturing operations:
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@ -550,42 +550,6 @@ static struct brw_reg get_src_reg(struct brw_wm_compile *c,
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}
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}
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/**
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* Same as \sa get_src_reg() but if the register is a literal, emit
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* a brw_reg encoding the literal.
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* Note that a brw instruction only allows one src operand to be a literal.
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* For instructions with more than one operand, only the second can be a
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* literal. This means that we treat some literals as constants/uniforms
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* (which why PROGRAM_CONSTANT is checked in fetch_constants()).
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*
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*/
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static struct brw_reg get_src_reg_imm(struct brw_wm_compile *c,
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const struct prog_instruction *inst,
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GLuint srcRegIndex, GLuint channel)
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{
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const struct prog_src_register *src = &inst->SrcReg[srcRegIndex];
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if (src->File == PROGRAM_CONSTANT) {
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/* a literal */
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const int component = GET_SWZ(src->Swizzle, channel);
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const GLfloat *param =
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c->fp->program.Base.Parameters->ParameterValues[src->Index];
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GLfloat value = param[component];
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if (src->Negate & (1 << channel))
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value = -value;
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if (src->Abs)
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value = FABSF(value);
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#if 0
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printf(" form immed value %f for chan %d\n", value, channel);
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#endif
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return brw_imm_f(value);
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}
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else {
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return get_src_reg(c, inst, srcRegIndex, channel);
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}
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}
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/**
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* Subroutines are minimal support for resusable instruction sequences.
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* They are implemented as simply as possible to minimise overhead: there
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@ -1013,100 +977,6 @@ static void emit_frontfacing(struct brw_wm_compile *c,
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brw_set_predicate_control_flag_value(p, 0xff);
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}
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static void emit_xpd(struct brw_wm_compile *c,
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const struct prog_instruction *inst)
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{
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int i;
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struct brw_compile *p = &c->func;
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GLuint mask = inst->DstReg.WriteMask;
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for (i = 0; i < 4; i++) {
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GLuint i2 = (i+2)%3;
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GLuint i1 = (i+1)%3;
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if (mask & (1<<i)) {
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struct brw_reg src0, src1, dst;
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dst = get_dst_reg(c, inst, i);
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src0 = negate(get_src_reg(c, inst, 0, i2));
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src1 = get_src_reg_imm(c, inst, 1, i1);
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brw_MUL(p, brw_null_reg(), src0, src1);
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src0 = get_src_reg(c, inst, 0, i1);
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src1 = get_src_reg_imm(c, inst, 1, i2);
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brw_set_saturate(p, inst->SaturateMode != SATURATE_OFF);
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brw_MAC(p, dst, src0, src1);
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brw_set_saturate(p, 0);
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}
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}
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brw_set_saturate(p, 0);
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}
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/**
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* Emit a scalar instruction, like RCP, RSQ, LOG, EXP.
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* Note that the result of the function is smeared across the dest
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* register's X, Y, Z and W channels (subject to writemasking of course).
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*/
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static void emit_math1(struct brw_wm_compile *c,
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const struct prog_instruction *inst, GLuint func)
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{
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struct brw_compile *p = &c->func;
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struct brw_reg src0, dst;
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GLuint mask = inst->DstReg.WriteMask;
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int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1;
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if (!(mask & WRITEMASK_XYZW))
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return;
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assert(is_power_of_two(mask & WRITEMASK_XYZW));
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/* Get first component of source register */
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dst = get_dst_reg(c, inst, dst_chan);
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src0 = get_src_reg(c, inst, 0, 0);
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brw_MOV(p, brw_message_reg(2), src0);
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brw_math(p,
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dst,
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func,
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(inst->SaturateMode != SATURATE_OFF) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
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2,
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brw_null_reg(),
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BRW_MATH_DATA_VECTOR,
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BRW_MATH_PRECISION_FULL);
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}
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static void emit_rcp(struct brw_wm_compile *c,
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const struct prog_instruction *inst)
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{
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emit_math1(c, inst, BRW_MATH_FUNCTION_INV);
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}
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static void emit_rsq(struct brw_wm_compile *c,
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const struct prog_instruction *inst)
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{
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emit_math1(c, inst, BRW_MATH_FUNCTION_RSQ);
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}
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static void emit_sin(struct brw_wm_compile *c,
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const struct prog_instruction *inst)
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{
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emit_math1(c, inst, BRW_MATH_FUNCTION_SIN);
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}
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static void emit_cos(struct brw_wm_compile *c,
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const struct prog_instruction *inst)
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{
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emit_math1(c, inst, BRW_MATH_FUNCTION_COS);
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}
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static void emit_ex2(struct brw_wm_compile *c,
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const struct prog_instruction *inst)
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{
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emit_math1(c, inst, BRW_MATH_FUNCTION_EXP);
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}
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static void emit_lg2(struct brw_wm_compile *c,
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const struct prog_instruction *inst)
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{
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emit_math1(c, inst, BRW_MATH_FUNCTION_LOG);
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}
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static void emit_arl(struct brw_wm_compile *c,
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const struct prog_instruction *inst)
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{
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@ -1169,36 +1039,6 @@ static void emit_min_max(struct brw_wm_compile *c,
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release_tmps(c, mark);
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}
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static void emit_pow(struct brw_wm_compile *c,
|
||||
const struct prog_instruction *inst)
|
||||
{
|
||||
struct brw_compile *p = &c->func;
|
||||
struct brw_reg dst, src0, src1;
|
||||
GLuint mask = inst->DstReg.WriteMask;
|
||||
int dst_chan = _mesa_ffs(mask & WRITEMASK_XYZW) - 1;
|
||||
|
||||
if (!(mask & WRITEMASK_XYZW))
|
||||
return;
|
||||
|
||||
assert(is_power_of_two(mask & WRITEMASK_XYZW));
|
||||
|
||||
dst = get_dst_reg(c, inst, dst_chan);
|
||||
src0 = get_src_reg_imm(c, inst, 0, 0);
|
||||
src1 = get_src_reg_imm(c, inst, 1, 0);
|
||||
|
||||
brw_MOV(p, brw_message_reg(2), src0);
|
||||
brw_MOV(p, brw_message_reg(3), src1);
|
||||
|
||||
brw_math(p,
|
||||
dst,
|
||||
BRW_MATH_FUNCTION_POW,
|
||||
(inst->SaturateMode != SATURATE_OFF) ? BRW_MATH_SATURATE_SATURATE : BRW_MATH_SATURATE_NONE,
|
||||
2,
|
||||
brw_null_reg(),
|
||||
BRW_MATH_DATA_VECTOR,
|
||||
BRW_MATH_PRECISION_FULL);
|
||||
}
|
||||
|
||||
/**
|
||||
* For GLSL shaders, this KIL will be unconditional.
|
||||
* It may be contained inside an IF/ENDIF structure of course.
|
||||
|
|
@ -2594,28 +2434,28 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c)
|
|||
emit_dp4(p, dst, dst_flags, args[0], args[1]);
|
||||
break;
|
||||
case OPCODE_XPD:
|
||||
emit_xpd(c, inst);
|
||||
emit_xpd(p, dst, dst_flags, args[0], args[1]);
|
||||
break;
|
||||
case OPCODE_DPH:
|
||||
emit_dph(p, dst, dst_flags, args[0], args[1]);
|
||||
break;
|
||||
case OPCODE_RCP:
|
||||
emit_rcp(c, inst);
|
||||
emit_math1(c, BRW_MATH_FUNCTION_INV, dst, dst_flags, args[0]);
|
||||
break;
|
||||
case OPCODE_RSQ:
|
||||
emit_rsq(c, inst);
|
||||
emit_math1(c, BRW_MATH_FUNCTION_RSQ, dst, dst_flags, args[0]);
|
||||
break;
|
||||
case OPCODE_SIN:
|
||||
emit_sin(c, inst);
|
||||
emit_math1(c, BRW_MATH_FUNCTION_SIN, dst, dst_flags, args[0]);
|
||||
break;
|
||||
case OPCODE_COS:
|
||||
emit_cos(c, inst);
|
||||
emit_math1(c, BRW_MATH_FUNCTION_COS, dst, dst_flags, args[0]);
|
||||
break;
|
||||
case OPCODE_EX2:
|
||||
emit_ex2(c, inst);
|
||||
emit_math1(c, BRW_MATH_FUNCTION_EXP, dst, dst_flags, args[0]);
|
||||
break;
|
||||
case OPCODE_LG2:
|
||||
emit_lg2(c, inst);
|
||||
emit_math1(c, BRW_MATH_FUNCTION_LOG, dst, dst_flags, args[0]);
|
||||
break;
|
||||
case OPCODE_MIN:
|
||||
case OPCODE_MAX:
|
||||
|
|
@ -2654,7 +2494,8 @@ static void brw_wm_emit_glsl(struct brw_context *brw, struct brw_wm_compile *c)
|
|||
emit_alu2(p, brw_MUL, dst, dst_flags, args[0], args[1]);
|
||||
break;
|
||||
case OPCODE_POW:
|
||||
emit_pow(c, inst);
|
||||
emit_math2(c, BRW_MATH_FUNCTION_POW,
|
||||
dst, dst_flags, args[0], args[1]);
|
||||
break;
|
||||
case OPCODE_MAD:
|
||||
emit_mad(p, dst, dst_flags, args[0], args[1], args[2]);
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue