static boolean emit_ps_postamble( struct svga_shader_emitter *emit );
-
-
static unsigned
-translate_opcode(
- uint opcode )
+translate_opcode(uint opcode)
{
switch (opcode) {
case TGSI_OPCODE_ABS: return SVGA3DOP_ABS;
case TGSI_OPCODE_ADD: return SVGA3DOP_ADD;
- case TGSI_OPCODE_BREAKC: return SVGA3DOP_BREAKC;
case TGSI_OPCODE_DP2A: return SVGA3DOP_DP2ADD;
case TGSI_OPCODE_DP3: return SVGA3DOP_DP3;
case TGSI_OPCODE_DP4: return SVGA3DOP_DP4;
}
-static unsigned translate_file( unsigned file )
+static unsigned
+translate_file(unsigned file)
{
switch (file) {
case TGSI_FILE_TEMPORARY: return SVGA3DREG_TEMP;
}
-
-
-
-
-static SVGA3dShaderDestToken
+static SVGA3dShaderDestToken
translate_dst_register( struct svga_shader_emitter *emit,
const struct tgsi_full_instruction *insn,
unsigned idx )
assert(index < SVGA3D_TEMPREG_MAX);
index = MIN2(index, SVGA3D_TEMPREG_MAX - 1);
dest = dst_register(translate_file(reg->Register.File), index);
- }
+ }
break;
}
dest.mask = reg->Register.WriteMask;
assert(dest.mask);
- if (insn->Instruction.Saturate)
+ if (insn->Instruction.Saturate)
dest.dstMod = SVGA3DDSTMOD_SATURATE;
return dest;
}
-static struct src_register
-swizzle( struct src_register src,
- int x,
- int y,
- int z,
- int w )
+/**
+ * Apply a swizzle to a src_register, returning a new src_register
+ * Ex: swizzle(SRC.ZZYY, SWIZZLE_Z, SWIZZLE_W, SWIZZLE_X, SWIZZLE_Y)
+ * would return SRC.YYZZ
+ */
+static struct src_register
+swizzle(struct src_register src,
+ unsigned x, unsigned y, unsigned z, unsigned w)
{
+ assert(x < 4);
+ assert(y < 4);
+ assert(z < 4);
+ assert(w < 4);
x = (src.base.swizzle >> (x * 2)) & 0x3;
y = (src.base.swizzle >> (y * 2)) & 0x3;
z = (src.base.swizzle >> (z * 2)) & 0x3;
w = (src.base.swizzle >> (w * 2)) & 0x3;
- src.base.swizzle = TRANSLATE_SWIZZLE(x,y,z,w);
+ src.base.swizzle = TRANSLATE_SWIZZLE(x, y, z, w);
return src;
}
+
+/**
+ * Apply a "scalar" swizzle to a src_register returning a new
+ * src_register where all the swizzle terms are the same.
+ * Ex: scalar(SRC.WZYX, SWIZZLE_Y) would return SRC.ZZZZ
+ */
static struct src_register
-scalar( struct src_register src,
- int comp )
+scalar(struct src_register src, unsigned comp)
{
+ assert(comp < 4);
return swizzle( src, comp, comp, comp, comp );
}
-static INLINE boolean
+
+static boolean
svga_arl_needs_adjustment( const struct svga_shader_emitter *emit )
{
int i;
return FALSE;
}
-static INLINE int
+
+static int
svga_arl_adjustment( const struct svga_shader_emitter *emit )
{
int i;
return 0;
}
-static struct src_register
+
+static struct src_register
translate_src_register( const struct svga_shader_emitter *emit,
const struct tgsi_full_src_register *reg )
{
*/
src = emit->input_map[reg->Register.Index];
break;
-
+
case TGSI_FILE_IMMEDIATE:
/* Immediates are appended after TGSI constants in the D3D
* constant buffer.
*/
src = src_register( translate_file( reg->Register.File ),
- reg->Register.Index +
- emit->imm_start );
+ reg->Register.Index + emit->imm_start );
break;
default:
src = src_register( translate_file( reg->Register.File ),
reg->Register.Index );
-
break;
}
* Note: if we exceed the temporary register limit we just use
* register SVGA3D_TEMPREG_MAX - 1.
*/
-static INLINE SVGA3dShaderDestToken
+static SVGA3dShaderDestToken
get_temp( struct svga_shader_emitter *emit )
{
int i = emit->nr_hw_temp + emit->internal_temp_count++;
return dst_register( SVGA3DREG_TEMP, i );
}
-/* Release a single temp. Currently only effective if it was the last
+
+/**
+ * Release a single temp. Currently only effective if it was the last
* allocated temp, otherwise release will be delayed until the next
* call to reset_temp_regs().
*/
-static INLINE void
+static void
release_temp( struct svga_shader_emitter *emit,
SVGA3dShaderDestToken temp )
{
emit->internal_temp_count--;
}
-static void reset_temp_regs( struct svga_shader_emitter *emit )
+
+static void
+reset_temp_regs(struct svga_shader_emitter *emit)
{
emit->internal_temp_count = 0;
}
-
+
+
+/** Emit bytecode for a src_register */
+static boolean
+emit_src(struct svga_shader_emitter *emit, const struct src_register src)
+{
+ if (src.base.relAddr) {
+ assert(src.base.reserved0);
+ assert(src.indirect.reserved0);
+ return (svga_shader_emit_dword( emit, src.base.value ) &&
+ svga_shader_emit_dword( emit, src.indirect.value ));
+ }
+ else {
+ assert(src.base.reserved0);
+ return svga_shader_emit_dword( emit, src.base.value );
+ }
+}
+
+
+/** Emit bytecode for a dst_register */
+static boolean
+emit_dst(struct svga_shader_emitter *emit, SVGA3dShaderDestToken dest)
+{
+ assert(dest.reserved0);
+ assert(dest.mask);
+ return svga_shader_emit_dword( emit, dest.value );
+}
+
+
+/** Emit bytecode for a 1-operand instruction */
+static boolean
+emit_op1(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest,
+ struct src_register src0)
+{
+ return (emit_instruction(emit, inst) &&
+ emit_dst(emit, dest) &&
+ emit_src(emit, src0));
+}
+
+
+/** Emit bytecode for a 2-operand instruction */
+static boolean
+emit_op2(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest,
+ struct src_register src0,
+ struct src_register src1)
+{
+ return (emit_instruction(emit, inst) &&
+ emit_dst(emit, dest) &&
+ emit_src(emit, src0) &&
+ emit_src(emit, src1));
+}
+
+
+/** Emit bytecode for a 3-operand instruction */
+static boolean
+emit_op3(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest,
+ struct src_register src0,
+ struct src_register src1,
+ struct src_register src2)
+{
+ return (emit_instruction(emit, inst) &&
+ emit_dst(emit, dest) &&
+ emit_src(emit, src0) &&
+ emit_src(emit, src1) &&
+ emit_src(emit, src2));
+}
+
+
+/** Emit bytecode for a 4-operand instruction */
+static boolean
+emit_op4(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest,
+ struct src_register src0,
+ struct src_register src1,
+ struct src_register src2,
+ struct src_register src3)
+{
+ return (emit_instruction(emit, inst) &&
+ emit_dst(emit, dest) &&
+ emit_src(emit, src0) &&
+ emit_src(emit, src1) &&
+ emit_src(emit, src2) &&
+ emit_src(emit, src3));
+}
+
+
+/**
+ * Apply the absolute value modifier to the given src_register, returning
+ * a new src_register.
+ */
+static struct src_register
+absolute(struct src_register src)
+{
+ src.base.srcMod = SVGA3DSRCMOD_ABS;
+ return src;
+}
+
+
+/**
+ * Apply the negation modifier to the given src_register, returning
+ * a new src_register.
+ */
+static struct src_register
+negate(struct src_register src)
+{
+ switch (src.base.srcMod) {
+ case SVGA3DSRCMOD_ABS:
+ src.base.srcMod = SVGA3DSRCMOD_ABSNEG;
+ break;
+ case SVGA3DSRCMOD_ABSNEG:
+ src.base.srcMod = SVGA3DSRCMOD_ABS;
+ break;
+ case SVGA3DSRCMOD_NEG:
+ src.base.srcMod = SVGA3DSRCMOD_NONE;
+ break;
+ case SVGA3DSRCMOD_NONE:
+ src.base.srcMod = SVGA3DSRCMOD_NEG;
+ break;
+ }
+ return src;
+}
+
+
/* Replace the src with the temporary specified in the dst, but copying
* only the necessary channels, and preserving the original swizzle (which is
* important given that several opcodes have constraints in the allowed
* swizzles).
*/
-static boolean emit_repl( struct svga_shader_emitter *emit,
- SVGA3dShaderDestToken dst,
- struct src_register *src0)
+static boolean
+emit_repl(struct svga_shader_emitter *emit,
+ SVGA3dShaderDestToken dst,
+ struct src_register *src0)
{
unsigned src0_swizzle;
unsigned chan;
}
-static boolean submit_op0( struct svga_shader_emitter *emit,
- SVGA3dShaderInstToken inst,
- SVGA3dShaderDestToken dest )
+static boolean
+submit_op0(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest)
{
- return (emit_instruction( emit, inst ) &&
+ return (emit_instruction( emit, inst ) &&
emit_dst( emit, dest ));
}
-static boolean submit_op1( struct svga_shader_emitter *emit,
- SVGA3dShaderInstToken inst,
- SVGA3dShaderDestToken dest,
- struct src_register src0 )
+
+static boolean
+submit_op1(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest,
+ struct src_register src0)
{
return emit_op1( emit, inst, dest, src0 );
}
-/* SVGA shaders may not refer to >1 constant register in a single
+/**
+ * SVGA shaders may not refer to >1 constant register in a single
* instruction. This function checks for that usage and inserts a
* move to temporary if detected.
*
* The same applies to input registers -- at most a single input
* register may be read by any instruction.
*/
-static boolean submit_op2( struct svga_shader_emitter *emit,
- SVGA3dShaderInstToken inst,
- SVGA3dShaderDestToken dest,
- struct src_register src0,
- struct src_register src1 )
+static boolean
+submit_op2(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest,
+ struct src_register src0,
+ struct src_register src1)
{
SVGA3dShaderDestToken temp;
SVGA3dShaderRegType type0, type1;
}
-/* SVGA shaders may not refer to >1 constant register in a single
+/**
+ * SVGA shaders may not refer to >1 constant register in a single
* instruction. This function checks for that usage and inserts a
* move to temporary if detected.
*/
-static boolean submit_op3( struct svga_shader_emitter *emit,
- SVGA3dShaderInstToken inst,
- SVGA3dShaderDestToken dest,
- struct src_register src0,
- struct src_register src1,
- struct src_register src2 )
+static boolean
+submit_op3(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest,
+ struct src_register src0,
+ struct src_register src1,
+ struct src_register src2)
{
SVGA3dShaderDestToken temp0;
SVGA3dShaderDestToken temp1;
if (need_temp0) {
temp0 = get_temp( emit );
-
+
if (!emit_repl( emit, temp0, &src0 ))
return FALSE;
}
}
-
-
-/* SVGA shaders may not refer to >1 constant register in a single
+/**
+ * SVGA shaders may not refer to >1 constant register in a single
* instruction. This function checks for that usage and inserts a
* move to temporary if detected.
*/
-static boolean submit_op4( struct svga_shader_emitter *emit,
- SVGA3dShaderInstToken inst,
- SVGA3dShaderDestToken dest,
- struct src_register src0,
- struct src_register src1,
- struct src_register src2,
- struct src_register src3)
+static boolean
+submit_op4(struct svga_shader_emitter *emit,
+ SVGA3dShaderInstToken inst,
+ SVGA3dShaderDestToken dest,
+ struct src_register src0,
+ struct src_register src1,
+ struct src_register src2,
+ struct src_register src3)
{
SVGA3dShaderDestToken temp0;
SVGA3dShaderDestToken temp3;
if (need_temp0) {
temp0 = get_temp( emit );
-
+
if (!emit_repl( emit, temp0, &src0 ))
return FALSE;
}
}
-static boolean alias_src_dst( struct src_register src,
- SVGA3dShaderDestToken dst )
+/**
+ * Do the src and dest registers refer to the same register?
+ */
+static boolean
+alias_src_dst(struct src_register src,
+ SVGA3dShaderDestToken dst)
{
if (src.base.num != dst.num)
return FALSE;
}
-static boolean submit_lrp(struct svga_shader_emitter *emit,
- SVGA3dShaderDestToken dst,
- struct src_register src0,
- struct src_register src1,
- struct src_register src2)
+static boolean
+submit_lrp(struct svga_shader_emitter *emit,
+ SVGA3dShaderDestToken dst,
+ struct src_register src0,
+ struct src_register src1,
+ struct src_register src2)
{
SVGA3dShaderDestToken tmp;
boolean need_dst_tmp = FALSE;
}
-static boolean emit_def_const( struct svga_shader_emitter *emit,
- SVGA3dShaderConstType type,
- unsigned idx,
- float a,
- float b,
- float c,
- float d )
+static boolean
+emit_def_const(struct svga_shader_emitter *emit,
+ SVGA3dShaderConstType type,
+ unsigned idx, float a, float b, float c, float d)
{
SVGA3DOpDefArgs def;
SVGA3dShaderInstToken opcode;
return TRUE;
}
-static INLINE boolean
+
+static boolean
create_zero_immediate( struct svga_shader_emitter *emit )
{
unsigned idx = emit->nr_hw_float_const++;
- /* Emit the constant (0, 0, -1, 1) and use swizzling to generate
+ /* Emit the constant (0, 0.5, -1, 1) and use swizzling to generate
* other useful vectors.
*/
if (!emit_def_const( emit, SVGA3D_CONST_TYPE_FLOAT,
- idx, 0, 0, -1, 1 ))
+ idx, 0, 0.5, -1, 1 ))
return FALSE;
emit->zero_immediate_idx = idx;
return TRUE;
}
-static INLINE boolean
+
+static boolean
create_loop_const( struct svga_shader_emitter *emit )
{
unsigned idx = emit->nr_hw_int_const++;
return TRUE;
}
-static INLINE boolean
+static boolean
create_arl_consts( struct svga_shader_emitter *emit )
{
int i;
unsigned idx = emit->nr_hw_float_const++;
float vals[4];
for (j = 0; j < 4 && (j + i) < emit->num_arl_consts; ++j) {
- vals[j] = emit->arl_consts[i + j].number;
+ vals[j] = (float) emit->arl_consts[i + j].number;
emit->arl_consts[i + j].idx = idx;
switch (j) {
case 0:
return TRUE;
}
-static INLINE struct src_register
+
+/**
+ * Return the register which holds the pixel shaders front/back-
+ * facing value.
+ */
+static struct src_register
get_vface( struct svga_shader_emitter *emit )
{
assert(emit->emitted_vface);
- return src_register(SVGA3DREG_MISCTYPE,
- SVGA3DMISCREG_FACE);
+ return src_register(SVGA3DREG_MISCTYPE, SVGA3DMISCREG_FACE);
}
-/* returns {0, 0, 0, 1} immediate */
-static INLINE struct src_register
+
+/**
+ * returns {0, 0, 0, 1} immediate
+ */
+static struct src_register
get_zero_immediate( struct svga_shader_emitter *emit )
{
assert(emit->created_zero_immediate);
0, 0, 0, 3);
}
-/* returns {1, 1, 1, -1} immediate */
-static INLINE struct src_register
+
+/**
+ * returns {1, 1, 1, -1} immediate
+ */
+static struct src_register
get_pos_neg_one_immediate( struct svga_shader_emitter *emit )
{
assert(emit->created_zero_immediate);
3, 3, 3, 2);
}
-/* returns the loop const */
-static INLINE struct src_register
+
+/**
+ * returns {0.5, 0.5, 0.5, 0.5} immediate
+ */
+static struct src_register
+get_half_immediate( struct svga_shader_emitter *emit )
+{
+ assert(emit->created_zero_immediate);
+ assert(emit->zero_immediate_idx >= 0);
+ return swizzle(src_register(SVGA3DREG_CONST, emit->zero_immediate_idx),
+ 1, 1, 1, 1);
+}
+
+
+/**
+ * returns the loop const
+ */
+static struct src_register
get_loop_const( struct svga_shader_emitter *emit )
{
assert(emit->created_loop_const);
emit->loop_const_idx );
}
-static INLINE struct src_register
+
+static struct src_register
get_fake_arl_const( struct svga_shader_emitter *emit )
{
struct src_register reg;
return scalar(reg, swizzle);
}
-static INLINE struct src_register
+
+/**
+ * Return the register which holds the current dimenions of the
+ * texture bound to the given sampler
+ */
+static struct src_register
get_tex_dimensions( struct svga_shader_emitter *emit, int sampler_num )
{
int idx;
return reg;
}
-static boolean emit_fake_arl(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+
+static boolean
+emit_fake_arl(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
- const struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
+ const struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0] );
struct src_register src1 = get_fake_arl_const( emit );
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
SVGA3dShaderDestToken tmp = get_temp( emit );
dst, src1 );
}
-static boolean emit_if(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+
+static boolean
+emit_if(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
- struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
+ struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0]);
struct src_register zero = get_zero_immediate( emit );
SVGA3dShaderInstToken if_token = inst_token( SVGA3DOP_IFC );
/*
* Max different constant registers readable per IFC instruction is 1.
*/
-
SVGA3dShaderDestToken tmp = get_temp( emit );
if (!submit_op1(emit, inst_token( SVGA3DOP_MOV ), tmp, src0))
emit_src( emit, zero ) );
}
-static boolean emit_endif(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+
+static boolean
+emit_endif(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
emit->dynamic_branching_level--;
- return (emit_instruction( emit,
- inst_token( SVGA3DOP_ENDIF )));
+ return emit_instruction(emit, inst_token(SVGA3DOP_ENDIF));
}
-static boolean emit_else(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+
+static boolean
+emit_else(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
- return (emit_instruction( emit,
- inst_token( SVGA3DOP_ELSE )));
+ return emit_instruction(emit, inst_token(SVGA3DOP_ELSE));
}
-/* Translate the following TGSI FLR instruction.
+
+/**
+ * Translate the following TGSI FLR instruction.
* FLR DST, SRC
* To the following SVGA3D instruction sequence.
* FRC TMP, SRC
* SUB DST, SRC, TMP
*/
-static boolean emit_floor(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_floor(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn )
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- const struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
+ const struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0] );
SVGA3dShaderDestToken temp = get_temp( emit );
/* FRC TMP, SRC */
}
-/* Translate the following TGSI CEIL instruction.
+/**
+ * Translate the following TGSI CEIL instruction.
* CEIL DST, SRC
* To the following SVGA3D instruction sequence.
* FRC TMP, -SRC
* ADD DST, SRC, TMP
*/
-static boolean emit_ceil(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+static boolean
+emit_ceil(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register(emit, insn, 0);
- const struct src_register src0 = translate_src_register(emit, &insn->Src[0]);
+ const struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0]);
SVGA3dShaderDestToken temp = get_temp(emit);
/* FRC TMP, -SRC */
}
-/* Translate the following TGSI CMP instruction.
- * CMP DST, SRC0, SRC1, SRC2
- * To the following SVGA3D instruction sequence.
- * CMP DST, SRC0, SRC2, SRC1
- */
-static boolean emit_cmp(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
-{
- SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- const struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
- const struct src_register src1 = translate_src_register(
- emit, &insn->Src[1] );
- const struct src_register src2 = translate_src_register(
- emit, &insn->Src[2] );
-
- if (emit->unit == PIPE_SHADER_VERTEX) {
- SVGA3dShaderDestToken temp = get_temp(emit);
- struct src_register zero = scalar(get_zero_immediate(emit), TGSI_SWIZZLE_X);
-
- /* Since vertex shaders don't support the CMP instruction,
- * simulate it with SLT and LRP instructions.
- * SLT TMP, SRC0, 0.0
- * LRP DST, TMP, SRC1, SRC2
- */
- if (!submit_op2(emit, inst_token(SVGA3DOP_SLT), temp, src0, zero))
- return FALSE;
- return submit_lrp(emit, dst, src(temp), src1, src2);
- }
-
- /* CMP DST, SRC0, SRC2, SRC1 */
- return submit_op3( emit, inst_token( SVGA3DOP_CMP ), dst, src0, src2, src1);
-}
-
-
-
-/* Translate the following TGSI DIV instruction.
+/**
+ * Translate the following TGSI DIV instruction.
* DIV DST.xy, SRC0, SRC1
* To the following SVGA3D instruction sequence.
* RCP TMP.x, SRC1.xxxx
* RCP TMP.y, SRC1.yyyy
* MUL DST.xy, SRC0, TMP
*/
-static boolean emit_div(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_div(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn )
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- const struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
- const struct src_register src1 = translate_src_register(
- emit, &insn->Src[1] );
+ const struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0] );
+ const struct src_register src1 =
+ translate_src_register(emit, &insn->Src[1] );
SVGA3dShaderDestToken temp = get_temp( emit );
int i;
unsigned channel = 1 << i;
if (dst.mask & channel) {
/* RCP TMP.?, SRC1.???? */
- if (!submit_op1( emit, inst_token( SVGA3DOP_RCP ),
- writemask(temp, channel),
+ if (!submit_op1( emit, inst_token( SVGA3DOP_RCP ),
+ writemask(temp, channel),
scalar(src1, i) ))
return FALSE;
}
}
- /* Then multiply them out with a single mul:
- *
+ /* Vector mul:
* MUL DST, SRC0, TMP
*/
if (!submit_op2( emit, inst_token( SVGA3DOP_MUL ), dst, src0,
return TRUE;
}
-/* Translate the following TGSI DP2 instruction.
+
+/**
+ * Translate the following TGSI DP2 instruction.
* DP2 DST, SRC1, SRC2
* To the following SVGA3D instruction sequence.
* MUL TMP, SRC1, SRC2
* ADD DST, TMP.xxxx, TMP.yyyy
*/
-static boolean emit_dp2(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_dp2(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn )
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- const struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
- const struct src_register src1 = translate_src_register(
- emit, &insn->Src[1] );
+ const struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0]);
+ const struct src_register src1 =
+ translate_src_register(emit, &insn->Src[1]);
SVGA3dShaderDestToken temp = get_temp( emit );
struct src_register temp_src0, temp_src1;
}
-/* Translate the following TGSI DPH instruction.
+/**
+ * Translate the following TGSI DPH instruction.
* DPH DST, SRC1, SRC2
* To the following SVGA3D instruction sequence.
* DP3 TMP, SRC1, SRC2
* ADD DST, TMP, SRC2.wwww
*/
-static boolean emit_dph(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_dph(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn )
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
const struct src_register src0 = translate_src_register(
emit, &insn->Src[0] );
- struct src_register src1 = translate_src_register(
- emit, &insn->Src[1] );
+ struct src_register src1 =
+ translate_src_register(emit, &insn->Src[1]);
SVGA3dShaderDestToken temp = get_temp( emit );
/* DP3 TMP, SRC1, SRC2 */
return TRUE;
}
-/* Translate the following TGSI DST instruction.
+
+/**
+ * Translate the following TGSI DST instruction.
* NRM DST, SRC
* To the following SVGA3D instruction sequence.
* DP3 TMP, SRC, SRC
* RSQ TMP, TMP
* MUL DST, SRC, TMP
*/
-static boolean emit_nrm(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_nrm(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- const struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
+ const struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0]);
SVGA3dShaderDestToken temp = get_temp( emit );
/* DP3 TMP, SRC, SRC */
return FALSE;
return TRUE;
-
}
-static boolean do_emit_sincos(struct svga_shader_emitter *emit,
- SVGA3dShaderDestToken dst,
- struct src_register src0)
+
+static boolean
+do_emit_sincos(struct svga_shader_emitter *emit,
+ SVGA3dShaderDestToken dst,
+ struct src_register src0)
{
src0 = scalar(src0, TGSI_SWIZZLE_X);
-
- return submit_op1( emit, inst_token( SVGA3DOP_SINCOS ),
- dst, src0 );
+ return submit_op1(emit, inst_token(SVGA3DOP_SINCOS), dst, src0);
}
-static boolean emit_sincos(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+
+static boolean
+emit_sincos(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
+ struct src_register src0 = translate_src_register(emit, &insn->Src[0]);
SVGA3dShaderDestToken temp = get_temp( emit );
/* SCS TMP SRC */
return TRUE;
}
-/*
+
+/**
* SCS TMP SRC
* MOV DST TMP.yyyy
*/
-static boolean emit_sin(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_sin(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn )
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
+ struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0] );
SVGA3dShaderDestToken temp = get_temp( emit );
/* SCS TMP SRC */
* SCS TMP SRC
* MOV DST TMP.xxxx
*/
-static boolean emit_cos(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_cos(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
+ struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0] );
SVGA3dShaderDestToken temp = get_temp( emit );
/* SCS TMP SRC */
return TRUE;
}
-static boolean emit_ssg(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+
+static boolean
+emit_ssg(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
+ struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0] );
SVGA3dShaderDestToken temp0 = get_temp( emit );
SVGA3dShaderDestToken temp1 = get_temp( emit );
struct src_register zero, one;
src( temp1 ) );
}
-/*
+
+/**
* ADD DST SRC0, negate(SRC0)
*/
-static boolean emit_sub(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+static boolean
+emit_sub(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
struct src_register src0 = translate_src_register(
}
-static boolean emit_kil(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_kil(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
const struct tgsi_full_src_register *reg = &insn->Src[0];
struct src_register src0, srcIn;
}
-/* mesa state tracker always emits kilp as an unconditional
- * kil */
-static boolean emit_kilp(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+/**
+ * mesa state tracker always emits kilp as an unconditional kil
+ */
+static boolean
+emit_kilp(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
- SVGA3dShaderInstToken inst;
SVGA3dShaderDestToken temp;
struct src_register one = scalar( get_zero_immediate( emit ),
TGSI_SWIZZLE_W );
-
- inst = inst_token( SVGA3DOP_TEXKILL );
+ SVGA3dShaderInstToken inst = inst_token( SVGA3DOP_TEXKILL );
/* texkill doesn't allow negation on the operand so lets move
* negation of {1} to a temp register */
*
* SETP src0, cmp, src1 -- do this first to avoid aliasing problems.
* MOV dst, fail
- * MOV dst, pass, p0
+ * MOV dst, pass, p0
*/
static boolean
emit_conditional(struct svga_shader_emitter *emit,
}
}
-
/* Otherwise, need to use the setp approach:
*/
{
}
-static boolean emit_select_op(struct svga_shader_emitter *emit,
- unsigned compare,
- const struct tgsi_full_instruction *insn)
+static boolean
+emit_select_op(struct svga_shader_emitter *emit,
+ unsigned compare,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
struct src_register src0 = translate_src_register(
emit, &insn->Src[0] );
struct src_register src1 = translate_src_register(
emit, &insn->Src[1] );
-
+
return emit_select( emit, compare, dst, src0, src1 );
}
-/* Translate texture instructions to SVGA3D representation.
+/**
+ * Translate TGSI CMP instruction.
*/
-static boolean emit_tex2(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn,
- SVGA3dShaderDestToken dst )
+static boolean
+emit_cmp(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
+{
+ SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
+ const struct src_register src0 =
+ translate_src_register(emit, &insn->Src[0] );
+ const struct src_register src1 =
+ translate_src_register(emit, &insn->Src[1] );
+ const struct src_register src2 =
+ translate_src_register(emit, &insn->Src[2] );
+
+ if (emit->unit == PIPE_SHADER_VERTEX) {
+ struct src_register zero =
+ scalar(get_zero_immediate(emit), TGSI_SWIZZLE_X);
+ /* We used to simulate CMP with SLT+LRP. But that didn't work when
+ * src1 or src2 was Inf/NaN. In particular, GLSL sqrt(0) failed
+ * because it involves a CMP to handle the 0 case.
+ * Use a conditional expression instead.
+ */
+ return emit_conditional(emit, PIPE_FUNC_LESS, dst,
+ src0, zero, src1, src2);
+ }
+ else {
+ assert(emit->unit == PIPE_SHADER_FRAGMENT);
+
+ /* CMP DST, SRC0, SRC2, SRC1 */
+ return submit_op3( emit, inst_token( SVGA3DOP_CMP ), dst,
+ src0, src2, src1);
+ }
+}
+
+
+/**
+ * Translate texture instructions to SVGA3D representation.
+ */
+static boolean
+emit_tex2(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn,
+ SVGA3dShaderDestToken dst)
{
SVGA3dShaderInstToken inst;
struct src_register texcoord;
struct src_register sampler;
SVGA3dShaderDestToken tmp;
-
+
inst.value = 0;
switch (insn->Instruction.Opcode) {
return FALSE;
/* MOV tmp.w, zero */
- if (!submit_op1( emit,
+ if (!submit_op1( emit,
inst_token( SVGA3DOP_MOV ),
- writemask( tmp, TGSI_WRITEMASK_W ),
+ writemask( tmp, TGSI_WRITEMASK_W ),
scalar( zero, TGSI_SWIZZLE_X )))
return FALSE;
-
+
texcoord = src( tmp );
inst.op = SVGA3DOP_TEXLDL;
}
}
-
-
-/* Translate texture instructions to SVGA3D representation.
+/**
+ * Translate texture instructions to SVGA3D representation.
*/
-static boolean emit_tex4(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn,
- SVGA3dShaderDestToken dst )
+static boolean
+emit_tex4(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn,
+ SVGA3dShaderDestToken dst )
{
SVGA3dShaderInstToken inst;
struct src_register texcoord;
inst.value = 0;
switch (insn->Instruction.Opcode) {
- case TGSI_OPCODE_TXD:
+ case TGSI_OPCODE_TXD:
inst.op = SVGA3DOP_TEXLDD; /* 4 args! */
break;
default:
/**
* Emit texture swizzle code.
*/
-static boolean emit_tex_swizzle( struct svga_shader_emitter *emit,
- SVGA3dShaderDestToken dst,
- struct src_register src,
- unsigned swizzle_x,
- unsigned swizzle_y,
- unsigned swizzle_z,
- unsigned swizzle_w)
+static boolean
+emit_tex_swizzle(struct svga_shader_emitter *emit,
+ SVGA3dShaderDestToken dst,
+ struct src_register src,
+ unsigned swizzle_x,
+ unsigned swizzle_y,
+ unsigned swizzle_z,
+ unsigned swizzle_w)
{
const unsigned swizzleIn[4] = {swizzle_x, swizzle_y, swizzle_z, swizzle_w};
unsigned srcSwizzle[4];
/* write x/y/z/w comps */
if (dst.mask & srcWritemask) {
- if (!submit_op1(emit,
- inst_token(SVGA3DOP_MOV),
- writemask(dst, srcWritemask),
+ if (!submit_op1(emit,
+ inst_token(SVGA3DOP_MOV),
+ writemask(dst, srcWritemask),
swizzle(src,
srcSwizzle[0],
srcSwizzle[1],
/* write 0 comps */
if (dst.mask & zeroWritemask) {
- if (!submit_op1(emit,
- inst_token(SVGA3DOP_MOV),
- writemask(dst, zeroWritemask),
+ if (!submit_op1(emit,
+ inst_token(SVGA3DOP_MOV),
+ writemask(dst, zeroWritemask),
scalar(get_zero_immediate(emit), TGSI_SWIZZLE_X)))
return FALSE;
}
/* write 1 comps */
if (dst.mask & oneWritemask) {
- if (!submit_op1(emit,
- inst_token(SVGA3DOP_MOV),
- writemask(dst, oneWritemask),
+ if (!submit_op1(emit,
+ inst_token(SVGA3DOP_MOV),
+ writemask(dst, oneWritemask),
scalar(get_zero_immediate(emit), TGSI_SWIZZLE_W)))
return FALSE;
}
}
-static boolean emit_tex(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_tex(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
- SVGA3dShaderDestToken dst =
+ SVGA3dShaderDestToken dst =
translate_dst_register( emit, insn, 0 );
struct src_register src0 =
translate_src_register( emit, &insn->Src[0] );
assert(0);
}
-
if (compare) {
SVGA3dShaderDestToken dst2;
return TRUE;
}
-static boolean emit_bgnloop2( struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+
+static boolean
+emit_bgnloop2(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderInstToken inst = inst_token( SVGA3DOP_LOOP );
struct src_register loop_reg = src_register( SVGA3DREG_LOOP, 0 );
emit_src( emit, const_int ) );
}
-static boolean emit_endloop2( struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+
+static boolean
+emit_endloop2(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderInstToken inst = inst_token( SVGA3DOP_ENDLOOP );
return emit_instruction( emit, inst );
}
-static boolean emit_brk( struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+
+static boolean
+emit_brk(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderInstToken inst = inst_token( SVGA3DOP_BREAK );
return emit_instruction( emit, inst );
}
-static boolean emit_scalar_op1( struct svga_shader_emitter *emit,
- unsigned opcode,
- const struct tgsi_full_instruction *insn )
+
+static boolean
+emit_scalar_op1(struct svga_shader_emitter *emit,
+ unsigned opcode,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderInstToken inst;
SVGA3dShaderDestToken dst;
}
-static boolean emit_simple_instruction(struct svga_shader_emitter *emit,
- unsigned opcode,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_simple_instruction(struct svga_shader_emitter *emit,
+ unsigned opcode,
+ const struct tgsi_full_instruction *insn)
{
const struct tgsi_full_src_register *src = insn->Src;
SVGA3dShaderInstToken inst;
}
-static boolean emit_deriv(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_deriv(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn )
{
if (emit->dynamic_branching_level > 0 &&
- insn->Src[0].Register.File == TGSI_FILE_TEMPORARY)
+ insn->Src[0].Register.File == TGSI_FILE_TEMPORARY)
{
struct src_register zero = get_zero_immediate( emit );
- SVGA3dShaderDestToken dst =
+ SVGA3dShaderDestToken dst =
translate_dst_register( emit, insn, 0 );
/* Deriv opcodes not valid inside dynamic branching, workaround
* by zeroing out the destination.
*/
- if (!submit_op1(emit,
- inst_token( SVGA3DOP_MOV ),
+ if (!submit_op1(emit,
+ inst_token( SVGA3DOP_MOV ),
dst,
scalar(zero, TGSI_SWIZZLE_X)))
return FALSE;
-
+
return TRUE;
}
else {
}
}
-static boolean emit_arl(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+
+static boolean
+emit_arl(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
++emit->current_arl;
if (emit->unit == PIPE_SHADER_FRAGMENT) {
}
}
-static boolean emit_pow(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+
+static boolean
+emit_pow(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
struct src_register src0 = translate_src_register(
struct src_register src1 = translate_src_register(
emit, &insn->Src[1] );
boolean need_tmp = FALSE;
-
+
/* POW can only output to a temporary */
if (insn->Dst[0].Register.File != TGSI_FILE_TEMPORARY)
need_tmp = TRUE;
-
+
/* POW src1 must not be the same register as dst */
if (alias_src_dst( src1, dst ))
need_tmp = TRUE;
src1 = scalar( src1, TGSI_SWIZZLE_X );
if (need_tmp) {
- SVGA3dShaderDestToken tmp = writemask(get_temp( emit ), TGSI_WRITEMASK_X );
+ SVGA3dShaderDestToken tmp =
+ writemask(get_temp( emit ), TGSI_WRITEMASK_X );
if (!submit_op2(emit, inst_token( SVGA3DOP_POW ), tmp, src0, src1))
return FALSE;
- return submit_op1(emit, inst_token( SVGA3DOP_MOV ), dst, scalar(src(tmp), 0) );
- }
+ return submit_op1(emit, inst_token( SVGA3DOP_MOV ),
+ dst, scalar(src(tmp), 0) );
+ }
else {
return submit_op2(emit, inst_token( SVGA3DOP_POW ), dst, src0, src1);
}
}
-static boolean emit_xpd(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+
+static boolean
+emit_xpd(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
const struct src_register src0 = translate_src_register(
boolean need_dst_tmp = FALSE;
/* XPD can only output to a temporary */
- if (SVGA3dShaderGetRegType(dst.value) != SVGA3DREG_TEMP)
+ if (SVGA3dShaderGetRegType(dst.value) != SVGA3DREG_TEMP)
need_dst_tmp = TRUE;
/* The dst reg must not be the same as src0 or src1*/
if (!submit_op1(emit, inst_token( SVGA3DOP_MOV ), dst, src( tmp )))
return FALSE;
- }
+ }
else {
if (!submit_op2(emit, inst_token( SVGA3DOP_CRS ), dst, src0, src1))
return FALSE;
if (dst.mask & TGSI_WRITEMASK_W) {
struct src_register zero = get_zero_immediate( emit );
- if (!submit_op1(emit,
- inst_token( SVGA3DOP_MOV ),
+ if (!submit_op1(emit,
+ inst_token( SVGA3DOP_MOV ),
writemask(dst, TGSI_WRITEMASK_W),
zero))
return FALSE;
}
-static boolean emit_lrp(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+static boolean
+emit_lrp(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
const struct src_register src0 = translate_src_register(
}
-static boolean emit_dst_insn(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_dst_insn(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
if (emit->unit == PIPE_SHADER_VERTEX) {
/* SVGA/DX9 has a DST instruction, but only for vertex shaders:
return emit_simple_instruction(emit, SVGA3DOP_DST, insn);
}
else {
-
/* result[0] = 1 * 1;
* result[1] = a[1] * b[1];
* result[2] = a[2] * 1;
* result[3] = 1 * b[3];
*/
-
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
SVGA3dShaderDestToken tmp;
const struct src_register src0 = translate_src_register(
/* tmp.xw = 1.0
*/
if (tmp.mask & TGSI_WRITEMASK_XW) {
- if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ),
+ if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ),
writemask(tmp, TGSI_WRITEMASK_XW ),
scalar( zero, 3 )))
return FALSE;
}
-
+
/* tmp.yz = src0
*/
if (tmp.mask & TGSI_WRITEMASK_YZ) {
- if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ),
+ if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ),
writemask(tmp, TGSI_WRITEMASK_YZ ),
src0))
return FALSE;
/* tmp.yw = tmp * src1
*/
if (tmp.mask & TGSI_WRITEMASK_YW) {
- if (!submit_op2( emit, inst_token( SVGA3DOP_MUL ),
+ if (!submit_op2( emit, inst_token( SVGA3DOP_MUL ),
writemask(tmp, TGSI_WRITEMASK_YW ),
src(tmp),
src1))
/* dst = tmp
*/
if (need_tmp) {
- if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ),
+ if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ),
dst,
src(tmp)))
return FALSE;
- }
+ }
}
-
+
return TRUE;
}
-static boolean emit_exp(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+static boolean
+emit_exp(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
struct src_register src0 =
return TRUE;
}
-static boolean emit_lit(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+
+static boolean
+emit_lit(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
if (emit->unit == PIPE_SHADER_VERTEX) {
/* SVGA/DX9 has a LIT instruction, but only for vertex shaders:
return emit_simple_instruction(emit, SVGA3DOP_LIT, insn);
}
else {
-
/* D3D vs. GL semantics can be fairly easily accomodated by
* variations on this sequence.
*
*
* Will implement the GL version for now.
*/
-
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
SVGA3dShaderDestToken tmp = get_temp( emit );
const struct src_register src0 = translate_src_register(
/* tmp = pow(src.y, src.w)
*/
if (dst.mask & TGSI_WRITEMASK_Z) {
- if (!submit_op2(emit, inst_token( SVGA3DOP_POW ),
- tmp,
- scalar(src0, 1),
+ if (!submit_op2(emit, inst_token( SVGA3DOP_POW ),
+ tmp,
+ scalar(src0, 1),
scalar(src0, 3)))
return FALSE;
}
/* tmp.y = src.x
*/
if (dst.mask & TGSI_WRITEMASK_Y) {
- if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ),
+ if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ),
writemask(tmp, TGSI_WRITEMASK_Y ),
scalar(src0, 0)))
return FALSE;
}
-
+
/* Can't quite do this with emit conditional due to the extra
* writemask on the predicated mov:
*/
/* SETP src0.xxyy, GT, {0}.x */
if (!submit_op2( emit, setp_token, pred_reg,
- predsrc,
+ predsrc,
swizzle(zero, 0, 0, 0, 0) ))
return FALSE;
-
+
/* MOV dst, fail */
if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ), dst,
swizzle(zero, 3, 0, 0, 3 )))
}
-
-
-static boolean emit_ex2( struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_ex2(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderInstToken inst;
SVGA3dShaderDestToken dst;
}
-static boolean emit_log(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+static boolean
+emit_log(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
struct src_register src0 =
/**
- * Translate TGSI TRUNC instruction.
+ * Translate TGSI TRUNC or ROUND instruction.
* We need to truncate toward zero. Ex: trunc(-1.9) = -1
* Different approaches are needed for VS versus PS.
*/
static boolean
-emit_trunc(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
+emit_trunc_round(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn,
+ boolean round)
{
SVGA3dShaderDestToken dst = translate_dst_register(emit, insn, 0);
const struct src_register src0 =
translate_src_register(emit, &insn->Src[0] );
SVGA3dShaderDestToken t1 = get_temp(emit);
- /* t1 = fract(abs(src0)) */
- if (!submit_op1(emit, inst_token(SVGA3DOP_FRC), t1, absolute(src0)))
- return FALSE;
+ if (round) {
+ SVGA3dShaderDestToken t0 = get_temp(emit);
+ struct src_register half = get_half_immediate(emit);
- /* t1 = abs(src0) - t1 */
- if (!submit_op2(emit, inst_token(SVGA3DOP_ADD), t1, absolute(src0),
- negate(src(t1))))
- return FALSE;
+ /* t0 = abs(src0) + 0.5 */
+ if (!submit_op2(emit, inst_token(SVGA3DOP_ADD), t0,
+ absolute(src0), half))
+ return FALSE;
+
+ /* t1 = fract(t0) */
+ if (!submit_op1(emit, inst_token(SVGA3DOP_FRC), t1, src(t0)))
+ return FALSE;
+
+ /* t1 = t0 - t1 */
+ if (!submit_op2(emit, inst_token(SVGA3DOP_ADD), t1, src(t0),
+ negate(src(t1))))
+ return FALSE;
+ }
+ else {
+ /* trunc */
+
+ /* t1 = fract(abs(src0)) */
+ if (!submit_op1(emit, inst_token(SVGA3DOP_FRC), t1, absolute(src0)))
+ return FALSE;
+
+ /* t1 = abs(src0) - t1 */
+ if (!submit_op2(emit, inst_token(SVGA3DOP_ADD), t1, absolute(src0),
+ negate(src(t1))))
+ return FALSE;
+ }
/*
* Now we need to multiply t1 by the sign of the original value.
*/
if (emit->unit == PIPE_SHADER_VERTEX) {
/* For VS: use SGN instruction */
- /* Need another temp plus two extra/dummy registers */
+ /* Need two extra/dummy registers: */
SVGA3dShaderDestToken t2 = get_temp(emit), t3 = get_temp(emit),
t4 = get_temp(emit);
}
-static boolean emit_bgnsub( struct svga_shader_emitter *emit,
- unsigned position,
- const struct tgsi_full_instruction *insn )
+static boolean
+emit_bgnsub(struct svga_shader_emitter *emit,
+ unsigned position,
+ const struct tgsi_full_instruction *insn)
{
unsigned i;
* shader.
*/
emit->in_main_func = FALSE;
-
+
for (i = 0; i < emit->nr_labels; i++) {
if (emit->label[i] == position) {
return (emit_instruction( emit, inst_token( SVGA3DOP_RET ) ) &&
return TRUE;
}
-static boolean emit_call( struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn )
+
+static boolean
+emit_call(struct svga_shader_emitter *emit,
+ const struct tgsi_full_instruction *insn)
{
unsigned position = insn->Label.Label;
unsigned i;
-
+
for (i = 0; i < emit->nr_labels; i++) {
- if (emit->label[i] == position)
+ if (emit->label[i] == position)
break;
}
}
-static boolean emit_end( struct svga_shader_emitter *emit )
+/**
+ * Called at the end of the shader. Actually, emit special "fix-up"
+ * code for the vertex/fragment shader.
+ */
+static boolean
+emit_end(struct svga_shader_emitter *emit)
{
if (emit->unit == PIPE_SHADER_VERTEX) {
return emit_vs_postamble( emit );
-static boolean svga_emit_instruction( struct svga_shader_emitter *emit,
- unsigned position,
- const struct tgsi_full_instruction *insn )
+static boolean
+svga_emit_instruction(struct svga_shader_emitter *emit,
+ unsigned position,
+ const struct tgsi_full_instruction *insn)
{
switch (insn->Instruction.Opcode) {
return emit_floor( emit, insn );
case TGSI_OPCODE_TRUNC:
- return emit_trunc( emit, insn );
+ return emit_trunc_round( emit, insn, FALSE );
+
+ case TGSI_OPCODE_ROUND:
+ return emit_trunc_round( emit, insn, TRUE );
case TGSI_OPCODE_CEIL:
return emit_ceil( emit, insn );
* about:
*/
case TGSI_OPCODE_CLAMP:
- case TGSI_OPCODE_ROUND:
case TGSI_OPCODE_AND:
case TGSI_OPCODE_OR:
case TGSI_OPCODE_I2F:
case TGSI_OPCODE_SSG:
return emit_ssg( emit, insn );
- default: {
- unsigned opcode = translate_opcode(insn->Instruction.Opcode);
+ default:
+ {
+ unsigned opcode = translate_opcode(insn->Instruction.Opcode);
- if (opcode == SVGA3DOP_LAST_INST)
- return FALSE;
+ if (opcode == SVGA3DOP_LAST_INST)
+ return FALSE;
- if (!emit_simple_instruction( emit, opcode, insn ))
- return FALSE;
- }
+ if (!emit_simple_instruction( emit, opcode, insn ))
+ return FALSE;
+ }
}
return TRUE;
}
-static boolean svga_emit_immediate( struct svga_shader_emitter *emit,
- struct tgsi_full_immediate *imm)
+static boolean
+svga_emit_immediate(struct svga_shader_emitter *emit,
+ struct tgsi_full_immediate *imm)
{
static const float id[4] = {0,0,0,1};
float value[4];
unsigned i;
assert(1 <= imm->Immediate.NrTokens && imm->Immediate.NrTokens <= 5);
- for (i = 0; i < imm->Immediate.NrTokens - 1; i++)
- value[i] = imm->u[i].Float;
+ for (i = 0; i < imm->Immediate.NrTokens - 1; i++) {
+ float f = imm->u[i].Float;
+ value[i] = util_is_inf_or_nan(f) ? 0.0f : f;
+ }
for ( ; i < 4; i++ )
value[i] = id[i];
value[0], value[1], value[2], value[3]);
}
-static boolean make_immediate( struct svga_shader_emitter *emit,
- float a,
- float b,
- float c,
- float d,
- struct src_register *out )
+
+static boolean
+make_immediate(struct svga_shader_emitter *emit,
+ float a, float b, float c, float d,
+ struct src_register *out )
{
unsigned idx = emit->nr_hw_float_const++;
return TRUE;
}
-static boolean emit_vs_preamble( struct svga_shader_emitter *emit )
+
+static boolean
+emit_vs_preamble(struct svga_shader_emitter *emit)
{
if (!emit->key.vkey.need_prescale) {
if (!make_immediate( emit, 0, 0, .5, .5,
return TRUE;
}
-static boolean emit_ps_preamble( struct svga_shader_emitter *emit )
+
+static boolean
+emit_ps_preamble(struct svga_shader_emitter *emit)
{
if (emit->ps_reads_pos && emit->info.reads_z) {
/*
return TRUE;
}
-static boolean emit_ps_postamble( struct svga_shader_emitter *emit )
+
+static boolean
+emit_ps_postamble(struct svga_shader_emitter *emit)
{
unsigned i;
* oDepth with a hand-crafted MOV below.
*/
if (SVGA3dShaderGetRegType(emit->true_pos.value) != 0) {
-
if (!submit_op1( emit,
inst_token(SVGA3DOP_MOV),
emit->true_pos,
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
if (SVGA3dShaderGetRegType(emit->true_col[i].value) != 0) {
-
/* Potentially override output colors with white for XOR
* logicop workaround.
*/
if (emit->unit == PIPE_SHADER_FRAGMENT &&
emit->key.fkey.white_fragments) {
-
struct src_register one = scalar( get_zero_immediate( emit ),
TGSI_SWIZZLE_W );
return TRUE;
}
-static boolean emit_vs_postamble( struct svga_shader_emitter *emit )
+
+static boolean
+emit_vs_postamble(struct svga_shader_emitter *emit)
{
/* PSIZ output is incredibly fragile and it's very hard to catch
* the types of usage that break it during shader emit. Easier
* touch PSIZ with a hand-crafted MOV below.
*/
if (SVGA3dShaderGetRegType(emit->true_psiz.value) != 0) {
-
if (!submit_op1( emit,
inst_token(SVGA3DOP_MOV),
emit->true_psiz,
SVGA3dShaderDestToken depth = emit->depth_pos;
SVGA3dShaderDestToken pos = emit->true_pos;
unsigned offset = emit->info.file_max[TGSI_FILE_CONSTANT] + 1;
- struct src_register prescale_scale = src_register( SVGA3DREG_CONST,
- offset + 0 );
- struct src_register prescale_trans = src_register( SVGA3DREG_CONST,
- offset + 1 );
+ struct src_register prescale_scale = src_register( SVGA3DREG_CONST,
+ offset + 0 );
+ struct src_register prescale_trans = src_register( SVGA3DREG_CONST,
+ offset + 1 );
if (!submit_op1( emit,
inst_token(SVGA3DOP_MOV),
* MAD result.position, temp_pos.wwww, prescale.trans, temp_pos
* --> Note that prescale.trans.w == 0
*/
- if (!submit_op2( emit,
- inst_token(SVGA3DOP_MUL),
- writemask(temp_pos, TGSI_WRITEMASK_XYZ),
+ if (!submit_op2( emit,
+ inst_token(SVGA3DOP_MUL),
+ writemask(temp_pos, TGSI_WRITEMASK_XYZ),
src(temp_pos),
prescale_scale ))
return FALSE;
- if (!submit_op3( emit,
- inst_token(SVGA3DOP_MAD),
- pos,
+ if (!submit_op3( emit,
+ inst_token(SVGA3DOP_MAD),
+ pos,
swizzle(src(temp_pos), 3, 3, 3, 3),
prescale_trans,
src(temp_pos)))
/* Adjust GL clipping coordinate space to hardware (D3D-style):
*
* DP4 temp_pos.z, {0,0,.5,.5}, temp_pos
- * MOV result.position, temp_pos
+ * MOV result.position, temp_pos
*/
- if (!submit_op2( emit,
- inst_token(SVGA3DOP_DP4),
- writemask(temp_pos, TGSI_WRITEMASK_Z),
- imm_0055,
+ if (!submit_op2( emit,
+ inst_token(SVGA3DOP_DP4),
+ writemask(temp_pos, TGSI_WRITEMASK_Z),
+ imm_0055,
src(temp_pos) ))
return FALSE;
return TRUE;
}
-/*
- 0: IF VFACE :4
- 1: COLOR = FrontColor;
- 2: ELSE
- 3: COLOR = BackColor;
- 4: ENDIF
+
+/**
+ * For the pixel shader: emit the code which chooses the front
+ * or back face color depending on triangle orientation.
+ *
+ * 0: IF VFACE :4
+ * 1: COLOR = FrontColor;
+ * 2: ELSE
+ * 3: COLOR = BackColor;
+ * 4: ENDIF
*/
-static boolean emit_light_twoside( struct svga_shader_emitter *emit )
+static boolean
+emit_light_twoside(struct svga_shader_emitter *emit)
{
struct src_register vface, zero;
struct src_register front[2];
struct src_register back[2];
SVGA3dShaderDestToken color[2];
- int count = emit->internal_color_count;
+ int count = emit->internal_color_count;
int i;
SVGA3dShaderInstToken if_token;
* to reset_temp_regs().
*/
for (i = 0; i < count; i++) {
- color[i] = dst_register( SVGA3DREG_TEMP,
- emit->nr_hw_temp++ );
-
+ color[i] = dst_register( SVGA3DREG_TEMP, emit->nr_hw_temp++ );
front[i] = emit->input_map[emit->internal_color_idx[i]];
/* Back is always the next input:
*/
emit->input_map[emit->internal_color_idx[i]] = src(color[i]);
}
-
+
if_token = inst_token( SVGA3DOP_IFC );
if (emit->key.fkey.front_ccw)
if (!(emit_instruction( emit, inst_token( SVGA3DOP_ELSE))))
return FALSE;
-
+
for (i = 0; i < count; i++) {
if (!submit_op1( emit, inst_token( SVGA3DOP_MOV ), color[i], back[i] ))
return FALSE;
return TRUE;
}
-/*
- 0: SETP_GT TEMP, VFACE, 0
- where TEMP is a fake frontface register
+
+/**
+ * 0: SETP_GT TEMP, VFACE, 0
+ * where TEMP is a fake frontface register
*/
-static boolean emit_frontface( struct svga_shader_emitter *emit )
+static boolean
+emit_frontface(struct svga_shader_emitter *emit)
{
struct src_register vface, zero;
SVGA3dShaderDestToken temp;
* This is used for drawing point sprites when
* pipe_rasterizer_state::sprite_coord_mode == PIPE_SPRITE_COORD_LOWER_LEFT.
*/
-static boolean emit_inverted_texcoords( struct svga_shader_emitter *emit )
+static boolean
+emit_inverted_texcoords(struct svga_shader_emitter *emit)
{
struct src_register zero = get_zero_immediate(emit);
struct src_register pos_neg_one = get_pos_neg_one_immediate( emit );
< Elements(emit->input_map));
/* inverted = coord * (1, -1, 1, 1) + (0, 1, 0, 0) */
- if (!submit_op3(emit,
- inst_token(SVGA3DOP_MAD),
+ if (!submit_op3(emit,
+ inst_token(SVGA3DOP_MAD),
dst(emit->ps_inverted_texcoord[unit]),
emit->ps_true_texcoord[unit],
swizzle(pos_neg_one, 0, 3, 0, 0), /* (1, -1, 1, 1) */
emit->input_map[emit->ps_inverted_texcoord_input[unit]] =
emit->ps_inverted_texcoord[unit];
- inverted_texcoords &= ~(1 << unit);
+ inverted_texcoords &= ~(1 << unit);
}
return TRUE;
}
-static INLINE boolean
+static boolean
needs_to_create_zero( struct svga_shader_emitter *emit )
{
- int i;
+ unsigned i;
if (emit->unit == PIPE_SHADER_FRAGMENT) {
if (emit->key.fkey.light_twoside)
emit->key.fkey.tex[i].swizzle_a > PIPE_SWIZZLE_ALPHA)
return TRUE;
}
+
+ for (i = 0; i < emit->key.fkey.num_textures; i++) {
+ if (emit->key.fkey.tex[i].compare_mode
+ == PIPE_TEX_COMPARE_R_TO_TEXTURE)
+ return TRUE;
+ }
}
if (emit->unit == PIPE_SHADER_VERTEX) {
emit->info.opcode_count[TGSI_OPCODE_BGNLOOP] >= 1 ||
emit->info.opcode_count[TGSI_OPCODE_DDX] >= 1 ||
emit->info.opcode_count[TGSI_OPCODE_DDY] >= 1 ||
+ emit->info.opcode_count[TGSI_OPCODE_ROUND] >= 1 ||
emit->info.opcode_count[TGSI_OPCODE_SGE] >= 1 ||
emit->info.opcode_count[TGSI_OPCODE_SGT] >= 1 ||
emit->info.opcode_count[TGSI_OPCODE_SLE] >= 1 ||
emit->info.opcode_count[TGSI_OPCODE_KILP] >= 1)
return TRUE;
- for (i = 0; i < emit->key.fkey.num_textures; i++) {
- if (emit->key.fkey.tex[i].compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE)
- return TRUE;
- }
-
return FALSE;
}
-static INLINE boolean
+
+static boolean
needs_to_create_loop_const( struct svga_shader_emitter *emit )
{
return (emit->info.opcode_count[TGSI_OPCODE_BGNLOOP] >= 1);
}
-static INLINE boolean
+
+static boolean
needs_to_create_arl_consts( struct svga_shader_emitter *emit )
{
return (emit->num_arl_consts > 0);
}
-static INLINE boolean
+
+static boolean
pre_parse_add_indirect( struct svga_shader_emitter *emit,
int num, int current_arl)
{
return TRUE;
}
+
static boolean
pre_parse_instruction( struct svga_shader_emitter *emit,
const struct tgsi_full_instruction *insn,
return TRUE;
}
+
static boolean
pre_parse_tokens( struct svga_shader_emitter *emit,
const struct tgsi_token *tokens )
return TRUE;
}
-static boolean svga_shader_emit_helpers( struct svga_shader_emitter *emit )
+static boolean
+svga_shader_emit_helpers(struct svga_shader_emitter *emit)
{
if (needs_to_create_zero( emit )) {
create_zero_immediate( emit );
return TRUE;
}
-boolean svga_shader_emit_instructions( struct svga_shader_emitter *emit,
- const struct tgsi_token *tokens )
+
+boolean
+svga_shader_emit_instructions(struct svga_shader_emitter *emit,
+ const struct tgsi_token *tokens)
{
struct tgsi_parse_context parse;
boolean ret = TRUE;
if (!ret)
goto done;
break;
-
+
case TGSI_TOKEN_TYPE_INSTRUCTION:
if (!helpers_emitted) {
if (!svga_shader_emit_helpers( emit ))
goto done;
helpers_emitted = TRUE;
}
- ret = svga_emit_instruction( emit,
+ ret = svga_emit_instruction( emit,
line_nr++,
&parse.FullToken.FullInstruction );
if (!ret)
default:
break;
}
-
+
reset_temp_regs( emit );
}
tgsi_parse_free( &parse );
return ret;
}
-
projects / mesa.git / blobdiff