From 47b883e42ba5f6948ce8050d5a3c7849ba2a1cec Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Wed, 12 Nov 2008 16:44:47 -0700 Subject: mesa: fix bug in GLSL built-in matrix state lookup --- src/mesa/shader/slang/slang_builtin.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'src/mesa/shader/slang') diff --git a/src/mesa/shader/slang/slang_builtin.c b/src/mesa/shader/slang/slang_builtin.c index ed6de40d4b6..fdcd3714a5c 100644 --- a/src/mesa/shader/slang/slang_builtin.c +++ b/src/mesa/shader/slang/slang_builtin.c @@ -109,10 +109,13 @@ lookup_statevar(const char *var, GLint index1, GLint index2, const char *field, if (isMatrix) { if (tokens[0] == STATE_TEXTURE_MATRIX) { if (index1 >= 0) { - tokens[1] = index1; - index1 = 0; /* prevent extra addition at end of function */ + tokens[1] = index1; /* which texture matrix */ } } + if (index1 < 0) { + /* index1 is unused: prevent extra addition at end of function */ + index1 = 0; + } } else if (strcmp(var, "gl_DepthRange") == 0) { tokens[0] = STATE_DEPTH_RANGE; -- cgit v1.2.3 From e556cc82f83716a734ed9d76356ba49bb670004f Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Wed, 12 Nov 2008 16:47:03 -0700 Subject: mesa: remove unused/obsolete __NormalMatrixTranspose matrix --- .../shader/slang/library/slang_common_builtin.gc | 1 - .../shader/slang/library/slang_common_builtin_gc.h | 369 ++++++++++----------- src/mesa/shader/slang/slang_builtin.c | 2 - 3 files changed, 184 insertions(+), 188 deletions(-) (limited to 'src/mesa/shader/slang') diff --git a/src/mesa/shader/slang/library/slang_common_builtin.gc b/src/mesa/shader/slang/library/slang_common_builtin.gc index 561e94f6bab..a051c53eea3 100644 --- a/src/mesa/shader/slang/library/slang_common_builtin.gc +++ b/src/mesa/shader/slang/library/slang_common_builtin.gc @@ -47,7 +47,6 @@ uniform mat4 gl_ModelViewProjectionMatrix; uniform mat4 gl_TextureMatrix[gl_MaxTextureCoords]; uniform mat3 gl_NormalMatrix; -uniform mat3 __NormalMatrixTranspose; // Mesa only uniform mat4 gl_ModelViewMatrixInverse; uniform mat4 gl_ProjectionMatrixInverse; diff --git a/src/mesa/shader/slang/library/slang_common_builtin_gc.h b/src/mesa/shader/slang/library/slang_common_builtin_gc.h index 1dc4825b374..dfe406c2331 100644 --- a/src/mesa/shader/slang/library/slang_common_builtin_gc.h +++ b/src/mesa/shader/slang/library/slang_common_builtin_gc.h @@ -22,193 +22,192 @@ 100,101,108,86,105,101,119,80,114,111,106,101,99,116,105,111,110,77,97,116,114,105,120,0,0,0,2,2, 90,95,4,0,15,1,103,108,95,84,101,120,116,117,114,101,77,97,116,114,105,120,0,3,18,103,108,95,77,97, 120,84,101,120,116,117,114,101,67,111,111,114,100,115,0,0,0,2,2,90,95,4,0,14,1,103,108,95,78,111, -114,109,97,108,77,97,116,114,105,120,0,0,0,2,2,90,95,4,0,14,1,95,95,78,111,114,109,97,108,77,97, -116,114,105,120,84,114,97,110,115,112,111,115,101,0,0,0,2,2,90,95,4,0,15,1,103,108,95,77,111,100, -101,108,86,105,101,119,77,97,116,114,105,120,73,110,118,101,114,115,101,0,0,0,2,2,90,95,4,0,15,1, 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+95,95,114,101,116,86,97,108,0,59,121,0,58,97,116,97,110,0,18,121,95,111,118,101,114,95,120,0,59, 121,0,0,0,20,0,0,1,90,95,0,0,11,0,97,116,97,110,0,1,1,0,0,11,121,95,111,118,101,114,95,120,0,0,0,1, 9,18,95,95,114,101,116,86,97,108,0,59,120,0,58,97,116,97,110,0,18,121,95,111,118,101,114,95,120,0, 59,120,0,0,0,20,0,9,18,95,95,114,101,116,86,97,108,0,59,121,0,58,97,116,97,110,0,18,121,95,111,118, diff --git a/src/mesa/shader/slang/slang_builtin.c b/src/mesa/shader/slang/slang_builtin.c index fdcd3714a5c..20fafee4b9e 100644 --- a/src/mesa/shader/slang/slang_builtin.c +++ b/src/mesa/shader/slang/slang_builtin.c @@ -80,9 +80,7 @@ lookup_statevar(const char *var, GLint index1, GLint index2, const char *field, { "gl_TextureMatrixTranspose", STATE_TEXTURE_MATRIX, 0 }, { "gl_TextureMatrixInverseTranspose", STATE_TEXTURE_MATRIX, STATE_MATRIX_INVERSE }, - /* XXX verify these!!! */ { "gl_NormalMatrix", STATE_MODELVIEW_MATRIX, STATE_MATRIX_TRANSPOSE }, - { "__NormalMatrixTranspose", STATE_MODELVIEW_MATRIX, 0 }, { NULL, 0, 0 } }; -- cgit v1.2.3 From d835f415c692fe1b2656537a822b4e0dd91af6c7 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 13 Nov 2008 08:46:45 -0700 Subject: mesa: use the tighter definition of GLSL ftransform() from the gallium branches --- .../shader/slang/library/slang_vertex_builtin.gc | 5 +- .../shader/slang/library/slang_vertex_builtin_gc.h | 66 ++++++++++++---------- 2 files changed, 40 insertions(+), 31 deletions(-) (limited to 'src/mesa/shader/slang') diff --git a/src/mesa/shader/slang/library/slang_vertex_builtin.gc b/src/mesa/shader/slang/library/slang_vertex_builtin.gc index 20c924a30d7..17e86d9a0ed 100644 --- a/src/mesa/shader/slang/library/slang_vertex_builtin.gc +++ b/src/mesa/shader/slang/library/slang_vertex_builtin.gc @@ -57,7 +57,10 @@ varying float gl_FogFragCoord; vec4 ftransform() { - __retVal = gl_Vertex * gl_ModelViewProjectionMatrixTranspose; + __retVal = gl_ModelViewProjectionMatrix[0] * gl_Vertex.xxxx + + gl_ModelViewProjectionMatrix[1] * gl_Vertex.yyyy + + gl_ModelViewProjectionMatrix[2] * gl_Vertex.zzzz + + gl_ModelViewProjectionMatrix[3] * gl_Vertex.wwww; } diff --git a/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h b/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h index 5fde5f7ee6f..c8e730072fe 100644 --- a/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h +++ b/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h @@ -21,36 +21,42 @@ 114,121,67,111,108,111,114,0,0,0,2,2,90,95,3,0,12,1,103,108,95,84,101,120,67,111,111,114,100,0,3, 18,103,108,95,77,97,120,84,101,120,116,117,114,101,67,111,111,114,100,115,0,0,0,2,2,90,95,3,0,9,1, 103,108,95,70,111,103,70,114,97,103,67,111,111,114,100,0,0,0,1,90,95,0,0,12,0,102,116,114,97,110, -115,102,111,114,109,0,0,1,9,18,95,95,114,101,116,86,97,108,0,18,103,108,95,86,101,114,116,101,120, -0,18,103,108,95,77,111,100,101,108,86,105,101,119,80,114,111,106,101,99,116,105,111,110,77,97,116, 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+112,108,101,114,0,0,1,1,0,0,11,99,111,111,114,100,0,0,1,1,0,0,9,108,111,100,0,0,0,1,3,2,90,95,0,0, +12,1,112,99,111,111,114,100,0,0,0,9,18,112,99,111,111,114,100,0,59,120,121,0,18,99,111,111,114,100, +0,59,120,121,0,18,99,111,111,114,100,0,59,122,0,49,20,0,9,18,112,99,111,111,114,100,0,59,119,0,18, +108,111,100,0,20,0,4,118,101,99,52,95,116,101,120,98,50,100,0,18,95,95,114,101,116,86,97,108,0,0, +18,115,97,109,112,108,101,114,0,0,18,112,99,111,111,114,100,0,0,0,0,1,90,95,0,0,12,0,116,101,120, 116,117,114,101,50,68,80,114,111,106,76,111,100,0,1,1,0,0,17,115,97,109,112,108,101,114,0,0,1,1,0, 0,12,99,111,111,114,100,0,0,1,1,0,0,9,108,111,100,0,0,0,1,3,2,90,95,0,0,12,1,112,99,111,111,114, 100,0,0,0,9,18,112,99,111,111,114,100,0,59,120,121,0,18,99,111,111,114,100,0,59,120,121,0,18,99, -- cgit v1.2.3 From fe984aed5a9ee7c6e000d48a0a584b964fefa848 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 13 Nov 2008 08:47:36 -0700 Subject: mesa: fix accidental regression in GLSL built-in texture matrix lookup Was broken by commit 9aca9a4b72b2a7b378e50bd88f9c3324d07375ec. --- src/mesa/shader/slang/slang_builtin.c | 1 + 1 file changed, 1 insertion(+) (limited to 'src/mesa/shader/slang') diff --git a/src/mesa/shader/slang/slang_builtin.c b/src/mesa/shader/slang/slang_builtin.c index 20fafee4b9e..db00c54b8a2 100644 --- a/src/mesa/shader/slang/slang_builtin.c +++ b/src/mesa/shader/slang/slang_builtin.c @@ -108,6 +108,7 @@ lookup_statevar(const char *var, GLint index1, GLint index2, const char *field, if (tokens[0] == STATE_TEXTURE_MATRIX) { if (index1 >= 0) { tokens[1] = index1; /* which texture matrix */ + index1 = 0; /* prevent extra addition at end of function */ } } if (index1 < 0) { -- cgit v1.2.3 From 4c167f8fc1e56b6c82d8917c237e70531e3d57b9 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 13 Nov 2008 16:31:27 -0700 Subject: mesa: remove some do-nothing GLSL code --- src/mesa/shader/slang/slang_codegen.c | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'src/mesa/shader/slang') diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index dea1fcf0874..78e40fbf876 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -1601,19 +1601,6 @@ resolve_swizzle(const slang_operation *oper) } -/** - * As above, but produce a writemask. - */ -static GLuint -resolve_writemask(slang_assemble_ctx *A, const slang_operation *oper) -{ - GLuint swizzle = resolve_swizzle(oper); - GLuint writemask, swizzleOut; - swizzle_to_writemask(A, swizzle, &writemask, &swizzleOut); - return writemask; -} - - /** * Recursively descend through swizzle nodes to find the node's storage info. */ @@ -1677,14 +1664,11 @@ _slang_gen_asm(slang_assemble_ctx *A, slang_operation *oper, /* Setup n->Store to be a particular location. Otherwise, storage * for the result (a temporary) will be allocated later. */ - GLuint writemask = WRITEMASK_XYZW; slang_operation *dest_oper; slang_ir_node *n0; dest_oper = &oper->children[0]; - writemask = resolve_writemask(A, dest_oper); - n0 = _slang_gen_operation(A, dest_oper); if (!n0) return NULL; -- cgit v1.2.3 From 3a7ed9779b159f9dccbc98d1d556be2cd83cc1fd Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 13 Nov 2008 17:02:11 -0700 Subject: mesa: revamp GLSL instruction emit code This is a step toward better array handling code. In particular, when more than one operand of an instruction uses indirect addressing, we'll need some temporary instructions and registers. By converting IR storage to instruction operands all in one place (emit_instruction()) we can be smarter about this. Also, somewhat better handling of dst register swizzle/writemask handling. This results in tighter writemasks on some instructions which is good for SOA execution. And, cleaner instruction commenting with inst_comment(). Next: remove some more dead code and additional clean-ups... --- src/mesa/shader/slang/slang_emit.c | 625 ++++++++++++++++++++++--------------- 1 file changed, 381 insertions(+), 244 deletions(-) (limited to 'src/mesa/shader/slang') diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c index 827760c917a..482e3e825c1 100644 --- a/src/mesa/shader/slang/slang_emit.c +++ b/src/mesa/shader/slang/slang_emit.c @@ -107,6 +107,30 @@ writemask_to_swizzle(GLuint writemask) } +/** + * Convert a swizzle mask to a writemask. + * Note that the slang_ir_storage->Swizzle field can represent either a + * swizzle mask or a writemask, depending on how it's used. For example, + * when we parse "direction.yz" alone, we don't know whether .yz is a + * writemask or a swizzle. In this case, we encode ".yz" in store->Swizzle + * as a swizzle mask (.yz?? actually). Later, if direction.yz is used as + * an R-value, we use store->Swizzle as-is. Otherwise, if direction.yz is + * used as an L-value, we convert it to a writemask. + */ +static GLuint +swizzle_to_writemask(GLuint swizzle) +{ + GLuint i, writemask = 0x0; + for (i = 0; i < 4; i++) { + GLuint swz = GET_SWZ(swizzle, i); + if (swz <= SWIZZLE_W) { + writemask |= (1 << swz); + } + } + return writemask; +} + + /** * Swizzle a swizzle (function composition). * That is, return swz2(swz1), or said another way: swz1.szw2 @@ -256,6 +280,7 @@ storage_to_dst_reg(struct prog_dst_register *dst, const slang_ir_storage *st, assert(size >= 1); assert(size <= 4); +#if 0 if (size == 1) { GLuint comp = GET_SWZ(swizzle, 0); assert(comp < 4); @@ -264,6 +289,14 @@ storage_to_dst_reg(struct prog_dst_register *dst, const slang_ir_storage *st, else { dst->WriteMask = writemask; } +#elif 1 + if (swizzle != SWIZZLE_XYZW) { + dst->WriteMask = swizzle_to_writemask(swizzle); + } + else { + dst->WriteMask = writemask; + } +#endif } @@ -309,38 +342,28 @@ storage_to_src_reg(struct prog_src_register *src, const slang_ir_storage *st) /* - * Setup an instrucion src register to point to a scalar constant. + * Setup storage pointing to a scalar constant/literal. */ static void -constant_to_src_reg(struct prog_src_register *src, GLfloat val, - slang_emit_info *emitInfo) +constant_to_storage(slang_emit_info *emitInfo, + GLfloat val, + slang_ir_storage *store) { - GLuint zeroSwizzle; - GLint zeroReg; + GLuint swizzle; + GLint reg; GLfloat value[4]; value[0] = val; - zeroReg = _mesa_add_unnamed_constant(emitInfo->prog->Parameters, - value, 1, &zeroSwizzle); - assert(zeroReg >= 0); + reg = _mesa_add_unnamed_constant(emitInfo->prog->Parameters, + value, 1, &swizzle); - src->File = PROGRAM_CONSTANT; - src->Index = zeroReg; - src->Swizzle = zeroSwizzle; + memset(store, 0, sizeof(*store)); + store->File = PROGRAM_CONSTANT; + store->Index = reg; + store->Swizzle = swizzle; } -static void -address_to_dst_reg(struct prog_dst_register *dst, GLuint index) -{ - assert(index == 0); /* only one address reg at this time */ - dst->File = PROGRAM_ADDRESS; - dst->Index = index; - dst->WriteMask = WRITEMASK_X; -} - - - /** * Add new instruction at end of given program. * \param prog the program to append instruction onto @@ -375,6 +398,96 @@ new_instruction(slang_emit_info *emitInfo, gl_inst_opcode opcode) } +/** + * Emit a new instruction with given opcode, operands. + */ +static struct prog_instruction * +emit_instruction(slang_emit_info *emitInfo, + gl_inst_opcode opcode, + const slang_ir_storage *dst, + const slang_ir_storage *src1, + const slang_ir_storage *src2, + const slang_ir_storage *src3) +{ + struct gl_program *prog = emitInfo->prog; + struct prog_instruction *inst; + + prog->Instructions = _mesa_realloc_instructions(prog->Instructions, + prog->NumInstructions, + prog->NumInstructions + 1); + inst = prog->Instructions + prog->NumInstructions; + prog->NumInstructions++; + + _mesa_init_instructions(inst, 1); + inst->Opcode = opcode; + inst->BranchTarget = -1; /* invalid */ + + if (dst) { + GLuint writemask; + switch (dst->Size) { + case 4: + writemask = WRITEMASK_XYZW; + break; + case 3: + writemask = WRITEMASK_XYZ; + break; + case 2: + writemask = WRITEMASK_XY; + break; + case 1: + writemask = WRITEMASK_X << GET_SWZ(dst->Swizzle, 0); + break; + default: + writemask = WRITEMASK_XYZW; + assert(0); + } + storage_to_dst_reg(&inst->DstReg, dst, writemask); + } + + if (src1) + storage_to_src_reg(&inst->SrcReg[0], src1); + if (src2) + storage_to_src_reg(&inst->SrcReg[1], src2); + if (src3) + storage_to_src_reg(&inst->SrcReg[2], src3); + + return inst; +} + + +/** + * Emit an ARL instruction. + */ +static struct prog_instruction * +emit_arl_instruction(slang_emit_info *emitInfo, + GLint addrReg, + const slang_ir_storage *src) +{ + struct prog_instruction *inst; + + assert(addrReg == 0); /* only one addr reg at this time */ + inst = new_instruction(emitInfo, OPCODE_ARL); + storage_to_src_reg(&inst->SrcReg[0], src); + inst->DstReg.File = PROGRAM_ADDRESS; + inst->DstReg.Index = addrReg; + inst->DstReg.WriteMask = WRITEMASK_X; + return inst; +} + + + +/** + * Put a comment on the given instruction. + */ +static void +inst_comment(struct prog_instruction *inst, const char *comment) +{ + if (inst) + inst->Comment = _mesa_strdup(comment); +} + + + /** * Return pointer to last instruction in program. */ @@ -531,12 +644,10 @@ instruction_annotation(gl_inst_opcode opcode, char *dstAnnot, * Emit an instruction that's just a comment. */ static struct prog_instruction * -emit_comment(slang_emit_info *emitInfo, const char *s) +emit_comment(slang_emit_info *emitInfo, const char *comment) { struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_NOP); - if (inst) { - inst->Comment = _mesa_strdup(s); - } + inst_comment(inst, comment); return inst; } @@ -548,22 +659,13 @@ emit_comment(slang_emit_info *emitInfo, const char *s) static struct prog_instruction * emit_arith(slang_emit_info *emitInfo, slang_ir_node *n) { - struct prog_instruction *inst; const slang_ir_info *info = _slang_ir_info(n->Opcode); - char *srcAnnot[3], *dstAnnot; + struct prog_instruction *inst; GLuint i; - slang_ir_node *temps[3]; - - /* we'll save pointers to nodes/storage to free in temps[] until - * the very end. - */ - temps[0] = temps[1] = temps[2] = NULL; assert(info); assert(info->InstOpcode != OPCODE_NOP); - srcAnnot[0] = srcAnnot[1] = srcAnnot[2] = dstAnnot = NULL; - #if PEEPHOLE_OPTIMIZATIONS /* Look for MAD opportunity */ if (info->NumParams == 2 && @@ -572,85 +674,67 @@ emit_arith(slang_emit_info *emitInfo, slang_ir_node *n) emit(emitInfo, n->Children[0]->Children[0]); /* A */ emit(emitInfo, n->Children[0]->Children[1]); /* B */ emit(emitInfo, n->Children[1]); /* C */ - /* generate MAD instruction */ - inst = new_instruction(emitInfo, OPCODE_MAD); - /* operands: A, B, C: */ - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Children[0]->Store); - storage_to_src_reg(&inst->SrcReg[1], n->Children[0]->Children[1]->Store); - storage_to_src_reg(&inst->SrcReg[2], n->Children[1]->Store); - temps[0] = n->Children[0]->Children[0]; - temps[1] = n->Children[0]->Children[1]; - temps[2] = n->Children[1]; - } - else if (info->NumParams == 2 && - n->Opcode == IR_ADD && n->Children[1]->Opcode == IR_MUL) { + alloc_node_storage(emitInfo, n, -1); /* dest */ + + inst = emit_instruction(emitInfo, + OPCODE_MAD, + n->Store, + n->Children[0]->Children[0]->Store, + n->Children[0]->Children[1]->Store, + n->Children[1]->Store); + + free_node_storage(emitInfo->vt, n->Children[0]->Children[0]); + free_node_storage(emitInfo->vt, n->Children[0]->Children[1]); + free_node_storage(emitInfo->vt, n->Children[1]); + return inst; + } + + if (info->NumParams == 2 && + n->Opcode == IR_ADD && n->Children[1]->Opcode == IR_MUL) { /* found pattern IR_ADD(A, IR_MUL(B, C)) */ emit(emitInfo, n->Children[0]); /* A */ emit(emitInfo, n->Children[1]->Children[0]); /* B */ emit(emitInfo, n->Children[1]->Children[1]); /* C */ - /* generate MAD instruction */ - inst = new_instruction(emitInfo, OPCODE_MAD); - /* operands: B, C, A */ - storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Children[0]->Store); - storage_to_src_reg(&inst->SrcReg[1], n->Children[1]->Children[1]->Store); - storage_to_src_reg(&inst->SrcReg[2], n->Children[0]->Store); - temps[0] = n->Children[1]->Children[0]; - temps[1] = n->Children[1]->Children[1]; - temps[2] = n->Children[0]; + alloc_node_storage(emitInfo, n, -1); /* dest */ + + inst = emit_instruction(emitInfo, + OPCODE_MAD, + n->Store, + n->Children[1]->Children[0]->Store, + n->Children[1]->Children[1]->Store, + n->Children[0]->Store); + + free_node_storage(emitInfo->vt, n->Children[1]->Children[0]); + free_node_storage(emitInfo->vt, n->Children[1]->Children[1]); + free_node_storage(emitInfo->vt, n->Children[0]); + return inst; } - else #endif - { - /* normal case */ - /* gen code for children */ - for (i = 0; i < info->NumParams; i++) { - emit(emitInfo, n->Children[i]); - if (!n->Children[i] || !n->Children[i]->Store) { - /* error recovery */ - return NULL; - } + /* gen code for children, may involve temp allocation */ + for (i = 0; i < info->NumParams; i++) { + emit(emitInfo, n->Children[i]); + if (!n->Children[i] || !n->Children[i]->Store) { + /* error recovery */ + return NULL; } - - /* gen this instruction and src registers */ - inst = new_instruction(emitInfo, info->InstOpcode); - for (i = 0; i < info->NumParams; i++) - storage_to_src_reg(&inst->SrcReg[i], n->Children[i]->Store); - - /* annotation */ - for (i = 0; i < info->NumParams; i++) - srcAnnot[i] = storage_annotation(n->Children[i], emitInfo->prog); - - /* record (potential) temps to free */ - for (i = 0; i < info->NumParams; i++) - temps[i] = n->Children[i]; } /* result storage */ alloc_node_storage(emitInfo, n, -1); - assert(n->Store->Index >= 0); - if (n->Store->Size == 2) - n->Writemask = WRITEMASK_XY; - else if (n->Store->Size == 3) - n->Writemask = WRITEMASK_XYZ; - else if (n->Store->Size == 1) - n->Writemask = WRITEMASK_X << GET_SWZ(n->Store->Swizzle, 0); - - - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); + inst = emit_instruction(emitInfo, + info->InstOpcode, + n->Store, /* dest */ + (info->NumParams > 0 ? n->Children[0]->Store : NULL), + (info->NumParams > 1 ? n->Children[1]->Store : NULL), + (info->NumParams > 2 ? n->Children[2]->Store : NULL) + ); - dstAnnot = storage_annotation(n, emitInfo->prog); - - inst->Comment = instruction_annotation(inst->Opcode, dstAnnot, srcAnnot[0], - srcAnnot[1], srcAnnot[2]); - - /* really free temps now */ - for (i = 0; i < 3; i++) - if (temps[i]) - free_node_storage(emitInfo->vt, temps[i]); + /* free temps */ + for (i = 0; i < info->NumParams; i++) + free_node_storage(emitInfo->vt, n->Children[i]); - /*_mesa_print_instruction(inst);*/ return inst; } @@ -662,7 +746,7 @@ emit_arith(slang_emit_info *emitInfo, slang_ir_node *n) static struct prog_instruction * emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) { - struct prog_instruction *inst; + struct prog_instruction *inst = NULL; GLint size; assert(n->Opcode == IR_EQUAL || n->Opcode == IR_NOTEQUAL); @@ -683,15 +767,20 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) size = n->Children[0]->Store->Size; if (size == 1) { - gl_inst_opcode opcode; - - opcode = n->Opcode == IR_EQUAL ? OPCODE_SEQ : OPCODE_SNE; - inst = new_instruction(emitInfo, opcode); - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); - storage_to_src_reg(&inst->SrcReg[1], n->Children[1]->Store); - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); + gl_inst_opcode opcode = n->Opcode == IR_EQUAL ? OPCODE_SEQ : OPCODE_SNE; + inst = emit_instruction(emitInfo, + opcode, + n->Store, /* dest */ + n->Children[0]->Store, + n->Children[1]->Store, + NULL); } else if (size <= 4) { + /* compare two vectors. + * Unfortunately, there's no instruction to compare vectors and + * return a scalar result. Do it with some compare and dot product + * instructions... + */ GLuint swizzle; gl_inst_opcode dotOp; slang_ir_storage tempStore; @@ -716,29 +805,37 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) } /* Compute inequality (temp = (A != B)) */ - inst = new_instruction(emitInfo, OPCODE_SNE); - storage_to_dst_reg(&inst->DstReg, &tempStore, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); - storage_to_src_reg(&inst->SrcReg[1], n->Children[1]->Store); - inst->Comment = _mesa_strdup("Compare values"); + inst = emit_instruction(emitInfo, + OPCODE_SNE, + &tempStore, + n->Children[0]->Store, + n->Children[1]->Store, + NULL); + inst_comment(inst, "Compare values"); /* Compute val = DOT(temp, temp) (reduction) */ - inst = new_instruction(emitInfo, dotOp); - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], &tempStore); - storage_to_src_reg(&inst->SrcReg[1], &tempStore); + inst = emit_instruction(emitInfo, + dotOp, + n->Store, + &tempStore, + &tempStore, + NULL); inst->SrcReg[0].Swizzle = inst->SrcReg[1].Swizzle = swizzle; /*override*/ - inst->Comment = _mesa_strdup("Reduce vec to bool"); + inst_comment(inst, "Reduce vec to bool"); _slang_free_temp(emitInfo->vt, &tempStore); /* free temp */ if (n->Opcode == IR_EQUAL) { /* compute val = !val.x with SEQ val, val, 0; */ - inst = new_instruction(emitInfo, OPCODE_SEQ); - storage_to_src_reg(&inst->SrcReg[0], n->Store); - constant_to_src_reg(&inst->SrcReg[1], 0.0, emitInfo); - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - inst->Comment = _mesa_strdup("Invert true/false"); + slang_ir_storage zero; + constant_to_storage(emitInfo, 0.0, &zero); + inst = emit_instruction(emitInfo, + OPCODE_SEQ, + n->Store, /* dest */ + n->Store, + &zero, + NULL); + inst_comment(inst, "Invert true/false"); } } else { @@ -755,41 +852,54 @@ emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) return NULL; for (i = 0; i < num; i++) { - /* SNE sneTemp, left[i], right[i] */ - inst = new_instruction(emitInfo, OPCODE_SNE); - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); - storage_to_src_reg(&inst->SrcReg[1], n->Children[1]->Store); - inst->SrcReg[0].Index += i; - inst->SrcReg[1].Index += i; + slang_ir_storage srcStore0 = *n->Children[0]->Store; + slang_ir_storage srcStore1 = *n->Children[1]->Store; + srcStore0.Index += i; + srcStore1.Index += i; + if (i == 0) { - storage_to_dst_reg(&inst->DstReg, &accTemp, WRITEMASK_XYZW); - inst->Comment = _mesa_strdup("Begin struct/array comparison"); + /* SNE accTemp, left[i], right[i] */ + inst = emit_instruction(emitInfo, OPCODE_SNE, + &accTemp, /* dest */ + &srcStore0, + &srcStore1, + NULL); + inst_comment(inst, "Begin struct/array comparison"); } else { - storage_to_dst_reg(&inst->DstReg, &sneTemp, WRITEMASK_XYZW); - + /* SNE sneTemp, left[i], right[i] */ + inst = emit_instruction(emitInfo, OPCODE_SNE, + &sneTemp, /* dest */ + &srcStore0, + &srcStore1, + NULL); /* ADD accTemp, accTemp, sneTemp; # like logical-OR */ - inst = new_instruction(emitInfo, OPCODE_ADD); - storage_to_dst_reg(&inst->DstReg, &accTemp, WRITEMASK_XYZW); - storage_to_src_reg(&inst->SrcReg[0], &accTemp); - storage_to_src_reg(&inst->SrcReg[1], &sneTemp); + inst = emit_instruction(emitInfo, OPCODE_ADD, + &accTemp, /* dest */ + &accTemp, + &sneTemp, + NULL); } } /* compute accTemp.x || accTemp.y || accTemp.z || accTemp.w with DOT4 */ - inst = new_instruction(emitInfo, OPCODE_DP4); - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], &accTemp); - storage_to_src_reg(&inst->SrcReg[1], &accTemp); - inst->Comment = _mesa_strdup("End struct/array comparison"); + inst = emit_instruction(emitInfo, OPCODE_DP4, + n->Store, + &accTemp, + &accTemp, + NULL); + inst_comment(inst, "End struct/array comparison"); if (n->Opcode == IR_EQUAL) { /* compute tmp.x = !tmp.x via tmp.x = (tmp.x == 0) */ - inst = new_instruction(emitInfo, OPCODE_SEQ); - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], n->Store); - constant_to_src_reg(&inst->SrcReg[1], 0.0, emitInfo); - inst->Comment = _mesa_strdup("Invert true/false"); + slang_ir_storage zero; + constant_to_storage(emitInfo, 0.0, &zero); + inst = emit_instruction(emitInfo, OPCODE_SEQ, + n->Store, /* dest */ + n->Store, + &zero, + NULL); + inst_comment(inst, "Invert true/false"); } _slang_free_temp(emitInfo->vt, &accTemp); @@ -865,16 +975,18 @@ emit_clamp(slang_emit_info *emitInfo, slang_ir_node *n) alloc_node_storage(emitInfo, &tmpNode, n->Store->Size); /* tmp = max(ch[0], ch[1]) */ - inst = new_instruction(emitInfo, OPCODE_MAX); - storage_to_dst_reg(&inst->DstReg, tmpNode.Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); - storage_to_src_reg(&inst->SrcReg[1], n->Children[1]->Store); + inst = emit_instruction(emitInfo, OPCODE_MAX, + tmpNode.Store, /* dest */ + n->Children[0]->Store, + n->Children[1]->Store, + NULL); /* n->dest = min(tmp, ch[2]) */ - inst = new_instruction(emitInfo, OPCODE_MIN); - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], tmpNode.Store); - storage_to_src_reg(&inst->SrcReg[1], n->Children[2]->Store); + inst = emit_instruction(emitInfo, OPCODE_MIN, + n->Store, /* dest */ + tmpNode.Store, + n->Children[2]->Store, + NULL); free_node_storage(emitInfo->vt, &tmpNode); @@ -896,9 +1008,12 @@ emit_negation(slang_emit_info *emitInfo, slang_ir_node *n) if (!alloc_node_storage(emitInfo, n, n->Children[0]->Store->Size)) return NULL; - inst = new_instruction(emitInfo, OPCODE_MOV); - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); + inst = emit_instruction(emitInfo, + OPCODE_MOV, + n->Store, /* dest */ + n->Children[0]->Store, + NULL, + NULL); inst->SrcReg[0].NegateBase = NEGATE_XYZW; return inst; } @@ -951,7 +1066,7 @@ emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n) * really just a NOP to attach the label to. */ inst = new_instruction(emitInfo, OPCODE_BGNSUB); - inst->Comment = _mesa_strdup(n->Label->Name); + inst_comment(inst, n->Label->Name); } /* body of function: */ @@ -966,7 +1081,7 @@ emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n) if (emitInfo->EmitBeginEndSub) { inst = new_instruction(emitInfo, OPCODE_ENDSUB); - inst->Comment = _mesa_strdup(n->Label->Name); + inst_comment(inst, n->Label->Name); } /* pop/restore cur program */ @@ -976,7 +1091,7 @@ emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n) inst = new_instruction(emitInfo, OPCODE_CAL); /* The branch target is just the subroutine number (changed later) */ inst->BranchTarget = subroutineId; - inst->Comment = _mesa_strdup(n->Label->Name); + inst_comment(inst, n->Label->Name); assert(inst->BranchTarget >= 0); return inst; @@ -1022,28 +1137,33 @@ static struct prog_instruction * emit_tex(slang_emit_info *emitInfo, slang_ir_node *n) { struct prog_instruction *inst; - - (void) emit(emitInfo, n->Children[1]); + gl_inst_opcode opcode; if (n->Opcode == IR_TEX) { - inst = new_instruction(emitInfo, OPCODE_TEX); + opcode = OPCODE_TEX; } else if (n->Opcode == IR_TEXB) { - inst = new_instruction(emitInfo, OPCODE_TXB); + opcode = OPCODE_TXB; } else { assert(n->Opcode == IR_TEXP); - inst = new_instruction(emitInfo, OPCODE_TXP); + opcode = OPCODE_TXP; } + /* emit code for the texcoord operand */ + (void) emit(emitInfo, n->Children[1]); + + /* alloc storage for result of texture fetch */ if (!alloc_node_storage(emitInfo, n, 4)) return NULL; - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - - /* Child[1] is the coord */ - assert(n->Children[1]->Store->Index >= 0); - storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Store); + /* emit TEX instruction; Child[1] is the texcoord */ + inst = emit_instruction(emitInfo, + opcode, + n->Store, + n->Children[1]->Store, + NULL, + NULL); /* Child[0] is the sampler (a uniform which'll indicate the texture unit) */ assert(n->Children[0]->Store); @@ -1054,14 +1174,8 @@ emit_tex(slang_emit_info *emitInfo, slang_ir_node *n) assert(n->Children[0]->Store->Size <= TEXTURE_RECT_INDEX); inst->TexSrcTarget = n->Children[0]->Store->Size; -#if 0 - inst->TexSrcUnit = 27; /* Dummy value; the TexSrcUnit will be computed at - * link time, using the sampler uniform's value. - */ - inst->Sampler = n->Children[0]->Store->Index; /* i.e. uniform's index */ -#else inst->TexSrcUnit = n->Children[0]->Store->Index; /* i.e. uniform's index */ -#endif + return inst; } @@ -1118,6 +1232,11 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) * Modify the RHS (and the prev instruction) to store its results * in the destination specified by n->Children[0]. * Then, this MOVE is a no-op. + * Ex: + * MUL tmp, x, y; + * MOV a, tmp; + * becomes: + * MUL a, x, y; */ if (n->Children[1]->Opcode != IR_SWIZZLE) _slang_free_temp(emitInfo->vt, n->Children[1]->Store); @@ -1127,9 +1246,12 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) assert(n->Children[0]->Store->Index >= 0); /* use tighter writemask when possible */ - if (n->Writemask == WRITEMASK_XYZW) +#if 0 + if (n->Writemask == WRITEMASK_XYZW) { n->Writemask = inst->DstReg.WriteMask; - + printf("Narrow writemask to 0x%x\n", n->Writemask); + } +#endif storage_to_dst_reg(&inst->DstReg, n->Children[0]->Store, n->Writemask); return inst; } @@ -1146,10 +1268,12 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) dstStore.Size = 4; srcStore.Size = 4; while (size >= 4) { - inst = new_instruction(emitInfo, OPCODE_MOV); - inst->Comment = _mesa_strdup("IR_COPY block"); - storage_to_dst_reg(&inst->DstReg, &dstStore, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], &srcStore); + inst = emit_instruction(emitInfo, OPCODE_MOV, + &dstStore, + &srcStore, + NULL, + NULL); + inst_comment(inst, "IR_COPY block"); srcStore.Index++; dstStore.Index++; size -= 4; @@ -1158,10 +1282,12 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) else { /* single register move */ char *srcAnnot, *dstAnnot; - inst = new_instruction(emitInfo, OPCODE_MOV); assert(n->Children[0]->Store->Index >= 0); - storage_to_dst_reg(&inst->DstReg, n->Children[0]->Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Store); + inst = emit_instruction(emitInfo, OPCODE_MOV, + n->Children[0]->Store, /* dest */ + n->Children[1]->Store, + NULL, + NULL); dstAnnot = storage_annotation(n->Children[0], emitInfo->prog); srcAnnot = storage_annotation(n->Children[1], emitInfo->prog); inst->Comment = instruction_annotation(inst->Opcode, dstAnnot, @@ -1218,12 +1344,14 @@ emit_cond(slang_emit_info *emitInfo, slang_ir_node *n) */ if (!alloc_node_storage(emitInfo, n, 1)) return NULL; - inst = new_instruction(emitInfo, OPCODE_MOV); + inst = emit_instruction(emitInfo, OPCODE_MOV, + n->Store, /* dest */ + n->Children[0]->Store, + NULL, + NULL); inst->CondUpdate = GL_TRUE; - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); + inst_comment(inst, "COND expr"); _slang_free_temp(emitInfo->vt, n->Store); - inst->Comment = _mesa_strdup("COND expr"); return inst; } } @@ -1253,6 +1381,7 @@ emit_not(slang_emit_info *emitInfo, slang_ir_node *n) { 0, 0 } }; struct prog_instruction *inst; + slang_ir_storage zero; GLuint i; /* child expr */ @@ -1275,13 +1404,17 @@ emit_not(slang_emit_info *emitInfo, slang_ir_node *n) if (!alloc_node_storage(emitInfo, n, n->Children[0]->Store->Size)) return NULL; - inst = new_instruction(emitInfo, OPCODE_SEQ); - storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); - constant_to_src_reg(&inst->SrcReg[1], 0.0, emitInfo); + constant_to_storage(emitInfo, 0.0, &zero); + inst = emit_instruction(emitInfo, + OPCODE_SEQ, + n->Store, + n->Children[0]->Store, + &zero, + NULL); + inst_comment(inst, "NOT"); + free_node_storage(emitInfo->vt, n->Children[0]); - inst->Comment = _mesa_strdup("NOT"); return inst; } @@ -1315,8 +1448,10 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n) ifInstLoc = prog->NumInstructions; if (emitInfo->EmitHighLevelInstructions) { - struct prog_instruction *ifInst = new_instruction(emitInfo, OPCODE_IF); if (emitInfo->EmitCondCodes) { + /* IF condcode THEN ... */ + struct prog_instruction *ifInst; + ifInst = new_instruction(emitInfo, OPCODE_IF); ifInst->DstReg.CondMask = COND_NE; /* if cond is non-zero */ /* only test the cond code (1 of 4) that was updated by the * previous instruction. @@ -1324,15 +1459,19 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n) ifInst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask); } else { - /* test reg.x */ - storage_to_src_reg(&ifInst->SrcReg[0], n->Children[0]->Store); + /* IF src[0] THEN ... */ + emit_instruction(emitInfo, OPCODE_IF, + NULL, /* dst */ + n->Children[0]->Store, /* op0 */ + NULL, + NULL); } } else { /* conditional jump to else, or endif */ struct prog_instruction *ifInst = new_instruction(emitInfo, OPCODE_BRA); ifInst->DstReg.CondMask = COND_EQ; /* BRA if cond is zero */ - ifInst->Comment = _mesa_strdup("if zero"); + inst_comment(ifInst, "if zero"); ifInst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask); } @@ -1349,7 +1488,7 @@ emit_if(slang_emit_info *emitInfo, slang_ir_node *n) /* jump to endif instruction */ struct prog_instruction *inst; inst = new_instruction(emitInfo, OPCODE_BRA); - inst->Comment = _mesa_strdup("else"); + inst_comment(inst, "else"); inst->DstReg.CondMask = COND_TR; /* always branch */ } prog->Instructions[ifInstLoc].BranchTarget = prog->NumInstructions; @@ -1520,8 +1659,11 @@ emit_cont_break_if_true(slang_emit_info *emitInfo, slang_ir_node *n) */ GLint ifInstLoc; ifInstLoc = emitInfo->prog->NumInstructions; - inst = new_instruction(emitInfo, OPCODE_IF); - storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store); + inst = emit_instruction(emitInfo, OPCODE_IF, + NULL, /* dest */ + n->Children[0]->Store, + NULL, + NULL); n->InstLocation = emitInfo->prog->NumInstructions; inst = new_instruction(emitInfo, opcode); @@ -1583,11 +1725,13 @@ move_block(slang_emit_info *emitInfo, dstStore.Size = 4; srcStore.Size = 4; while (size >= 4) { - inst = new_instruction(emitInfo, OPCODE_MOV); - inst->Comment = _mesa_strdup("IR_COPY block"); - storage_to_dst_reg(&inst->DstReg, &dstStore, WRITEMASK_XYZW); - storage_to_src_reg(&inst->SrcReg[0], &srcStore); + inst = emit_instruction(emitInfo, OPCODE_MOV, + &dstStore, + &srcStore, + NULL, + NULL); inst->SrcReg[0].RelAddr = relAddr; + inst_comment(inst, "IR_COPY block"); srcStore.Index++; dstStore.Index++; size -= 4; @@ -1595,18 +1739,12 @@ move_block(slang_emit_info *emitInfo, } else { /* single register move */ - GLuint writemask; - if (size == 1) { - GLuint comp = GET_SWZ(src->Swizzle, 0); - assert(comp < 4); - writemask = WRITEMASK_X << comp; - } - else { - writemask = WRITEMASK_XYZW; - } - inst = new_instruction(emitInfo, OPCODE_MOV); - storage_to_dst_reg(&inst->DstReg, dst, writemask); - storage_to_src_reg(&inst->SrcReg[0], src); + inst = emit_instruction(emitInfo, + OPCODE_MOV, + dst, + src, + NULL, + NULL); inst->SrcReg[0].RelAddr = relAddr; } return inst; @@ -1617,26 +1755,28 @@ move_block(slang_emit_info *emitInfo, /** * Dereference array element. Just resolve storage for the array * element represented by this node. + * This is typically where Indirect addressing comes into play. + * See comments on struct slang_ir_storage. */ static struct prog_instruction * emit_array_element(slang_emit_info *emitInfo, slang_ir_node *n) { - slang_ir_storage *root; - assert(n->Opcode == IR_ELEMENT); assert(n->Store); assert(n->Store->File == PROGRAM_UNDEFINED); assert(n->Store->Parent); assert(n->Store->Size > 0); - root = n->Store; - while (root->Parent) - root = root->Parent; + { + slang_ir_storage *root = n->Store; + while (root->Parent) + root = root->Parent; - if (root->File == PROGRAM_STATE_VAR) { - GLint index = _slang_alloc_statevar(n, emitInfo->prog->Parameters); - assert(n->Store->Index == index); - return NULL; + if (root->File == PROGRAM_STATE_VAR) { + GLint index = _slang_alloc_statevar(n, emitInfo->prog->Parameters); + assert(n->Store->Index == index); + return NULL; + } } /* do codegen for array */ @@ -1668,30 +1808,30 @@ emit_array_element(slang_emit_info *emitInfo, slang_ir_node *n) if (n->Store->Size > 4) { /* need to multiply the index by the element size */ - GLint elemSize = (n->Store->Size + 3) / 4; - slang_ir_storage indexTemp; + const GLint elemSize = (n->Store->Size + 3) / 4; + slang_ir_storage indexTemp, elemSizeStore; + + /* constant containing the element size */ + constant_to_storage(emitInfo, (float) elemSize, &elemSizeStore); /* allocate 1 float indexTemp */ alloc_local_temp(emitInfo, &indexTemp, 1); /* MUL temp, index, elemSize */ - inst = new_instruction(emitInfo, OPCODE_MUL); - storage_to_dst_reg(&inst->DstReg, &indexTemp, WRITEMASK_X); - storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Store); - constant_to_src_reg(&inst->SrcReg[1], elemSize, emitInfo); + inst = emit_instruction(emitInfo, OPCODE_MUL, + &indexTemp, /* dest */ + n->Children[1]->Store, /* the index */ + &elemSizeStore, + NULL); /* load ADDR[0].X = temp */ - inst = new_instruction(emitInfo, OPCODE_ARL); - storage_to_src_reg(&inst->SrcReg[0], &indexTemp); - address_to_dst_reg(&inst->DstReg, 0); + inst = emit_arl_instruction(emitInfo, 0, &indexTemp); _slang_free_temp(emitInfo->vt, &indexTemp); } else { /* simply load address reg w/ array index */ - inst = new_instruction(emitInfo, OPCODE_ARL); - storage_to_src_reg(&inst->SrcReg[0], n->Children[1]->Store); - address_to_dst_reg(&inst->DstReg, 0); + inst = emit_arl_instruction(emitInfo, 0, n->Children[1]->Store); } /* copy from array element to temp storage */ @@ -1750,8 +1890,6 @@ emit_struct_field(slang_emit_info *emitInfo, slang_ir_node *n) static struct prog_instruction * emit_var_decl(slang_emit_info *emitInfo, slang_ir_node *n) { - struct prog_instruction *inst; - assert(n->Store); assert(n->Store->File != PROGRAM_UNDEFINED); assert(n->Store->Size > 0); @@ -1788,8 +1926,7 @@ emit_var_decl(slang_emit_info *emitInfo, slang_ir_node *n) _mesa_swizzle_string(n->Store->Swizzle, 0, GL_FALSE), (n->Var ? (char *) n->Var->a_name : "anonymous"), n->Store->Size); - inst = emit_comment(emitInfo, s); - return inst; + emit_comment(emitInfo, s); } return NULL; } -- cgit v1.2.3 From 80d6379722a1249ce13db79a898d340644936f67 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 13 Nov 2008 18:18:07 -0700 Subject: mesa: no longer need Writemask field in GLSL IR nodes The Swizzle and Size fields carry all the info we need now. --- src/mesa/shader/slang/slang_codegen.c | 4 -- src/mesa/shader/slang/slang_emit.c | 69 +++++++++++------------------------ src/mesa/shader/slang/slang_ir.c | 18 +-------- src/mesa/shader/slang/slang_ir.h | 1 - 4 files changed, 23 insertions(+), 69 deletions(-) (limited to 'src/mesa/shader/slang') diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index 78e40fbf876..d23ae4d8cb5 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -480,7 +480,6 @@ new_node3(slang_ir_opcode op, n->Children[0] = c0; n->Children[1] = c1; n->Children[2] = c2; - n->Writemask = WRITEMASK_XYZW; n->InstLocation = -1; } return n; @@ -3048,7 +3047,6 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper) rhs = _slang_gen_swizzle(rhs, newSwizzle); } n = new_node2(IR_COPY, lhs, rhs); - n->Writemask = writemask; return n; } else { @@ -3205,8 +3203,6 @@ _slang_gen_array_element(slang_assemble_ctx * A, slang_operation *oper) SWIZZLE_NIL, SWIZZLE_NIL); n = _slang_gen_swizzle(n, swizzle); - /*n->Store = _slang_clone_ir_storage_swz(n->Store, */ - n->Writemask = WRITEMASK_X << index; } assert(n->Store); return n; diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c index 482e3e825c1..b67cea7617d 100644 --- a/src/mesa/shader/slang/slang_emit.c +++ b/src/mesa/shader/slang/slang_emit.c @@ -257,8 +257,7 @@ fix_swizzle(GLuint swizzle) * Convert IR storage to an instruction dst register. */ static void -storage_to_dst_reg(struct prog_dst_register *dst, const slang_ir_storage *st, - GLuint writemask) +storage_to_dst_reg(struct prog_dst_register *dst, const slang_ir_storage *st) { const GLint size = st->Size; GLint index = st->Index; @@ -280,23 +279,29 @@ storage_to_dst_reg(struct prog_dst_register *dst, const slang_ir_storage *st, assert(size >= 1); assert(size <= 4); -#if 0 - if (size == 1) { - GLuint comp = GET_SWZ(swizzle, 0); - assert(comp < 4); - dst->WriteMask = WRITEMASK_X << comp; - } - else { - dst->WriteMask = writemask; - } -#elif 1 if (swizzle != SWIZZLE_XYZW) { dst->WriteMask = swizzle_to_writemask(swizzle); } else { + GLuint writemask; + switch (size) { + case 1: + writemask = WRITEMASK_X << GET_SWZ(st->Swizzle, 0); + break; + case 2: + writemask = WRITEMASK_XY; + break; + case 3: + writemask = WRITEMASK_XYZ; + break; + case 4: + writemask = WRITEMASK_XYZW; + break; + default: + ; /* error would have been caught above */ + } dst->WriteMask = writemask; } -#endif } @@ -422,27 +427,8 @@ emit_instruction(slang_emit_info *emitInfo, inst->Opcode = opcode; inst->BranchTarget = -1; /* invalid */ - if (dst) { - GLuint writemask; - switch (dst->Size) { - case 4: - writemask = WRITEMASK_XYZW; - break; - case 3: - writemask = WRITEMASK_XYZ; - break; - case 2: - writemask = WRITEMASK_XY; - break; - case 1: - writemask = WRITEMASK_X << GET_SWZ(dst->Swizzle, 0); - break; - default: - writemask = WRITEMASK_XYZW; - assert(0); - } - storage_to_dst_reg(&inst->DstReg, dst, writemask); - } + if (dst) + storage_to_dst_reg(&inst->DstReg, dst); if (src1) storage_to_src_reg(&inst->SrcReg[0], src1); @@ -1245,14 +1231,7 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) /* fixup the previous instruction (which stored the RHS result) */ assert(n->Children[0]->Store->Index >= 0); - /* use tighter writemask when possible */ -#if 0 - if (n->Writemask == WRITEMASK_XYZW) { - n->Writemask = inst->DstReg.WriteMask; - printf("Narrow writemask to 0x%x\n", n->Writemask); - } -#endif - storage_to_dst_reg(&inst->DstReg, n->Children[0]->Store, n->Writemask); + storage_to_dst_reg(&inst->DstReg, n->Children[0]->Store); return inst; } else @@ -1263,7 +1242,6 @@ emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) slang_ir_storage dstStore = *n->Children[0]->Store; slang_ir_storage srcStore = *n->Children[1]->Store; GLint size = srcStore.Size; - ASSERT(n->Children[0]->Writemask == WRITEMASK_XYZW); ASSERT(n->Children[1]->Store->Swizzle == SWIZZLE_NOOP); dstStore.Size = 4; srcStore.Size = 4; @@ -1718,10 +1696,7 @@ move_block(slang_emit_info *emitInfo, /* move matrix/struct etc (block of registers) */ slang_ir_storage dstStore = *dst; slang_ir_storage srcStore = *src; - //GLint size = srcStore.Size; - /*ASSERT(n->Children[0]->Writemask == WRITEMASK_XYZW); - ASSERT(n->Children[1]->Store->Swizzle == SWIZZLE_NOOP); - */ + dstStore.Size = 4; srcStore.Size = 4; while (size >= 4) { diff --git a/src/mesa/shader/slang/slang_ir.c b/src/mesa/shader/slang/slang_ir.c index 9d055bf3543..4fe3a2b85d5 100644 --- a/src/mesa/shader/slang/slang_ir.c +++ b/src/mesa/shader/slang/slang_ir.c @@ -243,22 +243,6 @@ _slang_free_ir_tree(slang_ir_node *n) } - -static const char * -writemask_string(GLuint writemask) -{ - static char s[6]; - GLuint i, j = 0; - s[j++] = '.'; - for (i = 0; i < 4; i++) { - if (writemask & (1 << i)) - s[j++] = "xyzw"[i]; - } - s[j] = 0; - return s; -} - - static const char * storage_string(const slang_ir_storage *st) { @@ -332,7 +316,7 @@ _slang_print_ir_tree(const slang_ir_node *n, int indent) _slang_print_ir_tree(n->Children[0], indent + 3); break; case IR_COPY: - printf("COPY (writemask = %s)\n", writemask_string(n->Writemask)); + printf("COPY\n"); _slang_print_ir_tree(n->Children[0], indent+3); _slang_print_ir_tree(n->Children[1], indent+3); break; diff --git a/src/mesa/shader/slang/slang_ir.h b/src/mesa/shader/slang/slang_ir.h index ab0353c28a5..a4552ae1442 100644 --- a/src/mesa/shader/slang/slang_ir.h +++ b/src/mesa/shader/slang/slang_ir.h @@ -173,7 +173,6 @@ typedef struct slang_ir_node_ /** special fields depending on Opcode: */ const char *Field; /**< If Opcode == IR_FIELD */ - GLuint Writemask; /**< If Opcode == IR_MOVE */ GLfloat Value[4]; /**< If Opcode == IR_FLOAT */ slang_variable *Var; /**< If Opcode == IR_VAR or IR_VAR_DECL */ struct slang_ir_node_ *List; /**< For various linked lists */ -- cgit v1.2.3