From e64030060292cdab97096ee3924ef18b1f71111f Mon Sep 17 00:00:00 2001 From: Brian Date: Thu, 4 Jan 2007 14:40:02 -0700 Subject: [PATCH] initial code to get texture sampling limping along --- .../slang/library/slang_common_builtin.gc | 7 +- .../slang/library/slang_common_builtin_gc.h | 175 +++++++++--------- src/mesa/shader/slang/slang_assemble.h | 1 + src/mesa/shader/slang/slang_codegen.c | 14 +- src/mesa/shader/slang/slang_emit.c | 78 +++++++- src/mesa/shader/slang/slang_ir.h | 7 +- 6 files changed, 177 insertions(+), 105 deletions(-) diff --git a/src/mesa/shader/slang/library/slang_common_builtin.gc b/src/mesa/shader/slang/library/slang_common_builtin.gc index 0e94979d920..44e059f5a0d 100644 --- a/src/mesa/shader/slang/library/slang_common_builtin.gc +++ b/src/mesa/shader/slang/library/slang_common_builtin.gc @@ -1629,10 +1629,9 @@ vec4 texture1DProj (sampler1D sampler, vec4 coord) { return texture1D (sampler, coord.s / coord.q); } -vec4 texture2D (sampler2D sampler, vec2 coord) { - vec4 texel; - __asm vec4_tex2d texel, sampler, coord, 0.0; - return texel; +vec4 texture2D(const sampler2D sampler, const vec2 coord) +{ + __asm vec4_tex2d __retVal, coord; // XXX sampler } vec4 texture2DProj (sampler2D sampler, vec3 coord) { 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 3442b062837..69c1960c737 100644 --- a/src/mesa/shader/slang/library/slang_common_builtin_gc.h +++ b/src/mesa/shader/slang/library/slang_common_builtin_gc.h @@ -679,92 +679,91 @@ 111,114,100,0,59,116,0,49,0,0,0,0,1,0,12,0,116,101,120,116,117,114,101,49,68,80,114,111,106,0,1,0, 0,16,115,97,109,112,108,101,114,0,0,1,0,0,12,99,111,111,114,100,0,0,0,1,8,58,116,101,120,116,117, 114,101,49,68,0,18,115,97,109,112,108,101,114,0,0,18,99,111,111,114,100,0,59,115,0,18,99,111,111, -114,100,0,59,113,0,49,0,0,0,0,1,0,12,0,116,101,120,116,117,114,101,50,68,0,1,0,0,17,115,97,109,112, 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slang_gen_context; diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index 3fca45ce121..3b96ec0a887 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -91,6 +91,9 @@ static slang_asm_info AsmInfo[] = { { "float_multiply", IR_MUL, 1, 2 }, { "float_divide", IR_DIV, 1, 2 }, { "float_power", IR_POW, 1, 2 }, + /* texture / sampler */ + { "vec4_tex2d", IR_TEX, 1, 1 }, + { "vec4_texb2d", IR_TEXB, 1, 3 }, /* unary op */ { "int_to_float", IR_I_TO_F, 1, 1 }, { "float_exp", IR_EXP, 1, 1 }, @@ -791,10 +794,15 @@ _slang_gen_asm(slang_assemble_ctx *A, slang_operation *oper, n0 = _slang_gen_operation(A, dest_oper); assert(n0->Var); assert(n0->Store); - free(n0); n->Store = n0->Store; n->Writemask = writemask; + + free(n0); + } + + if (info->Opcode == IR_TEX || info->Opcode == IR_TEXB) { + n->TexTarget = TEXTURE_2D_INDEX; } return n; @@ -1571,7 +1579,7 @@ _slang_codegen_function(slang_assemble_ctx * A, slang_function * fun) CurFunction = fun; if (!CurFunction->end_label) - CurFunction->end_label = slang_atom_pool_gen(A->atoms, "__endOfFunction_Main"); + CurFunction->end_label = slang_atom_pool_gen(A->atoms, "__endOfFunc_main_"); n = _slang_gen_operation(A, fun->body); @@ -1583,7 +1591,7 @@ _slang_codegen_function(slang_assemble_ctx * A, slang_function * fun) CurFunction = NULL; -#if 0 +#if 1 printf("************* New body for %s *****\n", (char*)fun->header.a_name); slang_print_function(fun, 1); diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c index 8b0999dfcc2..462cc71938f 100644 --- a/src/mesa/shader/slang/slang_emit.c +++ b/src/mesa/shader/slang/slang_emit.c @@ -92,6 +92,8 @@ static slang_ir_info IrInfo[] = { { IR_NOT, "IR_NOT", 0, 1, 1 }, { IR_VAR, "IR_VAR", 0, 0, 0 }, { IR_VAR_DECL, "IR_VAR_DECL", 0, 0, 0 }, + { IR_TEX, "IR_TEX", OPCODE_TEX, 4, 1 }, + { IR_TEXB, "IR_TEXB", OPCODE_TXB, 4, 2 }, { IR_FLOAT, "IR_FLOAT", 0, 0, 0 }, { IR_FIELD, "IR_FIELD", 0, 0, 0 }, { IR_NOP, NULL, OPCODE_NOP, 0, 0 } @@ -192,7 +194,10 @@ storage_string(const slang_ir_storage *st) sprintf(s, "%s[%d..%d]", files[st->File], st->Index, st->Index + st->Size - 1); #endif - sprintf(s, "%s[%d]", files[st->File], st->Index); + if (st->File == 1000) + sprintf(s, "sampler"); + else + sprintf(s, "%s[%d]", files[st->File], st->Index); return s; } @@ -247,8 +252,7 @@ _slang_sizeof_type_specifier(const slang_type_specifier *spec) case slang_spec_samplerCube: case slang_spec_sampler1DShadow: case slang_spec_sampler2DShadow: - abort(); - return 0; + return 1; /* special case */ case slang_spec_struct: return sizeof_struct(spec->_struct); case slang_spec_array: @@ -261,7 +265,6 @@ _slang_sizeof_type_specifier(const slang_type_specifier *spec) } - static GLuint sizeof_type(const slang_fully_specified_type *t) { @@ -269,6 +272,23 @@ sizeof_type(const slang_fully_specified_type *t) } +static GLboolean +is_sampler_type(const slang_fully_specified_type *t) +{ + switch (t->specifier.type) { + case slang_spec_sampler1D: + case slang_spec_sampler2D: + case slang_spec_sampler3D: + case slang_spec_samplerCube: + case slang_spec_sampler1DShadow: + case slang_spec_sampler2DShadow: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + #define IND 0 void slang_print_ir(const slang_ir_node *n, int indent) @@ -370,6 +390,15 @@ alloc_temporary(slang_gen_context *gc, GLint size) } +static GLint +alloc_sampler(slang_gen_context *gc) +{ + GLint sampler = gc->NumSamplers; + gc->NumSamplers++; + return sampler; +} + + static GLboolean is_temporary(const slang_gen_context *gc, const slang_ir_storage *st) { @@ -637,9 +666,6 @@ slang_alloc_temp_storage(slang_gen_context *gc, slang_ir_node *n, GLint size) * 2. Allocate storage for user-declared variables. * 3. Allocate intermediate/unnamed storage for complex expressions. * 4. other? - * - * If gc or prog is NULL, we may only be able to determine the Store->File - * but not an Index (register). */ void slang_resolve_storage(slang_gen_context *gc, slang_ir_node *n, @@ -666,7 +692,14 @@ slang_resolve_storage(slang_gen_context *gc, slang_ir_node *n, if (n->Opcode == IR_VAR_DECL) { /* storage declaration */ assert(n->Var); - if (n->Store->Index < 0) { /* XXX assert this? */ + if (is_sampler_type(&n->Var->type)) { + /* i.e. "uniform sampler2D tex;" */ +#define PROGRAM_SAMPLER 1000 + n->Store->File = PROGRAM_SAMPLER; + n->Store->Size = 1; /* never used */ + n->Store->Index = alloc_sampler(gc); + } + else if (n->Store->Index < 0) { /* XXX assert this? */ assert(gc); n->Store->File = PROGRAM_TEMPORARY; n->Store->Size = sizeof_type(&n->Var->type); @@ -994,6 +1027,32 @@ emit_jump(const char *target, struct gl_program *prog) } +static struct prog_instruction * +emit_tex(slang_gen_context *gc, slang_ir_node *n, struct gl_program *prog) +{ + struct gl_fragment_program *fProg = (struct gl_fragment_program *) prog; + struct prog_instruction *inst; + if (n->Opcode == IR_TEX) { + inst = new_instruction(prog, OPCODE_TEX); + } + else { + assert(n->Opcode == IR_TEXB); + inst = new_instruction(prog, OPCODE_TXB); + } + + storage_to_dst_reg(&inst->DstReg, n->Store, n->Writemask); + + storage_to_src_reg(&inst->SrcReg[0], n->Children[0]->Store, + n->Children[0]->Swizzle); + + inst->TexSrcTarget = n->TexTarget; + inst->TexSrcUnit = 0; /* XXX temp */ + + fProg->TexturesUsed[inst->TexSrcUnit] |= (1 << inst->TexSrcTarget); + + return inst; +} + static struct prog_instruction * emit(slang_gen_context *gc, slang_ir_node *n, struct gl_program *prog) @@ -1108,6 +1167,9 @@ emit(slang_gen_context *gc, slang_ir_node *n, struct gl_program *prog) case IR_SIN: case IR_COS: return emit_unop(gc, n, prog); + case IR_TEX: + case IR_TEXB: + return emit_tex(gc, n, prog); case IR_NEG: return emit_negation(gc, n, prog); case IR_LABEL: diff --git a/src/mesa/shader/slang/slang_ir.h b/src/mesa/shader/slang/slang_ir.h index 405d799315d..b43ff1db618 100644 --- a/src/mesa/shader/slang/slang_ir.h +++ b/src/mesa/shader/slang/slang_ir.h @@ -79,6 +79,8 @@ typedef enum IR_NOT, /* logical not */ IR_VAR, /* variable reference */ IR_VAR_DECL,/* var declaration */ + IR_TEX, /* texture lookup */ + IR_TEXB, /* texture lookup with LOD bias */ IR_FLOAT, IR_FIELD, IR_I_TO_F @@ -106,10 +108,11 @@ typedef struct slang_ir_node_ const char *Comment; const char *Target; GLuint Swizzle; - GLuint Writemask; /**< If Op == IR_MOVE */ - GLfloat Value[4]; /**< If Op == IR_FLOAT */ + GLuint Writemask; /**< If Opcode == IR_MOVE */ + GLfloat Value[4]; /**< If Opcode == IR_FLOAT */ slang_variable *Var; slang_ir_storage *Store; + GLuint TexTarget; /**< If Opcode == IR_TEX or IR_TEXB */ } slang_ir_node; -- 2.30.2