diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/shader/slang/slang_codegen.c | 498 |
1 files changed, 256 insertions, 242 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index df361fbb3db..239f6a5e759 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -258,7 +258,7 @@ _slang_sizeof_type_specifier(const slang_type_specifier *spec) * 4. other? */ static void -slang_resolve_storage(slang_gen_context *gc, slang_ir_node *n, +slang_allocate_storage(slang_gen_context *gc, slang_ir_node *n, struct gl_program *prog) { assert(gc); @@ -337,6 +337,259 @@ slang_resolve_storage(slang_gen_context *gc, slang_ir_node *n, } +/** + * Return the TEXTURE_*_INDEX value that corresponds to a sampler type, + * or -1 if the type is not a sampler. + */ +static GLint +sampler_to_texture_index(const slang_type_specifier_type type) +{ + switch (type) { + case slang_spec_sampler1D: + return TEXTURE_1D_INDEX; + case slang_spec_sampler2D: + return TEXTURE_2D_INDEX; + case slang_spec_sampler3D: + return TEXTURE_3D_INDEX; + case slang_spec_samplerCube: + return TEXTURE_CUBE_INDEX; + case slang_spec_sampler1DShadow: + return TEXTURE_1D_INDEX; /* XXX fix */ + case slang_spec_sampler2DShadow: + return TEXTURE_2D_INDEX; /* XXX fix */ + default: + return -1; + } +} + + +/** + * Return the VERT_ATTRIB_* or FRAG_ATTRIB_* value that corresponds to + * a vertex or fragment program input variable. Return -1 if the input + * name is invalid. + * XXX return size too + */ +static GLint +_slang_input_index(const char *name, GLenum target) +{ + struct input_info { + const char *Name; + GLuint Attrib; + }; + static const struct input_info vertInputs[] = { + { "gl_Vertex", VERT_ATTRIB_POS }, + { "gl_Normal", VERT_ATTRIB_NORMAL }, + { "gl_Color", VERT_ATTRIB_COLOR0 }, + { "gl_SecondaryColor", VERT_ATTRIB_COLOR1 }, + { "gl_FogCoord", VERT_ATTRIB_FOG }, + { "gl_MultiTexCoord0", VERT_ATTRIB_TEX0 }, + { "gl_MultiTexCoord1", VERT_ATTRIB_TEX1 }, + { "gl_MultiTexCoord2", VERT_ATTRIB_TEX2 }, + { "gl_MultiTexCoord3", VERT_ATTRIB_TEX3 }, + { "gl_MultiTexCoord4", VERT_ATTRIB_TEX4 }, + { "gl_MultiTexCoord5", VERT_ATTRIB_TEX5 }, + { "gl_MultiTexCoord6", VERT_ATTRIB_TEX6 }, + { "gl_MultiTexCoord7", VERT_ATTRIB_TEX7 }, + { NULL, 0 } + }; + static const struct input_info fragInputs[] = { + { "gl_FragCoord", FRAG_ATTRIB_WPOS }, + { "gl_Color", FRAG_ATTRIB_COL0 }, + { "gl_SecondaryColor", FRAG_ATTRIB_COL1 }, + { "gl_FogFragCoord", FRAG_ATTRIB_FOGC }, + { "gl_TexCoord", FRAG_ATTRIB_TEX0 }, + { NULL, 0 } + }; + GLuint i; + const struct input_info *inputs + = (target == GL_VERTEX_PROGRAM_ARB) ? vertInputs : fragInputs; + + for (i = 0; inputs[i].Name; i++) { + if (strcmp(inputs[i].Name, name) == 0) { + /* found */ + return inputs[i].Attrib; + } + } + return -1; +} + + +/** + * Return the VERT_RESULT_* or FRAG_RESULT_* value that corresponds to + * a vertex or fragment program output variable. Return -1 for an invalid + * output name. + */ +static GLint +_slang_output_index(const char *name, GLenum target) +{ + struct output_info { + const char *Name; + GLuint Attrib; + }; + static const struct output_info vertOutputs[] = { + { "gl_Position", VERT_RESULT_HPOS }, + { "gl_FrontColor", VERT_RESULT_COL0 }, + { "gl_BackColor", VERT_RESULT_BFC0 }, + { "gl_FrontSecondaryColor", VERT_RESULT_COL1 }, + { "gl_BackSecondaryColor", VERT_RESULT_BFC1 }, + { "gl_TexCoord", VERT_RESULT_TEX0 }, /* XXX indexed */ + { "gl_FogFragCoord", VERT_RESULT_FOGC }, + { "gl_PointSize", VERT_RESULT_PSIZ }, + { NULL, 0 } + }; + static const struct output_info fragOutputs[] = { + { "gl_FragColor", FRAG_RESULT_COLR }, + { "gl_FragDepth", FRAG_RESULT_DEPR }, + { NULL, 0 } + }; + GLuint i; + const struct output_info *outputs + = (target == GL_VERTEX_PROGRAM_ARB) ? vertOutputs : fragOutputs; + + for (i = 0; outputs[i].Name; i++) { + if (strcmp(outputs[i].Name, name) == 0) { + /* found */ + return outputs[i].Attrib; + } + } + return -1; +} + + +/** + * Called by compiler when a global variable has been parsed/compiled. + * Here we examine the variable's type to determine what kind of register + * storage will be used. + * + * A uniform such as "gl_Position" will become the register specification + * (PROGRAM_OUTPUT, VERT_RESULT_HPOS). Or, uniform "gl_FogFragCoord" + * will be (PROGRAM_INPUT, FRAG_ATTRIB_FOGC). + * + * Samplers are interesting. For "uniform sampler2D tex;" we'll specify + * (PROGRAM_SAMPLER, index) where index is resolved at link-time to an + * actual texture unit (as specified by the user calling glUniform1i()). + */ +void +_slang_codegen_global_variable(slang_variable *var, struct gl_program *prog, + slang_unit_type type) +{ + const char *varName = (char *) var->a_name; + GLint texIndex; + slang_ir_storage *store = NULL; + + texIndex = sampler_to_texture_index(var->type.specifier.type); + + if (texIndex != -1) { + /* Texture sampler: + * store->File = PROGRAM_SAMPLER + * store->Index = sampler uniform location + * store->Size = texture type index (1D, 2D, 3D, cube, etc) + */ + GLint samplerUniform = _mesa_add_sampler(prog->Parameters, varName); + store = _slang_new_ir_storage(PROGRAM_SAMPLER, samplerUniform, texIndex); + printf("SAMPLER "); + } + else if (var->type.qualifier == slang_qual_uniform) { + /* Uniform variable */ + const GLint size = _slang_sizeof_type_specifier(&var->type.specifier); + if (prog) { + /* user-defined uniform */ + GLint uniformLoc = _mesa_add_uniform(prog->Parameters, varName, size); + store = _slang_new_ir_storage(PROGRAM_UNIFORM, uniformLoc, size); + } + else { + /* pre-defined uniform, like gl_ModelviewMatrix */ + /* We know it's a uniform, but don't allocate storage unless + * it's really used. + */ + + store = _slang_new_ir_storage(PROGRAM_STATE_VAR, -1, size); + + } + printf("UNIFORM "); + } + else if (var->type.qualifier == slang_qual_varying) { + const GLint size = 4; /* XXX fix */ + if (prog) { + /* user-defined varying */ + GLint varyingLoc = _mesa_add_varying(prog->Varying, varName, size); + store = _slang_new_ir_storage(PROGRAM_VARYING, varyingLoc, size); + } + else { + /* pre-defined varying, like gl_Color or gl_TexCoord */ + if (type == slang_unit_fragment_builtin) { + GLint index = _slang_input_index(varName, GL_FRAGMENT_PROGRAM_ARB); + assert(index >= 0); + store = _slang_new_ir_storage(PROGRAM_INPUT, index, size); + assert(index < FRAG_ATTRIB_MAX); + } + else { + GLint index = _slang_output_index(varName, GL_VERTEX_PROGRAM_ARB); + assert(index >= 0); + assert(type == slang_unit_vertex_builtin); + store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size); + assert(index < VERT_RESULT_MAX); + } + printf("V/F "); + } + printf("VARYING "); + } + else if (var->type.qualifier == slang_qual_const) { + if (prog) { + abort(); + } + else { + /* pre-defined global constant, like gl_MaxLights */ + GLint size = -1; + store = _slang_new_ir_storage(PROGRAM_CONSTANT, -1, size); + } + printf("CONST "); + } + else if (var->type.qualifier == slang_qual_attribute) { + /* Vertex attribute */ + GLint index = _slang_input_index(varName, GL_VERTEX_PROGRAM_ARB); + GLint size = 4; /* XXX? */ + assert(index >= 0); + store = _slang_new_ir_storage(PROGRAM_INPUT, index, size); + printf("ATTRIB "); + } + else if (var->type.qualifier == slang_qual_fixedinput) { + GLint index = _slang_input_index(varName, GL_FRAGMENT_PROGRAM_ARB); + GLint size = 4; /* XXX? */ + store = _slang_new_ir_storage(PROGRAM_INPUT, index, size); + printf("INPUT "); + } + else if (var->type.qualifier == slang_qual_fixedoutput) { + if (type == slang_unit_vertex_builtin) { + GLint index = _slang_output_index(varName, GL_VERTEX_PROGRAM_ARB); + GLint size = 4; /* XXX? */ + store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size); + } + else { + assert(type == slang_unit_fragment_builtin); + GLint index = _slang_output_index(varName, GL_FRAGMENT_PROGRAM_ARB); + GLint size = 4; /* XXX? */ + store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size); + } + printf("OUTPUT "); + } + else { + printf("other "); + } + printf("GLOBAL VAR %s idx %d\n", (char*) var->a_name, store?store->Index:-2); + + assert(!var->aux); +#if 1 + var->aux = store; +#endif + /** + XXX allocate variable storage (aux), at least the register file. + */ +} + + +/**********************************************************************/ + /** * Map "_asm foo" to IR_FOO, etc. @@ -479,7 +732,7 @@ new_var(slang_assemble_ctx *A, slang_operation *oper, oper->var = v; n->Swizzle = swizzle; n->Var = v; - slang_resolve_storage(A->codegen, n, A->program); + slang_allocate_storage(A->codegen, n, A->program); return n; } @@ -1408,7 +1661,7 @@ _slang_gen_declaration(slang_assemble_ctx *A, slang_operation *oper) varDecl->Var = v; v->declared = GL_TRUE; - slang_resolve_storage(A->codegen, varDecl, A->program); + slang_allocate_storage(A->codegen, varDecl, A->program); if (oper->num_children > 0) { /* child is initializer */ @@ -1888,242 +2141,3 @@ _slang_codegen_function(slang_assemble_ctx * A, slang_function * fun) return n; } - -static GLint -sampler_to_texture_index(const slang_type_specifier_type type) -{ - switch (type) { - case slang_spec_sampler1D: - return TEXTURE_1D_INDEX; - case slang_spec_sampler2D: - return TEXTURE_2D_INDEX; - case slang_spec_sampler3D: - return TEXTURE_3D_INDEX; - case slang_spec_samplerCube: - return TEXTURE_CUBE_INDEX; - case slang_spec_sampler1DShadow: - return TEXTURE_1D_INDEX; /* XXX fix */ - case slang_spec_sampler2DShadow: - return TEXTURE_2D_INDEX; /* XXX fix */ - default: - return -1; - } -} - - -/** - * XXX return size too - */ -static GLint -_slang_input_index(const char *name, GLenum target) -{ - struct input_info { - const char *Name; - GLuint Attrib; - }; - static const struct input_info vertInputs[] = { - { "gl_Vertex", VERT_ATTRIB_POS }, - { "gl_Normal", VERT_ATTRIB_NORMAL }, - { "gl_Color", VERT_ATTRIB_COLOR0 }, - { "gl_SecondaryColor", VERT_ATTRIB_COLOR1 }, - { "gl_FogCoord", VERT_ATTRIB_FOG }, - { "gl_MultiTexCoord0", VERT_ATTRIB_TEX0 }, - { "gl_MultiTexCoord1", VERT_ATTRIB_TEX1 }, - { "gl_MultiTexCoord2", VERT_ATTRIB_TEX2 }, - { "gl_MultiTexCoord3", VERT_ATTRIB_TEX3 }, - { "gl_MultiTexCoord4", VERT_ATTRIB_TEX4 }, - { "gl_MultiTexCoord5", VERT_ATTRIB_TEX5 }, - { "gl_MultiTexCoord6", VERT_ATTRIB_TEX6 }, - { "gl_MultiTexCoord7", VERT_ATTRIB_TEX7 }, - { NULL, 0 } - }; - static const struct input_info fragInputs[] = { - { "gl_FragCoord", FRAG_ATTRIB_WPOS }, - { "gl_Color", FRAG_ATTRIB_COL0 }, - { "gl_SecondaryColor", FRAG_ATTRIB_COL1 }, - { "gl_FogFragCoord", FRAG_ATTRIB_FOGC }, - { "gl_TexCoord", FRAG_ATTRIB_TEX0 }, - { NULL, 0 } - }; - GLuint i; - const struct input_info *inputs - = (target == GL_VERTEX_PROGRAM_ARB) ? vertInputs : fragInputs; - - for (i = 0; inputs[i].Name; i++) { - if (strcmp(inputs[i].Name, name) == 0) { - /* found */ - return inputs[i].Attrib; - } - } - return -1; -} - - - -static GLint -_slang_output_index(const char *name, GLenum target) -{ - struct output_info { - const char *Name; - GLuint Attrib; - }; - static const struct output_info vertOutputs[] = { - { "gl_Position", VERT_RESULT_HPOS }, - { "gl_FrontColor", VERT_RESULT_COL0 }, - { "gl_BackColor", VERT_RESULT_BFC0 }, - { "gl_FrontSecondaryColor", VERT_RESULT_COL1 }, - { "gl_BackSecondaryColor", VERT_RESULT_BFC1 }, - { "gl_TexCoord", VERT_RESULT_TEX0 }, /* XXX indexed */ - { "gl_FogFragCoord", VERT_RESULT_FOGC }, - { "gl_PointSize", VERT_RESULT_PSIZ }, - { NULL, 0 } - }; - static const struct output_info fragOutputs[] = { - { "gl_FragColor", FRAG_RESULT_COLR }, - { "gl_FragDepth", FRAG_RESULT_DEPR }, - { NULL, 0 } - }; - GLuint i; - const struct output_info *outputs - = (target == GL_VERTEX_PROGRAM_ARB) ? vertOutputs : fragOutputs; - - for (i = 0; outputs[i].Name; i++) { - if (strcmp(outputs[i].Name, name) == 0) { - /* found */ - return outputs[i].Attrib; - } - } - return -1; -} - - -/** - * Called by compiler when a global variable has been parsed/compiled. - * Here we examine the variable's type to determine what kind of register - * storage will be used. - * - * A uniform such as "gl_Position" will become the register specification - * (PROGRAM_OUTPUT, VERT_RESULT_HPOS). Or, uniform "gl_FogFragCoord" - * will be (PROGRAM_INPUT, FRAG_ATTRIB_FOGC). - * - * Samplers are interesting. For "uniform sampler2D tex;" we'll specify - * (PROGRAM_SAMPLER, index) where index is resolved at link-time to an - * actual texture unit (as specified by the user calling glUniform1i()). - */ -void -_slang_codegen_global_variable(slang_variable *var, struct gl_program *prog, - slang_unit_type type) -{ - const char *varName = (char *) var->a_name; - GLint texIndex; - slang_ir_storage *store = NULL; - - texIndex = sampler_to_texture_index(var->type.specifier.type); - - if (texIndex != -1) { - /* Texture sampler: - * store->File = PROGRAM_SAMPLER - * store->Index = sampler uniform location - * store->Size = texture type index (1D, 2D, 3D, cube, etc) - */ - GLint samplerUniform = _mesa_add_sampler(prog->Parameters, varName); - store = _slang_new_ir_storage(PROGRAM_SAMPLER, samplerUniform, texIndex); - printf("SAMPLER "); - } - else if (var->type.qualifier == slang_qual_uniform) { - /* Uniform variable */ - const GLint size = _slang_sizeof_type_specifier(&var->type.specifier); - if (prog) { - /* user-defined uniform */ - GLint uniformLoc = _mesa_add_uniform(prog->Parameters, varName, size); - store = _slang_new_ir_storage(PROGRAM_UNIFORM, uniformLoc, size); - } - else { - /* pre-defined uniform, like gl_ModelviewMatrix */ - /* We know it's a uniform, but don't allocate storage unless - * it's really used. - */ - - store = _slang_new_ir_storage(PROGRAM_STATE_VAR, -1, size); - - } - printf("UNIFORM "); - } - else if (var->type.qualifier == slang_qual_varying) { - const GLint size = 4; /* XXX fix */ - if (prog) { - /* user-defined varying */ - GLint varyingLoc = _mesa_add_varying(prog->Varying, varName, size); - store = _slang_new_ir_storage(PROGRAM_VARYING, varyingLoc, size); - } - else { - /* pre-defined varying, like gl_Color or gl_TexCoord */ - if (type == slang_unit_fragment_builtin) { - GLint index = _slang_input_index(varName, GL_FRAGMENT_PROGRAM_ARB); - assert(index >= 0); - store = _slang_new_ir_storage(PROGRAM_INPUT, index, size); - assert(index < FRAG_ATTRIB_MAX); - } - else { - GLint index = _slang_output_index(varName, GL_VERTEX_PROGRAM_ARB); - assert(index >= 0); - assert(type == slang_unit_vertex_builtin); - store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size); - assert(index < VERT_RESULT_MAX); - } - printf("V/F "); - } - printf("VARYING "); - } - else if (var->type.qualifier == slang_qual_const) { - if (prog) { - abort(); - } - else { - /* pre-defined global constant, like gl_MaxLights */ - GLint size = -1; - store = _slang_new_ir_storage(PROGRAM_CONSTANT, -1, size); - } - printf("CONST "); - } - else if (var->type.qualifier == slang_qual_attribute) { - /* Vertex attribute */ - GLint index = _slang_input_index(varName, GL_VERTEX_PROGRAM_ARB); - GLint size = 4; /* XXX? */ - assert(index >= 0); - store = _slang_new_ir_storage(PROGRAM_INPUT, index, size); - printf("ATTRIB "); - } - else if (var->type.qualifier == slang_qual_fixedinput) { - GLint index = _slang_input_index(varName, GL_FRAGMENT_PROGRAM_ARB); - GLint size = 4; /* XXX? */ - store = _slang_new_ir_storage(PROGRAM_INPUT, index, size); - printf("INPUT "); - } - else if (var->type.qualifier == slang_qual_fixedoutput) { - if (type == slang_unit_vertex_builtin) { - GLint index = _slang_output_index(varName, GL_VERTEX_PROGRAM_ARB); - GLint size = 4; /* XXX? */ - store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size); - } - else { - assert(type == slang_unit_fragment_builtin); - GLint index = _slang_output_index(varName, GL_FRAGMENT_PROGRAM_ARB); - GLint size = 4; /* XXX? */ - store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size); - } - printf("OUTPUT "); - } - else { - printf("other "); - } - printf("GLOBAL VAR %s idx %d\n", (char*) var->a_name, store?store->Index:-2); - - assert(!var->aux); -#if 1 - var->aux = store; -#endif - /** - XXX allocate variable storage (aux), at least the register file. - */ -} |