From 69c8cec54b01ed522bf10baf20da70304bac701a Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 28 Jan 2013 07:55:57 +0100 Subject: mesa mkfontscale pixman git update 28 jan 2013 mesa: 87592cff57feef29565150b9203e220b50623f30 mkfontscale: b3af8de8d25128f565c2ed2f7c63b6e4099eb84e pixman: 65fc1adb6545737058e938105ae948a3607c277c --- mesalib/src/glsl/lower_packed_varyings.cpp | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) (limited to 'mesalib/src/glsl/lower_packed_varyings.cpp') diff --git a/mesalib/src/glsl/lower_packed_varyings.cpp b/mesalib/src/glsl/lower_packed_varyings.cpp index 9e7f274b7..8a40f5e72 100644 --- a/mesalib/src/glsl/lower_packed_varyings.cpp +++ b/mesalib/src/glsl/lower_packed_varyings.cpp @@ -70,6 +70,10 @@ * This lowering pass also packs flat floats, ints, and uints together, by * using ivec4 as the base type of flat "varyings", and using appropriate * casts to convert floats and uints into ints. + * + * This lowering pass also handles varyings whose type is a struct or an array + * of struct. Structs are packed in order and with no gaps, so there may be a + * performance penalty due to structure elements being double-parked. */ #include "glsl_symbol_table.h" @@ -135,8 +139,8 @@ private: ir_variable **packed_varyings; /** - * Type of varying which is being lowered in this pass (either ir_var_in or - * ir_var_out). + * Type of varying which is being lowered in this pass (either + * ir_var_shader_in or ir_var_shader_out). */ const ir_variable_mode mode; @@ -274,10 +278,20 @@ lower_packed_varyings_visitor::lower_rvalue(ir_rvalue *rvalue, ir_variable *unpacked_var, const char *name) { - /* FINISHME: Support for "varying" records in GLSL 1.50. */ - assert(!rvalue->type->is_record()); - - if (rvalue->type->is_array()) { + if (rvalue->type->is_record()) { + for (unsigned i = 0; i < rvalue->type->length; i++) { + if (i != 0) + rvalue = rvalue->clone(this->mem_ctx, NULL); + const char *field_name = rvalue->type->fields.structure[i].name; + ir_dereference_record *dereference_record = new(this->mem_ctx) + ir_dereference_record(rvalue, field_name); + char *deref_name + = ralloc_asprintf(this->mem_ctx, "%s.%s", name, field_name); + fine_location = this->lower_rvalue(dereference_record, fine_location, + unpacked_var, deref_name); + } + return fine_location; + } else if (rvalue->type->is_array()) { /* Arrays are packed/unpacked by considering each array element in * sequence. */ @@ -336,7 +350,7 @@ lower_packed_varyings_visitor::lower_rvalue(ir_rvalue *rvalue, unpacked_var, name)); ir_swizzle *swizzle = new(this->mem_ctx) ir_swizzle(packed_deref, swizzle_values, components); - if (this->mode == ir_var_out) { + if (this->mode == ir_var_shader_out) { ir_assignment *assignment = this->bitwise_assign_pack(swizzle, rvalue); this->main_instructions->push_tail(assignment); -- cgit v1.2.3