*/
-#include "brw_vs.h"
-
+#include "brw_vec4_vs.h"
+#include "common/gen_debug.h"
namespace brw {
void
vec4_vs_visitor::emit_prolog()
{
- dst_reg sign_recovery_shift;
- dst_reg normalize_factor;
- dst_reg es3_normalize_factor;
-
- for (int i = 0; i < VERT_ATTRIB_MAX; i++) {
- if (vs_prog_data->inputs_read & BITFIELD64_BIT(i)) {
- uint8_t wa_flags = key->gl_attrib_wa_flags[i];
- dst_reg reg(ATTR, i);
- dst_reg reg_d = reg;
- reg_d.type = BRW_REGISTER_TYPE_D;
- dst_reg reg_ud = reg;
- reg_ud.type = BRW_REGISTER_TYPE_UD;
-
- /* Do GL_FIXED rescaling for GLES2.0. Our GL_FIXED attributes
- * come in as floating point conversions of the integer values.
- */
- if (wa_flags & BRW_ATTRIB_WA_COMPONENT_MASK) {
- dst_reg dst = reg;
- dst.type = brw_type_for_base_type(glsl_type::vec4_type);
- dst.writemask = (1 << (wa_flags & BRW_ATTRIB_WA_COMPONENT_MASK)) - 1;
- emit(MUL(dst, src_reg(dst), brw_imm_f(1.0f / 65536.0f)));
- }
-
- /* Do sign recovery for 2101010 formats if required. */
- if (wa_flags & BRW_ATTRIB_WA_SIGN) {
- if (sign_recovery_shift.file == BAD_FILE) {
- /* shift constant: <22,22,22,30> */
- sign_recovery_shift = dst_reg(this, glsl_type::uvec4_type);
- emit(MOV(writemask(sign_recovery_shift, WRITEMASK_XYZ), brw_imm_ud(22u)));
- emit(MOV(writemask(sign_recovery_shift, WRITEMASK_W), brw_imm_ud(30u)));
- }
-
- emit(SHL(reg_ud, src_reg(reg_ud), src_reg(sign_recovery_shift)));
- emit(ASR(reg_d, src_reg(reg_d), src_reg(sign_recovery_shift)));
- }
-
- /* Apply BGRA swizzle if required. */
- if (wa_flags & BRW_ATTRIB_WA_BGRA) {
- src_reg temp = src_reg(reg);
- temp.swizzle = BRW_SWIZZLE4(2,1,0,3);
- emit(MOV(reg, temp));
- }
-
- if (wa_flags & BRW_ATTRIB_WA_NORMALIZE) {
- /* ES 3.0 has different rules for converting signed normalized
- * fixed-point numbers than desktop GL.
- */
- if ((wa_flags & BRW_ATTRIB_WA_SIGN) && !use_legacy_snorm_formula) {
- /* According to equation 2.2 of the ES 3.0 specification,
- * signed normalization conversion is done by:
- *
- * f = c / (2^(b-1)-1)
- */
- if (es3_normalize_factor.file == BAD_FILE) {
- /* mul constant: 1 / (2^(b-1) - 1) */
- es3_normalize_factor = dst_reg(this, glsl_type::vec4_type);
- emit(MOV(writemask(es3_normalize_factor, WRITEMASK_XYZ),
- brw_imm_f(1.0f / ((1<<9) - 1))));
- emit(MOV(writemask(es3_normalize_factor, WRITEMASK_W),
- brw_imm_f(1.0f / ((1<<1) - 1))));
- }
-
- dst_reg dst = reg;
- dst.type = brw_type_for_base_type(glsl_type::vec4_type);
- emit(MOV(dst, src_reg(reg_d)));
- emit(MUL(dst, src_reg(dst), src_reg(es3_normalize_factor)));
- emit_minmax(BRW_CONDITIONAL_GE, dst, src_reg(dst), brw_imm_f(-1.0f));
- } else {
- /* The following equations are from the OpenGL 3.2 specification:
- *
- * 2.1 unsigned normalization
- * f = c/(2^n-1)
- *
- * 2.2 signed normalization
- * f = (2c+1)/(2^n-1)
- *
- * Both of these share a common divisor, which is represented by
- * "normalize_factor" in the code below.
- */
- if (normalize_factor.file == BAD_FILE) {
- /* 1 / (2^b - 1) for b=<10,10,10,2> */
- normalize_factor = dst_reg(this, glsl_type::vec4_type);
- emit(MOV(writemask(normalize_factor, WRITEMASK_XYZ),
- brw_imm_f(1.0f / ((1<<10) - 1))));
- emit(MOV(writemask(normalize_factor, WRITEMASK_W),
- brw_imm_f(1.0f / ((1<<2) - 1))));
- }
-
- dst_reg dst = reg;
- dst.type = brw_type_for_base_type(glsl_type::vec4_type);
- emit(MOV(dst, src_reg((wa_flags & BRW_ATTRIB_WA_SIGN) ? reg_d : reg_ud)));
-
- /* For signed normalization, we want the numerator to be 2c+1. */
- if (wa_flags & BRW_ATTRIB_WA_SIGN) {
- emit(MUL(dst, src_reg(dst), brw_imm_f(2.0f)));
- emit(ADD(dst, src_reg(dst), brw_imm_f(1.0f)));
- }
-
- emit(MUL(dst, src_reg(dst), src_reg(normalize_factor)));
- }
- }
-
- if (wa_flags & BRW_ATTRIB_WA_SCALE) {
- dst_reg dst = reg;
- dst.type = brw_type_for_base_type(glsl_type::vec4_type);
- emit(MOV(dst, src_reg((wa_flags & BRW_ATTRIB_WA_SIGN) ? reg_d : reg_ud)));
- }
- }
- }
}
dst_reg *
-vec4_vs_visitor::make_reg_for_system_value(int location,
- const glsl_type *type)
+vec4_vs_visitor::make_reg_for_system_value(int location)
{
/* VertexID is stored by the VF as the last vertex element, but
* we don't represent it with a flag in inputs_read, so we call
vec4_vs_visitor::emit_urb_slot(dst_reg reg, int varying)
{
reg.type = BRW_REGISTER_TYPE_F;
- output_reg[varying].type = reg.type;
+ output_reg[varying][0].type = reg.type;
switch (varying) {
case VARYING_SLOT_COL0:
* and we only support GS in core profile. So, this must be a vertex
* shader.
*/
- vec4_instruction *inst = emit_generic_urb_slot(reg, varying);
+ vec4_instruction *inst = emit_generic_urb_slot(reg, varying, 0);
if (inst && key->clamp_vertex_color)
inst->saturate = true;
break;
++i) {
reg.writemask = 1 << i;
emit(DP4(reg,
- src_reg(output_reg[clip_vertex]),
+ src_reg(output_reg[clip_vertex][0]),
src_reg(this->userplane[i + offset])));
}
}
if (key->nr_userclip_plane_consts > 0) {
current_annotation = "user clip distances";
- output_reg[VARYING_SLOT_CLIP_DIST0] = dst_reg(this, glsl_type::vec4_type);
- output_reg[VARYING_SLOT_CLIP_DIST1] = dst_reg(this, glsl_type::vec4_type);
+ output_reg[VARYING_SLOT_CLIP_DIST0][0] =
+ dst_reg(this, glsl_type::vec4_type);
+ output_reg[VARYING_SLOT_CLIP_DIST1][0] =
+ dst_reg(this, glsl_type::vec4_type);
+ output_num_components[VARYING_SLOT_CLIP_DIST0][0] = 4;
+ output_num_components[VARYING_SLOT_CLIP_DIST1][0] = 4;
- emit_clip_distances(output_reg[VARYING_SLOT_CLIP_DIST0], 0);
- emit_clip_distances(output_reg[VARYING_SLOT_CLIP_DIST1], 4);
+ emit_clip_distances(output_reg[VARYING_SLOT_CLIP_DIST0][0], 0);
+ emit_clip_distances(output_reg[VARYING_SLOT_CLIP_DIST1][0], 4);
}
/* For VS, we always end the thread by emitting a single vertex.
projects / mesa.git / blobdiff