return reg;
}
+/* Return the SrcReg index of the channels that can be immediate float operands
+ * instead of usage of PROGRAM_CONSTANT values through push/pull.
+ */
+GLboolean
+brw_wm_arg_can_be_immediate(enum prog_opcode opcode, int arg)
+{
+ int opcode_array[] = {
+ [OPCODE_ADD] = 2,
+ [OPCODE_CMP] = 3,
+ [OPCODE_DP3] = 2,
+ [OPCODE_DP4] = 2,
+ [OPCODE_DPH] = 2,
+ [OPCODE_MAX] = 2,
+ [OPCODE_MIN] = 2,
+ [OPCODE_MOV] = 1,
+ [OPCODE_MUL] = 2,
+ [OPCODE_SEQ] = 2,
+ [OPCODE_SGE] = 2,
+ [OPCODE_SGT] = 2,
+ [OPCODE_SLE] = 2,
+ [OPCODE_SLT] = 2,
+ [OPCODE_SNE] = 2,
+ [OPCODE_XPD] = 2,
+ };
+
+ /* These opcodes get broken down in a way that allow two
+ * args to be immediates.
+ */
+ if (opcode == OPCODE_MAD || opcode == OPCODE_LRP) {
+ if (arg == 1 || arg == 2)
+ return GL_TRUE;
+ }
+
+ if (opcode > ARRAY_SIZE(opcode_array))
+ return GL_FALSE;
+
+ return arg == opcode_array[opcode] - 1;
+}
-/* Payload R0:
+/**
+ * Computes the screen-space x,y position of the pixels.
+ *
+ * This will be used by emit_delta_xy() or emit_wpos_xy() for
+ * interpolation of attributes..
+ *
+ * Payload R0:
*
* R0.0 -- pixel mask, one bit for each of 4 pixels in 4 tiles,
* corresponding to each of the 16 execution channels.
* R1.7 -- ?
* R1.8 -- ?
*/
-
void emit_pixel_xy(struct brw_wm_compile *c,
const struct brw_reg *dst,
GLuint mask)
brw_pop_insn_state(p);
}
-
+/**
+ * Computes the screen-space x,y distance of the pixels from the start
+ * vertex.
+ *
+ * This will be used in linterp or pinterp with the start vertex value
+ * and the Cx, Cy, and C0 coefficients passed in from the setup engine
+ * to produce interpolated attribute values.
+ */
void emit_delta_xy(struct brw_compile *p,
const struct brw_reg *dst,
GLuint mask,
{
struct brw_reg r1 = brw_vec1_grf(1, 0);
- /* Calc delta X,Y by subtracting origin in r1 from the pixel
- * centers.
- */
- if (mask & WRITEMASK_X) {
- brw_ADD(p,
- dst[0],
- retype(arg0[0], BRW_REGISTER_TYPE_UW),
- negate(r1));
- }
+ if (mask == 0)
+ return;
- if (mask & WRITEMASK_Y) {
- brw_ADD(p,
- dst[1],
- retype(arg0[1], BRW_REGISTER_TYPE_UW),
- negate(suboffset(r1,1)));
+ assert(mask == WRITEMASK_XY);
- }
+ /* Calc delta X,Y by subtracting origin in r1 from the pixel
+ * centers produced by emit_pixel_xy().
+ */
+ brw_ADD(p,
+ dst[0],
+ retype(arg0[0], BRW_REGISTER_TYPE_UW),
+ negate(r1));
+ brw_ADD(p,
+ dst[1],
+ retype(arg0[1], BRW_REGISTER_TYPE_UW),
+ negate(suboffset(r1,1)));
}
+/**
+ * Computes the pixel offset from the window origin for gl_FragCoord().
+ */
void emit_wpos_xy(struct brw_wm_compile *c,
const struct brw_reg *dst,
GLuint mask,
{
struct brw_compile *p = &c->func;
- /* Calculate the pixel offset from window bottom left into destination
- * X and Y channels.
- */
if (mask & WRITEMASK_X) {
if (c->fp->program.PixelCenterInteger) {
/* X' = X */
for (i = 0; i < 4; i++) {
if (mask & (1<<i)) {
- brw_set_saturate(p, (mask & SATURATE) ? 1 : 0);
- brw_MOV(p, dst[i], arg2[i]);
- brw_set_saturate(p, 0);
-
brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_L, arg0[i], brw_imm_f(0));
brw_set_saturate(p, (mask & SATURATE) ? 1 : 0);
- brw_MOV(p, dst[i], arg1[i]);
+ brw_SEL(p, dst[i], arg1[i], arg2[i]);
brw_set_saturate(p, 0);
brw_set_predicate_control_flag_value(p, 0xff);
}
}
/* Pre-Ironlake, the 8-wide sampler always took u,v,r. */
- if (!intel->is_ironlake && c->dispatch_width == 8)
+ if (intel->gen < 5 && c->dispatch_width == 8)
nr_texcoords = 3;
/* For shadow comparisons, we have to supply u,v,r. */
/* Fill in the shadow comparison reference value. */
if (shadow) {
- if (intel->is_ironlake) {
+ if (intel->gen == 5) {
/* Fill in the cube map array index value. */
brw_MOV(p, brw_message_reg(cur_mrf), brw_imm_f(0));
cur_mrf += mrf_per_channel;
cur_mrf += mrf_per_channel;
}
- if (intel->is_ironlake) {
+ if (intel->gen == 5) {
if (shadow)
- msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_COMPARE_IGDNG;
+ msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_COMPARE_GEN5;
else
- msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_IGDNG;
+ msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_GEN5;
} else {
/* Note that G45 and older determines shadow compare and dispatch width
* from message length for most messages.
* undefined, and trust the execution mask to keep the undefined pixels
* from mattering.
*/
- if (c->dispatch_width == 16 || !intel->is_ironlake) {
- if (intel->is_ironlake)
- msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_BIAS_IGDNG;
+ if (c->dispatch_width == 16 || intel->gen < 5) {
+ if (intel->gen == 5)
+ msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_BIAS_GEN5;
else
msg_type = BRW_SAMPLER_MESSAGE_SIMD16_SAMPLE_BIAS;
mrf_per_channel = 2;
dst_retyped = retype(vec16(dst[0]), BRW_REGISTER_TYPE_UW);
response_length = 8;
} else {
- msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_BIAS_IGDNG;
+ msg_type = BRW_SAMPLER_MESSAGE_SAMPLE_BIAS_GEN5;
mrf_per_channel = 1;
dst_retyped = retype(vec8(dst[0]), BRW_REGISTER_TYPE_UW);
response_length = 4;
{
struct brw_compile *p = &c->func;
struct brw_reg r0uw = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW);
- GLuint i;
-
- /* XXX - usually won't need 4 compares!
- */
+ GLuint i, j;
+
for (i = 0; i < 4; i++) {
+ /* Check if we've already done the comparison for this reg
+ * -- common when someone does KIL TEMP.wwww.
+ */
+ for (j = 0; j < i; j++) {
+ if (memcmp(&arg0[j], &arg0[i], sizeof(arg0[0])) == 0)
+ break;
+ }
+ if (j != i)
+ continue;
+
brw_push_insn_state(p);
brw_CMP(p, brw_null_reg(), BRW_CONDITIONAL_GE, arg0[i], brw_imm_f(0));
brw_set_predicate_control_flag_value(p, 0xff);
projects / mesa.git / blobdiff