ed/pikuma_ps1
1
0
Fork 0
mirror of https://github.com/Ed94/pikuma_ps1.git synced 2026-08-25 02:20:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

tb_bind_ to help with named association of tb_data emissions

Browse Source
This commit is contained in:
ed
2026-08-20 22:35:34 -04:00
parent 85b2205603
commit f1801343e2
3 changed files with 16 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files
code/hello_camera/hello_camera.c
+12 -18
View File
@@ -167,15 +167,11 @@ internal void compile_init_atoms(void) {
}
internal void compile_resolve_look_at(void) {
AtomArena ab = atomarena_make(slice_ut_arr(smem.resolve_look_at_mem));
AtomBundle_resolve_look_at_R bundle = C_(void*, smem.resolve_look_at_bundle);
/* R_ScratchBase (= R_SP) is a tape carrier preserved across atoms; no carrier
* pin is needed in the regfile. The standard 24-register pool is sufficient. */
RegFile rf = regfile(regfile_abi_mask);
AtomArena ab = atomarena_make(slice_ut_arr(smem.resolve_look_at_mem));
RegFile rf = regfile(regfile_abi_mask);
#define ralloc() regfile_alloc(& rf)
#define ralloc_v3() { ralloc(), ralloc(), ralloc() }
bundle->input_and_sub = AtomBundleEntry_(resolve_look_at, input_and_sub)(& ab,
RegUse_(resolve_look_at_input_and_sub) {
.target_ptr = ralloc(),
@@ -203,29 +199,26 @@ internal void compile_resolve_look_at(void) {
.r2 = ralloc(),
});
/* Sanity check: arena didn't overflow. */
assert(ab.used <= ResolveLookAtArena_Size);
assert(ab.used <= ResolveLookAtArena_Size); // Sanity check: arena didn't overflow.
#undef ralloc
}
/* Emit the resolve_look_at bundle into the tape. Called once per frame from update(). */
I_ void resolve_look_at(TapeBuilder_R tb
, MT3_S2S4* look_at
, P3_S4* eye
, P3_S4* target
, V3_S4* up_in
){
// Emit the resolve_look_at bundle into the tape. Called once per frame from update().
I_ void resolve_look_at(TapeBuilder_R tb, MT3_S2S4* look_at, P3_S4* eye, P3_S4* target, V3_S4* up_in) {
/* Typed view of the scratchpad for field-address arithmetic. */
ResolveLookAtScratch* sp = C_scratch(ResolveLookAtScratch*);
ResolveLookAtScratch* sp = C_scratch(ResolveLookAtScratch*);
AtomBundle_resolve_look_at_R bundle = C_(void*, smem.resolve_look_at_bundle);
tb_emit(tb, bundle->input_and_sub); {
tb_data(tb, u4_(target));
tb_data(tb, u4_(eye));
tb_data(tb, u4_(up_in));
}
tb_emit(tb, bundle->normalize_fwd_uz); {
tb_data(tb, u4_(O_(ResolveLookAtScratch, fwd) | (O_(ResolveLookAtScratch, uz) << 16)));
// tb_data(tb, u4_(O_(ResolveLookAtScratch, fwd) | (O_(ResolveLookAtScratch, uz) << 16)));
tb_bind_(tb, Binds_NormalizeV3S4,
.src_offset = O_(ResolveLookAtScratch,fwd),
.dst_offset = O_(ResolveLookAtScratch,uz),
);
}
tb_emit(tb, bundle->cross_to_right); {
tb_data(tb, u4_(& sp->uz));
@@ -247,6 +240,7 @@ I_ void resolve_look_at(TapeBuilder_R tb
tb_data(tb, u4_(look_at));
}
}
FI_ void camera_look_at(TapeBuilder_R tb, Camera* c, P3_S4* target, V3_S4* up_in) { resolve_look_at(tb, & c->look_at, & c->pos, target, up_in); }
GCC_OPTIMIZATION_DISABLE
void update(PrimitiveArena* pa, U4* ordering_buf)