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use tb_bind_ macro fro draw cube and tri, better type convention on binds.

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ed
2026-09-03 17:36:36 -04:00
parent 6b3fbab387
commit 1faf3539d8
3 changed files with 54 additions and 79 deletions
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code/hello_camera/hello_camera.c
+27 -37
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@@ -241,7 +241,6 @@ FI_ void camera_look_at(TapeBuilder_R tb, Camera* c, P3_S4* target, V3_S4* up_in
void update(PrimitiveArena* pa, U4* ordering_buf)
{
TapeBuilder tb = tb_make(slice_ut_arr(smem.MemTape));
/*Pad Input*/ {
tb.used = 0; tb_scope_run(& tb) {
// Grab latest state from bios.
@@ -288,33 +287,28 @@ void update(PrimitiveArena* pa, U4* ordering_buf)
mt3s2s4_rotation (& smem.cube.rot, & smem.tform_world);
mt3s2s4_translation(& smem.tform_world, & smem.cube.pos);
mt3s2s4_scale (& smem.tform_world, & smem.cube.scale);
// Combine world and look_at matrix.
gte_comp_coord_m3s2(& smem.cam.look_at, & smem.tform_world, & smem.tform_view);
gte_matrix_set_rotation (& smem.tform_view);
gte_matrix_set_translation(& smem.tform_view);
U4 prim_base = u4_(pa->buf[smem.active_buf_id]);
U4 prim_cursor = prim_base + pa->used;
tb.used = 0; tb_scope(& tb) {
tb_emit(& tb, rbind_cube_g4_face);
tb_data(& tb, prim_cursor);
tb_data(& tb, u4_(smem.cube.faces));
tb_data(& tb, u4_(smem.cube.verts));
tb_data(& tb, u4_(ordering_buf));
U1* prim_base = u1_r(pa->buf[smem.active_buf_id]);
U1* prim_cursor = prim_base + pa->used;
tb.used = 0; tb_scope_run(& tb) {
tb_emit(& tb, rbind_cube_g4_face); tb_bind_(& tb, Binds_CubeTri,
.prim_cursor = prim_cursor,
.face_cursor = smem.cube.faces,
.vert_base = smem.cube.verts,
.ot_base = ordering_buf,
);
for (U4 i = 0; i < Cube_num_faces; i++) {
// Two triangles per quad face: (x,y,z) and (x,z,w)
tb_emit(& tb, cube_g4_face);
tb_emit(& tb, cube_g4_face); // Two triangles per quad face: (x,y,z) and (x,z,w)
}
tb_emit(& tb, sync_primitive_arena);
tb_data(& tb, u4_(& pa->used));
tb_data(& tb, prim_base);
tb_emit(& tb, sync_primitive_arena); tb_bind_(& tb, Binds_SyncPrimitiveArena,
.used = & pa->used,
.cursor = prim_base,
);
}
tape_run(tb_slice(tb));// Fire off the tape (bigger-clobber variant).
// smem.cube.rot.y += 30;
}
// Draw floor
@@ -330,33 +324,29 @@ void update(PrimitiveArena* pa, U4* ordering_buf)
gte_matrix_set_rotation (& smem.tform_view);
gte_matrix_set_translation(& smem.tform_view);
U4 prim_base = u4_(pa->buf[smem.active_buf_id]);
U4 prim_cursor = prim_base + pa->used;
U1_R prim_base = u1_r(pa->buf[smem.active_buf_id]);
U1_R prim_cursor = prim_base + pa->used;
// TODO(Ed): We should do a bounds check beforehand to confirm pa can hold all tris?
// The tape atoms in-flight should not need to care.
// Prepare the tape. (Push protocol to tape)
tb.used = 0; tb_scope(& tb) {
// tb_emit(& tb, set_gte_mt3s2s4);
// tb_data(& tb, u4_(& smem.tform_view));
tb_emit(& tb, rbind_floor_f3_face);
// TODO(Ed): Just use a single context struct ref?
tb_data(& tb, prim_cursor);
tb_data(& tb, u4_(smem.floor.faces));
tb_data(& tb, u4_(smem.floor.verts));
tb_data(& tb, u4_(ordering_buf));
tb.used = 0; tb_scope_run(& tb) {
tb_emit(& tb, rbind_floor_f3_face); tb_bind_(& tb, Binds_FloorTri,
.prim_cursor = prim_cursor,
.face_cursor = smem.floor.faces,
.vert_base = smem.floor.verts,
.ot_base = ordering_buf,
);
for (U4 i = 0; i < Floor_num_faces; i++) {
tb_emit(& tb, floor_f3_face);
}
// After floor_f3_face iterations complete, the primitive arena's used counter needs updating.
tb_emit(& tb, sync_primitive_arena);
tb_data(& tb, u4_(& pa->used));
tb_data(& tb, prim_base);
tb_emit(& tb, sync_primitive_arena); tb_bind_(& tb, Binds_SyncPrimitiveArena,
.used = & pa->used,
.cursor = prim_base,
);
}
tape_run(tb_slice(tb));// Fire off the tape (bigger-clobber variant).
// C-side state (pa->used) has already been updated by the tape!
// smem.floor.rot.y += 5;
}