Update convention yet again

Doing stuff inspired by Timothy Lottes's fixing c vod
This commit is contained in:
2025-10-11 00:18:44 -04:00
parent 2f797bf9e2
commit 274e0f31f5
10 changed files with 327 additions and 276 deletions
+111 -49
View File
@@ -10,104 +10,150 @@
#include "duffle/gp.h"
#include "hello_gpu.h"
typedef def_farray(Vec_2S16, 3);
typedef def_farray(V2_S2, 3);
typedef def_struct(TriFlat) {
U32 tag;
U4 tag;
RGB8 color;
BYTE code;
B1 code;
union {
struct {
Vec_2S16 p0;
Vec_2S16 p1;
Vec_2S16 p2;
V2_S2 p0;
V2_S2 p1;
V2_S2 p2;
};
A3_Vec_2S16 points;
A3_V2_S2 points;
};
};
typedef def_farray(Vec_2S16, 4);
typedef def_farray(V2_S2, 4);
typedef def_struct(QuadFlat) {
U32 tag;
U4 tag;
RGB8 color;
BYTE code;
B1 code;
union {
struct {
Vec_2S16 p0;
Vec_2S16 p1;
Vec_2S16 p2;
Vec_2S16 p3;
V2_S2 p0;
V2_S2 p1;
V2_S2 p2;
V2_S2 p3;
};
A4_Vec_2S16 points;
A4_V2_S2 points;
};
};
typedef def_struct(QuadGouraud) {
U32 tag; RGB8 c0; BYTE code;
Vec_2S16 p0; RGB8 c1; BYTE pad1;
Vec_2S16 p1; RGB8 c2; BYTE pad2;
Vec_2S16 p2; RGB8 c3; BYTE pad3;
Vec_2S16 p3;
U4 tag; RGB8 c0; B1 code;
V2_S2 p0; RGB8 c1; B1 pad1;
V2_S2 p1; RGB8 c2; B1 pad2;
V2_S2 p2; RGB8 c3; B1 pad3;
V2_S2 p3;
};
typedef def_struct(Tile) {
U32 tag;
RGB8 color;
BYTE code;
Rect_S16 rect;
U4 tag;
RGB8 color;
B1 code;
Rect_S2 rect;
};
#define PrimitiveBuff_Len 2048
#define OrderingTbl_Len 32
#define OrderingTbl_Len 256
typedef U32 OrderingTable_Buffer[OrderingTbl_Len];
typedef U4 OrderingTable_Buffer[OrderingTbl_Len];
typedef def_farray(OrderingTable_Buffer, 2);
typedef BYTE PrimitiveBuffer[PrimitiveBuff_Len];
typedef B1 PrimitiveBuffer[PrimitiveBuff_Len];
typedef def_farray(PrimitiveBuffer, 2);
typedef def_struct(PrimitiveArena) {
A2_PrimitiveBuffer buf;
SSIZE used;
U4 used;
};
#define Cube_num_verts 8
#define Cube_num_faces 12
typedef def_farray(V3_S2, Cube_num_verts);
typedef def_farray(V3_S2, Cube_num_faces);
void cube128_init(A8_V3_S2* verts, A12_V3_S2* faces) {
memory_copy(verts, & (A8_V3_S2) {
{ -128, -128, -128 },
{ 128, -128, -128 },
{ 128, -128, 128 },
{ -128, -128, 128 },
{ -128, 128, -128 },
{ 128, 128, -128 },
{ 128, 128, 128 },
{ -128, 128, 128 }
},
size_of(A8_V3_S2)
);
memory_copy(faces, & (A12_V3_S2) {
{ 0, 3, 2 }, // top
{ 0, 2, 1 }, // top
{ 4, 0, 1 }, // front
{ 4, 1, 5 }, // front
{ 7, 4, 5 }, // bottom
{ 7, 5, 6 }, // bottom
{ 5, 1, 2 }, // right
{ 5, 2, 6 }, // right
{ 2, 3, 7 }, // back
{ 2, 7, 6 }, // back
{ 0, 4, 7 }, // left
{ 0, 7, 3 } // left
},
size_of(A12_V3_S2)
);
return;
}
typedef def_struct(SMemory) {
DoubleBuffer screen_buf;
A2_OrderingTable_Buffer ordering_tbl;
PrimitiveArena primitives;
S16 active_buf_id;
S2 active_buf_id;
V3_S2 rotation;
V3_S4 translation;
V3_S4 scale;
M3_S2 tform_world;
A8_V3_S2 cube_verts;
A12_V3_S2 cube_faces;
};
global SMemory static_mem;
extern SMemory static_mem;
BYTE* prim__alloc(SSIZE type_width, dbg_args(Str8 type_name)) {
gknown PrimitiveArena* pa = & static_mem.primitives;
gknown BYTE* buf = (BYTE*) static_mem.primitives.buf[static_mem.active_buf_id];
B1* prim__alloc(U4 type_width, Str8 type_name) {
gknown PrimitiveArena* pa = & static_mem.primitives;
gknown B1* buf = (B1*) r_(static_mem.primitives.buf)[static_mem.active_buf_id];
assert(pa->used + type_width < PrimitiveBuff_Len);
BYTE* next = buf + pa->used;
pa->used += type_width;
B1* next = buf + pa->used;
pa->used += type_width;
return next;
}
#define prim_alloc(type) (type*)prim__alloc(size_of(type), txt( stringify(type)))
void gp_screen_init_c11(DoubleBuffer* screen_buf, S16* active_buf_id)
void gp_screen_init_c11(DoubleBuffer* screen_buf, S2* active_buf_id)
{
reset_graph(0);
set_display_enabled(1); // gp_DisplayEnabled
// Set the current initial buffer
* active_buf_id = 0;
active_buf_id[0] = 0;
// Just setting env data, not interacting with console hw.
// First buffer area
displayenv_init(& screen_buf->display[0], 0, 0, ScreenRes_X, ScreenRes_Y);
drawenv_init (& screen_buf->draw [0], 0, ScreenRes_Y, ScreenRes_X, ScreenRes_Y);
displayenv_init(& r_(screen_buf->display)[0], 0, 0, ScreenRes_X, ScreenRes_Y);
drawenv_init (& r_(screen_buf->draw )[0], 0, ScreenRes_Y, ScreenRes_X, ScreenRes_Y);
// Second buffer area
displayenv_init(& screen_buf->display[1], 0, ScreenRes_Y, ScreenRes_X, ScreenRes_Y);
drawenv_init (& screen_buf->draw [1], 0, 0, ScreenRes_X, ScreenRes_Y);
displayenv_init(& r_(screen_buf->display)[1], 0, ScreenRes_Y, ScreenRes_X, ScreenRes_Y);
drawenv_init (& r_(screen_buf->draw )[1], 0, 0, ScreenRes_X, ScreenRes_Y);
// Set the back/drawing buffer
screen_buf->draw[0].enable_auto_clear = true;
screen_buf->draw[1].enable_auto_clear = true;
// Set the background clear color
screen_buf->draw[0].initial_bg_color = rgba8( .r = 63, .g = 0, .b = 127 );
screen_buf->draw[1].initial_bg_color = rgba8( .r = 127, .g = 63, .b = 0 );
displayenv_put(& screen_buf->display[* active_buf_id]);
drawenv_put (& screen_buf->draw [* active_buf_id]);
displayenv_put(& r_(screen_buf->display)[ active_buf_id[0] ]);
drawenv_put (& r_(screen_buf->draw )[ active_buf_id[0] ]);
// Initialize and setup the GTE geometry offsets
geom_init();
@@ -115,11 +161,11 @@ void gp_screen_init_c11(DoubleBuffer* screen_buf, S16* active_buf_id)
geom_set_screen(ScreenZ);
}
void gp_display_frame(DoubleBuffer* screen_buf, S16* active_buf_id, U32* ordering_buf, PrimitiveArena* pa) {
void gp_display_frame(DoubleBuffer* screen_buf, S2* active_buf_id, U4* ordering_buf, PrimitiveArena* pa) {
draw_sync(0);
vsync(0);
displayenv_put(& screen_buf->display[* active_buf_id]);
drawenv_put (& screen_buf->draw [* active_buf_id]);
displayenv_put(& r_(screen_buf->display)[active_buf_id[0] ]);
drawenv_put (& r_(screen_buf->draw) [active_buf_id[0] ]);
{
draw_orderingtbl(ordering_buf + OrderingTbl_Len - 1);
pa->used = 0;
@@ -130,10 +176,24 @@ void gp_display_frame(DoubleBuffer* screen_buf, S16* active_buf_id, U32* orderin
void render(void) {
}
void update(PrimitiveArena* pa, U32* ordering_buf) {
void update(PrimitiveArena* pa, U4* ordering_buf)
{
orderingtbl_clear_reverse(ordering_buf, OrderingTbl_Len);
m3s2_rotation (& static_mem.rotation, & static_mem.tform_world);
m3s2_translation(& static_mem.tform_world, & static_mem.translation);
m3s2_scale (& static_mem.tform_world, & static_mem.scale);
gte_matrix_set_rotation (& static_mem.tform_world);
gte_matrix_set_translation(& static_mem.tform_world);
TriFlat* tri = prim_alloc(TriFlat); set_tri_flat(tri);
tri->color = rgba8(255, 0, 0);
S4 otz = 0;
// otz += vec_3s16_rtp(& )
#if 0
Tile* tile = prim_alloc(Tile); set_tile(tile);
tile->rect = (Rect_S16){ 82, 32, 64, 64 };
tile->color = (RGB8){ 0, 255, 0};
@@ -163,17 +223,19 @@ void update(PrimitiveArena* pa, U32* ordering_buf) {
quadf->p3 = vec_2s16(220 + 15, 80 + 9);
quadf->color = rgba8(22, 22, 22);
orderingtbl_add_primitive(ordering_buf, quadf);
#endif
}
int main(void)
{
static_mem.primitives.used = 0;
cube128_init(& static_mem.cube_verts, & static_mem.cube_faces);
gknown gp_screen_init();
// gp_screen_init_c11(& static_mem.screen_buf, & static_mem.active_screen_buf);
while (1)
{
gknown S16* active_buf_id = & static_mem.active_buf_id;
gknown U32* ordering_buf = static_mem.ordering_tbl[* active_buf_id];
gknown S2* active_buf_id = & static_mem.active_buf_id;
gknown U4* ordering_buf = r_(static_mem.ordering_tbl)[active_buf_id[0]];
gknown PrimitiveArena* pa = & static_mem.primitives;
update(pa, ordering_buf);
render();