void C3D_ImmSendAttrib(float x, float y, float z, float w)
{
union
{
u32 packed[3];
struct
{
u8 x[3];
u8 y[3];
u8 z[3];
u8 w[3];
};
} param;
// Convert the values to float24
write24(param.x, f32tof24(x));
write24(param.y, f32tof24(y));
write24(param.z, f32tof24(z));
write24(param.w, f32tof24(w));
// Reverse the packed words
u32 p = param.packed[0];
param.packed[0] = param.packed[2];
param.packed[2] = p;
// Send the attribute
GPUCMD_AddIncrementalWrites(GPUREG_FIXEDATTRIB_DATA0, param.packed, 3);
}
static u_char *write_audio_packet(u_char *buf, int prefix, uint32_t timestamp,
const void *data, uint32_t size) {
*buf = 8;
write24(buf + 1, size + 2);
write24(buf + 4, timestamp % 0x1000000);
buf[7] = (timestamp / 0x1000000) & 0xff;
buf[8] = buf[9] = buf[10] = 0;
buf[11] = 0xaf;
buf[12] = prefix ? 0 : 1;
memcpy(buf + 13, data, size);
write32(buf + 13 + size, size + 2 + 11);
return buf + 13 + size + 4;
}
static u_char *write_video_packet(u_char *buf, int keyframe, int prefix, uint32_t comp_offset,
uint32_t timestamp,
const void *data, uint32_t size) {
*buf = 9;
write24(buf + 1, size + 5);
write24(buf + 4, timestamp % 0x1000000);
buf[7] = (timestamp / 0x1000000) & 0xff;
buf[8] = buf[9] = buf[10] = 0;
buf[11] = (prefix || keyframe) ? 0x17 : 0x27;
buf[12] = prefix ? 0 : 1;
write24(buf + 13, comp_offset);
memcpy(buf + 16, data, size);
write32(buf + 16 + size, size + 5 + 11);
return buf + 16 + size + 4;
}
static void write32(u_char *buf, uint32_t value) {
buf[0] = value / 0x1000000;
write24(buf + 1, value);
}
