Super Mario 64 OpenGL port for PC. Mirror of https://github.com/sm64pc/sm64pc https://github.com/sm64pc/sm64pc
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#include <ultra64.h>
#include "sm64.h"
#include "game/level_update.h"
#include "math_util.h"
#include "game/memory.h"
#include "graph_node.h"
#include "game/rendering_graph_node.h"
#include "game/area.h"
#include "geo_layout.h"
#if IS_64_BIT
static s16 next_s16_in_geo_script(s16 **src) {
s16 ret;
if (((uintptr_t)(*src) & 7) == 4) {
*src += 2; // skip 32 bits
}
ret = *(*src)++;
if (((uintptr_t)(*src) & 7) == 4) {
*src += 2; // skip 32 bits
}
return ret;
}
#else
#define next_s16_in_geo_script(src) (*(*src)++)
#endif
/**
* Takes a pointer to three shorts (supplied by a geo layout script) and
* copies it to the destination float vector.
*/
s16 *read_vec3s_to_vec3f(Vec3f dst, s16 *src) {
dst[0] = next_s16_in_geo_script(&src);
dst[1] = next_s16_in_geo_script(&src);
dst[2] = next_s16_in_geo_script(&src);
return src;
}
/**
* Takes a pointer to three shorts (supplied by a geo layout script) and
* copies it to the destination vector. It's essentially a memcpy but consistent
* with the other two 'geo-script vector to internal vector' functions.
*/
s16 *read_vec3s(Vec3s dst, s16 *src) {
dst[0] = next_s16_in_geo_script(&src);
dst[1] = next_s16_in_geo_script(&src);
dst[2] = next_s16_in_geo_script(&src);
return src;
}
/**
* Takes a pointer to three angles in degrees (supplied by a geo layout script)
* and converts it to a vector of three in-game angle units in [-32768, 32767]
* range.
*/
s16 *read_vec3s_angle(Vec3s dst, s16 *src) {
dst[0] = (next_s16_in_geo_script(&src) << 15) / 180;
dst[1] = (next_s16_in_geo_script(&src) << 15) / 180;
dst[2] = (next_s16_in_geo_script(&src) << 15) / 180;
return src;
}
/**
* Add the given graph node as a child to the current top of the gfx stack:
* 'gCurGraphNodeList'. This is called from geo_layout commands to add nodes
* to the scene graph.
*/
void register_scene_graph_node(struct GraphNode *graphNode) {
if (graphNode != NULL) {
gCurGraphNodeList[gCurGraphNodeIndex] = graphNode;
if (gCurGraphNodeIndex == 0) {
if (gCurRootGraphNode == NULL) {
gCurRootGraphNode = graphNode;
}
} else {
if (gCurGraphNodeList[gCurGraphNodeIndex - 1]->type == GRAPH_NODE_TYPE_OBJECT_PARENT) {
((struct GraphNodeObjectParent *) gCurGraphNodeList[gCurGraphNodeIndex - 1])
->sharedChild = graphNode;
} else {
geo_add_child(gCurGraphNodeList[gCurGraphNodeIndex - 1], graphNode);
}
}
}
}