104 lines
2.5 KiB
C
104 lines
2.5 KiB
C
#include "vk_studio.h"
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#include "vk_common.h"
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#include "vk_textures.h"
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#include "vk_render.h"
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#include "vk_geometry.h"
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#include "camera.h"
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#include "xash3d_mathlib.h"
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#include "const.h"
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#include "r_studioint.h"
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#include "triangleapi.h"
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#include "studio.h"
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#include "pm_local.h"
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#include "pmtrace.h"
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#include "protocol.h"
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#include "enginefeatures.h"
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#include "pm_movevars.h"
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#include <memory.h>
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#include <stdlib.h>
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#define PREV_STATES_COUNT 1024
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#define PREV_FRAMES_COUNT 2
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typedef struct {
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matrix3x4 bones_worldtransform[MAXSTUDIOBONES];
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matrix4x4 model_transform;
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float time;
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int bones_update_frame_index;
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} prev_state_t;
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typedef struct {
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prev_state_t prev_states[PREV_FRAMES_COUNT][PREV_STATES_COUNT];
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int frame_index;
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int current_frame_id;
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int previous_frame_id;
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} prev_states_storage_t;
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prev_states_storage_t g_prev = { 0 };
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static inline int clampIndex( int index, int array_length )
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{
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if (index < 0)
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return 0;
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else if (index >= array_length)
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return array_length - 1;
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return index;
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}
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prev_state_t* prevStateInArrayBounds( int frame_storage_id, int entity_id )
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{
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int clamped_frame_id = clampIndex( frame_storage_id, PREV_FRAMES_COUNT );
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int clamped_entity_id = clampIndex( entity_id, PREV_STATES_COUNT );
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return &g_prev.prev_states[clamped_frame_id][clamped_entity_id];
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}
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#define PREV_FRAME() prevStateInArrayBounds( g_prev.previous_frame_id, entity_id )
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#define CURRENT_FRAME() prevStateInArrayBounds( g_prev.current_frame_id, entity_id )
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void R_PrevFrame_StartFrame( void )
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{
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g_prev.frame_index++;
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g_prev.current_frame_id = g_prev.frame_index % PREV_FRAMES_COUNT;
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g_prev.previous_frame_id = g_prev.frame_index - 1;
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}
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void R_PrevFrame_SaveCurrentBoneTransforms( int entity_id, matrix3x4* bones_transforms )
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{
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prev_state_t *state = CURRENT_FRAME();
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if (state->bones_update_frame_index == g_prev.frame_index)
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return; // already updated for this entity
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state->bones_update_frame_index = g_prev.frame_index;
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for( int i = 0; i < MAXSTUDIOBONES; i++ )
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{
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Matrix3x4_Copy(state->bones_worldtransform[i], bones_transforms[i]);
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}
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}
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void R_PrevFrame_SaveCurrentState( int entity_id, matrix4x4 model_transform )
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{
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prev_state_t* state = CURRENT_FRAME();
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Matrix4x4_Copy( state->model_transform, model_transform );
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state->time = gpGlobals->time;
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}
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matrix3x4* R_PrevFrame_BoneTransforms( int entity_id )
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{
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return PREV_FRAME()->bones_worldtransform;
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}
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void R_PrevFrame_ModelTransform( int entity_id, matrix4x4 model_matrix )
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{
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Matrix4x4_Copy(model_matrix, PREV_FRAME()->model_transform);
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}
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float R_PrevFrame_Time( int entity_id )
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{
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return PREV_FRAME()->time;
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}
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