diff options
Diffstat (limited to 'source/blender/modifiers/intern/MOD_meshcache_pc2.c')
| -rw-r--r-- | source/blender/modifiers/intern/MOD_meshcache_pc2.c | 411 |
1 files changed, 207 insertions, 204 deletions
diff --git a/source/blender/modifiers/intern/MOD_meshcache_pc2.c b/source/blender/modifiers/intern/MOD_meshcache_pc2.c index e19a967cca7..97a8635ac9e 100644 --- a/source/blender/modifiers/intern/MOD_meshcache_pc2.c +++ b/source/blender/modifiers/intern/MOD_meshcache_pc2.c @@ -35,248 +35,251 @@ #include "DNA_modifier_types.h" -#include "MOD_meshcache_util.h" /* own include */ +#include "MOD_meshcache_util.h" /* own include */ typedef struct PC2Head { - char header[12]; /* 'POINTCACHE2\0' */ - int file_version; /* unused - should be 1 */ - int verts_tot; - float start; - float sampling; - int frame_tot; -} PC2Head; /* frames, verts */ - -static bool meshcache_read_pc2_head( - FILE *fp, const int verts_tot, - PC2Head *pc2_head, - const char **err_str) + char header[12]; /* 'POINTCACHE2\0' */ + int file_version; /* unused - should be 1 */ + int verts_tot; + float start; + float sampling; + int frame_tot; +} PC2Head; /* frames, verts */ + +static bool meshcache_read_pc2_head(FILE *fp, + const int verts_tot, + PC2Head *pc2_head, + const char **err_str) { - if (!fread(pc2_head, sizeof(*pc2_head), 1, fp)) { - *err_str = "Missing header"; - return false; - } + if (!fread(pc2_head, sizeof(*pc2_head), 1, fp)) { + *err_str = "Missing header"; + return false; + } - if (!STREQ(pc2_head->header, "POINTCACHE2")) { - *err_str = "Invalid header"; - return false; - } + if (!STREQ(pc2_head->header, "POINTCACHE2")) { + *err_str = "Invalid header"; + return false; + } #ifdef __BIG_ENDIAN__ - BLI_endian_switch_int32_array(&pc2_head->file_version, (sizeof(*pc2_head) - sizeof(pc2_head->header)) / sizeof(int)); + BLI_endian_switch_int32_array(&pc2_head->file_version, + (sizeof(*pc2_head) - sizeof(pc2_head->header)) / sizeof(int)); #endif - if (pc2_head->verts_tot != verts_tot) { - *err_str = "Vertex count mismatch"; - return false; - } + if (pc2_head->verts_tot != verts_tot) { + *err_str = "Vertex count mismatch"; + return false; + } - if (pc2_head->frame_tot <= 0) { - *err_str = "Invalid frame total"; - return false; - } - /* intentionally dont seek back */ + if (pc2_head->frame_tot <= 0) { + *err_str = "Invalid frame total"; + return false; + } + /* intentionally dont seek back */ - return true; + return true; } - /** * Gets the index frange and factor * * currently same as for MDD */ -static bool meshcache_read_pc2_range( - FILE *fp, - const int verts_tot, - const float frame, const char interp, - int r_index_range[2], float *r_factor, - const char **err_str) +static bool meshcache_read_pc2_range(FILE *fp, + const int verts_tot, + const float frame, + const char interp, + int r_index_range[2], + float *r_factor, + const char **err_str) { - PC2Head pc2_head; + PC2Head pc2_head; - /* first check interpolation and get the vert locations */ + /* first check interpolation and get the vert locations */ - if (meshcache_read_pc2_head(fp, verts_tot, &pc2_head, err_str) == false) { - return false; - } + if (meshcache_read_pc2_head(fp, verts_tot, &pc2_head, err_str) == false) { + return false; + } - MOD_meshcache_calc_range(frame, interp, pc2_head.frame_tot, r_index_range, r_factor); + MOD_meshcache_calc_range(frame, interp, pc2_head.frame_tot, r_index_range, r_factor); - return true; + return true; } -static bool meshcache_read_pc2_range_from_time( - FILE *fp, - const int verts_tot, - const float time, const float fps, - float *r_frame, - const char **err_str) +static bool meshcache_read_pc2_range_from_time(FILE *fp, + const int verts_tot, + const float time, + const float fps, + float *r_frame, + const char **err_str) { - PC2Head pc2_head; - float frame; + PC2Head pc2_head; + float frame; - if (meshcache_read_pc2_head(fp, verts_tot, &pc2_head, err_str) == false) { - return false; - } + if (meshcache_read_pc2_head(fp, verts_tot, &pc2_head, err_str) == false) { + return false; + } - frame = ((time / fps) - pc2_head.start) / pc2_head.sampling; + frame = ((time / fps) - pc2_head.start) / pc2_head.sampling; - if (frame >= pc2_head.frame_tot) { - frame = (float)(pc2_head.frame_tot - 1); - } - else if (frame < 0.0f) { - frame = 0.0f; - } + if (frame >= pc2_head.frame_tot) { + frame = (float)(pc2_head.frame_tot - 1); + } + else if (frame < 0.0f) { + frame = 0.0f; + } - *r_frame = frame; - return true; + *r_frame = frame; + return true; } -bool MOD_meshcache_read_pc2_index( - FILE *fp, - float (*vertexCos)[3], const int verts_tot, - const int index, const float factor, - const char **err_str) +bool MOD_meshcache_read_pc2_index(FILE *fp, + float (*vertexCos)[3], + const int verts_tot, + const int index, + const float factor, + const char **err_str) { - PC2Head pc2_head; - - if (meshcache_read_pc2_head(fp, verts_tot, &pc2_head, err_str) == false) { - return false; - } - - if (fseek(fp, sizeof(float) * 3 * index * pc2_head.verts_tot, SEEK_CUR) != 0) { - *err_str = "Failed to seek frame"; - return false; - } - - if (factor >= 1.0f) { - float *vco = *vertexCos; - unsigned int i; - for (i = pc2_head.verts_tot; i != 0 ; i--, vco += 3) { - fread(vco, sizeof(float) * 3, 1, fp); - -# ifdef __BIG_ENDIAN__ - BLI_endian_switch_float(vco + 0); - BLI_endian_switch_float(vco + 1); - BLI_endian_switch_float(vco + 2); -# endif /* __BIG_ENDIAN__ */ - } - } - else { - const float ifactor = 1.0f - factor; - float *vco = *vertexCos; - unsigned int i; - for (i = pc2_head.verts_tot; i != 0 ; i--, vco += 3) { - float tvec[3]; - fread(tvec, sizeof(float) * 3, 1, fp); + PC2Head pc2_head; + + if (meshcache_read_pc2_head(fp, verts_tot, &pc2_head, err_str) == false) { + return false; + } + + if (fseek(fp, sizeof(float) * 3 * index * pc2_head.verts_tot, SEEK_CUR) != 0) { + *err_str = "Failed to seek frame"; + return false; + } + + if (factor >= 1.0f) { + float *vco = *vertexCos; + unsigned int i; + for (i = pc2_head.verts_tot; i != 0; i--, vco += 3) { + fread(vco, sizeof(float) * 3, 1, fp); #ifdef __BIG_ENDIAN__ - BLI_endian_switch_float(tvec + 0); - BLI_endian_switch_float(tvec + 1); - BLI_endian_switch_float(tvec + 2); -#endif /* __BIG_ENDIAN__ */ - - vco[0] = (vco[0] * ifactor) + (tvec[0] * factor); - vco[1] = (vco[1] * ifactor) + (tvec[1] * factor); - vco[2] = (vco[2] * ifactor) + (tvec[2] * factor); - } - } - - return true; -} + BLI_endian_switch_float(vco + 0); + BLI_endian_switch_float(vco + 1); + BLI_endian_switch_float(vco + 2); +#endif /* __BIG_ENDIAN__ */ + } + } + else { + const float ifactor = 1.0f - factor; + float *vco = *vertexCos; + unsigned int i; + for (i = pc2_head.verts_tot; i != 0; i--, vco += 3) { + float tvec[3]; + fread(tvec, sizeof(float) * 3, 1, fp); +#ifdef __BIG_ENDIAN__ + BLI_endian_switch_float(tvec + 0); + BLI_endian_switch_float(tvec + 1); + BLI_endian_switch_float(tvec + 2); +#endif /* __BIG_ENDIAN__ */ + + vco[0] = (vco[0] * ifactor) + (tvec[0] * factor); + vco[1] = (vco[1] * ifactor) + (tvec[1] * factor); + vco[2] = (vco[2] * ifactor) + (tvec[2] * factor); + } + } + + return true; +} -bool MOD_meshcache_read_pc2_frame( - FILE *fp, - float (*vertexCos)[3], const int verts_tot, const char interp, - const float frame, - const char **err_str) +bool MOD_meshcache_read_pc2_frame(FILE *fp, + float (*vertexCos)[3], + const int verts_tot, + const char interp, + const float frame, + const char **err_str) { - int index_range[2]; - float factor; - - if (meshcache_read_pc2_range(fp, verts_tot, frame, interp, - index_range, &factor, /* read into these values */ - err_str) == false) - { - return false; - } - - if (index_range[0] == index_range[1]) { - /* read single */ - if ((fseek(fp, 0, SEEK_SET) == 0) && - MOD_meshcache_read_pc2_index(fp, vertexCos, verts_tot, index_range[0], 1.0f, err_str)) - { - return true; - } - else { - return false; - } - } - else { - /* read both and interpolate */ - if ((fseek(fp, 0, SEEK_SET) == 0) && - MOD_meshcache_read_pc2_index(fp, vertexCos, verts_tot, index_range[0], 1.0f, err_str) && - (fseek(fp, 0, SEEK_SET) == 0) && - MOD_meshcache_read_pc2_index(fp, vertexCos, verts_tot, index_range[1], factor, err_str)) - { - return true; - } - else { - return false; - } - } + int index_range[2]; + float factor; + + if (meshcache_read_pc2_range(fp, + verts_tot, + frame, + interp, + index_range, + &factor, /* read into these values */ + err_str) == false) { + return false; + } + + if (index_range[0] == index_range[1]) { + /* read single */ + if ((fseek(fp, 0, SEEK_SET) == 0) && + MOD_meshcache_read_pc2_index(fp, vertexCos, verts_tot, index_range[0], 1.0f, err_str)) { + return true; + } + else { + return false; + } + } + else { + /* read both and interpolate */ + if ((fseek(fp, 0, SEEK_SET) == 0) && + MOD_meshcache_read_pc2_index(fp, vertexCos, verts_tot, index_range[0], 1.0f, err_str) && + (fseek(fp, 0, SEEK_SET) == 0) && + MOD_meshcache_read_pc2_index(fp, vertexCos, verts_tot, index_range[1], factor, err_str)) { + return true; + } + else { + return false; + } + } } -bool MOD_meshcache_read_pc2_times( - const char *filepath, - float (*vertexCos)[3], const int verts_tot, const char interp, - const float time, const float fps, const char time_mode, - const char **err_str) +bool MOD_meshcache_read_pc2_times(const char *filepath, + float (*vertexCos)[3], + const int verts_tot, + const char interp, + const float time, + const float fps, + const char time_mode, + const char **err_str) { - float frame; - - FILE *fp = BLI_fopen(filepath, "rb"); - bool ok; - - if (fp == NULL) { - *err_str = errno ? strerror(errno) : "Unknown error opening file"; - return false; - } - - switch (time_mode) { - case MOD_MESHCACHE_TIME_FRAME: - { - frame = time; - break; - } - case MOD_MESHCACHE_TIME_SECONDS: - { - /* we need to find the closest time */ - if (meshcache_read_pc2_range_from_time(fp, verts_tot, time, fps, &frame, err_str) == false) { - fclose(fp); - return false; - } - rewind(fp); - break; - } - case MOD_MESHCACHE_TIME_FACTOR: - default: - { - PC2Head pc2_head; - if (meshcache_read_pc2_head(fp, verts_tot, &pc2_head, err_str) == false) { - fclose(fp); - return false; - } - - frame = CLAMPIS(time, 0.0f, 1.0f) * (float)pc2_head.frame_tot; - rewind(fp); - break; - } - } - - ok = MOD_meshcache_read_pc2_frame(fp, vertexCos, verts_tot, interp, frame, err_str); - - fclose(fp); - return ok; + float frame; + + FILE *fp = BLI_fopen(filepath, "rb"); + bool ok; + + if (fp == NULL) { + *err_str = errno ? strerror(errno) : "Unknown error opening file"; + return false; + } + + switch (time_mode) { + case MOD_MESHCACHE_TIME_FRAME: { + frame = time; + break; + } + case MOD_MESHCACHE_TIME_SECONDS: { + /* we need to find the closest time */ + if (meshcache_read_pc2_range_from_time(fp, verts_tot, time, fps, &frame, err_str) == false) { + fclose(fp); + return false; + } + rewind(fp); + break; + } + case MOD_MESHCACHE_TIME_FACTOR: + default: { + PC2Head pc2_head; + if (meshcache_read_pc2_head(fp, verts_tot, &pc2_head, err_str) == false) { + fclose(fp); + return false; + } + + frame = CLAMPIS(time, 0.0f, 1.0f) * (float)pc2_head.frame_tot; + rewind(fp); + break; + } + } + + ok = MOD_meshcache_read_pc2_frame(fp, vertexCos, verts_tot, interp, frame, err_str); + + fclose(fp); + return ok; } |