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typedef struct { |
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GLenum mode; |
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GLenum format; // 0, GL_T2F_V3F, GL_V2F |
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GLint texname; |
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unsigned char r, g, b, a; |
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} rc_key_t; |
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typedef struct { |
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HV *hv; |
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} rc_t; |
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typedef SV rc_array_t; |
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static rc_t * |
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rc_alloc () |
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{ |
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rc_t *rc = g_slice_new0 (rc_t); |
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rc->hv = newHV (); |
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return rc; |
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} |
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static void |
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rc_free (rc_t *rc) |
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{ |
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SvREFCNT_dec (rc->hv); |
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g_slice_free (rc_t, rc); |
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} |
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static void |
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rc_clear (rc_t *rc) |
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{ |
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hv_clear (rc->hv); |
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} |
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static rc_array_t * |
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rc_array (rc_t *rc, rc_key_t *k) |
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{ |
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SV *sv = *hv_fetch (rc->hv, (char *)k, sizeof (*k), 1); |
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if (SvTYPE (sv) != SVt_PV) |
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{ |
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sv_upgrade (sv, SVt_PV); |
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SvPOK_only (sv); |
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} |
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return sv; |
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} |
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static void |
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rc_v2f (rc_array_t *arr, float x, float y) |
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{ |
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1.2 |
STRLEN len = SvCUR (arr) + sizeof (float) * 2; |
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1.1 |
SvGROW (arr, len); |
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((float *)SvEND (arr))[0] = x; |
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((float *)SvEND (arr))[1] = y; |
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SvCUR_set (arr, len); |
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} |
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static void |
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rc_t2f_v3f (rc_array_t *arr, float u, float v, float x, float y, float z) |
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{ |
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STRLEN len = SvCUR (arr) + sizeof (float) * 5; |
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SvGROW (arr, len); |
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((float *)SvEND (arr))[0] = u; |
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((float *)SvEND (arr))[1] = v; |
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((float *)SvEND (arr))[2] = x; |
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((float *)SvEND (arr))[3] = y; |
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((float *)SvEND (arr))[4] = z; |
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SvCUR_set (arr, len); |
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} |
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static void |
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rc_draw (rc_t *rc) |
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{ |
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HE *he; |
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hv_iterinit (rc->hv); |
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while ((he = hv_iternext (rc->hv))) |
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{ |
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rc_key_t *key = (rc_key_t *)HeKEY (he); |
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rc_array_t *arr = HeVAL (he); |
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STRLEN len; |
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char *arr_pv = SvPV (arr, len); |
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GLsizei stride; |
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if (key->texname) |
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{ |
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glBindTexture (GL_TEXTURE_2D, key->texname); |
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glEnable (GL_TEXTURE_2D); |
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} |
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else |
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glDisable (GL_TEXTURE_2D); |
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glColor4ub (key->r, key->g, key->b, key->a); |
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root |
1.3 |
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stride = key->format == GL_T2F_V3F ? sizeof (float) * 5 |
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: key->format == GL_V2F ? sizeof (float) * 2 |
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: 65536; |
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1.1 |
glInterleavedArrays (key->format, 0, (void *)arr_pv); |
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glDrawArrays (key->mode, 0, len / stride); |
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} |
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glDisable (GL_TEXTURE_2D); |
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} |
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