Panda3D
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This object provides a high-level interface for quickly reading a sequence of numeric values from a vertex table. More...
#include "geomVertexReader.h"
Public Member Functions | |
GeomVertexReader (const GeomVertexArrayData *array_data, int column, Thread *current_thread=Thread::get_current_thread()) | |
Constructs a new reader to process the vertices of the indicated array only. | |
GeomVertexReader (const GeomVertexArrayData *array_data, Thread *current_thread=Thread::get_current_thread()) | |
Constructs a new reader to process the vertices of the indicated array only. | |
GeomVertexReader (const GeomVertexData *vertex_data, CPT_InternalName name, Thread *current_thread=Thread::get_current_thread()) | |
Constructs a new reader to process the vertices of the indicated data object. | |
GeomVertexReader (const GeomVertexData *vertex_data, Thread *current_thread=Thread::get_current_thread()) | |
Constructs a new reader to process the vertices of the indicated data object. | |
GeomVertexReader (const GeomVertexDataPipelineReader *data_reader, const InternalName *name, bool force=true) | |
Constructs a new reader to process the vertices of the indicated data object. | |
GeomVertexReader (const GeomVertexReader ©) | |
GeomVertexReader (Thread *current_thread=Thread::get_current_thread()) | |
Constructs an invalid GeomVertexReader. | |
void | clear () |
Resets the GeomVertexReader to the initial state. | |
int | get_array () const |
Returns the array index containing the data type that the reader is working on. | |
const GeomVertexArrayData * | get_array_data () const |
Returns the particular array object that the reader is currently processing. | |
const GeomVertexArrayDataHandle * | get_array_handle () const |
Returns the read handle to the array object that the read is currently processing. | |
const GeomVertexColumn * | get_column () const |
Returns the description of the data type that the reader is working on. | |
Thread * | get_current_thread () const |
Returns the Thread pointer of the currently-executing thread, as passed to the constructor of this object. | |
PN_stdfloat | get_data1 () |
Returns the data associated with the read row, expressed as a 1-component value, and advances the read row. | |
double | get_data1d () |
Returns the data associated with the read row, expressed as a 1-component value, and advances the read row. | |
float | get_data1f () |
Returns the data associated with the read row, expressed as a 1-component value, and advances the read row. | |
int | get_data1i () |
Returns the data associated with the read row, expressed as a 1-component value, and advances the read row. | |
const LVecBase2 & | get_data2 () |
Returns the data associated with the read row, expressed as a 2-component value, and advances the read row. | |
const LVecBase2d & | get_data2d () |
Returns the data associated with the read row, expressed as a 2-component value, and advances the read row. | |
const LVecBase2f & | get_data2f () |
Returns the data associated with the read row, expressed as a 2-component value, and advances the read row. | |
const LVecBase2i & | get_data2i () |
Returns the data associated with the read row, expressed as a 2-component value, and advances the read row. | |
const LVecBase3 & | get_data3 () |
Returns the data associated with the read row, expressed as a 3-component value, and advances the read row. | |
const LVecBase3d & | get_data3d () |
Returns the data associated with the read row, expressed as a 3-component value, and advances the read row. | |
const LVecBase3f & | get_data3f () |
Returns the data associated with the read row, expressed as a 3-component value, and advances the read row. | |
const LVecBase3i & | get_data3i () |
Returns the data associated with the read row, expressed as a 3-component value, and advances the read row. | |
const LVecBase4 & | get_data4 () |
Returns the data associated with the read row, expressed as a 4-component value, and advances the read row. | |
const LVecBase4d & | get_data4d () |
Returns the data associated with the read row, expressed as a 4-component value, and advances the read row. | |
const LVecBase4f & | get_data4f () |
Returns the data associated with the read row, expressed as a 4-component value, and advances the read row. | |
const LVecBase4i & | get_data4i () |
Returns the data associated with the read row, expressed as a 4-component value, and advances the read row. | |
bool | get_force () const |
Returns the value of the force flag. | |
LMatrix3 | get_matrix3 () |
Returns the 3-by-3 matrix associated with the read row and advances the read row. | |
LMatrix3d | get_matrix3d () |
Returns the 3-by-3 matrix associated with the read row and advances the read row. | |
LMatrix3f | get_matrix3f () |
Returns the 3-by-3 matrix associated with the read row and advances the read row. | |
LMatrix4 | get_matrix4 () |
Returns the 4-by-4 matrix associated with the read row and advances the read row. | |
LMatrix4d | get_matrix4d () |
Returns the 4-by-4 matrix associated with the read row and advances the read row. | |
LMatrix4f | get_matrix4f () |
Returns the 4-by-4 matrix associated with the read row and advances the read row. | |
int | get_read_row () const |
Returns the row index from which the data will be retrieved by the next call to get_data*(). | |
int | get_start_row () const |
Returns the row index at which the reader started. | |
size_t | get_stride () const |
Returns the per-row stride (bytes between consecutive rows) of the underlying vertex array. | |
const GeomVertexData * | get_vertex_data () const |
Returns the vertex data object that the reader is processing. | |
bool | has_column () const |
Returns true if a valid data type has been successfully set, or false if the data type does not exist (or if get_force() is false and the vertex data is nonresident). | |
bool | is_at_end () const |
Returns true if the reader is currently at the end of the list of vertices, false otherwise. | |
void | operator= (const GeomVertexReader ©) |
void | output (std::ostream &out) const |
bool | set_column (CPT_InternalName name) |
Sets up the reader to use the data type with the indicated name. | |
bool | set_column (int array, const GeomVertexColumn *column) |
Sets up the reader to use the indicated column description on the given array. | |
bool | set_column (int column) |
Sets up the reader to use the nth data type of the GeomVertexFormat, numbering from 0. | |
void | set_force (bool force) |
Sets the value of the force flag. | |
void | set_row (int row) |
Sets the start row to the indicated value. | |
void | set_row_unsafe (int row) |
Sets the start row to the indicated value, without internal checks. | |
Additional Inherited Members | |
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enum | AnimationType { AT_none , AT_panda , AT_hardware } |
enum | Contents { C_other , C_point , C_clip_point , C_vector , C_texcoord , C_color , C_index , C_morph_delta , C_matrix , C_normal } |
enum | GeomRendering { GR_indexed_point = 0x00001 , GR_indexed_other = 0x10000 , GR_indexed_bits = 0x10001 , GR_point = 0x00002 , GR_point_uniform_size = 0x00004 , GR_per_point_size = 0x00008 , GR_point_perspective = 0x00010 , GR_point_aspect_ratio = 0x00020 , GR_point_scale = 0x00040 , GR_point_rotate = 0x00080 , GR_point_sprite = 0x00100 , GR_point_sprite_tex_matrix = 0x00200 , GR_point_bits = 0x003fe , GR_triangle_strip = 0x00400 , GR_triangle_fan = 0x00800 , GR_line_strip = 0x01000 , GR_composite_bits = 0x01c00 , GR_strip_cut_index = 0x20000 , GR_flat_first_vertex = 0x02000 , GR_flat_last_vertex = 0x04000 , GR_shade_model_bits = 0x06000 , GR_render_mode_wireframe = 0x40000 , GR_render_mode_point = 0x80000 , GR_adjacency = 0x100000 } |
enum | NumericType { NT_uint8 , NT_uint16 , NT_uint32 , NT_packed_dcba , NT_packed_dabc , NT_float32 , NT_float64 , NT_stdfloat , NT_int8 , NT_int16 , NT_int32 , NT_packed_ufloat } |
enum | PrimitiveType { PT_none , PT_polygons , PT_lines , PT_points , PT_patches } |
enum | ShadeModel { SM_uniform , SM_smooth , SM_flat_first_vertex , SM_flat_last_vertex } |
enum | UsageHint { UH_client , UH_stream , UH_dynamic , UH_static , UH_unspecified } |
This object provides a high-level interface for quickly reading a sequence of numeric values from a vertex table.
It is particularly optimized for reading a single column of data values for a series of vertices, without changing columns between each number. Although you can also use one GeomVertexReader to read across the columns if it is convenient, by calling set_column() repeatedly at each vertex, it is faster to read down the columns, and to use a different GeomVertexReader for each column.
Note that a GeomVertexReader does not keep a reference count to the actual vertex data buffer (it grabs the current data buffer from the GeomVertexData whenever set_column() is called). This means that it is important not to keep a GeomVertexReader object around over a long period of time in which the data buffer is likely to be deallocated; it is intended for making a quick pass over the data in one session.
It also means that you should create any GeomVertexWriters *before* creating GeomVertexReaders on the same data, since the writer itself might cause the vertex buffer to be deallocated. Better yet, use a GeomVertexRewriter if you are going to create both of them anyway.
Definition at line 47 of file geomVertexReader.h.
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Constructs an invalid GeomVertexReader.
You must use the assignment operator to assign a valid GeomVertexReader to this object before you can use it.
Definition at line 19 of file geomVertexReader.I.
Referenced by clear().
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Constructs a new reader to process the vertices of the indicated data object.
Definition at line 31 of file geomVertexReader.I.
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Constructs a new reader to process the vertices of the indicated data object.
This flavor creates the reader specifically to process the named data type.
Definition at line 45 of file geomVertexReader.I.
References set_column().
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Constructs a new reader to process the vertices of the indicated array only.
Definition at line 60 of file geomVertexReader.I.
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Constructs a new reader to process the vertices of the indicated array only.
Definition at line 73 of file geomVertexReader.I.
References set_column().
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Constructs a new reader to process the vertices of the indicated data object.
This flavor creates the reader specifically to process the named data type.
Definition at line 88 of file geomVertexReader.I.
References GeomVertexFormat::get_array_with(), and GeomVertexFormat::get_column.
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Definition at line 105 of file geomVertexReader.I.
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Definition at line 144 of file geomVertexReader.I.
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Resets the GeomVertexReader to the initial state.
Definition at line 273 of file geomVertexReader.I.
References GeomVertexReader().
Referenced by GeomVertexRewriter::clear().
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Returns the array index containing the data type that the reader is working on.
Definition at line 292 of file geomVertexReader.I.
Referenced by GeomVertexRewriter::get_array().
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Returns the particular array object that the reader is currently processing.
Definition at line 161 of file geomVertexReader.I.
Referenced by GeomVertexRewriter::get_array_data().
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Returns the read handle to the array object that the read is currently processing.
This low-level call should be used with caution.
Definition at line 170 of file geomVertexReader.I.
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Returns the description of the data type that the reader is working on.
Definition at line 300 of file geomVertexReader.I.
Referenced by GeomVertexRewriter::get_column(), and GeomVertexRewriter::has_column().
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Returns the Thread pointer of the currently-executing thread, as passed to the constructor of this object.
Definition at line 189 of file geomVertexReader.I.
Referenced by GeomVertexRewriter::get_current_thread().
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Returns the data associated with the read row, expressed as a 1-component value, and advances the read row.
Definition at line 550 of file geomVertexReader.I.
References get_data1d(), and get_data1f().
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Returns the data associated with the read row, expressed as a 1-component value, and advances the read row.
Definition at line 460 of file geomVertexReader.I.
References has_column().
Referenced by get_data1().
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Returns the data associated with the read row, expressed as a 1-component value, and advances the read row.
Definition at line 370 of file geomVertexReader.I.
References has_column().
Referenced by get_data1().
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Returns the data associated with the read row, expressed as a 1-component value, and advances the read row.
Definition at line 630 of file geomVertexReader.I.
References has_column().
Referenced by BulletTriangleMesh::add_geom(), GeomPrimitive::calc_sphere_radius(), GeomPrimitive::calc_tight_bounds(), GeomVertexData::copy_from(), BulletSoftBodyNode::do_sync_b2p(), DXGraphicsStateGuardian9::draw_trifans(), DXGraphicsStateGuardian9::draw_tristrips(), GeomPrimitive::get_primitive_max_vertex(), GeomPrimitive::get_primitive_min_vertex(), and GeomPrimitive::offset_vertices().
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Returns the data associated with the read row, expressed as a 2-component value, and advances the read row.
Definition at line 563 of file geomVertexReader.I.
References get_data2d(), and get_data2f().
Referenced by SpriteParticleRenderer::add_from_node(), GeomTransformer::apply_texture_colors(), and MeshDrawer::geometry().
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Returns the data associated with the read row, expressed as a 2-component value, and advances the read row.
Definition at line 470 of file geomVertexReader.I.
References has_column().
Referenced by get_data2().
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Returns the data associated with the read row, expressed as a 2-component value, and advances the read row.
Definition at line 380 of file geomVertexReader.I.
References has_column().
Referenced by get_data2(), PhysxSoftBodyNode::set_from_geom(), and PhysxClothMeshDesc::set_from_node_path().
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Returns the data associated with the read row, expressed as a 2-component value, and advances the read row.
Definition at line 640 of file geomVertexReader.I.
References has_column().
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Returns the data associated with the read row, expressed as a 3-component value, and advances the read row.
Definition at line 576 of file geomVertexReader.I.
References get_data3d(), and get_data3f().
Referenced by SpriteParticleRenderer::add_from_node(), BulletTriangleMesh::add_geom(), GeomTransformer::apply_texture_colors(), GeomPrimitive::calc_sphere_radius(), GeomPrimitive::calc_tight_bounds(), MeshDrawer::geometry(), and PT().
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Returns the data associated with the read row, expressed as a 3-component value, and advances the read row.
Definition at line 480 of file geomVertexReader.I.
References has_column().
Referenced by get_data3().
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Returns the data associated with the read row, expressed as a 3-component value, and advances the read row.
Definition at line 390 of file geomVertexReader.I.
References has_column().
Referenced by get_data3(), PhysxSoftBodyNode::set_from_geom(), PhysxCcdSkeletonDesc::set_from_node_path(), PhysxClothMeshDesc::set_from_node_path(), PhysxConvexMeshDesc::set_from_node_path(), and PhysxTriangleMeshDesc::set_from_node_path().
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Returns the data associated with the read row, expressed as a 3-component value, and advances the read row.
Definition at line 650 of file geomVertexReader.I.
References has_column().
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Returns the data associated with the read row, expressed as a 4-component value, and advances the read row.
Definition at line 589 of file geomVertexReader.I.
References get_data4d(), and get_data4f().
Referenced by GeomTransformer::apply_texture_colors(), GeomVertexData::copy_from(), and GeomTransformer::transform_texcoords().
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Returns the data associated with the read row, expressed as a 4-component value, and advances the read row.
Definition at line 490 of file geomVertexReader.I.
References has_column().
Referenced by get_data4().
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Returns the data associated with the read row, expressed as a 4-component value, and advances the read row.
Definition at line 400 of file geomVertexReader.I.
References has_column().
Referenced by get_data4().
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Returns the data associated with the read row, expressed as a 4-component value, and advances the read row.
Definition at line 660 of file geomVertexReader.I.
References has_column().
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Returns the value of the force flag.
See set_force().
Definition at line 213 of file geomVertexReader.I.
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Returns the 3-by-3 matrix associated with the read row and advances the read row.
This is a special method that only works when the column in question contains a matrix of an appropriate size.
Definition at line 603 of file geomVertexReader.I.
References get_matrix3d(), and get_matrix3f().
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Returns the 3-by-3 matrix associated with the read row and advances the read row.
This is a special method that only works when the column in question contains a matrix of an appropriate size.
Definition at line 501 of file geomVertexReader.I.
References GeomVertexColumn::get_contents(), GeomVertexColumn::get_element_stride(), GeomVertexColumn::get_num_elements(), and has_column().
Referenced by get_matrix3().
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Returns the 3-by-3 matrix associated with the read row and advances the read row.
This is a special method that only works when the column in question contains a matrix of an appropriate size.
Definition at line 411 of file geomVertexReader.I.
References GeomVertexColumn::get_contents(), GeomVertexColumn::get_element_stride(), GeomVertexColumn::get_num_elements(), and has_column().
Referenced by get_matrix3().
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Returns the 4-by-4 matrix associated with the read row and advances the read row.
This is a special method that only works when the column in question contains a matrix of an appropriate size.
Definition at line 617 of file geomVertexReader.I.
References get_matrix4d(), and get_matrix4f().
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Returns the 4-by-4 matrix associated with the read row and advances the read row.
This is a special method that only works when the column in question contains a matrix of an appropriate size.
Definition at line 525 of file geomVertexReader.I.
References GeomVertexColumn::get_contents(), GeomVertexColumn::get_element_stride(), GeomVertexColumn::get_num_elements(), and has_column().
Referenced by get_matrix4().
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Returns the 4-by-4 matrix associated with the read row and advances the read row.
This is a special method that only works when the column in question contains a matrix of an appropriate size.
Definition at line 435 of file geomVertexReader.I.
References GeomVertexColumn::get_contents(), GeomVertexColumn::get_element_stride(), GeomVertexColumn::get_num_elements(), and has_column().
Referenced by get_matrix4().
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Returns the row index from which the data will be retrieved by the next call to get_data*().
Definition at line 351 of file geomVertexReader.I.
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Returns the row index at which the reader started.
It will return to this row if you reset the current column.
Definition at line 342 of file geomVertexReader.I.
Referenced by GeomVertexRewriter::get_start_row().
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Returns the per-row stride (bytes between consecutive rows) of the underlying vertex array.
This low-level information is normally not needed to use the GeomVertexReader directly.
Definition at line 180 of file geomVertexReader.I.
Referenced by GeomVertexRewriter::get_stride().
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Returns the vertex data object that the reader is processing.
This may return NULL if the reader was constructed with just an array pointer.
Definition at line 152 of file geomVertexReader.I.
Referenced by GeomVertexRewriter::get_vertex_data().
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Returns true if a valid data type has been successfully set, or false if the data type does not exist (or if get_force() is false and the vertex data is nonresident).
Definition at line 283 of file geomVertexReader.I.
Referenced by SpriteParticleRenderer::add_from_node(), GeomPrimitive::calc_sphere_radius(), GeomPrimitive::calc_tight_bounds(), get_data1d(), get_data1f(), get_data1i(), get_data2d(), get_data2f(), get_data2i(), get_data3d(), get_data3f(), get_data3i(), get_data4d(), get_data4f(), get_data4i(), get_matrix3d(), get_matrix3f(), get_matrix4d(), get_matrix4f(), set_row(), and set_row_unsafe().
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Returns true if the reader is currently at the end of the list of vertices, false otherwise.
If this is true, another call to get_data*() will result in a crash.
Definition at line 361 of file geomVertexReader.I.
Referenced by BulletTriangleMesh::add_geom(), GeomTransformer::apply_texture_colors(), GeomPrimitive::calc_sphere_radius(), GeomPrimitive::calc_tight_bounds(), GeomVertexData::copy_from(), GeomVertexRewriter::is_at_end(), PhysxSoftBodyNode::set_from_geom(), PhysxCcdSkeletonDesc::set_from_node_path(), PhysxClothMeshDesc::set_from_node_path(), PhysxConvexMeshDesc::set_from_node_path(), PhysxTriangleMeshDesc::set_from_node_path(), and GeomTransformer::transform_texcoords().
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Definition at line 125 of file geomVertexReader.I.
void GeomVertexReader::output | ( | std::ostream & | out | ) | const |
Definition at line 61 of file geomVertexReader.cxx.
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Sets up the reader to use the data type with the indicated name.
This also resets the read row number to the start row (the same value passed to a previous call to set_row(), or 0 if set_row() was never called.)
The return value is true if the data type is valid, false otherwise.
Definition at line 253 of file geomVertexReader.I.
References GeomVertexFormat::get_array_with(), and GeomVertexFormat::get_column.
bool GeomVertexReader::set_column | ( | int | array, |
const GeomVertexColumn * | column ) |
Sets up the reader to use the indicated column description on the given array.
This also resets the current read row number to the start row (the same value passed to a previous call to set_row(), or 0 if set_row() was never called.)
The return value is true if the data type is valid, false otherwise.
Definition at line 32 of file geomVertexReader.cxx.
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Sets up the reader to use the nth data type of the GeomVertexFormat, numbering from 0.
This also resets the read row number to the start row (the same value passed to a previous call to set_row(), or 0 if set_row() was never called.)
The return value is true if the data type is valid, false otherwise.
Definition at line 228 of file geomVertexReader.I.
References GeomVertexFormat::get_array_with(), and GeomVertexFormat::get_column.
Referenced by GeomVertexReader(), GeomVertexReader(), GeomVertexData::copy_from(), GeomVertexRewriter::set_column(), GeomVertexRewriter::set_column(), and GeomVertexRewriter::set_column().
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Sets the value of the force flag.
When this is true (the default), vertex data will be paged in from disk if necessary. When this is false, the GeomVertexData will simply return a failure code when attempting to read vertex data that is not resident (but will put it on the queue to become resident later).
Normally, vertex data is always resident, so this will not be an issue. It is only possible for vertex data to be nonresident if you have enabled vertex paging via the GeomVertexArrayData and VertexDataPage interfaces.
Definition at line 205 of file geomVertexReader.I.
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Sets the start row to the indicated value.
The reader will begin reading from the indicated row; each subsequent get_data*() call will return the data from the subsequent row. If set_column() is called, the reader will return to this row.
Definition at line 329 of file geomVertexReader.I.
References has_column().
Referenced by GeomPrimitive::calc_tight_bounds(), and GeomVertexRewriter::set_row().
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Sets the start row to the indicated value, without internal checks.
This is the same as set_row(), but it does not check for the possibility that the array has been reallocated internally for some reason; use only when you are confident that the array is unchanged and you really need every bit of available performance.
Definition at line 315 of file geomVertexReader.I.
References has_column().
Referenced by SpriteParticleRenderer::add_from_node(), GeomPrimitive::calc_sphere_radius(), GeomPrimitive::calc_tight_bounds(), MeshDrawer::geometry(), GeomPrimitive::get_primitive_max_vertex(), GeomPrimitive::get_primitive_min_vertex(), GeomPrimitive::offset_vertices(), and GeomVertexRewriter::set_row_unsafe().