cgv::render::vertex_buffer Class Reference
#include <vertex_buffer.h>
Inheritance diagram for cgv::render::vertex_buffer:
Public Member Functions | |
| vertex_buffer (VertexBufferType _type=VBT_VERTICES, VertexBufferUsage _usage=VBU_STATIC_DRAW) | |
| construct from description of component format, where the default format specifies a color buffer with alpha channel | |
| ~vertex_buffer () | |
| calls the destruct method if necessary | |
| void | bind (context &ctx, VertexBufferType _type=VBT_UNDEF) const |
| bind buffer potentially overwriting buffer type | |
| bool | create (const context &ctx, size_t size_in_bytes) |
create empty vertex buffer of size size given in bytes | |
| template<typename T > | |
| bool | create (const context &ctx, const T &array) |
create vertex buffer and copy data from CPU array array into buffer memory | |
| template<typename T > | |
| bool | create (const context &ctx, const T *array_ptr, size_t nr_elements) |
create vertex buffer and copy data from CPU array array_ptr into buffer memory | |
| bool | is_created () const |
| check whether the vertex buffer has been created | |
| size_t | get_size_in_bytes () const |
| return size in bytes | |
| template<typename T > | |
| bool | replace (const context &ctx, size_t buffer_offset_in_bytes, const T *array_ptr, size_t nr_elements) |
replace part (starting at byte offset buffer_offset_in_bytes) or whole vertex buffer content from nr_elements of CPU array array_ptr | |
| bool | copy (const context &ctx, size_t src_offset_in_bytes, size_t size_in_bytes, vertex_buffer &dst, size_t dst_offset_in_bytes) const |
copy size_in_bytes number bytes from this vertex buffer starting at byte offset start_offset_in_bytes to vertex buffer dst starting at offest dst_offset_in_bytes | |
| template<typename T > | |
| bool | copy (const context &ctx, size_t src_offset_in_bytes, T *array_ptr, size_t nr_elements) |
copy nr_elements array elements from vertex buffer starting at byte offset start_offset_in_bytes to CPU array array_ptr | |
| void | destruct (const context &ctx) |
| destruct the render buffer | |
| void | put_id_void (void *ptr) const |
| template<typename T > | |
| void | put_id (T &id) const |
| cast the refence to rendering api specific representation of component id to the specified type | |
Public Attributes | |
| VertexBufferType | type |
| buffer type defaults to VBT_VERTICES | |
| VertexBufferUsage | usage |
| usage defaults to VBU_STATIC_DRAW | |
| const context * | ctx_ptr |
| keep pointer to my context | |
| std::string | last_error |
| a string that contains the last error | |
Detailed Description
a vertex buffer is an unstructured memory block on the GPU.
Member Function Documentation
◆ put_id_void()
|
inherited |
copy the rendering api specific id the component to the memory location of the given pointer. For opengl this the passed pointer should be of type GLint or GLuint.
The documentation for this class was generated from the following files:
- D:/develop/projects/git/cgv/cgv/render/vertex_buffer.h
- D:/develop/projects/git/cgv/cgv/render/vertex_buffer.cxx
