cgv::render::gl::gl_context Class Reference

implementation of the context API for the OpenGL API excluding methods for font selection, redraw and initiation of render passes. More...

#include <gl_context.h>

Inheritance diagram for cgv::render::gl::gl_context:

Public Member Functions
	gl_context ()
	construct context and attach signals
bool	configure_gl ()
	ensure that glew is initialized, define lighting mode, viewing pyramid and the rendering mode and return whether gl configuration was successful
void	resize_gl ()
void	set_bg_color (vec4 rgba) override
	set a user defined background color
void	set_bg_depth (float d) override
	set a user defined background depth value
void	set_bg_stencil (int s) override
	set a user defined background stencil value
void	set_bg_accum_color (vec4 rgba) override
	set a user defined background color for the accumulation buffer
void	clear_background (bool color_flag, bool depth_flag, bool stencil_flag=false, bool accum_flag=false) override
	clear the buffer contents of the flagged buffers to the set background colors
float	get_info_font_size () const
	return info font size
cgv::media::font::font_face_ptr	get_info_font_face () const
	return info font face and ensure that it is created
float	get_current_font_size () const override
	overwrite function to return info font size in case no font is currently selected
media::font::font_face_ptr	get_current_font_face () const override
	overwrite function to return info font face in case no font is currently selected
void	perform_screen_shot () override
RenderAPI	get_render_api () const override
	return the used rendering API
void	init_render_pass () override
void	finish_render_pass () override
light and materials management
void	set_color (const rgba &clr) override
	set the current color
void	set_material (const cgv::media::illum::surface_material &mat) override
	set the current material
void	enable_material (textured_material &mat) override
	enable a material with textures
void	disable_material (textured_material &mat) override
	disable a material with textures
shader_program &	ref_default_shader_program (bool texture_support=false) override
	return a reference to a shader program used to render without illumination
shader_program &	ref_surface_shader_program (bool texture_support=false) override
	return a reference to the default shader program used to render surfaces
void	enumerate_program_uniforms (shader_program &prog, std::vector< std::string > &names, std::vector< int > *locations_ptr=0, std::vector< int > *sizes_ptr=0, std::vector< int > *types_ptr=0, bool show=false) const override
	get list of program uniforms
void	enumerate_program_attributes (shader_program &prog, std::vector< std::string > &names, std::vector< int > *locations_ptr=0, std::vector< int > *sizes_ptr=0, std::vector< int > *types_ptr=0, bool show=false) const override
	get list of program attributes
void	on_lights_changed () override
	helper function to send light update events
void	tesselate_arrow (double length=1, double aspect=0.1, double rel_tip_radius=2.0, double tip_aspect=0.3, int res=25, bool edges=false) override
	tesselate an arrow from the origin in z-direction
void	tesselate_arrow (const dvec3 &start, const dvec3 &end, double aspect=0.1f, double rel_tip_radius=2.0f, double tip_aspect=0.3f, int res=25, bool edges=false) override
	define length and direction from start and end point and draw an arrow
void	draw_light_source (const cgv::media::illum::light_source &l, float intensity_scale, float light_scale) override
	draw a light source with an emissive material
void	announce_external_viewport_change (ivec4 &cgv_viewport_storage) override
	announce an external viewport change performed with rendering API to the cgv framework providing space to temporarily store viewport of cgv framework
void	recover_from_external_viewport_change (const ivec4 &cgv_viewport_storage) override
	restore cgv viewport to the state before the external change
void	announce_external_frame_buffer_change (void *&cgv_fbo_storage) override
	announce an external frame buffer change performed with rendering API to the cgv framework providing space to temporarily store frame buffer of cgv framework
void	recover_from_external_frame_buffer_change (void *cgv_fbo_storage) override
	restore cgv frame buffer to the state before the external change
text output
void	push_pixel_coords () override
	use this to push transformation matrices on the stack such that x and y coordinates correspond to window coordinates
void	pop_pixel_coords () override
	pop previously changed transformation matrices
virtual bool	read_frame_buffer (data::data_view &dv, unsigned int x=0, unsigned int y=0, FrameBufferType buffer_type=FB_BACK, cgv::type::info::TypeId type=type::info::TI_UINT8, data::ComponentFormat cf=data::CF_RGB, int w=-1, int h=-1) override
	implement according to specification in context class
tesselation
bool	prepare_attributes (std::vector< vec3 > &P, std::vector< vec3 > &N, std::vector< vec2 > &T, unsigned nr_vertices, const float *vertices, const float *normals, const float *tex_coords, const int *vertex_indices, const int *normal_indices, const int *tex_coord_indices, bool flip_normals) const
	helper function to prepare attribute arrays
bool	release_attributes (const float *normals, const float *tex_coords, const int *normal_indices, const int *tex_coord_indices) const
	helper function to disable attribute arrays
void	draw_edges_of_faces (const float *vertices, const float *normals, const float *tex_coords, const int *vertex_indices, const int *normal_indices, const int *tex_coord_indices, int nr_faces, int face_degree, bool flip_normals=false) const override
	pass geometry of given faces to current shader program and generate draw calls to render lines for the edges
void	draw_edges_of_strip_or_fan (const float *vertices, const float *normals, const float *tex_coords, const int *vertex_indices, const int *normal_indices, const int *tex_coord_indices, int nr_faces, int face_degree, bool is_fan, bool flip_normals=false) const override
	pass geometry of given strip or fan to current shader program and generate draw calls to render lines for the edges
void	draw_faces (const float *vertices, const float *normals, const float *tex_coords, const int *vertex_indices, const int *normal_indices, const int *tex_coord_indices, int nr_faces, int face_degree, bool flip_normals) const override
	tesselate with independent faces
void	draw_strip_or_fan (const float *vertices, const float *normals, const float *tex_coords, const int *vertex_indices, const int *normal_indices, const int *tex_coord_indices, int nr_faces, int face_degree, bool is_fan, bool flip_normals) const override
	tesselate with one face strip
render state
void	set_depth_test_state (DepthTestState state) override
	set the depth test state
void	set_depth_func (CompareFunction func) override
	set the depth test function
void	enable_depth_test () override
	enable the depth test
void	disable_depth_test () override
	disable the depth test
void	set_cull_state (CullingMode culling_mode) override
	set the culling state
void	set_blend_state (BlendState state) override
	set the complete blend state
void	set_blend_func (BlendFunction src_factor, BlendFunction dst_factor) override
	set the blend function
void	set_blend_func_separate (BlendFunction src_color_factor, BlendFunction dst_color_factor, BlendFunction src_alpha_factor, BlendFunction dst_alpha_factor) override
	set the blend function separately for color and alpha
void	enable_blending () override
	enable blending
void	disable_blending () override
	disable blending
void	set_buffer_mask (BufferMask mask) override
	set the buffer mask for depth and color buffers
void	set_depth_mask (bool flag) override
	set the depth buffer mask
void	set_color_mask (bvec4 flags) override
	set the color buffer mask
Public Member Functions inherited from cgv::render::context
shader_program_base *	get_current_program () const
	check for current program, prepare it for rendering and return pointer to it
void	enable_shader_file_cache ()
	enable the usage of the shader file caches
void	disable_shader_file_cache ()
	disable the usage of the shader file caches
bool	is_shader_file_cache_enabled () const
	whether the shader file caches are enabled
	context ()
	init the cursor position to (0,0)
virtual	~context ()
	virtual destructor
virtual void	error (const std::string &message, const render_component *rc=0) const
	error handling
virtual GPUVendorID	get_gpu_vendor_id () const
	device information
virtual void	configure_new_child (cgv::base::base_ptr child)
	helper method to integrate a new child
unsigned	get_render_pass_recursion_depth () const
	return current render pass recursion depth
virtual RenderPass	get_render_pass () const
	return the current render pass
virtual RenderPassFlags	get_render_pass_flags () const
	return the current render pass flags
virtual void *	get_render_pass_user_data () const
	return the current render pass user data
virtual RenderPassFlags	get_default_render_pass_flags () const
	return the default render pass flags
virtual void	set_default_render_pass_flags (RenderPassFlags)
	return the default render pass flags
virtual void	render_pass (RenderPass render_pass=RP_MAIN, RenderPassFlags render_pass_flags=RPF_ALL, void *user_data=0)
	perform the given render task
void	set_debug_render_passes (bool _debug)
	set flag whether to debug render passes
bool	get_debug_render_passes () const
	check whether render passes are debugged
virtual bool	in_render_process () const =0
	return whether the context is currently in process of rendering
virtual bool	is_created () const =0
	return whether the context is created
virtual bool	is_current () const =0
	return whether the context is current
virtual bool	recreate_context ()
	recreate context based on current context config settings
virtual bool	make_current () const =0
	make the current context current if possible
virtual void	clear_current () const =0
	clear the current context, typically used in multi-threaded rendering to allow usage of context in several threads
virtual void	attach_alpha_buffer (bool attach=true)=0
	attach or detach (attach=false) an alpha buffer to the current frame buffer if not present
virtual void	attach_depth_buffer (bool attach=true)=0
	attach or detach (attach=false) depth buffer to the current frame buffer if not present
virtual void	attach_stencil_buffer (bool attach=true)=0
	attach or detach (attach=false) stencil buffer to the current frame buffer if not present
virtual bool	is_stereo_buffer_supported () const =0
	return whether the graphics card supports stereo buffer mode
virtual void	attach_stereo_buffer (bool attach=true)=0
	attach or detach (attach=false) stereo buffer to the current frame buffer if not present
virtual void	attach_accumulation_buffer (bool attach=true)=0
	attach or detach (attach=false) accumulation buffer to the current frame buffer if not present
virtual void	attach_multi_sample_buffer (bool attach=true)=0
	attach or detach (attach=false) multi sample buffer to the current frame buffer if not present
virtual unsigned int	get_width () const =0
	return the width of the window
virtual unsigned int	get_height () const =0
	return the height of the window
virtual void	resize (unsigned int width, unsigned int height)=0
	resize the context to the given dimensions
bool	write_frame_buffer_to_image (const std::string &file_name, data::ComponentFormat cf=data::CF_RGB, FrameBufferType buffer_type=FB_BACK, unsigned int x=0, unsigned int y=0, int w=-1, int h=-1, float depth_offset=0.9f, float depth_scale=10.0f)
	write the content of the frame buffer to an image file.
void	push_bg_color ()
	push a copy of the current background color onto the stack
void	pop_bg_color ()
	pop the top of the current background color from the stack
void	set_bg_color (float r, float g, float b, float a)
	set a user defined background color
vec4	get_bg_color () const
	return the current color value for clearing the background
void	put_bg_color (float *rgba) const
	copy the current background rgba color into the given float array
void	set_bg_alpha (float a)
	set a user defined background alpha value
float	get_bg_alpha () const
	return the current alpha value for clearing the background
void	set_bg_clr_idx (unsigned int idx)
	set an indexed background color
unsigned int	get_bg_clr_idx () const
	return the current index of the background color
void	push_bg_depth ()
	push a copy of the current background depth value onto the stack
void	pop_bg_depth ()
	pop the top of the current background depth value from the stack
float	get_bg_depth () const
	return the current depth value for clearing the background
void	push_bg_stencil ()
	push a copy of the current background stencil value onto the stack
void	pop_bg_stencil ()
	pop the top of the current background stencil value from the stack
int	get_bg_stencil () const
	return the current stencil value for clearing the background
void	push_bg_accum_color ()
	push a copy of the current background accumulation color onto the stack
void	pop_bg_accum_color ()
	pop the top of the current background accumulation color from the stack
void	set_bg_accum_color (float r, float g, float b, float a)
	set a user defined background color for the accumulation buffer
vec4	get_bg_accum_color () const
	return the current color value for clearing the accumulation buffer
void	put_bg_accum_color (float *rgba) const
	copy the current accumulation background rgba color into the given float array
void	set_bg_accum_alpha (float a)
	set a user defined background alpha value for the accumulation buffer
float	get_bg_accum_alpha () const
	return the current alpha value for clearing the accumulation buffer
virtual void	post_redraw ()=0
	the context will be redrawn when the system is idle again
virtual void	force_redraw ()=0
	the context will be redrawn right now. This method cannot be called inside the following methods of a drawable: init, init_frame, draw, finish_draw
virtual void	enable_font_face (media::font::font_face_ptr font_face, float font_size)
	enable the given font face with the given size in pixels
virtual void	enable_phong_shading ()
	enable phong shading with the help of a shader (enabled by default)
virtual void	disable_phong_shading ()
virtual void	enable_material (const cgv::media::illum::phong_material &mat=cgv::media::illum::default_material(), MaterialSide ms=MS_FRONT_AND_BACK, float alpha=1)
virtual void	disable_material (const cgv::media::illum::phong_material &mat=cgv::media::illum::default_material())
virtual void	enable_material (const textured_material &mat, MaterialSide ms=MS_FRONT_AND_BACK, float alpha=1)
void	set_gamma (float _gamma)
	set the current per channel gamma values to single value
virtual void	set_gamma3 (const vec3 &_gamma3)
	set the current per channel gamma values to single value
float	get_gamma () const
	query current gamma computed as average over gamma3 per channel values
vec3	get_gamma3 () const
	query current per color channel gamma
virtual void	enable_sRGB_framebuffer (bool do_enable=true)
	enable or disable sRGB framebuffer
bool	sRGB_framebuffer_enabled ()
	check whether sRGB framebuffer is enabled
const rgba &	get_color () const
	return current color
virtual void	set_color (const rgb &clr, float opacity=1.0f)
	set the current color
const cgv::media::illum::surface_material *	get_current_material () const
	return pointer to current material or nullptr if no current material is available
virtual void	set_textured_material (const textured_material &mat)
	set the current material
void	set_current_gamma (shader_program &prog) const
	set the shader program gamma values
void	set_current_view (shader_program &prog, bool modelview_deps=true, bool projection_deps=true) const
	set the shader program view matrices to the currently enabled view matrices
void	set_current_material (shader_program &prog) const
	set the shader program material to the currently enabled material
void	set_current_lights (shader_program &prog) const
	set the shader program lights to the currently enabled lights
vec3	get_light_eye_position (const cgv::media::illum::light_source &light, bool place_now) const
	helper function to place lights
vec3	get_light_eye_spot_direction (const cgv::media::illum::light_source &light, bool place_now) const
	helper function to place spot lights
void *	enable_light (const cgv::media::illum::light_source &light)
void	disable_light (void *handle)
unsigned	get_max_nr_lights () const
size_t	get_nr_light_sources () const
	return the number of light sources
void *	add_light_source (const cgv::media::illum::light_source &light, bool enabled=true, bool place_now=false)
	add a new light source, enable it if enable is true and place it relative to current model view transformation if place_now is true; return handle to light source
bool	remove_light_source (void *handle)
	remove a light source by handle and whether it existed
const cgv::media::illum::light_source &	get_light_source (void *handle) const
	read access to light source
const light_source_status &	get_light_source_status (void *handle) const
	read access to light source status
void	set_light_source (void *handle, const cgv::media::illum::light_source &light, bool place_now=true)
	set light source newly
void	place_light_source (void *handle)
	place the given light source relative to current model viel transformation
virtual unsigned	get_max_nr_enabled_light_sources () const
	return maximum number of light sources, that can be enabled in parallel
size_t	get_nr_enabled_light_sources () const
	return the number of light sources
void *	get_enabled_light_source_handle (size_t i) const
	access to handle of i-th light source
bool	is_light_source_enabled (void *handle)
	check whether light source is enabled
bool	enable_light_source (void *handle)
	enable a given light source and return whether there existed a light source with given handle
bool	disable_light_source (void *handle)
	disable a given light source and return whether there existed a light source with given handle
size_t	get_nr_default_light_sources () const
	return number of default light sources
const cgv::media::illum::light_source &	get_default_light_source (size_t i) const
	return i-th default light source
void	set_default_light_source (size_t i, const cgv::media::illum::light_source &ls)
	set i-th default light source
virtual std::ostream &	output_stream ()
	returns an output stream whose output is printed at the current cursor location, which is managed by the context.
virtual void	set_cursor (int x, int y)
	flush the output_stream and set a new cursor position given in opengl coordinates with (0,0) in lower left corner
virtual void	get_cursor (int &x, int &y) const
	return current cursor location in opengl coordinates with (0,0) in lower left corner
virtual void	put_cursor_coords (const vecn &p, int &x, int &y) const
	transform point p in current world coordinates into opengl coordinates with (0,0) in lower left corner and put x and y coordinates into the passed variables
virtual void	set_cursor (const vecn &pos, const std::string &text="", TextAlignment ta=TA_BOTTOM_LEFT, int x_offset=0, int y_offset=0)
	flush output_stream and set the current text position from a 3D or 4D location in current world coordinates.
void	tesselate_unit_square (bool flip_normals=false, bool edges=false)
	tesselate a unit square in the xy-plane with texture coordinates
void	tesselate_unit_cube (bool flip_normals=false, bool edges=false)
	tesselate a unit cube with extent from [-1,-1,-1] to [1,1,1] with face normals that can be flipped
virtual void	tesselate_box (const cgv::media::axis_aligned_box< double, 3 > &B, bool flip_normals, bool edges=false) const
	tesselate an axis aligned box
void	tesselate_unit_prism (bool flip_normals=false, bool edges=false)
	tesselate a prism
void	tesselate_unit_disk (int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a circular disk of radius 1
void	tesselate_unit_cone (int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a cone of radius 1
void	tesselate_unit_cylinder (int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a cylinder of radius 1
void	tesselate_unit_sphere (int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a sphere of radius 1
void	tesselate_unit_tetrahedron (bool flip_normals=false, bool edges=false)
	tesselate a tetrahedron
void	tesselate_unit_octahedron (bool flip_normals=false, bool edges=false)
	tesselate a octahedron
void	tesselate_unit_dodecahedron (bool flip_normals=false, bool edges=false)
	tesselate a dodecahedron
void	tesselate_unit_icosahedron (bool flip_normals=false, bool edges=false)
	tesselate an icosahedron
void	tesselate_unit_torus (float minor_radius=0.2f, int resolution=25, bool flip_normals=false, bool edges=false)
	tesselate a torus with major radius of one and given minor radius
void	push_depth_test_state ()
	push a copy of the current depth test state onto the stack saved attributes: depth test enablement, depth test function
void	pop_depth_test_state ()
	pop the top of the current depth test state from the stack
DepthTestState	get_depth_test_state () const
	return the current depth test state
void	push_cull_state ()
	push a copy of the current culling state onto the stack saved attributes: cull face enablement, cull face
void	pop_cull_state ()
	pop the top of the current culling state from the stack
CullingMode	get_cull_state () const
	return the current culling state
void	push_blend_state ()
	push a copy of the current blend state onto the stack saved attributes: blend enablement, color and alpha source and destinatin functions
void	pop_blend_state ()
	pop the top of the current culling state from the stack
BlendState	get_blend_state () const
	return the current blend state
void	set_blend_func_front_to_back ()
	set the default blend function for front to back blending
void	set_blend_func_back_to_front ()
	set the default blend function for back to front blending
void	push_buffer_mask ()
	push a copy of the current buffer mask onto the stack saved attributes: depth mask, color mask
void	pop_buffer_mask ()
	pop the top of the current buffer mask from the stack
BufferMask	get_buffer_mask () const
	return the current buffer mask
bool	get_depth_mask () const
	get the depth buffer mask
bvec4	get_color_mask () const
	get the color buffer mask
dmatn	get_V () const
void	set_V (const dmatn &V) const
void	push_V ()
void	pop_V ()
dmatn	get_P () const
void	set_P (const dmatn &P) const
void	push_P ()
void	pop_P ()
dmatn	get_D () const
dmatn	get_DPV () const
virtual void	mul_modelview_matrix (const dmat4 &MV)
	multiply given matrix from right to current modelview matrix
void	push_modelview_matrix ()
	push the current viewing matrix onto a matrix stack for viewing matrices.
void	pop_modelview_matrix ()
	see push_V for an explanation
virtual void	mul_projection_matrix (const dmat4 &P)
	multiply given matrix from right to current projection matrix
void	push_projection_matrix ()
	same as push_V but for the projection matrix - a different matrix stack is used.
void	pop_projection_matrix ()
	see push_P for an explanation
void	push_window_transformation_array ()
	push a copy of the current viewport and depth range arrays defining the window transformations
const std::vector< window_transformation > &	get_window_transformation_array () const
	return the current window transformation array
dmat4	get_window_matrix (unsigned array_index=0) const
	return a homogeneous 4x4 matrix to transform clip to window coordinates
dmat4	get_modelview_projection_window_matrix (unsigned array_index=0) const
	return a homogeneous 4x4 matrix to transfrom from model to window coordinates, i.e. the product of modelview, projection and device matrix in reversed order (window_matrix*projection_matrix*modelview_matrix)
vec3	get_model_point (int x_window, int y_window) const
	compute model space 3D point from the given opengl pixel location (window location)
vec3	get_model_point (int x_window, int y_window, double z_window) const
	compute model space 3D point from the given opengl pixel location (window location)
vec3	get_model_point (int x_window, int y_window, const dmat4 &modelview_projection_window_matrix) const
	compute model space 3D point from the given opengl pixel location (window location) and modelview_projection_window matrix
vec3	get_model_point (const vec3 &p_window) const
	compute model space 3D point from the given window space point
dmat4	get_device_matrix () const
	return homogeneous 4x4 projection matrix, which transforms from clip to device space
dmat4	get_modelview_projection_device_matrix () const
	return matrix to transfrom from model to device coordinates, i.e. the product of modelview, projection and device matrix in reversed order (device_matrix*projection_matrix*modelview_matrix)
double	get_z_D (int x_D, int y_D) const
	read the window z-coordinate from the z-buffer for the given device x- and y-coordinates
vec3	get_point_W (int x_D, int y_D) const
	compute the location in world space of a device x/y-location. For this the device point is extended with the device z-coordinate currently stored in the displayed depth buffer.
vec3	get_point_W (int x_D, int y_D, const dmat4 &MPD) const
	compute the location in world space of a device x/y-location by inversion of the given transformation from world to device space. For this the device point is extended with the device z-coordinate currently stored in the displayed depth buffer.
vec3	get_point_W (int x_D, int y_D, double z_D) const
	compute the location in world space of a device point. For this the current world to device transformation is inverted.
vec3	get_point_W (int x_D, int y_D, double z_D, const dmat4 &MPD) const
	compute the location in world space of a device point by inversion of the given world to device transformation.
vec3	get_point_W (const vec3 &p_D) const
	compute a the location in world space of a device point.
vec3	get_point_W (const vec3 &p_D, const dmat4 &MPD) const
	compute a the location in world space of a device point.
Public Member Functions inherited from cgv::render::context_config
	context_config ()
	construct config with default parameters
bool	self_reflect (cgv::reflect::reflection_handler &srh)
	reflect the shader_path member

Protected Member Functions
void	ensure_configured () const
void	destruct_render_objects () override
void	put_id (void *handle, void *ptr) const override
void	draw_elements_void (GLenum mode, size_t count, GLenum type, size_t type_size, const void *indices) const
template<typename T >
void	draw_elements (GLenum mode, size_t count, const T *indices) const
cgv::data::component_format	texture_find_best_format (const cgv::data::component_format &cf, render_component &rc, const std::vector< cgv::data::data_view > *palettes=0) const override
bool	texture_create (texture_base &tb, cgv::data::data_format &df) const override
bool	texture_create (texture_base &tb, cgv::data::data_format &target_format, const cgv::data::const_data_view &data, int level, int cube_side=-1, int num_array_layers=0, const std::vector< cgv::data::data_view > *palettes=0) const override
bool	texture_create_from_buffer (texture_base &tb, cgv::data::data_format &df, int x, int y, int level) const override
bool	texture_replace (texture_base &tb, int x, int y, int z_or_cube_side, const cgv::data::const_data_view &data, int level, const std::vector< cgv::data::data_view > *palettes=0) const override
bool	texture_replace_from_buffer (texture_base &tb, int x, int y, int z_or_cube_side, int x_buffer, int y_buffer, unsigned int width, unsigned int height, int level) const override
bool	texture_create_mipmaps (texture_base &tb, cgv::data::data_format &df) const override
bool	texture_generate_mipmaps (texture_base &tb, unsigned int dim) const override
bool	texture_destruct (texture_base &tb) const override
bool	texture_set_state (const texture_base &tb) const override
bool	texture_enable (texture_base &tb, int tex_unit, unsigned int nr_dims) const override
bool	texture_disable (texture_base &tb, int tex_unit, unsigned int nr_dims) const override
bool	texture_bind_as_image (texture_base &tb, int tex_unit, int level, bool bind_array, int layer, AccessType access) const override
bool	render_buffer_create (render_buffer_base &rc, cgv::data::component_format &cf, int &_width, int &_height) const override
bool	render_buffer_destruct (render_buffer_base &rc) const override
bool	frame_buffer_create (frame_buffer_base &fbb) const override
bool	frame_buffer_attach (frame_buffer_base &fbb, const render_buffer_base &rb, bool is_depth, int i) const override
bool	frame_buffer_attach (frame_buffer_base &fbb, const texture_base &t, bool is_depth, int level, int i, int z) const override
	attach 2d texture to depth buffer if it is a depth texture, to stencil if it is a stencil texture or to the i-th color attachment if it is a color texture
bool	frame_buffer_is_complete (const frame_buffer_base &fbb) const override
	check for completeness, if not complete, get the reason in last_error
bool	frame_buffer_enable (frame_buffer_base &fbb) override
bool	frame_buffer_disable (frame_buffer_base &fbb) override
	disable the framebuffer object
bool	frame_buffer_destruct (frame_buffer_base &fbb) const override
void	frame_buffer_blit (const frame_buffer_base *src_fbb_ptr, const ivec4 &S, frame_buffer_base *dst_fbb_ptr, const ivec4 &_D, BufferTypeBits btbs, bool interpolate) const override
int	frame_buffer_get_max_nr_color_attachments () const override
int	frame_buffer_get_max_nr_draw_buffers () const override
bool	shader_code_create (render_component &sc, ShaderType st, const std::string &source) const override
bool	shader_code_compile (render_component &sc) const override
void	shader_code_destruct (render_component &sc) const override
bool	shader_program_create (shader_program_base &spb) const override
void	shader_program_attach (shader_program_base &spb, const render_component &sc) const override
bool	shader_program_link (shader_program_base &spb) const override
bool	shader_program_set_state (shader_program_base &spb) const override
bool	shader_program_enable (shader_program_base &spb) override
bool	shader_program_disable (shader_program_base &spb) override
void	shader_program_detach (shader_program_base &spb, const render_component &sc) const override
bool	shader_program_destruct (shader_program_base &spb) const override
int	get_uniform_location (const shader_program_base &spb, const std::string &name) const override
bool	set_uniform_void (shader_program_base &spb, int loc, type_descriptor value_type, const void *value_ptr) const override
bool	set_uniform_array_void (shader_program_base &spb, int loc, type_descriptor value_type, const void *value_ptr, size_t nr_elements) const override
int	get_attribute_location (const shader_program_base &spb, const std::string &name) const override
bool	set_attribute_void (shader_program_base &spb, int loc, type_descriptor value_type, const void *value_ptr) const override
bool	attribute_array_binding_create (attribute_array_binding_base &aab) const override
bool	attribute_array_binding_destruct (attribute_array_binding_base &aab)
bool	attribute_array_binding_enable (attribute_array_binding_base &aab) override
bool	attribute_array_binding_disable (attribute_array_binding_base &aab) override
bool	set_attribute_array_void (attribute_array_binding_base *aab, int loc, type_descriptor value_type, const vertex_buffer_base *vbb, const void *ptr, size_t nr_elements, unsigned stride_in_bytes) const override
bool	set_element_array (attribute_array_binding_base *aab, const vertex_buffer_base *vbb) const override
bool	enable_attribute_array (attribute_array_binding_base *aab, int loc, bool do_enable) const override
bool	is_attribute_array_enabled (const attribute_array_binding_base *aab, int loc) const override
bool	vertex_buffer_bind (const vertex_buffer_base &vbb, VertexBufferType _type, unsigned _idx) const override
bool	vertex_buffer_unbind (const vertex_buffer_base &vbb, VertexBufferType _type, unsigned _idx) const override
bool	vertex_buffer_create (vertex_buffer_base &vbb, const void *array_ptr, size_t size_in_bytes) const override
bool	vertex_buffer_resize (vertex_buffer_base &vbb, const void *array_ptr, size_t size_in_bytes) const override
bool	vertex_buffer_replace (vertex_buffer_base &vbb, size_t offset, size_t size_in_bytes, const void *array_ptr) const override
bool	vertex_buffer_copy (const vertex_buffer_base &src, size_t src_offset, vertex_buffer_base &target, size_t target_offset, size_t size_in_bytes) const override
bool	vertex_buffer_copy_back (vertex_buffer_base &vbb, size_t offset, size_t size_in_bytes, void *array_ptr) const override
bool	vertex_buffer_destruct (vertex_buffer_base &vbb) const override
bool	check_gl_error (const std::string &where, const cgv::render::render_component *rc=0) const
bool	check_texture_support (TextureType tt, const std::string &where, const cgv::render::render_component *rc=0) const
bool	check_shader_support (ShaderType st, const std::string &where, const cgv::render::render_component *rc=0) const
bool	check_fbo_support (const std::string &where, const cgv::render::render_component *rc=0) const
void	draw_textual_info () override
void	rotate_vector_to_target (const dvec3 &vector, const dvec3 &target)
	helper function that multiplies a rotation to modelview matrix such that vector is rotated onto target
Protected Member Functions inherited from cgv::render::context
virtual void	process_text (const std::string &text)
	callback method for processing of text from the output stream
virtual void	draw_text (const std::string &text)
	draw some text at cursor position and update cursor position
virtual bool	attribute_array_binding_destruct (attribute_array_binding_base &aab) const
bool	ensure_window_transformation_index (int &array_index)

Protected Attributes
shader_program	progs [4]
cgv::type::uint64_type	max_nr_indices
cgv::type::uint64_type	max_nr_vertices
cgv::media::font::font_face_ptr	info_font_face
	font used to draw textual info
float	info_font_size
	font size to draw textual info
bool	show_help
bool	show_stats
Protected Attributes inherited from cgv::render::context
GPUVendorID	gpu_vendor
bool	use_shader_file_cache
	whether to use the caching facilities of shader_program and shader_code to store loaded shader file contents as strings for faster loading
bool	auto_set_view_in_current_shader_program
	whether to automatically set viewing matrixes in current shader program, defaults to true
bool	auto_set_lights_in_current_shader_program
	whether to automatically set lights in current shader program, defaults to true
bool	auto_set_material_in_current_shader_program
	whether to automatically set material in current shader program, defaults to true
bool	auto_set_gamma_in_current_shader_program
	whether to automatically set gamma in current shader program, defaults to true
bool	support_compatibility_mode
	whether to support view and lighting management of compatibility mode, defaults to true
bool	draw_in_compatibility_mode
	whether to do all drawing in compatibility mode, only possible if support_compatibility_mode is true, , defaults to false
bool	debug_render_passes
	whether to debug render passes
bool	enable_vsync
	whether vsync should be enabled
rgba	current_color
	current color value
bool	sRGB_framebuffer
	whether to use opengl option to support sRGB framebuffer
vec3	gamma3
	per color channel gamma value passed to shader programs that have gamma uniform
std::stack< vec4 >	bg_color_stack
	stack of background colors
std::stack< float >	bg_depth_stack
	stack of background depth values
std::stack< int >	bg_stencil_stack
	stack of background stencil values
std::stack< vec4 >	bg_accum_color_stack
	stack of background accumulation colors
std::stack< DepthTestState >	depth_test_state_stack
	stack of depth test states
std::stack< CullingMode >	cull_state_stack
	stack of culling mode states
std::stack< BlendState >	blend_state_stack
	stack of blend states
std::stack< BufferMask >	buffer_mask_stack
	stack of buffer masks
std::stack< dmat4 >	modelview_matrix_stack
	keep two matrix stacks for model view and projection matrices
std::stack< dmat4 >	projection_matrix_stack
std::stack< std::vector< window_transformation > >	window_transformation_stack
	keep stack of window transformations
std::stack< frame_buffer_base * >	frame_buffer_stack
	stack of currently enabled frame buffers
std::stack< shader_program_base * >	shader_program_stack
	stack of currently enabled shader programs
std::stack< attribute_array_binding_base * >	attribute_array_binding_stack
	stack of currently enabled attribute array binding
std::vector< void * >	enabled_light_source_handles
	keep track of enabled light source handles
size_t	light_source_handle
	counter to construct light source handles
std::map< void *, std::pair< cgv::media::illum::light_source, light_source_status > >	light_sources
	map handle to light source and light source status information
cgv::media::illum::light_source	default_light_source [nr_default_light_sources]
	default light sources
void *	default_light_source_handles [nr_default_light_sources]
	handles of default light sources
cgv::media::illum::surface_material	default_material
	store a default material
const cgv::media::illum::surface_material *	current_material_ptr
	store pointer to current material
bool	current_material_is_textured
	store flag to tell whether current material is textured
std::stack< render_info >	render_pass_stack
	store the current render pass
RenderPassFlags	default_render_flags
	default render flags with which the main render pass is initialized
bool	phong_shading
	whether to use phong shading
int	current_background
	current back ground color index
int	cursor_x
	current cursor location for textual output
int	cursor_y
cgv::signal::callback_stream	out_stream
	use a callback stream to write text to the opengl context
float	current_font_size
	store current font size
cgv::media::font::font_face_ptr	current_font_face
	store current font
int	tab_size
	size a tabs
int	x_offset
	offset in x and y direction where text starts
int	y_offset
int	nr_identations
	current number of indentations
bool	at_line_begin
	store whether we are at the beginning of the line
bool	do_screen_shot

transformations
void	update_window_transformation_array ()
dmat4	get_modelview_matrix () const override
	return homogeneous 4x4 viewing matrix, which transforms from world to eye space
void	set_modelview_matrix (const dmat4 &V) override
	set the current modelview matrix, which transforms from world to eye space
dmat4	get_projection_matrix () const override
	return homogeneous 4x4 projection matrix, which transforms from eye to clip space
void	set_projection_matrix (const dmat4 &P) override
	set the current projection matrix, which transforms from eye to clip space
void	pop_window_transformation_array () override
	restore previous viewport and depth range arrays defining the window transformations
unsigned	get_max_window_transformation_array_size () const override
	query the maximum number of supported window transformations, which is at least 1
void	set_viewport (const ivec4 &viewport, int array_index=-1) override
	set the current viewport or one of the viewports in the window transformation array
void	set_depth_range (const dvec2 &depth_range=dvec2(0, 1), int array_index=-1) override
	set the current depth range or one of the depth ranges in the window transformation array
double	get_window_z (int x_window, int y_window) const override
	read the device z-coordinate from the z-buffer for the given device x- and y-coordinates

Additional Inherited Members
Static Public Member Functions inherited from cgv::render::context
static vec3	get_model_point (int x_window, int y_window, double z_window, const dmat4 &modelview_projection_window_matrix)
	compute model space 3D point from the given opengl pixel location (window location) with the given modelview_projection_window matrix
static vec3	get_model_point (const dvec3 &p_window, const dmat4 &modelview_projection_window_matrix)
	compute model space 3D point from the given window space point and the given modelview_projection_window matrix
Public Attributes inherited from cgv::render::context_config
bool	depth_buffer
	default: true
bool	double_buffer
	default: true
bool	alpha_buffer
	default: false
bool	stereo_buffer
	default: false
bool	stencil_buffer
	default: false
bool	accumulation_buffer
	default: false
bool	multi_sample_buffer
	default: false
int	depth_bits
	default: -1
int	stencil_bits
	default: -1
int	accumulation_bits
	default: -1
int	nr_multi_samples
	default: -1
int	version_major
	default: -1 ... major version of maximum supported OpenGL version
int	version_minor
	default: -1 ... minor version of maximum supported OpenGL version
bool	forward_compatible
	default: false
bool	debug
	default: false in release and true in debug version
bool	core_profile
	default: true
std::vector< int >	context_creation_attrib_list
	provide integer vector to store context creation attribute list
Static Protected Member Functions inherited from cgv::render::context
static void	get_buffer_list (frame_buffer_base &fbb, bool &depth_buffer, std::vector< int > &buffers, int offset=0)
Static Protected Attributes inherited from cgv::render::context
static const unsigned	nr_default_light_sources = 2
	number of default light sources

Detailed Description

implementation of the context API for the OpenGL API excluding methods for font selection, redraw and initiation of render passes.

Definition at line 43 of file gl_context.h.

Constructor & Destructor Documentation

gl_context()

cgv::render::gl::gl_context::gl_context

(

)

construct context and attach signals

construct gl_context and attach signals

Definition at line 342 of file gl_context.cxx.

References cgv::render::context::frame_buffer_stack, cgv::render::context::get_bg_accum_color(), cgv::render::context::get_bg_color(), cgv::render::context::get_bg_depth(), cgv::render::context::get_bg_stencil(), cgv::render::context::get_blend_state(), cgv::render::context::get_buffer_mask(), cgv::render::context::get_cull_state(), cgv::render::context::get_depth_test_state(), info_font_size, set_bg_accum_color(), set_bg_color(), set_bg_depth(), set_bg_stencil(), set_blend_state(), set_buffer_mask(), set_cull_state(), and set_depth_test_state().

Member Function Documentation

announce_external_frame_buffer_change()

void cgv::render::gl::gl_context::announce_external_frame_buffer_change ( void *&  cgv_fbo_storage )

overridevirtual

announce an external frame buffer change performed with rendering API to the cgv framework providing space to temporarily store frame buffer of cgv framework

Implements cgv::render::context.

Definition at line 1042 of file gl_context.cxx.

References cgv::render::context::error(), and cgv::render::context::frame_buffer_stack.

announce_external_viewport_change()

void cgv::render::gl::gl_context::announce_external_viewport_change ( ivec4 &  cgv_viewport_storage )

overridevirtual

announce an external viewport change performed with rendering API to the cgv framework providing space to temporarily store viewport of cgv framework

Implements cgv::render::context.

Definition at line 1062 of file gl_context.cxx.

References cgv::render::context::error(), and cgv::render::context::window_transformation_stack.

attribute_array_binding_create()

bool cgv::render::gl::gl_context::attribute_array_binding_create ( attribute_array_binding_base &  aab ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3333 of file gl_context.cxx.

attribute_array_binding_destruct()

bool cgv::render::gl::gl_context::attribute_array_binding_destruct ( attribute_array_binding_base &  aab )

protected

Definition at line 3350 of file gl_context.cxx.

attribute_array_binding_disable()

bool cgv::render::gl::gl_context::attribute_array_binding_disable ( attribute_array_binding_base &  aab )

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 3373 of file gl_context.cxx.

attribute_array_binding_enable()

bool cgv::render::gl::gl_context::attribute_array_binding_enable ( attribute_array_binding_base &  aab )

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 3365 of file gl_context.cxx.

check_fbo_support()

bool cgv::render::gl::gl_context::check_fbo_support ( const std::string &  where, const cgv::render::render_component *  rc = 0  ) const

protected

Definition at line 1878 of file gl_context.cxx.

check_gl_error()

bool cgv::render::gl::gl_context::check_gl_error ( const std::string &  where, const cgv::render::render_component *  rc = 0  ) const

protected

Definition at line 1813 of file gl_context.cxx.

check_shader_support()

bool cgv::render::gl::gl_context::check_shader_support ( ShaderType  st, const std::string &  where, const cgv::render::render_component *  rc = 0  ) const

protected

Definition at line 1843 of file gl_context.cxx.

check_texture_support()

bool cgv::render::gl::gl_context::check_texture_support ( TextureType  tt, const std::string &  where, const cgv::render::render_component *  rc = 0  ) const

protected

Definition at line 1823 of file gl_context.cxx.

clear_background()

void cgv::render::gl::gl_context::clear_background ( bool  color_flag, bool  depth_flag, bool  stencil_flag = false, bool  accum_flag = false  )

overridevirtual

clear the buffer contents of the flagged buffers to the set background colors

Implements cgv::render::context.

Definition at line 548 of file gl_context.cxx.

References cgv::render::context_config::core_profile.

configure_gl()

bool cgv::render::gl::gl_context::configure_gl

(

)

ensure that glew is initialized, define lighting mode, viewing pyramid and the rendering mode and return whether gl configuration was successful

define lighting mode, viewing pyramid and the rendering mode

Definition at line 422 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::context_config::debug, cgv::render::gl::ensure_glew_initialized(), cgv::render::context::error(), cgv::render::context_config::forward_compatible, cgv::render::context::get_height(), cgv::render::context::get_width(), cgv::render::drawable::init(), set_viewport(), cgv::utils::to_upper(), cgv::base::traverser::traverse(), cgv::render::context_config::version_major, and cgv::render::context_config::version_minor.

destruct_render_objects()

void cgv::render::gl::gl_context::destruct_render_objects ( )

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 845 of file gl_context.cxx.

disable_blending()

void cgv::render::gl::gl_context::disable_blending ( )

overridevirtual

disable blending

Reimplemented from cgv::render::context.

Definition at line 1587 of file gl_context.cxx.

References cgv::render::context::disable_blending().

disable_depth_test()

void cgv::render::gl::gl_context::disable_depth_test ( )

overridevirtual

disable the depth test

Reimplemented from cgv::render::context.

Definition at line 1525 of file gl_context.cxx.

References cgv::render::context::disable_depth_test().

disable_material()

void cgv::render::gl::gl_context::disable_material ( textured_material &  mat )

overridevirtual

disable a material with textures

Implements cgv::render::context.

Definition at line 838 of file gl_context.cxx.

References cgv::render::context::current_material_is_textured, and cgv::render::context::current_material_ptr.

draw_edges_of_faces()

void cgv::render::gl::gl_context::draw_edges_of_faces ( const float *  vertices, const float *  normals, const float *  tex_coords, const int *  vertex_indices, const int *  normal_indices, const int *  tex_coord_indices, int  nr_faces, int  face_degree, bool  flip_normals = false  ) const

overridevirtual

pass geometry of given faces to current shader program and generate draw calls to render lines for the edges

Implements cgv::render::context.

Definition at line 1341 of file gl_context.cxx.

References cgv::render::context::draw_in_compatibility_mode, prepare_attributes(), and release_attributes().

draw_edges_of_strip_or_fan()

void cgv::render::gl::gl_context::draw_edges_of_strip_or_fan ( const float *  vertices, const float *  normals, const float *  tex_coords, const int *  vertex_indices, const int *  normal_indices, const int *  tex_coord_indices, int  nr_faces, int  face_degree, bool  is_fan, bool  flip_normals = false  ) const

overridevirtual

pass geometry of given strip or fan to current shader program and generate draw calls to render lines for the edges

Implements cgv::render::context.

Definition at line 1391 of file gl_context.cxx.

References cgv::render::context::draw_in_compatibility_mode, prepare_attributes(), and release_attributes().

draw_elements()

template<typename T >

void cgv::render::gl::gl_context::draw_elements ( GLenum  mode, size_t  count, const T *  indices  ) const

inlineprotected

Definition at line 64 of file gl_context.h.

draw_elements_void()

void cgv::render::gl::gl_context::draw_elements_void ( GLenum  mode, size_t  count, GLenum  type, size_t  type_size, const void *  indices  ) const

protected

Definition at line 1367 of file gl_context.cxx.

draw_faces()

void cgv::render::gl::gl_context::draw_faces ( const float *  vertices, const float *  normals, const float *  tex_coords, const int *  vertex_indices, const int *  normal_indices, const int *  tex_coord_indices, int  nr_faces, int  face_degree, bool  flip_normals  ) const

overridevirtual

tesselate with independent faces

Implements cgv::render::context.

Definition at line 1434 of file gl_context.cxx.

References cgv::render::context::draw_in_compatibility_mode, prepare_attributes(), and release_attributes().

draw_light_source()

void cgv::render::gl::gl_context::draw_light_source ( const cgv::media::illum::light_source &  l, float  intensity_scale, float  light_scale  )

overridevirtual

draw a light source with an emissive material

Parameters

[in]	l	to be rendered light source
[in]	intensity_scale	used to multiply with the light source values

Reimplemented from cgv::render::context.

Definition at line 1005 of file gl_context.cxx.

References cgv::render::context::mul_modelview_matrix(), cgv::render::context::pop_cull_state(), cgv::render::context::pop_modelview_matrix(), cgv::render::context::push_cull_state(), cgv::render::context::push_modelview_matrix(), rotate_vector_to_target(), set_color(), set_cull_state(), tesselate_arrow(), cgv::render::context::tesselate_unit_cone(), and cgv::render::context::tesselate_unit_sphere().

draw_strip_or_fan()

void cgv::render::gl::gl_context::draw_strip_or_fan ( const float *  vertices, const float *  normals, const float *  tex_coords, const int *  vertex_indices, const int *  normal_indices, const int *  tex_coord_indices, int  nr_faces, int  face_degree, bool  is_fan, bool  flip_normals  ) const

overridevirtual

tesselate with one face strip

Implements cgv::render::context.

Definition at line 1480 of file gl_context.cxx.

References cgv::render::context::draw_in_compatibility_mode, prepare_attributes(), and release_attributes().

draw_textual_info()

void cgv::render::gl::gl_context::draw_textual_info ( )

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 686 of file gl_context.cxx.

enable_attribute_array()

bool cgv::render::gl::gl_context::enable_attribute_array ( attribute_array_binding_base *  aab, int  loc, bool  do_enable  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3482 of file gl_context.cxx.

enable_blending()

void cgv::render::gl::gl_context::enable_blending ( )

overridevirtual

enable blending

Reimplemented from cgv::render::context.

Definition at line 1582 of file gl_context.cxx.

References cgv::render::context::enable_blending().

enable_depth_test()

void cgv::render::gl::gl_context::enable_depth_test ( )

overridevirtual

enable the depth test

Reimplemented from cgv::render::context.

Definition at line 1520 of file gl_context.cxx.

References cgv::render::context::enable_depth_test().

enable_material()

void cgv::render::gl::gl_context::enable_material ( textured_material &  mat )

overridevirtual

enable a material with textures

Implements cgv::render::context.

Definition at line 831 of file gl_context.cxx.

References cgv::render::context::set_textured_material().

ensure_configured()

void cgv::render::gl::gl_context::ensure_configured ( ) const

protected

Definition at line 1382 of file gl_context.cxx.

enumerate_program_attributes()

void cgv::render::gl::gl_context::enumerate_program_attributes ( shader_program &  prog, std::vector< std::string > &  names, std::vector< int > *  locations_ptr = 0, std::vector< int > *  sizes_ptr = 0, std::vector< int > *  types_ptr = 0, bool  show = false  ) const

overridevirtual

get list of program attributes

get list of program uniforms

Implements cgv::render::context.

Definition at line 773 of file gl_context.cxx.

enumerate_program_uniforms()

void cgv::render::gl::gl_context::enumerate_program_uniforms ( shader_program &  prog, std::vector< std::string > &  names, std::vector< int > *  locations_ptr = 0, std::vector< int > *  sizes_ptr = 0, std::vector< int > *  types_ptr = 0, bool  show = false  ) const

overridevirtual

get list of program uniforms

Implements cgv::render::context.

Definition at line 748 of file gl_context.cxx.

finish_render_pass()

void cgv::render::gl::gl_context::finish_render_pass ( )

overridevirtual

Reimplemented from cgv::render::context.

Definition at line 661 of file gl_context.cxx.

frame_buffer_attach() [1/2]

bool cgv::render::gl::gl_context::frame_buffer_attach ( frame_buffer_base &  fbb, const render_buffer_base &  rb, bool  is_depth, int  i  ) const

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 2625 of file gl_context.cxx.

frame_buffer_attach() [2/2]

bool cgv::render::gl::gl_context::frame_buffer_attach ( frame_buffer_base &  fbb, const texture_base &  t, bool  is_depth, int  level, int  i, int  z  ) const

overrideprotectedvirtual

attach 2d texture to depth buffer if it is a depth texture, to stencil if it is a stencil texture or to the i-th color attachment if it is a color texture

Reimplemented from cgv::render::context.

Definition at line 2641 of file gl_context.cxx.

References cgv::render::gl::get_gl_cube_map_target().

frame_buffer_blit()

void cgv::render::gl::gl_context::frame_buffer_blit ( const frame_buffer_base *  src_fbb_ptr, const ivec4 &  S, frame_buffer_base *  dst_fbb_ptr, const ivec4 &  _D, BufferTypeBits  btbs, bool  interpolate  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2584 of file gl_context.cxx.

frame_buffer_create()

bool cgv::render::gl::gl_context::frame_buffer_create ( frame_buffer_base &  fbb ) const

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 2505 of file gl_context.cxx.

frame_buffer_destruct()

bool cgv::render::gl::gl_context::frame_buffer_destruct ( frame_buffer_base &  fbb ) const

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 2562 of file gl_context.cxx.

frame_buffer_disable()

bool cgv::render::gl::gl_context::frame_buffer_disable ( frame_buffer_base &  fbb )

overrideprotectedvirtual

disable the framebuffer object

Reimplemented from cgv::render::context.

Definition at line 2549 of file gl_context.cxx.

References cgv::render::context::error(), and cgv::render::context::frame_buffer_stack.

frame_buffer_enable()

bool cgv::render::gl::gl_context::frame_buffer_enable ( frame_buffer_base &  fbb )

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 2524 of file gl_context.cxx.

frame_buffer_get_max_nr_color_attachments()

int cgv::render::gl::gl_context::frame_buffer_get_max_nr_color_attachments ( ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2717 of file gl_context.cxx.

frame_buffer_get_max_nr_draw_buffers()

int cgv::render::gl::gl_context::frame_buffer_get_max_nr_draw_buffers ( ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2727 of file gl_context.cxx.

frame_buffer_is_complete()

bool cgv::render::gl::gl_context::frame_buffer_is_complete ( const frame_buffer_base &  fbb ) const

overrideprotectedvirtual

check for completeness, if not complete, get the reason in last_error

Implements cgv::render::context.

Definition at line 2674 of file gl_context.cxx.

References cgv::render::context::error().

get_attribute_location()

int cgv::render::gl::gl_context::get_attribute_location ( const shader_program_base &  spb, const std::string &  name  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3228 of file gl_context.cxx.

get_current_font_face()

media::font::font_face_ptr cgv::render::gl::gl_context::get_current_font_face ( ) const

overridevirtual

overwrite function to return info font face in case no font is currently selected

Reimplemented from cgv::render::context.

Definition at line 570 of file gl_context.cxx.

References cgv::render::context::current_font_face, cgv::data::ref_ptr< T, is_ref_counted >::empty(), and get_info_font_face().

get_current_font_size()

float cgv::render::gl::gl_context::get_current_font_size ( ) const

overridevirtual

overwrite function to return info font size in case no font is currently selected

Reimplemented from cgv::render::context.

Definition at line 563 of file gl_context.cxx.

References cgv::render::context::current_font_size, and get_info_font_size().

get_info_font_face()

cgv::media::font::font_face_ptr cgv::render::gl::gl_context::get_info_font_face

(

)

const

return info font face and ensure that it is created

Definition at line 331 of file gl_context.cxx.

References cgv::media::font::default_font(), cgv::data::ref_ptr< T, is_ref_counted >::empty(), and info_font_face.

Referenced by get_current_font_face().

get_info_font_size()

float cgv::render::gl::gl_context::get_info_font_size

(

)

const

return info font size

Definition at line 326 of file gl_context.cxx.

References info_font_size.

Referenced by get_current_font_size().

get_max_window_transformation_array_size()

unsigned cgv::render::gl::gl_context::get_max_window_transformation_array_size ( ) const

overridevirtual

query the maximum number of supported window transformations, which is at least 1

Implements cgv::render::context.

Definition at line 1671 of file gl_context.cxx.

get_modelview_matrix()

dmat4 cgv::render::gl::gl_context::get_modelview_matrix ( ) const

overridevirtual

return homogeneous 4x4 viewing matrix, which transforms from world to eye space

Implements cgv::render::context.

Definition at line 1619 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::context::modelview_matrix_stack, and cgv::render::context::support_compatibility_mode.

get_projection_matrix()

dmat4 cgv::render::gl::gl_context::get_projection_matrix ( ) const

overridevirtual

return homogeneous 4x4 projection matrix, which transforms from eye to clip space

Implements cgv::render::context.

Definition at line 1632 of file gl_context.cxx.

References cgv::render::context_config::core_profile, and cgv::render::context::support_compatibility_mode.

get_render_api()

RenderAPI cgv::render::gl::gl_context::get_render_api ( ) const

overridevirtual

return the used rendering API

Implements cgv::render::context.

Definition at line 364 of file gl_context.cxx.

get_uniform_location()

int cgv::render::gl::gl_context::get_uniform_location ( const shader_program_base &  spb, const std::string &  name  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2899 of file gl_context.cxx.

get_window_z()

double cgv::render::gl::gl_context::get_window_z ( int  x_window, int  y_window  ) const

overridevirtual

read the device z-coordinate from the z-buffer for the given device x- and y-coordinates

Implements cgv::render::context.

Definition at line 1754 of file gl_context.cxx.

References cgv::render::context::in_render_process(), cgv::render::context::is_current(), and cgv::render::context::make_current().

init_render_pass()

void cgv::render::gl::gl_context::init_render_pass ( )

overridevirtual

Reimplemented from cgv::render::context.

Definition at line 577 of file gl_context.cxx.

is_attribute_array_enabled()

bool cgv::render::gl::gl_context::is_attribute_array_enabled ( const attribute_array_binding_base *  aab, int  loc  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3505 of file gl_context.cxx.

on_lights_changed()

void cgv::render::gl::gl_context::on_lights_changed ( )

overridevirtual

helper function to send light update events

Reimplemented from cgv::render::context.

Definition at line 906 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::context::get_enabled_light_source_handle(), cgv::render::context::get_light_source(), cgv::render::context::get_nr_enabled_light_sources(), cgv::render::context::on_lights_changed(), and cgv::render::context::support_compatibility_mode.

perform_screen_shot()

void cgv::render::gl::gl_context::perform_screen_shot ( )

overridevirtual

Reimplemented from cgv::render::context.

Definition at line 730 of file gl_context.cxx.

pop_pixel_coords()

void cgv::render::gl::gl_context::pop_pixel_coords ( )

overridevirtual

pop previously changed transformation matrices

Implements cgv::render::context.

Definition at line 1107 of file gl_context.cxx.

References cgv::render::context::pop_modelview_matrix(), and cgv::render::context::pop_projection_matrix().

pop_window_transformation_array()

void cgv::render::gl::gl_context::pop_window_transformation_array ( )

overridevirtual

restore previous viewport and depth range arrays defining the window transformations

Reimplemented from cgv::render::context.

Definition at line 1644 of file gl_context.cxx.

References cgv::render::context::pop_window_transformation_array().

prepare_attributes()

bool cgv::render::gl::gl_context::prepare_attributes	(	std::vector< vec3 > &	P,
		std::vector< vec3 > &	N,
		std::vector< vec2 > &	T,
		unsigned	nr_vertices,
		const float *	vertices,
		const float *	normals,
		const float *	tex_coords,
		const int *	vertex_indices,
		const int *	normal_indices,
		const int *	tex_coord_indices,
		bool	flip_normals
	)		const

helper function to prepare attribute arrays

Definition at line 1247 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::attribute_array_binding::create(), cgv::render::vertex_buffer::create(), cgv::render::vertex_buffer::destruct(), cgv::render::attribute_array_binding::disable_array(), cgv::render::attribute_array_binding::disable_global_array(), cgv::render::attribute_array_binding::enable(), cgv::render::attribute_array_binding::enable_array(), cgv::render::attribute_array_binding::enable_global_array(), cgv::render::context::get_current_program(), cgv::render::vertex_buffer::replace(), and cgv::render::attribute_array_binding::set_attribute_array().

Referenced by draw_edges_of_faces(), draw_edges_of_strip_or_fan(), draw_faces(), and draw_strip_or_fan().

push_pixel_coords()

void cgv::render::gl::gl_context::push_pixel_coords ( )

overridevirtual

use this to push transformation matrices on the stack such that x and y coordinates correspond to window coordinates

Implements cgv::render::context.

Definition at line 1083 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::context::push_modelview_matrix(), cgv::render::context::push_projection_matrix(), set_modelview_matrix(), set_projection_matrix(), and cgv::render::context::support_compatibility_mode.

put_id()

void cgv::render::gl::gl_context::put_id ( void *  handle, void *  ptr  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 283 of file gl_context.cxx.

read_frame_buffer()

bool cgv::render::gl::gl_context::read_frame_buffer ( data::data_view &  dv, unsigned int  x = 0, unsigned int  y = 0, FrameBufferType  buffer_type = FB_BACK, cgv::type::info::TypeId  type = type::info::TI_UINT8, data::ComponentFormat  cf = data::CF_RGB, int  w = -1, int  h = -1  )

overridevirtual

implement according to specification in context class

Implements cgv::render::context.

Definition at line 1114 of file gl_context.cxx.

References cgv::data::CF_D, cgv::data::CF_RGB, cgv::data::CF_S, cgv::render::context::error(), cgv::data::packing_info::get_component_alignment(), cgv::data::data_format::get_component_format(), cgv::data::component_format::get_component_type(), cgv::data::data_view_base::get_format(), cgv::data::data_format::get_height(), cgv::data::data_view_impl< D, P >::get_ptr(), cgv::data::component_format::get_standard_component_format(), cgv::type::info::get_type_name(), cgv::data::data_format::get_width(), cgv::data::data_view_base::manage_format(), cgv::data::data_view::reflect_horizontally(), cgv::utils::to_string(), and cgv::data::data_view::~data_view().

recover_from_external_frame_buffer_change()

void cgv::render::gl::gl_context::recover_from_external_frame_buffer_change ( void *  cgv_fbo_storage )

overridevirtual

restore cgv frame buffer to the state before the external change

Implements cgv::render::context.

Definition at line 1054 of file gl_context.cxx.

References cgv::render::context::frame_buffer_stack.

recover_from_external_viewport_change()

void cgv::render::gl::gl_context::recover_from_external_viewport_change ( const ivec4 &  cgv_viewport_storage )

overridevirtual

restore cgv viewport to the state before the external change

Implements cgv::render::context.

Definition at line 1074 of file gl_context.cxx.

References cgv::render::context::window_transformation_stack.

ref_default_shader_program()

shader_program & cgv::render::gl::gl_context::ref_default_shader_program ( bool  texture_support = false )

overridevirtual

return a reference to a shader program used to render without illumination

Implements cgv::render::context.

Definition at line 852 of file gl_context.cxx.

References cgv::render::context::error(), cgv::render::context::is_created(), and cgv::render::shader_program::set_uniform().

ref_surface_shader_program()

shader_program & cgv::render::gl::gl_context::ref_surface_shader_program ( bool  texture_support = false )

overridevirtual

return a reference to the default shader program used to render surfaces

return a reference to the default shader program used to render surfaces without textures

Implements cgv::render::context.

Definition at line 880 of file gl_context.cxx.

References cgv::render::context::error(), and cgv::render::context::is_created().

release_attributes()

bool cgv::render::gl::gl_context::release_attributes	(	const float *	normals,
		const float *	tex_coords,
		const int *	normal_indices,
		const int *	tex_coord_indices
	)		const

helper function to disable attribute arrays

Definition at line 1218 of file gl_context.cxx.

References cgv::render::vertex_buffer::destruct(), cgv::render::attribute_array_binding::disable(), cgv::render::attribute_array_binding::disable_array(), cgv::render::attribute_array_binding::disable_global_array(), and cgv::render::context::get_current_program().

Referenced by draw_edges_of_faces(), draw_edges_of_strip_or_fan(), draw_faces(), and draw_strip_or_fan().

render_buffer_create()

bool cgv::render::gl::gl_context::render_buffer_create ( render_buffer_base &  rc, cgv::data::component_format &  cf, int &  _width, int &  _height  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2453 of file gl_context.cxx.

render_buffer_destruct()

bool cgv::render::gl::gl_context::render_buffer_destruct ( render_buffer_base &  rc ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2491 of file gl_context.cxx.

resize_gl()

void cgv::render::gl::gl_context::resize_gl

(

)

Definition at line 517 of file gl_context.cxx.

rotate_vector_to_target()

void cgv::render::gl::gl_context::rotate_vector_to_target ( const dvec3 &  vector, const dvec3 &  target  )

protected

helper function that multiplies a rotation to modelview matrix such that vector is rotated onto target

Definition at line 983 of file gl_context.cxx.

References cgv::render::context::mul_modelview_matrix().

Referenced by draw_light_source(), and tesselate_arrow().

set_attribute_array_void()

bool cgv::render::gl::gl_context::set_attribute_array_void ( attribute_array_binding_base *  aab, int  loc, type_descriptor  value_type, const vertex_buffer_base *  vbb, const void *  ptr, size_t  nr_elements, unsigned  stride_in_bytes  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3420 of file gl_context.cxx.

set_attribute_void()

bool cgv::render::gl::gl_context::set_attribute_void ( shader_program_base &  spb, int  loc, type_descriptor  value_type, const void *  value_ptr  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3234 of file gl_context.cxx.

set_bg_accum_color()

void cgv::render::gl::gl_context::set_bg_accum_color ( vec4  rgba )

overridevirtual

set a user defined background color for the accumulation buffer

Reimplemented from cgv::render::context.

Definition at line 542 of file gl_context.cxx.

References cgv::render::context_config::core_profile, and cgv::render::context::set_bg_accum_color().

Referenced by gl_context().

set_bg_color()

void cgv::render::gl::gl_context::set_bg_color ( vec4  rgba )

overridevirtual

set a user defined background color

Reimplemented from cgv::render::context.

Definition at line 527 of file gl_context.cxx.

References cgv::render::context::set_bg_color().

Referenced by gl_context().

set_bg_depth()

void cgv::render::gl::gl_context::set_bg_depth ( float  d )

overridevirtual

set a user defined background depth value

Reimplemented from cgv::render::context.

Definition at line 532 of file gl_context.cxx.

References cgv::render::context::set_bg_depth().

Referenced by gl_context().

set_bg_stencil()

void cgv::render::gl::gl_context::set_bg_stencil ( int  s )

overridevirtual

set a user defined background stencil value

Reimplemented from cgv::render::context.

Definition at line 537 of file gl_context.cxx.

References cgv::render::context::set_bg_stencil().

Referenced by gl_context().

set_blend_func()

void cgv::render::gl::gl_context::set_blend_func ( BlendFunction  src_factor, BlendFunction  dst_factor  )

overridevirtual

set the blend function

Reimplemented from cgv::render::context.

Definition at line 1567 of file gl_context.cxx.

References cgv::render::context::set_blend_func().

set_blend_func_separate()

void cgv::render::gl::gl_context::set_blend_func_separate ( BlendFunction  src_color_factor, BlendFunction  dst_color_factor, BlendFunction  src_alpha_factor, BlendFunction  dst_alpha_factor  )

overridevirtual

set the blend function separately for color and alpha

Reimplemented from cgv::render::context.

Definition at line 1572 of file gl_context.cxx.

References cgv::render::context::set_blend_func_separate().

set_blend_state()

void cgv::render::gl::gl_context::set_blend_state ( BlendState  state )

overridevirtual

set the complete blend state

Reimplemented from cgv::render::context.

Definition at line 1549 of file gl_context.cxx.

References cgv::render::context::BlendState::dst_alpha, cgv::render::context::BlendState::dst_color, cgv::render::context::BlendState::enabled, cgv::render::context::set_blend_state(), cgv::render::context::BlendState::src_alpha, and cgv::render::context::BlendState::src_color.

Referenced by gl_context().

set_buffer_mask()

void cgv::render::gl::gl_context::set_buffer_mask ( BufferMask  mask )

overridevirtual

set the buffer mask for depth and color buffers

Reimplemented from cgv::render::context.

Definition at line 1592 of file gl_context.cxx.

References cgv::render::context::set_buffer_mask().

Referenced by gl_context().

set_color()

void cgv::render::gl::gl_context::set_color ( const rgba &  clr )

overridevirtual

set the current color

Reimplemented from cgv::render::context.

Definition at line 798 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::context::current_color, cgv::render::shader_program::set_attribute(), cgv::render::context::shader_program_stack, and cgv::render::context::support_compatibility_mode.

Referenced by draw_light_source().

set_color_mask()

void cgv::render::gl::gl_context::set_color_mask ( bvec4  flags )

overridevirtual

set the color buffer mask

Reimplemented from cgv::render::context.

Definition at line 1608 of file gl_context.cxx.

References cgv::render::context::set_color_mask().

set_cull_state()

void cgv::render::gl::gl_context::set_cull_state ( CullingMode  culling_mode )

overridevirtual

set the culling state

Reimplemented from cgv::render::context.

Definition at line 1530 of file gl_context.cxx.

References cgv::render::context::set_cull_state().

Referenced by draw_light_source(), and gl_context().

set_depth_func()

void cgv::render::gl::gl_context::set_depth_func ( CompareFunction  func )

overridevirtual

set the depth test function

Reimplemented from cgv::render::context.

Definition at line 1515 of file gl_context.cxx.

References cgv::render::context::set_depth_func().

set_depth_mask()

void cgv::render::gl::gl_context::set_depth_mask ( bool  flag )

overridevirtual

set the depth buffer mask

Reimplemented from cgv::render::context.

Definition at line 1603 of file gl_context.cxx.

References cgv::render::context::set_depth_mask().

set_depth_range()

void cgv::render::gl::gl_context::set_depth_range ( const dvec2 &  depth_range = dvec2(0, 1), int  array_index = -1  )

overridevirtual

set the current depth range or one of the depth ranges in the window transformation array

Reimplemented from cgv::render::context.

Definition at line 1699 of file gl_context.cxx.

References cgv::render::context::set_depth_range(), and cgv::render::context::window_transformation_stack.

set_depth_test_state()

void cgv::render::gl::gl_context::set_depth_test_state ( DepthTestState  state )

overridevirtual

set the depth test state

Reimplemented from cgv::render::context.

Definition at line 1506 of file gl_context.cxx.

References cgv::render::context::DepthTestState::enabled, cgv::render::context::set_depth_test_state(), and cgv::render::context::DepthTestState::test_func.

Referenced by gl_context().

set_element_array()

bool cgv::render::gl::gl_context::set_element_array ( attribute_array_binding_base *  aab, const vertex_buffer_base *  vbb  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3384 of file gl_context.cxx.

set_material()

void cgv::render::gl::gl_context::set_material ( const cgv::media::illum::surface_material &  mat )

overridevirtual

set the current material

Reimplemented from cgv::render::context.

Definition at line 816 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::context::set_material(), and cgv::render::context::support_compatibility_mode.

set_modelview_matrix()

void cgv::render::gl::gl_context::set_modelview_matrix ( const dmat4 &  V )

overridevirtual

set the current modelview matrix, which transforms from world to eye space

Reimplemented from cgv::render::context.

Definition at line 1729 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::context::set_modelview_matrix(), and cgv::render::context::support_compatibility_mode.

Referenced by push_pixel_coords().

set_projection_matrix()

void cgv::render::gl::gl_context::set_projection_matrix ( const dmat4 &  P )

overridevirtual

set the current projection matrix, which transforms from eye to clip space

Reimplemented from cgv::render::context.

Definition at line 1741 of file gl_context.cxx.

References cgv::render::context_config::core_profile, cgv::render::context::set_projection_matrix(), and cgv::render::context::support_compatibility_mode.

Referenced by push_pixel_coords().

set_uniform_array_void()

bool cgv::render::gl::gl_context::set_uniform_array_void ( shader_program_base &  spb, int  loc, type_descriptor  value_type, const void *  value_ptr, size_t  nr_elements  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3096 of file gl_context.cxx.

set_uniform_void()

bool cgv::render::gl::gl_context::set_uniform_void ( shader_program_base &  spb, int  loc, type_descriptor  value_type, const void *  value_ptr  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2923 of file gl_context.cxx.

set_viewport()

void cgv::render::gl::gl_context::set_viewport ( const ivec4 &  viewport, int  array_index = -1  )

overridevirtual

set the current viewport or one of the viewports in the window transformation array

Reimplemented from cgv::render::context.

Definition at line 1680 of file gl_context.cxx.

References cgv::render::context::set_viewport(), and cgv::render::context::window_transformation_stack.

Referenced by configure_gl().

shader_code_compile()

bool cgv::render::gl::gl_context::shader_code_compile ( render_component &  sc ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2772 of file gl_context.cxx.

shader_code_create()

bool cgv::render::gl::gl_context::shader_code_create ( render_component &  sc, ShaderType  st, const std::string &  source  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2752 of file gl_context.cxx.

shader_code_destruct()

void cgv::render::gl::gl_context::shader_code_destruct ( render_component &  sc ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2742 of file gl_context.cxx.

shader_program_attach()

void cgv::render::gl::gl_context::shader_program_attach ( shader_program_base &  spb, const render_component &  sc  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2805 of file gl_context.cxx.

shader_program_create()

bool cgv::render::gl::gl_context::shader_program_create ( shader_program_base &  spb ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2797 of file gl_context.cxx.

shader_program_destruct()

bool cgv::render::gl::gl_context::shader_program_destruct ( shader_program_base &  spb ) const

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 2891 of file gl_context.cxx.

shader_program_detach()

void cgv::render::gl::gl_context::shader_program_detach ( shader_program_base &  spb, const render_component &  sc  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2814 of file gl_context.cxx.

shader_program_disable()

bool cgv::render::gl::gl_context::shader_program_disable ( shader_program_base &  spb )

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 2880 of file gl_context.cxx.

shader_program_enable()

bool cgv::render::gl::gl_context::shader_program_enable ( shader_program_base &  spb )

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 2861 of file gl_context.cxx.

shader_program_link()

bool cgv::render::gl::gl_context::shader_program_link ( shader_program_base &  spb ) const

overrideprotectedvirtual

Reimplemented from cgv::render::context.

Definition at line 2823 of file gl_context.cxx.

shader_program_set_state()

bool cgv::render::gl::gl_context::shader_program_set_state ( shader_program_base &  spb ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2848 of file gl_context.cxx.

tesselate_arrow() [1/2]

void cgv::render::gl::gl_context::tesselate_arrow ( const dvec3 &  start, const dvec3 &  end, double  aspect = 0.1f, double  rel_tip_radius = 2.0f, double  tip_aspect = 0.3f, int  res = 25, bool  edges = false  )

overridevirtual

define length and direction from start and end point and draw an arrow

Reimplemented from cgv::render::context.

Definition at line 992 of file gl_context.cxx.

References cgv::render::context::error(), cgv::render::context::mul_modelview_matrix(), cgv::render::context::pop_modelview_matrix(), cgv::render::context::push_modelview_matrix(), rotate_vector_to_target(), and tesselate_arrow().

tesselate_arrow() [2/2]

void cgv::render::gl::gl_context::tesselate_arrow ( double  length = 1, double  aspect = 0.1, double  rel_tip_radius = 2.0, double  tip_aspect = 0.3, int  res = 25, bool  edges = false  )

overridevirtual

tesselate an arrow from the origin in z-direction

An arrow of length L is composed of a cylinder of radius R and a cone of radius r. The parameters are

Parameters

[in]	length	the total length of the radius
[in]	aspect	is defined as R/L
[in]	rel_tip_radius	is defined as r/R
[in]	tip_aspect	is defined as r/l

Reimplemented from cgv::render::context.

Definition at line 955 of file gl_context.cxx.

References cgv::render::context::mul_modelview_matrix(), cgv::render::context::pop_modelview_matrix(), cgv::render::context::push_modelview_matrix(), cgv::render::context::tesselate_unit_cone(), cgv::render::context::tesselate_unit_cylinder(), and cgv::render::context::tesselate_unit_disk().

Referenced by draw_light_source(), and tesselate_arrow().

texture_bind_as_image()

bool cgv::render::gl::gl_context::texture_bind_as_image ( texture_base &  tb, int  tex_unit, int  level, bool  bind_array, int  layer, AccessType  access  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2433 of file gl_context.cxx.

texture_create() [1/2]

bool cgv::render::gl::gl_context::texture_create ( texture_base &  tb, cgv::data::data_format &  df  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 1924 of file gl_context.cxx.

texture_create() [2/2]

bool cgv::render::gl::gl_context::texture_create ( texture_base &  tb, cgv::data::data_format &  target_format, const cgv::data::const_data_view &  data, int  level, int  cube_side = -1, int  num_array_layers = 0, const std::vector< cgv::data::data_view > *  palettes = 0  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 1994 of file gl_context.cxx.

texture_create_from_buffer()

bool cgv::render::gl::gl_context::texture_create_from_buffer ( texture_base &  tb, cgv::data::data_format &  df, int  x, int  y, int  level  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2048 of file gl_context.cxx.

texture_create_mipmaps()

bool cgv::render::gl::gl_context::texture_create_mipmaps ( texture_base &  tb, cgv::data::data_format &  df  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2206 of file gl_context.cxx.

texture_destruct()

bool cgv::render::gl::gl_context::texture_destruct ( texture_base &  tb ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2325 of file gl_context.cxx.

texture_disable()

bool cgv::render::gl::gl_context::texture_disable ( texture_base &  tb, int  tex_unit, unsigned int  nr_dims  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2407 of file gl_context.cxx.

texture_enable()

bool cgv::render::gl::gl_context::texture_enable ( texture_base &  tb, int  tex_unit, unsigned int  nr_dims  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2376 of file gl_context.cxx.

texture_find_best_format()

cgv::data::component_format cgv::render::gl::gl_context::texture_find_best_format ( const cgv::data::component_format &  cf, render_component &  rc, const std::vector< cgv::data::data_view > *  palettes = 0  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 1782 of file gl_context.cxx.

texture_generate_mipmaps()

bool cgv::render::gl::gl_context::texture_generate_mipmaps ( texture_base &  tb, unsigned int  dim  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2308 of file gl_context.cxx.

texture_replace()

bool cgv::render::gl::gl_context::texture_replace ( texture_base &  tb, int  x, int  y, int  z_or_cube_side, const cgv::data::const_data_view &  data, int  level, const std::vector< cgv::data::data_view > *  palettes = 0  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2108 of file gl_context.cxx.

texture_replace_from_buffer()

bool cgv::render::gl::gl_context::texture_replace_from_buffer ( texture_base &  tb, int  x, int  y, int  z_or_cube_side, int  x_buffer, int  y_buffer, unsigned int  width, unsigned int  height, int  level  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2151 of file gl_context.cxx.

texture_set_state()

bool cgv::render::gl::gl_context::texture_set_state ( const texture_base &  tb ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 2338 of file gl_context.cxx.

update_window_transformation_array()

void cgv::render::gl::gl_context::update_window_transformation_array ( )

protected

Definition at line 1650 of file gl_context.cxx.

vertex_buffer_bind()

bool cgv::render::gl::gl_context::vertex_buffer_bind ( const vertex_buffer_base &  vbb, VertexBufferType  _type, unsigned  _idx  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3557 of file gl_context.cxx.

vertex_buffer_copy()

bool cgv::render::gl::gl_context::vertex_buffer_copy ( const vertex_buffer_base &  src, size_t  src_offset, vertex_buffer_base &  target, size_t  target_offset, size_t  size_in_bytes  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3618 of file gl_context.cxx.

vertex_buffer_copy_back()

bool cgv::render::gl::gl_context::vertex_buffer_copy_back ( vertex_buffer_base &  vbb, size_t  offset, size_t  size_in_bytes, void *  array_ptr  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3634 of file gl_context.cxx.

vertex_buffer_create()

bool cgv::render::gl::gl_context::vertex_buffer_create ( vertex_buffer_base &  vbb, const void *  array_ptr, size_t  size_in_bytes  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3574 of file gl_context.cxx.

vertex_buffer_destruct()

bool cgv::render::gl::gl_context::vertex_buffer_destruct ( vertex_buffer_base &  vbb ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3647 of file gl_context.cxx.

vertex_buffer_replace()

bool cgv::render::gl::gl_context::vertex_buffer_replace ( vertex_buffer_base &  vbb, size_t  offset, size_t  size_in_bytes, const void *  array_ptr  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3605 of file gl_context.cxx.

vertex_buffer_resize()

bool cgv::render::gl::gl_context::vertex_buffer_resize ( vertex_buffer_base &  vbb, const void *  array_ptr, size_t  size_in_bytes  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3593 of file gl_context.cxx.

vertex_buffer_unbind()

bool cgv::render::gl::gl_context::vertex_buffer_unbind ( const vertex_buffer_base &  vbb, VertexBufferType  _type, unsigned  _idx  ) const

overrideprotectedvirtual

Implements cgv::render::context.

Definition at line 3566 of file gl_context.cxx.

Member Data Documentation

info_font_face

cgv::media::font::font_face_ptr cgv::render::gl::gl_context::info_font_face

mutableprotected

font used to draw textual info

Definition at line 141 of file gl_context.h.

Referenced by get_info_font_face().

info_font_size

float cgv::render::gl::gl_context::info_font_size

protected

font size to draw textual info

Definition at line 143 of file gl_context.h.

Referenced by get_info_font_size(), and gl_context().

max_nr_indices

cgv::type::uint64_type cgv::render::gl::gl_context::max_nr_indices

mutableprotected

Definition at line 58 of file gl_context.h.

max_nr_vertices

cgv::type::uint64_type cgv::render::gl::gl_context::max_nr_vertices

protected

Definition at line 58 of file gl_context.h.

progs

shader_program cgv::render::gl::gl_context::progs[4]

protected

Definition at line 57 of file gl_context.h.

show_help

bool cgv::render::gl::gl_context::show_help

protected

Definition at line 147 of file gl_context.h.

show_stats

bool cgv::render::gl::gl_context::show_stats

protected

Definition at line 148 of file gl_context.h.

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The documentation for this class was generated from the following files:

• libs/cgv_gl/gl/gl_context.h
• libs/cgv_gl/gl/gl_context.cxx