Encapsulates all the communication with a particular instance of a given rendering backend. More...
#include "graphicsStateGuardian.h"
Public Types | |
| enum | ShaderModel { SM_00, SM_11, SM_20, SM_2X, SM_30, SM_40, SM_50, SM_51 } |
| typedef bool | TextureCallback(TextureContext *tc, void *callback_arg) |
Public Member Functions | |
| GraphicsStateGuardian (CoordinateSystem internal_coordinate_system, GraphicsEngine *engine, GraphicsPipe *pipe) | |
| virtual bool | begin_draw_primitives (const GeomPipelineReader *geom_reader, const GeomVertexDataPipelineReader *data_reader, bool force) |
| Called before a sequence of draw_primitive() functions are called, this should prepare the vertex data for rendering. More... | |
| virtual bool | begin_frame (Thread *current_thread) |
| Called before each frame is rendered, to allow the GSG a chance to do any internal cleanup before beginning the frame. More... | |
| virtual void | begin_occlusion_query () |
| Begins a new occlusion query. More... | |
| virtual bool | begin_scene () |
| Called between begin_frame() and end_frame() to mark the beginning of drawing commands for a "scene" (usually a particular DisplayRegion) within a frame. More... | |
| virtual void | bind_light (PointLight *light_obj, const NodePath &light, int light_id) |
| Called the first time a particular light has been bound to a given id within a frame, this should set up the associated hardware light with the light's properties. More... | |
| virtual void | bind_light (DirectionalLight *light_obj, const NodePath &light, int light_id) |
| Called the first time a particular light has been bound to a given id within a frame, this should set up the associated hardware light with the light's properties. More... | |
| virtual void | bind_light (Spotlight *light_obj, const NodePath &light, int light_id) |
| Called the first time a particular light has been bound to a given id within a frame, this should set up the associated hardware light with the light's properties. More... | |
| virtual void | clear (DrawableRegion *clearable) |
| Clears the framebuffer within the current DisplayRegion, according to the flags indicated by the given DrawableRegion object. More... | |
| virtual void | clear_before_callback () |
| Resets any non-standard graphics state that might give a callback apoplexy. More... | |
| void | clear_flash_texture () |
| Resets the "flash texture", so that no textures will flash. More... | |
| virtual void | clear_state_and_transform () |
| Forgets the current graphics state and current transform, so that the next call to set_state_and_transform() will have to reload everything. More... | |
| PN_stdfloat | compute_distance_to (const LPoint3 &point) const |
| This function will compute the distance to the indicated point, assumed to be in eye coordinates, from the camera plane. More... | |
| virtual | CPT (TransformState) calc_projection_mat(const Lens *lens) |
| virtual | CPT (RenderState) begin_decal_base_first() |
| virtual | CPT (RenderState) begin_decal_nested() |
| virtual | CPT (RenderState) begin_decal_base_second() |
| CPT (TransformState) get_external_transform() const | |
| CPT (TransformState) get_internal_transform() const | |
| virtual | CPT (TransformState) get_cs_transform_for(CoordinateSystem cs) const |
| virtual | CPT (TransformState) get_cs_transform() const |
| CPT (TransformState) get_inv_cs_transform() const | |
| virtual bool | depth_offset_decals () |
| Returns true if this GSG can implement decals using a DepthOffsetAttrib, or false if that is unreliable and the three-step rendering process should be used instead. More... | |
| virtual void | dispatch_compute (int size_x, int size_y, int size_z) |
| Dispatches a currently bound compute shader using the given work group counts. More... | |
| void | do_issue_clip_plane () |
| void | do_issue_color () |
| This method is defined in the base class because it is likely that this functionality will be used for all (or at least most) kinds of GraphicsStateGuardians–it's not specific to any one rendering backend. More... | |
| void | do_issue_color_scale () |
| virtual void | do_issue_light () |
| This implementation of do_issue_light() assumes we have a limited number of hardware lights available. More... | |
| virtual bool | draw_lines (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of disconnected line segments. More... | |
| virtual bool | draw_lines_adj (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of disconnected line segments with adjacency information. More... | |
| virtual bool | draw_linestrips (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of line strips. More... | |
| virtual bool | draw_linestrips_adj (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of line strips with adjacency information. More... | |
| virtual bool | draw_patches (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of "patches", which can only be processed by a tessellation shader. More... | |
| virtual bool | draw_points (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of disconnected points. More... | |
| virtual bool | draw_triangles (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of disconnected triangles. More... | |
| virtual bool | draw_triangles_adj (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of disconnected triangles with adjacency information. More... | |
| virtual bool | draw_trifans (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of triangle fans. More... | |
| virtual bool | draw_tristrips (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of triangle strips. More... | |
| virtual bool | draw_tristrips_adj (const GeomPrimitivePipelineReader *reader, bool force) |
| Draws a series of triangle strips with adjacency information. More... | |
| virtual void | end_draw_primitives () |
| Called after a sequence of draw_primitive() functions are called, this should do whatever cleanup is appropriate. More... | |
| virtual void | end_frame (Thread *current_thread) |
| Called after each frame is rendered, to allow the GSG a chance to do any internal cleanup after rendering the frame, and before the window flips. More... | |
| virtual void | end_scene () |
| Called between begin_frame() and end_frame() to mark the end of drawing commands for a "scene" (usually a particular DisplayRegion) within a frame. More... | |
| virtual void | ensure_generated_shader (const RenderState *state) |
| Ensures that an appropriate shader has been generated for the given state. More... | |
| virtual bool | extract_texture_data (Texture *tex) |
| This method should only be called by the GraphicsEngine. More... | |
| const LMatrix4 * | fetch_specified_member (const NodePath &np, CPT_InternalName member, LMatrix4 &t) |
| Given a NodePath passed into a shader input that is a structure, fetches the value for the given member. More... | |
| const LMatrix4 * | fetch_specified_part (Shader::ShaderMatInput input, InternalName *name, LMatrix4 &t, int index) |
| See fetch_specified_value. More... | |
| const LMatrix4 * | fetch_specified_value (Shader::ShaderMatSpec &spec, int altered) |
| The gsg contains a large number of useful matrices: More... | |
| virtual void | finish_decal () |
| Called during draw to clean up after decals are finished. More... | |
| void | flush_timer_queries () |
| Called by the graphics engine on the draw thread to check the status of the running timer queries and submit their results to the PStats server. More... | |
| virtual TypeHandle | force_init_type () |
| virtual bool | framebuffer_copy_to_ram (Texture *tex, int view, int z, const DisplayRegion *dr, const RenderBuffer &rb) |
| Copy the pixels within the indicated display region from the framebuffer into system memory, not texture memory. More... | |
| virtual bool | framebuffer_copy_to_texture (Texture *tex, int view, int z, const DisplayRegion *dr, const RenderBuffer &rb) |
| Copy the pixels within the indicated display region from the framebuffer into texture memory. More... | |
| bool | get_alpha_scale_via_texture () const |
| Returns true if this particular GSG can implement (or would prefer to implement) an alpha scale via an additional Texture layer, or false if we need to actually munge the alpha. More... | |
| bool | get_alpha_scale_via_texture (const TextureAttrib *tex_attrib) const |
| This variant of get_alpha_scale_via_texture() answers the question of whether the GSG can implement an alpha scale via an additional Texture layer, considering the current TextureAttrib that will be in effect. More... | |
| bool | get_color_scale_via_lighting () const |
| Returns true if this particular GSG can implement (or would prefer to implement) set color and/or color scale using materials and/or ambient lights, or false if we need to actually munge the color. More... | |
| CoordinateSystem | get_coordinate_system () const |
| bool | get_copy_texture_inverted () const |
| const DisplayRegion * | get_current_display_region () const |
| const Lens * | get_current_lens () const |
| Lens::StereoChannel | get_current_stereo_channel () const |
| int | get_current_tex_view_offset () const |
| virtual std::string | get_driver_renderer () |
| virtual int | get_driver_shader_version_major () |
| virtual int | get_driver_shader_version_minor () |
| virtual std::string | get_driver_vendor () |
| virtual std::string | get_driver_version () |
| virtual int | get_driver_version_major () |
| virtual int | get_driver_version_minor () |
| virtual bool | get_effective_incomplete_render () const |
| GraphicsEngine * | get_engine () const |
| Returns the graphics engine that created this GSG. More... | |
| Texture * | get_flash_texture () const |
| PN_stdfloat | get_gamma () const |
| virtual bool | get_incomplete_render () const |
| virtual CoordinateSystem | get_internal_coordinate_system () const |
| Returns the coordinate system used internally by the GSG. More... | |
| Loader * | get_loader () const |
| int | get_max_2d_texture_array_layers () const |
| int | get_max_3d_texture_dimension () const |
| int | get_max_buffer_texture_size () const |
| int | get_max_clip_planes () const |
| int | get_max_color_targets () const |
| int | get_max_cube_map_dimension () const |
| int | get_max_lights () const |
| virtual int | get_max_texture_dimension () const |
| int | get_max_texture_stages () const |
| int | get_max_vertex_transform_indices () const |
| int | get_max_vertex_transforms () const |
| virtual int | get_max_vertices_per_array () const |
| virtual int | get_max_vertices_per_primitive () const |
| int | get_maximum_simultaneous_render_targets () const |
| Deprecated. More... | |
| GraphicsPipe * | get_pipe () const |
| virtual PreparedGraphicsObjects * | get_prepared_objects () |
| RenderBuffer | get_render_buffer (int buffer_type, const FrameBufferProperties &prop) |
| Returns a RenderBuffer object suitable for operating on the requested set of buffers. More... | |
| bool | get_runtime_color_scale () const |
| Returns true if this particular GSG can implement (or would prefer to implement) set color and/or color scale directly, without requiring any munging of vertices or tricks with lighting. More... | |
| virtual SceneSetup * | get_scene () const final |
| ShaderGenerator * | get_shader_generator () const |
| ShaderModel | get_shader_model () const |
| virtual int | get_supported_geom_rendering () const |
| Returns the union of Geom::GeomRendering values that this particular GSG can support directly. More... | |
| bool | get_supports_2d_texture_array () const |
| bool | get_supports_3d_texture () const |
| bool | get_supports_basic_shaders () const |
| bool | get_supports_buffer_texture () const |
| virtual bool | get_supports_cg_profile (const std::string &name) const |
| Returns true if this particular GSG supports the specified Cg Shader Profile. More... | |
| bool | get_supports_compressed_texture () const |
| virtual bool | get_supports_compressed_texture_format (int compression_mode) const |
| Returns true if this GSG can accept textures pre-compressed in the indicated format. More... | |
| bool | get_supports_compute_shaders () const |
| bool | get_supports_cube_map () const |
| bool | get_supports_cube_map_array () const |
| bool | get_supports_depth_stencil () const |
| bool | get_supports_depth_texture () const |
| bool | get_supports_dual_source_blending () const |
| bool | get_supports_generate_mipmap () const |
| bool | get_supports_geometry_instancing () const |
| bool | get_supports_geometry_shaders () const |
| bool | get_supports_glsl () const |
| bool | get_supports_hlsl () const |
| bool | get_supports_indirect_draw () const |
| bool | get_supports_luminance_texture () const |
| virtual bool | get_supports_multisample () const |
| bool | get_supports_occlusion_query () const |
| bool | get_supports_sampler_objects () const |
| bool | get_supports_shadow_filter () const |
| bool | get_supports_stencil () const |
| bool | get_supports_tessellation_shaders () const |
| bool | get_supports_tex_non_pow2 () const |
| bool | get_supports_texture_combine () const |
| bool | get_supports_texture_dot3 () const |
| bool | get_supports_texture_saved_result () const |
| bool | get_supports_texture_srgb () const |
| bool | get_supports_timer_query () const |
| bool | get_supports_two_sided_stencil () const |
| Texture::QualityLevel | get_texture_quality_override () const |
| const GraphicsThreadingModel & | get_threading_model () const |
| Returns the threading model that was used to create this GSG. More... | |
| bool | get_timer_queries_active () const |
| virtual TypeHandle | get_type () const |
| virtual bool | has_extension (const std::string &extension) const |
| Returns true if the GSG implements the extension identified by the given string. More... | |
| bool | is_active () const |
| bool | is_hardware () const |
| Returns true if this GSG appears to be hardware-accelerated, or false if it is known to be software only. More... | |
| bool | is_valid () const |
| void | mark_new () |
| Marks the GSG as "new", so that the next call to reset_if_new() will be effective. More... | |
| bool | needs_reset () const |
| Returns true if the gsg is marked as needing a reset. More... | |
| virtual bool | prefers_triangle_strips () const |
| Returns true if this GSG strongly prefers triangle strips to individual triangles (such as SGI), or false if it prefers to minimize the number of primitive batches, even at the expense of triangle strips (such as most PC hardware). More... | |
| virtual void | prepare_display_region (DisplayRegionPipelineReader *dr) |
| Makes the specified DisplayRegion current. More... | |
| virtual GeomContext * | prepare_geom (Geom *geom) |
| Prepares the indicated Geom for retained-mode rendering, by creating whatever structures are necessary in the GSG (for instance, vertex buffers). More... | |
| virtual IndexBufferContext * | prepare_index_buffer (GeomPrimitive *data) |
| Prepares the indicated buffer for retained-mode rendering. More... | |
| virtual bool | prepare_lens () |
| Makes the current lens (whichever lens was most recently specified with set_scene()) active, so that it will transform future rendered geometry. More... | |
| virtual SamplerContext * | prepare_sampler (const SamplerState &sampler) |
| Creates whatever structures the GSG requires to represent the sampler internally, and returns a newly-allocated SamplerContext object with this data. More... | |
| virtual ShaderContext * | prepare_shader (Shader *shader) |
| Compile a vertex/fragment shader body. More... | |
| virtual BufferContext * | prepare_shader_buffer (ShaderBuffer *data) |
| Prepares the indicated buffer for retained-mode rendering. More... | |
| virtual TextureContext * | prepare_texture (Texture *tex, int view) |
| Creates whatever structures the GSG requires to represent the texture internally, and returns a newly-allocated TextureContext object with this data. More... | |
| virtual VertexBufferContext * | prepare_vertex_buffer (GeomVertexArrayData *data) |
| Prepares the indicated buffer for retained-mode rendering. More... | |
| virtual | PT (OcclusionQueryContext) end_occlusion_query() |
| virtual | PT (TimerQueryContext) issue_timer_query(int pstats_index) |
| virtual | PT (GeomMunger) get_geom_munger(const RenderState *state |
| virtual | PT (GeomMunger) make_geom_munger(const RenderState *state |
| PT (Texture) get_shadow_map(const NodePath &light_np | |
| void | release_all () |
| Releases all prepared objects. More... | |
| int | release_all_geoms () |
| Frees the resources for all geoms associated with this GSG. More... | |
| int | release_all_index_buffers () |
| Frees the resources for all index buffers associated with this GSG. More... | |
| int | release_all_samplers () |
| Frees the resources for all samplers associated with this GSG. More... | |
| int | release_all_shader_buffers () |
| Frees the resources for all index buffers associated with this GSG. More... | |
| int | release_all_textures () |
| Frees the resources for all textures associated with this GSG. More... | |
| int | release_all_vertex_buffers () |
| Frees the resources for all vertex buffers associated with this GSG. More... | |
| virtual void | release_geom (GeomContext *gc) |
| Frees the resources previously allocated via a call to prepare_geom(), including deleting the GeomContext itself, if it is non-NULL. More... | |
| virtual void | release_index_buffer (IndexBufferContext *ibc) |
| Frees the resources previously allocated via a call to prepare_data(), including deleting the IndexBufferContext itself, if necessary. More... | |
| virtual void | release_sampler (SamplerContext *sc) |
| Frees the resources previously allocated via a call to prepare_sampler(), including deleting the SamplerContext itself, if it is non-NULL. More... | |
| virtual void | release_shader (ShaderContext *sc) |
| Releases the resources allocated by prepare_shader. More... | |
| virtual void | release_shader_buffer (BufferContext *ibc) |
| Frees the resources previously allocated via a call to prepare_data(), including deleting the BufferContext itself, if necessary. More... | |
| virtual void | release_texture (TextureContext *tc) |
| Frees the resources previously allocated via a call to prepare_texture(), including deleting the TextureContext itself, if it is non-NULL. More... | |
| virtual void | release_vertex_buffer (VertexBufferContext *vbc) |
| Frees the resources previously allocated via a call to prepare_data(), including deleting the VertexBufferContext itself, if necessary. More... | |
| virtual void | remove_window (GraphicsOutputBase *window) |
| This is simply a transparent call to GraphicsEngine::remove_window(). More... | |
| virtual void | reset () |
| Resets all internal state as if the gsg were newly created. More... | |
| bool | reset_if_new () |
| Calls reset() to initialize the GSG, but only if it hasn't been called yet. More... | |
| virtual void | restore_gamma () |
| Restore original gamma setting. More... | |
| void | set_active (bool active) |
| void | set_coordinate_system (CoordinateSystem cs) |
| void | set_current_properties (const FrameBufferProperties *properties) |
| void | set_flash_texture (Texture *tex) |
| virtual bool | set_gamma (PN_stdfloat gamma) |
| void | set_incomplete_render (bool incomplete_render) |
| void | set_loader (Loader *loader) |
| bool | set_scene (SceneSetup *scene_setup) |
| void | set_shader_generator (ShaderGenerator *shader_generator) |
| void | set_shader_model (ShaderModel shader_model) |
| virtual void | set_state_and_transform (const RenderState *state, const TransformState *transform) |
| Simultaneously resets the render state and the transform state. More... | |
| void | set_texture_quality_override (Texture::QualityLevel quality_level) |
| void | traverse_prepared_textures (TextureCallback *func, void *callback_arg) |
| Calls the indicated function on all currently-prepared textures, or until the callback function returns false. More... | |
| virtual bool | update_texture (TextureContext *tc, bool force) |
| Ensures that the current Texture data is refreshed onto the GSG. More... | |
 Public Member Functions inherited from GraphicsStateGuardianBase | |
| virtual void | pop_group_marker () |
| virtual void | push_group_marker (const std::string &marker) |
| Public Member Functions inherited from TypedWritableReferenceCount | |
| TypedWritableReferenceCount (const TypedWritableReferenceCount ©) | |
| virtual ReferenceCount * | as_reference_count () |
| Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More... | |
| void | operator= (const TypedWritableReferenceCount ©) |
| Public Member Functions inherited from TypedWritable | |
| TypedWritable (const TypedWritable ©) | |
| virtual int | complete_pointers (TypedWritable **p_list, BamReader *manager) |
| Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More... | |
| vector_uchar | encode_to_bam_stream () const |
| Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More... | |
| bool | encode_to_bam_stream (vector_uchar &data, BamWriter *writer=nullptr) const |
| Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More... | |
| virtual void | fillin (DatagramIterator &scan, BamReader *manager) |
| This internal function is intended to be called by each class's make_from_bam() method to read in all of the relevant data from the BamFile for the new object. More... | |
| virtual void | finalize (BamReader *manager) |
| Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed. More... | |
| UpdateSeq | get_bam_modified () const |
| Returns the current bam_modified counter. More... | |
| void | mark_bam_modified () |
| Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More... | |
| void | operator= (const TypedWritable ©) |
| virtual bool | require_fully_complete () const |
| Some objects require all of their nested pointers to have been completed before the objects themselves can be completed. More... | |
| virtual void | update_bam_nested (BamWriter *manager) |
| Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates. More... | |
| virtual void | write_datagram (BamWriter *manager, Datagram &dg) |
| Writes the contents of this object to the datagram for shipping out to a Bam file. More... | |
| Public Member Functions inherited from TypedObject | |
| TypedObject (const TypedObject ©)=default | |
| TypedObject * | as_typed_object () |
| Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
| const TypedObject * | as_typed_object () const |
| Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
| int | get_best_parent_from_Set (const std::set< int > &) const |
| int | get_type_index () const |
| Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More... | |
| bool | is_exact_type (TypeHandle handle) const |
| Returns true if the current object is the indicated type exactly. More... | |
| bool | is_of_type (TypeHandle handle) const |
| Returns true if the current object is or derives from the indicated type. More... | |
| TypedObject & | operator= (const TypedObject ©)=default |
| Public Member Functions inherited from ReferenceCount | |
| int | get_ref_count () const |
| WeakReferenceList * | get_weak_list () const |
| Returns the WeakReferenceList associated with this ReferenceCount object. More... | |
| bool | has_weak_list () const |
| Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More... | |
| void | local_object () |
| This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More... | |
| void | ref () const |
| Explicitly increments the reference count. More... | |
| bool | ref_if_nonzero () const |
| Atomically increases the reference count of this object if it is not zero. More... | |
| bool | test_ref_count_integrity () const |
| Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
| bool | test_ref_count_nonzero () const |
| Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More... | |
| virtual bool | unref () const |
| Explicitly decrements the reference count. More... | |
| WeakReferenceList * | weak_ref () |
| Adds the indicated PointerToVoid as a weak reference to this object. More... | |
| void | weak_unref () |
| Removes the indicated PointerToVoid as a weak reference to this object. More... | |
Static Public Member Functions | |
| static void | create_gamma_table (PN_stdfloat gamma, unsigned short *red_table, unsigned short *green_table, unsigned short *blue_table) |
| Create a gamma table. More... | |
| static TextureStage * | get_alpha_scale_texture_stage () |
| Returns the TextureStage that will be used to apply an alpha scale, if get_alpha_scale_via_texture() returns true. More... | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from GraphicsStateGuardianBase | |
| static void | add_gsg (GraphicsStateGuardianBase *gsg) |
| Called by a GSG after it has been initialized, to add a new GSG to the available list. More... | |
| static TypeHandle | get_class_type () |
| static GraphicsStateGuardianBase * | get_default_gsg () |
| Returns a pointer to the "default" GSG. More... | |
| static GraphicsStateGuardianBase * | get_gsg (size_t n) |
| static size_t | get_num_gsgs () |
| static void | init_type () |
| static void | mark_rehash_generated_shaders () |
| static void | remove_gsg (GraphicsStateGuardianBase *gsg) |
| Called by a GSG destructor to remove a GSG from the available list. More... | |
| static void | set_default_gsg (GraphicsStateGuardianBase *default_gsg) |
| Specifies a particular GSG to use as the "default" GSG. More... | |
| Static Public Member Functions inherited from TypedWritableReferenceCount | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| static | PT (TypedWritableReferenceCount) decode_from_bam_stream(vector_uchar data |
| Static Public Member Functions inherited from TypedWritable | |
| static bool | decode_raw_from_bam_stream (TypedWritable *&ptr, ReferenceCount *&ref_ptr, vector_uchar data, BamReader *reader=nullptr) |
| Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts the single object on those bytes. More... | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from TypedObject | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| This function is declared non-inline to work around a compiler bug in g++ 2.96. More... | |
| Static Public Member Functions inherited from ReferenceCount | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
Public Attributes | |
| virtual Thread * | current_thread |
| get_coordinate_system | |
| Returns the coordinate system in effect on this particular gsg. More... | |
| get_copy_texture_inverted | |
| Returns true if this particular GSG has the property that any framebuffer- to-texture copy results in a texture that is upside-down and backwards from Panda's usual convention; that is, it copies into a texture from the bottom up instead of from the top down. More... | |
| get_driver_renderer | |
| Returns GL_Renderer. More... | |
| get_driver_shader_version_major | |
| Returns the major version of the shader model. More... | |
| get_driver_shader_version_minor | |
| Returns the minor version of the shader model. More... | |
| get_driver_vendor | |
| Returns the vendor of the video card driver. More... | |
| get_driver_version | |
| Returns driver version This has an implementation-defined meaning, and may be "" if the particular graphics implementation does not provide a way to query this information. More... | |
| get_driver_version_major | |
| Returns major version of the video driver. More... | |
| get_driver_version_minor | |
| Returns the minor version of the video driver. More... | |
| get_effective_incomplete_render | |
| Returns true if the GSG is effectively in incomplete_render state, considering both the GSG's incomplete_render and its current DisplayRegion's incomplete_render flags. More... | |
| get_flash_texture | |
| Returns the current "flash texture", if any, or NULL if none. More... | |
| get_gamma | |
| Get the current gamma setting. More... | |
| get_incomplete_render | |
| Returns the incomplete_render flag. More... | |
| get_loader | |
| Returns the Loader object that will be used by this GSG to load textures when necessary, if get_incomplete_render() is true. More... | |
| get_max_2d_texture_array_layers | |
| Returns the largest possible number of pages, or -1 if there is no particular limit. More... | |
| get_max_3d_texture_dimension | |
| Returns the largest possible texture size in any one dimension for a 3-d texture, or -1 if there is no particular limit. More... | |
| get_max_buffer_texture_size | |
| Returns the largest possible buffer texture size, or -1 if there is no particular limit. More... | |
| get_max_clip_planes | |
| Returns the maximum number of simultaneous clip planes that may be applied to geometry, or -1 if there is no particular limit. More... | |
| get_max_color_targets | |
| Returns the maximum number of simultaneous color textures that may be attached for render-to-texture, as supported by this particular GSG. More... | |
| get_max_cube_map_dimension | |
| Returns the largest possible texture size in any one dimension for a cube map texture, or -1 if there is no particular limit. More... | |
| get_max_lights | |
| Returns the maximum number of simultaneous lights that may be rendered on geometry, or -1 if there is no particular limit. More... | |
| get_max_texture_dimension | |
| Returns the largest possible texture size in any one dimension supported by the GSG, or -1 if there is no particular limit. More... | |
| get_max_texture_stages | |
| Returns the maximum number of simultaneous textures that may be applied to geometry with multitexturing, as supported by this particular GSG. More... | |
| get_max_vertex_transform_indices | |
| Returns the maximum number of transforms there may be in a single TransformTable for this graphics hardware. More... | |
| get_max_vertex_transforms | |
| Returns the maximum number of transform matrices that may be simultaneously used to transform any one vertex by the graphics hardware. More... | |
| get_max_vertices_per_array | |
| Returns the maximum number of vertices that should be put into any one GeomVertexData object for use with this GSG. More... | |
| get_max_vertices_per_primitive | |
| Returns the maximum number of vertex indices that should be put into any one GeomPrimitive object for use with this GSG. More... | |
| get_pipe | |
| Returns the graphics pipe on which this GSG was created. More... | |
| get_prepared_objects | |
| Returns the set of texture and geom objects that have been prepared with this GSG (and possibly other GSG's that share objects). More... | |
| get_scene | |
| Returns the current SceneSetup object. More... | |
| get_shader_generator | |
| Returns the ShaderGenerator object that will be used by this GSG to generate shaders when necessary. More... | |
| get_shader_model | |
| Returns the ShaderModel. More... | |
| get_supports_2d_texture_array | |
| Returns true if this GSG can render 2-d textures array. More... | |
| get_supports_3d_texture | |
| Returns true if this GSG can render 3-d (volumetric) textures. More... | |
| get_supports_basic_shaders | |
| Returns true if this particular GSG supports arbfp1+arbvp1 or above. More... | |
| get_supports_buffer_texture | |
| Returns true if this GSG can render buffer textures. More... | |
| get_supports_compressed_texture | |
| Returns true if this GSG can compress textures as it loads them into texture memory, and/or accept pre-compressed textures for storing. More... | |
| get_supports_compute_shaders | |
| Returns true if this particular GSG supports compute shaders. More... | |
| get_supports_cube_map | |
| Returns true if this GSG can render cube map textures. More... | |
| get_supports_cube_map_array | |
| Returns true if this GSG can render cube map arrays. More... | |
| get_supports_depth_stencil | |
| Returns true if this particular GSG supports textures whose format is F_depth_stencil. More... | |
| get_supports_depth_texture | |
| Returns true if this particular GSG supports textures whose format is F_depth_stencil. More... | |
| get_supports_dual_source_blending | |
| Returns true if dual source (incoming1_color and incoming1_alpha) blend operands are supported by this GSG. More... | |
| get_supports_generate_mipmap | |
| Returns true if this particular GSG can generate mipmaps for a texture automatically, or if they must be generated in software. More... | |
| get_supports_geometry_instancing | |
| Returns true if this particular GSG supports hardware geometry instancing: the ability to render multiple copies of a model. More... | |
| get_supports_geometry_shaders | |
| Returns true if this particular GSG supports geometry shaders. More... | |
| get_supports_glsl | |
| Returns true if this particular GSG supports GLSL shaders. More... | |
| get_supports_hlsl | |
| Returns true if this particular GSG supports HLSL shaders. More... | |
| get_supports_indirect_draw | |
| Returns true if this particular GSG supports draw calls for which the information comes from a buffer. More... | |
| get_supports_luminance_texture | |
| Returns true if this particular GSG supports luminance textures. More... | |
| get_supports_multisample | |
| Returns true if this particular GSG supports using the multisample bits to provide antialiasing, and also supports M_multisample and M_multisample_mask transparency modes. More... | |
| get_supports_occlusion_query | |
| Returns true if this GSG supports an occlusion query. More... | |
| get_supports_sampler_objects | |
| Returns true if this particular GSG supports the use of sampler objects to record texture sampling parameters separately from the texture objects. More... | |
| get_supports_shadow_filter | |
| Returns true if this particular GSG supports the filter mode FT_shadow for depth textures. More... | |
| get_supports_stencil | |
| Returns true if this particular GSG supports stencil buffers at all. More... | |
| get_supports_tessellation_shaders | |
| Returns true if this particular GSG supports tesselation shaders. More... | |
| get_supports_tex_non_pow2 | |
| Returns true if this GSG can handle non power of two sized textures. More... | |
| get_supports_texture_combine | |
| Returns true if this particular GSG can use the TextureStage::M_combine mode, which includes all of the texture blend modes specified by set_combine_rgb() and/or set_combine_alpha(). More... | |
| get_supports_texture_dot3 | |
| Returns true if this GSG can use the TextureStage::CM_dot3_rgb or CM_dot3_rgba combine modes. More... | |
| get_supports_texture_saved_result | |
| Returns true if this GSG can use the TextureStage::CS_last_saved_result source, which allows you to save the result of a TextureStage and re-use it for multiple inputs. More... | |
| get_supports_texture_srgb | |
| Returns true if this GSG can handle sRGB textures. More... | |
| get_supports_timer_query | |
| Returns true if this GSG supports a timer query. More... | |
| get_supports_two_sided_stencil | |
| Returns true if this particular GSG supports two sided stencil: different stencil settings for the front and back side of the same polygon. More... | |
| get_texture_quality_override | |
| Returns the global quality_level override specified by set_texture_quality_override. More... | |
| get_timer_queries_active | |
| Returns true if timer queries are currently enabled on this GSG. More... | |
| GraphicsOutputBase * | host =nullptr) |
| is_active | |
| Returns the active flag associated with the GraphicsStateGuardian. More... | |
| is_valid | |
| Returns true if the GSG has been correctly initialized within a graphics context, false if there has been some problem or it hasn't been initialized yet. More... | |
| set_active | |
| Sets the active flag associated with the GraphicsStateGuardian. More... | |
| set_coordinate_system | |
| Changes the coordinate system in effect on this particular gsg. More... | |
| set_flash_texture | |
| Sets the "flash texture". More... | |
| set_gamma | |
| Set gamma. More... | |
| set_incomplete_render | |
| Sets the incomplete_render flag. More... | |
| set_loader | |
| Sets the Loader object that will be used by this GSG to load textures when necessary, if get_incomplete_render() is true. More... | |
| set_scene | |
| Sets the SceneSetup object that indicates the initial camera position, etc. More... | |
| set_shader_generator | |
| Sets the ShaderGenerator object that will be used by this GSG to generate shaders when necessary. More... | |
| set_shader_model | |
| Sets the ShaderModel. More... | |
| set_texture_quality_override | |
| Specifies the global quality_level to be imposed for all Textures rendered by this GSG. More... | |
| Public Attributes inherited from GraphicsStateGuardianBase | |
| size_t | _id |
| virtual Thread * | current_thread =0 |
| get_gsg | |
| Returns the nth GSG in the universe. More... | |
| get_num_gsgs | |
| Returns the total number of GSG's in the universe. More... | |
| Public Attributes inherited from TypedWritableReferenceCount | |
| static BamReader * | reader = nullptr) |
| Public Attributes inherited from TypedObject | |
| get_type | |
| Public Attributes inherited from ReferenceCount | |
| get_ref_count | |
| Returns the current reference count. More... | |
Static Public Attributes | |
| static PStatCollector | _command_latency_pcollector |
| static PStatCollector | _compute_dispatch_pcollector |
| static PStatCollector | _create_index_buffer_pcollector |
| static PStatCollector | _create_shader_buffer_pcollector |
| static PStatCollector | _create_vertex_buffer_pcollector |
| static PStatCollector | _data_transferred_pcollector |
| static PStatCollector | _draw_primitive_pcollector |
| static PStatCollector | _draw_set_state_alpha_test_pcollector |
| static PStatCollector | _draw_set_state_antialias_pcollector |
| static PStatCollector | _draw_set_state_blending_pcollector |
| static PStatCollector | _draw_set_state_clip_plane_pcollector |
| static PStatCollector | _draw_set_state_color_pcollector |
| static PStatCollector | _draw_set_state_cull_face_pcollector |
| static PStatCollector | _draw_set_state_depth_offset_pcollector |
| static PStatCollector | _draw_set_state_depth_test_pcollector |
| static PStatCollector | _draw_set_state_depth_write_pcollector |
| static PStatCollector | _draw_set_state_fog_pcollector |
| static PStatCollector | _draw_set_state_light_pcollector |
| static PStatCollector | _draw_set_state_material_pcollector |
| static PStatCollector | _draw_set_state_pcollector |
| static PStatCollector | _draw_set_state_render_mode_pcollector |
| static PStatCollector | _draw_set_state_rescale_normal_pcollector |
| static PStatCollector | _draw_set_state_scissor_pcollector |
| static PStatCollector | _draw_set_state_shade_model_pcollector |
| static PStatCollector | _draw_set_state_shader_parameters_pcollector |
| static PStatCollector | _draw_set_state_shader_pcollector |
| static PStatCollector | _draw_set_state_stencil_pcollector |
| static PStatCollector | _draw_set_state_tex_gen_pcollector |
| static PStatCollector | _draw_set_state_tex_matrix_pcollector |
| static PStatCollector | _draw_set_state_texture_pcollector |
| static PStatCollector | _draw_set_state_transform_pcollector |
| static PStatCollector | _flush_pcollector |
| static PStatCollector | _index_buffer_switch_pcollector |
| static PStatCollector | _load_index_buffer_pcollector |
| static PStatCollector | _load_shader_buffer_pcollector |
| static PStatCollector | _load_texture_pcollector |
| static PStatCollector | _load_vertex_buffer_pcollector |
| static PStatCollector | _prepare_geom_pcollector |
| static PStatCollector | _prepare_index_buffer_pcollector |
| static PStatCollector | _prepare_pcollector |
| static PStatCollector | _prepare_sampler_pcollector |
| static PStatCollector | _prepare_shader_buffer_pcollector |
| static PStatCollector | _prepare_shader_pcollector |
| static PStatCollector | _prepare_texture_pcollector |
| static PStatCollector | _prepare_vertex_buffer_pcollector |
| static PStatCollector | _primitive_batches_other_pcollector |
| static PStatCollector | _primitive_batches_patch_pcollector |
| static PStatCollector | _primitive_batches_pcollector |
| static PStatCollector | _primitive_batches_tri_pcollector |
| static PStatCollector | _primitive_batches_trifan_pcollector |
| static PStatCollector | _primitive_batches_tristrip_pcollector |
| static PStatCollector | _shader_buffer_switch_pcollector |
| static PStatCollector | _state_pcollector |
| static PStatCollector | _texmgrmem_resident_pcollector |
| static PStatCollector | _texmgrmem_total_pcollector |
| static PStatCollector | _texture_state_pcollector |
| static PStatCollector | _timer_queries_pcollector |
| static PStatCollector | _transform_state_pcollector |
| static PStatCollector | _vertex_buffer_switch_pcollector |
| static PStatCollector | _vertices_indexed_tristrip_pcollector |
| static PStatCollector | _vertices_other_pcollector |
| static PStatCollector | _vertices_patch_pcollector |
| static PStatCollector | _vertices_tri_pcollector |
| static PStatCollector | _vertices_trifan_pcollector |
| static PStatCollector | _vertices_tristrip_pcollector |
| static PStatCollector | _wait_occlusion_pcollector |
| static PStatCollector | _wait_timer_pcollector |
| Static Public Attributes inherited from TypedWritable | |
| static TypedWritable *const | Null = nullptr |
Friends | |
| class | GraphicsEngine |
| class | GraphicsPipe |
| class | GraphicsWindow |
Detailed Description
Encapsulates all the communication with a particular instance of a given rendering backend.
Tries to guarantee that redundant state-change requests are not issued (hence "state guardian").
There will be one of these objects for each different graphics context active in the system.
Definition at line 65 of file graphicsStateGuardian.h.
Member Function Documentation
◆ begin_draw_primitives()
|
virtual |
Called before a sequence of draw_primitive() functions are called, this should prepare the vertex data for rendering.
It returns true if the vertices are ok, false to abort this group of primitives.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2376 of file graphicsStateGuardian.cxx.
Referenced by DXGraphicsStateGuardian9::begin_draw_primitives().
◆ begin_frame()
|
virtual |
Called before each frame is rendered, to allow the GSG a chance to do any internal cleanup before beginning the frame.
The return value is true if successful (in which case the frame will be drawn and end_frame() will be called later), or false if unsuccessful (in which case nothing will be drawn and end_frame() will not be called).
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2042 of file graphicsStateGuardian.cxx.
References BitMask< WType, nbits >::clear(), flush_timer_queries(), ClockObject::get_frame_count, and ClockObject::get_global_clock().
Referenced by DXGraphicsStateGuardian9::begin_frame().
◆ begin_occlusion_query()
|
virtual |
Begins a new occlusion query.
After this call, you may call begin_draw_primitives() and draw_triangles()/draw_whatever() repeatedly. Eventually, you should call end_occlusion_query() before the end of the frame; that will return a new OcclusionQueryContext object that will tell you how many pixels represented by the bracketed geometry passed the depth test.
It is not valid to call begin_occlusion_query() between another begin_occlusion_query() .. end_occlusion_query() sequence.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 713 of file graphicsStateGuardian.cxx.
Referenced by PT().
◆ begin_scene()
|
virtual |
Called between begin_frame() and end_frame() to mark the beginning of drawing commands for a "scene" (usually a particular DisplayRegion) within a frame.
All 3-D drawing commands, except the clear operation, must be enclosed within begin_scene() .. end_scene(). This must be called in the draw thread.
The return value is true if successful (in which case the scene will be drawn and end_scene() will be called later), or false if unsuccessful (in which case nothing will be drawn and end_scene() will not be called).
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2090 of file graphicsStateGuardian.cxx.
Referenced by DXGraphicsStateGuardian9::begin_scene(), and DisplayRegionDrawCallbackData::upcall().
◆ bind_light() [1/3]
|
virtual |
Called the first time a particular light has been bound to a given id within a frame, this should set up the associated hardware light with the light's properties.
Reimplemented from GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2866 of file graphicsStateGuardian.cxx.
◆ bind_light() [2/3]
|
virtual |
Called the first time a particular light has been bound to a given id within a frame, this should set up the associated hardware light with the light's properties.
Reimplemented from GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2875 of file graphicsStateGuardian.cxx.
◆ bind_light() [3/3]
|
virtual |
Called the first time a particular light has been bound to a given id within a frame, this should set up the associated hardware light with the light's properties.
Reimplemented from GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2884 of file graphicsStateGuardian.cxx.
◆ clear()
|
virtual |
Clears the framebuffer within the current DisplayRegion, according to the flags indicated by the given DrawableRegion object.
This does not set the DisplayRegion first. You should call prepare_display_region() to specify the region you wish the clear operation to apply to.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2553 of file graphicsStateGuardian.cxx.
◆ clear_before_callback()
|
virtual |
Resets any non-standard graphics state that might give a callback apoplexy.
Some drivers require that the graphics state be restored to neutral before performing certain operations. In OpenGL, for instance, this closes any open vertex buffers.
Implements GraphicsStateGuardianBase.
Definition at line 1970 of file graphicsStateGuardian.cxx.
◆ clear_flash_texture()
| void GraphicsStateGuardian::clear_flash_texture | ( | ) |
Resets the "flash texture", so that no textures will flash.
See set_flash_texture().
Definition at line 494 of file graphicsStateGuardian.cxx.
◆ clear_state_and_transform()
|
virtual |
Forgets the current graphics state and current transform, so that the next call to set_state_and_transform() will have to reload everything.
This is a good thing to call when you are no longer sure what the graphics state is. This should only be called from the draw thread.
Implements GraphicsStateGuardianBase.
Definition at line 1980 of file graphicsStateGuardian.cxx.
References BitMask< WType, nbits >::clear().
Referenced by DisplayRegionDrawCallbackData::upcall().
◆ compute_distance_to()
|
virtual |
This function will compute the distance to the indicated point, assumed to be in eye coordinates, from the camera plane.
The point is assumed to be in the GSG's internal coordinate system.
Implements GraphicsStateGuardianBase.
Definition at line 811 of file graphicsStateGuardian.cxx.
◆ create_gamma_table()
|
static |
Create a gamma table.
Definition at line 2922 of file graphicsStateGuardian.cxx.
◆ depth_offset_decals()
|
virtual |
Returns true if this GSG can implement decals using a DepthOffsetAttrib, or false if that is unreliable and the three-step rendering process should be used instead.
Implements GraphicsStateGuardianBase.
Definition at line 2293 of file graphicsStateGuardian.cxx.
◆ dispatch_compute()
|
virtual |
Dispatches a currently bound compute shader using the given work group counts.
Implements GraphicsStateGuardianBase.
Definition at line 745 of file graphicsStateGuardian.cxx.
◆ do_issue_color()
| void GraphicsStateGuardian::do_issue_color | ( | ) |
This method is defined in the base class because it is likely that this functionality will be used for all (or at least most) kinds of GraphicsStateGuardians–it's not specific to any one rendering backend.
The ColorAttribute just changes the interpretation of the color on the vertices, and fiddles with _vertex_colors_enabled, etc.
Definition at line 2663 of file graphicsStateGuardian.cxx.
References BitMask< WType, nbits >::clear_bit(), ColorAttrib::get_color, and ColorAttrib::get_color_type.
Referenced by DXGraphicsStateGuardian9::set_state_and_transform().
◆ do_issue_light()
|
virtual |
This implementation of do_issue_light() assumes we have a limited number of hardware lights available.
This function assigns each light to a different hardware light id, trying to keep each light associated with the same id where possible, but reusing id's when necessary. When it is no longer possible to reuse existing id's (e.g. all id's are in use), the next sequential id is assigned (if available).
It will call apply_light() each time a light is assigned to a particular id for the first time in a given frame, and it will subsequently call enable_light() to enable or disable each light as the frame is rendered, as well as enable_lighting() to enable or disable overall lighting.
Definition at line 2757 of file graphicsStateGuardian.cxx.
Referenced by DXGraphicsStateGuardian9::set_state_and_transform().
◆ draw_lines()
|
virtual |
Draws a series of disconnected line segments.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2440 of file graphicsStateGuardian.cxx.
◆ draw_lines_adj()
|
virtual |
Draws a series of disconnected line segments with adjacency information.
Implements GraphicsStateGuardianBase.
Definition at line 2448 of file graphicsStateGuardian.cxx.
◆ draw_linestrips()
|
virtual |
Draws a series of line strips.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2456 of file graphicsStateGuardian.cxx.
◆ draw_linestrips_adj()
|
virtual |
Draws a series of line strips with adjacency information.
Implements GraphicsStateGuardianBase.
Definition at line 2464 of file graphicsStateGuardian.cxx.
◆ draw_patches()
|
virtual |
Draws a series of "patches", which can only be processed by a tessellation shader.
Implements GraphicsStateGuardianBase.
Definition at line 2432 of file graphicsStateGuardian.cxx.
◆ draw_points()
|
virtual |
Draws a series of disconnected points.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2472 of file graphicsStateGuardian.cxx.
◆ draw_triangles()
|
virtual |
Draws a series of disconnected triangles.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2390 of file graphicsStateGuardian.cxx.
◆ draw_triangles_adj()
|
virtual |
Draws a series of disconnected triangles with adjacency information.
Implements GraphicsStateGuardianBase.
Definition at line 2399 of file graphicsStateGuardian.cxx.
◆ draw_trifans()
|
virtual |
Draws a series of triangle fans.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2423 of file graphicsStateGuardian.cxx.
◆ draw_tristrips()
|
virtual |
Draws a series of triangle strips.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2407 of file graphicsStateGuardian.cxx.
◆ draw_tristrips_adj()
|
virtual |
Draws a series of triangle strips with adjacency information.
Implements GraphicsStateGuardianBase.
Definition at line 2415 of file graphicsStateGuardian.cxx.
◆ end_draw_primitives()
|
virtual |
Called after a sequence of draw_primitive() functions are called, this should do whatever cleanup is appropriate.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2481 of file graphicsStateGuardian.cxx.
◆ end_frame()
|
virtual |
Called after each frame is rendered, to allow the GSG a chance to do any internal cleanup after rendering the frame, and before the window flips.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2133 of file graphicsStateGuardian.cxx.
◆ end_scene()
|
virtual |
Called between begin_frame() and end_frame() to mark the end of drawing commands for a "scene" (usually a particular DisplayRegion) within a frame.
All 3-D drawing commands, except the clear operation, must be enclosed within begin_scene() .. end_scene().
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2101 of file graphicsStateGuardian.cxx.
Referenced by DXGraphicsStateGuardian9::end_scene(), PipeOcclusionCullTraverser::end_traverse(), and DisplayRegionDrawCallbackData::upcall().
◆ ensure_generated_shader()
|
virtual |
Ensures that an appropriate shader has been generated for the given state.
This is stored in the _generated_shader field on the RenderState.
Implements GraphicsStateGuardianBase.
Definition at line 3420 of file graphicsStateGuardian.cxx.
References ShaderAttrib::auto_shader(), and GeomVertexAnimationSpec::set_hardware().
◆ extract_texture_data()
|
virtual |
This method should only be called by the GraphicsEngine.
Do not call it directly; call GraphicsEngine::extract_texture_data() instead.
This method will be called in the draw thread to download the texture memory's image into its ram_image value. It returns true on success, false otherwise.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 589 of file graphicsStateGuardian.cxx.
Referenced by GraphicsEngine::extract_texture_data().
◆ fetch_specified_member()
| const LMatrix4 * GraphicsStateGuardian::fetch_specified_member | ( | const NodePath & | np, |
| CPT_InternalName | member, | ||
| LMatrix4 & | t | ||
| ) |
Given a NodePath passed into a shader input that is a structure, fetches the value for the given member.
Definition at line 1512 of file graphicsStateGuardian.cxx.
References PandaNode::as_light(), NodePath::is_empty(), and NodePath::node().
◆ fetch_specified_part()
| const LMatrix4 * GraphicsStateGuardian::fetch_specified_part | ( | Shader::ShaderMatInput | input, |
| InternalName * | name, | ||
| LMatrix4 & | t, | ||
| int | index | ||
| ) |
See fetch_specified_value.
Definition at line 918 of file graphicsStateGuardian.cxx.
References ClockObject::get_dt, ClockObject::get_frame_time, and ClockObject::get_global_clock().
Referenced by fetch_specified_value().
◆ fetch_specified_value()
| const LMatrix4 * GraphicsStateGuardian::fetch_specified_value | ( | Shader::ShaderMatSpec & | spec, |
| int | altered | ||
| ) |
The gsg contains a large number of useful matrices:
* the world transform, * the modelview matrix, * the cs_transform, * etc, etc.
A shader can request any of these values, and furthermore, it can request that various compositions, inverses, and transposes be performed. The ShaderMatSpec is a data structure indicating what datum is desired and what conversions to perform. This routine, fetch_specified_value, is responsible for doing the actual retrieval and conversions.
Some values, like the following, aren't matrices:
* window size * texture coordinates of card center
This routine can fetch these values as well, by shoehorning them into a matrix. In this way, we avoid the need for a separate routine to fetch these values.
The "altered" bits indicate what parts of the state_and_transform have changed since the last time this particular ShaderMatSpec was evaluated. This may allow data to be cached and not reevaluated.
Definition at line 859 of file graphicsStateGuardian.cxx.
References fetch_specified_part().
◆ finish_decal()
|
virtual |
Called during draw to clean up after decals are finished.
Implements GraphicsStateGuardianBase.
Definition at line 2366 of file graphicsStateGuardian.cxx.
◆ flush_timer_queries()
| void GraphicsStateGuardian::flush_timer_queries | ( | ) |
Called by the graphics engine on the draw thread to check the status of the running timer queries and submit their results to the PStats server.
Definition at line 2165 of file graphicsStateGuardian.cxx.
Referenced by begin_frame().
◆ framebuffer_copy_to_ram()
|
virtual |
Copy the pixels within the indicated display region from the framebuffer into system memory, not texture memory.
Returns true on success, false on failure.
This completely redefines the ram image of the indicated texture.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2855 of file graphicsStateGuardian.cxx.
◆ framebuffer_copy_to_texture()
|
virtual |
Copy the pixels within the indicated display region from the framebuffer into texture memory.
If z > -1, it is the cube map index into which to copy.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2841 of file graphicsStateGuardian.cxx.
◆ get_alpha_scale_texture_stage()
|
inlinestatic |
Returns the TextureStage that will be used to apply an alpha scale, if get_alpha_scale_via_texture() returns true.
Definition at line 779 of file graphicsStateGuardian.I.
◆ get_alpha_scale_via_texture() [1/2]
|
inline |
Returns true if this particular GSG can implement (or would prefer to implement) an alpha scale via an additional Texture layer, or false if we need to actually munge the alpha.
Definition at line 756 of file graphicsStateGuardian.I.
Referenced by StandardMunger::StandardMunger().
◆ get_alpha_scale_via_texture() [2/2]
|
inline |
This variant of get_alpha_scale_via_texture() answers the question of whether the GSG can implement an alpha scale via an additional Texture layer, considering the current TextureAttrib that will be in effect.
This considers whether there is at least one additional texture slot available on the GSG.
Definition at line 768 of file graphicsStateGuardian.I.
References get_max_texture_stages, and TextureAttrib::get_num_on_stages.
◆ get_color_scale_via_lighting()
|
inline |
Returns true if this particular GSG can implement (or would prefer to implement) set color and/or color scale using materials and/or ambient lights, or false if we need to actually munge the color.
Definition at line 746 of file graphicsStateGuardian.I.
Referenced by StandardMunger::StandardMunger().
◆ get_engine()
| GraphicsEngine * GraphicsStateGuardian::get_engine | ( | ) | const |
Returns the graphics engine that created this GSG.
Since there is normally only one GraphicsEngine object in an application, this is usually the same as the global GraphicsEngine.
Definition at line 318 of file graphicsStateGuardian.cxx.
◆ get_internal_coordinate_system()
|
virtual |
Returns the coordinate system used internally by the GSG.
This may be the same as the external coordinate system reported by get_coordinate_system(), or it may be something different.
In any case, vertices that have been transformed before being handed to the GSG (that is, vertices with a contents value of C_clip_point) will be expected to be in this coordinate system.
Implements GraphicsStateGuardianBase.
Definition at line 407 of file graphicsStateGuardian.cxx.
◆ get_maximum_simultaneous_render_targets()
|
inline |
Deprecated.
Use get_max_color_targets() instead, which returns the exact same value.
Definition at line 717 of file graphicsStateGuardian.I.
References get_max_color_targets.
◆ get_render_buffer()
| RenderBuffer GraphicsStateGuardian::get_render_buffer | ( | int | buffer_type, |
| const FrameBufferProperties & | prop | ||
| ) |
Returns a RenderBuffer object suitable for operating on the requested set of buffers.
buffer_type is the union of all the desired RenderBuffer::Type values.
Definition at line 2562 of file graphicsStateGuardian.cxx.
References FrameBufferProperties::get_buffer_mask().
◆ get_runtime_color_scale()
|
inline |
Returns true if this particular GSG can implement (or would prefer to implement) set color and/or color scale directly, without requiring any munging of vertices or tricks with lighting.
Definition at line 793 of file graphicsStateGuardian.I.
Referenced by StandardMunger::StandardMunger().
◆ get_supported_geom_rendering()
|
virtual |
Returns the union of Geom::GeomRendering values that this particular GSG can support directly.
If a Geom needs to be rendered that requires some additional properties, the StandardMunger and/or the CullableObject will convert it as needed.
This method is declared virtual solely so that it can be queried from cullableObject.cxx.
Implements GraphicsStateGuardianBase.
Definition at line 347 of file graphicsStateGuardian.cxx.
◆ get_supports_cg_profile()
|
virtual |
Returns true if this particular GSG supports the specified Cg Shader Profile.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 356 of file graphicsStateGuardian.cxx.
◆ get_supports_compressed_texture_format()
|
inlinevirtual |
Returns true if this GSG can accept textures pre-compressed in the indicated format.
compression_mode may be any of the Texture::CompressionMode enums.
Implements GraphicsStateGuardianBase.
Definition at line 429 of file graphicsStateGuardian.I.
References BitMask< WType, nbits >::get_bit().
Referenced by DXGraphicsStateGuardian9::prepare_texture(), and DXGraphicsStateGuardian9::upload_texture().
◆ get_threading_model()
|
inline |
Returns the threading model that was used to create this GSG.
Definition at line 206 of file graphicsStateGuardian.I.
Referenced by GraphicsEngine::extract_texture_data(), and PT().
◆ has_extension()
|
virtual |
Returns true if the GSG implements the extension identified by the given string.
This currently is only implemented by the OpenGL back-end.
Definition at line 3457 of file graphicsStateGuardian.cxx.
◆ is_hardware()
|
inline |
Returns true if this GSG appears to be hardware-accelerated, or false if it is known to be software only.
Definition at line 215 of file graphicsStateGuardian.I.
◆ mark_new()
|
inline |
Marks the GSG as "new", so that the next call to reset_if_new() will be effective.
Definition at line 851 of file graphicsStateGuardian.I.
◆ needs_reset()
|
inline |
Returns true if the gsg is marked as needing a reset.
Definition at line 106 of file graphicsStateGuardian.I.
Referenced by GraphicsEngine::make_output().
◆ prefers_triangle_strips()
|
inlinevirtual |
Returns true if this GSG strongly prefers triangle strips to individual triangles (such as SGI), or false if it prefers to minimize the number of primitive batches, even at the expense of triangle strips (such as most PC hardware).
Implements GraphicsStateGuardianBase.
Definition at line 226 of file graphicsStateGuardian.I.
◆ prepare_display_region()
|
virtual |
Makes the specified DisplayRegion current.
All future drawing and clear operations will be constrained within the given DisplayRegion.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 1917 of file graphicsStateGuardian.cxx.
References GraphicsOutput::get_left_eye_color_mask(), GraphicsOutput::get_right_eye_color_mask(), DisplayRegionPipelineReader::get_stereo_channel(), GraphicsOutput::get_swap_eyes, DisplayRegionPipelineReader::get_tex_view_offset(), and DisplayRegionPipelineReader::get_window().
◆ prepare_geom()
|
virtual |
Prepares the indicated Geom for retained-mode rendering, by creating whatever structures are necessary in the GSG (for instance, vertex buffers).
Returns the newly-allocated GeomContext that can be used to render the geom.
Implements GraphicsStateGuardianBase.
Definition at line 623 of file graphicsStateGuardian.cxx.
◆ prepare_index_buffer()
|
virtual |
Prepares the indicated buffer for retained-mode rendering.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 673 of file graphicsStateGuardian.cxx.
◆ prepare_lens()
|
virtual |
Makes the current lens (whichever lens was most recently specified with set_scene()) active, so that it will transform future rendered geometry.
Normally this is only called from the draw process, and usually it is called by set_scene().
The return value is true if the lens is acceptable, false if it is not.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2011 of file graphicsStateGuardian.cxx.
◆ prepare_sampler()
|
virtual |
Creates whatever structures the GSG requires to represent the sampler internally, and returns a newly-allocated SamplerContext object with this data.
It is the responsibility of the calling function to later call release_sampler() with this same pointer (which will also delete the pointer).
This function should not be called directly to prepare a sampler. Instead, call Texture::prepare().
Implements GraphicsStateGuardianBase.
Definition at line 604 of file graphicsStateGuardian.cxx.
◆ prepare_shader()
|
virtual |
Compile a vertex/fragment shader body.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 642 of file graphicsStateGuardian.cxx.
◆ prepare_shader_buffer()
|
virtual |
Prepares the indicated buffer for retained-mode rendering.
Implements GraphicsStateGuardianBase.
Definition at line 689 of file graphicsStateGuardian.cxx.
◆ prepare_texture()
|
virtual |
Creates whatever structures the GSG requires to represent the texture internally, and returns a newly-allocated TextureContext object with this data.
It is the responsibility of the calling function to later call release_texture() with this same pointer (which will also delete the pointer).
This function should not be called directly to prepare a texture. Instead, call Texture::prepare().
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 553 of file graphicsStateGuardian.cxx.
◆ prepare_vertex_buffer()
|
virtual |
Prepares the indicated buffer for retained-mode rendering.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 657 of file graphicsStateGuardian.cxx.
◆ release_all()
|
inline |
Releases all prepared objects.
Definition at line 21 of file graphicsStateGuardian.I.
◆ release_all_geoms()
|
inline |
Frees the resources for all geoms associated with this GSG.
Definition at line 45 of file graphicsStateGuardian.I.
◆ release_all_index_buffers()
|
inline |
Frees the resources for all index buffers associated with this GSG.
Definition at line 61 of file graphicsStateGuardian.I.
◆ release_all_samplers()
|
inline |
Frees the resources for all samplers associated with this GSG.
Definition at line 37 of file graphicsStateGuardian.I.
◆ release_all_shader_buffers()
|
inline |
Frees the resources for all index buffers associated with this GSG.
Definition at line 69 of file graphicsStateGuardian.I.
◆ release_all_textures()
|
inline |
Frees the resources for all textures associated with this GSG.
Definition at line 29 of file graphicsStateGuardian.I.
◆ release_all_vertex_buffers()
|
inline |
Frees the resources for all vertex buffers associated with this GSG.
Definition at line 53 of file graphicsStateGuardian.I.
◆ release_geom()
|
virtual |
Frees the resources previously allocated via a call to prepare_geom(), including deleting the GeomContext itself, if it is non-NULL.
This function should not be called directly to prepare a Geom. Instead, call Geom::prepare().
Implements GraphicsStateGuardianBase.
Definition at line 635 of file graphicsStateGuardian.cxx.
◆ release_index_buffer()
|
virtual |
Frees the resources previously allocated via a call to prepare_data(), including deleting the IndexBufferContext itself, if necessary.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 682 of file graphicsStateGuardian.cxx.
◆ release_sampler()
|
virtual |
Frees the resources previously allocated via a call to prepare_sampler(), including deleting the SamplerContext itself, if it is non-NULL.
Implements GraphicsStateGuardianBase.
Definition at line 613 of file graphicsStateGuardian.cxx.
◆ release_shader()
|
virtual |
Releases the resources allocated by prepare_shader.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 650 of file graphicsStateGuardian.cxx.
◆ release_shader_buffer()
|
virtual |
Frees the resources previously allocated via a call to prepare_data(), including deleting the BufferContext itself, if necessary.
Implements GraphicsStateGuardianBase.
Definition at line 698 of file graphicsStateGuardian.cxx.
◆ release_texture()
|
virtual |
Frees the resources previously allocated via a call to prepare_texture(), including deleting the TextureContext itself, if it is non-NULL.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 577 of file graphicsStateGuardian.cxx.
◆ release_vertex_buffer()
|
virtual |
Frees the resources previously allocated via a call to prepare_data(), including deleting the VertexBufferContext itself, if necessary.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 666 of file graphicsStateGuardian.cxx.
◆ remove_window()
|
virtual |
This is simply a transparent call to GraphicsEngine::remove_window().
It exists primary to support removing a window from that compiles before the display module, and therefore has no knowledge of a GraphicsEngine object.
Implements GraphicsStateGuardianBase.
Definition at line 1995 of file graphicsStateGuardian.cxx.
◆ reset()
|
virtual |
Resets all internal state as if the gsg were newly created.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2489 of file graphicsStateGuardian.cxx.
References BitMask< WType, nbits >::clear().
Referenced by DXGraphicsStateGuardian9::reset(), and reset_if_new().
◆ reset_if_new()
|
inline |
Calls reset() to initialize the GSG, but only if it hasn't been called yet.
Returns true if the GSG was new, false otherwise.
Definition at line 838 of file graphicsStateGuardian.I.
References reset().
◆ restore_gamma()
|
virtual |
Restore original gamma setting.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 442 of file graphicsStateGuardian.cxx.
◆ set_state_and_transform()
|
virtual |
Simultaneously resets the render state and the transform state.
This transform specified is the "internal" net transform, already converted into the GSG's internal coordinate space by composing it to get_cs_transform(). (Previously, this used to be the "external" net transform, with the assumption that that GSG would convert it internally, but that is no longer the case.)
Special case: if (state==NULL), then the target state is already stored in _target.
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 2540 of file graphicsStateGuardian.cxx.
◆ traverse_prepared_textures()
| void GraphicsStateGuardian::traverse_prepared_textures | ( | GraphicsStateGuardian::TextureCallback * | func, |
| void * | callback_arg | ||
| ) |
Calls the indicated function on all currently-prepared textures, or until the callback function returns false.
Definition at line 450 of file graphicsStateGuardian.cxx.
◆ update_texture()
|
virtual |
Ensures that the current Texture data is refreshed onto the GSG.
This means updating the texture properties and/or re-uploading the texture image, if necessary. This should only be called within the draw thread.
If force is true, this function will not return until the texture has been fully uploaded. If force is false, the function may choose to upload a simple version of the texture instead, if the texture is not fully resident (and if get_incomplete_render() is true).
Implements GraphicsStateGuardianBase.
Reimplemented in DXGraphicsStateGuardian9.
Definition at line 568 of file graphicsStateGuardian.cxx.
Member Data Documentation
◆ get_coordinate_system
|
inline |
Returns the coordinate system in effect on this particular gsg.
Normally, this will be the default coordinate system, but it might be set differently at runtime.
Definition at line 243 of file graphicsStateGuardian.h.
◆ get_copy_texture_inverted
|
inline |
Returns true if this particular GSG has the property that any framebuffer- to-texture copy results in a texture that is upside-down and backwards from Panda's usual convention; that is, it copies into a texture from the bottom up instead of from the top down.
If this is true, then on offscreen GraphicsBuffer created for the purposes of rendering into a texture should be created with the invert flag set true, to compensate. Panda will do this automatically if you create an offscreen buffer using GraphicsOutput::make_texture_buffer().
Definition at line 202 of file graphicsStateGuardian.h.
◆ get_driver_renderer
| string GraphicsStateGuardian::get_driver_renderer |
Returns GL_Renderer.
Definition at line 281 of file graphicsStateGuardian.h.
◆ get_driver_shader_version_major
| int GraphicsStateGuardian::get_driver_shader_version_major |
Returns the major version of the shader model.
Definition at line 285 of file graphicsStateGuardian.h.
◆ get_driver_shader_version_minor
| int GraphicsStateGuardian::get_driver_shader_version_minor |
Returns the minor version of the shader model.
Definition at line 286 of file graphicsStateGuardian.h.
◆ get_driver_vendor
| string GraphicsStateGuardian::get_driver_vendor |
Returns the vendor of the video card driver.
Definition at line 280 of file graphicsStateGuardian.h.
◆ get_driver_version
| string GraphicsStateGuardian::get_driver_version |
Returns driver version This has an implementation-defined meaning, and may be "" if the particular graphics implementation does not provide a way to query this information.
Definition at line 282 of file graphicsStateGuardian.h.
◆ get_driver_version_major
| int GraphicsStateGuardian::get_driver_version_major |
Returns major version of the video driver.
This has an implementation- defined meaning, and may be -1 if the particular graphics implementation does not provide a way to query this information.
Definition at line 283 of file graphicsStateGuardian.h.
◆ get_driver_version_minor
| int GraphicsStateGuardian::get_driver_version_minor |
Returns the minor version of the video driver.
This has an implementation- defined meaning, and may be -1 if the particular graphics implementation does not provide a way to query this information.
Definition at line 284 of file graphicsStateGuardian.h.
◆ get_effective_incomplete_render
|
inline |
Returns true if the GSG is effectively in incomplete_render state, considering both the GSG's incomplete_render and its current DisplayRegion's incomplete_render flags.
It only makes sense to call this during the draw traversal; at other times this return value will be meaningless.
See CullTraverser::get_effective_incomplete_render() for this same information during the cull traversal.
Definition at line 104 of file graphicsStateGuardian.h.
◆ get_flash_texture
| Texture * GraphicsStateGuardian::get_flash_texture |
Returns the current "flash texture", if any, or NULL if none.
See set_flash_texture().
Definition at line 266 of file graphicsStateGuardian.h.
◆ get_gamma
| PN_stdfloat GraphicsStateGuardian::get_gamma |
Get the current gamma setting.
Definition at line 251 of file graphicsStateGuardian.h.
◆ get_incomplete_render
|
inline |
Returns the incomplete_render flag.
Definition at line 103 of file graphicsStateGuardian.h.
◆ get_loader
|
inline |
Returns the Loader object that will be used by this GSG to load textures when necessary, if get_incomplete_render() is true.
Definition at line 108 of file graphicsStateGuardian.h.
◆ get_max_2d_texture_array_layers
|
inline |
Returns the largest possible number of pages, or -1 if there is no particular limit.
Returns 0 if 2-d texture arrays not supported.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 184 of file graphicsStateGuardian.h.
◆ get_max_3d_texture_dimension
|
inline |
Returns the largest possible texture size in any one dimension for a 3-d texture, or -1 if there is no particular limit.
Returns 0 if 3-d textures are not supported.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 183 of file graphicsStateGuardian.h.
◆ get_max_buffer_texture_size
|
inline |
Returns the largest possible buffer texture size, or -1 if there is no particular limit.
Returns 0 if cube map textures are not supported.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 186 of file graphicsStateGuardian.h.
◆ get_max_clip_planes
|
inline |
Returns the maximum number of simultaneous clip planes that may be applied to geometry, or -1 if there is no particular limit.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 199 of file graphicsStateGuardian.h.
◆ get_max_color_targets
|
inline |
Returns the maximum number of simultaneous color textures that may be attached for render-to-texture, as supported by this particular GSG.
If you exceed this number, the lowest-priority render targets will not be applied. Use RenderTarget::set_priority() to adjust the relative importance of the different render targets.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 223 of file graphicsStateGuardian.h.
Referenced by get_maximum_simultaneous_render_targets().
◆ get_max_cube_map_dimension
|
inline |
Returns the largest possible texture size in any one dimension for a cube map texture, or -1 if there is no particular limit.
Returns 0 if cube map textures are not supported.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 185 of file graphicsStateGuardian.h.
Referenced by GraphicsOutput::make_cube_map().
◆ get_max_lights
|
inline |
Returns the maximum number of simultaneous lights that may be rendered on geometry, or -1 if there is no particular limit.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 198 of file graphicsStateGuardian.h.
◆ get_max_texture_dimension
|
inline |
Returns the largest possible texture size in any one dimension supported by the GSG, or -1 if there is no particular limit.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 182 of file graphicsStateGuardian.h.
◆ get_max_texture_stages
|
inline |
Returns the maximum number of simultaneous textures that may be applied to geometry with multitexturing, as supported by this particular GSG.
If you exceed this number, the lowest-priority texture stages will not be applied. Use TextureStage::set_priority() to adjust the relative importance of the different texture stages.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 181 of file graphicsStateGuardian.h.
Referenced by get_alpha_scale_via_texture().
◆ get_max_vertex_transform_indices
|
inline |
Returns the maximum number of transforms there may be in a single TransformTable for this graphics hardware.
If this number is 0 (but get_max_transforms() is nonzero), then the graphics hardware (or API) doesn't support indexed transforms, but can support direct transform references.
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 201 of file graphicsStateGuardian.h.
◆ get_max_vertex_transforms
|
inline |
Returns the maximum number of transform matrices that may be simultaneously used to transform any one vertex by the graphics hardware.
If this number is 0, then the hardware (or the graphics backend) doesn't support soft- skinned vertices (in which case Panda will animate the vertices in software).
The value returned may not be meaningful until after the graphics context has been fully created (e.g. the window has been opened).
Definition at line 200 of file graphicsStateGuardian.h.
◆ get_max_vertices_per_array
|
inline |
Returns the maximum number of vertices that should be put into any one GeomVertexData object for use with this GSG.
Definition at line 179 of file graphicsStateGuardian.h.
◆ get_max_vertices_per_primitive
|
inline |
Returns the maximum number of vertex indices that should be put into any one GeomPrimitive object for use with this GSG.
Definition at line 180 of file graphicsStateGuardian.h.
◆ get_pipe
|
inline |
Returns the graphics pipe on which this GSG was created.
Definition at line 117 of file graphicsStateGuardian.h.
Referenced by GraphicsEngine::make_buffer().
◆ get_prepared_objects
| PreparedGraphicsObjects * GraphicsStateGuardian::get_prepared_objects |
Returns the set of texture and geom objects that have been prepared with this GSG (and possibly other GSG's that share objects).
Definition at line 246 of file graphicsStateGuardian.h.
Referenced by DXGraphicsStateGuardian9::extract_texture_data(), DXGraphicsStateGuardian9::framebuffer_copy_to_texture(), and DXGraphicsStateGuardian9::setup_array_data().
◆ get_scene
| SceneSetup * GraphicsStateGuardian::get_scene |
Returns the current SceneSetup object.
Definition at line 290 of file graphicsStateGuardian.h.
◆ get_shader_generator
|
inline |
Returns the ShaderGenerator object that will be used by this GSG to generate shaders when necessary.
Definition at line 112 of file graphicsStateGuardian.h.
◆ get_shader_model
|
inline |
Returns the ShaderModel.
Definition at line 228 of file graphicsStateGuardian.h.
◆ get_supports_2d_texture_array
|
inline |
Returns true if this GSG can render 2-d textures array.
Definition at line 191 of file graphicsStateGuardian.h.
◆ get_supports_3d_texture
|
inline |
Returns true if this GSG can render 3-d (volumetric) textures.
Definition at line 190 of file graphicsStateGuardian.h.
◆ get_supports_basic_shaders
|
inline |
Returns true if this particular GSG supports arbfp1+arbvp1 or above.
Definition at line 210 of file graphicsStateGuardian.h.
◆ get_supports_buffer_texture
|
inline |
Returns true if this GSG can render buffer textures.
Definition at line 193 of file graphicsStateGuardian.h.
◆ get_supports_compressed_texture
|
inline |
Returns true if this GSG can compress textures as it loads them into texture memory, and/or accept pre-compressed textures for storing.
Definition at line 197 of file graphicsStateGuardian.h.
◆ get_supports_compute_shaders
|
inline |
Returns true if this particular GSG supports compute shaders.
Definition at line 213 of file graphicsStateGuardian.h.
◆ get_supports_cube_map
|
inline |
Returns true if this GSG can render cube map textures.
Definition at line 192 of file graphicsStateGuardian.h.
Referenced by GraphicsOutput::make_cube_map().
◆ get_supports_cube_map_array
|
inline |
Returns true if this GSG can render cube map arrays.
Definition at line 194 of file graphicsStateGuardian.h.
◆ get_supports_depth_stencil
|
inline |
Returns true if this particular GSG supports textures whose format is F_depth_stencil.
This only returns true if the GSG supports the full packed depth-stencil functionality.
Definition at line 206 of file graphicsStateGuardian.h.
◆ get_supports_depth_texture
|
inline |
Returns true if this particular GSG supports textures whose format is F_depth_stencil.
This returns true if the GSG supports GL_DEPTH_COMPONENT textures, which are considered a limited but still valid case of F_depth_stencil.
Definition at line 205 of file graphicsStateGuardian.h.
◆ get_supports_dual_source_blending
|
inline |
Returns true if dual source (incoming1_color and incoming1_alpha) blend operands are supported by this GSG.
Definition at line 224 of file graphicsStateGuardian.h.
◆ get_supports_generate_mipmap
|
inline |
Returns true if this particular GSG can generate mipmaps for a texture automatically, or if they must be generated in software.
If this is true, then mipmaps can safely be enabled for rendered textures (e.g. using the MultitexReducer).
Definition at line 204 of file graphicsStateGuardian.h.
◆ get_supports_geometry_instancing
|
inline |
Returns true if this particular GSG supports hardware geometry instancing: the ability to render multiple copies of a model.
In OpenGL, this is done using the EXT_draw_instanced extension.
Definition at line 218 of file graphicsStateGuardian.h.
◆ get_supports_geometry_shaders
|
inline |
Returns true if this particular GSG supports geometry shaders.
Definition at line 211 of file graphicsStateGuardian.h.
◆ get_supports_glsl
|
inline |
Returns true if this particular GSG supports GLSL shaders.
Definition at line 214 of file graphicsStateGuardian.h.
◆ get_supports_hlsl
|
inline |
Returns true if this particular GSG supports HLSL shaders.
Definition at line 215 of file graphicsStateGuardian.h.
◆ get_supports_indirect_draw
|
inline |
Returns true if this particular GSG supports draw calls for which the information comes from a buffer.
Definition at line 219 of file graphicsStateGuardian.h.
◆ get_supports_luminance_texture
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inline |
Returns true if this particular GSG supports luminance textures.
Definition at line 207 of file graphicsStateGuardian.h.
◆ get_supports_multisample
| bool GraphicsStateGuardian::get_supports_multisample |
Returns true if this particular GSG supports using the multisample bits to provide antialiasing, and also supports M_multisample and M_multisample_mask transparency modes.
If this is not true for a particular GSG, Panda will map the M_multisample modes to M_binary.
This method is declared virtual solely so that it can be queried from cullResult.cxx.
Definition at line 203 of file graphicsStateGuardian.h.
◆ get_supports_occlusion_query
| bool GraphicsStateGuardian::get_supports_occlusion_query |
Returns true if this GSG supports an occlusion query.
If this is true, then begin_occlusion_query() and end_occlusion_query() may be called to bracket a sequence of draw_triangles() (or whatever) calls to measure pixels that pass the depth test.
Definition at line 220 of file graphicsStateGuardian.h.
◆ get_supports_sampler_objects
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inline |
Returns true if this particular GSG supports the use of sampler objects to record texture sampling parameters separately from the texture objects.
This doesn't really affect functionality, but if this is false, it may mean that using the same texture with different SamplerState objects will result in reduced performance.
Definition at line 209 of file graphicsStateGuardian.h.
◆ get_supports_shadow_filter
|
inline |
Returns true if this particular GSG supports the filter mode FT_shadow for depth textures.
Definition at line 208 of file graphicsStateGuardian.h.
◆ get_supports_stencil
|
inline |
Returns true if this particular GSG supports stencil buffers at all.
Definition at line 216 of file graphicsStateGuardian.h.
◆ get_supports_tessellation_shaders
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inline |
Returns true if this particular GSG supports tesselation shaders.
Definition at line 212 of file graphicsStateGuardian.h.
◆ get_supports_tex_non_pow2
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inline |
Returns true if this GSG can handle non power of two sized textures.
Definition at line 195 of file graphicsStateGuardian.h.
◆ get_supports_texture_combine
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inline |
Returns true if this particular GSG can use the TextureStage::M_combine mode, which includes all of the texture blend modes specified by set_combine_rgb() and/or set_combine_alpha().
If this is false, you must limit yourself to using the simpler blend modes.
Definition at line 187 of file graphicsStateGuardian.h.
◆ get_supports_texture_dot3
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inline |
Returns true if this GSG can use the TextureStage::CM_dot3_rgb or CM_dot3_rgba combine modes.
Definition at line 189 of file graphicsStateGuardian.h.
◆ get_supports_texture_saved_result
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inline |
Returns true if this GSG can use the TextureStage::CS_last_saved_result source, which allows you to save the result of a TextureStage and re-use it for multiple inputs.
Definition at line 188 of file graphicsStateGuardian.h.
◆ get_supports_texture_srgb
|
inline |
Returns true if this GSG can handle sRGB textures.
Definition at line 196 of file graphicsStateGuardian.h.
◆ get_supports_timer_query
| bool GraphicsStateGuardian::get_supports_timer_query |
Returns true if this GSG supports a timer query.
Definition at line 221 of file graphicsStateGuardian.h.
◆ get_supports_two_sided_stencil
|
inline |
Returns true if this particular GSG supports two sided stencil: different stencil settings for the front and back side of the same polygon.
Definition at line 217 of file graphicsStateGuardian.h.
◆ get_texture_quality_override
|
inline |
Returns the global quality_level override specified by set_texture_quality_override.
This is mainly useful for the tinydisplay software renderer. See Texture::set_quality_level().
Definition at line 256 of file graphicsStateGuardian.h.
◆ get_timer_queries_active
| bool GraphicsStateGuardian::get_timer_queries_active |
Returns true if timer queries are currently enabled on this GSG.
Definition at line 222 of file graphicsStateGuardian.h.
◆ is_active
|
inline |
Returns the active flag associated with the GraphicsStateGuardian.
Definition at line 97 of file graphicsStateGuardian.h.
◆ is_valid
|
inline |
Returns true if the GSG has been correctly initialized within a graphics context, false if there has been some problem or it hasn't been initialized yet.
Definition at line 98 of file graphicsStateGuardian.h.
Referenced by GraphicsEngine::make_output().
◆ set_active
|
inline |
Sets the active flag associated with the GraphicsStateGuardian.
If the GraphicsStateGuardian is marked inactive, nothing is rendered. This is not normally turned off unless there is a problem with the rendering detected at a low level.
Definition at line 97 of file graphicsStateGuardian.h.
◆ set_coordinate_system
| void GraphicsStateGuardian::set_coordinate_system |
Changes the coordinate system in effect on this particular gsg.
This is also called the "external" coordinate system, since it is the coordinate system used by the scene graph, external to to GSG.
Normally, this will be the default coordinate system, but it might be set differently at runtime. It will automatically be copied from the current lens's coordinate system as each DisplayRegion is rendered.
Definition at line 243 of file graphicsStateGuardian.h.
◆ set_flash_texture
| void GraphicsStateGuardian::set_flash_texture |
Sets the "flash texture".
This is a debug feature; when enabled, the specified texture will begin flashing in the scene, helping you to find it visually.
The texture also flashes with a color code: blue for mipmap level 0, yellow for mipmap level 1, and red for mipmap level 2 or higher (even for textures that don't have mipmaps). This gives you an idea of the choice of the texture size. If it is blue, the texture is being drawn the proper size or magnified; if it is yellow, it is being minified a little bit; and if it red, it is being minified considerably. If you see a red texture when you are right in front of it, you should consider reducing the size of the texture to avoid wasting texture memory.
Not all rendering backends support the flash_texture feature. Presently, it is only supported by OpenGL.
Definition at line 266 of file graphicsStateGuardian.h.
◆ set_gamma
| bool GraphicsStateGuardian::set_gamma |
◆ set_incomplete_render
|
inline |
Sets the incomplete_render flag.
When this is true, the frame will be rendered even if some of the geometry or textures in the scene are not available (e.g. they have been temporarily paged out). When this is false, the frame will be held up while this data is reloaded.
Setting this true allows for a smoother frame rate, but occasionally parts of the frame will be invisible or missing (they will generally come in within a second or two). Setting this false guarantees that every frame will be complete, but may cause more chugs as things are loaded up at runtime.
You may want to set this false during loading screens, to guarantee that all of your assets are available by the time you take the loading screen down.
This flag may also be set individually on each DisplayRegion. It will be considered true for a given DisplayRegion only if it is true on both the GSG and on the DisplayRegion.
Definition at line 103 of file graphicsStateGuardian.h.
◆ set_loader
|
inline |
Sets the Loader object that will be used by this GSG to load textures when necessary, if get_incomplete_render() is true.
Definition at line 108 of file graphicsStateGuardian.h.
◆ set_scene
| bool GraphicsStateGuardian::set_scene |
Sets the SceneSetup object that indicates the initial camera position, etc.
This must be called before traversal begins. Returns true if the scene is acceptable, false if something's wrong. This should be called in the draw thread only.
Definition at line 290 of file graphicsStateGuardian.h.
Referenced by DisplayRegionDrawCallbackData::upcall().
◆ set_shader_generator
|
inline |
Sets the ShaderGenerator object that will be used by this GSG to generate shaders when necessary.
Definition at line 112 of file graphicsStateGuardian.h.
◆ set_shader_model
|
inline |
Sets the ShaderModel.
This will override the auto- detected shader model during GSG reset. Useful for testing lower-end shaders.
Definition at line 228 of file graphicsStateGuardian.h.
◆ set_texture_quality_override
|
inline |
Specifies the global quality_level to be imposed for all Textures rendered by this GSG.
This overrides the value set on individual textures via Texture::set_quality_level(). Set this to Texture::QL_default in order to allow the individual texture quality levels to be respected.
This is mainly useful for the tinydisplay software renderer. See Texture::set_quality_level().
Definition at line 256 of file graphicsStateGuardian.h.
The documentation for this class was generated from the following files:
- panda/src/display/graphicsStateGuardian.h
- panda/src/display/graphicsStateGuardian.cxx
- panda/src/display/graphicsStateGuardian.I
