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gdk-graphics 0b051eb9b5c1eaa0658babaa4463dd7a80aa9d2c
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gdk-graphics 0b051eb9b5c1eaa0658babaa4463dd7a80aa9d2c
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Specifies drawing behaviours at the two programmable stages in the OpenGL ES 2.0/WebGL 1.0 pipeline (the vertex shader stage and fragment shader stage) TODO: array uniform methods currently force the use of vectors. should add support for c-style arrays and std::arrays. More...
#include <webgl1es2_shader_program.h>
Classes | |
| struct | active_attribute_info |
| index, size, type of an active attribute used in the shader program More... | |
| struct | active_uniform_info |
| index. size. type o an active uniform used in the shader program More... | |
Public Types | |
| using | active_attribute_collection_type = std::unordered_map<std::string, active_attribute_info> |
| using | active_uniform_collection_type = std::unordered_map<std::string, active_uniform_info> |
| using | integer2_uniform_type = graphics_intvector2_type |
| type alias used for setting int2 uniform value | |
| using | integer3_uniform_type = graphics_intvector3_type |
| type alias used for setting int3 uniform value | |
| using | integer4_uniform_type = graphics_intvector4_type |
| type alias used for setting int4 uniform value | |
Public Member Functions | |
| std::optional< active_attribute_info > | tryGetActiveAttribute (const std::string &aAttributeName) const |
| returns a nonnull optional to an attribute info if one with the given name exists | |
| bool | try_set_uniform (const std::string &aName, const GLfloat aValue) const |
| assign a float1 uniform from a float | |
| bool | try_set_uniform (const std::string &aName, const graphics_vector2_type &aValue) const |
| assign a float2 uniform from a 2 component vector | |
| bool | try_set_uniform (const std::string &aName, const graphics_vector3_type &aValue) const |
| assign a float3 uniform from a 3 component vector | |
| bool | try_set_uniform (const std::string &aName, const graphics_vector4_type &aValue) const |
| assign a float4 uniform from a 4 component vector | |
| bool | try_set_uniform (const std::string &aName, const std::vector< GLfloat > &avalue) const |
| assign a float uniform array from an array of floats | |
| bool | try_set_uniform (const std::string &aName, const std::vector< graphics_vector2_type > &avalue) const |
| assign a float2 uniform array from an array of float2s | |
| bool | try_set_uniform (const std::string &aName, const std::vector< graphics_vector3_type > &avalue) const |
| assign a value to a float3 uniform array from a vector of float3s | |
| bool | try_set_uniform (const std::string &aName, const std::vector< graphics_vector4_type > &avalue) const |
| assign a value to a float4 uniform array from a vector of float4s | |
| bool | try_set_uniform (const std::string &aName, const GLint aValue) const |
| assign a value to a integer uniform | |
| bool | try_set_uniform (const std::string aName, const integer2_uniform_type &aValue) const |
| assign a value to a integer2 uniform | |
| bool | try_set_uniform (const std::string aName, const integer3_uniform_type &aValue) const |
| assign a value to a integer3 uniform | |
| bool | try_set_uniform (const std::string aName, const integer4_uniform_type &aValue) const |
| assign a value to a integer4 uniform | |
| bool | try_set_uniform (const std::string &aName, const std::vector< GLint > &aValue) const |
| assign a value to a integer uniform array | |
| bool | try_set_uniform (const std::string &aName, const std::vector< integer2_uniform_type > &aValue) const |
| assign a value to a integer2 uniform array | |
| bool | try_set_uniform (const std::string &aName, const std::vector< integer3_uniform_type > &aValue) const |
| assign a value to a integer3 uniform array | |
| bool | try_set_uniform (const std::string &aName, const std::vector< integer4_uniform_type > &aValue) const |
| assign a value to a integer4 uniform array | |
| bool | try_set_uniform (const std::string &aName, const graphics_matrix4x4_type &avalue) const |
| assign a value to a bool uniform | |
| bool | try_set_uniform (const std::string &aName, const std::vector< graphics_matrix4x4_type > &avalue) const |
| assign a mat4x4 uniform array from a vector of mat4x4s | |
| bool | try_set_uniform (const std::string &aName, const gdk::webgl1es2_texture &aTexture) const |
| bind a texture to the context then assign it to a texture uniform | |
| void | useProgram () const |
| bind an array of textures to the context then assign them to texture uniforms | |
| bool | operator== (const webgl1es2_shader_program &) const |
| equality semantics | |
| bool | operator!= (const webgl1es2_shader_program &) const |
| equality semantics | |
| webgl1es2_shader_program (webgl1es2_shader_program &&)=default | |
| move semantics | |
| webgl1es2_shader_program & | operator= (webgl1es2_shader_program &&)=default |
| move semantics | |
| webgl1es2_shader_program (std::string aVertexSource, std::string aFragmentSource) | |
| constructs a shader program with glsl source file contents for a vertex shader and a fragment shader | |
Static Public Member Functions | |
| static const size_t | MAX_TEXTURE_UNITS () |
| static const size_t | MAX_FRAGMENT_SHADER_INSTRUCTIONS () |
| static const size_t | MAX_VERTEX_SHADER_INSTRUCTIONS () |
Static Public Attributes | |
| static const jfc::lazy_ptr< gdk::webgl1es2_shader_program > | PinkShaderOfDeath |
| shader useful for indicating some kind of failure. Performs MVP mul then colors all frags bright pink. | |
| static const jfc::lazy_ptr< gdk::webgl1es2_shader_program > | AlphaCutOff |
Specifies drawing behaviours at the two programmable stages in the OpenGL ES 2.0/WebGL 1.0 pipeline (the vertex shader stage and fragment shader stage) TODO: array uniform methods currently force the use of vectors. should add support for c-style arrays and std::arrays.
| using gdk::webgl1es2_shader_program::active_attribute_collection_type = std::unordered_map<std::string, active_attribute_info> |
associative collection which maps an active attribute by its name to its index in the program. used in memoization strategy to reduce opengl api calls
| using gdk::webgl1es2_shader_program::active_uniform_collection_type = std::unordered_map<std::string, active_uniform_info> |
associative collection which maps an active uniform by its name to its index in the program. used in memoization strategy to reduce opengl api calls
| bool gdk::webgl1es2_shader_program::try_set_uniform | ( | const std::string & | aName, |
| const graphics_matrix4x4_type & | avalue ) const |
assign a value to a bool uniform
assign a value to a bvec2 uniform assign a value to a bvec3 uniform assign a value to a bvec4 uniform assign a value to a bool uniform array assign a value to a bvec2 uniform array assign a value to a bvec3 uniform array assign a value to a bvec4 uniform array assign a mat4x4 uniform from a mat4x4
| void gdk::webgl1es2_shader_program::useProgram | ( | ) | const |
bind an array of textures to the context then assign them to texture uniforms
Installs this program's shaders to their corresponding programmable stages will be used for subsequent draw calls until a different program is installed.
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shader for drawing unlit surfaces with alpha channel based fragment discard. Suitable for text rendering, GUI element rendering, 2D Sprite rendering. Extremely lightweight.
1.13.2