148 lines
4.4 KiB
C++
148 lines
4.4 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file glShaderContext_src.h
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* @author jyelon
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* @date 2005-09-01
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*/
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#ifndef OPENGLES_1
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#include "pandabase.h"
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#include "string_utils.h"
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#include "internalName.h"
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#include "shader.h"
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#include "shaderContext.h"
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#include "deletedChain.h"
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#include "paramTexture.h"
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class CLP(GraphicsStateGuardian);
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/**
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* xyz
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*/
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class EXPCL_GL CLP(ShaderContext) final : public ShaderContext {
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public:
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friend class CLP(GraphicsStateGuardian);
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CLP(ShaderContext)(CLP(GraphicsStateGuardian) *glgsg, Shader *s);
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~CLP(ShaderContext)();
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ALLOC_DELETED_CHAIN(CLP(ShaderContext));
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void reflect_attribute(int i, char *name_buf, GLsizei name_buflen);
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void reflect_uniform_block(int i, const char *block_name,
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char *name_buffer, GLsizei name_buflen);
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void reflect_uniform(int i, char *name_buffer, GLsizei name_buflen);
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bool get_sampler_texture_type(int &out, GLenum param_type);
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bool valid(void) override;
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void bind() override;
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void unbind() override;
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void set_state_and_transform(const RenderState *state,
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const TransformState *modelview_transform,
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const TransformState *camera_transform,
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const TransformState *projection_transform) override;
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void issue_parameters(int altered) override;
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void update_transform_table(const TransformTable *table);
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void update_slider_table(const SliderTable *table);
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void disable_shader_vertex_arrays() override;
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bool update_shader_vertex_arrays(ShaderContext *prev, bool force) override;
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void disable_shader_texture_bindings() override;
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void update_shader_texture_bindings(ShaderContext *prev) override;
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void update_shader_buffer_bindings(ShaderContext *prev) override;
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bool uses_standard_vertex_arrays(void) override {
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return _uses_standard_vertex_arrays;
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}
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bool uses_custom_vertex_arrays(void) override {
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return true;
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}
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private:
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bool _validated;
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GLuint _glsl_program;
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typedef pvector<GLuint> GLSLShaders;
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GLSLShaders _glsl_shaders;
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WCPT(RenderState) _state_rs;
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CPT(TransformState) _modelview_transform;
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CPT(TransformState) _camera_transform;
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CPT(TransformState) _projection_transform;
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CPT(ColorAttrib) _color_attrib;
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WCPT(ShaderAttrib) _shader_attrib;
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/*
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* struct ParamContext { CPT(InternalName) _name; GLint _location; GLsizei
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* _count; WPT(ParamValue) _value; UpdateSeq _updated; }; typedef
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* pvector<ParamContext> ParamContexts; ParamContexts _params;
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*/
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BitMask32 _enabled_attribs;
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GLint _color_attrib_index;
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GLint _transform_table_index;
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GLint _slider_table_index;
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GLsizei _transform_table_size;
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GLsizei _slider_table_size;
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GLint _frame_number_loc;
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GLint _frame_number;
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#ifndef OPENGLES
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pmap<GLint, GLuint64> _glsl_uniform_handles;
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#endif
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#ifndef OPENGLES
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struct StorageBlock {
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CPT(InternalName) _name;
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GLuint _binding_index;
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GLuint _min_size;
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};
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typedef pvector<StorageBlock> StorageBlocks;
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StorageBlocks _storage_blocks;
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BitArray _used_storage_bindings;
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#endif
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struct ImageInput {
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CPT(InternalName) _name;
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CLP(TextureContext) *_gtc;
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bool _writable;
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};
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pvector<ImageInput> _glsl_img_inputs;
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CLP(GraphicsStateGuardian) *_glgsg;
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bool _uses_standard_vertex_arrays;
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void glsl_report_shader_errors(GLuint shader, Shader::ShaderType type, bool fatal);
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void glsl_report_program_errors(GLuint program, bool fatal);
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bool glsl_compile_shader(Shader::ShaderType type);
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bool glsl_compile_and_link();
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bool parse_and_set_short_hand_shader_vars(Shader::ShaderArgId &arg_id, GLenum param_type, GLint param_size, Shader *s);
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void release_resources();
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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ShaderContext::init_type();
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register_type(_type_handle, CLASSPREFIX_QUOTED "ShaderContext",
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ShaderContext::get_class_type());
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}
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virtual TypeHandle get_type() const override {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() override {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "glShaderContext_src.I"
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#endif // OPENGLES_1
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