6 #include "arraystate.h"
7 #include "bufferstate.h"
9 #include "programstate.h"
10 #include "texturestate.h"
21 union { float x, r, s; };
22 union { float y, g, t; };
23 union { float z, b, p; };
24 union { float w, a, q; };
30 Tracks OpenGL state based on the command stream. This class is essentially a
31 (partial) OpenGL implementation in itself.
33 XXX Should determine the number of texture units the target implementation
39 typedef std::map<unsigned, TextureState> TextureMap;
40 typedef std::map<unsigned, BufferState> BufferMap;
41 typedef std::map<unsigned, ShaderState> ShaderMap;
42 typedef std::map<unsigned, ProgramState> ProgramMap;
50 unsigned client_active_tex;
52 TexUnitState texunits[8];
54 BufferState *array_buffer;
55 BufferState *element_buffer;
56 BufferState *uniform_buffer;
57 std::vector<BufferBindingState> uniform_bind_points;
58 ArrayState vertex_array;
59 ArrayState normal_array;
60 ArrayState color_array;
61 ArrayState texcoord_arrays[8];
62 std::map<unsigned, ArrayState> attrib_arrays;
70 int decode(const char *, unsigned);
73 bool &get_boolean_state(GLenum);
74 static void glEnableClientState(void *, GLenum);
75 static void glDisableClientState(void *, GLenum);
77 static void glColor3f(void *, float, float, float);
78 static void glColor4f(void *, float, float, float, float);
79 static void glNormal3f(void *, float, float, float);
80 static void glTexCoord1f(void *, float);
81 static void glTexCoord2f(void *, float, float);
82 static void glTexCoord3f(void *, float, float, float);
83 static void glTexCoord4f(void *, float, float, float, float);
84 static void glMultiTexCoord4f(void *, unsigned, float, float, float, float);
87 const Vector4 &get_color() const { return color; }
88 const Vector4 &get_texcoord(unsigned i) const { return texcoord[i]; }
89 const Vector3 &get_normal() const { return normal; }
92 ArrayState &get_attrib_array(unsigned);
94 static void glVertexPointer(void *, int, GLenum, int, const void *);
95 static void glNormalPointer(void *, GLenum, int, const void *);
96 static void glColorPointer(void *, int, GLenum, int, const void *);
97 static void glClientActiveTexture(void *, unsigned);
98 static void glTexCoordPointer(void *, int, GLenum, int, const void *);
99 static void glEnableVertexAttribArray(void *, unsigned);
100 static void glDisableVertexAttribArray(void *, unsigned);
101 static void glVertexAttribPointer(void *, unsigned, int, GLenum, unsigned char, int, const void *);
104 const ArrayState &get_array(GLenum) const;
105 const ArrayState &get_texture_coord_array(unsigned) const;
106 const ArrayState &get_attrib_array(unsigned) const;
109 static void glDrawElements(void *, GLenum, int, GLenum, const void *);
110 static void glDrawRangeElements(void *, GLenum, unsigned, unsigned, int, GLenum, const void *);
112 void set_current_buffer(GLenum, unsigned);
113 BufferState *get_buffer_object(unsigned);
114 BufferState *get_current_buffer(GLenum);
115 BufferBindingState *get_buffer_binding(GLenum, unsigned);
117 static void glBindBuffer(void *, GLenum, unsigned);
118 static void glBindBufferBase(void *, GLenum, unsigned, unsigned);
119 static void glBindBufferRange(void *, GLenum, unsigned, unsigned, int, int);
120 static void glBufferData(void *, GLenum, int, const void *, GLenum);
121 static void glBufferSubData(void *, GLenum, int, int, const void *);
122 static void glDeleteBuffers(void *, int, const unsigned *);
125 const BufferMap &get_buffers() const { return buffers; }
126 const BufferState &get_buffer(unsigned) const;
127 const BufferState *get_current_buffer(GLenum) const;
128 const BufferBindingState &get_buffer_binding(GLenum, unsigned) const;
131 void set_current_texture(GLenum, unsigned);
132 TextureState *get_current_texture(GLenum);
134 static void glActiveTexture(void *, unsigned);
135 static void glBindTexture(void *, GLenum, unsigned);
136 static void glTexImage2D(void *, GLenum, int, int, int, int, int, GLenum, GLenum, const void *);
137 static void glTexParameteri(void *, GLenum, GLenum, int);
138 static void glTexParameteriv(void *, GLenum, GLenum, const int *);
139 static void glDeleteTextures(void *, int, const unsigned *);
142 const TextureMap &get_textures() const { return textures; }
143 const TextureState &get_texture(unsigned) const;
144 const TexUnitState &get_texture_unit(unsigned i) const { return texunits[i]; }
147 ShaderState *get_shader(unsigned, bool);
148 void delete_shader(unsigned);
149 ProgramState *get_program(unsigned, bool);
150 void delete_program(unsigned);
152 static void glCreateShader(void *, unsigned, GLenum);
153 static void glShaderSource(void *, unsigned, int, const char **, const int *);
154 static void glCompileShader(void *, unsigned);
155 static void glGetShaderiv(void *, unsigned, GLenum, int *);
156 static void glGetShaderInfoLog(void *, unsigned, int, int *, char *);
157 static void glDeleteShader(void *, unsigned);
158 static void glCreateProgram(void *, unsigned);
159 static void glAttachShader(void *, unsigned, unsigned);
160 static void glLinkProgram(void *, unsigned);
161 static void glGetProgramiv(void *, unsigned, GLenum, int *);
162 static void glGetProgramInfoLog(void *, unsigned, int, int *, char *);
163 static void glDeleteProgram(void *, unsigned);
164 static void glDeleteObjectARB(void *, unsigned);
165 static void glGetObjectParameterivARB(void *, unsigned, GLenum, int *);
166 static void glGetInfoLogARB(void *, unsigned, int, int *, char *);
169 const ShaderMap &get_shaders() const { return shaders; }
170 const ShaderState &get_shader(unsigned) const;
171 const ProgramMap &get_programs() const { return programs; }
172 const ProgramState &get_program(unsigned) const;