[1] | 1 | |
---|
| 2 | Here are listed the functions that TinyGL understands with the known |
---|
| 3 | limitations. The non mentionned functions are *not* implemented and |
---|
| 4 | must not be used. |
---|
| 5 | |
---|
| 6 | |
---|
| 7 | ************ glEnable / glDisable |
---|
| 8 | |
---|
| 9 | - The following flags are handled: |
---|
| 10 | |
---|
| 11 | GL_CULL_FACE, GL_LIGHTING, GL_COLOR_MATERIAL, GL_TEXTURE_2D, GL_NORMALIZE, |
---|
| 12 | GL_LIGHTx, GL_POLYGON_OFFSET_FILL, GL_POLYGON_OFFSET_POINT, |
---|
| 13 | GL_POLYGON_OFFSET_LINE |
---|
| 14 | |
---|
| 15 | |
---|
| 16 | - GL_DEPTH_TEST is accepted, but it is only used for lines. For all |
---|
| 17 | other primitives, Z buffer use is assumed. The DepthMode is |
---|
| 18 | hardcoded as GL_LESS (OpenGL default). |
---|
| 19 | |
---|
| 20 | ************ glShadeModel |
---|
| 21 | |
---|
| 22 | OK. |
---|
| 23 | |
---|
| 24 | ************ glCullFace |
---|
| 25 | |
---|
| 26 | OK. |
---|
| 27 | |
---|
| 28 | ************ glPolygonMode |
---|
| 29 | |
---|
| 30 | OK. |
---|
| 31 | |
---|
| 32 | ************ glBegin |
---|
| 33 | |
---|
| 34 | No tests are performed to prevent some functions of being executed |
---|
| 35 | between glBegin/glEnd. |
---|
| 36 | |
---|
| 37 | ************ glEnd |
---|
| 38 | |
---|
| 39 | OK. |
---|
| 40 | |
---|
| 41 | ************ glVertex |
---|
| 42 | |
---|
| 43 | Some prototypes are not implemented. |
---|
| 44 | |
---|
| 45 | |
---|
| 46 | ************ glColor |
---|
| 47 | |
---|
| 48 | Some prototypes are not implemented. |
---|
| 49 | |
---|
| 50 | ************ glNormal |
---|
| 51 | |
---|
| 52 | Some prototypes are not implemented. |
---|
| 53 | |
---|
| 54 | ************ glTexCoord |
---|
| 55 | |
---|
| 56 | - Some prototypes are not implemented. |
---|
| 57 | |
---|
| 58 | - The Matrix transformation is not applied yet. |
---|
| 59 | |
---|
| 60 | ************ glEdgeFlag |
---|
| 61 | |
---|
| 62 | OK. The edge handling has to be tested, although it is not much useful |
---|
| 63 | in TinyGL. |
---|
| 64 | |
---|
| 65 | ************ glMatrixMode / glLoadMatrixf / glLoadIdentity / glMultMatrixf / |
---|
| 66 | glPushMatrix / glPopMatrix / glRotatef / glTranslatef / glScalef / |
---|
| 67 | glFrustum |
---|
| 68 | |
---|
| 69 | - The prototypes with doubles are not implemented. |
---|
| 70 | |
---|
| 71 | ************ glViewport |
---|
| 72 | |
---|
| 73 | GlViewport calls a function pointers to tell glx (or another display |
---|
| 74 | system) to resize the Z buffer and the ximage. Made optional in |
---|
| 75 | version 0.2. |
---|
| 76 | |
---|
| 77 | ************ glGenLists / glIsList / glNewList / glEndList / glCallList |
---|
| 78 | |
---|
| 79 | OK. |
---|
| 80 | |
---|
| 81 | ************ glClear / glClearColor / glClearDepth |
---|
| 82 | |
---|
| 83 | The whole zbuffer and the colors are cleared in any case. The clear color |
---|
| 84 | can be redefined, by *not* the initial z value. |
---|
| 85 | |
---|
| 86 | ************ glRenderMode |
---|
| 87 | |
---|
| 88 | Only the modes GL_RENDER and GL_SELECT are implemented. |
---|
| 89 | |
---|
| 90 | ************ glSelectBuffer / glInitNames / glPushName / glPopName / glLoadName |
---|
| 91 | |
---|
| 92 | OK. |
---|
| 93 | |
---|
| 94 | ************ glGenTextures / glDeleteTextures / glBindTexture |
---|
| 95 | |
---|
| 96 | OK. These functions should be used to get the maximum performance with |
---|
| 97 | TinyGL. |
---|
| 98 | |
---|
| 99 | ************ glTexImage2D |
---|
| 100 | |
---|
| 101 | The function accepts only RGB UNSIGNED_BYTES bitmaps. They are |
---|
| 102 | internally resized to 256x256 so you'd better use that size. No |
---|
| 103 | mipmapping is implemented although it will come if asked. No borders |
---|
| 104 | are implemented. |
---|
| 105 | |
---|
| 106 | ************ glTexEnvi |
---|
| 107 | |
---|
| 108 | The only supported mode is GL_DECAL, although others are planned if |
---|
| 109 | asked. |
---|
| 110 | |
---|
| 111 | |
---|
| 112 | ************ glTexParameteri |
---|
| 113 | |
---|
| 114 | The other prototypes are not implemented. Only the follwing mode are |
---|
| 115 | implemented: |
---|
| 116 | |
---|
| 117 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
---|
| 118 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
---|
| 119 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); |
---|
| 120 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); |
---|
| 121 | |
---|
| 122 | ************ glPixelStorei |
---|
| 123 | |
---|
| 124 | The pixels are alware byte aligned. |
---|
| 125 | |
---|
| 126 | ************ glMaterialfv / glMaterialf / glColorMaterial |
---|
| 127 | |
---|
| 128 | OK. |
---|
| 129 | |
---|
| 130 | |
---|
| 131 | ************ glLightfv / glLightf / glLightModeli / glLightModelfv |
---|
| 132 | |
---|
| 133 | OK. The OpenGL lightening is implemented but not optimized. |
---|
| 134 | |
---|
| 135 | |
---|
| 136 | ************ glFlush |
---|
| 137 | |
---|
| 138 | Ignored. |
---|
| 139 | |
---|
| 140 | ************ glHint |
---|
| 141 | |
---|
| 142 | Ignored. |
---|
| 143 | |
---|
| 144 | ************ glGetIntegerv |
---|
| 145 | |
---|
| 146 | - only GL_VIEWPORT, GL_MAX_MODELVIEW_STACK_DEPTH, |
---|
| 147 | GL_MAX_PROJECTION_STACK_DEPTH, GL_MAX_LIGHTS, GL_MAX_TEXTURE_SIZE, |
---|
| 148 | GL_MAX_TEXTURE_STACK_DEPTH |
---|
| 149 | |
---|
| 150 | ************ glGetIntegerv |
---|
| 151 | |
---|
| 152 | - only GL_TEXTURE_MATRIX, GL_PROJECTION_MATRIX, GL_MODELVIEW_MATRIX, |
---|
| 153 | GL_LINE_WIDTH, GL_LINE_WIDTH_RANGE, GL_POINT_SIZE, GL_POINT_SIZE_RANGE |
---|
| 154 | |
---|
| 155 | ************ glPolygonOffset |
---|
| 156 | |
---|
| 157 | - only API implemented. |
---|
| 158 | |
---|
| 159 | ************ glEnableClientState, glDisableClientState, |
---|
| 160 | |
---|
| 161 | - No support for GL_INDEX_ARRAY_POINTER or GL_EDGE_FLAG_ARRAY_POINTER |
---|
| 162 | |
---|
| 163 | ************ glVertexPointer, glNormalPointer, |
---|
| 164 | glColorPointer, glTexureCoordPointer |
---|
| 165 | |
---|
| 166 | - OK |
---|
| 167 | |
---|
| 168 | ------------------------------------------------------------------------------ |
---|
| 169 | |
---|
| 170 | TinyGL GLX emulation: |
---|
| 171 | |
---|
| 172 | |
---|
| 173 | ************ glXQueryExtension |
---|
| 174 | |
---|
| 175 | Returns always True |
---|
| 176 | |
---|
| 177 | ************ glXChooseVisual |
---|
| 178 | |
---|
| 179 | Only 8 bit Pseudocolor or 16 bit Truecolor Visual are accepted. The |
---|
| 180 | attribute list is ignored. |
---|
| 181 | |
---|
| 182 | ************ glXCreateContext |
---|
| 183 | |
---|
| 184 | The sharing is not implemented although the code could handle it. |
---|
| 185 | |
---|
| 186 | ************ glXDestroyContext |
---|
| 187 | |
---|
| 188 | OK. |
---|
| 189 | |
---|
| 190 | ************ glXMakeCurrent |
---|
| 191 | |
---|
| 192 | Not all the syntax is supported yet, in particular with the 'NULL' or |
---|
| 193 | 'None' parameters. |
---|
| 194 | |
---|
| 195 | |
---|
| 196 | ************ glXSwapBuffers |
---|
| 197 | |
---|
| 198 | OK. |
---|
| 199 | |
---|
| 200 | ************ glXWaitGL / glXWaitX |
---|
| 201 | |
---|
| 202 | Ignored. |
---|
| 203 | |
---|
| 204 | |
---|
| 205 | See README.BEOS for BeOS limitations. |
---|
| 206 | |
---|