1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 #include "main/glheader.h"
27 #include "main/accum.h"
28 #include "main/arrayobj.h"
29 #include "main/context.h"
30 #include "main/draw.h"
31 #include "main/formatquery.h"
32 #include "main/framebuffer.h"
33 #include "main/mipmap.h"
34 #include "main/queryobj.h"
35 #include "main/readpix.h"
36 #include "main/rastpos.h"
37 #include "main/renderbuffer.h"
38 #include "main/shaderobj.h"
39 #include "main/texcompress.h"
40 #include "main/texformat.h"
41 #include "main/texgetimage.h"
42 #include "main/teximage.h"
43 #include "main/texobj.h"
44 #include "main/texstorage.h"
45 #include "main/texstore.h"
46 #include "main/bufferobj.h"
47 #include "main/fbobject.h"
48 #include "main/samplerobj.h"
49 #include "main/syncobj.h"
50 #include "main/barrier.h"
51 #include "main/transformfeedback.h"
52 #include "main/externalobjects.h"
53
54 #include "program/program.h"
55 #include "tnl/tnl.h"
56 #include "swrast/swrast.h"
57 #include "swrast/s_renderbuffer.h"
58
59 #include "driverfuncs.h"
60 #include "meta.h"
61
62
63
64 /**
65 * Plug in default functions for all pointers in the dd_function_table
66 * structure.
67 * Device drivers should call this function and then plug in any
68 * functions which it wants to override.
69 * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
70 *
71 * \param table the dd_function_table to initialize
72 */
73 void
_mesa_init_driver_functions(struct dd_function_table * driver)74 _mesa_init_driver_functions(struct dd_function_table *driver)
75 {
76 memset(driver, 0, sizeof(*driver));
77
78 driver->GetString = NULL; /* REQUIRED! */
79 driver->UpdateState = NULL; /* REQUIRED! */
80
81 driver->Finish = NULL;
82 driver->Flush = NULL;
83
84 /* framebuffer/image functions */
85 driver->Clear = _swrast_Clear;
86 driver->RasterPos = _mesa_RasterPos;
87 driver->DrawPixels = _swrast_DrawPixels;
88 driver->ReadPixels = _mesa_readpixels;
89 driver->CopyPixels = _swrast_CopyPixels;
90 driver->Bitmap = _swrast_Bitmap;
91
92 /* Texture functions */
93 driver->ChooseTextureFormat = _mesa_choose_tex_format;
94 driver->QueryInternalFormat = _mesa_query_internal_format_default;
95 driver->TexImage = _mesa_store_teximage;
96 driver->TexSubImage = _mesa_store_texsubimage;
97 driver->GetTexSubImage = _mesa_meta_GetTexSubImage;
98 driver->ClearTexSubImage = _mesa_meta_ClearTexSubImage;
99 driver->CopyTexSubImage = _mesa_meta_CopyTexSubImage;
100 driver->GenerateMipmap = _mesa_meta_GenerateMipmap;
101 driver->TestProxyTexImage = _mesa_test_proxy_teximage;
102 driver->CompressedTexImage = _mesa_store_compressed_teximage;
103 driver->CompressedTexSubImage = _mesa_store_compressed_texsubimage;
104 driver->BindTexture = NULL;
105 driver->NewTextureObject = _mesa_new_texture_object;
106 driver->DeleteTexture = _mesa_delete_texture_object;
107 driver->NewTextureImage = _swrast_new_texture_image;
108 driver->DeleteTextureImage = _swrast_delete_texture_image;
109 driver->AllocTextureImageBuffer = _swrast_alloc_texture_image_buffer;
110 driver->FreeTextureImageBuffer = _swrast_free_texture_image_buffer;
111 driver->MapTextureImage = _swrast_map_teximage;
112 driver->UnmapTextureImage = _swrast_unmap_teximage;
113 driver->DrawTex = _mesa_meta_DrawTex;
114
115 /* Vertex/fragment programs */
116 driver->NewProgram = _mesa_new_program;
117 driver->DeleteProgram = _mesa_delete_program;
118
119 /* ATI_fragment_shader */
120 driver->NewATIfs = NULL;
121
122 /* Draw functions */
123 driver->Draw = NULL;
124 driver->DrawIndirect = NULL;
125
126 /* simple state commands */
127 driver->AlphaFunc = NULL;
128 driver->BlendColor = NULL;
129 driver->BlendEquationSeparate = NULL;
130 driver->BlendFuncSeparate = NULL;
131 driver->ClipPlane = NULL;
132 driver->ColorMask = NULL;
133 driver->ColorMaterial = NULL;
134 driver->CullFace = NULL;
135 driver->DrawBuffer = NULL;
136 driver->FrontFace = NULL;
137 driver->DepthFunc = NULL;
138 driver->DepthMask = NULL;
139 driver->DepthRange = NULL;
140 driver->Enable = NULL;
141 driver->Fogfv = NULL;
142 driver->Lightfv = NULL;
143 driver->LightModelfv = NULL;
144 driver->LineStipple = NULL;
145 driver->LineWidth = NULL;
146 driver->LogicOpcode = NULL;
147 driver->PointParameterfv = NULL;
148 driver->PointSize = NULL;
149 driver->PolygonMode = NULL;
150 driver->PolygonOffset = NULL;
151 driver->PolygonStipple = NULL;
152 driver->ReadBuffer = NULL;
153 driver->RenderMode = NULL;
154 driver->Scissor = NULL;
155 driver->ShadeModel = NULL;
156 driver->StencilFuncSeparate = NULL;
157 driver->StencilOpSeparate = NULL;
158 driver->StencilMaskSeparate = NULL;
159 driver->TexGen = NULL;
160 driver->TexEnv = NULL;
161 driver->TexParameter = NULL;
162 driver->Viewport = NULL;
163
164 /* buffer objects */
165 _mesa_init_buffer_object_functions(driver);
166
167 /* query objects */
168 _mesa_init_query_object_functions(driver);
169
170 _mesa_init_sync_object_functions(driver);
171
172 /* memory objects */
173 _mesa_init_memory_object_functions(driver);
174
175 driver->NewFramebuffer = _mesa_new_framebuffer;
176 driver->NewRenderbuffer = _swrast_new_soft_renderbuffer;
177 driver->MapRenderbuffer = _swrast_map_soft_renderbuffer;
178 driver->UnmapRenderbuffer = _swrast_unmap_soft_renderbuffer;
179 driver->RenderTexture = _swrast_render_texture;
180 driver->FinishRenderTexture = _swrast_finish_render_texture;
181 driver->FramebufferRenderbuffer = _mesa_FramebufferRenderbuffer_sw;
182 driver->ValidateFramebuffer = _mesa_validate_framebuffer;
183
184 driver->BlitFramebuffer = _swrast_BlitFramebuffer;
185 driver->DiscardFramebuffer = NULL;
186
187 _mesa_init_barrier_functions(driver);
188 _mesa_init_shader_object_functions(driver);
189 _mesa_init_transform_feedback_functions(driver);
190 _mesa_init_sampler_object_functions(driver);
191
192 /* T&L stuff */
193 driver->CurrentExecPrimitive = 0;
194 driver->CurrentSavePrimitive = 0;
195 driver->NeedFlush = 0;
196 driver->SaveNeedFlush = 0;
197
198 driver->ProgramStringNotify = _tnl_program_string;
199 driver->LightingSpaceChange = NULL;
200
201 /* GL_ARB_texture_storage */
202 driver->AllocTextureStorage = _mesa_AllocTextureStorage_sw;
203
204 /* GL_ARB_texture_view */
205 driver->TextureView = NULL;
206
207 /* GL_ARB_texture_multisample */
208 driver->GetSamplePosition = NULL;
209
210 /* Multithreading */
211 driver->SetBackgroundContext = NULL;
212 }
213
214
215 /**
216 * Call the ctx->Driver.* state functions with current values to initialize
217 * driver state.
218 * Only the Intel drivers use this so far.
219 */
220 void
_mesa_init_driver_state(struct gl_context * ctx)221 _mesa_init_driver_state(struct gl_context *ctx)
222 {
223 ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
224
225 ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
226
227 ctx->Driver.BlendEquationSeparate(ctx,
228 ctx->Color.Blend[0].EquationRGB,
229 ctx->Color.Blend[0].EquationA);
230
231 ctx->Driver.BlendFuncSeparate(ctx,
232 ctx->Color.Blend[0].SrcRGB,
233 ctx->Color.Blend[0].DstRGB,
234 ctx->Color.Blend[0].SrcA,
235 ctx->Color.Blend[0].DstA);
236
237 ctx->Driver.ColorMask(ctx,
238 GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0),
239 GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1),
240 GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2),
241 GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3));
242
243 ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
244 ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
245 ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
246
247 ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
248 ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
249 ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
250 ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
251 ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
252 ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
253 ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
254 ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
255 ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
256 ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
257 ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
258 ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.EnableFlags);
259 ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
260 ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
261 ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
262 ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
263 ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
264 ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
265
266 ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
267 {
268 GLfloat mode = (GLfloat) ctx->Fog.Mode;
269 ctx->Driver.Fogfv(ctx, GL_FOG_MODE, &mode);
270 }
271 ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
272 ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
273 ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
274
275 ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
276
277 {
278 GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
279 ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
280 }
281
282 ctx->Driver.LineWidth(ctx, ctx->Line.Width);
283 ctx->Driver.LogicOpcode(ctx, ctx->Color._LogicOp);
284 ctx->Driver.PointSize(ctx, ctx->Point.Size);
285 ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
286 ctx->Driver.Scissor(ctx);
287 ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
288 ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
289 ctx->Stencil.Function[0],
290 ctx->Stencil.Ref[0],
291 ctx->Stencil.ValueMask[0]);
292 ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
293 ctx->Stencil.Function[1],
294 ctx->Stencil.Ref[1],
295 ctx->Stencil.ValueMask[1]);
296 ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
297 ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
298 ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
299 ctx->Stencil.FailFunc[0],
300 ctx->Stencil.ZFailFunc[0],
301 ctx->Stencil.ZPassFunc[0]);
302 ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
303 ctx->Stencil.FailFunc[1],
304 ctx->Stencil.ZFailFunc[1],
305 ctx->Stencil.ZPassFunc[1]);
306
307
308 ctx->Driver.DrawBuffer(ctx);
309 }
310