driverfuncs.c revision 848b8605 
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/imports.h"
28#include "main/accum.h"
29#include "main/arrayobj.h"
30#include "main/context.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/renderbuffer.h"
37#include "main/shaderobj.h"
38#include "main/texcompress.h"
39#include "main/texformat.h"
40#include "main/texgetimage.h"
41#include "main/teximage.h"
42#include "main/texobj.h"
43#include "main/texstorage.h"
44#include "main/texstore.h"
45#include "main/bufferobj.h"
46#include "main/fbobject.h"
47#include "main/samplerobj.h"
48#include "main/syncobj.h"
49#include "main/texturebarrier.h"
50#include "main/transformfeedback.h"
51
52#include "program/program.h"
53#include "tnl/tnl.h"
54#include "swrast/swrast.h"
55#include "swrast/s_renderbuffer.h"
56
57#include "driverfuncs.h"
58#include "meta.h"
59
60
61
62/**
63 * Plug in default functions for all pointers in the dd_function_table
64 * structure.
65 * Device drivers should call this function and then plug in any
66 * functions which it wants to override.
67 * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
68 *
69 * \param table the dd_function_table to initialize
70 */
71void
72_mesa_init_driver_functions(struct dd_function_table *driver)
73{
74   memset(driver, 0, sizeof(*driver));
75
76   driver->GetString = NULL;  /* REQUIRED! */
77   driver->UpdateState = NULL;  /* REQUIRED! */
78   driver->ResizeBuffers = _mesa_resize_framebuffer;
79
80   driver->Finish = NULL;
81   driver->Flush = NULL;
82
83   /* framebuffer/image functions */
84   driver->Clear = _swrast_Clear;
85   driver->Accum = _mesa_accum;
86   driver->RasterPos = _tnl_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->QuerySamplesForFormat = _mesa_query_samples_for_format;
95   driver->TexImage = _mesa_store_teximage;
96   driver->TexSubImage = _mesa_store_texsubimage;
97   driver->GetTexImage = _mesa_meta_GetTexImage;
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->GetCompressedTexImage = _mesa_get_compressed_teximage;
105   driver->BindTexture = NULL;
106   driver->NewTextureObject = _mesa_new_texture_object;
107   driver->DeleteTexture = _mesa_delete_texture_object;
108   driver->NewTextureImage = _swrast_new_texture_image;
109   driver->DeleteTextureImage = _swrast_delete_texture_image;
110   driver->AllocTextureImageBuffer = _swrast_alloc_texture_image_buffer;
111   driver->FreeTextureImageBuffer = _swrast_free_texture_image_buffer;
112   driver->MapTextureImage = _swrast_map_teximage;
113   driver->UnmapTextureImage = _swrast_unmap_teximage;
114   driver->DrawTex = _mesa_meta_DrawTex;
115
116   /* Vertex/fragment programs */
117   driver->BindProgram = NULL;
118   driver->NewProgram = _mesa_new_program;
119   driver->DeleteProgram = _mesa_delete_program;
120
121   /* simple state commands */
122   driver->AlphaFunc = NULL;
123   driver->BlendColor = NULL;
124   driver->BlendEquationSeparate = NULL;
125   driver->BlendFuncSeparate = NULL;
126   driver->ClipPlane = NULL;
127   driver->ColorMask = NULL;
128   driver->ColorMaterial = NULL;
129   driver->CullFace = NULL;
130   driver->DrawBuffer = NULL;
131   driver->DrawBuffers = NULL;
132   driver->FrontFace = NULL;
133   driver->DepthFunc = NULL;
134   driver->DepthMask = NULL;
135   driver->DepthRange = NULL;
136   driver->Enable = NULL;
137   driver->Fogfv = NULL;
138   driver->Hint = NULL;
139   driver->Lightfv = NULL;
140   driver->LightModelfv = NULL;
141   driver->LineStipple = NULL;
142   driver->LineWidth = NULL;
143   driver->LogicOpcode = NULL;
144   driver->PointParameterfv = NULL;
145   driver->PointSize = NULL;
146   driver->PolygonMode = NULL;
147   driver->PolygonOffset = NULL;
148   driver->PolygonStipple = NULL;
149   driver->ReadBuffer = NULL;
150   driver->RenderMode = NULL;
151   driver->Scissor = NULL;
152   driver->ShadeModel = NULL;
153   driver->StencilFuncSeparate = NULL;
154   driver->StencilOpSeparate = NULL;
155   driver->StencilMaskSeparate = NULL;
156   driver->TexGen = NULL;
157   driver->TexEnv = NULL;
158   driver->TexParameter = NULL;
159   driver->Viewport = NULL;
160
161   /* buffer objects */
162   _mesa_init_buffer_object_functions(driver);
163
164   /* query objects */
165   _mesa_init_query_object_functions(driver);
166
167   _mesa_init_sync_object_functions(driver);
168
169   driver->NewFramebuffer = _mesa_new_framebuffer;
170   driver->NewRenderbuffer = _swrast_new_soft_renderbuffer;
171   driver->MapRenderbuffer = _swrast_map_soft_renderbuffer;
172   driver->UnmapRenderbuffer = _swrast_unmap_soft_renderbuffer;
173   driver->RenderTexture = _swrast_render_texture;
174   driver->FinishRenderTexture = _swrast_finish_render_texture;
175   driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
176   driver->ValidateFramebuffer = _mesa_validate_framebuffer;
177
178   driver->BlitFramebuffer = _swrast_BlitFramebuffer;
179   driver->DiscardFramebuffer = NULL;
180
181   _mesa_init_texture_barrier_functions(driver);
182
183   /* APPLE_vertex_array_object */
184   driver->NewArrayObject = _mesa_new_vao;
185   driver->DeleteArrayObject = _mesa_delete_vao;
186   driver->BindArrayObject = NULL;
187
188   _mesa_init_shader_object_functions(driver);
189
190   _mesa_init_transform_feedback_functions(driver);
191
192   _mesa_init_sampler_object_functions(driver);
193
194   /* T&L stuff */
195   driver->CurrentExecPrimitive = 0;
196   driver->CurrentSavePrimitive = 0;
197   driver->NeedFlush = 0;
198   driver->SaveNeedFlush = 0;
199
200   driver->ProgramStringNotify = _tnl_program_string;
201   driver->FlushVertices = NULL;
202   driver->SaveFlushVertices = NULL;
203   driver->NotifySaveBegin = NULL;
204   driver->LightingSpaceChange = NULL;
205
206   /* display list */
207   driver->NewList = NULL;
208   driver->EndList = NULL;
209   driver->BeginCallList = NULL;
210   driver->EndCallList = NULL;
211
212   /* GL_ARB_texture_storage */
213   driver->AllocTextureStorage = _mesa_alloc_texture_storage;
214
215   /* GL_ARB_texture_view */
216   driver->TextureView = NULL;
217
218   /* GL_ARB_texture_multisample */
219   driver->GetSamplePosition = NULL;
220}
221
222
223/**
224 * Call the ctx->Driver.* state functions with current values to initialize
225 * driver state.
226 * Only the Intel drivers use this so far.
227 */
228void
229_mesa_init_driver_state(struct gl_context *ctx)
230{
231   ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
232
233   ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
234
235   ctx->Driver.BlendEquationSeparate(ctx,
236                                     ctx->Color.Blend[0].EquationRGB,
237                                     ctx->Color.Blend[0].EquationA);
238
239   ctx->Driver.BlendFuncSeparate(ctx,
240                                 ctx->Color.Blend[0].SrcRGB,
241                                 ctx->Color.Blend[0].DstRGB,
242                                 ctx->Color.Blend[0].SrcA,
243                                 ctx->Color.Blend[0].DstA);
244
245   if (ctx->Driver.ColorMaskIndexed) {
246      GLuint i;
247      for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
248         ctx->Driver.ColorMaskIndexed(ctx, i,
249                                      ctx->Color.ColorMask[i][RCOMP],
250                                      ctx->Color.ColorMask[i][GCOMP],
251                                      ctx->Color.ColorMask[i][BCOMP],
252                                      ctx->Color.ColorMask[i][ACOMP]);
253      }
254   }
255   else {
256      ctx->Driver.ColorMask(ctx,
257                            ctx->Color.ColorMask[0][RCOMP],
258                            ctx->Color.ColorMask[0][GCOMP],
259                            ctx->Color.ColorMask[0][BCOMP],
260                            ctx->Color.ColorMask[0][ACOMP]);
261   }
262
263   ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
264   ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
265   ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
266
267   ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
268   ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
269   ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
270   ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
271   ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
272   ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
273   ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
274   ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
275   ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
276   ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
277   ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
278   ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.EnableFlags);
279   ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil._Enabled);
280   ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
281   ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
282   ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
283   ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
284   ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
285
286   ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
287   {
288      GLfloat mode = (GLfloat) ctx->Fog.Mode;
289      ctx->Driver.Fogfv(ctx, GL_FOG_MODE, &mode);
290   }
291   ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
292   ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
293   ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
294
295   ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
296
297   {
298      GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
299      ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
300   }
301
302   ctx->Driver.LineWidth(ctx, ctx->Line.Width);
303   ctx->Driver.LogicOpcode(ctx, ctx->Color.LogicOp);
304   ctx->Driver.PointSize(ctx, ctx->Point.Size);
305   ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
306   ctx->Driver.Scissor(ctx);
307   ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
308   ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
309                                   ctx->Stencil.Function[0],
310                                   ctx->Stencil.Ref[0],
311                                   ctx->Stencil.ValueMask[0]);
312   ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
313                                   ctx->Stencil.Function[1],
314                                   ctx->Stencil.Ref[1],
315                                   ctx->Stencil.ValueMask[1]);
316   ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
317   ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
318   ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
319                                 ctx->Stencil.FailFunc[0],
320                                 ctx->Stencil.ZFailFunc[0],
321                                 ctx->Stencil.ZPassFunc[0]);
322   ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
323                                 ctx->Stencil.FailFunc[1],
324                                 ctx->Stencil.ZFailFunc[1],
325                                 ctx->Stencil.ZPassFunc[1]);
326
327
328   ctx->Driver.DrawBuffer(ctx, ctx->Color.DrawBuffer[0]);
329}
330