driverfuncs.c revision f9995b30756140724f41daf963fa06167912be7f 
1/*
2 * Mesa 3-D graphics library
3 * Version:  7.1
4 *
5 * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26#include "main/glheader.h"
27#include "main/imports.h"
28#include "main/arrayobj.h"
29#include "main/context.h"
30#include "main/framebuffer.h"
31#include "main/mipmap.h"
32#include "main/queryobj.h"
33#include "main/renderbuffer.h"
34#include "main/shaderobj.h"
35#include "main/texcompress.h"
36#include "main/texformat.h"
37#include "main/texgetimage.h"
38#include "main/teximage.h"
39#include "main/texobj.h"
40#include "main/texstore.h"
41#include "main/bufferobj.h"
42#include "main/fbobject.h"
43#include "main/texrender.h"
44#include "main/syncobj.h"
45#include "main/transformfeedback.h"
46
47#include "program/program.h"
48#include "tnl/tnl.h"
49#include "swrast/swrast.h"
50
51#include "driverfuncs.h"
52#include "meta.h"
53
54
55
56/**
57 * Plug in default functions for all pointers in the dd_function_table
58 * structure.
59 * Device drivers should call this function and then plug in any
60 * functions which it wants to override.
61 * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
62 *
63 * \param table the dd_function_table to initialize
64 */
65void
66_mesa_init_driver_functions(struct dd_function_table *driver)
67{
68   memset(driver, 0, sizeof(*driver));
69
70   driver->GetString = NULL;  /* REQUIRED! */
71   driver->UpdateState = NULL;  /* REQUIRED! */
72   driver->GetBufferSize = NULL;  /* REQUIRED! */
73   driver->ResizeBuffers = _mesa_resize_framebuffer;
74   driver->Error = NULL;
75
76   driver->Finish = NULL;
77   driver->Flush = NULL;
78
79   /* framebuffer/image functions */
80   driver->Clear = _swrast_Clear;
81   driver->Accum = _swrast_Accum;
82   driver->RasterPos = _tnl_RasterPos;
83   driver->DrawPixels = _swrast_DrawPixels;
84   driver->ReadPixels = _swrast_ReadPixels;
85   driver->CopyPixels = _swrast_CopyPixels;
86   driver->Bitmap = _swrast_Bitmap;
87
88   /* Texture functions */
89   driver->ChooseTextureFormat = _mesa_choose_tex_format;
90   driver->TexImage1D = _mesa_store_teximage1d;
91   driver->TexImage2D = _mesa_store_teximage2d;
92   driver->TexImage3D = _mesa_store_teximage3d;
93   driver->TexSubImage1D = _mesa_store_texsubimage1d;
94   driver->TexSubImage2D = _mesa_store_texsubimage2d;
95   driver->TexSubImage3D = _mesa_store_texsubimage3d;
96   driver->GetTexImage = _mesa_get_teximage;
97   driver->CopyTexImage1D = _mesa_meta_CopyTexImage1D;
98   driver->CopyTexImage2D = _mesa_meta_CopyTexImage2D;
99   driver->CopyTexSubImage1D = _mesa_meta_CopyTexSubImage1D;
100   driver->CopyTexSubImage2D = _mesa_meta_CopyTexSubImage2D;
101   driver->CopyTexSubImage3D = _mesa_meta_CopyTexSubImage3D;
102   driver->GenerateMipmap = _mesa_meta_GenerateMipmap;
103   driver->TestProxyTexImage = _mesa_test_proxy_teximage;
104   driver->CompressedTexImage1D = _mesa_store_compressed_teximage1d;
105   driver->CompressedTexImage2D = _mesa_store_compressed_teximage2d;
106   driver->CompressedTexImage3D = _mesa_store_compressed_teximage3d;
107   driver->CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
108   driver->CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
109   driver->CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
110   driver->GetCompressedTexImage = _mesa_get_compressed_teximage;
111   driver->BindTexture = NULL;
112   driver->NewTextureObject = _mesa_new_texture_object;
113   driver->DeleteTexture = _mesa_delete_texture_object;
114   driver->NewTextureImage = _mesa_new_texture_image;
115   driver->FreeTexImageData = _mesa_free_texture_image_data;
116   driver->MapTexture = NULL;
117   driver->UnmapTexture = NULL;
118   driver->TextureMemCpy = memcpy;
119   driver->IsTextureResident = NULL;
120   driver->UpdateTexturePalette = NULL;
121
122   /* imaging */
123   driver->CopyColorTable = _mesa_meta_CopyColorTable;
124   driver->CopyColorSubTable = _mesa_meta_CopyColorSubTable;
125
126   /* Vertex/fragment programs */
127   driver->BindProgram = NULL;
128   driver->NewProgram = _mesa_new_program;
129   driver->DeleteProgram = _mesa_delete_program;
130
131   /* simple state commands */
132   driver->AlphaFunc = NULL;
133   driver->BlendColor = NULL;
134   driver->BlendEquationSeparate = NULL;
135   driver->BlendFuncSeparate = NULL;
136   driver->ClearColor = NULL;
137   driver->ClearDepth = NULL;
138   driver->ClearStencil = NULL;
139   driver->ClipPlane = NULL;
140   driver->ColorMask = NULL;
141   driver->ColorMaterial = NULL;
142   driver->CullFace = NULL;
143   driver->DrawBuffer = NULL;
144   driver->DrawBuffers = NULL;
145   driver->FrontFace = NULL;
146   driver->DepthFunc = NULL;
147   driver->DepthMask = NULL;
148   driver->DepthRange = NULL;
149   driver->Enable = NULL;
150   driver->Fogfv = NULL;
151   driver->Hint = NULL;
152   driver->Lightfv = NULL;
153   driver->LightModelfv = NULL;
154   driver->LineStipple = NULL;
155   driver->LineWidth = NULL;
156   driver->LogicOpcode = NULL;
157   driver->PointParameterfv = NULL;
158   driver->PointSize = NULL;
159   driver->PolygonMode = NULL;
160   driver->PolygonOffset = NULL;
161   driver->PolygonStipple = NULL;
162   driver->ReadBuffer = NULL;
163   driver->RenderMode = NULL;
164   driver->Scissor = NULL;
165   driver->ShadeModel = NULL;
166   driver->StencilFuncSeparate = NULL;
167   driver->StencilOpSeparate = NULL;
168   driver->StencilMaskSeparate = NULL;
169   driver->TexGen = NULL;
170   driver->TexEnv = NULL;
171   driver->TexParameter = NULL;
172   driver->Viewport = NULL;
173
174   /* buffer objects */
175   _mesa_init_buffer_object_functions(driver);
176
177   /* query objects */
178   _mesa_init_query_object_functions(driver);
179
180   _mesa_init_sync_object_functions(driver);
181
182   driver->NewFramebuffer = _mesa_new_framebuffer;
183   driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
184   driver->RenderTexture = _mesa_render_texture;
185   driver->FinishRenderTexture = _mesa_finish_render_texture;
186   driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
187
188   driver->BlitFramebuffer = _swrast_BlitFramebuffer;
189
190   /* APPLE_vertex_array_object */
191   driver->NewArrayObject = _mesa_new_array_object;
192   driver->DeleteArrayObject = _mesa_delete_array_object;
193   driver->BindArrayObject = NULL;
194
195   _mesa_init_shader_object_functions(driver);
196
197   _mesa_init_transform_feedback_functions(driver);
198
199   /* T&L stuff */
200   driver->NeedValidate = GL_FALSE;
201   driver->ValidateTnlModule = NULL;
202   driver->CurrentExecPrimitive = 0;
203   driver->CurrentSavePrimitive = 0;
204   driver->NeedFlush = 0;
205   driver->SaveNeedFlush = 0;
206
207   driver->ProgramStringNotify = _tnl_program_string;
208   driver->FlushVertices = NULL;
209   driver->SaveFlushVertices = NULL;
210   driver->NotifySaveBegin = NULL;
211   driver->LightingSpaceChange = NULL;
212
213   /* display list */
214   driver->NewList = NULL;
215   driver->EndList = NULL;
216   driver->BeginCallList = NULL;
217   driver->EndCallList = NULL;
218}
219
220
221/**
222 * Call the ctx->Driver.* state functions with current values to initialize
223 * driver state.
224 * Only the Intel drivers use this so far.
225 */
226void
227_mesa_init_driver_state(struct gl_context *ctx)
228{
229   ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
230
231   ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
232
233   ctx->Driver.BlendEquationSeparate(ctx,
234                                     ctx->Color.BlendEquationRGB,
235                                     ctx->Color.BlendEquationA);
236
237   ctx->Driver.BlendFuncSeparate(ctx,
238                                 ctx->Color.BlendSrcRGB,
239                                 ctx->Color.BlendDstRGB,
240                                 ctx->Color.BlendSrcA, ctx->Color.BlendDstA);
241
242   if (ctx->Driver.ColorMaskIndexed) {
243      GLuint i;
244      for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
245         ctx->Driver.ColorMaskIndexed(ctx, i,
246                                      ctx->Color.ColorMask[0][RCOMP],
247                                      ctx->Color.ColorMask[0][GCOMP],
248                                      ctx->Color.ColorMask[0][BCOMP],
249                                      ctx->Color.ColorMask[0][ACOMP]);
250      }
251   }
252   else {
253      ctx->Driver.ColorMask(ctx,
254                            ctx->Color.ColorMask[0][RCOMP],
255                            ctx->Color.ColorMask[0][GCOMP],
256                            ctx->Color.ColorMask[0][BCOMP],
257                            ctx->Color.ColorMask[0][ACOMP]);
258   }
259
260   ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
261   ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
262   ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
263
264   ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
265   ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
266   ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
267   ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
268   ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
269   ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
270   ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
271   ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
272   ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
273   ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
274   ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
275   ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled);
276   ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil._Enabled);
277   ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
278   ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
279   ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
280   ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
281   ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
282
283   ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
284   ctx->Driver.Fogfv(ctx, GL_FOG_MODE, 0);
285   ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
286   ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
287   ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
288
289   ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
290
291   {
292      GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
293      ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
294   }
295
296   ctx->Driver.LineWidth(ctx, ctx->Line.Width);
297   ctx->Driver.LogicOpcode(ctx, ctx->Color.LogicOp);
298   ctx->Driver.PointSize(ctx, ctx->Point.Size);
299   ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
300   ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
301                       ctx->Scissor.Width, ctx->Scissor.Height);
302   ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
303   ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
304                                   ctx->Stencil.Function[0],
305                                   ctx->Stencil.Ref[0],
306                                   ctx->Stencil.ValueMask[0]);
307   ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
308                                   ctx->Stencil.Function[1],
309                                   ctx->Stencil.Ref[1],
310                                   ctx->Stencil.ValueMask[1]);
311   ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
312   ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
313   ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
314                                 ctx->Stencil.FailFunc[0],
315                                 ctx->Stencil.ZFailFunc[0],
316                                 ctx->Stencil.ZPassFunc[0]);
317   ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
318                                 ctx->Stencil.FailFunc[1],
319                                 ctx->Stencil.ZFailFunc[1],
320                                 ctx->Stencil.ZPassFunc[1]);
321
322
323   ctx->Driver.DrawBuffer(ctx, ctx->Color.DrawBuffer[0]);
324}
325