driverfuncs.c revision cdc920a0 
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/texcompress.h"
35#include "main/texformat.h"
36#include "main/texgetimage.h"
37#include "main/teximage.h"
38#include "main/texobj.h"
39#include "main/texstore.h"
40#if FEATURE_ARB_vertex_buffer_object
41#include "main/bufferobj.h"
42#endif
43#if FEATURE_EXT_framebuffer_object
44#include "main/fbobject.h"
45#include "main/texrender.h"
46#endif
47#if FEATURE_ARB_sync
48#include "main/syncobj.h"
49#endif
50
51#include "shader/program.h"
52#include "shader/shader_api.h"
53#include "tnl/tnl.h"
54#include "swrast/swrast.h"
55
56#include "driverfuncs.h"
57#include "meta.h"
58
59
60
61/**
62 * Plug in default functions for all pointers in the dd_function_table
63 * structure.
64 * Device drivers should call this function and then plug in any
65 * functions which it wants to override.
66 * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
67 *
68 * \param table the dd_function_table to initialize
69 */
70void
71_mesa_init_driver_functions(struct dd_function_table *driver)
72{
73   memset(driver, 0, sizeof(*driver));
74
75   driver->GetString = NULL;  /* REQUIRED! */
76   driver->UpdateState = NULL;  /* REQUIRED! */
77   driver->GetBufferSize = NULL;  /* REQUIRED! */
78   driver->ResizeBuffers = _mesa_resize_framebuffer;
79   driver->Error = NULL;
80
81   driver->Finish = NULL;
82   driver->Flush = NULL;
83
84   /* framebuffer/image functions */
85   driver->Clear = _swrast_Clear;
86   driver->Accum = _swrast_Accum;
87   driver->RasterPos = _tnl_RasterPos;
88   driver->DrawPixels = _swrast_DrawPixels;
89   driver->ReadPixels = _swrast_ReadPixels;
90   driver->CopyPixels = _swrast_CopyPixels;
91   driver->Bitmap = _swrast_Bitmap;
92
93   /* Texture functions */
94   driver->ChooseTextureFormat = _mesa_choose_tex_format;
95   driver->TexImage1D = _mesa_store_teximage1d;
96   driver->TexImage2D = _mesa_store_teximage2d;
97   driver->TexImage3D = _mesa_store_teximage3d;
98   driver->TexSubImage1D = _mesa_store_texsubimage1d;
99   driver->TexSubImage2D = _mesa_store_texsubimage2d;
100   driver->TexSubImage3D = _mesa_store_texsubimage3d;
101   driver->GetTexImage = _mesa_get_teximage;
102   driver->CopyTexImage1D = _mesa_meta_CopyTexImage1D;
103   driver->CopyTexImage2D = _mesa_meta_CopyTexImage2D;
104   driver->CopyTexSubImage1D = _mesa_meta_CopyTexSubImage1D;
105   driver->CopyTexSubImage2D = _mesa_meta_CopyTexSubImage2D;
106   driver->CopyTexSubImage3D = _mesa_meta_CopyTexSubImage3D;
107   driver->GenerateMipmap = _mesa_meta_GenerateMipmap;
108   driver->TestProxyTexImage = _mesa_test_proxy_teximage;
109   driver->CompressedTexImage1D = _mesa_store_compressed_teximage1d;
110   driver->CompressedTexImage2D = _mesa_store_compressed_teximage2d;
111   driver->CompressedTexImage3D = _mesa_store_compressed_teximage3d;
112   driver->CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
113   driver->CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
114   driver->CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
115   driver->GetCompressedTexImage = _mesa_get_compressed_teximage;
116   driver->BindTexture = NULL;
117   driver->NewTextureObject = _mesa_new_texture_object;
118   driver->DeleteTexture = _mesa_delete_texture_object;
119   driver->NewTextureImage = _mesa_new_texture_image;
120   driver->FreeTexImageData = _mesa_free_texture_image_data;
121   driver->MapTexture = NULL;
122   driver->UnmapTexture = NULL;
123   driver->TextureMemCpy = memcpy;
124   driver->IsTextureResident = NULL;
125   driver->UpdateTexturePalette = NULL;
126
127   /* imaging */
128   driver->CopyColorTable = _mesa_meta_CopyColorTable;
129   driver->CopyColorSubTable = _mesa_meta_CopyColorSubTable;
130   driver->CopyConvolutionFilter1D = _mesa_meta_CopyConvolutionFilter1D;
131   driver->CopyConvolutionFilter2D = _mesa_meta_CopyConvolutionFilter2D;
132
133   /* Vertex/fragment programs */
134   driver->BindProgram = NULL;
135   driver->NewProgram = _mesa_new_program;
136   driver->DeleteProgram = _mesa_delete_program;
137
138   /* simple state commands */
139   driver->AlphaFunc = NULL;
140   driver->BlendColor = NULL;
141   driver->BlendEquationSeparate = NULL;
142   driver->BlendFuncSeparate = NULL;
143   driver->ClearColor = NULL;
144   driver->ClearDepth = NULL;
145   driver->ClearStencil = NULL;
146   driver->ClipPlane = NULL;
147   driver->ColorMask = NULL;
148   driver->ColorMaterial = NULL;
149   driver->CullFace = NULL;
150   driver->DrawBuffer = NULL;
151   driver->DrawBuffers = NULL;
152   driver->FrontFace = NULL;
153   driver->DepthFunc = NULL;
154   driver->DepthMask = NULL;
155   driver->DepthRange = NULL;
156   driver->Enable = NULL;
157   driver->Fogfv = NULL;
158   driver->Hint = NULL;
159   driver->Lightfv = NULL;
160   driver->LightModelfv = NULL;
161   driver->LineStipple = NULL;
162   driver->LineWidth = NULL;
163   driver->LogicOpcode = NULL;
164   driver->PointParameterfv = NULL;
165   driver->PointSize = NULL;
166   driver->PolygonMode = NULL;
167   driver->PolygonOffset = NULL;
168   driver->PolygonStipple = NULL;
169   driver->ReadBuffer = NULL;
170   driver->RenderMode = NULL;
171   driver->Scissor = NULL;
172   driver->ShadeModel = NULL;
173   driver->StencilFuncSeparate = NULL;
174   driver->StencilOpSeparate = NULL;
175   driver->StencilMaskSeparate = NULL;
176   driver->TexGen = NULL;
177   driver->TexEnv = NULL;
178   driver->TexParameter = NULL;
179   driver->Viewport = NULL;
180
181   /* state queries */
182   driver->GetBooleanv = NULL;
183   driver->GetDoublev = NULL;
184   driver->GetFloatv = NULL;
185   driver->GetIntegerv = NULL;
186   driver->GetInteger64v = NULL;
187   driver->GetPointerv = NULL;
188
189   /* buffer objects */
190   _mesa_init_buffer_object_functions(driver);
191
192   /* query objects */
193   _mesa_init_query_object_functions(driver);
194
195#if FEATURE_ARB_sync
196   _mesa_init_sync_object_functions(driver);
197#endif
198
199#if FEATURE_EXT_framebuffer_object
200   driver->NewFramebuffer = _mesa_new_framebuffer;
201   driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
202   driver->RenderTexture = _mesa_render_texture;
203   driver->FinishRenderTexture = _mesa_finish_render_texture;
204   driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
205#endif
206
207#if FEATURE_EXT_framebuffer_blit
208   driver->BlitFramebuffer = _swrast_BlitFramebuffer;
209#endif
210
211   /* APPLE_vertex_array_object */
212   driver->NewArrayObject = _mesa_new_array_object;
213   driver->DeleteArrayObject = _mesa_delete_array_object;
214   driver->BindArrayObject = NULL;
215
216   /* T&L stuff */
217   driver->NeedValidate = GL_FALSE;
218   driver->ValidateTnlModule = NULL;
219   driver->CurrentExecPrimitive = 0;
220   driver->CurrentSavePrimitive = 0;
221   driver->NeedFlush = 0;
222   driver->SaveNeedFlush = 0;
223
224   driver->ProgramStringNotify = _tnl_program_string;
225   driver->FlushVertices = NULL;
226   driver->SaveFlushVertices = NULL;
227   driver->NotifySaveBegin = NULL;
228   driver->LightingSpaceChange = NULL;
229
230   /* display list */
231   driver->NewList = NULL;
232   driver->EndList = NULL;
233   driver->BeginCallList = NULL;
234   driver->EndCallList = NULL;
235
236
237   /* XXX temporary here */
238   _mesa_init_glsl_driver_functions(driver);
239}
240
241
242/**
243 * Call the ctx->Driver.* state functions with current values to initialize
244 * driver state.
245 * Only the Intel drivers use this so far.
246 */
247void
248_mesa_init_driver_state(GLcontext *ctx)
249{
250   ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
251
252   ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
253
254   ctx->Driver.BlendEquationSeparate(ctx,
255                                     ctx->Color.BlendEquationRGB,
256                                     ctx->Color.BlendEquationA);
257
258   ctx->Driver.BlendFuncSeparate(ctx,
259                                 ctx->Color.BlendSrcRGB,
260                                 ctx->Color.BlendDstRGB,
261                                 ctx->Color.BlendSrcA, ctx->Color.BlendDstA);
262
263   if (ctx->Driver.ColorMaskIndexed) {
264      GLuint i;
265      for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
266         ctx->Driver.ColorMaskIndexed(ctx, i,
267                                      ctx->Color.ColorMask[0][RCOMP],
268                                      ctx->Color.ColorMask[0][GCOMP],
269                                      ctx->Color.ColorMask[0][BCOMP],
270                                      ctx->Color.ColorMask[0][ACOMP]);
271      }
272   }
273   else {
274      ctx->Driver.ColorMask(ctx,
275                            ctx->Color.ColorMask[0][RCOMP],
276                            ctx->Color.ColorMask[0][GCOMP],
277                            ctx->Color.ColorMask[0][BCOMP],
278                            ctx->Color.ColorMask[0][ACOMP]);
279   }
280
281   ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
282   ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
283   ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
284
285   ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
286   ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
287   ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
288   ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
289   ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
290   ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
291   ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
292   ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
293   ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
294   ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
295   ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
296   ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled);
297   ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil._Enabled);
298   ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
299   ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
300   ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
301   ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
302   ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
303
304   ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
305   ctx->Driver.Fogfv(ctx, GL_FOG_MODE, 0);
306   ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
307   ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
308   ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
309
310   ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
311
312   {
313      GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
314      ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
315   }
316
317   ctx->Driver.LineWidth(ctx, ctx->Line.Width);
318   ctx->Driver.LogicOpcode(ctx, ctx->Color.LogicOp);
319   ctx->Driver.PointSize(ctx, ctx->Point.Size);
320   ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
321   ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
322                       ctx->Scissor.Width, ctx->Scissor.Height);
323   ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
324   ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
325                                   ctx->Stencil.Function[0],
326                                   ctx->Stencil.Ref[0],
327                                   ctx->Stencil.ValueMask[0]);
328   ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
329                                   ctx->Stencil.Function[1],
330                                   ctx->Stencil.Ref[1],
331                                   ctx->Stencil.ValueMask[1]);
332   ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
333   ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
334   ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
335                                 ctx->Stencil.FailFunc[0],
336                                 ctx->Stencil.ZFailFunc[0],
337                                 ctx->Stencil.ZPassFunc[0]);
338   ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
339                                 ctx->Stencil.FailFunc[1],
340                                 ctx->Stencil.ZFailFunc[1],
341                                 ctx->Stencil.ZPassFunc[1]);
342
343
344   ctx->Driver.DrawBuffer(ctx, ctx->Color.DrawBuffer[0]);
345}
346