driverfuncs.c revision c1f859d4 
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/buffers.h"
30#include "main/context.h"
31#include "main/framebuffer.h"
32#include "main/mipmap.h"
33#include "main/queryobj.h"
34#include "main/renderbuffer.h"
35#include "main/texcompress.h"
36#include "main/texformat.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
48#include "shader/program.h"
49#include "shader/prog_execute.h"
50#include "shader/shader_api.h"
51#include "tnl/tnl.h"
52#include "swrast/swrast.h"
53
54#include "driverfuncs.h"
55
56
57
58/**
59 * Plug in default functions for all pointers in the dd_function_table
60 * structure.
61 * Device drivers should call this function and then plug in any
62 * functions which it wants to override.
63 * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
64 *
65 * \param table the dd_function_table to initialize
66 */
67void
68_mesa_init_driver_functions(struct dd_function_table *driver)
69{
70   _mesa_bzero(driver, sizeof(*driver));
71
72   driver->GetString = NULL;  /* REQUIRED! */
73   driver->UpdateState = NULL;  /* REQUIRED! */
74   driver->GetBufferSize = NULL;  /* REQUIRED! */
75   driver->ResizeBuffers = _mesa_resize_framebuffer;
76   driver->Error = NULL;
77
78   driver->Finish = NULL;
79   driver->Flush = NULL;
80
81   /* framebuffer/image functions */
82   driver->Clear = _swrast_Clear;
83   driver->Accum = _swrast_Accum;
84   driver->RasterPos = _tnl_RasterPos;
85   driver->DrawPixels = _swrast_DrawPixels;
86   driver->ReadPixels = _swrast_ReadPixels;
87   driver->CopyPixels = _swrast_CopyPixels;
88   driver->Bitmap = _swrast_Bitmap;
89
90   /* Texture functions */
91   driver->ChooseTextureFormat = _mesa_choose_tex_format;
92   driver->TexImage1D = _mesa_store_teximage1d;
93   driver->TexImage2D = _mesa_store_teximage2d;
94   driver->TexImage3D = _mesa_store_teximage3d;
95   driver->TexSubImage1D = _mesa_store_texsubimage1d;
96   driver->TexSubImage2D = _mesa_store_texsubimage2d;
97   driver->TexSubImage3D = _mesa_store_texsubimage3d;
98   driver->GetTexImage = _mesa_get_teximage;
99   driver->CopyTexImage1D = _swrast_copy_teximage1d;
100   driver->CopyTexImage2D = _swrast_copy_teximage2d;
101   driver->CopyTexSubImage1D = _swrast_copy_texsubimage1d;
102   driver->CopyTexSubImage2D = _swrast_copy_texsubimage2d;
103   driver->CopyTexSubImage3D = _swrast_copy_texsubimage3d;
104   driver->GenerateMipmap = _mesa_generate_mipmap;
105   driver->TestProxyTexImage = _mesa_test_proxy_teximage;
106   driver->CompressedTexImage1D = _mesa_store_compressed_teximage1d;
107   driver->CompressedTexImage2D = _mesa_store_compressed_teximage2d;
108   driver->CompressedTexImage3D = _mesa_store_compressed_teximage3d;
109   driver->CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
110   driver->CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
111   driver->CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
112   driver->GetCompressedTexImage = _mesa_get_compressed_teximage;
113   driver->CompressedTextureSize = _mesa_compressed_texture_size;
114   driver->BindTexture = NULL;
115   driver->NewTextureObject = _mesa_new_texture_object;
116   driver->DeleteTexture = _mesa_delete_texture_object;
117   driver->NewTextureImage = _mesa_new_texture_image;
118   driver->FreeTexImageData = _mesa_free_texture_image_data;
119   driver->MapTexture = NULL;
120   driver->UnmapTexture = NULL;
121   driver->TextureMemCpy = _mesa_memcpy;
122   driver->IsTextureResident = NULL;
123   driver->PrioritizeTexture = NULL;
124   driver->ActiveTexture = NULL;
125   driver->UpdateTexturePalette = NULL;
126
127   /* imaging */
128   driver->CopyColorTable = _swrast_CopyColorTable;
129   driver->CopyColorSubTable = _swrast_CopyColorSubTable;
130   driver->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
131   driver->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
132
133   /* Vertex/fragment programs */
134   driver->BindProgram = NULL;
135   driver->NewProgram = _mesa_new_program;
136   driver->DeleteProgram = _mesa_delete_program;
137#if FEATURE_MESA_program_debug
138   driver->GetProgramRegister = _mesa_get_program_register;
139#endif /* FEATURE_MESA_program_debug */
140
141   /* simple state commands */
142   driver->AlphaFunc = NULL;
143   driver->BlendColor = NULL;
144   driver->BlendEquationSeparate = NULL;
145   driver->BlendFuncSeparate = NULL;
146   driver->ClearColor = NULL;
147   driver->ClearDepth = NULL;
148   driver->ClearIndex = NULL;
149   driver->ClearStencil = NULL;
150   driver->ClipPlane = NULL;
151   driver->ColorMask = NULL;
152   driver->ColorMaterial = NULL;
153   driver->CullFace = NULL;
154   driver->DrawBuffer = NULL;
155   driver->DrawBuffers = NULL;
156   driver->FrontFace = NULL;
157   driver->DepthFunc = NULL;
158   driver->DepthMask = NULL;
159   driver->DepthRange = NULL;
160   driver->Enable = NULL;
161   driver->Fogfv = NULL;
162   driver->Hint = NULL;
163   driver->IndexMask = NULL;
164   driver->Lightfv = NULL;
165   driver->LightModelfv = NULL;
166   driver->LineStipple = NULL;
167   driver->LineWidth = NULL;
168   driver->LogicOpcode = NULL;
169   driver->PointParameterfv = NULL;
170   driver->PointSize = NULL;
171   driver->PolygonMode = NULL;
172   driver->PolygonOffset = NULL;
173   driver->PolygonStipple = NULL;
174   driver->ReadBuffer = NULL;
175   driver->RenderMode = NULL;
176   driver->Scissor = NULL;
177   driver->ShadeModel = NULL;
178   driver->StencilFuncSeparate = NULL;
179   driver->StencilOpSeparate = NULL;
180   driver->StencilMaskSeparate = NULL;
181   driver->TexGen = NULL;
182   driver->TexEnv = NULL;
183   driver->TexParameter = NULL;
184   driver->TextureMatrix = NULL;
185   driver->Viewport = NULL;
186
187   /* vertex arrays */
188   driver->VertexPointer = NULL;
189   driver->NormalPointer = NULL;
190   driver->ColorPointer = NULL;
191   driver->FogCoordPointer = NULL;
192   driver->IndexPointer = NULL;
193   driver->SecondaryColorPointer = NULL;
194   driver->TexCoordPointer = NULL;
195   driver->EdgeFlagPointer = NULL;
196   driver->VertexAttribPointer = NULL;
197   driver->LockArraysEXT = NULL;
198   driver->UnlockArraysEXT = NULL;
199
200   /* state queries */
201   driver->GetBooleanv = NULL;
202   driver->GetDoublev = NULL;
203   driver->GetFloatv = NULL;
204   driver->GetIntegerv = NULL;
205   driver->GetPointerv = NULL;
206
207#if FEATURE_ARB_vertex_buffer_object
208   driver->NewBufferObject = _mesa_new_buffer_object;
209   driver->DeleteBuffer = _mesa_delete_buffer_object;
210   driver->BindBuffer = NULL;
211   driver->BufferData = _mesa_buffer_data;
212   driver->BufferSubData = _mesa_buffer_subdata;
213   driver->GetBufferSubData = _mesa_buffer_get_subdata;
214   driver->MapBuffer = _mesa_buffer_map;
215   driver->UnmapBuffer = _mesa_buffer_unmap;
216#endif
217
218#if FEATURE_EXT_framebuffer_object
219   driver->NewFramebuffer = _mesa_new_framebuffer;
220   driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
221   driver->RenderTexture = _mesa_render_texture;
222   driver->FinishRenderTexture = _mesa_finish_render_texture;
223   driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
224#endif
225
226#if FEATURE_EXT_framebuffer_blit
227   driver->BlitFramebuffer = _swrast_BlitFramebuffer;
228#endif
229
230   /* query objects */
231   driver->NewQueryObject = _mesa_new_query_object;
232   driver->DeleteQuery = _mesa_delete_query;
233   driver->BeginQuery = _mesa_begin_query;
234   driver->EndQuery = _mesa_end_query;
235   driver->WaitQuery = _mesa_wait_query;
236
237   /* APPLE_vertex_array_object */
238   driver->NewArrayObject = _mesa_new_array_object;
239   driver->DeleteArrayObject = _mesa_delete_array_object;
240   driver->BindArrayObject = NULL;
241
242   /* T&L stuff */
243   driver->NeedValidate = GL_FALSE;
244   driver->ValidateTnlModule = NULL;
245   driver->CurrentExecPrimitive = 0;
246   driver->CurrentSavePrimitive = 0;
247   driver->NeedFlush = 0;
248   driver->SaveNeedFlush = 0;
249
250   driver->ProgramStringNotify = _tnl_program_string;
251   driver->FlushVertices = NULL;
252   driver->SaveFlushVertices = NULL;
253   driver->NotifySaveBegin = NULL;
254   driver->LightingSpaceChange = NULL;
255
256   /* display list */
257   driver->NewList = NULL;
258   driver->EndList = NULL;
259   driver->BeginCallList = NULL;
260   driver->EndCallList = NULL;
261
262
263   /* XXX temporary here */
264   _mesa_init_glsl_driver_functions(driver);
265}
266
267
268/**
269 * Call the ctx->Driver.* state functions with current values to initialize
270 * driver state.
271 * Only the Intel drivers use this so far.
272 */
273void
274_mesa_init_driver_state(GLcontext *ctx)
275{
276   ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
277
278   ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
279
280   ctx->Driver.BlendEquationSeparate(ctx,
281                                     ctx->Color.BlendEquationRGB,
282                                     ctx->Color.BlendEquationA);
283
284   ctx->Driver.BlendFuncSeparate(ctx,
285                                 ctx->Color.BlendSrcRGB,
286                                 ctx->Color.BlendDstRGB,
287                                 ctx->Color.BlendSrcA, ctx->Color.BlendDstA);
288
289   ctx->Driver.ColorMask(ctx,
290                         ctx->Color.ColorMask[RCOMP],
291                         ctx->Color.ColorMask[GCOMP],
292                         ctx->Color.ColorMask[BCOMP],
293                         ctx->Color.ColorMask[ACOMP]);
294
295   ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
296   ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
297   ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
298
299   ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
300   ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
301   ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
302   ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
303   ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
304   ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
305   ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
306   ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
307   ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
308   ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
309   ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
310   ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled);
311   ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
312   ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
313   ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
314   ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
315   ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
316   ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
317
318   ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
319   ctx->Driver.Fogfv(ctx, GL_FOG_MODE, 0);
320   ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
321   ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
322   ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
323
324   ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
325
326   {
327      GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
328      ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
329   }
330
331   ctx->Driver.LineWidth(ctx, ctx->Line.Width);
332   ctx->Driver.LogicOpcode(ctx, ctx->Color.LogicOp);
333   ctx->Driver.PointSize(ctx, ctx->Point.Size);
334   ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
335   ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
336                       ctx->Scissor.Width, ctx->Scissor.Height);
337   ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
338   ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
339                                   ctx->Stencil.Function[0],
340                                   ctx->Stencil.Ref[0],
341                                   ctx->Stencil.ValueMask[0]);
342   ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
343                                   ctx->Stencil.Function[1],
344                                   ctx->Stencil.Ref[1],
345                                   ctx->Stencil.ValueMask[1]);
346   ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
347   ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
348   ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
349                                 ctx->Stencil.FailFunc[0],
350                                 ctx->Stencil.ZFailFunc[0],
351                                 ctx->Stencil.ZPassFunc[0]);
352   ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
353                                 ctx->Stencil.FailFunc[1],
354                                 ctx->Stencil.ZFailFunc[1],
355                                 ctx->Stencil.ZPassFunc[1]);
356
357
358   ctx->Driver.DrawBuffer(ctx, ctx->Color.DrawBuffer[0]);
359}
360