driverfuncs.c revision 122c6768e3d4c1d1b57203eca70569f9301baab5 
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/accum.h"
29#include "main/arrayobj.h"
30#include "main/context.h"
31#include "main/framebuffer.h"
32#include "main/mipmap.h"
33#include "main/queryobj.h"
34#include "main/readpix.h"
35#include "main/renderbuffer.h"
36#include "main/shaderobj.h"
37#include "main/texcompress.h"
38#include "main/texformat.h"
39#include "main/texgetimage.h"
40#include "main/teximage.h"
41#include "main/texobj.h"
42#include "main/texstore.h"
43#include "main/bufferobj.h"
44#include "main/fbobject.h"
45#include "main/samplerobj.h"
46#include "main/syncobj.h"
47#include "main/texturebarrier.h"
48#include "main/transformfeedback.h"
49
50#include "program/program.h"
51#include "tnl/tnl.h"
52#include "swrast/swrast.h"
53
54#include "driverfuncs.h"
55#include "meta.h"
56
57
58
59/**
60 * Plug in default functions for all pointers in the dd_function_table
61 * structure.
62 * Device drivers should call this function and then plug in any
63 * functions which it wants to override.
64 * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
65 *
66 * \param table the dd_function_table to initialize
67 */
68void
69_mesa_init_driver_functions(struct dd_function_table *driver)
70{
71   memset(driver, 0, sizeof(*driver));
72
73   driver->GetString = NULL;  /* REQUIRED! */
74   driver->UpdateState = NULL;  /* REQUIRED! */
75   driver->GetBufferSize = NULL;  /* REQUIRED! */
76   driver->ResizeBuffers = _mesa_resize_framebuffer;
77   driver->Error = NULL;
78
79   driver->Finish = NULL;
80   driver->Flush = NULL;
81
82   /* framebuffer/image functions */
83   driver->Clear = _swrast_Clear;
84   driver->Accum = _mesa_accum;
85   driver->RasterPos = _tnl_RasterPos;
86   driver->DrawPixels = _swrast_DrawPixels;
87   driver->ReadPixels = _mesa_readpixels;
88   driver->CopyPixels = _swrast_CopyPixels;
89   driver->Bitmap = _swrast_Bitmap;
90
91   /* Texture functions */
92   driver->ChooseTextureFormat = _mesa_choose_tex_format;
93   driver->TexImage1D = _mesa_store_teximage1d;
94   driver->TexImage2D = _mesa_store_teximage2d;
95   driver->TexImage3D = _mesa_store_teximage3d;
96   driver->TexSubImage1D = _mesa_store_texsubimage1d;
97   driver->TexSubImage2D = _mesa_store_texsubimage2d;
98   driver->TexSubImage3D = _mesa_store_texsubimage3d;
99   driver->GetTexImage = _mesa_meta_GetTexImage;
100   driver->CopyTexSubImage1D = _mesa_meta_CopyTexSubImage1D;
101   driver->CopyTexSubImage2D = _mesa_meta_CopyTexSubImage2D;
102   driver->CopyTexSubImage3D = _mesa_meta_CopyTexSubImage3D;
103   driver->GenerateMipmap = _mesa_meta_GenerateMipmap;
104   driver->TestProxyTexImage = _mesa_test_proxy_teximage;
105   driver->CompressedTexImage1D = _mesa_store_compressed_teximage1d;
106   driver->CompressedTexImage2D = _mesa_store_compressed_teximage2d;
107   driver->CompressedTexImage3D = _mesa_store_compressed_teximage3d;
108   driver->CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
109   driver->CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
110   driver->CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
111   driver->GetCompressedTexImage = _mesa_get_compressed_teximage;
112   driver->BindTexture = NULL;
113   driver->NewTextureObject = _mesa_new_texture_object;
114   driver->DeleteTexture = _mesa_delete_texture_object;
115   driver->NewTextureImage = _swrast_new_texture_image;
116   driver->DeleteTextureImage = _swrast_delete_texture_image;
117   driver->AllocTextureImageBuffer = _swrast_alloc_texture_image_buffer;
118   driver->FreeTextureImageBuffer = _swrast_free_texture_image_buffer;
119   driver->MapTextureImage = _swrast_map_teximage;
120   driver->UnmapTextureImage = _swrast_unmap_teximage;
121   driver->MapTexture = NULL;
122   driver->UnmapTexture = NULL;
123   driver->DrawTex = _mesa_meta_DrawTex;
124
125   /* Vertex/fragment programs */
126   driver->BindProgram = NULL;
127   driver->NewProgram = _mesa_new_program;
128   driver->DeleteProgram = _mesa_delete_program;
129
130   /* simple state commands */
131   driver->AlphaFunc = NULL;
132   driver->BlendColor = NULL;
133   driver->BlendEquationSeparate = NULL;
134   driver->BlendFuncSeparate = NULL;
135   driver->ClearColor = NULL;
136   driver->ClearDepth = NULL;
137   driver->ClearStencil = NULL;
138   driver->ClipPlane = NULL;
139   driver->ColorMask = NULL;
140   driver->ColorMaterial = NULL;
141   driver->CullFace = NULL;
142   driver->DrawBuffer = NULL;
143   driver->DrawBuffers = NULL;
144   driver->FrontFace = NULL;
145   driver->DepthFunc = NULL;
146   driver->DepthMask = NULL;
147   driver->DepthRange = NULL;
148   driver->Enable = NULL;
149   driver->Fogfv = NULL;
150   driver->Hint = NULL;
151   driver->Lightfv = NULL;
152   driver->LightModelfv = NULL;
153   driver->LineStipple = NULL;
154   driver->LineWidth = NULL;
155   driver->LogicOpcode = NULL;
156   driver->PointParameterfv = NULL;
157   driver->PointSize = NULL;
158   driver->PolygonMode = NULL;
159   driver->PolygonOffset = NULL;
160   driver->PolygonStipple = NULL;
161   driver->ReadBuffer = NULL;
162   driver->RenderMode = NULL;
163   driver->Scissor = NULL;
164   driver->ShadeModel = NULL;
165   driver->StencilFuncSeparate = NULL;
166   driver->StencilOpSeparate = NULL;
167   driver->StencilMaskSeparate = NULL;
168   driver->TexGen = NULL;
169   driver->TexEnv = NULL;
170   driver->TexParameter = NULL;
171   driver->Viewport = NULL;
172
173   /* buffer objects */
174   _mesa_init_buffer_object_functions(driver);
175
176   /* query objects */
177   _mesa_init_query_object_functions(driver);
178
179   _mesa_init_sync_object_functions(driver);
180
181   driver->NewFramebuffer = _mesa_new_framebuffer;
182   driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
183   driver->MapRenderbuffer = _mesa_map_soft_renderbuffer;
184   driver->UnmapRenderbuffer = _mesa_unmap_soft_renderbuffer;
185   driver->RenderTexture = _swrast_render_texture;
186   driver->FinishRenderTexture = _swrast_finish_render_texture;
187   driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
188   driver->ValidateFramebuffer = _mesa_validate_framebuffer;
189
190   driver->BlitFramebuffer = _swrast_BlitFramebuffer;
191
192   _mesa_init_texture_barrier_functions(driver);
193
194   /* APPLE_vertex_array_object */
195   driver->NewArrayObject = _mesa_new_array_object;
196   driver->DeleteArrayObject = _mesa_delete_array_object;
197   driver->BindArrayObject = NULL;
198
199   _mesa_init_shader_object_functions(driver);
200
201   _mesa_init_transform_feedback_functions(driver);
202
203   _mesa_init_sampler_object_functions(driver);
204
205   /* T&L stuff */
206   driver->CurrentExecPrimitive = 0;
207   driver->CurrentSavePrimitive = 0;
208   driver->NeedFlush = 0;
209   driver->SaveNeedFlush = 0;
210
211   driver->ProgramStringNotify = _tnl_program_string;
212   driver->FlushVertices = NULL;
213   driver->SaveFlushVertices = NULL;
214   driver->PrepareExecBegin = NULL;
215   driver->NotifySaveBegin = NULL;
216   driver->LightingSpaceChange = NULL;
217
218   /* display list */
219   driver->NewList = NULL;
220   driver->EndList = NULL;
221   driver->BeginCallList = NULL;
222   driver->EndCallList = NULL;
223
224   /* GL_ARB_texture_storage */
225   driver->AllocTextureStorage = _swrast_AllocTextureStorage;
226}
227
228
229/**
230 * Call the ctx->Driver.* state functions with current values to initialize
231 * driver state.
232 * Only the Intel drivers use this so far.
233 */
234void
235_mesa_init_driver_state(struct gl_context *ctx)
236{
237   ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
238
239   ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
240
241   ctx->Driver.BlendEquationSeparate(ctx,
242                                     ctx->Color.Blend[0].EquationRGB,
243                                     ctx->Color.Blend[0].EquationA);
244
245   ctx->Driver.BlendFuncSeparate(ctx,
246                                 ctx->Color.Blend[0].SrcRGB,
247                                 ctx->Color.Blend[0].DstRGB,
248                                 ctx->Color.Blend[0].SrcA,
249                                 ctx->Color.Blend[0].DstA);
250
251   if (ctx->Driver.ColorMaskIndexed) {
252      GLuint i;
253      for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
254         ctx->Driver.ColorMaskIndexed(ctx, i,
255                                      ctx->Color.ColorMask[i][RCOMP],
256                                      ctx->Color.ColorMask[i][GCOMP],
257                                      ctx->Color.ColorMask[i][BCOMP],
258                                      ctx->Color.ColorMask[i][ACOMP]);
259      }
260   }
261   else {
262      ctx->Driver.ColorMask(ctx,
263                            ctx->Color.ColorMask[0][RCOMP],
264                            ctx->Color.ColorMask[0][GCOMP],
265                            ctx->Color.ColorMask[0][BCOMP],
266                            ctx->Color.ColorMask[0][ACOMP]);
267   }
268
269   ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
270   ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
271   ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
272
273   ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
274   ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
275   ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
276   ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
277   ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
278   ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
279   ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
280   ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
281   ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
282   ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
283   ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
284   ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled);
285   ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil._Enabled);
286   ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
287   ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
288   ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
289   ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
290   ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
291
292   ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
293   {
294      GLfloat mode = (GLfloat) ctx->Fog.Mode;
295      ctx->Driver.Fogfv(ctx, GL_FOG_MODE, &mode);
296   }
297   ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
298   ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
299   ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
300
301   ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
302
303   {
304      GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
305      ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
306   }
307
308   ctx->Driver.LineWidth(ctx, ctx->Line.Width);
309   ctx->Driver.LogicOpcode(ctx, ctx->Color.LogicOp);
310   ctx->Driver.PointSize(ctx, ctx->Point.Size);
311   ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
312   ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
313                       ctx->Scissor.Width, ctx->Scissor.Height);
314   ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
315   ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
316                                   ctx->Stencil.Function[0],
317                                   ctx->Stencil.Ref[0],
318                                   ctx->Stencil.ValueMask[0]);
319   ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
320                                   ctx->Stencil.Function[1],
321                                   ctx->Stencil.Ref[1],
322                                   ctx->Stencil.ValueMask[1]);
323   ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
324   ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
325   ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
326                                 ctx->Stencil.FailFunc[0],
327                                 ctx->Stencil.ZFailFunc[0],
328                                 ctx->Stencil.ZPassFunc[0]);
329   ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
330                                 ctx->Stencil.FailFunc[1],
331                                 ctx->Stencil.ZFailFunc[1],
332                                 ctx->Stencil.ZPassFunc[1]);
333
334
335   ctx->Driver.DrawBuffer(ctx, ctx->Color.DrawBuffer[0]);
336}
337