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/accum.h"
28#include "main/arrayobj.h"
29#include "main/context.h"
30#include "main/draw.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/rastpos.h"
37#include "main/renderbuffer.h"
38#include "main/shaderobj.h"
39#include "main/texcompress.h"
40#include "main/texformat.h"
41#include "main/texgetimage.h"
42#include "main/teximage.h"
43#include "main/texobj.h"
44#include "main/texstorage.h"
45#include "main/texstore.h"
46#include "main/bufferobj.h"
47#include "main/fbobject.h"
48#include "main/samplerobj.h"
49#include "main/syncobj.h"
50#include "main/barrier.h"
51#include "main/transformfeedback.h"
52#include "main/externalobjects.h"
53
54#include "program/program.h"
55#include "tnl/tnl.h"
56#include "swrast/swrast.h"
57#include "swrast/s_renderbuffer.h"
58
59#include "driverfuncs.h"
60#include "meta.h"
61
62
63
64/**
65 * Plug in default functions for all pointers in the dd_function_table
66 * structure.
67 * Device drivers should call this function and then plug in any
68 * functions which it wants to override.
69 * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
70 *
71 * \param table the dd_function_table to initialize
72 */
73void
74_mesa_init_driver_functions(struct dd_function_table *driver)
75{
76   memset(driver, 0, sizeof(*driver));
77
78   driver->GetString = NULL;  /* REQUIRED! */
79   driver->UpdateState = NULL;  /* REQUIRED! */
80
81   driver->Finish = NULL;
82   driver->Flush = NULL;
83
84   /* framebuffer/image functions */
85   driver->Clear = _swrast_Clear;
86   driver->RasterPos = _mesa_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->QueryInternalFormat = _mesa_query_internal_format_default;
95   driver->TexImage = _mesa_store_teximage;
96   driver->TexSubImage = _mesa_store_texsubimage;
97   driver->GetTexSubImage = _mesa_meta_GetTexSubImage;
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->BindTexture = NULL;
105   driver->NewTextureObject = _mesa_new_texture_object;
106   driver->DeleteTexture = _mesa_delete_texture_object;
107   driver->NewTextureImage = _swrast_new_texture_image;
108   driver->DeleteTextureImage = _swrast_delete_texture_image;
109   driver->AllocTextureImageBuffer = _swrast_alloc_texture_image_buffer;
110   driver->FreeTextureImageBuffer = _swrast_free_texture_image_buffer;
111   driver->MapTextureImage = _swrast_map_teximage;
112   driver->UnmapTextureImage = _swrast_unmap_teximage;
113   driver->DrawTex = _mesa_meta_DrawTex;
114
115   /* Vertex/fragment programs */
116   driver->NewProgram = _mesa_new_program;
117   driver->DeleteProgram = _mesa_delete_program;
118
119   /* ATI_fragment_shader */
120   driver->NewATIfs = NULL;
121
122   /* Draw functions */
123   driver->Draw = NULL;
124   driver->DrawGallium = _mesa_draw_gallium_fallback;
125   driver->DrawGalliumMultiMode = _mesa_draw_gallium_multimode_fallback;
126   driver->DrawIndirect = NULL;
127   driver->DrawTransformFeedback = NULL;
128
129   /* simple state commands */
130   driver->AlphaFunc = NULL;
131   driver->BlendColor = NULL;
132   driver->BlendEquationSeparate = NULL;
133   driver->BlendFuncSeparate = NULL;
134   driver->ClipPlane = NULL;
135   driver->ColorMask = NULL;
136   driver->ColorMaterial = NULL;
137   driver->CullFace = NULL;
138   driver->DrawBuffer = NULL;
139   driver->FrontFace = NULL;
140   driver->DepthFunc = NULL;
141   driver->DepthMask = NULL;
142   driver->DepthRange = NULL;
143   driver->Enable = NULL;
144   driver->Fogfv = NULL;
145   driver->Lightfv = NULL;
146   driver->LightModelfv = NULL;
147   driver->LineStipple = NULL;
148   driver->LineWidth = NULL;
149   driver->LogicOpcode = NULL;
150   driver->PointParameterfv = NULL;
151   driver->PointSize = NULL;
152   driver->PolygonMode = NULL;
153   driver->PolygonOffset = NULL;
154   driver->PolygonStipple = NULL;
155   driver->ReadBuffer = NULL;
156   driver->RenderMode = NULL;
157   driver->Scissor = NULL;
158   driver->ShadeModel = NULL;
159   driver->StencilFuncSeparate = NULL;
160   driver->StencilOpSeparate = NULL;
161   driver->StencilMaskSeparate = NULL;
162   driver->TexGen = NULL;
163   driver->TexEnv = NULL;
164   driver->TexParameter = NULL;
165   driver->Viewport = NULL;
166
167   /* buffer objects */
168   _mesa_init_buffer_object_functions(driver);
169
170   /* query objects */
171   _mesa_init_query_object_functions(driver);
172
173   _mesa_init_sync_object_functions(driver);
174
175   /* memory objects */
176   _mesa_init_memory_object_functions(driver);
177
178   driver->NewFramebuffer = _mesa_new_framebuffer;
179   driver->NewRenderbuffer = _swrast_new_soft_renderbuffer;
180   driver->MapRenderbuffer = _swrast_map_soft_renderbuffer;
181   driver->UnmapRenderbuffer = _swrast_unmap_soft_renderbuffer;
182   driver->RenderTexture = _swrast_render_texture;
183   driver->FinishRenderTexture = _swrast_finish_render_texture;
184   driver->FramebufferRenderbuffer = _mesa_FramebufferRenderbuffer_sw;
185   driver->ValidateFramebuffer = _mesa_validate_framebuffer;
186
187   driver->BlitFramebuffer = _swrast_BlitFramebuffer;
188   driver->DiscardFramebuffer = NULL;
189
190   _mesa_init_barrier_functions(driver);
191   _mesa_init_shader_object_functions(driver);
192   _mesa_init_transform_feedback_functions(driver);
193   _mesa_init_sampler_object_functions(driver);
194
195   /* T&L stuff */
196   driver->CurrentExecPrimitive = 0;
197   driver->CurrentSavePrimitive = 0;
198   driver->NeedFlush = 0;
199   driver->SaveNeedFlush = 0;
200
201   driver->ProgramStringNotify = _tnl_program_string;
202   driver->LightingSpaceChange = NULL;
203
204   /* GL_ARB_texture_storage */
205   driver->AllocTextureStorage = _mesa_AllocTextureStorage_sw;
206
207   /* GL_ARB_texture_view */
208   driver->TextureView = NULL;
209
210   /* GL_ARB_texture_multisample */
211   driver->GetSamplePosition = NULL;
212
213   /* Multithreading */
214   driver->SetBackgroundContext = NULL;
215}
216
217
218/**
219 * Call the ctx->Driver.* state functions with current values to initialize
220 * driver state.
221 * Only the Intel drivers use this so far.
222 */
223void
224_mesa_init_driver_state(struct gl_context *ctx)
225{
226   ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
227
228   ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
229
230   ctx->Driver.BlendEquationSeparate(ctx,
231                                     ctx->Color.Blend[0].EquationRGB,
232                                     ctx->Color.Blend[0].EquationA);
233
234   ctx->Driver.BlendFuncSeparate(ctx,
235                                 ctx->Color.Blend[0].SrcRGB,
236                                 ctx->Color.Blend[0].DstRGB,
237                                 ctx->Color.Blend[0].SrcA,
238                                 ctx->Color.Blend[0].DstA);
239
240   ctx->Driver.ColorMask(ctx,
241                         GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 0),
242                         GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 1),
243                         GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 2),
244                         GET_COLORMASK_BIT(ctx->Color.ColorMask, 0, 3));
245
246   ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
247   ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
248   ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
249
250   ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
251   ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
252   ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
253   ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
254   ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
255   ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
256   ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
257   ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
258   ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
259   ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
260   ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
261   ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.EnableFlags);
262   ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
263   ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
264   ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
265   ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
266   ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
267   ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
268
269   ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
270   {
271      GLfloat mode = (GLfloat) ctx->Fog.Mode;
272      ctx->Driver.Fogfv(ctx, GL_FOG_MODE, &mode);
273   }
274   ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
275   ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
276   ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
277
278   ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
279
280   {
281      GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
282      ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
283   }
284
285   ctx->Driver.LineWidth(ctx, ctx->Line.Width);
286   ctx->Driver.LogicOpcode(ctx, ctx->Color._LogicOp);
287   ctx->Driver.PointSize(ctx, ctx->Point.Size);
288   ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
289   ctx->Driver.Scissor(ctx);
290   ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
291   ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
292                                   ctx->Stencil.Function[0],
293                                   ctx->Stencil.Ref[0],
294                                   ctx->Stencil.ValueMask[0]);
295   ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
296                                   ctx->Stencil.Function[1],
297                                   ctx->Stencil.Ref[1],
298                                   ctx->Stencil.ValueMask[1]);
299   ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
300   ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
301   ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
302                                 ctx->Stencil.FailFunc[0],
303                                 ctx->Stencil.ZFailFunc[0],
304                                 ctx->Stencil.ZPassFunc[0]);
305   ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
306                                 ctx->Stencil.FailFunc[1],
307                                 ctx->Stencil.ZFailFunc[1],
308                                 ctx->Stencil.ZPassFunc[1]);
309
310
311   ctx->Driver.DrawBuffer(ctx);
312}
313