driverfuncs.c revision a638676473bd7bf2d47275ed2fd708e5b9d47e0b 
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 "glheader.h"
27#include "imports.h"
28#include "arrayobj.h"
29#include "buffers.h"
30#include "context.h"
31#include "framebuffer.h"
32#include "mipmap.h"
33#include "queryobj.h"
34#include "renderbuffer.h"
35#include "texcompress.h"
36#include "texformat.h"
37#include "teximage.h"
38#include "texobj.h"
39#include "texstore.h"
40#if FEATURE_ARB_vertex_buffer_object
41#include "bufferobj.h"
42#endif
43#if FEATURE_EXT_framebuffer_object
44#include "fbobject.h"
45#include "texrender.h"
46#endif
47
48#include "shader/program.h"
49#include "shader/prog_execute.h"
50#include "shader/shader_api.h"
51#include "driverfuncs.h"
52#include "tnl/tnl.h"
53#include "swrast/swrast.h"
54
55
56
57/**
58 * Plug in default functions for all pointers in the dd_function_table
59 * structure.
60 * Device drivers should call this function and then plug in any
61 * functions which it wants to override.
62 * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
63 *
64 * \param table the dd_function_table to initialize
65 */
66void
67_mesa_init_driver_functions(struct dd_function_table *driver)
68{
69   _mesa_bzero(driver, sizeof(*driver));
70
71   driver->GetString = NULL;  /* REQUIRED! */
72   driver->UpdateState = NULL;  /* REQUIRED! */
73   driver->GetBufferSize = NULL;  /* REQUIRED! */
74   driver->ResizeBuffers = _mesa_resize_framebuffer;
75   driver->Error = NULL;
76
77   driver->Finish = NULL;
78   driver->Flush = NULL;
79
80   /* framebuffer/image functions */
81   driver->Clear = _swrast_Clear;
82   driver->Accum = _swrast_Accum;
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 = _swrast_copy_teximage1d;
98   driver->CopyTexImage2D = _swrast_copy_teximage2d;
99   driver->CopyTexSubImage1D = _swrast_copy_texsubimage1d;
100   driver->CopyTexSubImage2D = _swrast_copy_texsubimage2d;
101   driver->CopyTexSubImage3D = _swrast_copy_texsubimage3d;
102   driver->GenerateMipmap = _mesa_generate_mipmap;
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->CompressedTextureSize = _mesa_compressed_texture_size;
112   driver->BindTexture = NULL;
113   driver->NewTextureObject = _mesa_new_texture_object;
114   driver->DeleteTexture = _mesa_delete_texture_object;
115   driver->NewTextureImage = _mesa_new_texture_image;
116   driver->FreeTexImageData = _mesa_free_texture_image_data;
117   driver->MapTexture = NULL;
118   driver->UnmapTexture = NULL;
119   driver->TextureMemCpy = _mesa_memcpy;
120   driver->IsTextureResident = NULL;
121   driver->PrioritizeTexture = NULL;
122   driver->ActiveTexture = NULL;
123   driver->UpdateTexturePalette = NULL;
124
125   /* imaging */
126   driver->CopyColorTable = _swrast_CopyColorTable;
127   driver->CopyColorSubTable = _swrast_CopyColorSubTable;
128   driver->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
129   driver->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
130
131   /* Vertex/fragment programs */
132   driver->BindProgram = NULL;
133   driver->NewProgram = _mesa_new_program;
134   driver->DeleteProgram = _mesa_delete_program;
135#if FEATURE_MESA_program_debug
136   driver->GetProgramRegister = _mesa_get_program_register;
137#endif /* FEATURE_MESA_program_debug */
138
139   /* simple state commands */
140   driver->AlphaFunc = NULL;
141   driver->BlendColor = NULL;
142   driver->BlendEquationSeparate = NULL;
143   driver->BlendFuncSeparate = NULL;
144   driver->ClearColor = NULL;
145   driver->ClearDepth = NULL;
146   driver->ClearIndex = NULL;
147   driver->ClearStencil = NULL;
148   driver->ClipPlane = NULL;
149   driver->ColorMask = NULL;
150   driver->ColorMaterial = NULL;
151   driver->CullFace = NULL;
152   driver->DrawBuffer = NULL;
153   driver->DrawBuffers = NULL;
154   driver->FrontFace = NULL;
155   driver->DepthFunc = NULL;
156   driver->DepthMask = NULL;
157   driver->DepthRange = NULL;
158   driver->Enable = NULL;
159   driver->Fogfv = NULL;
160   driver->Hint = NULL;
161   driver->IndexMask = NULL;
162   driver->Lightfv = NULL;
163   driver->LightModelfv = NULL;
164   driver->LineStipple = NULL;
165   driver->LineWidth = NULL;
166   driver->LogicOpcode = NULL;
167   driver->PointParameterfv = NULL;
168   driver->PointSize = NULL;
169   driver->PolygonMode = NULL;
170   driver->PolygonOffset = NULL;
171   driver->PolygonStipple = NULL;
172   driver->ReadBuffer = NULL;
173   driver->RenderMode = NULL;
174   driver->Scissor = NULL;
175   driver->ShadeModel = NULL;
176   driver->StencilFuncSeparate = NULL;
177   driver->StencilOpSeparate = NULL;
178   driver->StencilMaskSeparate = NULL;
179   driver->TexGen = NULL;
180   driver->TexEnv = NULL;
181   driver->TexParameter = NULL;
182   driver->TextureMatrix = NULL;
183   driver->Viewport = NULL;
184
185   /* vertex arrays */
186   driver->VertexPointer = NULL;
187   driver->NormalPointer = NULL;
188   driver->ColorPointer = NULL;
189   driver->FogCoordPointer = NULL;
190   driver->IndexPointer = NULL;
191   driver->SecondaryColorPointer = NULL;
192   driver->TexCoordPointer = NULL;
193   driver->EdgeFlagPointer = NULL;
194   driver->VertexAttribPointer = NULL;
195   driver->LockArraysEXT = NULL;
196   driver->UnlockArraysEXT = NULL;
197
198   /* state queries */
199   driver->GetBooleanv = NULL;
200   driver->GetDoublev = NULL;
201   driver->GetFloatv = NULL;
202   driver->GetIntegerv = NULL;
203   driver->GetPointerv = NULL;
204
205#if FEATURE_ARB_vertex_buffer_object
206   driver->NewBufferObject = _mesa_new_buffer_object;
207   driver->DeleteBuffer = _mesa_delete_buffer_object;
208   driver->BindBuffer = NULL;
209   driver->BufferData = _mesa_buffer_data;
210   driver->BufferSubData = _mesa_buffer_subdata;
211   driver->GetBufferSubData = _mesa_buffer_get_subdata;
212   driver->MapBuffer = _mesa_buffer_map;
213   driver->UnmapBuffer = _mesa_buffer_unmap;
214#endif
215
216#if FEATURE_EXT_framebuffer_object
217   driver->NewFramebuffer = _mesa_new_framebuffer;
218   driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
219   driver->RenderTexture = _mesa_render_texture;
220   driver->FinishRenderTexture = _mesa_finish_render_texture;
221   driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
222#endif
223
224#if FEATURE_EXT_framebuffer_blit
225   driver->BlitFramebuffer = _swrast_BlitFramebuffer;
226#endif
227
228   /* query objects */
229   driver->NewQueryObject = _mesa_new_query_object;
230   driver->BeginQuery = NULL;
231   driver->EndQuery = NULL;
232
233   /* APPLE_vertex_array_object */
234   driver->NewArrayObject = _mesa_new_array_object;
235   driver->DeleteArrayObject = _mesa_delete_array_object;
236   driver->BindArrayObject = NULL;
237
238   /* T&L stuff */
239   driver->NeedValidate = GL_FALSE;
240   driver->ValidateTnlModule = NULL;
241   driver->CurrentExecPrimitive = 0;
242   driver->CurrentSavePrimitive = 0;
243   driver->NeedFlush = 0;
244   driver->SaveNeedFlush = 0;
245
246   driver->ProgramStringNotify = _tnl_program_string;
247   driver->FlushVertices = NULL;
248   driver->SaveFlushVertices = NULL;
249   driver->NotifySaveBegin = NULL;
250   driver->LightingSpaceChange = NULL;
251
252   /* display list */
253   driver->NewList = NULL;
254   driver->EndList = NULL;
255   driver->BeginCallList = NULL;
256   driver->EndCallList = NULL;
257
258
259   /* XXX temporary here */
260   _mesa_init_glsl_driver_functions(driver);
261}
262
263
264/**
265 * Plug in Mesa's GLSL functions.
266 */
267void
268_mesa_init_glsl_driver_functions(struct dd_function_table *driver)
269{
270   driver->AttachShader = _mesa_attach_shader;
271   driver->BindAttribLocation = _mesa_bind_attrib_location;
272   driver->CompileShader = _mesa_compile_shader;
273   driver->CreateProgram = _mesa_create_program;
274   driver->CreateShader = _mesa_create_shader;
275   driver->DeleteProgram2 = _mesa_delete_program2;
276   driver->DeleteShader = _mesa_delete_shader;
277   driver->DetachShader = _mesa_detach_shader;
278   driver->GetActiveAttrib = _mesa_get_active_attrib;
279   driver->GetActiveUniform = _mesa_get_active_uniform;
280   driver->GetAttachedShaders = _mesa_get_attached_shaders;
281   driver->GetAttribLocation = _mesa_get_attrib_location;
282   driver->GetHandle = _mesa_get_handle;
283   driver->GetProgramiv = _mesa_get_programiv;
284   driver->GetProgramInfoLog = _mesa_get_program_info_log;
285   driver->GetShaderiv = _mesa_get_shaderiv;
286   driver->GetShaderInfoLog = _mesa_get_shader_info_log;
287   driver->GetShaderSource = _mesa_get_shader_source;
288   driver->GetUniformfv = _mesa_get_uniformfv;
289   driver->GetUniformLocation = _mesa_get_uniform_location;
290   driver->IsProgram = _mesa_is_program;
291   driver->IsShader = _mesa_is_shader;
292   driver->LinkProgram = _mesa_link_program;
293   driver->ShaderSource = _mesa_shader_source;
294   driver->Uniform = _mesa_uniform;
295   driver->UniformMatrix = _mesa_uniform_matrix;
296   driver->UseProgram = _mesa_use_program;
297   driver->ValidateProgram = _mesa_validate_program;
298}
299
300
301/**
302 * Call the ctx->Driver.* state functions with current values to initialize
303 * driver state.
304 * Only the Intel drivers use this so far.
305 */
306void
307_mesa_init_driver_state(GLcontext *ctx)
308{
309   ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
310
311   ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
312
313   ctx->Driver.BlendEquationSeparate(ctx,
314                                     ctx->Color.BlendEquationRGB,
315                                     ctx->Color.BlendEquationA);
316
317   ctx->Driver.BlendFuncSeparate(ctx,
318                                 ctx->Color.BlendSrcRGB,
319                                 ctx->Color.BlendDstRGB,
320                                 ctx->Color.BlendSrcA, ctx->Color.BlendDstA);
321
322   ctx->Driver.ColorMask(ctx,
323                         ctx->Color.ColorMask[RCOMP],
324                         ctx->Color.ColorMask[GCOMP],
325                         ctx->Color.ColorMask[BCOMP],
326                         ctx->Color.ColorMask[ACOMP]);
327
328   ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
329   ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
330   ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
331
332   ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
333   ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
334   ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
335   ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
336   ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
337   ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
338   ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
339   ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
340   ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
341   ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
342   ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
343   ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled);
344   ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
345   ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
346   ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
347   ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
348   ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
349   ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
350
351   ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
352   ctx->Driver.Fogfv(ctx, GL_FOG_MODE, 0);
353   ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
354   ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
355   ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
356
357   ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
358
359   {
360      GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
361      ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
362   }
363
364   ctx->Driver.LineWidth(ctx, ctx->Line.Width);
365   ctx->Driver.LogicOpcode(ctx, ctx->Color.LogicOp);
366   ctx->Driver.PointSize(ctx, ctx->Point.Size);
367   ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
368   ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
369                       ctx->Scissor.Width, ctx->Scissor.Height);
370   ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
371   ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
372                                   ctx->Stencil.Function[0],
373                                   ctx->Stencil.Ref[0],
374                                   ctx->Stencil.ValueMask[0]);
375   ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
376                                   ctx->Stencil.Function[1],
377                                   ctx->Stencil.Ref[1],
378                                   ctx->Stencil.ValueMask[1]);
379   ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
380   ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
381   ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
382                                 ctx->Stencil.FailFunc[0],
383                                 ctx->Stencil.ZFailFunc[0],
384                                 ctx->Stencil.ZPassFunc[0]);
385   ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
386                                 ctx->Stencil.FailFunc[1],
387                                 ctx->Stencil.ZFailFunc[1],
388                                 ctx->Stencil.ZPassFunc[1]);
389
390
391   ctx->Driver.DrawBuffer(ctx, ctx->Color.DrawBuffer[0]);
392}
393