src/mesa/drivers/common/driverfuncs.c

   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/texgetimage.h"
  38 #include "main/teximage.h"
  39 #include "main/texobj.h"
  40 #include "main/texstore.h"
  41 #if FEATURE_ARB_vertex_buffer_object
  42 #include "main/bufferobj.h"
  43 #endif
  44 #if FEATURE_EXT_framebuffer_object
  45 #include "main/fbobject.h"
  46 #include "main/texrender.h"
  47 #endif
  48
  49 #include "shader/program.h"
  50 #include "shader/prog_execute.h"
  51 #include "shader/shader_api.h"
  52 #include "tnl/tnl.h"
  53 #include "swrast/swrast.h"
  54
  55 #include "driverfuncs.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  */
  68 void
  69 _mesa_init_driver_functions(struct dd_function_table *driver)
  70 {
  71    _mesa_bzero(driver, 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 = _swrast_Accum;
  85    driver->RasterPos = _tnl_RasterPos;
  86    driver->DrawPixels = _swrast_DrawPixels;
  87    driver->ReadPixels = _swrast_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_get_teximage;
 100    driver->CopyTexImage1D = _swrast_copy_teximage1d;
 101    driver->CopyTexImage2D = _swrast_copy_teximage2d;
 102    driver->CopyTexSubImage1D = _swrast_copy_texsubimage1d;
 103    driver->CopyTexSubImage2D = _swrast_copy_texsubimage2d;
 104    driver->CopyTexSubImage3D = _swrast_copy_texsubimage3d;
 105    driver->GenerateMipmap = _mesa_generate_mipmap;
 106    driver->TestProxyTexImage = _mesa_test_proxy_teximage;
 107    driver->CompressedTexImage1D = _mesa_store_compressed_teximage1d;
 108    driver->CompressedTexImage2D = _mesa_store_compressed_teximage2d;
 109    driver->CompressedTexImage3D = _mesa_store_compressed_teximage3d;
 110    driver->CompressedTexSubImage1D = _mesa_store_compressed_texsubimage1d;
 111    driver->CompressedTexSubImage2D = _mesa_store_compressed_texsubimage2d;
 112    driver->CompressedTexSubImage3D = _mesa_store_compressed_texsubimage3d;
 113    driver->GetCompressedTexImage = _mesa_get_compressed_teximage;
 114    driver->CompressedTextureSize = _mesa_compressed_texture_size;
 115    driver->BindTexture = NULL;
 116    driver->NewTextureObject = _mesa_new_texture_object;
 117    driver->DeleteTexture = _mesa_delete_texture_object;
 118    driver->NewTextureImage = _mesa_new_texture_image;
 119    driver->FreeTexImageData = _mesa_free_texture_image_data;
 120    driver->MapTexture = NULL;
 121    driver->UnmapTexture = NULL;
 122    driver->TextureMemCpy = _mesa_memcpy;
 123    driver->IsTextureResident = NULL;
 124    driver->PrioritizeTexture = NULL;
 125    driver->ActiveTexture = NULL;
 126    driver->UpdateTexturePalette = NULL;
 127
 128    /* imaging */
 129    driver->CopyColorTable = _swrast_CopyColorTable;
 130    driver->CopyColorSubTable = _swrast_CopyColorSubTable;
 131    driver->CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
 132    driver->CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
 133
 134    /* Vertex/fragment programs */
 135    driver->BindProgram = NULL;
 136    driver->NewProgram = _mesa_new_program;
 137    driver->DeleteProgram = _mesa_delete_program;
 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    _mesa_init_buffer_object_functions(driver);
 206
 207 #if FEATURE_EXT_framebuffer_object
 208    driver->NewFramebuffer = _mesa_new_framebuffer;
 209    driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
 210    driver->RenderTexture = _mesa_render_texture;
 211    driver->FinishRenderTexture = _mesa_finish_render_texture;
 212    driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
 213 #endif
 214
 215 #if FEATURE_EXT_framebuffer_blit
 216    driver->BlitFramebuffer = _swrast_BlitFramebuffer;
 217 #endif
 218
 219    /* query objects */
 220    driver->NewQueryObject = _mesa_new_query_object;
 221    driver->DeleteQuery = _mesa_delete_query;
 222    driver->BeginQuery = _mesa_begin_query;
 223    driver->EndQuery = _mesa_end_query;
 224    driver->WaitQuery = _mesa_wait_query;
 225    driver->CheckQuery = _mesa_check_query;
 226
 227    /* APPLE_vertex_array_object */
 228    driver->NewArrayObject = _mesa_new_array_object;
 229    driver->DeleteArrayObject = _mesa_delete_array_object;
 230    driver->BindArrayObject = NULL;
 231
 232    /* T&L stuff */
 233    driver->NeedValidate = GL_FALSE;
 234    driver->ValidateTnlModule = NULL;
 235    driver->CurrentExecPrimitive = 0;
 236    driver->CurrentSavePrimitive = 0;
 237    driver->NeedFlush = 0;
 238    driver->SaveNeedFlush = 0;
 239
 240    driver->ProgramStringNotify = _tnl_program_string;
 241    driver->FlushVertices = NULL;
 242    driver->SaveFlushVertices = NULL;
 243    driver->NotifySaveBegin = NULL;
 244    driver->LightingSpaceChange = NULL;
 245
 246    /* display list */
 247    driver->NewList = NULL;
 248    driver->EndList = NULL;
 249    driver->BeginCallList = NULL;
 250    driver->EndCallList = NULL;
 251
 252
 253    /* XXX temporary here */
 254    _mesa_init_glsl_driver_functions(driver);
 255 }
 256
 257
 258 /**
 259  * Call the ctx->Driver.* state functions with current values to initialize
 260  * driver state.
 261  * Only the Intel drivers use this so far.
 262  */
 263 void
 264 _mesa_init_driver_state(GLcontext *ctx)
 265 {
 266    ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
 267
 268    ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
 269
 270    ctx->Driver.BlendEquationSeparate(ctx,
 271                                      ctx->Color.BlendEquationRGB,
 272                                      ctx->Color.BlendEquationA);
 273
 274    ctx->Driver.BlendFuncSeparate(ctx,
 275                                  ctx->Color.BlendSrcRGB,
 276                                  ctx->Color.BlendDstRGB,
 277                                  ctx->Color.BlendSrcA, ctx->Color.BlendDstA);
 278
 279    ctx->Driver.ColorMask(ctx,
 280                          ctx->Color.ColorMask[RCOMP],
 281                          ctx->Color.ColorMask[GCOMP],
 282                          ctx->Color.ColorMask[BCOMP],
 283                          ctx->Color.ColorMask[ACOMP]);
 284
 285    ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
 286    ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
 287    ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
 288
 289    ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
 290    ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
 291    ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
 292    ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
 293    ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
 294    ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
 295    ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
 296    ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
 297    ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
 298    ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
 299    ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
 300    ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled);
 301    ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil._Enabled);
 302    ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
 303    ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
 304    ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
 305    ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
 306    ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
 307
 308    ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
 309    ctx->Driver.Fogfv(ctx, GL_FOG_MODE, 0);
 310    ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
 311    ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
 312    ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
 313
 314    ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
 315
 316    {
 317       GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
 318       ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
 319    }
 320
 321    ctx->Driver.LineWidth(ctx, ctx->Line.Width);
 322    ctx->Driver.LogicOpcode(ctx, ctx->Color.LogicOp);
 323    ctx->Driver.PointSize(ctx, ctx->Point.Size);
 324    ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
 325    ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
 326                        ctx->Scissor.Width, ctx->Scissor.Height);
 327    ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
 328    ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
 329                                    ctx->Stencil.Function[0],
 330                                    ctx->Stencil.Ref[0],
 331                                    ctx->Stencil.ValueMask[0]);
 332    ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
 333                                    ctx->Stencil.Function[1],
 334                                    ctx->Stencil.Ref[1],
 335                                    ctx->Stencil.ValueMask[1]);
 336    ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
 337    ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
 338    ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
 339                                  ctx->Stencil.FailFunc[0],
 340                                  ctx->Stencil.ZFailFunc[0],
 341                                  ctx->Stencil.ZPassFunc[0]);
 342    ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
 343                                  ctx->Stencil.FailFunc[1],
 344                                  ctx->Stencil.ZFailFunc[1],
 345                                  ctx->Stencil.ZPassFunc[1]);
 346
 347
 348    ctx->Driver.DrawBuffer(ctx, ctx->Color.DrawBuffer[0]);
 349 }