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