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/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 #include "swrast/s_renderbuffer.h"
  54
  55 #include "driverfuncs.h"
  56 #include "meta.h"
  57
  58
  59
  60 /**
  61  * Plug in default functions for all pointers in the dd_function_table
  62  * structure.
  63  * Device drivers should call this function and then plug in any
  64  * functions which it wants to override.
  65  * Some functions (pointers) MUST be implemented by all drivers (REQUIRED).
  66  *
  67  * \param table the dd_function_table to initialize
  68  */
  69 void
  70 _mesa_init_driver_functions(struct dd_function_table *driver)
  71 {
  72    memset(driver, 0, sizeof(*driver));
  73
  74    driver->GetString = NULL;  /* REQUIRED! */
  75    driver->UpdateState = NULL;  /* REQUIRED! */
  76    driver->GetBufferSize = NULL;  /* REQUIRED! */
  77    driver->ResizeBuffers = _mesa_resize_framebuffer;
  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->QuerySamplesForFormat = NULL;
  94    driver->TexImage = _mesa_store_teximage;
  95    driver->TexSubImage = _mesa_store_texsubimage;
  96    driver->GetTexImage = _mesa_meta_GetTexImage;
  97    driver->CopyTexSubImage = _mesa_meta_CopyTexSubImage;
  98    driver->GenerateMipmap = _mesa_meta_GenerateMipmap;
  99    driver->TestProxyTexImage = _mesa_test_proxy_teximage;
 100    driver->CompressedTexImage = _mesa_store_compressed_teximage;
 101    driver->CompressedTexSubImage = _mesa_store_compressed_texsubimage;
 102    driver->GetCompressedTexImage = _mesa_get_compressed_teximage;
 103    driver->BindTexture = NULL;
 104    driver->NewTextureObject = _mesa_new_texture_object;
 105    driver->DeleteTexture = _mesa_delete_texture_object;
 106    driver->NewTextureImage = _swrast_new_texture_image;
 107    driver->DeleteTextureImage = _swrast_delete_texture_image;
 108    driver->AllocTextureImageBuffer = _swrast_alloc_texture_image_buffer;
 109    driver->FreeTextureImageBuffer = _swrast_free_texture_image_buffer;
 110    driver->MapTextureImage = _swrast_map_teximage;
 111    driver->UnmapTextureImage = _swrast_unmap_teximage;
 112    driver->DrawTex = _mesa_meta_DrawTex;
 113
 114    /* Vertex/fragment programs */
 115    driver->BindProgram = NULL;
 116    driver->NewProgram = _mesa_new_program;
 117    driver->DeleteProgram = _mesa_delete_program;
 118
 119    /* simple state commands */
 120    driver->AlphaFunc = NULL;
 121    driver->BlendColor = NULL;
 122    driver->BlendEquationSeparate = NULL;
 123    driver->BlendFuncSeparate = NULL;
 124    driver->ClipPlane = NULL;
 125    driver->ColorMask = NULL;
 126    driver->ColorMaterial = NULL;
 127    driver->CullFace = NULL;
 128    driver->DrawBuffer = NULL;
 129    driver->DrawBuffers = NULL;
 130    driver->FrontFace = NULL;
 131    driver->DepthFunc = NULL;
 132    driver->DepthMask = NULL;
 133    driver->DepthRange = NULL;
 134    driver->Enable = NULL;
 135    driver->Fogfv = NULL;
 136    driver->Hint = NULL;
 137    driver->Lightfv = NULL;
 138    driver->LightModelfv = NULL;
 139    driver->LineStipple = NULL;
 140    driver->LineWidth = NULL;
 141    driver->LogicOpcode = NULL;
 142    driver->PointParameterfv = NULL;
 143    driver->PointSize = NULL;
 144    driver->PolygonMode = NULL;
 145    driver->PolygonOffset = NULL;
 146    driver->PolygonStipple = NULL;
 147    driver->ReadBuffer = NULL;
 148    driver->RenderMode = NULL;
 149    driver->Scissor = NULL;
 150    driver->ShadeModel = NULL;
 151    driver->StencilFuncSeparate = NULL;
 152    driver->StencilOpSeparate = NULL;
 153    driver->StencilMaskSeparate = NULL;
 154    driver->TexGen = NULL;
 155    driver->TexEnv = NULL;
 156    driver->TexParameter = NULL;
 157    driver->Viewport = NULL;
 158
 159    /* buffer objects */
 160    _mesa_init_buffer_object_functions(driver);
 161
 162    /* query objects */
 163    _mesa_init_query_object_functions(driver);
 164
 165    _mesa_init_sync_object_functions(driver);
 166
 167    driver->NewFramebuffer = _mesa_new_framebuffer;
 168    driver->NewRenderbuffer = _swrast_new_soft_renderbuffer;
 169    driver->MapRenderbuffer = _swrast_map_soft_renderbuffer;
 170    driver->UnmapRenderbuffer = _swrast_unmap_soft_renderbuffer;
 171    driver->RenderTexture = _swrast_render_texture;
 172    driver->FinishRenderTexture = _swrast_finish_render_texture;
 173    driver->FramebufferRenderbuffer = _mesa_framebuffer_renderbuffer;
 174    driver->ValidateFramebuffer = _mesa_validate_framebuffer;
 175
 176    driver->BlitFramebuffer = _swrast_BlitFramebuffer;
 177    driver->DiscardFramebuffer = NULL;
 178
 179    _mesa_init_texture_barrier_functions(driver);
 180
 181    /* APPLE_vertex_array_object */
 182    driver->NewArrayObject = _mesa_new_array_object;
 183    driver->DeleteArrayObject = _mesa_delete_array_object;
 184    driver->BindArrayObject = NULL;
 185
 186    _mesa_init_shader_object_functions(driver);
 187
 188    _mesa_init_transform_feedback_functions(driver);
 189
 190    _mesa_init_sampler_object_functions(driver);
 191
 192    /* T&L stuff */
 193    driver->CurrentExecPrimitive = 0;
 194    driver->CurrentSavePrimitive = 0;
 195    driver->NeedFlush = 0;
 196    driver->SaveNeedFlush = 0;
 197
 198    driver->ProgramStringNotify = _tnl_program_string;
 199    driver->FlushVertices = NULL;
 200    driver->SaveFlushVertices = NULL;
 201    driver->NotifySaveBegin = NULL;
 202    driver->LightingSpaceChange = NULL;
 203
 204    /* display list */
 205    driver->NewList = NULL;
 206    driver->EndList = NULL;
 207    driver->BeginCallList = NULL;
 208    driver->EndCallList = NULL;
 209
 210    /* GL_ARB_texture_storage */
 211    driver->AllocTextureStorage = _swrast_AllocTextureStorage;
 212 }
 213
 214
 215 /**
 216  * Call the ctx->Driver.* state functions with current values to initialize
 217  * driver state.
 218  * Only the Intel drivers use this so far.
 219  */
 220 void
 221 _mesa_init_driver_state(struct gl_context *ctx)
 222 {
 223    ctx->Driver.AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
 224
 225    ctx->Driver.BlendColor(ctx, ctx->Color.BlendColor);
 226
 227    ctx->Driver.BlendEquationSeparate(ctx,
 228                                      ctx->Color.Blend[0].EquationRGB,
 229                                      ctx->Color.Blend[0].EquationA);
 230
 231    ctx->Driver.BlendFuncSeparate(ctx,
 232                                  ctx->Color.Blend[0].SrcRGB,
 233                                  ctx->Color.Blend[0].DstRGB,
 234                                  ctx->Color.Blend[0].SrcA,
 235                                  ctx->Color.Blend[0].DstA);
 236
 237    if (ctx->Driver.ColorMaskIndexed) {
 238       GLuint i;
 239       for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
 240          ctx->Driver.ColorMaskIndexed(ctx, i,
 241                                       ctx->Color.ColorMask[i][RCOMP],
 242                                       ctx->Color.ColorMask[i][GCOMP],
 243                                       ctx->Color.ColorMask[i][BCOMP],
 244                                       ctx->Color.ColorMask[i][ACOMP]);
 245       }
 246    }
 247    else {
 248       ctx->Driver.ColorMask(ctx,
 249                             ctx->Color.ColorMask[0][RCOMP],
 250                             ctx->Color.ColorMask[0][GCOMP],
 251                             ctx->Color.ColorMask[0][BCOMP],
 252                             ctx->Color.ColorMask[0][ACOMP]);
 253    }
 254
 255    ctx->Driver.CullFace(ctx, ctx->Polygon.CullFaceMode);
 256    ctx->Driver.DepthFunc(ctx, ctx->Depth.Func);
 257    ctx->Driver.DepthMask(ctx, ctx->Depth.Mask);
 258
 259    ctx->Driver.Enable(ctx, GL_ALPHA_TEST, ctx->Color.AlphaEnabled);
 260    ctx->Driver.Enable(ctx, GL_BLEND, ctx->Color.BlendEnabled);
 261    ctx->Driver.Enable(ctx, GL_COLOR_LOGIC_OP, ctx->Color.ColorLogicOpEnabled);
 262    ctx->Driver.Enable(ctx, GL_COLOR_SUM, ctx->Fog.ColorSumEnabled);
 263    ctx->Driver.Enable(ctx, GL_CULL_FACE, ctx->Polygon.CullFlag);
 264    ctx->Driver.Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
 265    ctx->Driver.Enable(ctx, GL_DITHER, ctx->Color.DitherFlag);
 266    ctx->Driver.Enable(ctx, GL_FOG, ctx->Fog.Enabled);
 267    ctx->Driver.Enable(ctx, GL_LIGHTING, ctx->Light.Enabled);
 268    ctx->Driver.Enable(ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag);
 269    ctx->Driver.Enable(ctx, GL_POLYGON_STIPPLE, ctx->Polygon.StippleFlag);
 270    ctx->Driver.Enable(ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled);
 271    ctx->Driver.Enable(ctx, GL_STENCIL_TEST, ctx->Stencil._Enabled);
 272    ctx->Driver.Enable(ctx, GL_TEXTURE_1D, GL_FALSE);
 273    ctx->Driver.Enable(ctx, GL_TEXTURE_2D, GL_FALSE);
 274    ctx->Driver.Enable(ctx, GL_TEXTURE_RECTANGLE_NV, GL_FALSE);
 275    ctx->Driver.Enable(ctx, GL_TEXTURE_3D, GL_FALSE);
 276    ctx->Driver.Enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
 277
 278    ctx->Driver.Fogfv(ctx, GL_FOG_COLOR, ctx->Fog.Color);
 279    {
 280       GLfloat mode = (GLfloat) ctx->Fog.Mode;
 281       ctx->Driver.Fogfv(ctx, GL_FOG_MODE, &mode);
 282    }
 283    ctx->Driver.Fogfv(ctx, GL_FOG_DENSITY, &ctx->Fog.Density);
 284    ctx->Driver.Fogfv(ctx, GL_FOG_START, &ctx->Fog.Start);
 285    ctx->Driver.Fogfv(ctx, GL_FOG_END, &ctx->Fog.End);
 286
 287    ctx->Driver.FrontFace(ctx, ctx->Polygon.FrontFace);
 288
 289    {
 290       GLfloat f = (GLfloat) ctx->Light.Model.ColorControl;
 291       ctx->Driver.LightModelfv(ctx, GL_LIGHT_MODEL_COLOR_CONTROL, &f);
 292    }
 293
 294    ctx->Driver.LineWidth(ctx, ctx->Line.Width);
 295    ctx->Driver.LogicOpcode(ctx, ctx->Color.LogicOp);
 296    ctx->Driver.PointSize(ctx, ctx->Point.Size);
 297    ctx->Driver.PolygonStipple(ctx, (const GLubyte *) ctx->PolygonStipple);
 298    ctx->Driver.Scissor(ctx, ctx->Scissor.X, ctx->Scissor.Y,
 299                        ctx->Scissor.Width, ctx->Scissor.Height);
 300    ctx->Driver.ShadeModel(ctx, ctx->Light.ShadeModel);
 301    ctx->Driver.StencilFuncSeparate(ctx, GL_FRONT,
 302                                    ctx->Stencil.Function[0],
 303                                    ctx->Stencil.Ref[0],
 304                                    ctx->Stencil.ValueMask[0]);
 305    ctx->Driver.StencilFuncSeparate(ctx, GL_BACK,
 306                                    ctx->Stencil.Function[1],
 307                                    ctx->Stencil.Ref[1],
 308                                    ctx->Stencil.ValueMask[1]);
 309    ctx->Driver.StencilMaskSeparate(ctx, GL_FRONT, ctx->Stencil.WriteMask[0]);
 310    ctx->Driver.StencilMaskSeparate(ctx, GL_BACK, ctx->Stencil.WriteMask[1]);
 311    ctx->Driver.StencilOpSeparate(ctx, GL_FRONT,
 312                                  ctx->Stencil.FailFunc[0],
 313                                  ctx->Stencil.ZFailFunc[0],
 314                                  ctx->Stencil.ZPassFunc[0]);
 315    ctx->Driver.StencilOpSeparate(ctx, GL_BACK,
 316                                  ctx->Stencil.FailFunc[1],
 317                                  ctx->Stencil.ZFailFunc[1],
 318                                  ctx->Stencil.ZPassFunc[1]);
 319
 320
 321    ctx->Driver.DrawBuffer(ctx, ctx->Color.DrawBuffer[0]);
 322 }