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