src/mesa/drivers/dri/i915/i915_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "i915_context.h"
  29 #include "main/imports.h"
  30 #include "main/macros.h"
  31 #include "intel_tex.h"
  32 #include "intel_tris.h"
  33 #include "tnl/t_context.h"
  34 #include "tnl/t_pipeline.h"
  35 #include "tnl/t_vertex.h"
  36
  37 #include "swrast/swrast.h"
  38 #include "swrast_setup/swrast_setup.h"
  39 #include "tnl/tnl.h"
  40
  41 #include "utils.h"
  42 #include "i915_reg.h"
  43 #include "i915_program.h"
  44
  45 #include "intel_regions.h"
  46 #include "intel_batchbuffer.h"
  47 #include "intel_tris.h"
  48 #include "intel_span.h"
  49 #include "intel_pixel.h"
  50
  51 /***************************************
  52  * Mesa's Driver Functions
  53  ***************************************/
  54
  55 /* Override intel default.
  56  */
  57 static void
  58 i915InvalidateState(GLcontext * ctx, GLuint new_state)
  59 {
  60    _swrast_InvalidateState(ctx, new_state);
  61    _swsetup_InvalidateState(ctx, new_state);
  62    _vbo_InvalidateState(ctx, new_state);
  63    _tnl_InvalidateState(ctx, new_state);
  64    _tnl_invalidate_vertex_state(ctx, new_state);
  65    intel_context(ctx)->NewGLState |= new_state;
  66
  67    /* Todo: gather state values under which tracked parameters become
  68     * invalidated, add callbacks for things like
  69     * ProgramLocalParameters, etc.
  70     */
  71    {
  72       struct i915_fragment_program *p =
  73          (struct i915_fragment_program *) ctx->FragmentProgram._Current;
  74       if (p && p->nr_params)
  75          p->params_uptodate = 0;
  76    }
  77
  78    if (new_state & (_NEW_FOG | _NEW_HINT | _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS))
  79       i915_update_fog(ctx);
  80    if (new_state & (_NEW_STENCIL | _NEW_BUFFERS | _NEW_POLYGON))
  81       i915_update_stencil(ctx);
  82    if (new_state & (_NEW_LIGHT))
  83        i915_update_provoking_vertex(ctx);
  84    if (new_state & (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS))
  85        i915_update_program(ctx);
  86 }
  87
  88
  89 static void
  90 i915InitDriverFunctions(struct dd_function_table *functions)
  91 {
  92    intelInitDriverFunctions(functions);
  93    i915InitStateFunctions(functions);
  94    i915InitFragProgFuncs(functions);
  95    functions->UpdateState = i915InvalidateState;
  96 }
  97
  98
  99 extern const struct tnl_pipeline_stage *intel_pipeline[];
 100
 101 GLboolean
 102 i915CreateContext(const __GLcontextModes * mesaVis,
 103                   __DRIcontextPrivate * driContextPriv,
 104                   void *sharedContextPrivate)
 105 {
 106    struct dd_function_table functions;
 107    struct i915_context *i915 =
 108       (struct i915_context *) CALLOC_STRUCT(i915_context);
 109    struct intel_context *intel = &i915->intel;
 110    GLcontext *ctx = &intel->ctx;
 111
 112    if (!i915)
 113       return GL_FALSE;
 114
 115    if (0)
 116       _mesa_printf("\ntexmem-0-3 branch\n\n");
 117
 118    i915InitVtbl(i915);
 119    i915InitMetaFuncs(i915);
 120
 121    i915InitDriverFunctions(&functions);
 122
 123    if (!intelInitContext(intel, mesaVis, driContextPriv,
 124                          sharedContextPrivate, &functions)) {
 125       FREE(i915);
 126       return GL_FALSE;
 127    }
 128
 129    _math_matrix_ctr(&intel->ViewportMatrix);
 130
 131    /* Initialize swrast, tnl driver tables: */
 132    intelInitSpanFuncs(ctx);
 133    intelInitTriFuncs(ctx);
 134
 135    /* Install the customized pipeline: */
 136    _tnl_destroy_pipeline(ctx);
 137    _tnl_install_pipeline(ctx, intel_pipeline);
 138
 139    if (intel->no_rast)
 140       FALLBACK(intel, INTEL_FALLBACK_USER, 1);
 141
 142    ctx->Const.MaxTextureUnits = I915_TEX_UNITS;
 143    ctx->Const.MaxTextureImageUnits = I915_TEX_UNITS;
 144    ctx->Const.MaxTextureCoordUnits = I915_TEX_UNITS;
 145    ctx->Const.MaxVarying = I915_TEX_UNITS;
 146    ctx->Const.MaxCombinedTextureImageUnits =
 147       ctx->Const.MaxVertexTextureImageUnits +
 148       ctx->Const.MaxTextureImageUnits;
 149
 150    /* Advertise the full hardware capabilities.  The new memory
 151     * manager should cope much better with overload situations:
 152     */
 153    ctx->Const.MaxTextureLevels = 12;
 154    ctx->Const.Max3DTextureLevels = 9;
 155    ctx->Const.MaxCubeTextureLevels = 12;
 156    ctx->Const.MaxTextureRectSize = (1 << 11);
 157    ctx->Const.MaxTextureUnits = I915_TEX_UNITS;
 158
 159    ctx->Const.MaxTextureMaxAnisotropy = 4.0;
 160
 161    /* GL_ARB_fragment_program limits - don't think Mesa actually
 162     * validates programs against these, and in any case one ARB
 163     * instruction can translate to more than one HW instruction, so
 164     * we'll still have to check and fallback each time.
 165     */
 166    ctx->Const.FragmentProgram.MaxNativeTemps = I915_MAX_TEMPORARY;
 167    ctx->Const.FragmentProgram.MaxNativeAttribs = 11;    /* 8 tex, 2 color, fog */
 168    ctx->Const.FragmentProgram.MaxNativeParameters = I915_MAX_CONSTANT;
 169    ctx->Const.FragmentProgram.MaxNativeAluInstructions = I915_MAX_ALU_INSN;
 170    ctx->Const.FragmentProgram.MaxNativeTexInstructions = I915_MAX_TEX_INSN;
 171    ctx->Const.FragmentProgram.MaxNativeInstructions = (I915_MAX_ALU_INSN +
 172                                                        I915_MAX_TEX_INSN);
 173    ctx->Const.FragmentProgram.MaxNativeTexIndirections =
 174       I915_MAX_TEX_INDIRECT;
 175    ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; /* I don't think we have one */
 176    ctx->Const.FragmentProgram.MaxEnvParams =
 177       MIN2(ctx->Const.FragmentProgram.MaxNativeParameters,
 178            ctx->Const.FragmentProgram.MaxEnvParams);
 179
 180    ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
 181
 182    ctx->Const.MaxDrawBuffers = 1;
 183
 184    _tnl_init_vertices(ctx, ctx->Const.MaxArrayLockSize + 12,
 185                       36 * sizeof(GLfloat));
 186
 187    intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf;
 188
 189    i915InitState(i915);
 190
 191    return GL_TRUE;
 192 }