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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "i915_context.h"
#include "main/imports.h"
#include "main/macros.h"
#include "intel_tris.h"
#include "tnl/t_context.h"
#include "tnl/t_pipeline.h"
#include "tnl/t_vertex.h"
#include "swrast/swrast.h"
#include "swrast_setup/swrast_setup.h"
#include "tnl/tnl.h"
#include "i915_reg.h"
#include "i915_program.h"
#include "intel_span.h"
/***************************************
* Mesa's Driver Functions
***************************************/
/* Override intel default.
*/
static void
i915InvalidateState(GLcontext * ctx, GLuint new_state)
{
_swrast_InvalidateState(ctx, new_state);
_swsetup_InvalidateState(ctx, new_state);
_vbo_InvalidateState(ctx, new_state);
_tnl_InvalidateState(ctx, new_state);
_tnl_invalidate_vertex_state(ctx, new_state);
intel_context(ctx)->NewGLState |= new_state;
/* Todo: gather state values under which tracked parameters become
* invalidated, add callbacks for things like
* ProgramLocalParameters, etc.
*/
{
struct i915_fragment_program *p =
(struct i915_fragment_program *) ctx->FragmentProgram._Current;
if (p && p->nr_params)
p->params_uptodate = 0;
}
if (new_state & (_NEW_FOG | _NEW_HINT | _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS))
i915_update_fog(ctx);
if (new_state & (_NEW_STENCIL | _NEW_BUFFERS | _NEW_POLYGON))
i915_update_stencil(ctx);
if (new_state & (_NEW_LIGHT))
i915_update_provoking_vertex(ctx);
if (new_state & (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS))
i915_update_program(ctx);
}
static void
i915InitDriverFunctions(struct dd_function_table *functions)
{
intelInitDriverFunctions(functions);
i915InitStateFunctions(functions);
i915InitFragProgFuncs(functions);
functions->UpdateState = i915InvalidateState;
}
extern const struct tnl_pipeline_stage *intel_pipeline[];
GLboolean
i915CreateContext(int api,
const struct gl_config * mesaVis,
__DRIcontext * driContextPriv,
void *sharedContextPrivate)
{
struct dd_function_table functions;
struct i915_context *i915 =
(struct i915_context *) CALLOC_STRUCT(i915_context);
struct intel_context *intel = &i915->intel;
GLcontext *ctx = &intel->ctx;
if (!i915)
return GL_FALSE;
i915InitVtbl(i915);
i915InitDriverFunctions(&functions);
if (!intelInitContext(intel, api, mesaVis, driContextPriv,
sharedContextPrivate, &functions)) {
FREE(i915);
return GL_FALSE;
}
_math_matrix_ctr(&intel->ViewportMatrix);
/* Initialize swrast, tnl driver tables: */
intelInitSpanFuncs(ctx);
intelInitTriFuncs(ctx);
/* Install the customized pipeline: */
_tnl_destroy_pipeline(ctx);
_tnl_install_pipeline(ctx, intel_pipeline);
if (intel->no_rast)
FALLBACK(intel, INTEL_FALLBACK_USER, 1);
ctx->Const.MaxTextureUnits = I915_TEX_UNITS;
ctx->Const.MaxTextureImageUnits = I915_TEX_UNITS;
ctx->Const.MaxTextureCoordUnits = I915_TEX_UNITS;
ctx->Const.MaxVarying = I915_TEX_UNITS;
ctx->Const.MaxCombinedTextureImageUnits =
ctx->Const.MaxVertexTextureImageUnits +
ctx->Const.MaxTextureImageUnits;
/* Advertise the full hardware capabilities. The new memory
* manager should cope much better with overload situations:
*/
ctx->Const.MaxTextureLevels = 12;
ctx->Const.Max3DTextureLevels = 9;
ctx->Const.MaxCubeTextureLevels = 12;
ctx->Const.MaxTextureRectSize = (1 << 11);
ctx->Const.MaxTextureUnits = I915_TEX_UNITS;
ctx->Const.MaxTextureMaxAnisotropy = 4.0;
/* GL_ARB_fragment_program limits - don't think Mesa actually
* validates programs against these, and in any case one ARB
* instruction can translate to more than one HW instruction, so
* we'll still have to check and fallback each time.
*/
ctx->Const.FragmentProgram.MaxNativeTemps = I915_MAX_TEMPORARY;
ctx->Const.FragmentProgram.MaxNativeAttribs = 11; /* 8 tex, 2 color, fog */
ctx->Const.FragmentProgram.MaxNativeParameters = I915_MAX_CONSTANT;
ctx->Const.FragmentProgram.MaxNativeAluInstructions = I915_MAX_ALU_INSN;
ctx->Const.FragmentProgram.MaxNativeTexInstructions = I915_MAX_TEX_INSN;
ctx->Const.FragmentProgram.MaxNativeInstructions = (I915_MAX_ALU_INSN +
I915_MAX_TEX_INSN);
ctx->Const.FragmentProgram.MaxNativeTexIndirections =
I915_MAX_TEX_INDIRECT;
ctx->Const.FragmentProgram.MaxNativeAddressRegs = 0; /* I don't think we have one */
ctx->Const.FragmentProgram.MaxEnvParams =
MIN2(ctx->Const.FragmentProgram.MaxNativeParameters,
ctx->Const.FragmentProgram.MaxEnvParams);
ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
/* FINISHME: Are there other options that should be enabled for software
* FINISHME: vertex shaders?
*/
ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].EmitCondCodes = GL_TRUE;
ctx->ShaderCompilerOptions[MESA_SHADER_FRAGMENT].EmitNoIfs = GL_TRUE;
ctx->ShaderCompilerOptions[MESA_SHADER_FRAGMENT].EmitNoNoise = GL_TRUE;
ctx->Const.MaxDrawBuffers = 1;
_tnl_init_vertices(ctx, ctx->Const.MaxArrayLockSize + 12,
36 * sizeof(GLfloat));
intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf;
i915InitState(i915);
return GL_TRUE;
}
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