diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/i915_context.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_context.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_context.c b/src/mesa/drivers/dri/i915/i915_context.c new file mode 100644 index 0000000000..f2cdcfc64f --- /dev/null +++ b/src/mesa/drivers/dri/i915/i915_context.c @@ -0,0 +1,211 @@ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + **************************************************************************/ + +#include "i915_context.h" +#include "imports.h" +#include "intel_tex.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 "array_cache/acache.h" + +#include "utils.h" +#include "i915_reg.h" + +/*************************************** + * Mesa's Driver Functions + ***************************************/ + + +static const char * const card_extensions[] = +{ + "GL_ARB_fragment_program", + "GL_ARB_texture_cube_map", + "GL_EXT_blend_equation_separate", + "GL_ATI_blend_equation_separate", + "GL_ARB_point_parameters", + NULL +}; + +/* Override intel default. + */ +static void i915InvalidateState( GLcontext *ctx, GLuint new_state ) +{ + _swrast_InvalidateState( ctx, new_state ); + _swsetup_InvalidateState( ctx, new_state ); + _ac_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->nr_params) + p->params_uptodate = 0; + } + +} + +/* This is the extension list explicitly enabled by the client and + * excludes functionality available in Mesa and also excludes legacy + * extensions. It is recognized that in an open source driver, those + * extensions will probably be re-enabled. + */ +static const GLubyte *i915GetString( GLcontext *ctx, GLenum name ) +{ + if (name == GL_EXTENSIONS) + return + "GL_ARB_fragment_program " + "GL_ARB_multitexture " + "GL_ARB_point_parameters " + "GL_ARB_texture_border_clamp " + "GL_ARB_texture_compression " + "GL_ARB_texture_cube_map " + "GL_ARB_texture_env_add " + "GL_ARB_texture_env_combine " + "GL_ARB_texture_env_dot3 " + "GL_ARB_texture_mirrored_repeat " + "GL_ARB_transpose_matrix " + "GL_ARB_vertex_buffer_object " + "GL_ARB_vertex_program " + "GL_ARB_window_pos " + "GL_EXT_abgr " + "GL_EXT_bgra " + "GL_EXT_blend_color " + "GL_EXT_blend_func_separate " + "GL_EXT_blend_minmax " + "GL_EXT_blend_subtract " + "GL_EXT_clip_volume_hint " + "GL_EXT_compiled_vertex_array " + "GL_EXT_draw_range_elements " + "GL_EXT_fog_coord " + "GL_EXT_multi_draw_arrays " + "GL_EXT_packed_pixels " + "GL_EXT_rescale_normal " + "GL_EXT_secondary_color " + "GL_EXT_separate_specular_color " + "GL_EXT_stencil_wrap " + "GL_EXT_texture3D " + "GL_EXT_texture_env_add " + "GL_EXT_texture_env_combine " + "GL_EXT_texture_filter_anisotropic " + "GL_IBM_texture_mirrored_repeat " + "GL_MESA_ycbcr_texture " + "GL_MESA_window_pos " + "GL_NV_texgen_reflection " + "GL_SGIS_generate_mipmap"; + + return intelGetString( ctx, name ); +} + + +static void i915InitDriverFunctions( struct dd_function_table *functions ) +{ + intelInitDriverFunctions( functions ); + i915InitStateFunctions( functions ); + i915InitTextureFuncs( functions ); + i915InitFragProgFuncs( functions ); + functions->UpdateState = i915InvalidateState; + functions->GetString = i915GetString; +} + + + +GLboolean i915CreateContext( const __GLcontextModes *mesaVis, + __DRIcontextPrivate *driContextPriv, + void *sharedContextPrivate) +{ + struct dd_function_table functions; + i915ContextPtr i915 = (i915ContextPtr) CALLOC_STRUCT(i915_context); + intelContextPtr intel = &i915->intel; + GLcontext *ctx = &intel->ctx; + + if (!i915) return GL_FALSE; + + i915InitVtbl( i915 ); + + i915InitDriverFunctions( &functions ); + + if (!intelInitContext( intel, mesaVis, driContextPriv, + sharedContextPrivate, &functions )) { + FREE(i915); + return GL_FALSE; + } + + ctx->Const.MaxTextureUnits = I915_TEX_UNITS; + ctx->Const.MaxTextureImageUnits = I915_TEX_UNITS; + ctx->Const.MaxTextureCoordUnits = I915_TEX_UNITS; + + intel->nr_heaps = 1; + intel->texture_heaps[0] = + driCreateTextureHeap( 0, intel, + intel->intelScreen->textureSize, + 12, + I830_NR_TEX_REGIONS, + intel->sarea->texList, + & intel->sarea->texAge, + & intel->swapped, + sizeof( struct i915_texture_object ), + (destroy_texture_object_t *)intelDestroyTexObj ); + + /* FIXME: driCalculateMaxTextureLevels assumes that mipmaps are tightly + * FIXME: packed, but they're not in Intel graphics hardware. + */ + ctx->Const.MaxTextureUnits = 1; + driCalculateMaxTextureLevels( intel->texture_heaps, + intel->nr_heaps, + &intel->ctx.Const, + 4, + 11, /* max 2D texture size is 2048x2048 */ + 8, /* 3D texture */ + 11, /* cube texture. */ + 0, /* max RECT. supported, but not enabled */ + 12, + GL_FALSE ); + ctx->Const.MaxTextureUnits = I915_TEX_UNITS; + + /* 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.MaxFragmentProgramTemps = I915_MAX_TEMPORARY; + ctx->Const.MaxFragmentProgramAttribs = 11; /* 8 tex, 2 color, fog */ + ctx->Const.MaxFragmentProgramLocalParams = I915_MAX_CONSTANT; + ctx->Const.MaxFragmentProgramEnvParams = I915_MAX_CONSTANT; + ctx->Const.MaxFragmentProgramAluInstructions = I915_MAX_ALU_INSN; + ctx->Const.MaxFragmentProgramTexInstructions = I915_MAX_TEX_INSN; + ctx->Const.MaxFragmentProgramInstructions = (I915_MAX_ALU_INSN + + I915_MAX_TEX_INSN); + ctx->Const.MaxFragmentProgramTexIndirections = I915_MAX_TEX_INDIRECT; + ctx->Const.MaxFragmentProgramAddressRegs = 0; /* I don't think we have one */ + + + driInitExtensions( ctx, card_extensions, GL_FALSE ); + + + _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12, + 36 * sizeof(GLfloat) ); + + intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf; + + i915InitState( i915 ); + + return GL_TRUE; +} + |