diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915/i830_context.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915/i830_context.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915/i830_context.c b/src/mesa/drivers/dri/i915/i830_context.c new file mode 100644 index 0000000000..4acec31265 --- /dev/null +++ b/src/mesa/drivers/dri/i915/i830_context.c @@ -0,0 +1,143 @@ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + **************************************************************************/ + +#include "i830_context.h" +#include "imports.h" +#include "texmem.h" +#include "intel_tex.h" +#include "tnl/tnl.h" +#include "tnl/t_vertex.h" +#include "tnl/t_context.h" + + +/*************************************** + * Mesa's Driver Functions + ***************************************/ + +/* 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 *i830GetString( GLcontext *ctx, GLenum name ) +{ + if (name == GL_EXTENSIONS) + return + "GL_ARB_multitexture " + "GL_ARB_texture_border_clamp " + "GL_ARB_texture_compression " + "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_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 i830InitDriverFunctions( struct dd_function_table *functions ) +{ + intelInitDriverFunctions( functions ); + i830InitStateFuncs( functions ); + i830InitTextureFuncs( functions ); + functions->GetString = i830GetString; +} + + +GLboolean i830CreateContext( const __GLcontextModes *mesaVis, + __DRIcontextPrivate *driContextPriv, + void *sharedContextPrivate) +{ + struct dd_function_table functions; + i830ContextPtr i830 = (i830ContextPtr) CALLOC_STRUCT(i830_context); + intelContextPtr intel = &i830->intel; + GLcontext *ctx = &intel->ctx; + if (!i830) return GL_FALSE; + + i830InitVtbl( i830 ); + i830InitDriverFunctions( &functions ); + + if (!intelInitContext( intel, mesaVis, driContextPriv, + sharedContextPrivate, &functions )) { + FREE(i830); + return GL_FALSE; + } + + intel->ctx.Const.MaxTextureUnits = I830_TEX_UNITS; + intel->ctx.Const.MaxTextureImageUnits = I830_TEX_UNITS; + intel->ctx.Const.MaxTextureCoordUnits = I830_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 i830_texture_object ), + (destroy_texture_object_t *)intelDestroyTexObj ); + + /* FIXME: driCalculateMaxTextureLevels assumes that mipmaps are tightly + * FIXME: packed, but they're not in Intel graphics hardware. + */ + intel->ctx.Const.MaxTextureUnits = 1; + driCalculateMaxTextureLevels( intel->texture_heaps, + intel->nr_heaps, + &intel->ctx.Const, + 4, + 11, /* max 2D texture size is 2048x2048 */ + 8, /* max 3D texture size is 256^3 */ + 0, /* max CUBE. not supported */ + 0, /* max RECT. supported, but not enabled */ + 12, + GL_FALSE ); + intel->ctx.Const.MaxTextureUnits = I830_TEX_UNITS; + + _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12, + 18 * sizeof(GLfloat) ); + + intel->verts = TNL_CONTEXT(ctx)->clipspace.vertex_buf; + + i830InitState( i830 ); + + + _tnl_allow_vertex_fog( ctx, 1 ); + _tnl_allow_pixel_fog( ctx, 0 ); + + return GL_TRUE; +} + |