366 lines
12 KiB
C
366 lines
12 KiB
C
/**************************************************************************
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*
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* Copyright 2003 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "main/mtypes.h"
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#include "main/enums.h"
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#include "main/colormac.h"
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#include "main/macros.h"
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#include "main/samplerobj.h"
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#include "intel_mipmap_tree.h"
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#include "intel_tex.h"
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#include "i830_context.h"
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#include "i830_reg.h"
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#include "intel_chipset.h"
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static GLuint
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translate_texture_format(GLuint mesa_format)
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{
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switch (mesa_format) {
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case MESA_FORMAT_L_UNORM8:
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return MAPSURF_8BIT | MT_8BIT_L8;
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case MESA_FORMAT_I_UNORM8:
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return MAPSURF_8BIT | MT_8BIT_I8;
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case MESA_FORMAT_LA_UNORM8:
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return MAPSURF_16BIT | MT_16BIT_AY88;
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case MESA_FORMAT_B5G6R5_UNORM:
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return MAPSURF_16BIT | MT_16BIT_RGB565;
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case MESA_FORMAT_B5G5R5A1_UNORM:
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return MAPSURF_16BIT | MT_16BIT_ARGB1555;
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case MESA_FORMAT_B4G4R4A4_UNORM:
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return MAPSURF_16BIT | MT_16BIT_ARGB4444;
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case MESA_FORMAT_B8G8R8A8_UNORM:
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return MAPSURF_32BIT | MT_32BIT_ARGB8888;
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case MESA_FORMAT_B8G8R8X8_UNORM:
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return MAPSURF_32BIT | MT_32BIT_XRGB8888;
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case MESA_FORMAT_YCBCR_REV:
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return (MAPSURF_422 | MT_422_YCRCB_NORMAL);
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case MESA_FORMAT_YCBCR:
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return (MAPSURF_422 | MT_422_YCRCB_SWAPY);
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case MESA_FORMAT_RGB_FXT1:
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case MESA_FORMAT_RGBA_FXT1:
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return (MAPSURF_COMPRESSED | MT_COMPRESS_FXT1);
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case MESA_FORMAT_RGBA_DXT1:
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case MESA_FORMAT_RGB_DXT1:
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return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT1);
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case MESA_FORMAT_RGBA_DXT3:
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return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT2_3);
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case MESA_FORMAT_RGBA_DXT5:
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return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT4_5);
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default:
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fprintf(stderr, "%s: bad image format %s\n", __func__,
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_mesa_get_format_name(mesa_format));
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abort();
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return 0;
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}
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}
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/* The i915 (and related graphics cores) do not support GL_CLAMP. The
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* Intel drivers for "other operating systems" implement GL_CLAMP as
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* GL_CLAMP_TO_EDGE, so the same is done here.
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*/
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static GLuint
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translate_wrap_mode(GLenum wrap)
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{
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switch (wrap) {
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case GL_REPEAT:
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return TEXCOORDMODE_WRAP;
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case GL_CLAMP:
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case GL_CLAMP_TO_EDGE:
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return TEXCOORDMODE_CLAMP; /* not really correct */
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case GL_CLAMP_TO_BORDER:
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return TEXCOORDMODE_CLAMP_BORDER;
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case GL_MIRRORED_REPEAT:
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return TEXCOORDMODE_MIRROR;
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default:
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return TEXCOORDMODE_WRAP;
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}
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}
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/* Recalculate all state from scratch. Perhaps not the most
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* efficient, but this has gotten complex enough that we need
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* something which is understandable and reliable.
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*/
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static bool
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i830_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
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{
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struct gl_context *ctx = &intel->ctx;
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struct i830_context *i830 = i830_context(ctx);
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struct gl_texture_unit *tUnit = &ctx->Texture.Unit[unit];
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struct gl_texture_object *tObj = tUnit->_Current;
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struct intel_texture_object *intelObj = intel_texture_object(tObj);
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struct gl_texture_image *firstImage;
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struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
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GLuint *state = i830->state.Tex[unit], format, pitch;
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GLint lodbias;
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GLubyte border[4];
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GLuint dst_x, dst_y;
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memset(state, 0, sizeof(*state));
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/*We need to refcount these. */
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if (i830->state.tex_buffer[unit] != NULL) {
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drm_intel_bo_unreference(i830->state.tex_buffer[unit]);
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i830->state.tex_buffer[unit] = NULL;
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}
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if (!intel_finalize_mipmap_tree(intel, unit))
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return false;
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/* Get first image here, since intelObj->firstLevel will get set in
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* the intel_finalize_mipmap_tree() call above.
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*/
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firstImage = tObj->Image[0][tObj->Attrib.BaseLevel];
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intel_miptree_get_image_offset(intelObj->mt, tObj->Attrib.BaseLevel, 0,
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&dst_x, &dst_y);
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drm_intel_bo_reference(intelObj->mt->region->bo);
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i830->state.tex_buffer[unit] = intelObj->mt->region->bo;
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pitch = intelObj->mt->region->pitch;
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/* XXX: This calculation is probably broken for tiled images with
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* a non-page-aligned offset.
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*/
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i830->state.tex_offset[unit] = dst_x * intelObj->mt->cpp + dst_y * pitch;
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format = translate_texture_format(firstImage->TexFormat);
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state[I830_TEXREG_TM0LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2 |
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(LOAD_TEXTURE_MAP0 << unit) | 4);
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state[I830_TEXREG_TM0S1] =
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(((firstImage->Height - 1) << TM0S1_HEIGHT_SHIFT) |
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((firstImage->Width - 1) << TM0S1_WIDTH_SHIFT) | format);
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if (intelObj->mt->region->tiling != I915_TILING_NONE) {
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state[I830_TEXREG_TM0S1] |= TM0S1_TILED_SURFACE;
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if (intelObj->mt->region->tiling == I915_TILING_Y)
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state[I830_TEXREG_TM0S1] |= TM0S1_TILE_WALK;
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}
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state[I830_TEXREG_TM0S2] =
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((((pitch / 4) - 1) << TM0S2_PITCH_SHIFT) | TM0S2_CUBE_FACE_ENA_MASK);
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{
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if (tObj->Target == GL_TEXTURE_CUBE_MAP)
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state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit) |
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CUBE_NEGX_ENABLE |
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CUBE_POSX_ENABLE |
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CUBE_NEGY_ENABLE |
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CUBE_POSY_ENABLE |
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CUBE_NEGZ_ENABLE | CUBE_POSZ_ENABLE);
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else
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state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit));
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}
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{
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GLuint minFilt, mipFilt, magFilt;
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float maxlod;
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uint32_t minlod_fixed, maxlod_fixed;
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switch (sampler->Attrib.MinFilter) {
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case GL_NEAREST:
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minFilt = FILTER_NEAREST;
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mipFilt = MIPFILTER_NONE;
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break;
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case GL_LINEAR:
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minFilt = FILTER_LINEAR;
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mipFilt = MIPFILTER_NONE;
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break;
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case GL_NEAREST_MIPMAP_NEAREST:
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minFilt = FILTER_NEAREST;
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mipFilt = MIPFILTER_NEAREST;
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break;
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case GL_LINEAR_MIPMAP_NEAREST:
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minFilt = FILTER_LINEAR;
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mipFilt = MIPFILTER_NEAREST;
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break;
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case GL_NEAREST_MIPMAP_LINEAR:
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minFilt = FILTER_NEAREST;
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mipFilt = MIPFILTER_LINEAR;
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break;
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case GL_LINEAR_MIPMAP_LINEAR:
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minFilt = FILTER_LINEAR;
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mipFilt = MIPFILTER_LINEAR;
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break;
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default:
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return false;
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}
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if (sampler->Attrib.MaxAnisotropy > 1.0) {
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minFilt = FILTER_ANISOTROPIC;
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magFilt = FILTER_ANISOTROPIC;
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/* no trilinear + anisotropic */
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mipFilt = MIPFILTER_NEAREST;
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}
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else {
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switch (sampler->Attrib.MagFilter) {
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case GL_NEAREST:
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magFilt = FILTER_NEAREST;
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break;
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case GL_LINEAR:
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magFilt = FILTER_LINEAR;
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break;
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default:
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return false;
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}
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}
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lodbias = (int) ((tUnit->LodBias + sampler->Attrib.LodBias) * 16.0);
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if (lodbias < -64)
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lodbias = -64;
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if (lodbias > 63)
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lodbias = 63;
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state[I830_TEXREG_TM0S3] = ((lodbias << TM0S3_LOD_BIAS_SHIFT) &
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TM0S3_LOD_BIAS_MASK);
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#if 0
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/* YUV conversion:
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*/
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if (firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR ||
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firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV)
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state[I830_TEXREG_TM0S3] |= SS2_COLORSPACE_CONVERSION;
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#endif
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/* We get one field with fraction bits for the maximum
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* addressable (smallest resolution) LOD. Use it to cover both
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* MAX_LEVEL and MAX_LOD.
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*/
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minlod_fixed = U_FIXED(CLAMP(sampler->Attrib.MinLod, 0.0, 11), 4);
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maxlod = MIN2(sampler->Attrib.MaxLod, tObj->_MaxLevel - tObj->Attrib.BaseLevel);
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if (intel->intelScreen->deviceID == PCI_CHIP_I855_GM ||
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intel->intelScreen->deviceID == PCI_CHIP_I865_G) {
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maxlod_fixed = U_FIXED(CLAMP(maxlod, 0.0, 11.75), 2);
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maxlod_fixed = MAX2(maxlod_fixed, (minlod_fixed + 3) >> 2);
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state[I830_TEXREG_TM0S3] |= maxlod_fixed << TM0S3_MIN_MIP_SHIFT;
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state[I830_TEXREG_TM0S2] |= TM0S2_LOD_PRECLAMP;
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} else {
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maxlod_fixed = U_FIXED(CLAMP(maxlod, 0.0, 11), 0);
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maxlod_fixed = MAX2(maxlod_fixed, (minlod_fixed + 15) >> 4);
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state[I830_TEXREG_TM0S3] |= maxlod_fixed << TM0S3_MIN_MIP_SHIFT_830;
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}
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state[I830_TEXREG_TM0S3] |= minlod_fixed << TM0S3_MAX_MIP_SHIFT;
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state[I830_TEXREG_TM0S3] |= ((minFilt << TM0S3_MIN_FILTER_SHIFT) |
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(mipFilt << TM0S3_MIP_FILTER_SHIFT) |
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(magFilt << TM0S3_MAG_FILTER_SHIFT));
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}
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{
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GLenum ws = sampler->Attrib.WrapS;
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GLenum wt = sampler->Attrib.WrapT;
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/* 3D textures not available on i830
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*/
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if (tObj->Target == GL_TEXTURE_3D)
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return false;
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state[I830_TEXREG_MCS] = (_3DSTATE_MAP_COORD_SET_CMD |
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MAP_UNIT(unit) |
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ENABLE_TEXCOORD_PARAMS |
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ss3 |
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ENABLE_ADDR_V_CNTL |
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TEXCOORD_ADDR_V_MODE(translate_wrap_mode(wt))
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| ENABLE_ADDR_U_CNTL |
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TEXCOORD_ADDR_U_MODE(translate_wrap_mode
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(ws)));
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}
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/* convert border color from float to ubyte */
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CLAMPED_FLOAT_TO_UBYTE(border[0], sampler->Attrib.state.border_color.f[0]);
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CLAMPED_FLOAT_TO_UBYTE(border[1], sampler->Attrib.state.border_color.f[1]);
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CLAMPED_FLOAT_TO_UBYTE(border[2], sampler->Attrib.state.border_color.f[2]);
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CLAMPED_FLOAT_TO_UBYTE(border[3], sampler->Attrib.state.border_color.f[3]);
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state[I830_TEXREG_TM0S4] = PACK_COLOR_8888(border[3],
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border[0],
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border[1],
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border[2]);
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I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(unit), true);
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/* memcmp was already disabled, but definitely won't work as the
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* region might now change and that wouldn't be detected:
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*/
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I830_STATECHANGE(i830, I830_UPLOAD_TEX(unit));
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return true;
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}
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void
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i830UpdateTextureState(struct intel_context *intel)
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{
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struct i830_context *i830 = i830_context(&intel->ctx);
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bool ok = true;
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GLuint i;
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for (i = 0; i < I830_TEX_UNITS && ok; i++) {
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if (intel->ctx.Texture.Unit[i]._Current) {
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switch (intel->ctx.Texture.Unit[i]._Current->Target) {
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case GL_TEXTURE_1D:
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case GL_TEXTURE_2D:
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case GL_TEXTURE_CUBE_MAP:
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ok = i830_update_tex_unit(intel, i, TEXCOORDS_ARE_NORMAL);
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break;
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case GL_TEXTURE_RECTANGLE:
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ok = i830_update_tex_unit(intel, i, TEXCOORDS_ARE_IN_TEXELUNITS);
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break;
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case GL_TEXTURE_3D:
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default:
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ok = false;
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break;
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}
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} else {
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struct i830_context *i830 = i830_context(&intel->ctx);
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if (i830->state.active & I830_UPLOAD_TEX(i))
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I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(i), false);
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if (i830->state.tex_buffer[i] != NULL) {
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drm_intel_bo_unreference(i830->state.tex_buffer[i]);
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i830->state.tex_buffer[i] = NULL;
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}
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}
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}
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FALLBACK(intel, I830_FALLBACK_TEXTURE, !ok);
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if (ok)
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i830EmitTextureBlend(i830);
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}
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