diff options
| -rw-r--r-- | src/mesa/swrast/s_fragprog.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c index c59e24debed..517b63c91b2 100644 --- a/src/mesa/swrast/s_fragprog.c +++ b/src/mesa/swrast/s_fragprog.c @@ -1358,6 +1358,8 @@ execute_program( GLcontext *ctx, case OPCODE_TXB: /* GL_ARB_fragment_program only */ /* Texel lookup with LOD bias */ { + const struct gl_texture_unit *texUnit + = &ctx->Texture.Unit[inst->TexSrcUnit]; GLfloat coord[4], color[4], lambda, bias; if (inst->SrcReg[0].File == PROGRAM_INPUT && inst->SrcReg[0].Index == FRAG_ATTRIB_TEX0+inst->TexSrcUnit) @@ -1366,9 +1368,9 @@ execute_program( GLcontext *ctx, lambda = 0.0; fetch_vector4(ctx, &inst->SrcReg[0], machine, program, coord); /* coord[3] is the bias to add to lambda */ - bias = ctx->Texture.Unit[inst->TexSrcUnit].LodBias - + ctx->Texture.Unit[inst->TexSrcUnit]._Current->LodBias - + coord[3]; + bias = texUnit->LodBias + coord[3]; + if (texUnit->_Current) + bias += texUnit->_Current->LodBias; fetch_texel(ctx, coord, lambda + bias, inst->TexSrcUnit, color); store_vector4( inst, machine, color ); } |